[Enter `^Ec?' for help] coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 bootblock starting... CPU: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz CPU: ID 806e9, Kabylake H0, ucode: 00000097 CPU: AES supported, TXT NOT supported, VT supported MCH: device id 590c (rev 02) is Kabylake-Y PCH: device id 9d4b (rev 21) is Kabylake-Y iHDCP 2.2 Premium IGD: device id 591c (rev 02) is Amberlake ULX GT2 VBOOT: Loading verstage. CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/verstage' CBFS: Found @ offset 1a0a80 size f47c coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 verstage starting... Probing TPM: . done! TPM ready after 0 ms Connected to device vid:did:rid of 1ae0:0028:00 Firmware version: B2-C:0 RO_A:0.0.10/29d77172 RW_B:0.3.15/cr50_v1.9308_87_mp.224-6339b6f Initialized TPM device CR50 revision 0 tlcl_send_startup: Startup return code is 0 TPM: setup succeeded src/security/tpm/tss/tcg-2.0/tss.c:188 index 0x1007 return code 0 Chrome EC: UHEPI supported Phase 1 FMAP: Found "FLASH" version 1.1 at c10000. FMAP: base = ff000000 size = 1000000 #areas = 33 FMAP: area GBB found @ c11000 (978944 bytes) VB2:vb2_check_recovery() Recovery reason from previous boot: 0x0 / 0x0 Phase 2 Phase 3 FMAP: area GBB found @ c11000 (978944 bytes) VB2:vb2_report_dev_firmware() This is developer signed firmware FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) VB2:vb2_verify_keyblock() Checking key block signature... FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) VB2:vb2_verify_fw_preamble() Verifying preamble. Phase 4 FMAP: area FW_MAIN_B found @ 5f8000 (4030400 bytes) VB2:vb2api_init_hash() HW crypto for hash_alg 2 not supported, using SW VB2:vb2_rsa_verify_digest() Digest check failed! VB2:vb2_fail() Need recovery, reason: 0x1b / 0x7 Saving nvdata Reboot requested (10020007) board_reset() called! full_reset() called! coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 bootblock starting... CPU: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz CPU: ID 806e9, Kabylake H0, ucode: 00000097 CPU: AES supported, TXT NOT supported, VT supported MCH: device id 590c (rev 02) is Kabylake-Y PCH: device id 9d4b (rev 21) is Kabylake-Y iHDCP 2.2 Premium IGD: device id 591c (rev 02) is Amberlake ULX GT2 VBOOT: Loading verstage. CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/verstage' CBFS: Found @ offset 1a0a80 size f47c coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 verstage starting... Probing TPM: . done! TPM ready after 0 ms Connected to device vid:did:rid of 1ae0:0028:00 Firmware version: B2-C:0 RO_A:0.0.10/29d77172 RW_B:0.3.15/cr50_v1.9308_87_mp.224-6339b6f Initialized TPM device CR50 revision 0 tlcl_send_startup: Startup return code is 0 TPM: setup succeeded src/security/tpm/tss/tcg-2.0/tss.c:188 index 0x1007 return code 0 Chrome EC: UHEPI supported Phase 1 FMAP: Found "FLASH" version 1.1 at c10000. FMAP: base = ff000000 size = 1000000 #areas = 33 FMAP: area GBB found @ c11000 (978944 bytes) VB2:vb2_check_recovery() Recovery reason from previous boot: 0x1b / 0x7 VB2:vb2_check_recovery() We have a recovery request: 0x1b / 0x0 Recovery requested (1009000e) Saving nvdata tlcl_extend: response is 0 tlcl_extend: response is 0 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/romstage' CBFS: Found @ offset 80 size 10ffc coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 romstage starting... pm1_sts: 0100 pm1_en: 0000 pm1_cnt: 00001c00 gpe0_sts[0]: 00000000 gpe0_en[0]: 00000000 gpe0_sts[1]: 00000000 gpe0_en[1]: 00000000 gpe0_sts[2]: 00000001 gpe0_en[2]: 00000000 gpe0_sts[3]: 00000000 gpe0_en[3]: 00010000 TCO_STS: 0000 0000 GEN_PMCON: e0040200 0000523a GBLRST_CAUSE: 00000000 00000000 prev_sleep_state 5 Boot Count incremented to 46840 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fspm.bin' CBFS: Found @ offset 103fc0 size 63000 Chrome EC: UHEPI supported FMAP: Found "FLASH" version 1.1 at c10000. FMAP: base = ff000000 size = 1000000 #areas = 33 FMAP: area RECOVERY_MRC_CACHE found @ 9d0000 (65536 bytes) Probing TPM: done! Connected to device vid:did:rid of 1ae0:0028:00 Firmware version: B2-C:0 RO_A:0.0.10/29d77172 RW_B:0.3.15/cr50_v1.9308_87_mp.224-6339b6f Initialized TPM device CR50 revision 0 src/security/tpm/tss/tcg-2.0/tss.c:188 index 0x100b return code 0 MRC: Hash comparison successful. Using data from RECOVERY_MRC_CACHE MRC cache found, size 1868 bootmode is set to :2 SPD index 1 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'spd.bin' CBFS: Found @ offset 1a0240 size 800 SPD: module type is LPDDR3 SPD: module part is K4E8E324EB-EGCF SPD: banks 8, ranks 1, rows 15, columns 10, density 8192 Mb SPD: device width 32 bits, bus width 64 bits SPD: module size is 2048 MB (per channel) CBMEM: IMD: root @ 7afff000 254 entries. IMD: root @ 7affec00 62 entries. External stage cache: IMD: root @ 7b3ff000 254 entries. IMD: root @ 7b3fec00 62 entries. creating vboot_handoff structure Chrome EC: clear events_b mask to 0x0000000021004000 src/security/tpm/tss/tcg-2.0/tss.c:188 index 0x100b return code 0 tlcl_write: response is 0 src/security/tpm/tss/tcg-2.0/tss.c:188 index 0x100b return code 0 MRC: TPM MRC hash updated successfully. 2 DIMMs found top_of_ram = 0x7b000000 MTRR Range: Start=7a000000 End=7b000000 (Size 1000000) MTRR Range: Start=7b000000 End=7b800000 (Size 800000) MTRR Range: Start=ff000000 End=0 (Size 1000000) CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/postcar' CBFS: Found @ offset 197000 size 3f04 Decompressing stage fallback/postcar @ 0x7abd0fc0 (32720 bytes) Loading module at 7abd1000 with entry 7abd1000. filesize: 0x3cd0 memsize: 0x7f90 Processing 118 relocs. Offset value of 0x78bd1000 coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 postcar starting... CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/ramstage' CBFS: Found @ offset e8d80 size 1a462 Decompressing stage fallback/ramstage @ 0x7ab05fc0 (826808 bytes) Loading module at 7ab06000 with entry 7ab06000. filesize: 0x38d90 memsize: 0xc9d78 Processing 3657 relocs. Offset value of 0x79d06000 coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 ramstage starting... FMAP: Found "FLASH" version 1.1 at c10000. FMAP: base = ff000000 size = 1000000 #areas = 33 FMAP: area RO_VPD found @ c00000 (16384 bytes) WARNING: RO_VPD is uninitialized or empty. FMAP: area RW_VPD found @ 9f8000 (8192 bytes) FMAP: area RW_VPD found @ 9f8000 (8192 bytes) Normal boot. BS: BS_PRE_DEVICE times (us): entry 0 run 30 exit 0 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'cpu_microcode_blob.bin' CBFS: Found @ offset 11100 size d7c00 microcode: sig=0x806e9 pf=0x10 revision=0x97 Skip microcode update CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fsps.bin' CBFS: Found @ offset 167fc0 size 2f000 Detected 2 core, 4 thread CPU. Setting up SMI for CPU IED base = 0x7b400000 IED size = 0x00400000 Will perform SMM setup. CPU: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz. Loading module at 00030000 with entry 00030000. filesize: 0x170 memsize: 0x170 Processing 16 relocs. Offset value of 0x00030000 Attempting to start 3 APs Waiting for 10ms after sending INIT. Waiting for 1st SIPI to complete...done. AP: slot 2 apic_id 2. AP: slot 3 apic_id 3. Waiting for 2nd SIPI to complete...done. AP: slot 1 apic_id 1. Loading module at 00038000 with entry 00038000. filesize: 0x1a8 memsize: 0x1a8 Processing 13 relocs. Offset value of 0x00038000 SMM Module: stub loaded at 00038000. Will call 7ab21603(00000000) Installing SMM handler to 0x7b000000 Loading module at 7b010000 with entry 7b010a19. filesize: 0x3b08 memsize: 0x8bc0 Processing 243 relocs. Offset value of 0x7b010000 Loading module at 7b008000 with entry 7b008000. filesize: 0x1a8 memsize: 0x1a8 Processing 13 relocs. Offset value of 0x7b008000 SMM Module: placing jmp sequence at 7b007c00 rel16 0x03fd SMM Module: placing jmp sequence at 7b007800 rel16 0x07fd SMM Module: placing jmp sequence at 7b007400 rel16 0x0bfd SMM Module: stub loaded at 7b008000. Will call 7b010a19(00000000) Clearing SMI status registers SMI_STS: PM1 PM1_STS: PWRBTN TCO_STS: BOOT SECOND_TO New SMBASE 0x7b000000 In relocation handler: CPU 0 New SMBASE=0x7b000000 IEDBASE=0x7b400000 Writing SMRR. base = 0x7b000006, mask=0xff800800 Relocation complete. New SMBASE 0x7afffc00 In relocation handler: CPU 1 New SMBASE=0x7afffc00 IEDBASE=0x7b400000 Writing SMRR. base = 0x7b000006, mask=0xff800800 Relocation complete. New SMBASE 0x7afff400 In relocation handler: CPU 3 New SMBASE=0x7afff400 IEDBASE=0x7b400000 Writing SMRR. base = 0x7b000006, mask=0xff800800 Relocation complete. New SMBASE 0x7afff800 In relocation handler: CPU 2 New SMBASE=0x7afff800 IEDBASE=0x7b400000 Writing SMRR. base = 0x7b000006, mask=0xff800800 Relocation complete. Initializing CPU #0 CPU: vendor Intel device 806e9 CPU: family 06, model 8e, stepping 09 Setting up local APIC... apic_id: 0x00 done. Turbo is available but hidden Turbo has been enabled SGX : param.enable = 0 Skip microcode update CPU #0 initialized Initializing CPU #1 Initializing CPU #2 Initializing CPU #3 CPU: vendor Intel device 806e9 CPU: family 06, model 8e, stepping 09 CPU: vendor Intel device 806e9 CPU: family 06, model 8e, stepping 09 Setting up local APIC...CPU: vendor Intel device 806e9 CPU: family 06, model 8e, stepping 09 Setting up local APIC...Setting up local APIC... apic_id: 0x02 done. apic_id: 0x03 done. Skip microcode update Skip microcode update CPU #2 initialized CPU #3 initialized apic_id: 0x01 done. Skip microcode update CPU #1 initialized bsp_do_flight_plan done after 229 msecs. CPU: frequency set to 3400 MHz Enabling SMIs. Locking SMM. VMX : param.enable = 1 VMX status: enabled, unlocked SGX: pre-conditions not met VMX status: enabled, unlocked SGX: pre-conditions not met VMX status: enabled, unlocked VMX status: enabled, unlocked SGX: pre-conditions not met SGX: pre-conditions not met CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'vbt.bin' CBFS: Found @ offset 103a00 size 48e Found a VBT of 4608 bytes after decompression psys_pmax = 360 FMAP: area GBB found @ c11000 (978944 bytes) ITSS IRQ Polarities Before: IPC0: 0x00ff4000 IPC1: 0x00000007 IPC2: 0x00000000 IPC3: 0x00000000 ITSS IRQ Polarities After: IPC0: 0x00ff4000 IPC1: 0x00000007 IPC2: 0x00000000 IPC3: 0x00000000 Override DT after FSP-S, PCH is KBL/SKL PCH-LP SKU BS: BS_DEV_INIT_CHIPS times (us): entry 376229 run 171312 exit 0 Enumerating buses... Show all devs... Before device enumeration. Root Device: enabled 1 CPU_CLUSTER: 0: enabled 1 DOMAIN: 0000: enabled 1 APIC: 00: enabled 1 PCI: 00:00.0: enabled 1 PCI: 00:02.0: enabled 1 PCI: 00:14.0: enabled 1 PCI: 00:14.1: enabled 0 PCI: 00:14.2: enabled 1 PCI: 00:15.0: enabled 1 PCI: 00:15.1: enabled 1 PCI: 00:15.2: enabled 0 PCI: 00:15.3: enabled 0 PCI: 00:16.0: enabled 1 PCI: 00:16.1: enabled 0 PCI: 00:16.2: enabled 0 PCI: 00:16.3: enabled 0 PCI: 00:16.4: enabled 0 PCI: 00:17.0: enabled 0 PCI: 00:19.0: enabled 1 PCI: 00:19.1: enabled 1 PCI: 00:19.2: enabled 0 PCI: 00:1c.0: enabled 1 PCI: 00:1c.1: enabled 0 PCI: 00:1c.2: enabled 0 PCI: 00:1c.3: enabled 0 PCI: 00:1c.4: enabled 0 PCI: 00:1c.5: enabled 0 PCI: 00:1c.6: enabled 0 PCI: 00:1c.7: enabled 0 PCI: 00:1d.0: enabled 0 PCI: 00:1d.1: enabled 0 PCI: 00:1d.2: enabled 0 PCI: 00:1d.3: enabled 0 PCI: 00:1e.0: enabled 1 PCI: 00:1e.1: enabled 0 PCI: 00:1e.2: enabled 1 PCI: 00:1e.3: enabled 0 PCI: 00:1e.4: enabled 1 PCI: 00:1e.5: enabled 0 PCI: 00:1e.6: enabled 1 PCI: 00:1f.0: enabled 1 PCI: 00:1f.1: enabled 1 PCI: 00:1f.2: enabled 1 PCI: 00:1f.3: enabled 1 PCI: 00:1f.4: enabled 1 PCI: 00:1f.5: enabled 1 PCI: 00:1f.6: enabled 0 USB0 port 0: enabled 1 I2C: 00:5c: enabled 1 I2C: 00:15: enabled 1 I2C: 00:39: enabled 1 I2C: 00:3a: enabled 1 I2C: 00:1a: enabled 1 PCI: 00:00.0: enabled 1 SPI: 00: enabled 1 PNP: 0c09.0: enabled 1 USB2 port 0: enabled 1 USB2 port 1: enabled 1 USB2 port 2: enabled 1 USB2 port 4: enabled 1 USB2 port 8: enabled 1 APIC: 01: enabled 1 APIC: 02: enabled 1 APIC: 03: enabled 1 Compare with tree... Root Device: enabled 1 CPU_CLUSTER: 0: enabled 1 APIC: 00: enabled 1 APIC: 01: enabled 1 APIC: 02: enabled 1 APIC: 03: enabled 1 DOMAIN: 0000: enabled 1 PCI: 00:00.0: enabled 1 PCI: 00:02.0: enabled 1 PCI: 00:14.0: enabled 1 USB0 port 0: enabled 1 USB2 port 0: enabled 1 USB2 port 1: enabled 1 USB2 port 2: enabled 1 USB2 port 4: enabled 1 USB2 port 8: enabled 1 PCI: 00:14.1: enabled 0 PCI: 00:14.2: enabled 1 PCI: 00:15.0: enabled 1 I2C: 00:5c: enabled 1 PCI: 00:15.1: enabled 1 I2C: 00:15: enabled 1 PCI: 00:15.2: enabled 0 PCI: 00:15.3: enabled 0 PCI: 00:16.0: enabled 1 PCI: 00:16.1: enabled 0 PCI: 00:16.2: enabled 0 PCI: 00:16.3: enabled 0 PCI: 00:16.4: enabled 0 PCI: 00:17.0: enabled 0 PCI: 00:19.0: enabled 1 PCI: 00:19.1: enabled 1 I2C: 00:39: enabled 1 I2C: 00:3a: enabled 1 I2C: 00:1a: enabled 1 PCI: 00:19.2: enabled 0 PCI: 00:1c.0: enabled 1 PCI: 00:00.0: enabled 1 PCI: 00:1c.1: enabled 0 PCI: 00:1c.2: enabled 0 PCI: 00:1c.3: enabled 0 PCI: 00:1c.4: enabled 0 PCI: 00:1c.5: enabled 0 PCI: 00:1c.6: enabled 0 PCI: 00:1c.7: enabled 0 PCI: 00:1d.0: enabled 0 PCI: 00:1d.1: enabled 0 PCI: 00:1d.2: enabled 0 PCI: 00:1d.3: enabled 0 PCI: 00:1e.0: enabled 1 PCI: 00:1e.1: enabled 0 PCI: 00:1e.2: enabled 1 SPI: 00: enabled 1 PCI: 00:1e.3: enabled 0 PCI: 00:1e.4: enabled 1 PCI: 00:1e.5: enabled 0 PCI: 00:1e.6: enabled 1 PCI: 00:1f.0: enabled 1 PNP: 0c09.0: enabled 1 PCI: 00:1f.1: enabled 1 PCI: 00:1f.2: enabled 1 PCI: 00:1f.3: enabled 1 PCI: 00:1f.4: enabled 1 PCI: 00:1f.5: enabled 1 PCI: 00:1f.6: enabled 0 Root Device scanning... root_dev_scan_bus for Root Device CPU_CLUSTER: 0 enabled DOMAIN: 0000 enabled DOMAIN: 0000 scanning... PCI: pci_scan_bus for bus 00 PCI: 00:00.0 [8086/0000] ops PCI: 00:00.0 [8086/590c] enabled PCI: 00:02.0 [8086/0000] ops PCI: 00:02.0 [8086/591c] enabled PCI: 00:04.0 [8086/1903] enabled PCI: 00:08.0 [8086/1911] enabled PCI: 00:14.0 [8086/0000] bus ops PCI: 00:14.0 [8086/9d2f] enabled PCI: 00:14.2 [8086/9d31] enabled PCI: 00:15.0 [8086/0000] bus ops PCI: 00:15.0 [8086/9d60] enabled PCI: 00:15.1 [8086/0000] bus ops PCI: 00:15.1 [8086/9d61] enabled PCI: 00:16.0 [8086/0000] ops PCI: 00:16.0 [8086/9d3a] enabled PCI: 00:19.0 [8086/0000] ops PCI: 00:19.0 [8086/9d66] enabled PCI: 00:19.1 [8086/0000] bus ops PCI: 00:19.1 [8086/9d65] enabled PCI: 00:1c.0 [8086/0000] bus ops PCI: 00:1c.0 [8086/9d10] enabled PCI: 00:1e.0 [8086/0000] ops PCI: 00:1e.0 [8086/9d27] enabled PCI: 00:1e.2 [8086/0000] bus ops PCI: 00:1e.2 [8086/9d29] enabled PCI: 00:1e.4 [8086/9d2b] enabled PCI: 00:1e.6 [8086/0000] ops PCI: 00:1e.6 [8086/9d2d] enabled PCI: 00:1f.0 [8086/0000] bus ops PCI: 00:1f.0 [8086/9d4b] enabled PCI: Static device PCI: 00:1f.1 not found, disabling it. PCI: 00:1f.2 [8086/0000] bus ops PCI: 00:1f.2 [8086/9d21] enabled PCI: 00:1f.3 [8086/0000] bus ops PCI: 00:1f.3 [8086/9d71] enabled PCI: 00:1f.4 [8086/0000] bus ops PCI: 00:1f.4 [8086/9d23] enabled PCI: 00:1f.5 [8086/0000] bus ops PCI: 00:1f.5 [8086/9d24] enabled PCI: 00:14.0 scanning... scan_usb_bus for PCI: 00:14.0 USB0 port 0 enabled USB0 port 0 scanning... scan_usb_bus for USB0 port 0 USB2 port 0 enabled USB2 port 1 enabled USB2 port 2 enabled USB2 port 4 enabled USB2 port 8 enabled USB2 port 0 scanning... scan_usb_bus for USB2 port 0 scan_usb_bus for USB2 port 0 done scan_bus: scanning of bus USB2 port 0 took 8972 usecs USB2 port 1 scanning... scan_usb_bus for USB2 port 1 scan_usb_bus for USB2 port 1 done scan_bus: scanning of bus USB2 port 1 took 8973 usecs USB2 port 2 scanning... scan_usb_bus for USB2 port 2 scan_usb_bus for USB2 port 2 done scan_bus: scanning of bus USB2 port 2 took 8974 usecs USB2 port 4 scanning... scan_usb_bus for USB2 port 4 scan_usb_bus for USB2 port 4 done scan_bus: scanning of bus USB2 port 4 took 8974 usecs USB2 port 8 scanning... scan_usb_bus for USB2 port 8 scan_usb_bus for USB2 port 8 done scan_bus: scanning of bus USB2 port 8 took 8975 usecs scan_usb_bus for USB0 port 0 done scan_bus: scanning of bus USB0 port 0 took 90982 usecs scan_usb_bus for PCI: 00:14.0 done scan_bus: scanning of bus PCI: 00:14.0 took 107776 usecs PCI: 00:15.0 scanning... scan_generic_bus for PCI: 00:15.0 bus: PCI: 00:15.0[0]->I2C: 01:5c enabled scan_generic_bus for PCI: 00:15.0 done scan_bus: scanning of bus PCI: 00:15.0 took 14162 usecs PCI: 00:15.1 scanning... scan_generic_bus for PCI: 00:15.1 bus: PCI: 00:15.1[0]->I2C: 02:15 enabled scan_generic_bus for PCI: 00:15.1 done scan_bus: scanning of bus PCI: 00:15.1 took 14159 usecs PCI: 00:19.1 scanning... scan_generic_bus for PCI: 00:19.1 bus: PCI: 00:19.1[0]->I2C: 03:39 enabled bus: PCI: 00:19.1[0]->I2C: 03:3a enabled bus: PCI: 00:19.1[0]->I2C: 03:1a enabled scan_generic_bus for PCI: 00:19.1 done scan_bus: scanning of bus PCI: 00:19.1 took 22370 usecs PCI: 00:1c.0 scanning... do_pci_scan_bridge for PCI: 00:1c.0 PCI: pci_scan_bus for bus 01 PCI: 01:00.0 [8086/095a] enabled Capability: type 0x01 @ 0xc8 Capability: type 0x05 @ 0xd0 Capability: type 0x10 @ 0x40 Capability: type 0x10 @ 0x40 Enabling Common Clock Configuration L1 Sub-State supported from root port 28 L1 Sub-State Support = 0xf CommonModeRestoreTime = 0x28 Power On Value = 0x1e, Power On Scale = 0x0 ASPM: Enabled L1 Capability: type 0x01 @ 0xc8 Capability: type 0x05 @ 0xd0 Capability: type 0x10 @ 0x40 scan_bus: scanning of bus PCI: 00:1c.0 took 53534 usecs PCI: 00:1e.2 scanning... scan_generic_bus for PCI: 00:1e.2 bus: PCI: 00:1e.2[0]->SPI: 00 enabled scan_generic_bus for PCI: 00:1e.2 done scan_bus: scanning of bus PCI: 00:1e.2 took 13861 usecs PCI: 00:1f.0 scanning... scan_lpc_bus for PCI: 00:1f.0 PNP: 0c09.0 enabled scan_lpc_bus for PCI: 00:1f.0 done scan_bus: scanning of bus PCI: 00:1f.0 took 11321 usecs PCI: 00:1f.2 scanning... scan_lpc_bus for PCI: 00:1f.2 scan_lpc_bus for PCI: 00:1f.2 done scan_bus: scanning of bus PCI: 00:1f.2 took 9265 usecs PCI: 00:1f.3 scanning... scan_bus: scanning of bus PCI: 00:1f.3 took 2717 usecs PCI: 00:1f.4 scanning... scan_generic_bus for PCI: 00:1f.4 scan_generic_bus for PCI: 00:1f.4 done scan_bus: scanning of bus PCI: 00:1f.4 took 10045 usecs PCI: 00:1f.5 scanning... scan_generic_bus for PCI: 00:1f.5 scan_generic_bus for PCI: 00:1f.5 done scan_bus: scanning of bus PCI: 00:1f.5 took 10047 usecs scan_bus: scanning of bus DOMAIN: 0000 took 466116 usecs root_dev_scan_bus for Root Device done scan_bus: scanning of bus Root Device took 486232 usecs done Chrome EC: UHEPI supported FMAP: area RECOVERY_MRC_CACHE found @ 9d0000 (65536 bytes) MRC: Checking cached data update for 'RECOVERY_MRC_CACHE'. SF: Detected FAST_SPI Hardware Sequencer with sector size 0x1000, total 0x1000000 FMAP: area UNIFIED_MRC_CACHE found @ 9d0000 (131072 bytes) SPI flash protection: WPSW=0 SRP0=0 MRC: NOT enabling PRR for 'UNIFIED_MRC_CACHE'. BS: BS_DEV_ENUMERATE times (us): entry 0 run 826079 exit 39254 found VGA at PCI: 00:02.0 Setting up VGA for PCI: 00:02.0 Setting PCI_BRIDGE_CTL_VGA for bridge DOMAIN: 0000 Setting PCI_BRIDGE_CTL_VGA for bridge Root Device Allocating resources... Reading resources... Root Device read_resources bus 0 link: 0 CPU_CLUSTER: 0 read_resources bus 0 link: 0 CPU_CLUSTER: 0 read_resources bus 0 link: 0 done DOMAIN: 0000 read_resources bus 0 link: 0 PCI: 00:14.0 read_resources bus 0 link: 0 USB0 port 0 read_resources bus 0 link: 0 USB0 port 0 read_resources bus 0 link: 0 done PCI: 00:14.0 read_resources bus 0 link: 0 done PCI: 00:15.0 read_resources bus 1 link: 0 PCI: 00:15.0 read_resources bus 1 link: 0 done PCI: 00:15.1 read_resources bus 2 link: 0 PCI: 00:15.1 read_resources bus 2 link: 0 done PCI: 00:19.1 read_resources bus 3 link: 0 PCI: 00:19.1 read_resources bus 3 link: 0 done PCI: 00:1c.0 read_resources bus 1 link: 0 PCI: 00:1c.0 read_resources bus 1 link: 0 done PCI: 00:1e.2 read_resources bus 4 link: 0 PCI: 00:1e.2 read_resources bus 4 link: 0 done PCI: 00:1f.0 read_resources bus 0 link: 0 PCI: 00:1f.0 read_resources bus 0 link: 0 done DOMAIN: 0000 read_resources bus 0 link: 0 done Root Device read_resources bus 0 link: 0 done Done reading resources. Show resources in subtree (Root Device)...After reading. Root Device child on link 0 CPU_CLUSTER: 0 CPU_CLUSTER: 0 child on link 0 APIC: 00 APIC: 00 APIC: 01 APIC: 02 APIC: 03 DOMAIN: 0000 child on link 0 PCI: 00:00.0 DOMAIN: 0000 resource base 0 size 0 align 0 gran 0 limit ffff flags 40040100 index 10000000 DOMAIN: 0000 resource base 0 size 0 align 0 gran 0 limit ffffffff flags 40040200 index 10000100 PCI: 00:00.0 PCI: 00:00.0 resource base e0000000 size 4000000 align 0 gran 0 limit 0 flags f0000200 index 0 PCI: 00:00.0 resource base fed10000 size 8000 align 0 gran 0 limit 0 flags f0000200 index 1 PCI: 00:00.0 resource base fed18000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 2 PCI: 00:00.0 resource base fed19000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 3 PCI: 00:00.0 resource base fed84000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 4 PCI: 00:00.0 resource base fed80000 size 4000 align 0 gran 0 limit 0 flags f0000200 index 5 PCI: 00:00.0 resource base fed90000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 6 PCI: 00:00.0 resource base fed91000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 7 PCI: 00:00.0 resource base 0 size a0000 align 0 gran 0 limit 0 flags e0004200 index 8 PCI: 00:00.0 resource base c0000 size 7af40000 align 0 gran 0 limit 0 flags e0004200 index 9 PCI: 00:00.0 resource base 7b000000 size 800000 align 0 gran 0 limit 0 flags f0004200 index b PCI: 00:00.0 resource base 7b800000 size 4800000 align 0 gran 0 limit 0 flags f0000200 index c PCI: 00:00.0 resource base 100000000 size 7f000000 align 0 gran 0 limit 0 flags e0004200 index d PCI: 00:00.0 resource base a0000 size 20000 align 0 gran 0 limit 0 flags f0000200 index e PCI: 00:00.0 resource base c0000 size 40000 align 0 gran 0 limit 0 flags f0004200 index f PCI: 00:02.0 PCI: 00:02.0 resource base 0 size 1000000 align 24 gran 24 limit ffffffffffffffff flags 201 index 10 PCI: 00:02.0 resource base 0 size 10000000 align 28 gran 28 limit ffffffffffffffff flags 1201 index 18 PCI: 00:02.0 resource base 0 size 40 align 6 gran 6 limit ffff flags 100 index 20 PCI: 00:04.0 PCI: 00:04.0 resource base 0 size 8000 align 15 gran 15 limit ffffffffffffffff flags 201 index 10 PCI: 00:08.0 PCI: 00:08.0 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 PCI: 00:14.0 child on link 0 USB0 port 0 PCI: 00:14.0 resource base 0 size 10000 align 16 gran 16 limit ffffffffffffffff flags 201 index 10 USB0 port 0 child on link 0 USB2 port 0 USB2 port 0 USB2 port 1 USB2 port 2 USB2 port 4 USB2 port 8 PCI: 00:14.1 PCI: 00:14.2 PCI: 00:14.2 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 PCI: 00:15.0 child on link 0 I2C: 01:5c PCI: 00:15.0 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 I2C: 01:5c PCI: 00:15.1 child on link 0 I2C: 02:15 PCI: 00:15.1 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 I2C: 02:15 PCI: 00:15.2 PCI: 00:15.3 PCI: 00:16.0 PCI: 00:16.0 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 PCI: 00:16.1 PCI: 00:16.2 PCI: 00:16.3 PCI: 00:16.4 PCI: 00:17.0 PCI: 00:19.0 PCI: 00:19.0 resource base fe034000 size 1000 align 12 gran 12 limit ffffffffffffffff flags c0000200 index 10 PCI: 00:19.0 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 18 PCI: 00:19.1 child on link 0 I2C: 03:39 PCI: 00:19.1 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 I2C: 03:39 I2C: 03:3a I2C: 03:1a PCI: 00:19.2 PCI: 00:1c.0 child on link 0 PCI: 01:00.0 PCI: 00:1c.0 resource base 0 size 0 align 12 gran 12 limit ffff flags 80102 index 1c PCI: 00:1c.0 resource base 0 size 0 align 20 gran 20 limit ffffffffffffffff flags 81202 index 24 PCI: 00:1c.0 resource base 0 size 0 align 20 gran 20 limit ffffffff flags 80202 index 20 PCI: 01:00.0 PCI: 01:00.0 resource base 0 size 2000 align 13 gran 13 limit ffffffffffffffff flags 201 index 10 PCI: 00:1c.1 PCI: 00:1c.2 PCI: 00:1c.3 PCI: 00:1c.4 PCI: 00:1c.5 PCI: 00:1c.6 PCI: 00:1c.7 PCI: 00:1d.0 PCI: 00:1d.1 PCI: 00:1d.2 PCI: 00:1d.3 PCI: 00:1e.0 PCI: 00:1e.0 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 PCI: 00:1e.1 PCI: 00:1e.2 child on link 0 SPI: 00 PCI: 00:1e.2 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 SPI: 00 PCI: 00:1e.3 PCI: 00:1e.4 PCI: 00:1e.4 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 PCI: 00:1e.5 PCI: 00:1e.6 PCI: 00:1e.6 resource base 0 size 1000 align 12 gran 12 limit ffffffffffffffff flags 201 index 10 PCI: 00:1f.0 child on link 0 PNP: 0c09.0 PCI: 00:1f.0 resource base 0 size 1000 align 0 gran 0 limit 0 flags c0000100 index 0 PNP: 0c09.0 PNP: 0c09.0 resource base 800 size 1ff align 0 gran 0 limit 0 flags c0000100 index 0 PCI: 00:1f.1 PCI: 00:1f.2 PCI: 00:1f.2 resource base 0 size 4000 align 14 gran 14 limit ffffffff flags 200 index 10 PCI: 00:1f.2 resource base fe000000 size 10000 align 0 gran 0 limit 0 flags d0000200 index 48 PCI: 00:1f.2 resource base 1800 size 100 align 0 gran 0 limit 0 flags c0000100 index 40 PCI: 00:1f.3 PCI: 00:1f.3 resource base 0 size 4000 align 14 gran 14 limit ffffffffffffffff flags 201 index 10 PCI: 00:1f.3 resource base 0 size 10000 align 16 gran 16 limit ffffffffffffffff flags 201 index 20 PCI: 00:1f.4 PCI: 00:1f.4 resource base efa0 size 20 align 0 gran 0 limit efbf flags f0000100 index 20 PCI: 00:1f.4 resource base 0 size 100 align 12 gran 8 limit ffffffffffffffff flags 201 index 10 PCI: 00:1f.5 PCI: 00:1f.5 resource base 0 size 1000 align 12 gran 12 limit ffffffff flags 200 index 10 PCI: 00:1f.6 DOMAIN: 0000 io: base: 0 size: 0 align: 0 gran: 0 limit: ffff PCI: 00:1c.0 io: base: 0 size: 0 align: 12 gran: 12 limit: ffff PCI: 00:1c.0 io: base: 0 size: 0 align: 12 gran: 12 limit: ffff done PCI: 00:02.0 20 * [0x0 - 0x3f] io DOMAIN: 0000 io: base: 40 size: 40 align: 6 gran: 0 limit: ffff done DOMAIN: 0000 mem: base: 0 size: 0 align: 0 gran: 0 limit: ffffffff PCI: 00:1c.0 prefmem: base: 0 size: 0 align: 20 gran: 20 limit: ffffffffffffffff PCI: 00:1c.0 prefmem: base: 0 size: 0 align: 20 gran: 20 limit: ffffffffffffffff done PCI: 00:1c.0 mem: base: 0 size: 0 align: 20 gran: 20 limit: ffffffff PCI: 01:00.0 10 * [0x0 - 0x1fff] mem PCI: 00:1c.0 mem: base: 2000 size: 100000 align: 20 gran: 20 limit: ffffffff done PCI: 00:02.0 18 * [0x0 - 0xfffffff] prefmem PCI: 00:02.0 10 * [0x10000000 - 0x10ffffff] mem PCI: 00:1c.0 20 * [0x11000000 - 0x110fffff] mem PCI: 00:14.0 10 * [0x11100000 - 0x1110ffff] mem PCI: 00:1f.3 20 * [0x11110000 - 0x1111ffff] mem PCI: 00:04.0 10 * [0x11120000 - 0x11127fff] mem PCI: 00:1f.2 10 * [0x11128000 - 0x1112bfff] mem PCI: 00:1f.3 10 * [0x1112c000 - 0x1112ffff] mem PCI: 00:08.0 10 * [0x11130000 - 0x11130fff] mem PCI: 00:14.2 10 * [0x11131000 - 0x11131fff] mem PCI: 00:15.0 10 * [0x11132000 - 0x11132fff] mem PCI: 00:15.1 10 * [0x11133000 - 0x11133fff] mem PCI: 00:16.0 10 * [0x11134000 - 0x11134fff] mem PCI: 00:19.0 18 * [0x11135000 - 0x11135fff] mem PCI: 00:19.1 10 * [0x11136000 - 0x11136fff] mem PCI: 00:1e.0 10 * [0x11137000 - 0x11137fff] mem PCI: 00:1e.2 10 * [0x11138000 - 0x11138fff] mem PCI: 00:1e.4 10 * [0x11139000 - 0x11139fff] mem PCI: 00:1e.6 10 * [0x1113a000 - 0x1113afff] mem PCI: 00:1f.5 10 * [0x1113b000 - 0x1113bfff] mem PCI: 00:1f.4 10 * [0x1113c000 - 0x1113c0ff] mem DOMAIN: 0000 mem: base: 1113c100 size: 1113c100 align: 28 gran: 0 limit: ffffffff done avoid_fixed_resources: DOMAIN: 0000 avoid_fixed_resources:@DOMAIN: 0000 10000000 limit 0000ffff avoid_fixed_resources:@DOMAIN: 0000 10000100 limit ffffffff constrain_resources: PCI: 00:00.0 00 base e0000000 limit e3ffffff mem (fixed) constrain_resources: PCI: 00:00.0 08 base 00000000 limit 0009ffff mem (fixed) constrain_resources: PCI: 00:00.0 09 base 000c0000 limit 7affffff mem (fixed) constrain_resources: PCI: 00:00.0 0b base 7b000000 limit 7b7fffff mem (fixed) constrain_resources: PCI: 00:00.0 0c base 7b800000 limit 7fffffff mem (fixed) constrain_resources: PCI: 00:1f.0 00 base 00000000 limit 00000fff io (fixed) constrain_resources: PCI: 00:1f.2 40 base 00001800 limit 000018ff io (fixed) constrain_resources: PCI: 00:1f.4 20 base 0000efa0 limit 0000efbf io (fixed) avoid_fixed_resources:@DOMAIN: 0000 10000000 base 00001900 limit 0000ef9f avoid_fixed_resources:@DOMAIN: 0000 10000100 base c0000000 limit dfffffff Setting resources... DOMAIN: 0000 io: base:1900 size:40 align:6 gran:0 limit:ef9f PCI: 00:02.0 20 * [0x1c00 - 0x1c3f] io DOMAIN: 0000 io: next_base: 1c40 size: 40 align: 6 gran: 0 done PCI: 00:1c.0 io: base:ef9f size:0 align:12 gran:12 limit:ef9f PCI: 00:1c.0 io: next_base: ef9f size: 0 align: 12 gran: 12 done DOMAIN: 0000 mem: base:c0000000 size:1113c100 align:28 gran:0 limit:dfffffff PCI: 00:02.0 18 * [0xc0000000 - 0xcfffffff] prefmem PCI: 00:02.0 10 * [0xd0000000 - 0xd0ffffff] mem PCI: 00:1c.0 20 * [0xd1000000 - 0xd10fffff] mem PCI: 00:14.0 10 * [0xd1100000 - 0xd110ffff] mem PCI: 00:1f.3 20 * [0xd1110000 - 0xd111ffff] mem PCI: 00:04.0 10 * [0xd1120000 - 0xd1127fff] mem PCI: 00:1f.2 10 * [0xd1128000 - 0xd112bfff] mem PCI: 00:1f.3 10 * [0xd112c000 - 0xd112ffff] mem PCI: 00:08.0 10 * [0xd1130000 - 0xd1130fff] mem PCI: 00:14.2 10 * [0xd1131000 - 0xd1131fff] mem PCI: 00:15.0 10 * [0xd1132000 - 0xd1132fff] mem PCI: 00:15.1 10 * [0xd1133000 - 0xd1133fff] mem PCI: 00:16.0 10 * [0xd1134000 - 0xd1134fff] mem PCI: 00:19.0 18 * [0xd1135000 - 0xd1135fff] mem PCI: 00:19.1 10 * [0xd1136000 - 0xd1136fff] mem PCI: 00:1e.0 10 * [0xd1137000 - 0xd1137fff] mem PCI: 00:1e.2 10 * [0xd1138000 - 0xd1138fff] mem PCI: 00:1e.4 10 * [0xd1139000 - 0xd1139fff] mem PCI: 00:1e.6 10 * [0xd113a000 - 0xd113afff] mem PCI: 00:1f.5 10 * [0xd113b000 - 0xd113bfff] mem PCI: 00:1f.4 10 * [0xd113c000 - 0xd113c0ff] mem DOMAIN: 0000 mem: next_base: d113c100 size: 1113c100 align: 28 gran: 0 done PCI: 00:1c.0 prefmem: base:dfffffff size:0 align:20 gran:20 limit:dfffffff PCI: 00:1c.0 prefmem: next_base: dfffffff size: 0 align: 20 gran: 20 done PCI: 00:1c.0 mem: base:d1000000 size:100000 align:20 gran:20 limit:d10fffff PCI: 01:00.0 10 * [0xd1000000 - 0xd1001fff] mem PCI: 00:1c.0 mem: next_base: d1002000 size: 100000 align: 20 gran: 20 done Root Device assign_resources, bus 0 link: 0 DOMAIN: 0000 assign_resources, bus 0 link: 0 PCI: 00:02.0 10 <- [0x00d0000000 - 0x00d0ffffff] size 0x01000000 gran 0x18 mem64 PCI: 00:02.0 18 <- [0x00c0000000 - 0x00cfffffff] size 0x10000000 gran 0x1c prefmem64 PCI: 00:02.0 20 <- [0x0000001c00 - 0x0000001c3f] size 0x00000040 gran 0x06 io PCI: 00:04.0 10 <- [0x00d1120000 - 0x00d1127fff] size 0x00008000 gran 0x0f mem64 PCI: 00:08.0 10 <- [0x00d1130000 - 0x00d1130fff] size 0x00001000 gran 0x0c mem64 PCI: 00:14.0 10 <- [0x00d1100000 - 0x00d110ffff] size 0x00010000 gran 0x10 mem64 PCI: 00:14.0 assign_resources, bus 0 link: 0 PCI: 00:14.0 assign_resources, bus 0 link: 0 PCI: 00:14.2 10 <- [0x00d1131000 - 0x00d1131fff] size 0x00001000 gran 0x0c mem64 PCI: 00:15.0 10 <- [0x00d1132000 - 0x00d1132fff] size 0x00001000 gran 0x0c mem64 PCI: 00:15.0 assign_resources, bus 1 link: 0 PCI: 00:15.0 assign_resources, bus 1 link: 0 PCI: 00:15.1 10 <- [0x00d1133000 - 0x00d1133fff] size 0x00001000 gran 0x0c mem64 PCI: 00:15.1 assign_resources, bus 2 link: 0 PCI: 00:15.1 assign_resources, bus 2 link: 0 PCI: 00:16.0 10 <- [0x00d1134000 - 0x00d1134fff] size 0x00001000 gran 0x0c mem64 PCI: 00:19.0 18 <- [0x00d1135000 - 0x00d1135fff] size 0x00001000 gran 0x0c mem64 PCI: 00:19.1 10 <- [0x00d1136000 - 0x00d1136fff] size 0x00001000 gran 0x0c mem64 PCI: 00:19.1 assign_resources, bus 3 link: 0 PCI: 00:19.1 assign_resources, bus 3 link: 0 PCI: 00:1c.0 1c <- [0x000000ef9f - 0x000000ef9e] size 0x00000000 gran 0x0c bus 01 io PCI: 00:1c.0 24 <- [0x00dfffffff - 0x00dffffffe] size 0x00000000 gran 0x14 bus 01 prefmem PCI: 00:1c.0 20 <- [0x00d1000000 - 0x00d10fffff] size 0x00100000 gran 0x14 bus 01 mem PCI: 00:1c.0 assign_resources, bus 1 link: 0 PCI: 01:00.0 10 <- [0x00d1000000 - 0x00d1001fff] size 0x00002000 gran 0x0d mem64 PCI: 00:1c.0 assign_resources, bus 1 link: 0 PCI: 00:1e.0 10 <- [0x00d1137000 - 0x00d1137fff] size 0x00001000 gran 0x0c mem64 PCI: 00:1e.2 10 <- [0x00d1138000 - 0x00d1138fff] size 0x00001000 gran 0x0c mem64 PCI: 00:1e.2 assign_resources, bus 4 link: 0 PCI: 00:1e.2 assign_resources, bus 4 link: 0 PCI: 00:1e.4 10 <- [0x00d1139000 - 0x00d1139fff] size 0x00001000 gran 0x0c mem64 PCI: 00:1e.6 10 <- [0x00d113a000 - 0x00d113afff] size 0x00001000 gran 0x0c mem64 PCI: 00:1f.0 assign_resources, bus 0 link: 0 PCI: 00:1f.0 assign_resources, bus 0 link: 0 LPC: Trying to open IO window from 800 size 1ff PCI: 00:1f.2 10 <- [0x00d1128000 - 0x00d112bfff] size 0x00004000 gran 0x0e mem PCI: 00:1f.3 10 <- [0x00d112c000 - 0x00d112ffff] size 0x00004000 gran 0x0e mem64 PCI: 00:1f.3 20 <- [0x00d1110000 - 0x00d111ffff] size 0x00010000 gran 0x10 mem64 PCI: 00:1f.4 10 <- [0x00d113c000 - 0x00d113c0ff] size 0x00000100 gran 0x08 mem64 PCI: 00:1f.5 10 <- [0x00d113b000 - 0x00d113bfff] size 0x00001000 gran 0x0c mem DOMAIN: 0000 assign_resources, bus 0 link: 0 Root Device assign_resources, bus 0 link: 0 Done setting resources. Show resources in subtree (Root Device)...After assigning values. Root Device child on link 0 CPU_CLUSTER: 0 CPU_CLUSTER: 0 child on link 0 APIC: 00 APIC: 00 APIC: 01 APIC: 02 APIC: 03 DOMAIN: 0000 child on link 0 PCI: 00:00.0 DOMAIN: 0000 resource base 1900 size 40 align 6 gran 0 limit ef9f flags 40040100 index 10000000 DOMAIN: 0000 resource base c0000000 size 1113c100 align 28 gran 0 limit dfffffff flags 40040200 index 10000100 PCI: 00:00.0 PCI: 00:00.0 resource base e0000000 size 4000000 align 0 gran 0 limit 0 flags f0000200 index 0 PCI: 00:00.0 resource base fed10000 size 8000 align 0 gran 0 limit 0 flags f0000200 index 1 PCI: 00:00.0 resource base fed18000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 2 PCI: 00:00.0 resource base fed19000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 3 PCI: 00:00.0 resource base fed84000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 4 PCI: 00:00.0 resource base fed80000 size 4000 align 0 gran 0 limit 0 flags f0000200 index 5 PCI: 00:00.0 resource base fed90000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 6 PCI: 00:00.0 resource base fed91000 size 1000 align 0 gran 0 limit 0 flags f0000200 index 7 PCI: 00:00.0 resource base 0 size a0000 align 0 gran 0 limit 0 flags e0004200 index 8 PCI: 00:00.0 resource base c0000 size 7af40000 align 0 gran 0 limit 0 flags e0004200 index 9 PCI: 00:00.0 resource base 7b000000 size 800000 align 0 gran 0 limit 0 flags f0004200 index b PCI: 00:00.0 resource base 7b800000 size 4800000 align 0 gran 0 limit 0 flags f0000200 index c PCI: 00:00.0 resource base 100000000 size 7f000000 align 0 gran 0 limit 0 flags e0004200 index d PCI: 00:00.0 resource base a0000 size 20000 align 0 gran 0 limit 0 flags f0000200 index e PCI: 00:00.0 resource base c0000 size 40000 align 0 gran 0 limit 0 flags f0004200 index f PCI: 00:02.0 PCI: 00:02.0 resource base d0000000 size 1000000 align 24 gran 24 limit d0ffffff flags 60000201 index 10 PCI: 00:02.0 resource base c0000000 size 10000000 align 28 gran 28 limit cfffffff flags 60001201 index 18 PCI: 00:02.0 resource base 1c00 size 40 align 6 gran 6 limit 1c3f flags 60000100 index 20 PCI: 00:04.0 PCI: 00:04.0 resource base d1120000 size 8000 align 15 gran 15 limit d1127fff flags 60000201 index 10 PCI: 00:08.0 PCI: 00:08.0 resource base d1130000 size 1000 align 12 gran 12 limit d1130fff flags 60000201 index 10 PCI: 00:14.0 child on link 0 USB0 port 0 PCI: 00:14.0 resource base d1100000 size 10000 align 16 gran 16 limit d110ffff flags 60000201 index 10 USB0 port 0 child on link 0 USB2 port 0 USB2 port 0 USB2 port 1 USB2 port 2 USB2 port 4 USB2 port 8 PCI: 00:14.1 PCI: 00:14.2 PCI: 00:14.2 resource base d1131000 size 1000 align 12 gran 12 limit d1131fff flags 60000201 index 10 PCI: 00:15.0 child on link 0 I2C: 01:5c PCI: 00:15.0 resource base d1132000 size 1000 align 12 gran 12 limit d1132fff flags 60000201 index 10 I2C: 01:5c PCI: 00:15.1 child on link 0 I2C: 02:15 PCI: 00:15.1 resource base d1133000 size 1000 align 12 gran 12 limit d1133fff flags 60000201 index 10 I2C: 02:15 PCI: 00:15.2 PCI: 00:15.3 PCI: 00:16.0 PCI: 00:16.0 resource base d1134000 size 1000 align 12 gran 12 limit d1134fff flags 60000201 index 10 PCI: 00:16.1 PCI: 00:16.2 PCI: 00:16.3 PCI: 00:16.4 PCI: 00:17.0 PCI: 00:19.0 PCI: 00:19.0 resource base fe034000 size 1000 align 12 gran 12 limit ffffffffffffffff flags c0000200 index 10 PCI: 00:19.0 resource base d1135000 size 1000 align 12 gran 12 limit d1135fff flags 60000201 index 18 PCI: 00:19.1 child on link 0 I2C: 03:39 PCI: 00:19.1 resource base d1136000 size 1000 align 12 gran 12 limit d1136fff flags 60000201 index 10 I2C: 03:39 I2C: 03:3a I2C: 03:1a PCI: 00:19.2 PCI: 00:1c.0 child on link 0 PCI: 01:00.0 PCI: 00:1c.0 resource base ef9f size 0 align 12 gran 12 limit ef9f flags 60080102 index 1c PCI: 00:1c.0 resource base dfffffff size 0 align 20 gran 20 limit dfffffff flags 60081202 index 24 PCI: 00:1c.0 resource base d1000000 size 100000 align 20 gran 20 limit d10fffff flags 60080202 index 20 PCI: 01:00.0 PCI: 01:00.0 resource base d1000000 size 2000 align 13 gran 13 limit d1001fff flags 60000201 index 10 PCI: 00:1c.1 PCI: 00:1c.2 PCI: 00:1c.3 PCI: 00:1c.4 PCI: 00:1c.5 PCI: 00:1c.6 PCI: 00:1c.7 PCI: 00:1d.0 PCI: 00:1d.1 PCI: 00:1d.2 PCI: 00:1d.3 PCI: 00:1e.0 PCI: 00:1e.0 resource base d1137000 size 1000 align 12 gran 12 limit d1137fff flags 60000201 index 10 PCI: 00:1e.1 PCI: 00:1e.2 child on link 0 SPI: 00 PCI: 00:1e.2 resource base d1138000 size 1000 align 12 gran 12 limit d1138fff flags 60000201 index 10 SPI: 00 PCI: 00:1e.3 PCI: 00:1e.4 PCI: 00:1e.4 resource base d1139000 size 1000 align 12 gran 12 limit d1139fff flags 60000201 index 10 PCI: 00:1e.5 PCI: 00:1e.6 PCI: 00:1e.6 resource base d113a000 size 1000 align 12 gran 12 limit d113afff flags 60000201 index 10 PCI: 00:1f.0 child on link 0 PNP: 0c09.0 PCI: 00:1f.0 resource base 0 size 1000 align 0 gran 0 limit 0 flags c0000100 index 0 PNP: 0c09.0 PNP: 0c09.0 resource base 800 size 1ff align 0 gran 0 limit 0 flags c0000100 index 0 PCI: 00:1f.1 PCI: 00:1f.2 PCI: 00:1f.2 resource base d1128000 size 4000 align 14 gran 14 limit d112bfff flags 60000200 index 10 PCI: 00:1f.2 resource base fe000000 size 10000 align 0 gran 0 limit 0 flags d0000200 index 48 PCI: 00:1f.2 resource base 1800 size 100 align 0 gran 0 limit 0 flags c0000100 index 40 PCI: 00:1f.3 PCI: 00:1f.3 resource base d112c000 size 4000 align 14 gran 14 limit d112ffff flags 60000201 index 10 PCI: 00:1f.3 resource base d1110000 size 10000 align 16 gran 16 limit d111ffff flags 60000201 index 20 PCI: 00:1f.4 PCI: 00:1f.4 resource base efa0 size 20 align 0 gran 0 limit efbf flags f0000100 index 20 PCI: 00:1f.4 resource base d113c000 size 100 align 12 gran 8 limit d113c0ff flags 60000201 index 10 PCI: 00:1f.5 PCI: 00:1f.5 resource base d113b000 size 1000 align 12 gran 12 limit d113bfff flags 60000200 index 10 PCI: 00:1f.6 Done allocating resources. BS: BS_DEV_RESOURCES times (us): entry 0 run 2113811 exit 31 Enabling resources... PCI: 00:00.0 subsystem <- 8086/590c PCI: 00:00.0 cmd <- 06 PCI: 00:02.0 subsystem <- 8086/591c PCI: 00:02.0 cmd <- 03 PCI: 00:04.0 cmd <- 02 PCI: 00:08.0 cmd <- 06 PCI: 00:14.0 subsystem <- 8086/9d2f PCI: 00:14.0 cmd <- 02 PCI: 00:14.2 subsystem <- 8086/9d31 PCI: 00:14.2 cmd <- 02 PCI: 00:15.0 subsystem <- 8086/9d60 PCI: 00:15.0 cmd <- 06 PCI: 00:15.1 subsystem <- 8086/9d61 PCI: 00:15.1 cmd <- 06 PCI: 00:16.0 subsystem <- 8086/9d3a PCI: 00:16.0 cmd <- 02 PCI: 00:19.0 subsystem <- 8086/9d66 PCI: 00:19.0 cmd <- 06 PCI: 00:19.1 subsystem <- 8086/9d65 PCI: 00:19.1 cmd <- 06 PCI: 00:1c.0 bridge ctrl <- 0003 PCI: 00:1c.0 subsystem <- 8086/9d10 PCI: 00:1c.0 cmd <- 06 PCI: 00:1e.0 subsystem <- 8086/9d27 PCI: 00:1e.0 cmd <- 06 PCI: 00:1e.2 subsystem <- 8086/9d29 PCI: 00:1e.2 cmd <- 06 PCI: 00:1e.4 subsystem <- 8086/9d2b PCI: 00:1e.4 cmd <- 06 PCI: 00:1e.6 subsystem <- 8086/9d2d PCI: 00:1e.6 cmd <- 06 PCI: 00:1f.0 subsystem <- 8086/9d4b PCI: 00:1f.0 cmd <- 407 PCI: 00:1f.2 subsystem <- 8086/9d21 PCI: 00:1f.2 cmd <- 02 PCI: 00:1f.3 subsystem <- 8086/9d71 PCI: 00:1f.3 cmd <- 02 PCI: 00:1f.4 subsystem <- 8086/9d23 PCI: 00:1f.4 cmd <- 03 PCI: 00:1f.5 subsystem <- 8086/9d24 PCI: 00:1f.5 cmd <- 406 PCI: 01:00.0 subsystem <- 8086/095a PCI: 01:00.0 cmd <- 02 done. ME: Version : 11.8.50.3470 BS: BS_DEV_ENABLE times (us): entry 230 run 139258 exit 18391 Initializing devices... Root Device init ... Chrome EC: Set SMI mask to 0x0000000000000001 Chrome EC: Set S5 LAZY WAKE mask to 0x0000000000000006 Chrome EC: Set S3 LAZY WAKE mask to 0x0000000010001006 Chrome EC: Set S0iX LAZY WAKE mask to 0x0000000010001006 Chrome EC: Set WAKE mask to 0x0000000000000000 Root Device init finished in 31213 usecs CPU_CLUSTER: 0 init ... CPU_CLUSTER: 0 init finished in 2443 usecs PCI: 00:00.0 init ... CPU TDP: 5 Watts CPU PL2 = 18 Watts PCI: 00:00.0 init finished in 6982 usecs PCI: 00:02.0 init ... PCI: 00:02.0 init finished in 2249 usecs PCI: 00:04.0 init ... PCI: 00:04.0 init finished in 2249 usecs PCI: 00:08.0 init ... PCI: 00:08.0 init finished in 2248 usecs PCI: 00:14.0 init ... PCI: 00:14.0 init finished in 2249 usecs PCI: 00:14.2 init ... PCI: 00:14.2 init finished in 2249 usecs PCI: 00:15.0 init ... DW I2C bus 0 at 0xd1132000 (400 KHz) PCI: 00:15.0 init finished in 5967 usecs PCI: 00:15.1 init ... DW I2C bus 1 at 0xd1133000 (400 KHz) PCI: 00:15.1 init finished in 5968 usecs PCI: 00:16.0 init ... PCI: 00:16.0 init finished in 2248 usecs PCI: 00:19.1 init ... DW I2C bus 5 at 0xd1136000 (400 KHz) PCI: 00:19.1 init finished in 5965 usecs PCI: 00:1c.0 init ... Initializing PCH PCIe bridge. PCI: 00:1c.0 init finished in 5287 usecs PCI: 00:1e.4 init ... PCI: 00:1e.4 init finished in 2248 usecs PCI: 00:1f.0 init ... IOAPIC: Initializing IOAPIC at 0xfec00000 IOAPIC: Bootstrap Processor Local APIC = 0x00 IOAPIC: ID = 0x02 IOAPIC: Dumping registers reg 0x0000: 0x02000000 reg 0x0001: 0x00770020 reg 0x0002: 0x00000000 PCI: 00:1f.0 init finished in 23489 usecs PCI: 00:1f.2 init ... RTC Init Set power on after power failure. Disabling ACPI via APMC: done. Disabling Deep S3 Disabling Deep S3 Enabling Deep S4 Enabling Deep S4 Enabling Deep S5 Enabling Deep S5 PCI: 00:1f.2 init finished in 23807 usecs PCI: 00:1f.4 init ... PCI: 00:1f.4 init finished in 2259 usecs PCI: 01:00.0 init ... PCI: 01:00.0 init finished in 2390 usecs PNP: 0c09.0 init ... Google Chrome EC: Hello got back 11223344 status (0) Google Chrome EC: version: ro: rammus_v2.0.387-f0df0fe2e rw: rammus_v2.0.427-c38dc837e running image: 1 EC returned error result code 1 PNP: 0c09.0 init finished in 24459 usecs Devices initialized Show all devs... After init. Root Device: enabled 1 CPU_CLUSTER: 0: enabled 1 DOMAIN: 0000: enabled 1 APIC: 00: enabled 1 PCI: 00:00.0: enabled 1 PCI: 00:02.0: enabled 1 PCI: 00:14.0: enabled 1 PCI: 00:14.1: enabled 0 PCI: 00:14.2: enabled 1 PCI: 00:15.0: enabled 1 PCI: 00:15.1: enabled 1 PCI: 00:15.2: enabled 0 PCI: 00:15.3: enabled 0 PCI: 00:16.0: enabled 1 PCI: 00:16.1: enabled 0 PCI: 00:16.2: enabled 0 PCI: 00:16.3: enabled 0 PCI: 00:16.4: enabled 0 PCI: 00:17.0: enabled 0 PCI: 00:19.0: enabled 1 PCI: 00:19.1: enabled 1 PCI: 00:19.2: enabled 0 PCI: 00:1c.0: enabled 1 PCI: 00:1c.1: enabled 0 PCI: 00:1c.2: enabled 0 PCI: 00:1c.3: enabled 0 PCI: 00:1c.4: enabled 0 PCI: 00:1c.5: enabled 0 PCI: 00:1c.6: enabled 0 PCI: 00:1c.7: enabled 0 PCI: 00:1d.0: enabled 0 PCI: 00:1d.1: enabled 0 PCI: 00:1d.2: enabled 0 PCI: 00:1d.3: enabled 0 PCI: 00:1e.0: enabled 1 PCI: 00:1e.1: enabled 0 PCI: 00:1e.2: enabled 1 PCI: 00:1e.3: enabled 0 PCI: 00:1e.4: enabled 1 PCI: 00:1e.5: enabled 0 PCI: 00:1e.6: enabled 1 PCI: 00:1f.0: enabled 1 PCI: 00:1f.1: enabled 0 PCI: 00:1f.2: enabled 1 PCI: 00:1f.3: enabled 1 PCI: 00:1f.4: enabled 1 PCI: 00:1f.5: enabled 1 PCI: 00:1f.6: enabled 0 USB0 port 0: enabled 1 I2C: 01:5c: enabled 1 I2C: 02:15: enabled 1 I2C: 03:39: enabled 1 I2C: 03:3a: enabled 1 I2C: 03:1a: enabled 1 PCI: 01:00.0: enabled 1 SPI: 00: enabled 1 PNP: 0c09.0: enabled 1 USB2 port 0: enabled 1 USB2 port 1: enabled 1 USB2 port 2: enabled 1 USB2 port 4: enabled 1 USB2 port 8: enabled 1 APIC: 01: enabled 1 APIC: 02: enabled 1 APIC: 03: enabled 1 PCI: 00:04.0: enabled 1 PCI: 00:08.0: enabled 1 FMAP: area RW_ELOG found @ 9f0000 (16384 bytes) ELOG: NV offset 0x9f0000 size 0x4000 ELOG: area is 4096 bytes, full threshold 3842, shrink size 1024 ELOG: Event(17) added with size 13 at 2023-06-14 02:03:24 UTC POST: Unexpected post code in previous boot: 0x34 ELOG: Event(A3) added with size 11 at 2023-06-14 02:03:24 UTC ELOG: Event(92) added with size 9 at 2023-06-14 02:03:24 UTC ELOG: Event(9A) added with size 9 at 2023-06-14 02:03:24 UTC ELOG: Event(16) added with size 11 at 2023-06-14 02:03:24 UTC Erasing flash addr 9f0000 + 4 KiB ELOG: Event(AD) added with size 10 at 2023-06-14 02:03:24 UTC ELOG: Event(9F) added with size 14 at 2023-06-14 02:03:24 UTC BS: BS_DEV_INIT times (us): entry 0 run 417413 exit 126513 ELOG: Event(A1) added with size 10 at 2023-06-14 02:03:24 UTC elog_add_boot_reason: Logged recovery mode boot (Dev-switch on), reason: 0x1b ELOG: Event(A0) added with size 9 at 2023-06-14 02:03:24 UTC elog_add_boot_reason: Logged dev mode boot Finalize devices... Devices finalized FMAP: area RW_NVRAM found @ 9fa000 (24576 bytes) BS: BS_POST_DEVICE times (us): entry 25545 run 3951 exit 5182 BS: BS_OS_RESUME_CHECK times (us): entry 0 run 55 exit 0 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/dsdt.aml' CBFS: Found @ offset 19af40 size 4691 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/slic' CBFS: 'fallback/slic' not found. ACPI: Writing ACPI tables at 7aa9a000. ACPI: * FACS ACPI: * DSDT Ramoops buffer: 0x100000@0x7a999000. SGX: not enabled or not supported. skip gnvs fill ACPI: * FADT SCI is IRQ9 ACPI: added table 1/32, length now 40 ACPI: * SSDT Found 1 CPU(s) with 4 core(s) each. \_SB.PCI0.I2C0.H05C: SISC Touchscreen at I2C: 01:5c \_SB.PCI0.I2C1.D015: ELAN Touchpad at I2C: 02:15 \_SB.PCI0.I2C5.MAXR: Maxim MAX98927 Codec address 039h \_SB.PCI0.I2C5.MAXL: Maxim MAX98927 Codec address 03ah \_SB.PCI0.I2C5.DLG7: Dialog Semiconductor DA7219 Audio Codec address 01ah irq 105 Error: Could not locate 'wifi_sar' in VPD. Error: failed from getting SAR limits! \_SB.PCI0.RP01.WIFI: Intel WiFi PCI: 01:00.0 \_SB.PCI0.SPI0.S001: SPI Device at SPI: 00 \_SB.PCI0.XHCI.RHUB.HS01: USB Type C Port 1 at USB2 port 0 \_SB.PCI0.XHCI.RHUB.HS02: USB Type A Port 1 at USB2 port 1 \_SB.PCI0.XHCI.RHUB.HS03: Bluetooth at USB2 port 2 \_SB.PCI0.XHCI.RHUB.HS05: USB Type C Port 2 at USB2 port 4 \_SB.PCI0.XHCI.RHUB.HS09: Camera at USB2 port 8 ACPI: added table 2/32, length now 44 ACPI: * MCFG ACPI: added table 3/32, length now 48 ACPI: * TPM2 ACPI: added table 4/32, length now 52 ACPI: * MADT SCI is IRQ9 ACPI: added table 5/32, length now 56 current = 7aa9fa60 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'dmic-4ch-48khz-16b.bin' CBFS: Found @ offset 167000 size ba8 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'dmic-4ch-48khz-32b.bin' CBFS: Found @ offset 19f640 size ba8 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'dialog-2ch-48khz-24b.bin' CBFS: Found @ offset 167cc0 size 64 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'dialog-2ch-48khz-24b.bin' CBFS: Found @ offset 167cc0 size 64 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'max98927-render-2ch-48khz-24b.bin' CBFS: Found @ offset 167c00 size 64 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'max98927-render-2ch-48khz-16b.bin' CBFS: Found @ offset 103f00 size 64 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'max98927-render-2ch-48khz-16b.bin' CBFS: Found @ offset 103f00 size 64 ACPI: * NHLT ACPI: added table 6/32, length now 60 ACPI: * DMAR ACPI: added table 7/32, length now 64 ACPI: * IGD OpRegion GMA: Found VBT in CBFS GMA: Found valid VBT in CBFS current = 7aaa3610 ACPI: added table 8/32, length now 68 ACPI: * HPET ACPI: added table 9/32, length now 72 ACPI: done. ACPI tables: 38592 bytes. smbios_write_tables: 7a998000 Create SMBIOS type 17 PCI: 01:00.0 (Intel WiFi) SMBIOS tables: 662 bytes. Writing table forward entry at 0x00000500 Wrote coreboot table at: 00000500, 0x10 bytes, checksum a532 Writing coreboot table at 0x7aabe000 0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES 1. 0000000000001000-000000000009ffff: RAM 2. 00000000000a0000-00000000000fffff: RESERVED 3. 0000000000100000-000000007a997fff: RAM 4. 000000007a998000-000000007ab05fff: CONFIGURATION TABLES 5. 000000007ab06000-000000007abcffff: RAMSTAGE 6. 000000007abd0000-000000007affffff: CONFIGURATION TABLES 7. 000000007b000000-000000007fffffff: RESERVED 8. 00000000e0000000-00000000e3ffffff: RESERVED 9. 00000000fe000000-00000000fe00ffff: RESERVED 10. 00000000fed10000-00000000fed19fff: RESERVED 11. 00000000fed80000-00000000fed84fff: RESERVED 12. 00000000fed90000-00000000fed91fff: RESERVED 13. 0000000100000000-000000017effffff: RAM Graphics framebuffer located at 0xc0000000 Passing 6 GPIOs to payload: NAME | PORT | POLARITY | VALUE write protect | undefined | high | low recovery | undefined | high | low lid | undefined | high | high power | undefined | high | low oprom | undefined | high | low EC in RW | 0x00000036 | high | low Board ID: 6 CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) Wrote coreboot table at: 7aabe000, 0x5a4 bytes, checksum 7aac coreboot table: 1468 bytes. IMD ROOT 0. 7afff000 00001000 IMD SMALL 1. 7affe000 00001000 FSP MEMORY 2. 7abfe000 00400000 CONSOLE 3. 7abde000 00020000 TIME STAMP 4. 7abdd000 00000910 VBOOT 5. 7abdc000 00000c0c MRC DATA 6. 7abda000 00001878 ROMSTG STCK 7. 7abd9000 00000400 AFTER CAR 8. 7abd0000 00009000 RAMSTAGE 9. 7ab05000 000cb000 REFCODE 10. 7aad6000 0002f000 SMM BACKUP 11. 7aac6000 00010000 COREBOOT 12. 7aabe000 00008000 ACPI 13. 7aa9a000 00024000 ACPI GNVS 14. 7aa99000 00001000 RAMOOPS 15. 7a999000 00100000 SMBIOS 16. 7a998000 00000800 IMD small region: IMD ROOT 0. 7affec00 00000400 FSP RUNTIME 1. 7affebe0 00000004 VBOOT SEL 2. 7affebc0 00000008 EC HOSTEVENT 3. 7affeba0 00000008 POWER STATE 4. 7affeb60 00000040 ROMSTAGE 5. 7affeb40 00000004 MEM INFO 6. 7affe980 000001a9 VPD 7. 7affe920 00000047 COREBOOTFWD 8. 7affe8e0 00000028 MTRR: Physical address space: 0x0000000000000000 - 0x00000000000a0000 size 0x000a0000 type 6 0x00000000000a0000 - 0x00000000000c0000 size 0x00020000 type 0 0x00000000000c0000 - 0x000000007b800000 size 0x7b740000 type 6 0x000000007b800000 - 0x00000000c0000000 size 0x44800000 type 0 0x00000000c0000000 - 0x00000000d0000000 size 0x10000000 type 1 0x00000000d0000000 - 0x0000000100000000 size 0x30000000 type 0 0x0000000100000000 - 0x000000017f000000 size 0x7f000000 type 6 MTRR: Fixed MSR 0x250 0x0606060606060606 MTRR: Fixed MSR 0x258 0x0606060606060606 MTRR: Fixed MSR 0x259 0x0000000000000000 MTRR: Fixed MSR 0x268 0x0606060606060606 MTRR: Fixed MSR 0x269 0x0606060606060606 MTRR: Fixed MSR 0x26a 0x0606060606060606 MTRR: Fixed MSR 0x26b 0x0606060606060606 MTRR: Fixed MSR 0x26c 0x0606060606060606 MTRR: Fixed MSR 0x26d 0x0606060606060606 MTRR: Fixed MSR 0x26e 0x0606060606060606 MTRR: Fixed MSR 0x26f 0x0606060606060606 call enable_fixed_mtrr() CPU physical address size: 39 bits MTRR: default type WB/UC MTRR counts: 6/5. MTRR: UC selected as default type. MTRR: 0 base 0x0000000000000000 mask 0x0000007f80000000 type 6 MTRR: 1 base 0x000000007b800000 mask 0x0000007fff800000 type 0 MTRR: 2 base 0x000000007c000000 mask 0x0000007ffc000000 type 0 MTRR: 3 base 0x00000000c0000000 mask 0x0000007ff0000000 type 1 MTRR: 4 base 0x0000000100000000 mask 0x0000007f80000000 type 6 MTRR check Fixed MTRRs : Enabled Variable MTRRs: Enabled MTRR: Fixed MSR 0x250 0x0606060606060606 MTRR: Fixed MSR 0x258 0x0606060606060606 MTRR: Fixed MSR 0x259 0x0000000000000000 MTRR: Fixed MSR 0x268 0x0606060606060606 MTRR: Fixed MSR 0x269 0x0606060606060606 MTRR: Fixed MSR 0x26a 0x0606060606060606 MTRR: Fixed MSR 0x26b 0x0606060606060606 MTRR: Fixed MSR 0x26c 0x0606060606060606 MTRR: Fixed MSR 0x26d 0x0606060606060606 MTRR: Fixed MSR 0x26e 0x0606060606060606 MTRR: Fixed MSR 0x26f 0x0606060606060606 BS: BS_WRITE_TABLES times (us): entry 0 run 537486 exit 146847 call enable_fixed_mtrr() CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CPU physical address size: 39 bits CBFS: Locating 'fallback/payload' MTRR: Fixed MSR 0x250 0x0606060606060606 MTRR: Fixed MSR 0x258 0x0606060606060606 MTRR: Fixed MSR 0x259 0x0000000000000000 MTRR: Fixed MSR 0x268 0x0606060606060606 MTRR: Fixed MSR 0x269 0x0606060606060606 MTRR: Fixed MSR 0x26a 0x0606060606060606 MTRR: Fixed MSR 0x26b 0x0606060606060606 MTRR: Fixed MSR 0x26c 0x0606060606060606 MTRR: Fixed MSR 0x26d 0x0606060606060606 MTRR: Fixed MSR 0x26e 0x0606060606060606 MTRR: Fixed MSR 0x26f 0x0606060606060606 MTRR: Fixed MSR 0x250 0x0606060606060606 call enable_fixed_mtrr() MTRR: Fixed MSR 0x258 0x0606060606060606 MTRR: Fixed MSR 0x259 0x0000000000000000 MTRR: Fixed MSR 0x268 0x0606060606060606 MTRR: Fixed MSR 0x269 0x0606060606060606 MTRR: Fixed MSR 0x26a 0x0606060606060606 MTRR: Fixed MSR 0x26b 0x0606060606060606 MTRR: Fixed MSR 0x26c 0x0606060606060606 MTRR: Fixed MSR 0x26d 0x0606060606060606 MTRR: Fixed MSR 0x26e 0x0606060606060606 MTRR: Fixed MSR 0x26f 0x0606060606060606 CPU physical address size: 39 bits call enable_fixed_mtrr() CBFS: Found @ offset 223040 size 360b4 CPU physical address size: 39 bits Checking segment from ROM address 0xfff23078 Checking segment from ROM address 0xfff23094 Loading segment from ROM address 0xfff23078 code (compression=0) New segment dstaddr 0x30104020 memsize 0x64d8b0 srcaddr 0xfff230b0 filesize 0x3607c Loading Segment: addr: 0x30104020 memsz: 0x000000000064d8b0 filesz: 0x000000000003607c it's not compressed! [ 0x30104020, 3013a09c, 0x307518d0) <- fff230b0 Clearing Segment: addr: 0x000000003013a09c memsz: 0x0000000000617834 Loading segment from ROM address 0xfff23094 Entry Point 0x30104020 Loaded segments Finalizing chipset. ME: Host Firmware Status Register 1 : 0x90000245 ME: Host Firmware Status Register 2 : 0x6B000306 ME: Host Firmware Status Register 3 : 0x00000020 ME: Host Firmware Status Register 4 : 0x00084004 ME: Host Firmware Status Register 5 : 0x00000000 ME: Host Firmware Status Register 6 : 0x40000002 ME: FW Partition Table : OK ME: Bringup Loader Failure : NO ME: Firmware Init Complete : YES ME: Manufacturing Mode : NO ME: Boot Options Present : NO ME: Update In Progress : NO ME: D3 Support : NO ME: D0i3 Support : YES ME: Low Power State Enabled : YES ME: CPU Replaced : NO ME: CPU Replacement Valid : YES ME: Current Working State : Normal ME: Current Operation State : M0 with UMA ME: Current Operation Mode : Normal ME: Error Code : No Error ME: Progress Phase : Host Communication ME: Power Management Event : Power cycle reset through Moff ME: Progress Phase State : Host communication established ME: Power Down Mitigation : NO ME: FPF status : fused Clearing MCA. Finalizing SMM. BS: BS_PAYLOAD_LOAD times (us): entry 603 run 261922 exit 135677 mp_park_aps done after 0 msecs. Jumping to boot code at 30104020(7aabe000) CPU0: stack: 7ab46000 - 7ab47000, lowest used address 7ab46abc, stack used: 1348 bytes Starting depthcharge on rammus... WARNING: can't convert coreboot GPIOs, 'lid' won't be resampled at runtime! WARNING: can't convert coreboot GPIOs, 'power' won't be resampled at runtime! The GBB signature is at 0x30004020 and is: 24 47 42 42 [firmware-rammus-11275.B-collabora] Dec 11 2020 10:26:21 rammus: tftpboot 192.168.201.1 10716720/tftp-deploy-xg0f82i6/kernel/bzImage 10716720/tftp-deploy-xg0f82i6/kernel/cmdline 10716720/tftp-deploy-xg0f82i6/ramdisk/ramdisk.cpio.gz tftpboot 192.168.201.1 10716720/tftp-deploy-xg0f82i6/kernel/bzImploy-xg0f82i6/kernel/cmdline 10716720/tftp-deploy-xg0f82i6/ramdisk/ramdisk.cpio.gz Waiting for link R8152: Initializing Version 9 (ocp_data = 6010) R8152: Done initializing Adding net device done. MAC: 00:e0:4c:68:04:98 Sending DHCP discover... done. Waiting for reply... done. Sending DHCP request... done. Waiting for reply... done. My ip is 192.168.201.15 The DHCP server ip is 192.168.201.1 TFTP server IP predefined by user: 192.168.201.1 Bootfile predefined by user: 10716720/tftp-deploy-xg0f82i6/kernel/bzImage Sending tftp read request... done. Waiting for the transfer... 00000000 ################################################################ 00080000 ################################################################ 00100000 ################################################################ 00180000 ################################################################ 00200000 ################################################################ 00280000 ################################################################ 00300000 ################################################################ 00380000 ################################################################ 00400000 ################################################################ 00480000 ################################################################ 00500000 ################################################################ 00580000 ################################################################ 00600000 ################################################################ 00680000 ################################################################ 00700000 ################################################################ 00780000 ################################################################ 00800000 ################################################################ 00880000 ################################################################ 00900000 ################################################################ 00980000 ################################################################ 00a00000 ################################################################ 00a80000 ################################################################ 00b00000 ################################################################ 00b80000 ################################################################ 00c00000 ################################################################ 00c80000 ################################################################ 00d00000 ################################################################ 00d80000 ################################################################ 00e00000 ################################################################ 00e80000 ################################################################ 00f00000 ################################################################ 00f80000 ################## done. The bootfile was 16397280 bytes long. Sending tftp read request... done. Waiting for the transfer... 00000000 ################################################################ 00080000 ################################################################ 00100000 ################################################################ 00180000 ################################################################ 00200000 ################################################################ 00280000 ################################################################ 00300000 ################################################################ 00380000 ################################################################ 00400000 ################################################################ 00480000 ################################################################ 00500000 ################################################################ 00580000 ################################################################ 00600000 ################################################################ 00680000 ################################################################ 00700000 ################################################################ 00780000 ################################################################ 00800000 ################################################################ 00880000 ################################################################ 00900000 ################################################################ 00980000 ################################################################ 00a00000 #################### done. Sending tftp read request... done. Waiting for the transfer... 00000000 # done. Command line loaded dynamically from TFTP file: 10716720/tftp-deploy-xg0f82i6/kernel/cmdline The command line is: earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog earlycon console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=192.168.201.1:/var/lib/lava/dispatcher/tmp/10716720/extract-nfsrootfs-om7xp1jb,tcp,hard ip=dhcp tftpserverip=192.168.201.1 Shutting down all USB controllers. Removing current net device Finalizing coreboot Exiting depthcharge with code 4 at timestamp: 21599225 Starting kernel ... <5>[ 0.000000] Linux version 5.10.182-cip35 (KernelCI@build-j32995-x86-64-gcc-10-x86-64-defconfig-x86-chromebookdxwnc) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Wed Jun 14 01:54:33 UTC 2023 <6>[ 0.000000] Command line: earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog earlycon console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=192.168.201.1:/var/lib/lava/dispatcher/tmp/10716720/extract-nfsrootfs-om7xp1jb,tcp,hard ip=dhcp tftpserverip=192.168.201.1 <6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' <6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' <6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' <6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers' <6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR' <6>[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 <6>[ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64 <6>[ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64 <6>[ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format. <6>[ 0.000000] BIOS-provided physical RAM map: <6>[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000000fff] type 16 <6>[ 0.000000] BIOS-e820: [mem 0x0000000000001000-0x000000000009ffff] usable <6>[ 0.000000] BIOS-e820: [mem 0x00000000000a0000-0x00000000000fffff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007a997fff] usable <6>[ 0.000000] BIOS-e820: [mem 0x000000007a998000-0x000000007affffff] type 16 <6>[ 0.000000] BIOS-e820: [mem 0x000000007b000000-0x000000007fffffff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000e3ffffff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000fe00ffff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x00000000fed80000-0x00000000fed84fff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x00000000fed90000-0x00000000fed91fff] reserved <6>[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000017effffff] usable <6>[ 0.000000] NX (Execute Disable) protection: active <6>[ 0.000000] SMBIOS 2.7 present. <6>[ 0.000000] DMI: Google Rammus/Rammus, BIOS 09/04/2020 <6>[ 0.000000] tsc: Detected 1600.000 MHz processor <6>[ 0.000000] tsc: Detected 1599.960 MHz TSC <6>[ 0.000056] last_pfn = 0x17f000 max_arch_pfn = 0x400000000 <6>[ 0.001397] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT <6>[ 0.007149] last_pfn = 0x7a998 max_arch_pfn = 0x400000000 <6>[ 0.026135] check: Scanning 1 areas for low memory corruption <6>[ 0.026148] Using GB pages for direct mapping <6>[ 0.026992] RAMDISK: [mem 0x375d8000-0x37ffffff] <6>[ 0.026999] ACPI: Early table checksum verification disabled <6>[ 0.027007] ACPI: RSDP 0x00000000000F0000 000024 (v02 CORE ) <6>[ 0.027021] ACPI: XSDT 0x000000007AA9A0E0 00006C (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027037] ACPI: FACP 0x000000007AA9E970 0000F4 (v04 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027053] ACPI: DSDT 0x000000007AA9A280 0046E3 (v05 COREv4 COREBOOT 20110725 INTL 20180531) <6>[ 0.027066] ACPI: FACS 0x000000007AA9A240 000040 <6>[ 0.027077] ACPI: FACS 0x000000007AA9A240 000040 <6>[ 0.027089] ACPI: SSDT 0x000000007AA9EA70 000EFA (v02 CORE COREBOOT 0000002A CORE 0000002A) <6>[ 0.027102] ACPI: MCFG 0x000000007AA9F970 00003C (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027114] ACPI: TPM2 0x000000007AA9F9B0 000040 (v04 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027126] ACPI: APIC 0x000000007AA9F9F0 00006C (v02 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027138] ACPI: NHLT 0x000000007AA9FA60 001B1C (v05 GOOGLE RAMMUS 00000000 CORE 00000000) <6>[ 0.027150] ACPI: DMAR 0x000000007AAA1580 000088 (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027163] ACPI: DBG2 0x000000007AAA3610 000061 (v00 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027175] ACPI: HPET 0x000000007AAA3680 000038 (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.027187] ACPI: Reserving FACP table memory at [mem 0x7aa9e970-0x7aa9ea63] <6>[ 0.027192] ACPI: Reserving DSDT table memory at [mem 0x7aa9a280-0x7aa9e962] <6>[ 0.027197] ACPI: Reserving FACS table memory at [mem 0x7aa9a240-0x7aa9a27f] <6>[ 0.027202] ACPI: Reserving FACS table memory at [mem 0x7aa9a240-0x7aa9a27f] <6>[ 0.027206] ACPI: Reserving SSDT table memory at [mem 0x7aa9ea70-0x7aa9f969] <6>[ 0.027211] ACPI: Reserving MCFG table memory at [mem 0x7aa9f970-0x7aa9f9ab] <6>[ 0.027216] ACPI: Reserving TPM2 table memory at [mem 0x7aa9f9b0-0x7aa9f9ef] <6>[ 0.027220] ACPI: Reserving APIC table memory at [mem 0x7aa9f9f0-0x7aa9fa5b] <6>[ 0.027225] ACPI: Reserving NHLT table memory at [mem 0x7aa9fa60-0x7aaa157b] <6>[ 0.027230] ACPI: Reserving DMAR table memory at [mem 0x7aaa1580-0x7aaa1607] <6>[ 0.027234] ACPI: Reserving DBG2 table memory at [mem 0x7aaa3610-0x7aaa3670] <6>[ 0.027239] ACPI: Reserving HPET table memory at [mem 0x7aaa3680-0x7aaa36b7] <6>[ 0.027394] No NUMA configuration found <6>[ 0.027400] Faking a node at [mem 0x0000000000000000-0x000000017effffff] <6>[ 0.027409] NODE_DATA(0) allocated [mem 0x17effc000-0x17effffff] <6>[ 0.027454] Zone ranges: <6>[ 0.027459] DMA [mem 0x0000000000001000-0x0000000000ffffff] <6>[ 0.027467] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] <6>[ 0.027474] Normal [mem 0x0000000100000000-0x000000017effffff] <6>[ 0.027481] Movable zone start for each node <6>[ 0.027486] Early memory node ranges <6>[ 0.027491] node 0: [mem 0x0000000000001000-0x000000000009ffff] <6>[ 0.027496] node 0: [mem 0x0000000000100000-0x000000007a997fff] <6>[ 0.027501] node 0: [mem 0x0000000100000000-0x000000017effffff] <6>[ 0.027507] Initmem setup node 0 [mem 0x0000000000001000-0x000000017effffff] <6>[ 0.027543] On node 0, zone DMA: 1 pages in unavailable ranges <6>[ 0.027588] On node 0, zone DMA: 96 pages in unavailable ranges <6>[ 0.038791] On node 0, zone Normal: 22120 pages in unavailable ranges <6>[ 0.038867] On node 0, zone Normal: 4096 pages in unavailable ranges <6>[ 0.038893] Reserving Intel graphics memory at [mem 0x7c000000-0x7fffffff] <6>[ 0.039252] ACPI: PM-Timer IO Port: 0x1808 <6>[ 0.039308] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119 <6>[ 0.039322] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) <6>[ 0.039328] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) <6>[ 0.039343] Using ACPI (MADT) for SMP configuration information <6>[ 0.039349] ACPI: HPET id: 0x8086a701 base: 0xfed00000 <6>[ 0.039357] TSC deadline timer available <6>[ 0.039363] smpboot: Allowing 4 CPUs, 0 hotplug CPUs <6>[ 0.039392] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] <6>[ 0.039399] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000fffff] <6>[ 0.039405] PM: hibernation: Registered nosave memory: [mem 0x7a998000-0x7affffff] <6>[ 0.039409] PM: hibernation: Registered nosave memory: [mem 0x7b000000-0x7fffffff] <6>[ 0.039414] PM: hibernation: Registered nosave memory: [mem 0x80000000-0xdfffffff] <6>[ 0.039418] PM: hibernation: Registered nosave memory: [mem 0xe0000000-0xe3ffffff] <6>[ 0.039422] PM: hibernation: Registered nosave memory: [mem 0xe4000000-0xfdffffff] <6>[ 0.039427] PM: hibernation: Registered nosave memory: [mem 0xfe000000-0xfe00ffff] <6>[ 0.039431] PM: hibernation: Registered nosave memory: [mem 0xfe010000-0xfed0ffff] <6>[ 0.039435] PM: hibernation: Registered nosave memory: [mem 0xfed10000-0xfed19fff] <6>[ 0.039440] PM: hibernation: Registered nosave memory: [mem 0xfed1a000-0xfed7ffff] <6>[ 0.039444] PM: hibernation: Registered nosave memory: [mem 0xfed80000-0xfed84fff] <6>[ 0.039449] PM: hibernation: Registered nosave memory: [mem 0xfed85000-0xfed8ffff] <6>[ 0.039453] PM: hibernation: Registered nosave memory: [mem 0xfed90000-0xfed91fff] <6>[ 0.039457] PM: hibernation: Registered nosave memory: [mem 0xfed92000-0xffffffff] <6>[ 0.039466] [mem 0x80000000-0xdfffffff] available for PCI devices <6>[ 0.039474] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns <6>[ 0.056925] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:4 nr_node_ids:1 <6>[ 0.057236] percpu: Embedded 59 pages/cpu s200848 r8192 d32624 u524288 <6>[ 0.057318] Built 1 zonelists, mobility grouping on. Total pages: 1006266 <6>[ 0.057323] Policy zone: Normal <5>[ 0.057338] Kernel command line: earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog earlycon console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=192.168.201.1:/var/lib/lava/dispatcher/tmp/10716720/extract-nfsrootfs-om7xp1jb,tcp,hard ip=dhcp tftpserverip=192.168.201.1 <6>[ 0.057924] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) <6>[ 0.058183] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) <6>[ 0.058277] mem auto-init: stack:off, heap alloc:off, heap free:off <6>[ 0.080585] Memory: 3878200K/4089052K available (22546K kernel code, 3691K rwdata, 9380K rodata, 2148K init, 14096K bss, 210592K reserved, 0K cma-reserved) <6>[ 0.080737] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <6>[ 0.080798] Kernel/User page tables isolation: enabled <6>[ 0.080903] ftrace: allocating 60761 entries in 238 pages <6>[ 0.149120] ftrace: allocated 238 pages with 6 groups <6>[ 0.149422] Running RCU self tests <6>[ 0.149438] rcu: Hierarchical RCU implementation. <6>[ 0.149443] rcu: RCU event tracing is enabled. <6>[ 0.149447] rcu: RCU lockdep checking is enabled. <6>[ 0.149452] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. <6>[ 0.149458] Rude variant of Tasks RCU enabled. <6>[ 0.149462] Tracing variant of Tasks RCU enabled. <6>[ 0.149467] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies. <6>[ 0.149472] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 <6>[ 0.159759] NR_IRQS: 4352, nr_irqs: 1024, preallocated irqs: 16 <5>[ 0.160251] random: crng init done <6>[ 0.160361] Console: colour dummy device 80x25 <6>[ 0.238934] printk: console [ttyS0] enabled <4>[ 0.239325] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar <4>[ 0.240009] ... MAX_LOCKDEP_SUBCLASSES: 8 <4>[ 0.240391] ... MAX_LOCK_DEPTH: 48 <4>[ 0.240781] ... MAX_LOCKDEP_KEYS: 8192 <4>[ 0.241186] ... CLASSHASH_SIZE: 4096 <4>[ 0.241590] ... MAX_LOCKDEP_ENTRIES: 32768 <4>[ 0.242000] ... MAX_LOCKDEP_CHAINS: 65536 <4>[ 0.242411] ... CHAINHASH_SIZE: 32768 <4>[ 0.242822] memory used by lock dependency info: 6365 kB <4>[ 0.243312] memory used for stack traces: 4224 kB <4>[ 0.243752] per task-struct memory footprint: 1920 bytes <6>[ 0.244300] ACPI: Core revision 20200925 <6>[ 0.244900] hpet: HPET dysfunctional in PC10. Force disabled. <6>[ 0.245423] APIC: Switch to symmetric I/O mode setup <6>[ 0.249925] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x170fff30cc4, max_idle_ns: 440795237869 ns <6>[ 0.250871] Calibrating delay loop (skipped), value calculated using timer frequency.. 3199.92 BogoMIPS (lpj=1599960) <6>[ 0.251799] pid_max: default: 32768 minimum: 301 <6>[ 0.251852] LSM: Security Framework initializing <6>[ 0.251852] SELinux: Initializing. <6>[ 0.251852] LSM support for eBPF active <6>[ 0.251852] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) <6>[ 0.251852] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) <6>[ 0.251852] mce: CPU0: Thermal monitoring enabled (TM1) <6>[ 0.251852] process: using mwait in idle threads <6>[ 0.251852] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 <6>[ 0.251852] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 <6>[ 0.251852] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization <6>[ 0.251852] Spectre V2 : Mitigation: IBRS <6>[ 0.251852] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch <6>[ 0.251852] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT <6>[ 0.251852] RETBleed: Mitigation: IBRS <6>[ 0.251852] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier <6>[ 0.251852] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl <6>[ 0.251852] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp <6>[ 0.251852] MDS: Vulnerable: Clear CPU buffers attempted, no microcode <6>[ 0.251852] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode <6>[ 0.251852] SRBDS: Vulnerable: No microcode <4>[ 0.251852] ------------[ cut here ]------------ <4>[ 0.251852] missing return thunk: lkdtm_rodata_do_nothing+0x0/0x10-lkdtm_rodata_do_nothing+0x5/0x10: e9 00 00 00 00 <4>[ 0.251852] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:712 apply_returns+0x1f5/0x220 <4>[ 0.251852] Modules linked in: <4>[ 0.251852] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.182-cip35 #1 <4>[ 0.251852] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 0.251852] RIP: 0010:apply_returns+0x1f5/0x220 <4>[ 0.251852] Code: 46 02 00 0f 85 e1 fe ff ff 49 89 e8 b9 05 00 00 00 4c 89 f2 48 89 ee 48 c7 c7 c8 61 ef 90 c6 05 6b ea 46 02 01 e8 82 e7 10 01 <0f> 0b e9 b9 fe ff ff 44 89 f9 c7 00 cc cc cc cc c7 44 08 fc cc cc <4>[ 0.251852] RSP: 0000:ffffffff91203de0 EFLAGS: 00010282 <4>[ 0.251852] RAX: 0000000000000000 RBX: ffffffff91e0b2f4 RCX: 0000000000000000 <4>[ 0.251852] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f177c91 <4>[ 0.251852] RBP: ffffffff90b7ece0 R08: 0000000000000001 R09: 0000000000000001 <4>[ 0.251852] R10: ffffffff9128fee0 R11: 3fffffffffffffff R12: ffffffff91e233fc <4>[ 0.251852] R13: cccccccccccccccc R14: ffffffff90b7ece5 R15: 0000000000000004 <4>[ 0.251852] FS: 0000000000000000(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 0.251852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 0.251852] CR2: ffff9e0423001000 CR3: 0000000121626001 CR4: 00000000003706f0 <4>[ 0.251852] Call Trace: <4>[ 0.251852] ? __warn+0x80/0x110 <4>[ 0.251852] ? apply_returns+0x1f5/0x220 <4>[ 0.251852] ? report_bug+0x9e/0xc0 <4>[ 0.251852] ? __warn_printk+0x6c/0x8d <4>[ 0.251852] ? handle_bug+0x41/0x90 <4>[ 0.251852] ? exc_invalid_op+0x14/0x70 <4>[ 0.251852] ? asm_exc_invalid_op+0x12/0x20 <4>[ 0.251852] ? console_unlock+0x4d1/0x5f0 <4>[ 0.251852] ? apply_returns+0x1f5/0x220 <4>[ 0.251852] alternative_instructions+0x7d/0x143 <4>[ 0.251852] check_bugs+0xe9f/0xefb <4>[ 0.251852] start_kernel+0x517/0x54d <4>[ 0.251852] secondary_startup_64_no_verify+0xc2/0xcb <4>[ 0.251852] irq event stamp: 198821 <4>[ 0.251852] hardirqs last enabled at (198829): [] console_unlock+0x4d1/0x5f0 <4>[ 0.251852] hardirqs last disabled at (198836): [] console_unlock+0x444/0x5f0 <4>[ 0.251852] softirqs last enabled at (1828): [] cgroup_idr_alloc.constprop.0+0x5b/0xe0 <4>[ 0.251852] softirqs last disabled at (1826): [] cgroup_idr_alloc.constprop.0+0x2e/0xe0 <4>[ 0.251852] ---[ end trace 19f7a216b67dc043 ]--- <6>[ 0.251852] Freeing SMP alternatives memory: 48K <6>[ 0.251852] smpboot: CPU0: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz (family: 0x6, model: 0x8e, stepping: 0x9) <6>[ 0.252975] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver. <6>[ 0.253870] ... version: 4 <6>[ 0.254249] ... bit width: 48 <6>[ 0.254632] ... generic registers: 4 <6>[ 0.254858] ... value mask: 0000ffffffffffff <6>[ 0.255345] ... max period: 00007fffffffffff <6>[ 0.255857] ... fixed-purpose events: 3 <6>[ 0.256236] ... event mask: 000000070000000f <6>[ 0.257448] rcu: Hierarchical SRCU implementation. <6>[ 0.260450] smp: Bringing up secondary CPUs ... <6>[ 0.261916] x86: Booting SMP configuration: <6>[ 0.262332] .... node #0, CPUs: #1 <4>[ 0.263271] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. <4>[ 0.264860] MMIO Stale Data CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html for more details. <4>[ 0.266500] #2 #3 <6>[ 0.269923] smp: Brought up 1 node, 4 CPUs <6>[ 0.270518] smpboot: Max logical packages: 1 <6>[ 0.270860] smpboot: Total of 4 processors activated (12799.68 BogoMIPS) <6>[ 0.273861] devtmpfs: initialized <6>[ 0.275108] x86/mm: Memory block size: 128MB <6>[ 0.280977] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns <6>[ 0.281875] futex hash table entries: 1024 (order: 5, 131072 bytes, linear) <6>[ 0.283266] pinctrl core: initialized pinctrl subsystem <6>[ 0.285282] PM: RTC time: 02:03:42, date: 2023-06-14 <6>[ 0.286559] NET: Registered protocol family 16 <6>[ 0.287944] audit: initializing netlink subsys (disabled) <5>[ 0.288479] audit: type=2000 audit(1686708221.037:1): state=initialized audit_enabled=0 res=1 <6>[ 0.289645] thermal_sys: Registered thermal governor 'step_wise' <6>[ 0.289861] thermal_sys: Registered thermal governor 'user_space' <6>[ 0.290509] cpuidle: using governor menu <6>[ 0.291313] ACPI: bus type PCI registered <6>[ 0.292301] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xe0000000-0xe3ffffff] (base 0xe0000000) <6>[ 0.292865] PCI: MMCONFIG at [mem 0xe0000000-0xe3ffffff] reserved in E820 <6>[ 0.293512] PCI: Using configuration type 1 for base access <6>[ 0.342246] Kprobes globally optimized <6>[ 0.343009] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages <6>[ 0.343871] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages <6>[ 0.344931] cryptomgr_test (39) used greatest stack depth: 15272 bytes left <6>[ 0.345089] cryptomgr_test (38) used greatest stack depth: 14880 bytes left <6>[ 0.349222] ACPI: Added _OSI(Module Device) <6>[ 0.349619] ACPI: Added _OSI(Processor Device) <6>[ 0.350867] ACPI: Added _OSI(3.0 _SCP Extensions) <6>[ 0.351304] ACPI: Added _OSI(Processor Aggregator Device) <6>[ 0.351861] ACPI: Added _OSI(Linux-Dell-Video) <6>[ 0.352278] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) <6>[ 0.352861] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) <6>[ 0.369932] ACPI: 2 ACPI AML tables successfully acquired and loaded <6>[ 0.381114] ACPI: EC: EC started <6>[ 0.381452] ACPI: EC: interrupt blocked <6>[ 0.382872] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 <6>[ 0.383342] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC used to handle transactions <6>[ 0.384860] ACPI: Interpreter enabled <6>[ 0.385287] ACPI: (supports S0 S3 S4 S5) <6>[ 0.385860] ACPI: Using IOAPIC for interrupt routing <6>[ 0.386402] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug <6>[ 0.410655] ACPI: Power Resource [PRIC] (on) <6>[ 0.544603] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) <6>[ 0.544870] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] <6>[ 0.546179] acpi PNP0A08:00: _OSC: OS now controls [PME PCIeCapability LTR] <6>[ 0.547938] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge <6>[ 0.549527] PCI host bridge to bus 0000:00 <6>[ 0.549864] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] <6>[ 0.550475] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] <6>[ 0.551862] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] <6>[ 0.552530] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000c3fff window] <6>[ 0.552859] pci_bus 0000:00: root bus resource [mem 0x000c4000-0x000c7fff window] <6>[ 0.553526] pci_bus 0000:00: root bus resource [mem 0x000c8000-0x000cbfff window] <6>[ 0.554860] pci_bus 0000:00: root bus resource [mem 0x000cc000-0x000cffff window] <6>[ 0.555528] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000d3fff window] <6>[ 0.556860] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff window] <6>[ 0.557527] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff window] <6>[ 0.557860] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff window] <6>[ 0.558527] pci_bus 0000:00: root bus resource [mem 0x000e0000-0x000e3fff window] <6>[ 0.559861] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff window] <6>[ 0.560528] pci_bus 0000:00: root bus resource [mem 0x000e8000-0x000ebfff window] <6>[ 0.561860] pci_bus 0000:00: root bus resource [mem 0x000ec000-0x000effff window] <6>[ 0.562527] pci_bus 0000:00: root bus resource [mem 0x000f0000-0x000fffff window] <6>[ 0.562860] pci_bus 0000:00: root bus resource [mem 0x80000001-0xdfffffff window] <6>[ 0.563527] pci_bus 0000:00: root bus resource [mem 0x800000000-0xbffffffff window] <6>[ 0.564861] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window] <6>[ 0.565528] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed44fff window] <6>[ 0.566861] pci_bus 0000:00: root bus resource [bus 00-ff] <6>[ 0.567464] pci 0000:00:00.0: [8086:590c] type 00 class 0x060000 <6>[ 0.569227] pci 0000:00:02.0: [8086:591c] type 00 class 0x030000 <6>[ 0.569885] pci 0000:00:02.0: reg 0x10: [mem 0xd0000000-0xd0ffffff 64bit] <6>[ 0.570510] pci 0000:00:02.0: reg 0x18: [mem 0xc0000000-0xcfffffff 64bit pref] <6>[ 0.571870] pci 0000:00:02.0: reg 0x20: [io 0x1c00-0x1c3f] <6>[ 0.573282] pci 0000:00:04.0: [8086:1903] type 00 class 0x118000 <6>[ 0.573887] pci 0000:00:04.0: reg 0x10: [mem 0xd1120000-0xd1127fff 64bit] <6>[ 0.575541] pci 0000:00:08.0: [8086:1911] type 00 class 0x088000 <6>[ 0.576888] pci 0000:00:08.0: reg 0x10: [mem 0xd1130000-0xd1130fff 64bit] <6>[ 0.578420] pci 0000:00:14.0: [8086:9d2f] type 00 class 0x0c0330 <6>[ 0.578899] pci 0000:00:14.0: reg 0x10: [mem 0xd1100000-0xd110ffff 64bit] <6>[ 0.579869] pci 0000:00:14.0: PME# supported from D3hot D3cold <6>[ 0.581441] pci 0000:00:14.2: [8086:9d31] type 00 class 0x118000 <6>[ 0.582903] pci 0000:00:14.2: reg 0x10: [mem 0xd1131000-0xd1131fff 64bit] <6>[ 0.584470] pci 0000:00:15.0: [8086:9d60] type 00 class 0x118000 <6>[ 0.584914] pci 0000:00:15.0: reg 0x10: [mem 0xd1132000-0xd1132fff 64bit] <6>[ 0.586606] pci 0000:00:15.1: [8086:9d61] type 00 class 0x118000 <6>[ 0.587912] pci 0000:00:15.1: reg 0x10: [mem 0xd1133000-0xd1133fff 64bit] <6>[ 0.589638] pci 0000:00:19.0: [8086:9d66] type 00 class 0x118000 <6>[ 0.589908] pci 0000:00:19.0: reg 0x10: [mem 0xfe034000-0xfe034fff 64bit] <6>[ 0.590541] pci 0000:00:19.0: reg 0x18: [mem 0xd1135000-0xd1135fff 64bit] <6>[ 0.592936] pci 0000:00:19.1: [8086:9d65] type 00 class 0x118000 <6>[ 0.593520] pci 0000:00:19.1: reg 0x10: [mem 0xd1136000-0xd1136fff 64bit] <6>[ 0.596002] pci 0000:00:1c.0: [8086:9d10] type 01 class 0x060400 <6>[ 0.596956] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold <6>[ 0.598532] pci 0000:00:1e.0: [8086:9d27] type 00 class 0x118000 <6>[ 0.598908] pci 0000:00:1e.0: reg 0x10: [mem 0xd1137000-0xd1137fff 64bit] <6>[ 0.600608] pci 0000:00:1e.2: [8086:9d29] type 00 class 0x118000 <6>[ 0.601908] pci 0000:00:1e.2: reg 0x10: [mem 0xd1138000-0xd1138fff 64bit] <6>[ 0.603608] pci 0000:00:1e.4: [8086:9d2b] type 00 class 0x080501 <6>[ 0.603901] pci 0000:00:1e.4: reg 0x10: [mem 0xd1139000-0xd1139fff 64bit] <6>[ 0.605919] pci 0000:00:1e.6: [8086:9d2d] type 00 class 0x080501 <6>[ 0.606497] pci 0000:00:1e.6: reg 0x10: [mem 0xd113a000-0xd113afff 64bit] <6>[ 0.608918] pci 0000:00:1f.0: [8086:9d4b] type 00 class 0x060100 <6>[ 0.610499] pci 0000:00:1f.2: [8086:9d21] type 00 class 0x058000 <6>[ 0.611894] pci 0000:00:1f.2: reg 0x10: [mem 0xd1128000-0xd112bfff] <6>[ 0.613479] pci 0000:00:1f.3: [8086:9d71] type 00 class 0x040100 <6>[ 0.613906] pci 0000:00:1f.3: reg 0x10: [mem 0xd112c000-0xd112ffff 64bit] <6>[ 0.614569] pci 0000:00:1f.3: reg 0x20: [mem 0xd1110000-0xd111ffff 64bit] <6>[ 0.615981] pci 0000:00:1f.3: PME# supported from D3hot D3cold <6>[ 0.617537] pci 0000:00:1f.4: [8086:9d23] type 00 class 0x0c0500 <6>[ 0.617926] pci 0000:00:1f.4: reg 0x10: [mem 0xd113c000-0xd113c0ff 64bit] <6>[ 0.618605] pci 0000:00:1f.4: reg 0x20: [io 0xefa0-0xefbf] <6>[ 0.620645] pci 0000:00:1f.5: [8086:9d24] type 00 class 0x000000 <6>[ 0.620894] pci 0000:00:1f.5: reg 0x10: [mem 0xfe010000-0xfe010fff] <6>[ 0.623425] pci 0000:01:00.0: [8086:095a] type 00 class 0x028000 <6>[ 0.625154] pci 0000:01:00.0: reg 0x10: [mem 0xd1000000-0xd1001fff 64bit] <6>[ 0.627458] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold <6>[ 0.631637] pci 0000:00:1c.0: PCI bridge to [bus 01] <6>[ 0.631877] pci 0000:00:1c.0: bridge window [mem 0xd1000000-0xd10fffff] <6>[ 0.634355] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.636165] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 12 14 15) <6>[ 0.637152] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.638149] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.639145] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.640147] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.642145] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.643150] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.651532] ACPI: EC: interrupt unblocked <6>[ 0.651858] ACPI: EC: event unblocked <6>[ 0.652219] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 <6>[ 0.652859] ACPI: EC: GPE=0x6e <6>[ 0.653163] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC initialization complete <6>[ 0.654863] ACPI: \_SB_.PCI0.LPCB.EC0_: EC: Used to handle transactions and events <6>[ 0.656197] iommu: Default domain type: Translated <6>[ 0.657138] pci 0000:00:02.0: vgaarb: setting as boot VGA device <6>[ 0.657495] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none <6>[ 0.658894] pci 0000:00:02.0: vgaarb: bridge control possible <6>[ 0.659418] vgaarb: loaded <5>[ 0.660491] SCSI subsystem initialized <6>[ 0.662104] ACPI: bus type USB registered <6>[ 0.662104] usbcore: registered new interface driver usbfs <6>[ 0.662515] usbcore: registered new interface driver hub <6>[ 0.663900] usbcore: registered new device driver usb <6>[ 0.664486] mc: Linux media interface: v0.10 <6>[ 0.664892] videodev: Linux video capture interface: v2.00 <6>[ 0.665430] pps_core: LinuxPPS API ver. 1 registered <6>[ 0.665858] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <6>[ 0.666871] PTP clock support registered <6>[ 0.668109] Advanced Linux Sound Architecture Driver Initialized. <6>[ 0.670081] NetLabel: Initializing <6>[ 0.670412] NetLabel: domain hash size = 128 <6>[ 0.671864] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO <6>[ 0.672468] NetLabel: unlabeled traffic allowed by default <6>[ 0.673013] PCI: Using ACPI for IRQ routing <6>[ 0.683854] clocksource: Switched to clocksource tsc-early <5>[ 1.139583] VFS: Disk quotas dquot_6.6.0 <6>[ 1.140028] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) <6>[ 1.141125] pnp: PnP ACPI init <6>[ 1.142293] system 00:00: [mem 0xfed10000-0xfed17fff] has been reserved <6>[ 1.142914] system 00:00: [mem 0xfed18000-0xfed18fff] has been reserved <6>[ 1.143513] system 00:00: [mem 0xfed19000-0xfed19fff] has been reserved <6>[ 1.144125] system 00:00: [mem 0xe0000000-0xe3ffffff] has been reserved <6>[ 1.144735] system 00:00: [mem 0xfed20000-0xfed3ffff] has been reserved <6>[ 1.145333] system 00:00: [mem 0xfed90000-0xfed93fff] could not be reserved <6>[ 1.145973] system 00:00: [mem 0xfed45000-0xfed8ffff] could not be reserved <6>[ 1.146599] system 00:00: [mem 0xff000000-0xffffffff] has been reserved <6>[ 1.147209] system 00:00: [mem 0xfee00000-0xfeefffff] has been reserved <6>[ 1.147818] system 00:00: [mem 0xfed00000-0xfed003ff] has been reserved <6>[ 1.149392] system 00:01: [io 0x1800-0x18fe] has been reserved <6>[ 1.150353] system 00:03: [io 0x0900-0x09fe] has been reserved <6>[ 1.151173] system 00:04: [io 0x0200] has been reserved <6>[ 1.151678] system 00:04: [io 0x0204] has been reserved <6>[ 1.152168] system 00:04: [io 0x0800-0x087f] has been reserved <6>[ 1.152720] system 00:04: [io 0x0880-0x08ff] has been reserved <6>[ 1.155768] pnp: PnP ACPI: found 6 devices <6>[ 1.170912] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns <6>[ 1.171859] NET: Registered protocol family 2 <6>[ 1.172453] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear) <6>[ 1.175017] tcp_listen_portaddr_hash hash table entries: 2048 (order: 5, 163840 bytes, linear) <6>[ 1.176068] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear) <6>[ 1.177013] TCP bind hash table entries: 32768 (order: 9, 2359296 bytes, linear) <6>[ 1.180050] TCP: Hash tables configured (established 32768 bind 32768) <6>[ 1.181019] MPTCP token hash table entries: 4096 (order: 6, 360448 bytes, linear) <6>[ 1.182052] UDP hash table entries: 2048 (order: 6, 327680 bytes, linear) <6>[ 1.182980] UDP-Lite hash table entries: 2048 (order: 6, 327680 bytes, linear) <6>[ 1.184093] NET: Registered protocol family 1 <6>[ 1.185281] RPC: Registered named UNIX socket transport module. <6>[ 1.185873] RPC: Registered udp transport module. <6>[ 1.186312] RPC: Registered tcp transport module. <6>[ 1.186758] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 1.188008] NET: Registered protocol family 44 <6>[ 1.188444] pci 0000:00:1c.0: PCI bridge to [bus 01] <6>[ 1.188942] pci 0000:00:1c.0: bridge window [mem 0xd1000000-0xd10fffff] <6>[ 1.189565] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] <6>[ 1.190135] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] <6>[ 1.190778] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] <6>[ 1.191395] pci_bus 0000:00: resource 7 [mem 0x000c0000-0x000c3fff window] <6>[ 1.192023] pci_bus 0000:00: resource 8 [mem 0x000c4000-0x000c7fff window] <6>[ 1.192639] pci_bus 0000:00: resource 9 [mem 0x000c8000-0x000cbfff window] <6>[ 1.193266] pci_bus 0000:00: resource 10 [mem 0x000cc000-0x000cffff window] <6>[ 1.193901] pci_bus 0000:00: resource 11 [mem 0x000d0000-0x000d3fff window] <6>[ 1.194525] pci_bus 0000:00: resource 12 [mem 0x000d4000-0x000d7fff window] <6>[ 1.195158] pci_bus 0000:00: resource 13 [mem 0x000d8000-0x000dbfff window] <6>[ 1.195836] pci_bus 0000:00: resource 14 [mem 0x000dc000-0x000dffff window] <6>[ 1.196461] pci_bus 0000:00: resource 15 [mem 0x000e0000-0x000e3fff window] <6>[ 1.197095] pci_bus 0000:00: resource 16 [mem 0x000e4000-0x000e7fff window] <6>[ 1.197729] pci_bus 0000:00: resource 17 [mem 0x000e8000-0x000ebfff window] <6>[ 1.198353] pci_bus 0000:00: resource 18 [mem 0x000ec000-0x000effff window] <6>[ 1.198987] pci_bus 0000:00: resource 19 [mem 0x000f0000-0x000fffff window] <6>[ 1.199611] pci_bus 0000:00: resource 20 [mem 0x80000001-0xdfffffff window] <6>[ 1.200244] pci_bus 0000:00: resource 21 [mem 0x800000000-0xbffffffff window] <6>[ 1.200894] pci_bus 0000:00: resource 22 [mem 0xfd000000-0xfe7fffff window] <6>[ 1.201518] pci_bus 0000:00: resource 23 [mem 0xfed40000-0xfed44fff window] <6>[ 1.202151] pci_bus 0000:01: resource 1 [mem 0xd1000000-0xd10fffff] <6>[ 1.203218] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] <6>[ 1.206131] PCI: CLS 64 bytes, default 64 <6>[ 1.206940] Unpacking initramfs... <6>[ 1.669114] Freeing initrd memory: 10400K <6>[ 1.669576] DMAR: Host address width 39 <6>[ 1.670045] DMAR: DRHD base: 0x000000fed90000 flags: 0x0 <6>[ 1.670604] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e <6>[ 1.671368] DMAR: RMRR base: 0x0000007b800000 end: 0x0000007fffffff <6>[ 1.671948] DMAR: DRHD base: 0x000000fed91000 flags: 0x1 <6>[ 1.672453] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da <6>[ 1.673273] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) <6>[ 1.673872] software IO TLB: mapped [mem 0x0000000076998000-0x000000007a998000] (64MB) <6>[ 1.674815] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, 655360 ms ovfl timer <6>[ 1.675518] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules <6>[ 1.676068] RAPL PMU: hw unit of domain package 2^-14 Joules <6>[ 1.676583] RAPL PMU: hw unit of domain dram 2^-14 Joules <6>[ 1.677099] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules <6>[ 1.677614] RAPL PMU: hw unit of domain psys 2^-14 Joules <3>[ 1.680057] kvm: already loaded the other module <6>[ 1.703568] check: Scanning for low memory corruption every 60 seconds <5>[ 1.707537] Initialise system trusted keyrings <6>[ 1.708255] workingset: timestamp_bits=56 max_order=20 bucket_order=0 <5>[ 1.729670] NFS: Registering the id_resolver key type <5>[ 1.730180] Key type id_resolver registered <5>[ 1.730603] Key type id_legacy registered <5>[ 1.753319] Key type asymmetric registered <5>[ 1.753760] Asymmetric key parser 'x509' registered <6>[ 1.754266] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) <6>[ 1.754962] io scheduler mq-deadline registered <6>[ 1.755386] io scheduler kyber registered <4>[ 1.756011] test_firmware: interface ready <6>[ 1.758035] pcieport 0000:00:1c.0: PME: Signaling with IRQ 120 <6>[ 1.759976] ACPI: AC Adapter [AC] (on-line) <6>[ 1.760802] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/PNP0C09:00/PNP0C0D:00/input/input0 <6>[ 1.762692] ACPI: Lid Switch [LID0] <6>[ 1.763304] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1 <6>[ 1.764251] ACPI: Power Button [PWRF] <6>[ 1.765082] ACPI: \_PR_.CP00: Found 3 idle states <6>[ 1.766307] ACPI: \_PR_.CP01: Found 3 idle states <6>[ 1.767375] ACPI: \_PR_.CP02: Found 3 idle states <6>[ 1.768461] ACPI: \_PR_.CP03: Found 3 idle states <6>[ 1.770125] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled <4>[ 1.774379] hpet_acpi_add: no address or irqs in _CRS <6>[ 1.774923] battery: ACPI: Battery Slot [BAT0] (battery present) <6>[ 1.775199] Non-volatile memory driver v1.3 <6>[ 1.776155] Linux agpgart interface v0.103 <6>[ 1.777137] [drm] amdgpu kernel modesetting enabled. <6>[ 1.780290] i915 0000:00:02.0: vgaarb: deactivate vga console <6>[ 1.833159] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem <6>[ 1.834977] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4) <6>[ 1.874817] [drm] Initialized i915 1.6.0 20200917 for 0000:00:02.0 on minor 0 <6>[ 1.878626] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 1 <6>[ 1.897403] loop: module loaded <6>[ 1.898521] lkdtm: No crash points registered, enable through debugfs <6>[ 1.923788] printk: console [ttyS0] disabled <6>[ 1.924529] dw-apb-uart.2: ttyS0 at MMIO 0xfe034000 (irq = 32, base_baud = 115200) is a 16550A <6>[ 2.714905] tsc: Refined TSC clocksource calibration: 1608.000 MHz <6>[ 2.716377] printk: console [ttyS0] enabled <6>[ 2.725148] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x172daa3a18b, max_idle_ns: 440795212390 ns <6>[ 2.746161] dw-apb-uart.4: ttyS1 at MMIO 0xd1137000 (irq = 20, base_baud = 115200) is a 16550A <6>[ 5.559102] clocksource: Switched to clocksource tsc <6>[ 5.559296] fbcon: i915drmfb (fb0) is primary device <4>[ 5.561337] pxa2xx-spi pxa2xx-spi.5: no DMA channels available, using PIO <6>[ 5.570398] e100: Intel(R) PRO/100 Network Driver <6>[ 5.570405] e100: Copyright(c) 1999-2006 Intel Corporation <6>[ 5.570471] e1000: Intel(R) PRO/1000 Network Driver <6>[ 5.570473] e1000: Copyright (c) 1999-2006 Intel Corporation. <6>[ 5.570553] e1000e: Intel(R) PRO/1000 Network Driver <6>[ 5.570556] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. <6>[ 5.570638] sky2: driver version 1.30 <6>[ 5.570986] usbcore: registered new interface driver r8152 <6>[ 5.571455] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver <6>[ 5.571481] ehci-pci: EHCI PCI platform driver <6>[ 5.571555] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver <6>[ 5.571572] ohci-pci: OHCI PCI platform driver <6>[ 5.571631] uhci_hcd: USB Universal Host Controller Interface driver <6>[ 5.571703] tpm_tis_spi spi-PRP0001:00: TPM ready IRQ confirmed on attempt 2 <6>[ 5.572730] xhci_hcd 0000:00:14.0: xHCI Host Controller <6>[ 5.573803] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 <6>[ 5.575192] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0000000081109810 <6>[ 5.575248] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported <6>[ 5.577199] xhci_hcd 0000:00:14.0: xHCI Host Controller <6>[ 5.577637] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 <6>[ 5.577674] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed <6>[ 5.578207] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10 <6>[ 5.578227] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 5.578232] usb usb1: Product: xHCI Host Controller <6>[ 5.578235] usb usb1: Manufacturer: Linux 5.10.182-cip35 xhci-hcd <6>[ 5.578238] usb usb1: SerialNumber: 0000:00:14.0 <6>[ 5.579902] hub 1-0:1.0: USB hub found <6>[ 5.580120] hub 1-0:1.0: 12 ports detected <6>[ 5.583844] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10 <6>[ 5.583849] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 5.583853] usb usb2: Product: xHCI Host Controller <6>[ 5.583856] usb usb2: Manufacturer: Linux 5.10.182-cip35 xhci-hcd <6>[ 5.583859] usb usb2: SerialNumber: 0000:00:14.0 <6>[ 5.584850] hub 2-0:1.0: USB hub found <6>[ 5.584908] hub 2-0:1.0: 6 ports detected <6>[ 5.586749] usbcore: registered new interface driver usblp <6>[ 5.586843] usbcore: registered new interface driver usb-storage <6>[ 5.587435] udc-core: couldn't find an available UDC - added [g_ether] to list of pending drivers <6>[ 5.587574] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1 <4>[ 5.587577] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp <4>[ 5.588314] i8042: Warning: Keylock active <6>[ 5.588571] serio: i8042 KBD port at 0x60,0x64 irq 1 <6>[ 5.591145] rtc_cmos 00:02: RTC can wake from S4 <6>[ 5.593247] tpm_tis_spi spi-PRP0001:00: 2.0 TPM (device-id 0x28, rev-id 0) <6>[ 5.593854] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 <6>[ 5.594283] rtc_cmos 00:02: registered as rtc0 <6>[ 5.594632] rtc_cmos 00:02: alarms up to one month, 242 bytes nvram <6>[ 5.596067] i801_smbus 0000:00:1f.4: SPD Write Disable is set <6>[ 5.596112] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt <6>[ 5.597108] i2c i2c-9: 2/2 memory slots populated (from DMI) <6>[ 5.598845] device-mapper: ioctl: 4.43.0-ioctl (2020-10-01) initialised: dm-devel@redhat.com <6>[ 5.598895] intel_pstate: Intel P-state driver initializing <6>[ 5.599770] intel_pstate: HWP enabled <6>[ 5.599803] sdhci: Secure Digital Host Controller Interface driver <6>[ 5.599804] sdhci: Copyright(c) Pierre Ossman <6>[ 5.599831] sdhci-pci 0000:00:1e.4: SDHCI controller found [8086:9d2b] (rev 21) <6>[ 5.599929] Console: switching to colour frame buffer device 240x67 <6>[ 5.600851] mmc0: SDHCI controller on PCI [0000:00:1e.4] using ADMA 64-bit <6>[ 5.601012] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.602346] hid: raw HID events driver (C) Jiri Kosina <6>[ 5.602832] usbcore: registered new interface driver usbhid <6>[ 5.602838] usbhid: USB HID core driver <6>[ 5.603212] input: Tablet Mode Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/PNP0C09:00/GOOG0006:00/input/input3 <6>[ 5.608385] cros_ec_lpcs GOOG0004:00: Chrome EC device registered <6>[ 5.611703] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device <6>[ 5.618199] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 <6>[ 5.716710] tpm_tis_spi spi-PRP0001:00: Cr50 firmware version: B2-C:0 RO_A:0.0.10/29d77172 RW_B:0.3.15/cr50_v1.9308_87_mp.224-6 <6>[ 5.721716] netem: version 1.3 <6>[ 5.805991] mmc0: new HS400 MMC card at address 0001 <6>[ 5.810607] ipip: IPv4 and MPLS over IPv4 tunneling driver <6>[ 5.815878] mmcblk0: mmc0:0001 DA4064 58.2 GiB <6>[ 5.825249] IPv4 over IPsec tunneling driver <6>[ 5.833359] mmcblk0boot0: mmc0:0001 DA4064 partition 1 4.00 MiB <6>[ 5.837666] usb 1-3: new full-speed USB device number 2 using xhci_hcd <6>[ 5.839317] Initializing XFRM netlink socket <6>[ 5.846197] mmcblk0boot1: mmc0:0001 DA4064 partition 2 4.00 MiB <6>[ 5.852077] NET: Registered protocol family 10 <6>[ 5.856190] mmcblk0rpmb: mmc0:0001 DA4064 partition 3 16.0 MiB, chardev (245:0) <6>[ 5.861574] Segment Routing with IPv6 <6>[ 5.881735] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 <6>[ 5.885140] NET: Registered protocol family 17 <6>[ 6.036760] usb 1-3: New USB device found, idVendor=8087, idProduct=0a2a, bcdDevice= 0.03 <5>[ 6.042994] Key type dns_resolver registered <6>[ 6.049344] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0 <6>[ 6.105739] usb 2-3: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd <6>[ 6.220017] microcode: sig=0x806e9, pf=0x10, revision=0x98 <6>[ 6.226492] microcode: Microcode Update Driver: v2.2. <6>[ 6.226499] IPI shorthand broadcast: enabled <6>[ 6.232457] usb 2-3: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=31.00 <6>[ 6.237551] sched_clock: Marking stable (6146861768, 90644583)->(6264716105, -27209754) <6>[ 6.246963] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=6 <6>[ 6.264486] usb 2-3: Product: USB 10/100/1000 LAN <6>[ 6.270045] usb 2-3: Manufacturer: Realtek <6>[ 6.270175] registered taskstats version 1 <6>[ 6.274921] usb 2-3: SerialNumber: 001000001 <5>[ 6.284875] Loading compiled-in X.509 certificates <6>[ 6.285361] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops) <6>[ 6.292269] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 6.310531] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <3>[ 6.315295] snd_hda_intel 0000:00:1f.3: Cannot probe codecs, giving up <6>[ 6.320025] PM: Magic number: 11:772:55 <6>[ 6.331616] printk: console [netcon0] enabled <6>[ 6.336786] netconsole: network logging started <6>[ 6.345804] usb 1-9: new high-speed USB device number 3 using xhci_hcd <6>[ 6.512738] usb 1-9: New USB device found, idVendor=13d3, idProduct=56d4, bcdDevice=18.07 <6>[ 6.522230] usb 1-9: New USB device strings: Mfr=3, Product=1, SerialNumber=2 <6>[ 6.530527] usb 1-9: Product: USB2.0 HD UVC WebCam <6>[ 6.536199] usb 1-9: Manufacturer: Azurewave <6>[ 6.541288] usb 1-9: SerialNumber: 0x0001 <6>[ 6.553501] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 6.598811] usb 2-3: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd <6>[ 6.644767] r8152 2-3:1.0: load rtl8153b-2 v2 04/27/23 successfully <6>[ 6.681499] r8152 2-3:1.0 eth0: v1.11.11 <6>[ 6.686910] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 8.284767] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready <6>[ 8.284979] r8152 2-3:1.0 eth0: carrier on <5>[ 8.296693] Sending DHCP requests .., OK <6>[ 10.587586] IP-Config: Got DHCP answer from 192.168.201.1, my address is 192.168.201.15 <6>[ 10.596860] IP-Config: Complete: <6>[ 10.600792] device=eth0, hwaddr=00:e0:4c:68:04:98, ipaddr=192.168.201.15, mask=255.255.255.0, gw=192.168.201.1 <6>[ 10.612770] host=asus-c433ta-aj0005-rammus-cbg-4, domain=lava-rack, nis-domain=(none) <6>[ 10.622312] bootserver=192.168.201.1, rootserver=192.168.201.1, rootpath= <6>[ 10.622315] nameserver0=192.168.201.1 <5>[ 10.635767] cfg80211: Loading compiled-in X.509 certificates for regulatory database <6>[ 10.647434] modprobe (100) used greatest stack depth: 14208 bytes left <5>[ 10.650397] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' <4>[ 10.662890] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 <6>[ 10.663772] ALSA device list: <6>[ 10.672879] cfg80211: failed to load regulatory.db <6>[ 10.676464] No soundcards found. <4>[ 10.686563] dw-apb-uart dw-apb-uart.2: forbid DMA for kernel console <6>[ 10.696177] Freeing unused kernel image (initmem) memory: 2148K <6>[ 10.712817] Write protecting the kernel read-only data: 34816k <6>[ 10.720518] Freeing unused kernel image (text/rodata gap) memory: 2028K <6>[ 10.728542] Freeing unused kernel image (rodata/data gap) memory: 860K <6>[ 10.736251] Run /init as init process <6>[ 10.745189] cat (110) used greatest stack depth: 14016 bytes left Loading, please wait... Starting version 247.3-7+deb11u2 <6>[ 10.763194] systemd-udevd (122) used greatest stack depth: 13592 bytes left <6>[ 10.923941] chromeos ramoops using acpi device. <6>[ 10.928064] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 10.946191] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 10.961258] cros-usbpd-notify-acpi GOOG0003:00: Couldn't get Chrome EC device pointer. <4>[ 10.971227] i2c_hid i2c-PNP0C50:00: supply vdd not found, using dummy regulator <6>[ 10.975201] udevadm (135) used greatest stack depth: 13168 bytes left <6>[ 10.979833] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 10.998999] i2c_hid i2c-PNP0C50:00: supply vddl not found, using dummy regulator <6>[ 11.010076] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.020832] Registered efivars operations <6>[ 11.026601] gsmi version 1.0 loaded <6>[ 11.034456] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.179168] input: PNP0C50:00 0457:157E Touchscreen as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-6/i2c-PNP0C50:00/0018:0457:157E.0001/input/input4 <6>[ 11.197478] hid-generic 0018:0457:157E.0001: input,hidraw0: I2C HID v1.00 Device [PNP0C50:00 0457:157E] on i2c-PNP0C50:00 <6>[ 11.210498] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.240994] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.241021] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (13d3:56d4) <6>[ 11.257800] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.274333] input: USB2.0 HD UVC WebCam: USB2.0 HD as /devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.0/input/input6 <6>[ 11.274442] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.286923] usbcore: registered new interface driver uvcvideo <4>[ 11.287115] da7219 i2c-DLGS7219:00: Using default DAI clk names: da7219-dai-wclk, da7219-dai-bclk <6>[ 11.311847] USB Video Class driver (1.1.1) <6>[ 11.317582] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.327398] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) Begin: Loading essential drivers ... done. Begin: Running /scripts/init-premount ... done. Begin: Mounting root file system ... Begin: Running /scripts/nfs-top ... done. Begin: Running /scripts/nfs-premount ... Waiting up to 60 secs for any ethernet to become available Device /sys/class/net/eth0 found done. IP-Config: eth0 hardware address 00:e0:4c:68:04:98 mtu 1500 DHCP IP-Config: eth0 complete (dhcp from 192.168.201.1): address: 192.168.201.15 broadcast: 192.168.201.255 netmask: 255.255.255.0 gateway: 192.168.201.1 dns0 : 192.168.201.1 dns1 : 0.0.0.0 host : asus-c433ta-aj0005-rammus-cbg-4 domain : lava-rack rootserver: 192.168.201.1 rootpath: filename : <6>[ 11.429435] nfsmount (170) used greatest stack depth: 12688 bytes left done. Begin: Running /scripts/nfs-bottom ... done. Begin: Running /scripts/init-bottom ... done. SELinux: Could not open policy file <= /etc/selinux/targeted/policy/policy.33: No such file or directory <30>[ 12.650512] systemd[1]: systemd 247.3-7+deb11u2 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=unified) <30>[ 12.688977] systemd[1]: Detected architecture x86-64. Welcome to Debian GNU/Linux 11 (bullseye)! <30>[ 12.723347] systemd[1]: Set hostname to . <30>[ 13.397708] systemd[1]: Queued start job for default target Graphical Interface. <30>[ 13.409992] systemd[1]: Created slice system-getty.slice. [ OK ] Created slice system-getty.slice. <30>[ 13.427410] systemd[1]: Created slice system-modprobe.slice. [ OK ] Created slice system-modprobe.slice. <30>[ 13.444378] systemd[1]: Created slice system-serial\x2dgetty.slice. [ OK ] Created slice system-serial\x2dgetty.slice. <30>[ 13.461328] systemd[1]: Created slice User and Session Slice. [ OK ] Created slice User and Session Slice. <30>[ 13.478422] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ OK ] Started Dispatch Password …ts to Console Directory Watch. <30>[ 13.500299] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ OK ] Started Forward Password R…uests to Wall Directory Watch. <30>[ 13.520266] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ OK ] Set up automount Arbitrary…s File System Automount Point. <30>[ 13.541107] systemd[1]: Reached target Local Encrypted Volumes. [ OK ] Reached target Local Encrypted Volumes. <30>[ 13.558108] systemd[1]: Reached target Paths. [ OK ] Reached target Paths. <30>[ 13.572039] systemd[1]: Reached target Remote File Systems. [ OK ] Reached target Remote File Systems. <30>[ 13.587952] systemd[1]: Reached target Slices. [ OK ] Reached target Slices. <30>[ 13.602056] systemd[1]: Reached target Swap. [ OK ] Reached target Swap. <30>[ 13.613383] systemd[1]: Listening on initctl Compatibility Named Pipe. [ OK ] Listening on initctl Compatibility Named Pipe. <30>[ 13.632509] systemd[1]: Listening on Journal Audit Socket. [ OK ] Listening on Journal Audit Socket. <30>[ 13.650170] systemd[1]: Listening on Journal Socket (/dev/log). [ OK ] Listening on Journal Socket (/dev/log). <30>[ 13.667785] systemd[1]: Listening on Journal Socket. [ OK ] Listening on Journal Socket. <30>[ 13.684511] systemd[1]: Listening on Network Service Netlink Socket. [ OK ] Listening on Network Service Netlink Socket. <30>[ 13.704936] systemd[1]: Listening on udev Control Socket. [ OK ] Listening on udev Control Socket. <30>[ 13.721645] systemd[1]: Listening on udev Kernel Socket. [ OK ] Listening on udev Kernel Socket. <30>[ 13.741926] systemd[1]: Mounting Huge Pages File System... Mounting Huge Pages File System... <30>[ 13.758376] systemd[1]: Mounting POSIX Message Queue File System... Mounting POSIX Message Queue File System... <30>[ 13.777022] systemd[1]: Mounting Kernel Debug File System... Mounting Kernel Debug File System... <30>[ 13.795267] systemd[1]: Mounting Kernel Trace File System... Mounting Kernel Trace File System... <30>[ 13.813372] systemd[1]: Starting Create list of static device nodes for the current kernel... Starting Create list of st…odes for the current kernel... <30>[ 13.834207] systemd[1]: Starting Load Kernel Module configfs... Starting Load Kernel Module configfs... <30>[ 13.851372] systemd[1]: Starting Load Kernel Module drm... Starting Load Kernel Module drm... <30>[ 13.866429] systemd[1]: Starting Load Kernel Module fuse... Starting Load Kernel Module fuse... <30>[ 13.902274] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped. <6>[ 13.913045] fuse: init (API version 7.32) <30>[ 13.919214] systemd[1]: Starting Journal Service... Starting Journal Service... <30>[ 13.934708] systemd[1]: Starting Load Kernel Modules... Starting Load Kernel Modules... <30>[ 13.948287] systemd[1]: Starting Remount Root and Kernel File Systems... Starting Remount Root and Kernel File Systems... <30>[ 13.966187] systemd[1]: Starting Coldplug All udev Devices... Starting Coldplug All udev Devices... <30>[ 13.985336] systemd[1]: Mounted Huge Pages File System. [ OK ] Mounted Huge Pages File System. <30>[ 14.001915] systemd[1]: Mounted POSIX Message Queue File System. [ OK ] Mounted POSIX Message Queue File System. <30>[ 14.017966] systemd[1]: Mounted Kernel Debug File System. [ OK ] Mounted Kernel Debug File System. <30>[ 14.033962] systemd[1]: Mounted Kernel Trace File System. [ OK ] Mounted Kernel Trace File System. <30>[ 14.051257] systemd[1]: Finished Create list of static device nodes for the current kernel. [ OK ] Finished Create list of st… nodes for the current kernel. <30>[ 14.073466] systemd[1]: modprobe@configfs.service: Succeeded. <30>[ 14.080759] systemd[1]: Finished Load Kernel Module configfs. [ OK ] Finished Load Kernel Module configfs. <30>[ 14.097680] systemd[1]: modprobe@drm.service: Succeeded. <30>[ 14.104828] systemd[1]: Finished Load Kernel Module drm. [ OK ] Finished Load Kernel Module drm. <30>[ 14.121619] systemd[1]: modprobe@fuse.service: Succeeded. <30>[ 14.128731] systemd[1]: Finished Load Kernel Module fuse. [ OK ] Finished Load Kernel Module fuse. <30>[ 14.145015] systemd[1]: Started Journal Service. [ OK ] Started Journal Service. [ OK ] Finished Load Kernel Modules. [ OK ] Finished Remount Root and Kernel File Systems. Mounting FUSE Control File System... Mounting Kernel Configuration File System... Starting Flush Journal to Persistent Storage... Starting Load/Save Random Seed... Starting Apply Kernel Variables... Starting Create System Users... <46>[ 14.234157] systemd-journald[205]: Received client request to flush runtime journal. [ OK ] Mounted FUSE Control File System. [ OK ] Mounted Kernel Configuration File System. [ OK ] Finished Load/Save Random Seed. [ OK ] Finished Apply Kernel Variables. [ OK ] Finished Coldplug All udev Devices. [ OK ] Finished Create System Users. Starting Create Static Device Nodes in /dev... [ OK ] Finished Flush Journal to Persistent Storage. <6>[ 15.761368] systemd-tmpfile (216) used greatest stack depth: 12528 bytes left [ OK ] Finished Create Static Device Nodes in /dev. [ OK ] Reached target Local File Systems (Pre). [ OK ] Reached target Local File Systems. Starting Create Volatile Files and Directories... Starting Rule-based Manage…for Device Events and Files... [ OK ] Started Rule-based Manager for Device Events and Files. Starting Network Service... [ OK ] Finished Create Volatile Files and Directories. Starting Network Time Synchronization... Starting Update UTMP about System Boot/Shutdown... [ OK ] Found device Sunrise Point-LP Serial IO UART Controller. [ OK ] Finished Update UTMP about System Boot/Shutdown. [ OK ] Created slice system-systemd\x2dbacklight.slice. [ OK ] Listening on Load/Save RF …itch Status /dev/rfkill Watch. Starting Load/Save Screen …f backlight:intel_backlight... Starting Load/Save Screen …eds:chromeos::kbd_backlight... [ OK ] Finished Load/Save Screen … of backlight:intel_backlight. [ OK ] Finished Load/Save Screen … leds:chromeos::kbd_backlight. [ OK ] Started Network Time Synchronization. [ OK ] Reached target System Initialization. [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target System Time Set. [ OK ] Reached target System Time Synchronized. [ OK ] Started Daily apt download activities. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Started Periodic ext4 Onli…ata Check for All Filesystems. [ OK ] Started Discard unused blocks once a week. [ OK ] Reached target Timers. [ OK ] Listening on D-Bus System Message Bus Socket. [ OK ] Reached target Sockets. [ OK ] Reached target Basic System. [ OK ] Started D-Bus System Message Bus. Starting Remove Stale Onli…t4 Metadata Check Snapshots... Starting User Login Management... [ OK ] Started Network Service. Starting Network Name Resolution... [ OK ] Finished Remove Stale Onli…ext4 Metadata Check Snapshots. [ OK ] Started User Login Management. [ OK ] Started Network Name Resolution. [ OK ] Reached target Network. [ OK ] Reached target Host and Network Name Lookups. Starting Permit User Sessions... [ OK ] Finished Permit User Sessions. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Finished Update UTMP about System Runlevel Changes. Debian GNU/Linux 11 debian-bullseye-amd64 ttyS0 debian-bullseye-amd64 login: root (automatic login) Linux debian-bullseye-amd64 5.10.182-cip35 #1 SMP Wed Jun 14 01:54:33 UTC 2023 x86_64 The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. / # / # export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/10716720/extract-nfsrootfs-om7xp1jb' export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/10716720/extract-nfsrootfs-om7xp1jb' / # export NFS_SERVER_IP='192.168.201.1' export NFS_SERVER_IP='192.168.201.1' / # # # / # export SHELL=/bin/bash export SHELL=/bin/bash / # . /lava-10716720/environment . /lava-10716720/environment / # /lava-10716720/bin/lava-test-runner /lava-10716720/0 /lava-10716720/bin/lava-test-runner /lava-10716720/0 + export TESTRUN_ID=0_timesync-off + TESTRUN_ID=0_timesync-off + cd /lava-10716720/0/tests/0_timesync-off ++ cat uuid + UUID=10716720_1.5.2.3.1 + set +x + systemctl stop systemd-timesyncd + set +x + export TESTRUN_ID=1_kselftest-lkdtm + TESTRUN_ID=1_kselftest-lkdtm + cd /lava-10716720/0/tests/1_kselftest-lkdtm ++ cat uuid + UUID=10716720_1.5.2.3.5 + set +x + cd ./automated/linux/kselftest/ + ./kselftest.sh -c lkdtm -T '' -t kselftest_armhf.tar.gz -s True -u http://storage.kernelci.org/cip-gitlab/ci-iwamatsu-linux-5.10.y-cip-rc/v5.10.182-cip35-8-gc3d08808cfa7/x86_64/x86_64_defconfig+x86-chromebook+kselftest/gcc-10/kselftest.tar.xz -L '' -S /dev/null -b asus-C433TA-AJ0005-rammus -g cip-gitlab -e '' -p /opt/kselftests/mainline/ -n 1 -i 1 INFO: install_deps skipped --2023-06-14 02:04:01-- http://storage.kernelci.org/cip-gitlab/ci-iwamatsu-linux-5.10.y-cip-rc/v5.10.182-cip35-8-gc3d08808cfa7/x86_64/x86_64_defconfig+x86-chromebook+kselftest/gcc-10/kselftest.tar.xz Resolving storage.kernelci.org (storage.kernelci.org)... 20.171.243.82 Connecting to storage.kernelci.org (storage.kernelci.org)|20.171.243.82|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 3307804 (3.2M) [application/octet-stream] Saving to: 'kselftest.tar.xz' kselftest.tar.xz 0%[ ] 0 --.-KB/s kselftest.tar.xz 1%[ ] 50.15K 195KB/s kselftest.tar.xz 5%[> ] 191.56K 371KB/s kselftest.tar.xz 23%[===> ] 764.74K 847KB/s kselftest.tar.xz 71%[=============> ] 2.24M 1.93MB/s kselftest.tar.xz 100%[===================>] 3.15M 2.38MB/s in 1.3s 2023-06-14 02:04:03 (2.38 MB/s) - 'kselftest.tar.xz' saved [3307804/3307804] skiplist: ======================================== ======================================== lkdtm:PANIC.sh lkdtm:BUG.sh lkdtm:WARNING.sh lkdtm:WARNING_MESSAGE.sh lkdtm:EXCEPTION.sh lkdtm:LOOP.sh lkdtm:EXHAUST_STACK.sh lkdtm:CORRUPT_STACK.sh lkdtm:CORRUPT_STACK_STRONG.sh lkdtm:CORRUPT_LIST_ADD.sh lkdtm:CORRUPT_LIST_DEL.sh lkdtm:STACK_GUARD_PAGE_LEADING.sh lkdtm:STACK_GUARD_PAGE_TRAILING.sh lkdtm:UNSET_SMEP.sh lkdtm:DOUBLE_FAULT.sh lkdtm:CORRUPT_PAC.sh lkdtm:UNALIGNED_LOAD_STORE_WRITE.sh lkdtm:OVERWRITE_ALLOCATION.sh lkdtm:WRITE_AFTER_FREE.sh lkdtm:READ_AFTER_FREE.sh lkdtm:WRITE_BUDDY_AFTER_FREE.sh lkdtm:READ_BUDDY_AFTER_FREE.sh lkdtm:SLAB_FREE_DOUBLE.sh lkdtm:SLAB_FREE_CROSS.sh lkdtm:SLAB_FREE_PAGE.sh lkdtm:SOFTLOCKUP.sh lkdtm:HARDLOCKUP.sh lkdtm:SPINLOCKUP.sh lkdtm:HUNG_TASK.sh lkdtm:EXEC_DATA.sh lkdtm:EXEC_STACK.sh lkdtm:EXEC_KMALLOC.sh lkdtm:EXEC_VMALLOC.sh lkdtm:EXEC_RODATA.sh lkdtm:EXEC_USERSPACE.sh lkdtm:EXEC_NULL.sh lkdtm:ACCESS_USERSPACE.sh lkdtm:ACCESS_NULL.sh lkdtm:WRITE_RO.sh lkdtm:WRITE_RO_AFTER_INIT.sh lkdtm:WRITE_KERN.sh lkdtm:REFCOUNT_INC_OVERFLOW.sh lkdtm:REFCOUNT_ADD_OVERFLOW.sh lkdtm:REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh lkdtm:REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh lkdtm:REFCOUNT_DEC_ZERO.sh lkdtm:REFCOUNT_DEC_NEGATIVE.sh lkdtm:REFCOUNT_DEC_AND_TEST_NEGATIVE.sh lkdtm:REFCOUNT_SUB_AND_TEST_NEGATIVE.sh lkdtm:REFCOUNT_INC_ZERO.sh lkdtm:REFCOUNT_ADD_ZERO.sh lkdtm:REFCOUNT_INC_SATURATED.sh lkdtm:REFCOUNT_DEC_SATURATED.sh lkdtm:REFCOUNT_ADD_SATURATED.sh lkdtm:REFCOUNT_INC_NOT_ZERO_SATURATED.sh lkdtm:REFCOUNT_ADD_NOT_ZERO_SATURATED.sh lkdtm:REFCOUNT_DEC_AND_TEST_SATURATED.sh lkdtm:REFCOUNT_SUB_AND_TEST_SATURATED.sh lkdtm:REFCOUNT_TIMING.sh lkdtm:ATOMIC_TIMING.sh lkdtm:USERCOPY_HEAP_SIZE_TO.sh lkdtm:USERCOPY_HEAP_SIZE_FROM.sh lkdtm:USERCOPY_HEAP_WHITELIST_TO.sh lkdtm:USERCOPY_HEAP_WHITELIST_FROM.sh lkdtm:USERCOPY_STACK_FRAME_TO.sh lkdtm:USERCOPY_STACK_FRAME_FROM.sh lkdtm:USERCOPY_STACK_BEYOND.sh lkdtm:USERCOPY_KERNEL.sh lkdtm:STACKLEAK_ERASING.sh lkdtm:CFI_FORWARD_PROTO.sh ============== Tests to run =============== lkdtm:PANIC.sh lkdtm:BUG.sh lkdtm:WARNING.sh lkdtm:WARNING_MESSAGE.sh lkdtm:EXCEPTION.sh lkdtm:LOOP.sh lkdtm:EXHAUST_STACK.sh lkdtm:CORRUPT_STACK.sh lkdtm:CORRUPT_STACK_STRONG.sh lkdtm:CORRUPT_LIST_ADD.sh lkdtm:CORRUPT_LIST_DEL.sh lkdtm:STACK_GUARD_PAGE_LEADING.sh lkdtm:STACK_GUARD_PAGE_TRAILING.sh lkdtm:UNSET_SMEP.sh lkdtm:DOUBLE_FAULT.sh lkdtm:CORRUPT_PAC.sh lkdtm:UNALIGNED_LOAD_STORE_WRITE.sh lkdtm:OVERWRITE_ALLOCATION.sh lkdtm:WRITE_AFTER_FREE.sh lkdtm:READ_AFTER_FREE.sh lkdtm:WRITE_BUDDY_AFTER_FREE.sh lkdtm:READ_BUDDY_AFTER_FREE.sh lkdtm:SLAB_FREE_DOUBLE.sh lkdtm:SLAB_FREE_CROSS.sh lkdtm:SLAB_FREE_PAGE.sh lkdtm:SOFTLOCKUP.sh lkdtm:HARDLOCKUP.sh lkdtm:SPINLOCKUP.sh lkdtm:HUNG_TASK.sh lkdtm:EXEC_DATA.sh lkdtm:EXEC_STACK.sh lkdtm:EXEC_KMALLOC.sh lkdtm:EXEC_VMALLOC.sh lkdtm:EXEC_RODATA.sh lkdtm:EXEC_USERSPACE.sh lkdtm:EXEC_NULL.sh lkdtm:ACCESS_USERSPACE.sh lkdtm:ACCESS_NULL.sh lkdtm:WRITE_RO.sh lkdtm:WRITE_RO_AFTER_INIT.sh lkdtm:WRITE_KERN.sh lkdtm:REFCOUNT_INC_OVERFLOW.sh lkdtm:REFCOUNT_ADD_OVERFLOW.sh lkdtm:REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh lkdtm:REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh lkdtm:REFCOUNT_DEC_ZERO.sh lkdtm:REFCOUNT_DEC_NEGATIVE.sh lkdtm:REFCOUNT_DEC_AND_TEST_NEGATIVE.sh lkdtm:REFCOUNT_SUB_AND_TEST_NEGATIVE.sh lkdtm:REFCOUNT_INC_ZERO.sh lkdtm:REFCOUNT_ADD_ZERO.sh lkdtm:REFCOUNT_INC_SATURATED.sh lkdtm:REFCOUNT_DEC_SATURATED.sh lkdtm:REFCOUNT_ADD_SATURATED.sh lkdtm:REFCOUNT_INC_NOT_ZERO_SATURATED.sh lkdtm:REFCOUNT_ADD_NOT_ZERO_SATURATED.sh lkdtm:REFCOUNT_DEC_AND_TEST_SATURATED.sh lkdtm:REFCOUNT_SUB_AND_TEST_SATURATED.sh lkdtm:REFCOUNT_TIMING.sh lkdtm:ATOMIC_TIMING.sh lkdtm:USERCOPY_HEAP_SIZE_TO.sh lkdtm:USERCOPY_HEAP_SIZE_FROM.sh lkdtm:USERCOPY_HEAP<12>[ 29.865588] kselftest: Running tests in lkdtm _WHITELIST_TO.sh lkdtm:USERCOPY_HEAP_WHITELIST_FROM.sh lkdtm:USERCOPY_STACK_FRAME_TO.sh lkdtm:USERCOPY_STACK_FRAME_FROM.sh lkdtm:USERCOPY_STACK_BEYOND.sh lkdtm:USERCOPY_KERNEL.sh lkdtm:STACKLEAK_ERASING.sh lkdtm:CFI_FORWARD_PROTO.sh ===========End Tests to run =============== TAP version 13 1..70 # selftests: lkdtm: PANIC.sh # Skipping PANIC: crashes entire system ok 1 selftests: lkdtm: PANIC.sh # SKIP # selftests: lkdtm: BUG.sh <6>[ 30.348939] lkdtm: Performing direct entry BUG <4>[ 30.354489] ------------[ cut here ]------------ <2>[ 30.360012] kernel BUG at drivers/misc/lkdtm/bugs.c:76! <4>[ 30.366259] invalid opcode: 0000 [#1] SMP PTI <4>[ 30.371435] CPU: 2 PID: 635 Comm: cat Tainted: G W 5.10.182-cip35 #1 <4>[ 30.380290] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 30.387388] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 30.392063] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 30.413335] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 30.419461] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 30.427732] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 30.435993] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 30.444246] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 30.452507] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 30.460760] FS: 00007f4b1f427580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 30.470081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 30.476780] CR2: 00007f4b1f231000 CR3: 0000000104036003 CR4: 00000000003706e0 <4>[ 30.485041] Call Trace: <4>[ 30.488061] ? __die_body.cold+0x1a/0x1f <4>[ 30.492736] ? die+0x2b/0x50 <4>[ 30.496239] ? do_trap+0x91/0x110 <4>[ 30.500220] ? lkdtm_BUG+0x5/0x10 <4>[ 30.504210] ? do_error_trap+0x90/0x110 <4>[ 30.508781] ? lkdtm_BUG+0x5/0x10 <4>[ 30.512762] ? lkdtm_BUG+0x5/0x10 <4>[ 30.516752] ? exc_invalid_op+0x4e/0x70 <4>[ 30.521323] ? lkdtm_BUG+0x5/0x10 <4>[ 30.525305] ? asm_exc_invalid_op+0x12/0x20 <4>[ 30.530268] ? direct_entry+0xe0/0xe0 <4>[ 30.534647] ? lkdtm_BUG+0x5/0x10 <4>[ 30.538638] direct_entry.cold+0x2c/0x38 <4>[ 30.543308] full_proxy_write+0x53/0x80 <4>[ 30.547882] vfs_write+0xe7/0x3b0 <4>[ 30.551872] ksys_write+0x68/0xf0 <4>[ 30.555862] do_syscall_64+0x30/0x40 <4>[ 30.560144] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 30.566077] RIP: 0033:0x7f4b1f33d473 <4>[ 30.570357] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 30.591633] RSP: 002b:00007ffd0dfa7568 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 30.600379] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4b1f33d473 <4>[ 30.608640] RDX: 0000000000000004 RSI: 00007f4b1f231000 RDI: 0000000000000001 <4>[ 30.616892] RBP: 00007f4b1f231000 R08: 00007f4b1f230010 R09: 0000000000000000 <4>[ 30.625154] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 30.633406] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 30.641689] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <0>[ 30.696387] gsmi: Log Shutdown Reason 0x03 <4>[ 30.701266] ---[ end trace 19f7a216b67dc045 ]--- <4>[ 30.706741] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 30.711418] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 30.732702] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 30.738838] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 30.747109] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 30.755377] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 30.763686] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 30.771955] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 30.780219] FS: 00007f4b1f427580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 30.789602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 30.796322] CR2: 00007f4b1f231000 CR3: 0000000104036003 CR4: 00000000003706e0 # Segmentation fault # [ 30.348939] lkdtm: Performing direct entry BUG # [ 30.354489] ------------[ cut here ]------------ # [ 30.360012] kernel BUG at drivers/misc/lkdtm/bugs.c:76! # [ 30.366259] invalid opcode: 0000 [#1] SMP PTI # [ 30.371435] CPU: 2 PID: 635 Comm: cat Tainted: G W 5.10.182-cip35 #1 # [ 30.380290] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 30.387388] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 30.392063] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <6>[ 30.879961] lkdtm: Performing direct entry WARNING # [ 30.413335] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 #<4>[ 30.886712] ------------[ cut here ]------------ [ 30.419461] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX:<4>[ 30.898381] WARNING: CPU: 0 PID: 672 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x13/0x20 0000000000000000 # [ 30.427732] RDX: 0000000000000000 RSI: f<4>[ 30.914322] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight fff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 30.435993] RBP: fff<4>[ 30.973291] CPU: 0 PID: 672 Comm: cat Tainted: G D W 5.10.182-cip35 #1 fffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ <4>[ 30.988344] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 30.444246] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000<4>[ 31.001668] RIP: 0010:lkdtm_WARNING+0x13/0x20 0000000000004 # [ 30.452507] R13: ffffb7dc812e7f10 R14: ffffb<4>[ 31.013047] Code: c0 f4 ff ff ff eb c9 0f 1f 44 00 00 0f 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 01 75 05 c3 cc cc cc cc <0f> 0b c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 31 56 7dc812e7f10 R15: ffff9e0402af6000 # [ 30.460760] FS: 00007f4<4>[ 31.040611] RSP: 0018:ffffb7dc81377e60 EFLAGS: 00010202 b1f427580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000<4>[ 31.052916] RAX: ffffffff8fb79550 RBX: 0000000000000002 RCX: 0000000000000000 # [ 30.470081] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005<4>[ 31.067513] RDX: 0000000000000000 RSI: ffff9e047ac1bf70 RDI: ffffffff90b7e860 0033 # [ 30.476780] CR2: 00007f4b1f231000 CR3: 00000001040360<4>[ 31.081992] RBP: ffffffff90ff8d57 R08: 0000000000000000 R09: 0000000000000000 03 CR4: 00000000003706e0 # [ 30.485041] Call Trace: # [ 30<4>[ 31.096414] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000008 .488061] ? __die_body.cold+0x1a/0x1f # [ 30.492736] ? die+0<4>[ 31.110962] R13: ffffb7dc81377f10 R14: ffffb7dc81377f10 R15: ffff9e0403147000 x2b/0x50 # [ 30.496239] ? do_trap+0x91/0x110 # [ 30.50022<4>[ 31.125394] FS: 00007f1cb470e580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 0] ? lkdtm_BUG+0x5/0x10 # [ 30.504210] ? do_error_trap+0x90<4>[ 31.140934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 /0x110 # [ 30.508781] ? lkdtm_BUG+0x5/0x10 # [ 30.512762]<4>[ 31.153862] CR2: 00007f1cb4518000 CR3: 00000001049a8004 CR4: 00000000003706f0 ? lkdtm_BUG+0x5/0x10 # [ 30.516752] ? exc_invalid_op+0x4e/<4>[ 31.168337] Call Trace: 0x70 # [ 30.521323] ? lkdtm_BUG+0x5/0x10 # [ 30.525305] <4>[ 31.177588] ? __warn+0x80/0x110 ? asm_exc_invalid_op+0x12/0x20 # [ 30.530268] ? direct_entry<4>[ 31.187690] ? lkdtm_WARNING+0x13/0x20 +0xe0/0xe0 # [ 30.534647] ? lkdtm_BUG+0x5/0x10 # [ 30.538<4>[ 31.198389] ? report_bug+0x9e/0xc0 638] direct_entry.cold+0x2c/0x38 # [ 30.543308] full_proxy_<4>[ 31.208786] ? handle_bug+0x41/0x90 write+0x53/0x80 # [ 30.547882] vfs_write+0xe7/0x3b0 # [ 3<4>[ 31.219187] ? exc_invalid_op+0x14/0x70 0.551872] ksys_write+0x68/0xf0 # [ 30.555862] do_syscall_64<4>[ 31.229972] ? asm_exc_invalid_op+0x12/0x20 +0x30/0x40 # [ 30.560144] entry_SYSCALL_64_after_hwframe+0x6<4>[ 31.241164] ? lkdtm_BUG+0x10/0x10 1/0xc6 # [ 30.566077] RIP: 0033:0x7f4b1f33d473 # [ 30.5703<4>[ 31.251454] ? lkdtm_WARNING+0x13/0x20 57] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff <4>[ 31.262144] direct_entry.cold+0x2c/0x38 eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 0<4>[ 31.273045] full_proxy_write+0x53/0x80 0 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 <4>[ 31.283849] vfs_write+0xe7/0x3b0 89 54 24 18 # [ 30.591633] RSP: 002b:00007ffd0dfa7568 EFLAGS:<4>[ 31.294042] ksys_write+0x68/0xf0 00000246 ORIG_RAX: 0000000000000001 # [ 30.600379] RAX: ffff<4>[ 31.304251] do_syscall_64+0x30/0x40 ffffffffffda RBX: 0000000000000004 RCX: 00007f4b1f33d473 # [ <4>[ 31.314798] entry_SYSCALL_64_after_hwframe+0x61/0xc6 30.608640] RDX: 0000000000000004 RSI: 00007f4b1f231000 RDI: 0000<4>[ 31.326904] RIP: 0033:0x7f1cb4624473 000000000001 # [ 30.616892] RBP: 00007f4b1f231000 R08: 00007f<4>[ 31.337442] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 4b1f230010 R09: 0000000000000000 # [ 30.625154] R10: ffffffff<4>[ 31.364925] RSP: 002b:00007ffee93ecfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 fffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 30.6<4>[ 31.379936] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f1cb4624473 33406] R13: 0000000000000001 R14: 0000000000020000 R15: 00000000<4>[ 31.394435] RDX: 0000000000000008 RSI: 00007f1cb4518000 RDI: 0000000000000001 00020000 # [ 30.641689] Modules linked in: fuse ip_tables cro<4>[ 31.408922] RBP: 00007f1cb4518000 R08: 00007f1cb4517010 R09: 0000000000000000 <4>[ 31.423387] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 s_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio<4>[ 31.431678] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 _triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo<4>[ 31.446166] irq event stamp: 0 cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_charde<4>[ 31.456066] hardirqs last enabled at (0): [<0000000000000000>] 0x0 v cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_char<4>[ 31.469615] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 ger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compre<4>[ 31.485249] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 ss gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine video<4>[ 31.500934] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 31.514411] ---[ end trace 19f7a216b67dc046 ]--- buf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 30.696387] gsmi: Log Shutdown Reason 0x03 # [ 30.701266] ---[ end trace 19f7a216b67dc045 ]--- # [ 30.706741] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 30.711418] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 30.732702] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 30.738838] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 30.747109] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 30.755377] RBP: ffffffff9105d410 R08: 0000000000000001 R09:<6>[ 31.590378] lkdtm: Performing direct entry WARNING_MESSAGE <4>[ 31.600854] ------------[ cut here ]------------ 0000000000000001 # [ 30.763686] R10: 00000000ffffe000 R11: 3<4>[ 31.606334] Warning message trigger count: 2 fffffffffffffff R12: 0000000000000004 # [ 30.771955] R13: fff<4>[ 31.617621] WARNING: CPU: 2 PID: 707 at drivers/misc/lkdtm/bugs.c:88 lkdtm_WARNING_MESSAGE+0x20/0x30 fb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ <4>[ 31.634316] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 31.693307] CPU: 2 PID: 707 Comm: cat Tainted: G D W 5.10.182-cip35 #1 30.780219] FS: 00007f4b1f427580(0000) GS:ffff9e047ad00000(0000<4>[ 31.702167] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 31.715475] RIP: 0010:lkdtm_WARNING_MESSAGE+0x20/0x30 <4>[ 31.721423] Code: cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 31 56 e9 02 48 c7 c7 b8 92 ff 90 8d 70 01 89 35 21 56 e9 02 e8 47 c1 64 00 <0f> 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 c7 <4>[ 31.742705] RSP: 0018:ffffb7dc813dfe60 EFLAGS: 00010286 <4>[ 31.748854] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 <4>[ 31.757118] RDX: ffff9e047ad2c660 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 <4>[ 31.765380] RBP: ffffffff90ff8d5f R08: 0000000000000000 R09: 0000000000000000 <4>[ 31.773636] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000010 <4>[ 31.781901] R13: ffffb7dc813dff10 R14: ffffb7dc813dff10 R15: ffff9e04066f7000 <4>[ 31.790164] FS: 00007f7e25ce8580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 31.799498] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 31.806207] CR2: 00007f7e25af2000 CR3: 00000001032c8006 CR4: 00000000003706e0 <4>[ 31.814471] Call Trace: <4>[ 31.817495] ? __warn+0x80/0x110 <4>[ 31.821420] ? lkdtm_WARNING_MESSAGE+0x20/0x30 ) knlGS:0000000000000000 # [ 30.789602] CS: 0010 DS: 0000 ES<4>[ 31.826686] ? report_bug+0x9e/0xc0 <4>[ 31.837090] ? handle_bug+0x41/0x90 <4>[ 31.841274] ? exc_invalid_op+0x14/0x70 <4>[ 31.845848] ? asm_exc_invalid_op+0x12/0x20 <4>[ 31.850811] ? lkdtm_WARNING_MESSAGE+0x20/0x30 <4>[ 31.856091] direct_entry.cold+0x2c/0x38 <4>[ 31.860763] full_proxy_write+0x53/0x80 <4>[ 31.865339] vfs_write+0xe7/0x3b0 <4>[ 31.869332] ksys_write+0x68/0xf0 <4>[ 31.873323] do_syscall_64+0x30/0x40 <4>[ 31.877608] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 31.883541] RIP: 0033:0x7f7e25bfe473 <4>[ 31.887823] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 31.909102] RSP: 002b:00007ffebd9da5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 31.917853] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007f7e25bfe473 : 0000 CR0: 0000000080050033 # [ 30.796322] CR2: 00007f4b1f23<4>[ 31.926119] RDX: 0000000000000010 RSI: 00007f7e25af2000 RDI: 0000000000000001 1000 CR3: 0000000104036003 CR4: 00000000003706e0 # BUG: saw 'ke<4>[ 31.940596] RBP: 00007f7e25af2000 R08: 00007f7e25af1010 R09: 0000000000000000 <4>[ 31.955076] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 31.963330] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 31.971599] irq event stamp: 0 <4>[ 31.975322] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 31.982616] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 31.992046] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 32.001477] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 32.008769] ---[ end trace 19f7a216b67dc047 ]--- rnel BUG at': ok ok 2 selftests: lkdtm: BUG.sh # selftests: lkdtm: WARNING.sh # [ 30.879961] lkdtm: Performing direct entry WARNING # [ 30.886712] ------------[ cut here ]------------ # [ 30.898381] WARNING: CPU: 0 PID: 672 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x13/0x20 # [ 30.914322] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i<6>[ 32.086173] lkdtm: Performing direct entry EXCEPTION <1>[ 32.094684] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 32.102758] #PF: supervisor write access in kernel mode <1>[ 32.108882] #PF: error_code(0x0002) - not-present page <6>[ 32.114908] PGD 0 P4D 0 <4>[ 32.118025] Oops: 0002 [#2] SMP PTI <4>[ 32.122200] CPU: 3 PID: 739 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 32.131045] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 32.138144] RIP: 0010:lkdtm_EXCEPTION+0x5/0x20 <4>[ 32.143395] Code: 48 c7 c7 b8 92 ff 90 8d 70 01 89 35 21 56 e9 02 e8 47 c1 64 00 0f 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 04 25 00 00 00 00 00 00 00 00 c3 cc cc cc cc 66 66 2e 0f 1f 84 <4>[ 32.164679] RSP: 0018:ffffb7dc8145fe60 EFLAGS: 00010286 <4>[ 32.170807] RAX: ffffffff8fb795a0 RBX: 0000000000000004 RCX: 0000000000000000 <4>[ 32.179060] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffffffff90b7e880 <4>[ 32.187322] RBP: ffffffff90eed2a7 R08: 0000000000000000 R09: 0000000000000000 <4>[ 32.195584] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 32.203844] R13: ffffb7dc8145ff10 R14: ffffb7dc8145ff10 R15: ffff9e0405d98000 <4>[ 32.212106] FS: 00007f5caf0ff580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 32.221437] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.228143] CR2: 0000000000000000 CR3: 0000000106562006 CR4: 00000000003706e0 <4>[ 32.236404] Call Trace: 2c< i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight4>[ 32.239426] ? __die_body.cold+0x1a/0x1f <4>[ 32.250313] ? no_context+0x177/0x380 <4>[ 32.254693] ? exc_page_fault+0x53/0x170 <4>[ 32.259363] ? asm_exc_page_fault+0x1e/0x30 <4>[ 32.264323] ? lkdtm_WARNING_MESSAGE+0x30/0x30 <4>[ 32.269575] ? lkdtm_EXCEPTION+0x5/0x20 <4>[ 32.274139] direct_entry.cold+0x2c/0x38 <4>[ 32.278801] full_proxy_write+0x53/0x80 <4>[ 32.283373] vfs_write+0xe7/0x3b0 <4>[ 32.287362] ksys_write+0x68/0xf0 <4>[ 32.291352] do_syscall_64+0x30/0x40 <4>[ 32.295633] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 32.301556] RIP: 0033:0x7f5caf015473 <4>[ 32.305828] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 32.327105] RSP: 002b:00007fff3dbd3a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 32.335844] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f5caf015473 <4>[ 32.344104] RDX: 000000000000000a RSI: 00007f5caef09000 RDI: 0000000000000001 <4>[ 32.352365] RBP: 00007f5caef09000 R08: 00007f5caef08010 R09: 0000000000000000 <4>[ 32.360626] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 32.368888] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 30.973291] CPU: 0 PID: 672 Comm: cat Tainted: G D W<4>[ 32.377154] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 32.436155] CR2: 0000000000000000 <4>[ 32.440146] ---[ end trace 19f7a216b67dc048 ]--- <4>[ 32.445591] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 32.450259] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 32.471537] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 32.477681] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 32.485944] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 32.494206] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 32.502467] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 32.510738] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 32.519000] FS: 00007f5caf0ff580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 32.528331] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.535038] CR2: 0000000000000000 CR3: 0000000106562006 CR4: 00000000003706e0 <3>[ 32.543302] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 32.553506] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 739, name: cat <4>[ 32.562157] INFO: lockdep is turned off. <4>[ 32.566825] irq event stamp: 0 <4>[ 32.570521] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 32.577811] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 32.587238] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 32.596681] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 32.603972] CPU: 3 PID: 739 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 32.612816] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 32.619912] Call Trace: <4>[ 32.622932] dump_stack+0x77/0x9b <4>[ 32.626921] ___might_sleep.cold+0xa6/0xb6 <4>[ 32.631777] exit_signals+0x1c/0x300 <4>[ 32.636058] do_exit+0xc2/0xab0 <4>[ 32.639844] ? ksys_write+0x68/0xf0 <4>[ 32.644027] make_task_dead+0x2f/0x30 <4>[ 32.648407] rewind_stack_and_make_dead+0x17/0x20 <4>[ 32.653949] RIP: 0033:0x7f5caf015473 <4>[ 32.658227] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 32.679502] RSP: 002b:00007fff3dbd3a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 32.688249] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f5caf015473 <4>[ 32.696511] RDX: 000000000000000a RSI: 00007f5caef09000 RDI: 0000000000000001 <4>[ 32.704774] RBP: 00007f5caef09000 R08: 00007f5caef08010 R09: 0000000000000000 <4>[ 32.713033] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 32.721295] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 5.10.182-cip35 #1 # [ 30.988344] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 31.001668] RIP: 0010:lkdtm_WARNING+0x13/0x20 # [ 31.013047] Code: c0 f4 ff ff ff eb c9 0f 1f 44 00 00 0f 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 01 75 05 c3 cc cc cc cc <0f> 0b c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 31 56 # [ 31.040611] RSP: 0018:ffffb7dc81377e60 EFLAGS: 00010202 # [ 31.052916] RAX: ffffffff8fb79550 RBX: 0000000000000002 RCX: 0000000000000000 # [ 31.067513] RDX: 0000000000000000 RSI: ffff9e047ac1bf70 RDI: ffffffff90b7e860 # [ 31.081992] RBP: ffffffff90ff8d57 R08: 0000000000000000 R09: 0000000000000000 # [ 31.096414] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000008 # [ 31.110962] R13: ffffb7dc81377f10 R14: ffffb7dc81377f10 R15: ffff9e0403147000 # [ 31.125394] FS: 00007f1cb470e580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 31.140934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.153862] CR2: 00007f1cb4518000 CR3: 00000001049a8004 CR4: 00000000003706f0 # [ 31.168337] Call Trace: # [ 31.177588] ? __warn+0x80/0x110 # [ 31.187690] ? lkdtm_WARNING+0x13/0x20 # [ 31.198389] ? report_bug+0x9e/0xc0 # [ 31.208786] ? handle_bug+0x41/0x90 # [ 31.219187] ? exc_invalid_op+0x14/0x70 # [ 31.229972] ? asm_exc_invalid_op+0x12/0x20 # [ 31.241164] ? lkdtm_BUG+0x10/0x10 # [ 31.251454] ? lkdtm_WARNING+0x13/0x20 # [ 31.262144] direct_entry.cold+0x2c/0x38 # [ 31.273045] full_proxy_write+0x53/0x80 # [ 31.283849] vfs_write+0xe7/0x3b0 # [ 31.294042] ksys_write+0x68/0xf0 # [ 31.304251] do_syscall_64+0x30/0x40 # [ 31.314798] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 31.326904] RIP: 0033:0x7f1cb4624473 # [ 31.337442] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 31.364925] RSP: 002b:00007ffee93ecfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 3<6>[ 32.930095] lkdtm: Performing direct entry CORRUPT_LIST_ADD <6>[ 32.941222] lkdtm: attempting good list addition <6>[ 32.946681] lkdtm: attempting corrupted list addition 1.379936] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007<3>[ 32.952622] lkdtm: list_add() corruption not detected! f1cb4624473 # [ 31.394435] RDX: 0000000000000008 RSI: 00007f1cb4518000 RDI: 0000000000000001 # [ 31.408922] RBP: 00007f1cb4518000 R08: 00007f1cb4517010 R09: 0000000000000000 # [ 31.423387] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 31.431678] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 31.446166] irq event stamp: 0 # [ 31.456066] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 31.469615] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 31.485249] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 31.500934] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 31.514411] ---[ end trace 19f7a216b67dc046 ]--- # WARNING: saw 'WARNING:': ok ok 3 selftests: lkdtm: WARNING.sh # selftests: lkdtm: WARNING_MESSAGE.sh # [ 31.590378] lkdtm: Performing direct entry WARNING_MESSAGE # [ 31.600854] ------------[ cut here ]------------ # [ 31.606334] Warning message trigger count: 2 # [ 31.617621] WARNING: CPU: 2 PID: 707 at drivers/misc/lkdtm/bugs.c:88 lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 31.634316] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine vi<6>[ 33.116791] lkdtm: Performing direct entry CORRUPT_LIST_DEL <6>[ 33.126780] lkdtm: attempting good list removal <6>[ 33.132134] lkdtm: attempting corrupted list removal <3>[ 33.138006] lkdtm: list_del() corruption not detected! deobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 31.693307] CPU: 2 PID: 707 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 31.702167] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 31.715475] RIP: 0010:lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 31.721423] Code: cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 31 56 e9 02 48 c7 c7 b8 92 ff 90 8d 70 01 89 35 21 56 e9 02 e8 47 c1 64 00 <0f> 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 c7 # [ 31.742705] RSP: 0018:ffffb7dc813dfe60 EFLAGS: 00010286 # [ 31.748854] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 # [ 31.75<6>[ 33.211033] lkdtm: Performing direct entry STACK_GUARD_PAGE_LEADING <6>[ 33.219770] lkdtm: attempting bad read from page below current stack <0>[ 33.227191] BUG: stack guard page was hit at 000000009485032a (stack is 0000000078dff733..000000008dc02228) 7118] RDX: ffff9e047ad2c660 RSI: ffff9e047ad1bf70 RDI: ffff9e047<4>[ 33.238378] kernel stack overflow (page fault): 0000 [#3] SMP PTI <4>[ 33.251698] CPU: 2 PID: 964 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 33.260542] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 33.267643] RIP: 0010:lkdtm_STACK_GUARD_PAGE_LEADING+0x27/0x3a <4>[ 33.274447] Code: cc cc cc 0f 1f 44 00 00 53 48 c7 c7 58 96 ff 90 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 b5 de fb ff 48 c7 c7 98 96 ff 90 <8a> 43 ff 88 44 24 07 0f b6 74 24 07 5a 5b e9 9b de fb ff 0f 1f 44 <4>[ 33.295733] RSP: 0018:ffffb7dc817c7e50 EFLAGS: 00010246 <4>[ 33.301851] RAX: 0000000000000038 RBX: ffffb7dc817c4000 RCX: 0000000000000000 <4>[ 33.310113] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90ff9698 <4>[ 33.318375] RBP: ffffffff90ff8dc2 R08: 0000000000000000 R09: 0000000000000000 <4>[ 33.326637] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000019 <4>[ 33.334898] R13: ffffb7dc817c7f10 R14: ffffb7dc817c7f10 R15: ffff9e0404015000 <4>[ 33.343159] FS: 00007f2b19597580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 33.352490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.359190] CR2: ffffb7dc817c3fff CR3: 00000001040b4001 CR4: 00000000003706e0 <4>[ 33.367451] Call Trace: <4>[ 33.370468] <#DF> <4>[ 33.373002] ? __die_body.cold+0x1a/0x1f <4>[ 33.377687] ? die+0x2b/0x50 <4>[ 33.381182] ? handle_stack_overflow+0x3e/0x4d <4>[ 33.386435] ? no_context+0x24d/0x380 <4>[ 33.390812] ad1bf70 # [ 31.765380] RBP: ffffffff90ff8d5f R08: 00000000000<4>[ 33.393440] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 33.452446] ---[ end trace 19f7a216b67dc049 ]--- <4>[ 33.457885] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 33.462552] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 33.483829] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 33.489954] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 33.498216] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 33.506479] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 33.514740] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 33.523001] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 33.531264] FS: 00007f2b19597580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 33.540593] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.547300] CR2: ffffb7dc817c3fff CR3: 00000001040b4001 CR4: 00000000003706e0 00000 R09: 0000000000000000 # [ 31.773636] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000010 # [ 31.781901] R13: ffffb7dc813dff10 R14: ffffb7dc813dff10 R15: ffff9e04066f7000 # [ 31.790164] FS: 00007f7e25ce8580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 31.799498] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.806207] CR2: 00007f7e25af2000 CR3: 00000001032c8006 CR4: 00000000003706e0 # [ 31.814471] Call Trace: # [ 31.817495] ? __warn+0x80/0x110 # [ 31.821420] ? lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 31.826686] ? report_bug+0x9e/0xc0 # [ 31.837090] ? handle_bug+0x41/0x90 # [ 31.841274] ? exc_invalid_op+0x14/0x70 # [ 31.845848] ? asm_exc_invalid_op+0x12/0x20 # [ 31.850811] ? lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 31.856091] direct_entry.cold+0x2c/0x38 # [ 31.860763] full_proxy_write+0x53/0x80 # [ 31.865339] vfs_write+0xe7/0x3b0 # [ 31.869332] ksys_write<6>[ 33.647334] lkdtm: Performing direct entry STACK_GUARD_PAGE_TRAILING <6>[ 33.656222] lkdtm: attempting bad read from page above current stack <0>[ 33.663649] BUG: stack guard page was hit at 00000000e06a7205 (stack is 00000000f8669dd3..000000004bb26272) <4>[ 33.674857] kernel stack overflow (page fault): 0000 [#4] SMP PTI <4>[ 33.681955] CPU: 3 PID: 997 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 33.690799] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 33.697900] RIP: 0010:lkdtm_STACK_GUARD_PAGE_TRAILING+0x27/0x3d <4>[ 33.704803] Code: de fb ff 0f 1f 44 00 00 53 48 c7 c7 d0 96 ff 90 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 7b de fb ff 48 c7 c7 10 97 ff 90 <8a> 83 00 40 00 00 88 44 24 07 0f b6 74 24 07 5a 5b e9 5e de fb ff <4>[ 33.726079] RSP: 0018:ffffb7dc81847e50 EFLAGS: 00010246 <4>[ 33.732205] RAX: 0000000000000038 RBX: ffffb7dc81844000 RCX: 0000000000000000 <4>[ 33.740466] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffffffff90ff9710 <4>[ 33.748729] RBP: ffffffff90ff8ddb R08: 0000000000000000 R09: 0000000000000000 <4>[ 33.756991] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001a <4>[ 33.765252] R13: ffffb7dc81847f10 R14: ffffb7dc81847f10 R15: ffff9e040594a000 <4>[ 33.773516] FS: 00007fbb169b9580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 33.782846] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.789553] CR2: ffffb7dc81848000 CR3: 00000001034ee006 CR4: 00000000003706e0 <4>[ 33.797814] Call Trace: <4>[ 33.800831] <#DF> <4>[ 33.803365] ? __die_body.cold+0x1a/0x1f <4>[ 33.808036] ? die+0x2b/0x50 <4>[ 33.811541] ? handle_stack_overflow+0x3e/0x4d <4>[ 33.816795] ? no_context+0x24d/0x380 <4>[ 33.821170] +0x68/0xf0 # [ 31.873323] do_syscall_64+0x30/0x40 # [ 31.<4>[ 33.823799] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 33.882805] ---[ end trace 19f7a216b67dc04a ]--- <4>[ 33.888244] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 33.892915] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 33.914184] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 33.920310] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 33.928573] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 33.936835] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 33.945097] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 33.953358] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 33.961619] FS: 00007fbb169b9580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 33.970950] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.977681] CR2: ffffb7dc81848000 CR3: 00000001034ee006 CR4: 00000000003706e0 <3>[ 33.985942] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 33.996147] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 997, name: cat <4>[ 34.004788] INFO: lockdep is turned off. <4>[ 34.009455] irq event stamp: 0 <4>[ 34.013152] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 34.020443] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 34.029872] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 34.039289] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 34.046580] CPU: 3 PID: 997 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 34.055426] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 34.062522] Call Trace: <4>[ 34.065541] dump_stack+0x77/0x9b <4>[ 34.069532] ___might_sleep.cold+0xa6/0xb6 <4>[ 34.074398] exit_signals+0x1c/0x300 <4>[ 34.078680] do_exit+0xc2/0xab0 <4>[ 34.082476] ? ksys_write+0x68/0xf0 <4>[ 34.086683] make_task_dead+0x2f/0x30 <4>[ 34.091060] rewind_stack_and_make_dead+0x17/0x20 <4>[ 34.096595] RIP: 0033:0x7fbb168cf473 <4>[ 34.100867] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 34.122133] RSP: 002b:00007fff7b5382b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 34.130881] RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007fbb168cf473 <4>[ 34.139143] RDX: 000000000000001a RSI: 00007fbb167c3000 RDI: 0000000000000001 <4>[ 34.147404] RBP: 00007fbb167c3000 R08: 00007fbb167c2010 R09: 0000000000000000 <4>[ 34.155681] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 34.163945] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 877608] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 31.883541] RIP: 0033:0x7f7e25bfe473 # [ 31.887823] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 31.909102] RSP: 002b:00007ffebd9da5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 31.917853] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007f7e25bfe473 # [ 31.926119] RDX: 0000000000000010 RSI: 00007f7e25af2000 RDI: 0000000000000001 # [ 31.940596] RBP: 00007f7e25af2000 R08: 00007f7e25af1010 R09: 0000000000000000 # [ 31.955076] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 31.963330] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 31.971599] irq event stamp: 0 # [ 31.975322] hardirqs last enable<6>[ 34.254813] lkdtm: Performing direct entry UNSET_SMEP d at (0): [<0000000000000000>] 0x0 # [ 31.982616] hardirqs la<6>[ 34.265224] lkdtm: trying to clear SMEP normally st disabled at (0): [] copy_process+0x664/0x1c<4>[ 34.276900] ------------[ cut here ]------------ 60 # [ 31.992046] softirqs last enabled at (0): [[ 34.288569] pinned CR4 bits changed: 0x100000!? 0fd844>] copy_process+0x664/0x1c60 # [ 32.001477] softirqs la<4>[ 34.300146] WARNING: CPU: 0 PID: 1033 at arch/x86/kernel/cpu/common.c:392 native_write_cr4+0x45/0x60 st disabled at (0): [<0000000000000000>] 0x0 # [ 32.008769] -<4>[ 34.316857] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight --[ end trace 19f7a216b67dc047 ]--- # WARNING_MESSAGE: saw 'mes<4>[ 34.375825] CPU: 0 PID: 1033 Comm: cat Tainted: G D W 5.10.182-cip35 #1 sage trigger': ok ok 4 selftests: lkdtm: WARNING_MESSAGE.sh # <4>[ 34.390981] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 selftests: lkdtm: EXCEPTION.sh # Killed # [ 32.086173] lkdtm<4>[ 34.404307] RIP: 0010:native_write_cr4+0x45/0x60 : Performing direct entry EXCEPTION # [ 32.094684] BUG: kerne<4>[ 34.415990] Code: 39 c2 75 2d 48 85 f6 75 05 c3 cc cc cc cc 80 3d e3 33 46 02 00 75 f2 48 c7 c7 68 73 ef 90 c6 05 d3 33 46 02 01 e8 d2 30 10 01 <0f> 0b c3 cc cc cc cc 48 89 d6 48 81 e7 ff f7 ce ff 48 31 c6 48 09 l NULL pointer dereference, address: 0000000000000000 # [ 32.<4>[ 34.443490] RSP: 0018:ffffb7dc818cfe48 EFLAGS: 00010286 102758] #PF: supervisor write access in kernel mode # [ 32.10<4>[ 34.455845] RAX: 0000000000000000 RBX: 00000000002706f0 RCX: 0000000000000000 8882] #PF: error_code(0x0002) - not-present page # [ 32.11490<4>[ 34.470411] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 8] PGD 0 P4D 0 # [ 32.118025] Oops: 0002 [#2] SMP PTI # [ <4>[ 34.484835] RBP: ffffffff90ff8df5 R08: 0000000000000000 R09: 0000000000000000 32.122200] CPU: 3 PID: 739 Comm: cat Tainted: G D W <4>[ 34.499392] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b 5.10.182-cip35 #1 # [ 32.131045] Hardware name: Google Ramm<4>[ 34.513856] R13: ffffb7dc818cff10 R14: ffffb7dc818cff10 R15: ffff9e0405b1d000 us/Rammus, BIOS 09/04/2020 # [ 32.138144] RIP: 0010:lkdtm_EX<4>[ 34.528395] FS: 00007f8b15a89580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 CEPTION+0x5/0x20 # [ 32.143395] Code: 48 c7 c7 b8 92 ff 90 8d<4>[ 34.543917] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 70 01 89 35 21 56 e9 02 e8 47 c1 64 00 0f 0b c3 cc cc cc cc 66 <4>[ 34.556866] CR2: 00007f8b15893000 CR3: 0000000105ec0002 CR4: 00000000003706f0 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 04 25 00 00 00 00 00<4>[ 34.571325] Call Trace: 00 00 00 c3 cc cc cc cc 66 66 2e 0f 1f 84 # [ 32.164679] RSP<4>[ 34.580577] ? __warn+0x80/0x110 : 0018:ffffb7dc8145fe60 EFLAGS: 00010286 # [ 32.170807] RAX: <4>[ 34.590678] ? native_write_cr4+0x45/0x60 ffffffff8fb795a0 RBX: 0000000000000004 RCX: 0000000000000000 # <4>[ 34.601704] ? report_bug+0x9e/0xc0 [ 32.179060] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: <4>[ 34.612123] ? handle_bug+0x41/0x90 ffffffff90b7e880 # [ 32.187322] RBP: ffffffff90eed2a7 R08: 00<4>[ 34.622553] ? exc_invalid_op+0x14/0x70 00000000000000 R09: 0000000000000000 # [ 32.195584] R10: 0000<4>[ 34.633338] ? asm_exc_invalid_op+0x12/0x20 0000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a # [ <4>[ 34.644558] ? native_write_cr4+0x45/0x60 32.203844] R13: ffffb7dc8145ff10 R14: ffffb7dc8145ff10 R15: ffff<4>[ 34.655530] ? native_write_cr4+0x45/0x60 9e0405d98000 # [ 32.212106] FS: 00007f5caf0ff580(0000) GS:ff<4>[ 34.666557] lkdtm_UNSET_SMEP.cold+0x1d/0x103 ff9e047ad80000(0000) knlGS:0000000000000000 # [ 32.221437] CS<4>[ 34.677920] direct_entry.cold+0x2c/0x38 : 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 32.228143<4>[ 34.688859] full_proxy_write+0x53/0x80 ] CR2: 0000000000000000 CR3: 0000000106562006 CR4: 0000000000370<4>[ 34.699623] vfs_write+0xe7/0x3b0 6e0 # [ 32.236404] Call Trace: # [ 32.239426] ? __die_bod<4>[ 34.709923] ksys_write+0x68/0xf0 y.cold+0x1a/0x1f # [ 32.250313] ? no_context+0x177/0x380 # <4>[ 34.720069] do_syscall_64+0x30/0x40 [ 32.254693] ? exc_page_fault+0x53/0x170 # [ 32.259363] ?<4>[ 34.730632] entry_SYSCALL_64_after_hwframe+0x61/0xc6 asm_exc_page_fault+0x1e/0x30 # [ 32.264323] ? lkdtm_WARNING<4>[ 34.742913] RIP: 0033:0x7f8b1599f473 _MESSAGE+0x30/0x30 # [ 32.269575] ? lkdtm_EXCEPTION+0x5/0x20<4>[ 34.753416] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 32.274139] direct_entry.cold+0x2c/0x38 # [ 32.278801<4>[ 34.780911] RSP: 002b:00007ffeab0a3058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 ] full_proxy_write+0x53/0x80 # [ 32.283373] vfs_write+0xe7/<4>[ 34.795903] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f8b1599f473 0x3b0 # [ 32.287362] ksys_write+0x68/0xf0 # [ 32.291352] <4>[ 34.810349] RDX: 000000000000000b RSI: 00007f8b15893000 RDI: 0000000000000001 do_syscall_64+0x30/0x40 # [ 32.295633] entry_SYSCALL_64_aft<4>[ 34.824901] RBP: 00007f8b15893000 R08: 00007f8b15892010 R09: 0000000000000000 er_hwframe+0x61/0xc6 # [ 32.301556] RIP: 0033:0x7f5caf015473 <4>[ 34.839330] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 32.305828] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c<4>[ 34.853873] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14<4>[ 34.868325] irq event stamp: 0 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 4<4>[ 34.878283] hardirqs last enabled at (0): [<0000000000000000>] 0x0 8 83 ec 28 48 89 54 24 18 # [ 32.327105] RSP: 002b:00007fff3d<4>[ 34.891878] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 bd3a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 32.335<4>[ 34.907438] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 844] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f5caf<4>[ 34.923109] softirqs last disabled at (0): [<0000000000000000>] 0x0 015473 # [ 32.344104] RDX: 000000000000000a RSI: 00007f5caef0<4>[ 34.936596] ---[ end trace 19f7a216b67dc04b ]--- 9000 RDI: 0000000000000001 # [ 32.352365] RBP: 00007f5caef090<6>[ 34.948317] lkdtm: ok: SMEP did not get cleared 00 R08: 00007f5caef08010 R09: 0000000000000000 # [ 32.360626]<6>[ 34.959867] lkdtm: trying to clear SMEP with call gadget R10: fffffffffffffbc5 R11: 0000000000000246 R12: 00000000000000<6>[ 34.972305] lkdtm: ok: SMEP removal was reverted 01 # [ 32.368888] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 32.377154] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 32.436155] CR2: 0000000000000000 # [ 32.440146] ---[ end trace 19f7a216b67dc048 ]--- # [ 32.445591] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 32.450259] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff<6>[ 35.070405] lkdtm: Performing direct entry DOUBLE_FAULT <3>[ 35.077067] lkdtm: XFAIL: this test is ia32-only ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 32.471537] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 32.477681] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 32.485944] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 32.494206] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 32.502467] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 32.510738] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 32.519000] FS: 00007f5caf0ff580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 32.528331] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 32.535038] CR2: 0000000<6>[ 35.155826] lkdtm: Performing direct entry CORRUPT_PAC <3>[ 35.163181] lkdtm: XFAIL: this test is arm64-only 000000000 CR3: 0000000106562006 CR4: 00000000003706e0 # [ 32.543302] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 32.553506] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 739, name: cat # [ 32.562157] INFO: lockdep is turned off. # [ 32.566825] irq event stamp: 0 # [ 32.570521] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 32.577811] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 32.587238] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 32.596681] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 32.603972] CPU: 3 PID: 739 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 3<6>[ 35.241050] lkdtm: Performing direct entry UNALIGNED_LOAD_STORE_WRITE 2.612816] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <3>[ 35.250848] lkdtm: XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS # [ 32.619912] Call Trace: # [ 32.622932] dump_stack+0x77/0x9b # [ 32.626921] ___might_sleep.cold+0xa6/0xb6 # [ 32.631777] exit_signals+0x1c/0x300 # [ 32.636058] do_exit+0xc2/0xab0 # [ 32.639844] ? ksys_write+0x68/0xf0 # [ 32.644027] make_task_dead+0x2f/0x30 # [ 32.648407] rewind_stack_and_make_dead+0x17/0x20 # [ 32.653949] RIP: 0033:0x7f5caf015473 # [ 32.658227] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 32.679502] RSP: 002b:00007fff3dbd3a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 32.688249] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f5caf015473 # [ 32.696511] RDX: 000000000000000a RSI: 00007f5caef09000 RDI: 0000000000000001 # [ 32.704774] RBP: 00007f5caef09000 R08: 00007f5caef08010 R09: 0000000000000000 # [ 32.713033] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 32.721295] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # EXCEPTION: saw 'call trace:': ok ok 5 selftests: lkdtm: EXCEPTION.sh # selftests: lkdtm: LOOP.sh # Skipping LOOP: Hangs the system ok 6 selftests: lkdtm: LOOP.sh # SKIP # selftests: lkdtm: EXHAUST_STACK.sh # Skipping EXHAUST_STACK: Corrupts memory on failure ok 7 selftests: lkdtm: EXHAUST_STACK.sh # SKIP # selftests: lkdtm: CORRUPT_STACK.sh # Skipping CORRUPT_STACK: Crashes entire system on success ok 8 selftests: lkdtm: CORRUPT_STACK.sh # SKIP # selftests: lkdtm: CORRUPT_STACK_STRONG.sh # Skipping CORRUPT_STACK_STRONG: Crashes entire system on success ok 9 selftests: lkdtm: CORRUPT_STACK_STRO<6>[ 35.428517] lkdtm: Performing direct entry READ_AFTER_FREE NG.sh # SKIP # selftests: lkdtm: CORRUPT_LIST_ADD.sh # [ 32.<6>[ 35.439277] lkdtm: Value in memory before free: 12345678 930095] lkdtm: Performing direct entry CORRUPT_LIST_ADD # [ 3<6>[ 35.451720] lkdtm: Attempting bad read from freed memory 2.941222] lkdtm: attempting good list addition # [ 32.946681]<6>[ 35.464142] lkdtm: Memory was not poisoned lkdtm: attempting corrupted list addition # [ 32.952622] lkdtm: list_add() corruption not detected! # CORRUPT_LIST_ADD: missing 'list_add corruption': [FAIL] not ok 10 selftests: lkdtm: CORRUPT_LIST_ADD.sh # exit=1 # selftests: lkdtm: CORRUPT_LIST_DEL.sh # [ 33.116791] lkdtm: Performing direct entry CORRUPT_LIST_DEL # [ 33.126780] lkdtm: attempting good list removal # [ 33.132134] lkdtm: attempting corrupted list removal # [ 33.138006] lkdtm: list_del() corruption not detected! # CORRUPT_LIST_DEL: missing 'list_del corruption': [FAIL] not ok 11 selftests: lkdtm: CORRUPT_LIST_DEL.sh # exit=1 # selftests: lkdtm: STACK_GUARD_PAGE_LEADING.sh # Segmentation fault # [ 33.211033] lkdtm: Performing direct entry STACK_GUARD_PAGE_LEADING # [ 33.219770] lkdtm: attempting bad read from page below current stack # [ 33.227191] BUG: stack guard page was hit at 000000009485032a (stack is 0000000078dff733..000000008dc02228) # [ 33.238378] kernel stack overflow (page fault): 0000 [#3] SMP PTI<6>[ 35.574394] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE <6>[ 35.581655] lkdtm: Value in memory before free: 12345678 <6>[ 35.587889] lkdtm: Attempting to read from freed memory <6>[ 35.594026] lkdtm: Buddy page was not poisoned # [ 33.251698] CPU: 2 PID: 964 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 33.260542] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 33.267643] RIP: 0010:lkdtm_STACK_GUARD_PAGE_LEADING+0x27/0x3a # [ 33.274447] Code: cc cc cc 0f 1f 44 00 00 53 48 c7 c7 58 96 ff 90 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 b5 de fb ff 48 c7 c7 98 96 ff 90 <8a> 43 ff 88 44 24 07 0f b6 74 24 07 5a 5b e9 9b de fb ff 0f 1f 44 # [ 33.295733] RSP: 0018:ffffb7dc817c7e50 EFLAGS: 00010246 # [ 33.301851] RAX: 0000000000000038 RBX: ffffb7dc817c4000 RCX: 0000000000000000 # [ 33.310113] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90ff9698 # [ 33.318375] RBP: ffffffff90ff8dc2 R08: 0000000000000000 R09: 0000000000000000 # [<6>[ 35.671181] lkdtm: Performing direct entry SLAB_FREE_DOUBLE <6>[ 35.680431] lkdtm: Attempting double slab free ... 33.326637] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000019 # [ 33.334898] R13: ffffb7dc817c7f10 R14: ffffb7dc817c7f10 R15: ffff9e0404015000 # [ 33.343159] FS: 00007f2b19597580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 33.352490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.359190] CR2: ffffb7dc817c3fff CR3: 00000001040b4001 CR4: 00000000003706e0 # [ 33.367451] Call Trace: # [ 33.370468] <#DF> # [ 33.373002] ? __die_body.cold+0x1a/0x1f # [ 33.377687] ? die+0x2b/0x50 # [ 33.381182] ? handle_stack_overflow+0x3e/0x4d # [ 33.386435] ? no_context+0x24d/0x380 # [ 33.390812] # [ 33.393440] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_se<6>[ 35.770741] lkdtm: Performing direct entry SLAB_FREE_CROSS <6>[ 35.779552] lkdtm: Attempting cross-cache slab free ... nsorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 33.452446] ---[ end trace 19f7a216b67dc049 ]--- # [ 33.457885] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 33.462552] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 33.483829] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 33.489954] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 00<6>[ 35.857784] lkdtm: Performing direct entry SLAB_FREE_PAGE 00000000000000 # [ 33.498216] RDX: 0000000000000000 RSI: ffff<6>[ 35.866638] lkdtm: Attempting non-Slab slab free ... 9e047ad1bf70 RDI: ffffffff90b7e850 # [ 33.506479] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 33.514740] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 33.523001] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 33.531264] FS: 00007f2b19597580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 33.540593] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.547300] CR2: ffffb7dc817c3fff CR3: 00000001040b4001 CR4: 00000000003706e0 # STACK_GUARD_PAGE_LEADING: saw 'call trace:': ok ok 12 selftests: lkdtm: STACK_GUARD_PAGE_LEADING.sh # selftests: lkdtm: STACK_GUARD_PAGE_TRAILING.sh # Segmentation fault # [ 33.647334] lkdtm: Performing direct entry STACK_GUARD_PAGE_TRAILING # [ 33.656222] lkdtm: attempting bad read from page above current stack # [ 33.663649] BUG: stack guard page was hit at 00000000e06a7205 (stack is 00000000f8669dd3..000000004bb26272) # [ 33.674857] kernel stack overflow (page fault): 0000 [#4] SMP PTI # [ 33.681955] CPU: 3 PID: 997 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 33.690799] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 33.697900] RIP: 0010:lkdtm_STACK_GUARD_PAGE_TRAILING+0x27/0x3d # [ 33.704803] Code: de fb ff 0f 1f 44 00 00 53 48 c7 c7 d0 96 ff 90 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 7b de fb ff 48 c7 c7 10 97 ff 90 <8a> 83 00 40 00 00 88 44 24 07 0f b6 74 24 07 5a 5b e9 5e de fb ff # [ 33.726079] RSP: 0018:ffffb7dc81847e50 EFLAGS: 00010246 # [ 33.732205] RAX: 0000000000000038 RBX: ffffb7dc81844000 RCX: 0000000000000000 # [ 33.740466] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffffffff90ff9710 # [ 33.748729] RBP: ffffffff90ff8ddb R08: 0000000000000000 R09: 0000000000000000 # [ 33.756991] R10: 00000000ffffe000 R11: 3<6>[ 36.057526] lkdtm: Performing direct entry EXEC_DATA <6>[ 36.064751] lkdtm: attempting ok execution at ffffffff8fb79910 <6>[ 36.071564] lkdtm: attempting bad execution at ffffffff92a0ebe0 fffffffffffffff R12: 000000000000001a # [ 33.765252] R13: fff<2>[ 36.078508] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 36.093369] BUG: unable to handle page fault for address: ffffffff92a0ebe0 <1>[ 36.101339] #PF: supervisor instruction fetch in kernel mode <1>[ 36.107949] #PF: error_code(0x0011) - permissions violation <6>[ 36.114464] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 8000000122e000e3 <4>[ 36.122534] Oops: 0011 [#5] SMP PTI <4>[ 36.126731] CPU: 2 PID: 1540 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 36.135681] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 36.142782] RIP: 0010:data_area+0x0/0x40 <4>[ 36.147449] Code: ff ff 00 43 b1 04 04 9e ff ff 00 42 b1 04 04 9e ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 <4>[ 36.168735] RSP: 0018:ffffb7dc820cfe48 EFLAGS: 00010246 <4>[ 36.174860] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 36.183121] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 <4>[ 36.191381] RBP: ffffffff92a0ebe0 R08: 0000000000000000 R09: 0000000000000000 <4>[ 36.199643] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 36.207906] R13: ffffb7dc820cff10 R14: ffffb7dc820cff10 R15: ffff9e0402fd6000 <4>[ 36.216167] FS: 00007f6450697580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 36.225498] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 36.232205] CR2: ffffffff92a0ebe0 CR3: 0000000102eb6005 CR4: 00000000003706e0 <4>[ 36.240467] Call Trace: <4>[ 36.243489] ? __die_body.cold+0x1a/0x1f <4>[ 36.248160] ? no_context+0x177/0x380 <4>[ 36.252539] ? exc_page_fault+0xd7/0x170 <4>[ 36.257209] ? asm_exc_page_fault+0x1e/0x30 <4>[ 36.262173] ? execute_location+0x45/0x56 <4>[ 36.266938] ? direct_entry.cold+0x2c/0x38 <4>[ 36.271805] ? full_proxy_write+0x53/0x80 <4>[ 36.276570] ? vfs_write+0xe7/0x3b0 <4>[ 36.280753] ? ksys_write+0x68/0xf0 <4>[ 36.284938] ? do_syscall_64+0x30/0x40 <4>[ 36.289410] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 fb7dc81847f10 R14: ffffb7dc81847f10 R15: ffff9e040594a000 # [ <4>[ 36.295537] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 36.354535] CR2: ffffffff92a0ebe0 <4>[ 36.358523] ---[ end trace 19f7a216b67dc04c ]--- <4>[ 36.363963] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 36.368630] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 36.389908] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 36.396034] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 36.404296] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 36.412557] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 36.420819] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 36.429080] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 36.437343] FS: 00007f6450697580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 36.446679] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 36.453387] CR2: ffffffff92a0ebe0 CR3: 0000000102eb6005 CR4: 00000000003706e0 <3>[ 36.461650] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 36.471846] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1540, name: cat <4>[ 36.480591] INFO: lockdep is turned off. <4>[ 36.485260] irq event stamp: 0 <4>[ 36.488951] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 36.496242] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 36.505681] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 36.515107] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 36.522398] CPU: 2 PID: 1540 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 36.531339] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 36.538436] Call Trace: <4>[ 36.541454] dump_stack+0x77/0x9b <4>[ 36.545444] ___might_sleep.cold+0xa6/0xb6 <4>[ 36.550309] exit_signals+0x1c/0x300 <4>[ 36.554580] do_exit+0xc2/0xab0 <4>[ 36.558376] ? ksys_write+0x68/0xf0 <4>[ 36.562562] make_task_dead+0x2f/0x30 <4>[ 36.566939] rewind_stack_and_make_dead+0x17/0x20 <4>[ 36.572482] RIP: 0033:0x7f64505ad473 <4>[ 36.576763] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 36.598038] RSP: 002b:00007fff23504b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 36.606785] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f64505ad473 <4>[ 36.615046] RDX: 000000000000000a RSI: 00007f64504a1000 RDI: 0000000000000001 <4>[ 36.623307] RBP: 00007f64504a1000 R08: 00007f64504a0010 R09: 0000000000000000 <4>[ 36.631568] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 36.639829] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 33.773516] FS: 00007fbb169b9580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 33.782846] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.789553] CR2: ffffb7dc81848000 CR3: 00000001034ee006 CR4: 00000000003706e0 # [ 33.797814] Call Trace: # [ 33.800831] <#DF> # [ 33.803365] ? __die_body.cold+0x1a/0x1f # [ 33.808036] ? die+0x2b/0x50 # [ 33.811541] ? handle_stack_overflow+0x3e/0x4d # [ 33.816795] ? no_context+0x24d/0x380 # [ 33.821170] # [ 33.823799] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros<6>[ 36.745683] lkdtm: Performing direct entry EXEC_STACK <6>[ 36.753511] lkdtm: attempting ok execution at ffffffff8fb79910 <6>[ 36.760331] lkdtm: attempting bad execution at ffffb7dc8213fe18 <2>[ 36.767249] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 36.775906] BUG: unable to handle page fault for address: ffffb7dc8213fe18 <1>[ 36.783869] #PF: supervisor instruction fetch in kernel mode <1>[ 36.790479] #PF: error_code(0x0011) - permissions violation _k[ 36.796993] PGD 100000067 P4D 100000067 PUD 100231067 PMD 10654d067 PTE 8000000105be7063 <4>[ 36.812547] Oops: 0011 [#6] SMP PTI <4>[ 36.816733] CPU: 3 PID: 1577 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 36.825681] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 36.832778] RIP: 0010:0xffffb7dc8213fe18 <4>[ 36.837438] Code: 00 00 18 fe 13 82 dc b7 ff ff 51 d6 20 90 ff ff ff ff 20 00 00 00 00 00 00 00 1e 8f ff 90 ff ff ff ff 80 d7 20 90 ff ff ff ff <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 <4>[ 36.858714] RSP: 0018:ffffb7dc8213fdf8 EFLAGS: 00010246 <4>[ 36.864839] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 36.873101] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 <4>[ 36.881361] RBP: ffffb7dc8213fe18 R08: 0000000000000000 R09: 0000000000000000 <4>[ 36.889622] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b <4>[ 36.897885] R13: ffffb7dc8213ff10 R14: ffffb7dc8213ff10 R15: ffff9e0402a55000 <4>[ 36.906148] FS: 00007fde75043580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 36.915477] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 36.922183] CR2: ffffb7dc8213fe18 CR3: 000000010274a005 CR4: 00000000003706e0 <4>[ 36.930444] Call Trace: <4>[ 36.933466] ? __die_body.cold+0x1a/0x1f <4>[ 36.938138] ? no_context+0x177/0x380 <4>[ 36.942518] ? exc_page_fault+0xd7/0x170 <4>[ 36.947186] ? asm_exc_page_fault+0x1e/0x30 <4>[ 36.952150] ? execute_location+0x45/0x56 <4>[ 36.956917] ? lkdtm_EXEC_STACK+0x26/0x44 <4>[ 36.961682] ? direct_entry.cold+0x2c/0x38 <4>[ 36.966547] ? full_proxy_write+0x53/0x80 <4>[ 36.971313] ? vfs_write+0xe7/0x3b0 <4>[ 36.975488] ? ksys_write+0x68/0xf0 <4>[ 36.979688] ? do_syscall_64+0x30/0x40 <4>[ 36.984154] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 c04a ]--- # [ 33.888244] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ <4>[ 36.990280] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 37.049277] CR2: ffffb7dc8213fe18 <4>[ 37.053256] ---[ end trace 19f7a216b67dc04d ]--- <4>[ 37.058702] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 37.063372] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 37.084640] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 37.090765] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 37.099026] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 37.107286] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 37.115548] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 37.123809] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 37.132071] FS: 00007fde75043580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 37.141401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.148108] CR2: ffffb7dc8213fe18 CR3: 000000010274a005 CR4: 00000000003706e0 33.892915] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 33.914184] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 33.920310] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 33.928573] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 33.936835] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 33.945097] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 33.953358] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 33.961619] FS: 00007fbb169b9580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 33.970950] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.977681] CR2: ffffb7dc81848000 CR3: 00000001034ee006 CR4: 00000000003706e0 # [ 33.985942] BUG: sleeping function called from invalid context at include/linu<6>[ 37.251185] lkdtm: Performing direct entry EXEC_KMALLOC <6>[ 37.261982] lkdtm: attempting ok execution at ffffffff8fb79910 <6>[ 37.268798] lkdtm: attempting bad execution at ffff9e0404006600 <2>[ 37.275708] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 37.284403] BUG: unable to handle page fault for address: ffff9e0404006600 <1>[ 37.292374] #PF: supervisor instruction fetch in kernel mode <1>[ 37.298986] #PF: error_code(0x0011) - permissions violation <6>[ 37.305500] PGD 123001067 P4D 123001067 PUD 100236063 PMD 1049e3063 PTE 8000000104006063 x/percpu-rwsem.h:49 # [ 33.996147] in_atomic(): 0, irqs_disab<4>[ 37.314833] Oops: 0011 [#7] SMP PTI <4>[ 37.325230] CPU: 3 PID: 1613 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 37.334171] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 37.341270] RIP: 0010:0xffff9e0404006600 <4>[ 37.345937] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10 c0 75 02 04 9e ff ff 00 00 00 00 00 00 00 00 <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 <4>[ 37.367212] RSP: 0018:ffffb7dc821ffe38 EFLAGS: 00010246 <4>[ 37.373336] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 37.381598] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 <4>[ 37.389859] RBP: ffff9e0404006600 R08: 0000000000000000 R09: 0000000000000000 <4>[ 37.398120] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d <4>[ 37.406382] R13: ffffb7dc821fff10 R14: ffffb7dc821fff10 R15: ffff9e04065b3000 <4>[ 37.414645] FS: 00007f953a100580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 37.423976] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.430687] CR2: ffff9e0404006600 CR3: 0000000105948001 CR4: 00000000003706e0 <4>[ 37.438948] Call Trace: <4>[ 37.441967] ? __die_body.cold+0x1a/0x1f <4>[ 37.446638] ? no_context+0x177/0x380 <4>[ 37.451017] ? exc_page_fault+0xd7/0x170 <4>[ 37.455687] ? asm_exc_page_fault+0x1e/0x30 <4>[ 37.460653] ? execute_location+0x45/0x56 <4>[ 37.465418] ? lkdtm_EXEC_KMALLOC+0x2c/0x40 <4>[ 37.470378] ? direct_entry.cold+0x2c/0x38 <4>[ 37.475234] ? full_proxy_write+0x53/0x80 <4>[ 37.480001] ? vfs_write+0xe7/0x3b0 <4>[ 37.484177] ? ksys_write+0x68/0xf0 <4>[ 37.488360] ? do_syscall_64+0x30/0x40 <4>[ 37.492834] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 led(): 1, non_block: 0, pid: 997, name: cat # [ 34.004788] IN<4>[ 37.498961] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 37.557961] CR2: ffff9e0404006600 <4>[ 37.561950] ---[ end trace 19f7a216b67dc04e ]--- <4>[ 37.567394] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 37.572064] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 37.593330] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 37.599455] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 37.607732] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 37.615993] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 37.624254] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 37.632515] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 37.640777] FS: 00007f953a100580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 37.650097] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.656806] CR2: ffff9e0404006600 CR3: 0000000105948001 CR4: 00000000003706e0 <3>[ 37.665069] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 37.675271] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1613, name: cat <4>[ 37.684019] INFO: lockdep is turned off. <4>[ 37.688686] irq event stamp: 0 <4>[ 37.692384] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 37.699684] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 37.709110] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 37.718535] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 37.725825] CPU: 3 PID: 1613 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 37.734765] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 37.741862] Call Trace: <4>[ 37.744879] dump_stack+0x77/0x9b <4>[ 37.748860] ___might_sleep.cold+0xa6/0xb6 <4>[ 37.753734] exit_signals+0x1c/0x300 <4>[ 37.758014] do_exit+0xc2/0xab0 <4>[ 37.761809] ? ksys_write+0x68/0xf0 <4>[ 37.765992] make_task_dead+0x2f/0x30 <4>[ 37.770361] rewind_stack_and_make_dead+0x17/0x20 <4>[ 37.775895] RIP: 0033:0x7f953a016473 <4>[ 37.780174] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 37.801448] RSP: 002b:00007fff774ad5c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 37.810194] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f953a016473 <4>[ 37.818454] RDX: 000000000000000d RSI: 00007f9539f0a000 RDI: 0000000000000001 <4>[ 37.826714] RBP: 00007f9539f0a000 R08: 00007f9539f09010 R09: 0000000000000000 <4>[ 37.835017] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 37.843278] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 FO: lockdep is turned off. # [ 34.009455] irq event stamp: 0 # [ 34.013152] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 34.020443] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 34.029872] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 34.039289] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 34.046580] CPU: 3 PID: 997 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 34.055426] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 34.062522] Call Trace: # [ 34.065541] dump_stack+0x77/0x9b # [ 34.069532] ___might_sleep.cold+0xa6/0xb6 # [ 34.074398] exit_signals+0x1c/0x300 # [ 34.078680] do_exit+0xc2/0xab0 # [ 34.082476] ? ksys_write+0x68/0xf0 # [ 34.086683] make_task_dead+0x2f/0x30 # [ 34.091060] rewind_stack_and_make_dead+0x17/0x20 # [ 34.096595] RIP: 0033:0x7fbb168cf473 # [ 34.100867] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00<6>[ 37.954577] lkdtm: Performing direct entry EXEC_VMALLOC <6>[ 37.963576] lkdtm: attempting ok execution at ffffffff8fb79910 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 2<6>[ 37.970398] lkdtm: attempting bad execution at ffffb7dc80337000 <2>[ 37.983532] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) 8 48 89 54 24 18 # [ 34.122133] RSP: 002b:00007fff7b5382b8 EF<1>[ 37.992190] BUG: unable to handle page fault for address: ffffb7dc80337000 <1>[ 38.006375] #PF: supervisor instruction fetch in kernel mode <1>[ 38.012984] #PF: error_code(0x0011) - permissions violation <6>[ 38.019496] PGD 100000067 P4D 100000067 PUD 100231067 PMD 100950067 PTE 80000001040d1063 <4>[ 38.028828] Oops: 0011 [#8] SMP PTI <4>[ 38.033011] CPU: 3 PID: 1649 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 38.041942] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 38.049039] RIP: 0010:0xffffb7dc80337000 <4>[ 38.053700] Code: Unable to access opcode bytes at RIP 0xffffb7dc80336fd6. <4>[ 38.061680] RSP: 0018:ffffb7dc8228fe38 EFLAGS: 00010246 <4>[ 38.067805] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 38.076065] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 <4>[ 38.084326] RBP: ffffb7dc80337000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 38.092586] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d <4>[ 38.100846] R13: ffffb7dc8228ff10 R14: ffffb7dc8228ff10 R15: ffff9e04040d1000 <4>[ 38.109106] FS: 00007f19efff4580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 38.118436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.125141] CR2: ffffb7dc80336fd6 CR3: 00000001032de002 CR4: 00000000003706e0 <4>[ 38.133400] Call Trace: <4>[ 38.136420] ? __die_body.cold+0x1a/0x1f <4>[ 38.141105] ? no_context+0x177/0x380 <4>[ 38.145475] ? exc_page_fault+0xd7/0x170 <4>[ 38.150143] ? asm_exc_page_fault+0x1e/0x30 <4>[ 38.155109] ? execute_location+0x45/0x56 <4>[ 38.159875] ? lkdtm_EXEC_VMALLOC+0x20/0x30 <4>[ 38.164834] ? direct_entry.cold+0x2c/0x38 <4>[ 38.169699] ? full_proxy_write+0x53/0x80 <4>[ 38.174464] ? vfs_write+0xe7/0x3b0 <4>[ 38.178648] ? ksys_write+0x68/0xf0 <4>[ 38.182823] ? do_syscall_64+0x30/0x40 <4>[ 38.187297] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 LAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 34.130881] RAX:<4>[ 38.193423] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 38.252414] CR2: ffffb7dc80337000 <4>[ 38.256403] ---[ end trace 19f7a216b67dc04f ]--- <4>[ 38.261849] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 38.266508] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 38.287782] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 38.293907] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 38.302168] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 38.310427] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 38.318688] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 38.326949] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 38.335209] FS: 00007f19efff4580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 38.344538] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.351246] CR2: ffffb7dc80336fd6 CR3: 00000001032de002 CR4: 00000000003706e0 ffffffffffffffda RBX: 000000000000001a RCX: 00007fbb168cf473 # [ 34.139143] RDX: 000000000000001a RSI: 00007fbb167c3000 RDI: 0000000000000001 # [ 34.147404] RBP: 00007fbb167c3000 R08: 00007fbb167c2010 R09: 0000000000000000 # [ 34.155681] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 34.163945] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # STACK_GUARD_PAGE_TRAILING: saw 'call trace:': ok ok 13 selftests: lkdtm: STACK_GUARD_PAGE_TRAILING.sh # selftests: lkdtm: UNSET_SMEP.sh # [ 34.254813] lkdtm: Performing direct entry UNSET_SMEP # [ 34.265224] lkdtm: trying to clear SMEP normally # [ 34.276900] ------------[ cut here ]------------ # [ 34.288569] pinned CR4 bits changed: 0x100000!? # [ 34.300146] WARNING: CPU: 0 PID: 1033 at arch/x86/kernel/cpu/common.c:392 native_write_cr4+0x45/0x60 # [ 34.316857] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 34.375825] CPU: 0 PID: 1033 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 34.390981] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 34.404307] RIP: 0010:native_write_cr4+0x45/0x60 # [ 34.415990] Code: 39 c2 75 2d 48 85 f6 75 05 c3 cc cc cc cc 80 3d e3 33 46 02 00 75 f2 48 c7 c7 68 73 ef 90 c6 05 d3 33 46 02 01 e8 d2 30 10 01 <0f> 0b c3 cc cc cc cc 48 89 d6 48 81 e7 ff f7 ce ff 48 31 c6 48 09 # [ 34.443490] RSP: 0018:ffffb7dc818cfe48 EFLAGS: 00010286 # [ 34.455845] RAX: 0000000000000000 RBX: 00000000002706f0 RCX: 0000000<6>[ 38.547830] lkdtm: Performing direct entry EXEC_RODATA <6>[ 38.558266] lkdtm: attempting ok execution at ffffffff8fb79910 <6>[ 38.565077] lkdtm: attempting bad execution at ffffffff90b7ece0 <2>[ 38.571986] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) 000000000 # [ 34.470411] RDX: ffff9e047ac2c660 RSI: ffff9e047<1>[ 38.580661] BUG: unable to handle page fault for address: ffffffff90b7ece0 <1>[ 38.594846] #PF: supervisor instruction fetch in kernel mode <1>[ 38.601456] #PF: error_code(0x0011) - permissions violation <6>[ 38.607969] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 8000000120e000e1 <4>[ 38.616038] Oops: 0011 [#9] SMP PTI <4>[ 38.620221] CPU: 2 PID: 1685 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 38.629162] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 38.636262] RIP: 0010:lkdtm_rodata_do_nothing+0x0/0x10 <4>[ 38.642290] Code: ff ff f0 eb 20 90 ff ff ff ff 6a 91 ff 90 ff ff ff ff 36 d3 20 90 ff ff ff ff 55 aa 55 aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 54 68 69 73 20 69 <4>[ 38.663565] RSP: 0018:ffffb7dc82307e48 EFLAGS: 00010246 <4>[ 38.669690] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 <4>[ 38.677953] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 <4>[ 38.686211] RBP: ffffffff90b7ece0 R08: 0000000000000000 R09: 0000000000000000 <4>[ 38.694473] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c <4>[ 38.702733] R13: ffffb7dc82307f10 R14: ffffb7dc82307f10 R15: ffff9e0404052000 <4>[ 38.710993] FS: 00007f2d0f248580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 38.720324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.727033] CR2: ffffffff90b7ece0 CR3: 000000010641a003 CR4: 00000000003706e0 <4>[ 38.735292] Call Trace: <4>[ 38.738312] ? __die_body.cold+0x1a/0x1f <4>[ 38.742983] ? no_context+0x177/0x380 <4>[ 38.747363] ? exc_page_fault+0xd7/0x170 <4>[ 38.752031] ? asm_exc_page_fault+0x1e/0x30 <4>[ 38.756986] ? execute_location+0x45/0x56 <4>[ 38.761753] ? direct_entry.cold+0x2c/0x38 <4>[ 38.766617] ? full_proxy_write+0x53/0x80 <4>[ 38.771383] ? vfs_write+0xe7/0x3b0 <4>[ 38.775567] ? ksys_write+0x68/0xf0 <4>[ 38.779752] ? do_syscall_64+0x30/0x40 <4>[ 38.784225] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 ac1bf70 RDI: ffff9e047ac1bf70 # [ 34.484835] RBP: ffffffff90f<4>[ 38.790352] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 38.849346] CR2: ffffffff90b7ece0 <4>[ 38.853327] ---[ end trace 19f7a216b67dc050 ]--- <4>[ 38.858765] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 38.863431] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 38.884708] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 38.890832] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 38.899091] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 38.907352] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 38.915612] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 38.923872] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 38.932133] FS: 00007f2d0f248580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 38.941461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.948167] CR2: ffffffff90b7ece0 CR3: 000000010641a003 CR4: 00000000003706e0 <3>[ 38.956429] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 38.966634] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1685, name: cat <4>[ 38.975379] INFO: lockdep is turned off. <4>[ 38.980047] irq event stamp: 0 <4>[ 38.983746] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 38.991037] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 39.000457] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 39.009883] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 39.017174] CPU: 2 PID: 1685 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 39.026115] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 39.033210] Call Trace: <4>[ 39.036227] dump_stack+0x77/0x9b <4>[ 39.040209] ___might_sleep.cold+0xa6/0xb6 <4>[ 39.045072] exit_signals+0x1c/0x300 <4>[ 39.049351] do_exit+0xc2/0xab0 <4>[ 39.053146] ? ksys_write+0x68/0xf0 <4>[ 39.057331] make_task_dead+0x2f/0x30 <4>[ 39.061708] rewind_stack_and_make_dead+0x17/0x20 <4>[ 39.067250] RIP: 0033:0x7f2d0f15e473 <4>[ 39.071529] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 39.092805] RSP: 002b:00007ffd3c2a91d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 39.101551] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f2d0f15e473 <4>[ 39.109812] RDX: 000000000000000c RSI: 00007f2d0f052000 RDI: 0000000000000001 <4>[ 39.118072] RBP: 00007f2d0f052000 R08: 00007f2d0f051010 R09: 0000000000000000 <4>[ 39.126334] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 39.134595] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 f8df5 R08: 0000000000000000 R09: 0000000000000000 # [ 34.499392] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b # [ 34.513856] R13: ffffb7dc818cff10 R14: ffffb7dc818cff10 R15: ffff9e0405b1d000 # [ 34.528395] FS: 00007f8b15a89580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 34.543917] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 34.556866] CR2: 00007f8b15893000 CR3: 0000000105ec0002 CR4: 00000000003706f0 # [ 34.571325] Call Trace: # [ 34.580577] ? __warn+0x80/0x110 # [ 34.590678] ? native_write_cr4+0x45/0x60 # [ 34.601704] ? report_bug+0x9e/0xc0 # [ 34.612123] ? handle_bug+0x41/0x90 # [ 34.622553] ? exc_invalid_op+0x14/0x70 # [ 34.633338] ? asm_exc_invalid_op+0x12/0x20 # [ 34.644558] ? native_write_cr4+0x45/0x60 # [ 34.655530] ? native_write_cr4+0x45/0x60 # [ 34.666557] lkdtm_UNSET_SMEP.cold+0x1d/0x103 # [ 34.677920] direct_entry.cold+0x2c/0x38 # [ 34.688859] full_proxy_write+0x53/0x80 # [ 34.699623] vfs_write+0xe7/0x3b0 # [ 34.709923] ksys_write+0x68/0xf0 # [ <6>[ 39.243773] lkdtm: Performing direct entry EXEC_USERSPACE <6>[ 39.254877] lkdtm: attempting ok execution at ffffffff8fb79910 <6>[ 39.261726] lkdtm: attempting bad execution at 00007f929db02000 <2>[ 39.268652] unable to execute userspace code (SMEP?) (uid: 0) <1>[ 39.275368] BUG: unable to handle page fault for address: 00007f929db02000 <1>[ 39.283340] #PF: supervisor instruction fetch in kernel mode <1>[ 39.289941] #PF: error_code(0x0011) - permissions violation <6>[ 39.296454] PGD 8000000105a12067 P4D 8000000105a12067 PUD 106419067 PMD 105fda067 PTE 10b79c067 <4>[ 39.306468] Oops: 0011 [#10] SMP PTI <4>[ 39.310739] CPU: 2 PID: 1721 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 39.319683] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 39.326779] RIP: 0010:0x7f929db02000 <4>[ 39.331057] Code: Unable to access opcode bytes at RIP 0x7f929db01fd6. <4>[ 39.338640] RSP: 0018:ffffb7dc8238fe50 EFLAGS: 00010246 <4>[ 39.344756] RAX: 0000000000000033 RBX: 0000000000000024 RCX: 0000000000000000 <4>[ 39.353017] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 <4>[ 39.361278] RBP: 00007f929db02000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 39.369539] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000f <4>[ 39.377800] R13: ffffb7dc8238ff10 R14: ffffb7dc8238ff10 R15: ffff9e04029c9000 <4>[ 39.386061] FS: 00007f929dad3580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 39.395391] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 39.402098] CR2: 00007f929db02000 CR3: 000000010641a005 CR4: 00000000003706e0 <4>[ 39.410361] Call Trace: <4>[ 39.413382] ? __die_body.cold+0x1a/0x1f <4>[ 39.418052] ? no_context+0x177/0x380 <4>[ 39.422432] ? exc_page_fault+0x53/0x170 <4>[ 39.427103] ? asm_exc_page_fault+0x1e/0x30 <4>[ 39.432067] ? lkdtm_EXEC_USERSPACE.cold+0x66/0xae <4>[ 39.437722] ? direct_entry.cold+0x2c/0x38 <4>[ 39.442619] ? full_proxy_write+0x53/0x80 <4>[ 39.447386] ? vfs_write+0xe7/0x3b0 <4>[ 39.451569] ? ksys_write+0x68/0xf0 <4>[ 39.455754] ? do_syscall_64+0x30/0x40 <4>[ 39.460229] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 34.720069] do_syscall_64+0x30/0x40 # [ 34.730632] entry_S<4>[ 39.466347] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 39.525347] CR2: 00007f929db02000 YSCALL_64_after_hwframe+0x61/0xc6 # [ 34.742913] RIP: 0033:0x<4>[ 39.529337] ---[ end trace 19f7a216b67dc051 ]--- <4>[ 39.540998] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 39.545682] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 39.566959] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 39.573076] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 39.581336] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 39.589597] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 39.597858] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 39.606119] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 39.614380] FS: 00007f929dad3580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 39.623709] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 39.630461] CR2: 00007f929db02000 CR3: 000000010641a005 CR4: 00000000003706e0 7f8b1599f473 # [ 34.753416] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 34.780911] RSP: 002b:00007ffeab0a3058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 34.795903] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f8b1599f473 # [ 34.810349] RDX: 000000000000000b RSI: 00007f8b15893000 RDI: 0000000000000001 # [ 34.824901] RBP: 00007f8b15893000 R08: 00007f8b15892010 R09: 0000000000000000 # [ 34.839330] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 34.853873] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 34.868325] irq event stamp: 0 # [ 34.878283] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 34.891878] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 34.907438] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 34.923109] softirqs last disabled at (<6>[ 39.744237] lkdtm: Performing direct entry EXEC_NULL 0): [<0000000000000000>] 0x0 # [ 34.936596] ---[ end trace 19<6>[ 39.750280] lkdtm: attempting ok execution at ffffffff8fb79910 f7a216b67dc04b ]--- # [ 34.948317] lkdtm: ok: SMEP did not ge<6>[ 39.763325] lkdtm: attempting bad execution at 0000000000000000 t cleared # [ 34.959867] lkdtm: trying to clear SMEP with cal<1>[ 39.776454] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 39.790737] #PF: supervisor instruction fetch in kernel mode <1>[ 39.797347] #PF: error_code(0x0010) - not-present page <6>[ 39.803375] PGD 0 P4D 0 <4>[ 39.806491] Oops: 0010 [#11] SMP PTI <4>[ 39.810770] CPU: 0 PID: 1757 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 39.819726] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 39.826827] RIP: 0010:0x0 <4>[ 39.830030] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. <4>[ 39.837992] RSP: 0018:ffffb7dc82437e48 EFLAGS: 00010246 <4>[ 39.844117] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 <4>[ 39.852378] RDX: 0000000000000000 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 <4>[ 39.860640] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 39.868902] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 39.877162] R13: ffffb7dc82437f10 R14: ffffb7dc82437f10 R15: ffff9e0405eaf000 <4>[ 39.885422] FS: 00007fb3d6d18580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 39.894752] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 39.901457] CR2: ffffffffffffffd6 CR3: 0000000102950005 CR4: 00000000003706f0 <4>[ 39.909734] Call Trace: <4>[ 39.912755] ? __die_body.cold+0x1a/0x1f <4>[ 39.917430] ? no_context+0x177/0x380 <4>[ 39.921815] ? exc_page_fault+0x53/0x170 <4>[ 39.926488] ? asm_exc_page_fault+0x1e/0x30 <4>[ 39.931443] execute_location+0x45/0x56 <4>[ 39.936020] direct_entry.cold+0x2c/0x38 <4>[ 39.940687] full_proxy_write+0x53/0x80 <4>[ 39.945266] vfs_write+0xe7/0x3b0 <4>[ 39.949254] ksys_write+0x68/0xf0 <4>[ 39.953245] do_syscall_64+0x30/0x40 <4>[ 39.957525] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 39.963454] RIP: 0033:0x7fb3d6c2e473 <4>[ 39.967742] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 39.989011] RSP: 002b:00007fff5af44838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 39.997758] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fb3d6c2e473 <4>[ 40.006021] RDX: 000000000000000a RSI: 00007fb3d6b22000 RDI: 0000000000000001 <4>[ 40.014283] RBP: 00007fb3d6b22000 R08: 00007fb3d6b21010 R09: 0000000000000000 <4>[ 40.022537] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 40.030796] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 40.039062] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 40.091840] CR2: 0000000000000000 <4>[ 40.095830] ---[ end trace 19f7a216b67dc052 ]--- <4>[ 40.101280] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 40.105953] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 40.127229] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 40.133356] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 40.141617] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 40.149880] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 40.158143] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 40.166405] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 40.174668] FS: 00007fb3d6d18580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 40.183990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 40.190699] CR2: ffffffffffffffd6 CR3: 0000000102950005 CR4: 00000000003706f0 <3>[ 40.198962] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 40.209167] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1757, name: cat <4>[ 40.217912] INFO: lockdep is turned off. <4>[ 40.222580] irq event stamp: 0 <4>[ 40.226278] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 40.233562] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 40.242991] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 40.252419] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 40.259712] CPU: 0 PID: 1757 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 40.268653] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 40.275749] Call Trace: <4>[ 40.278770] dump_stack+0x77/0x9b <4>[ 40.282765] ___might_sleep.cold+0xa6/0xb6 <4>[ 40.287637] exit_signals+0x1c/0x300 <4>[ 40.291923] do_exit+0xc2/0xab0 <4>[ 40.295710] ? ksys_write+0x68/0xf0 <4>[ 40.299896] make_task_dead+0x2f/0x30 <4>[ 40.304275] rewind_stack_and_make_dead+0x17/0x20 <4>[ 40.309818] RIP: 0033:0x7fb3d6c2e473 <4>[ 40.314099] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 40.335376] RSP: 002b:00007fff5af44838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 40.344125] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fb3d6c2e473 <4>[ 40.352388] RDX: 000000000000000a RSI: 00007fb3d6b22000 RDI: 0000000000000001 <4>[ 40.360651] RBP: 00007fb3d6b22000 R08: 00007fb3d6b21010 R09: 0000000000000000 <4>[ 40.368912] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 40.377175] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 l gadget # [ 34.972305] lkdtm: ok: SMEP removal was reverted # UNSET_SMEP: saw 'pinned CR4 bits changed:': ok ok 14 selftests: lkdtm: UNSET_SMEP.sh # selftests: lkdtm: DOUBLE_FAULT.sh # [ 35.070405] lkdtm: Performing direct entry DOUBLE_FAULT # [ 35.077067] lkdtm: XFAIL: this test is ia32-only # DOUBLE_FAULT: saw 'XFAIL': [SKIP] ok 15 selftests: lkdtm: DOUBLE_FAULT.sh # SKIP # selftests: lkdtm: CORRUPT_PAC.sh # [ 35.155826] lkdtm: Performing direct entry CORRUPT_PAC # [ 35.163181] lkdtm: XFAIL: this test is arm64-only # CORRUPT_PAC: saw 'XFAIL': [SKIP] ok 16 selftests: lkdtm: CORRUPT_PAC.sh # SKIP # selftests: lkdtm: UNALIGNED_LOAD_STORE_WRITE.sh # [ 35.241050] lkdtm: Performing direct entry UNALIGNED_LOAD_STORE_WRITE # [ 35.250848] lkdtm: XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS # UNALIGNED_LOAD_STORE_WRITE: saw 'XFAIL': [SKIP] ok 17 selftests: lkdtm: UNALIGNED_LOAD_STORE_WRITE.sh # SKIP # selftests: lkdtm: OVERWRITE_ALLOCATION.sh # Skipping OVERWRITE_ALLOCATION: Corrupts memory on failure ok 18 selftests: lkdtm: OVERWRITE_ALLOCATION.sh # SKIP # selftests: lkdtm: WRITE_AFTER_FREE.sh # Skipping WRITE_AFTER_FREE: Corrupts memory on failure ok 19 selftests: lkdtm: WRITE_AFTER_FREE.sh # SKIP # selftests: lkdtm: READ_AFTER_FREE.sh # [ 35.428517] lkdtm: Performing direct entry READ_AFTER_FREE # [ 35.439277] lkdtm: Value in memory before free: 12345678 # [ 35.451720] lkdtm: Attempting bad read from freed memory # [ 35.464142] lkdtm: Memory was not poiso<6>[ 40.528379] lkdtm: Performing direct entry ACCESS_USERSPACE <6>[ 40.541147] lkdtm: attempting bad read at 00007fcc5e144000 <1>[ 40.547581] BUG: unable to handle page fault for address: 00007fcc5e144000 ned # READ_AFTER_FREE: missing 'call trace:': [FAIL] not ok 20<1>[ 40.555576] #PF: supervisor read access in kernel mode <1>[ 40.567818] #PF: error_code(0x0001) - permissions violation s[ 40.574333] PGD 80000001030fb067 P4D 80000001030fb067 PUD 102fc3067 PMD 102950067 PTE 10ac4b067 <4>[ 40.590566] Oops: 0001 [#12] SMP PTI <4>[ 40.594838] CPU: 3 PID: 1792 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 40.603782] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 40.610883] RIP: 0010:lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 <4>[ 40.617398] Code: 00 00 00 75 64 48 83 c4 10 5d c3 cc cc cc cc 48 89 ee 48 c7 c7 88 9e ff 90 e8 ef d7 fb ff 48 c7 c7 b0 9e ff 90 b8 de c0 de c0 <48> 03 45 00 48 89 04 24 e8 d6 d7 fb ff 48 89 ee 48 c7 c7 d8 9e ff <4>[ 40.638682] RSP: 0018:ffffb7dc824cfe48 EFLAGS: 00010246 <4>[ 40.644807] RAX: 00000000c0dec0de RBX: 0000000000000026 RCX: 0000000000000000 <4>[ 40.653069] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffffffff90ff9eb0 <4>[ 40.661332] RBP: 00007fcc5e144000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 40.669594] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000011 <4>[ 40.677854] R13: ffffb7dc824cff10 R14: ffffb7dc824cff10 R15: ffff9e040267d000 <4>[ 40.686117] FS: 00007fcc5e115580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 40.695446] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 40.702152] CR2: 00007fcc5e144000 CR3: 0000000105ec0002 CR4: 00000000003706e0 <4>[ 40.710412] Call Trace: <4>[ 40.713432] ? __die_body.cold+0x1a/0x1f <4>[ 40.718100] ? no_context+0x177/0x380 <4>[ 40.722472] ? exc_page_fault+0x53/0x170 <4>[ 40.727140] ? asm_exc_page_fault+0x1e/0x30 <4>[ 40.732104] ? lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 <4>[ 40.737938] ? lkdtm_ACCESS_USERSPACE.cold+0x35/0xa3 <4>[ 40.743771] direct_entry.cold+0x2c/0x38 <4>[ 40.748442] full_proxy_write+0x53/0x80 <4>[ 40.753014] vfs_write+0xe7/0x3b0 <4>[ 40.757004] ksys_write+0x68/0xf0 <4>[ 40.760984] do_syscall_64+0x30/0x40 <4>[ 40.765263] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 40.771194] RIP: 0033:0x7fcc5e02b473 <4>[ 40.775473] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 40.796749] RSP: 002b:00007ffd61857d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 40.805495] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007fcc5e02b473 <4>[ 40.813757] RDX: 0000000000000011 RSI: 00007fcc5df1f000 RDI: 0000000000000001 <4>[ 40.822018] RBP: 00007fcc5df1f000 R08: 00007fcc5df1e010 R09: 0000000000000000 <4>[ 40.830278] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 40.838540] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 tm: WRITE_BUDDY_AFTER_FREE.sh # Skipping WRITE_BUDDY_AFTER_FREE<4>[ 40.846805] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 40.905801] CR2: 00007fcc5e144000 <4>[ 40.909789] ---[ end trace 19f7a216b67dc053 ]--- <4>[ 40.915235] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 40.919902] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 40.941177] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 40.947302] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 40.955563] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 40.963822] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 40.972084] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 40.980346] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 40.988608] FS: 00007fcc5e115580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 40.997936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 41.004644] CR2: 00007fcc5e144000 CR3: 0000000105ec0002 CR4: 00000000003706e0 : Corrupts memory on failure ok 21 selftests: lkdtm: WRITE_BUDDY_AFTER_FREE.sh # SKIP # selftests: lkdtm: READ_BUDDY_AFTER_FREE.sh # [ 35.574394] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE # [ 35.581655] lkdtm: Value in memory before free: 12345678 # [ 35.587889] lkdtm: Attempting to read from freed memory # [ 35.594026] lkdtm: Buddy page was not poisoned # READ_BUDDY_AFTER_FREE: missing 'call trace:': [FAIL] not ok 22 selftests: lkdtm: READ_BUDDY_AFTER_FREE.sh # exit=1 # selftests: lkdtm: SLAB_FREE_DOUBLE.sh # [ 35.671181] lkdtm: Performing direct entry SLAB_FREE_DOUBLE # [ 35.680431] lkdtm: Attempting double slab free ... # SLAB_FREE_DOUBLE: missing 'call trace:': [FAIL] not ok 23 selftests: lkdtm: SLAB_FREE_DOUBLE.sh # exit=1 # selftests: lkdtm: SLAB_FREE_CROSS.sh # [ 35.770741] lkdtm: Performing direct entry SLAB_FREE_CROSS # [ 35.779552] lkdtm: Attempting cross-cache slab free ... # SLAB_FREE_CROSS: missing 'call trace:': [FAIL] not ok 24 selftests: lkdtm: SLAB_FREE_CROSS.sh # exit=1 # selftests: lkdtm: SLAB_FREE_PAGE.sh # [ 35.857784] lkdtm: Performing direct entry SLAB_FREE_PAGE <6>[ 41.120731] lkdtm: Performing direct entry ACCESS_NULL # [ 35.866638] lkdtm: Attempting non-Slab slab free ... # SLA<6>[ 41.130857] lkdtm: attempting bad read at 0000000000000000 B_FREE_PAGE: missing 'call trace:': [FAIL] not ok 25 selftests:<1>[ 41.143523] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 41.157767] #PF: supervisor read access in kernel mode <1>[ 41.163794] #PF: error_code(0x0000) - not-present page <6>[ 41.169822] PGD 0 P4D 0 <4>[ 41.172939] Oops: 0000 [#13] SMP PTI <4>[ 41.177218] CPU: 0 PID: 1827 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 41.186160] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 41.193260] RIP: 0010:lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 41.198808] Code: 93 d7 fb ff be 00 10 00 00 48 89 ef e8 35 75 0f ff e9 69 ff ff ff 0f 1f 44 00 00 53 31 f6 48 c7 c7 88 9e ff 90 e8 6d d7 fb ff <48> 8b 1c 25 00 00 00 00 b8 de c0 de c0 48 c7 c7 b0 9e ff 90 48 01 <4>[ 41.220078] RSP: 0018:ffffb7dc8255fe58 EFLAGS: 00010246 <4>[ 41.226195] RAX: 000000000000002e RBX: 0000000000000027 RCX: 0000000000000000 <4>[ 41.234458] RDX: 0000000000000000 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 <4>[ 41.242720] RBP: ffffffff90ff8f79 R08: 0000000000000000 R09: 0000000000000000 <4>[ 41.250974] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c <4>[ 41.259236] R13: ffffb7dc8255ff10 R14: ffffb7dc8255ff10 R15: ffff9e0405c7f000 <4>[ 41.267499] FS: 00007f84d4dc1580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 41.276821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 41.283520] CR2: 0000000000000000 CR3: 00000001032c8005 CR4: 00000000003706f0 <4>[ 41.291783] Call Trace: <4>[ 41.294803] ? __die_body.cold+0x1a/0x1f <4>[ 41.299479] ? no_context+0x177/0x380 <4>[ 41.303865] ? exc_page_fault+0x53/0x170 <4>[ 41.308542] ? asm_exc_page_fault+0x1e/0x30 <4>[ 41.313505] ? lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 41.318375] ? lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 41.323229] direct_entry.cold+0x2c/0x38 <4>[ 41.327901] full_proxy_write+0x53/0x80 <4>[ 41.332480] vfs_write+0xe7/0x3b0 <4>[ 41.336475] ksys_write+0x68/0xf0 <4>[ 41.340468] do_syscall_64+0x30/0x40 <4>[ 41.344754] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 41.350686] RIP: 0033:0x7f84d4cd7473 <4>[ 41.354959] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 41.376237] RSP: 002b:00007ffd1b699498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 41.384986] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f84d4cd7473 <4>[ 41.393248] RDX: 000000000000000c RSI: 00007f84d4bcb000 RDI: 0000000000000001 <4>[ 41.401510] RBP: 00007f84d4bcb000 R08: 00007f84d4bca010 R09: 0000000000000000 <4>[ 41.409772] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 41.418034] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 41.426299] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 41.479073] CR2: 0000000000000000 <4>[ 41.483063] ---[ end trace 19f7a216b67dc054 ]--- <4>[ 41.488511] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 41.493186] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 41.514463] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 41.520580] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 41.528841] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 41.537104] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 41.545366] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 41.553628] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 41.561889] FS: 00007f84d4dc1580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 41.571220] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 41.577927] CR2: 0000000000000000 CR3: 00000001032c8005 CR4: 00000000003706f0 <3>[ 41.586190] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 41.596394] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1827, name: cat <4>[ 41.605143] INFO: lockdep is turned off. <4>[ 41.609810] irq event stamp: 0 <4>[ 41.613505] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 41.620796] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 41.630224] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 41.639652] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 41.646945] CPU: 0 PID: 1827 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 41.655887] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 41.662985] Call Trace: <4>[ 41.666004] dump_stack+0x77/0x9b <4>[ 41.669996] ___might_sleep.cold+0xa6/0xb6 <4>[ 41.674860] exit_signals+0x1c/0x300 <4>[ 41.679147] do_exit+0xc2/0xab0 <4>[ 41.682943] ? ksys_write+0x68/0xf0 <4>[ 41.687128] make_task_dead+0x2f/0x30 <4>[ 41.691507] rewind_stack_and_make_dead+0x17/0x20 <4>[ 41.697049] RIP: 0033:0x7f84d4cd7473 <4>[ 41.701330] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 41.722599] RSP: 002b:00007ffd1b699498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 41.731348] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f84d4cd7473 <4>[ 41.739609] RDX: 000000000000000c RSI: 00007f84d4bcb000 RDI: 0000000000000001 <4>[ 41.747871] RBP: 00007f84d4bcb000 R08: 00007f84d4bca010 R09: 0000000000000000 <4>[ 41.756133] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 41.764396] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 lkdtm: SLAB_FREE_PAGE.sh # exit=1 # selftests: lkdtm: SOFTLOCKUP.sh # Skipping SOFTLOCKUP: Hangs the system ok 26 selftests: lkdtm: SOFTLOCKUP.sh # SKIP # selftests: lkdtm: HARDLOCKUP.sh # Skipping HARDLOCKUP: Hangs the system ok 27 selftests: lkdtm: HARDLOCKUP.sh # SKIP # selftests: lkdtm: SPINLOCKUP.sh # Skipping SPINLOCKUP: Hangs the system ok 28 selftests: lkdtm: SPINLOCKUP.sh # SKIP # selftests: lkdtm: HUNG_TASK.sh # Skipping HUNG_TASK: Hangs the system ok 29 selftests: lkdtm: HUNG_TASK.sh # SKIP # selftests: lkdtm: EXEC_DATA.sh # Killed # [ 36.057526] lkdtm: Performing direct entry EXEC_DATA # [ 36.064751] lkdtm: attempting ok execution at ffffffff8fb79910 # [ 36.071564] lkdtm: attempting bad execution at ffffffff92a0ebe0 # [ 36.078508] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 36.093369] BUG: unable to handle page fault for address: ffffffff92a0ebe0 # [ 36.101339] #PF: supervisor instruction fetch in kernel mode # [ 36.107949] #PF: error_code(0x0011) - permissions violation # [ 36.114464] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 8000000122e000e3 # [ 36.122534] Oops: 0011 [#5] SMP PTI # [ 36.126731] CPU: 2 PID: 1540 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 36.135681] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 36.142782] RIP: 0010:data_area+0x0/0x40 # [ 36.147449] Code: ff ff 00 43 b1 04 04 9e ff ff 00 42 b1 04 04 9e ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f<6>[ 41.921945] lkdtm: Performing direct entry WRITE_RO 1f 44 00 00 55 # [ 36.168735] RSP: 0018:ffffb7dc820cfe48 EFL<6>[ 41.933787] lkdtm: attempting bad rodata write at ffffffff90b7ecd0 AGS: 00010246 # [ 36.174860] RAX: 0000000000000033 RBX: 00000<1>[ 41.947225] BUG: unable to handle page fault for address: ffffffff90b7ecd0 <1>[ 41.961402] #PF: supervisor write access in kernel mode 00000000001 RCX: 0000000000000000 # [ 36.183121] RDX: 0000000<1>[ 41.967529] #PF: error_code(0x0003) - permissions violation 00<0000000 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 # [ 36.6>[ 41.980258] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 8000000120e000e1 <4>[ 41.994547] Oops: 0003 [#14] SMP PTI <4>[ 41.998830] CPU: 1 PID: 1862 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 42.007771] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 42.014871] RIP: 0010:lkdtm_WRITE_RO+0x2e/0x3a 191381] RBP: ffffffff92a0ebe0 R08: 0000000000000000 R09: 0000000<4>[ 42.020124] Code: 00 48 c7 c7 68 9d ff 90 48 c7 c6 d0 ec b7 90 e8 17 da fb ff 48 8b 05 4f 16 97 00 ba 34 12 cd ab 48 c7 c7 98 9d ff 90 48 31 d0 <48> 89 05 39 16 97 00 e9 f5 d9 fb ff 0f 1f 44 00 00 48 8b 05 88 0c <4>[ 42.047611] RSP: 0018:ffffb7dc825afe60 EFLAGS: 00010202 <4>[ 42.053736] RAX: 000000000198b861 RBX: 0000000000000028 RCX: 0000000000000000 <4>[ 42.061997] RDX: 00000000abcd1234 RSI: ffff9e047ac9bf70 RDI: ffffffff90ff9d98 <4>[ 42.070259] RBP: ffffffff90ff8f85 R08: 0000000000000000 R09: 0000000000000000 <4>[ 42.078519] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000009 <4>[ 42.086780] R13: ffffb7dc825aff10 R14: ffffb7dc825aff10 R15: ffff9e04029c8000 <4>[ 42.095041] FS: 00007fb6ea840580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 <4>[ 42.104361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 42.111068] CR2: ffffffff90b7ecd0 CR3: 0000000103e6e003 CR4: 00000000003706e0 <4>[ 42.119330] Call Trace: <4>[ 42.122350] ? __die_body.cold+0x1a/0x1f 000000000 # [ 36.199643] R10: 00000000ffffe000 R11: 3ffffffff<4>[ 42.127020] ? no_context+0x177/0x380 <4>[ 42.137610] ? exc_page_fault+0xd7/0x170 fffffff R12: 000000000000000a # [ 36.207906] R13: ffffb7dc820<4>[ 42.142281] ? asm_exc_page_fault+0x1e/0x30 <4>[ 42.153455] ? lkdtm_WRITE_RO+0x2e/0x3a cff10 R14: ffffb7dc820cff10 R15: ffff9e0402fd6000 # [ 36.2161<4>[ 42.158027] direct_entry.cold+0x2c/0x38 <4>[ 42.168912] full_proxy_write+0x53/0x80 <4>[ 42.173484] vfs_write+0xe7/0x3b0 <4>[ 42.177474] ksys_write+0x68/0xf0 <4>[ 42.181463] do_syscall_64+0x30/0x40 <4>[ 42.185742] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 42.191685] RIP: 0033:0x7fb6ea756473 <4>[ 42.195964] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 42.217241] RSP: 002b:00007ffe141b3398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 42.225979] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fb6ea756473 <4>[ 42.234239] RDX: 0000000000000009 RSI: 00007fb6ea64a000 RDI: 0000000000000001 <4>[ 42.242501] RBP: 00007fb6ea64a000 R08: 00007fb6ea649010 R09: 0000000000000000 <4>[ 42.250761] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 42.259022] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 67] FS: 00007f6450697580(0000) GS:ffff9e047ad00000(0000) knlGS:<4>[ 42.267287] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 42.326247] CR2: ffffffff90b7ecd0 <4>[ 42.330228] ---[ end trace 19f7a216b67dc055 ]--- <4>[ 42.335682] RIP: 0010:lkdtm_BUG+0x5/0x10 0000000000000000 # [ 36.225498] CS: 0010 DS: 0000 ES: 0000 C<4>[ 42.340352] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 42.367840] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 42.373957] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 42.382220] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 42.390482] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 42.398744] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 42.407006] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 42.415259] FS: 00007fb6ea840580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 <4>[ 42.424588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 42.431296] CR2: ffffffff90b7ecd0 CR3: 0000000103e6e003 CR4: 00000000003706e0 R0: 0000000080050033 # [ 36.232205] CR2: ffffffff92a0ebe0 CR3: 0000000102eb6005 CR4: 00000000003706e0 # [ 36.240467] Call Trace: # [ 36.243489] ? __die_body.cold+0x1a/0x1f # [ 36.248160] ? no_context+0x177/0x380 # [ 36.252539] ? exc_page_fault+0xd7/0x170 # [ 36.257209] ? asm_exc_page_fault+0x1e/0x30 # [ 36.262173] ? execute_location+0x45/0x56 # [ 36.266938] ? direct_entry.cold+0x2c/0x38 # [ 36.271805] ? full_proxy_write+0x53/0x80 # [ 36.276570] ? vfs_write+0xe7/0x3b0 # [ 36.280753] ? ksys_write+0x68/0xf0 # [ 36.284938] ? do_syscall_64+0x30/0x40 # [ 36.289410] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 36.295537] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 36.354535] CR2: ffffffff92a0ebe0 # [ 36.358523] ---[ end trace 19f7a216b67dc04c ]--- # [ 36.363963] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 36.368630] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff<6>[ 42.570012] lkdtm: Performing direct entry WRITE_RO_AFTER_INIT eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff <6>[ 42.583108] lkdtm: attempting bad ro_after_init write at ffffffff9107e330 eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44<1>[ 42.597232] BUG: unable to handle page fault for address: ffffffff9107e330 <1>[ 42.611381] #PF: supervisor write access in kernel mode <1>[ 42.617507] #PF: error_code(0x0003) - permissions violation <6>[ 42.624012] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 105947063 PTE 800000012147e061 <4>[ 42.633343] Oops: 0003 [#15] SMP PTI <4>[ 42.637615] CPU: 0 PID: 1897 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 42.646558] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 42.653650] RIP: 0010:lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a <4>[ 42.659976] Code: 9d ff 90 e9 c9 d9 fb ff 48 c7 c7 f0 9d ff 90 e8 bd d9 fb ff 48 8b 05 55 0c e7 00 ba 34 12 cd ab 48 c7 c7 98 9d ff 90 48 31 d0 <48> 89 05 3f 0c e7 00 e9 9b d9 fb ff 0f 1f 44 00 00 41 54 48 c7 c7 <4>[ 42.681253] RSP: 0018:ffffb7dc8265fe60 EFLAGS: 00010202 <4>[ 42.687379] RAX: 00000000fe67479e RBX: 0000000000000029 RCX: 0000000000000000 <4>[ 42.695640] RDX: 00000000abcd1234 RSI: ffff9e047ac1bf70 RDI: ffffffff90ff9d98 <4>[ 42.703901] RBP: ffffffff90ff8f8e R08: 0000000000000000 R09: 0000000000000000 <4>[ 42.712163] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000014 <4>[ 42.720425] R13: ffffb7dc8265ff10 R14: ffffb7dc8265ff10 R15: ffff9e040312e000 <4>[ 42.728687] FS: 00007f4e6c677580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 42.738018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 42.744717] CR2: ffffffff9107e330 CR3: 0000000103376006 CR4: 00000000003706f0 <4>[ 42.752978] Call Trace: <4>[ 42.755998] ? __die_body.cold+0x1a/0x1f <4>[ 42.760675] ? no_context+0x177/0x380 <4>[ 42.765061] ? exc_page_fault+0xd7/0x170 <4>[ 42.769737] ? asm_exc_page_fault+0x1e/0x30 <4>[ 42.774700] ? lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a <4>[ 42.780347] direct_entry.cold+0x2c/0x38 <4>[ 42.785018] full_proxy_write+0x53/0x80 <4>[ 42.789598] vfs_write+0xe7/0x3b0 <4>[ 42.793589] ksys_write+0x68/0xf0 <4>[ 42.797580] do_syscall_64+0x30/0x40 <4>[ 42.801867] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 42.807799] RIP: 0033:0x7f4e6c58d473 <4>[ 42.812079] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 42.833356] RSP: 002b:00007fff0c558ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 42.842105] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f4e6c58d473 <4>[ 42.850367] RDX: 0000000000000014 RSI: 00007f4e6c481000 RDI: 0000000000000001 <4>[ 42.858628] RBP: 00007f4e6c481000 R08: 00007f4e6c480010 R09: 0000000000000000 <4>[ 42.866888] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 42.875151] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 42.883417] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 42.936197] CR2: ffffffff9107e330 <4>[ 42.940186] ---[ end trace 19f7a216b67dc056 ]--- <4>[ 42.945634] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 42.950309] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 42.971577] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 42.977701] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 42.985963] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 42.994225] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 43.002487] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 43.010749] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 43.019011] FS: 00007f4e6c677580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 43.028342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.035050] CR2: ffffffff9107e330 CR3: 0000000103376006 CR4: 00000000003706f0 <3>[ 43.043312] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 43.053518] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1897, name: cat <4>[ 43.062265] INFO: lockdep is turned off. <4>[ 43.066932] irq event stamp: 0 <4>[ 43.070629] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 43.077919] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 43.087340] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 43.096766] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 43.104059] CPU: 0 PID: 1897 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 43.112992] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 43.120089] Call Trace: <4>[ 43.123107] dump_stack+0x77/0x9b <4>[ 43.127097] ___might_sleep.cold+0xa6/0xb6 <4>[ 43.131962] exit_signals+0x1c/0x300 <4>[ 43.136250] do_exit+0xc2/0xab0 <4>[ 43.140045] ? ksys_write+0x68/0xf0 <4>[ 43.144228] make_task_dead+0x2f/0x30 <4>[ 43.148599] rewind_stack_and_make_dead+0x17/0x20 <4>[ 43.154143] RIP: 0033:0x7f4e6c58d473 <4>[ 43.158416] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 43.179692] RSP: 002b:00007fff0c558ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 43.188440] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f4e6c58d473 <4>[ 43.196703] RDX: 0000000000000014 RSI: 00007f4e6c481000 RDI: 0000000000000001 <4>[ 43.204964] RBP: 00007f4e6c481000 R08: 00007f4e6c480010 R09: 0000000000000000 <4>[ 43.213225] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 43.221486] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 00 00 83 05 50 56 e9 02 # [ 36.389908] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 36.396034] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 36.404296] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 36.412557] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 36.420819] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 36.429080] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 36.437343] FS: 00007f6450697580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 36.446679] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 36.453387] CR2: ffffffff92a0ebe0 CR3: 0000000102eb6005 CR4: 00000000003706e0 # [ 36.461650] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 36.471846] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1540, name: cat # [ 36.480591] INFO: lockdep is turned off. # [ 36.485260] irq event stamp: 0 # [ 36.488951] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 36.496242] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 36.505681] softirqs last enabled at (0): [] copy_proc<6>[ 43.350967] lkdtm: Performing direct entry WRITE_KERN ess+0x664/0x1c60 # [ 36.515107] softirqs last disabled at (0)<6>[ 43.360018] lkdtm: attempting bad 6896875 byte write at ffffffff9020d5fb : [<0000000000000000>] 0x0 # [ 36.522398] CPU: 2 PID: 1540 Co<1>[ 43.374037] BUG: unable to handle page fault for address: ffffffff9020d5fb <1>[ 43.388185] #PF: supervisor write access in kernel mode <1>[ 43.394311] #PF: error_code(0x0003) - permissions violation <6>[ 43.400825] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 1206000e1 <4>[ 43.408222] Oops: 0003 [#16] SMP PTI <4>[ 43.412494] CPU: 0 PID: 1932 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 43.421437] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 43.428537] RIP: 0010:lkdtm_WRITE_KERN+0x38/0x4e <4>[ 43.433980] Code: 53 48 c7 c3 fb d5 20 90 49 89 dc 48 89 da 49 81 ec 10 99 b7 8f 4c 89 e6 e8 70 d9 fb ff 48 89 df 4c 89 e1 48 c7 c6 10 99 b7 8f a4 48 c7 c7 98 9d ff 90 e8 55 d9 fb ff 5b 41 5c e9 b7 fe ff ff <4>[ 43.455257] RSP: 0018:ffffb7dc826d7e50 EFLAGS: 00010246 <4>[ 43.461382] RAX: 000000000000003c RBX: ffffffff9020d5fb RCX: 0000000000693ceb <4>[ 43.469644] RDX: 0000000000000000 RSI: ffffffff8fb79910 RDI: ffffffff9020d5fb <4>[ 43.477905] RBP: ffffffff90ff8fa2 R08: 0000000000000000 R09: 0000000000000000 <4>[ 43.486169] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000693ceb <4>[ 43.494429] R13: ffffb7dc826d7f10 R14: ffffb7dc826d7f10 R15: ffff9e0405eb9000 <4>[ 43.502691] FS: 00007f231804c580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 43.512022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.518730] CR2: ffffffff9020d5fb CR3: 0000000102aba002 CR4: 00000000003706f0 <4>[ 43.526993] Call Trace: <4>[ 43.530013] ? __die_body.cold+0x1a/0x1f <4>[ 43.534690] ? no_context+0x177/0x380 <4>[ 43.539076] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 43.544820] ? exc_page_fault+0xd7/0x170 <4>[ 43.549490] ? asm_exc_page_fault+0x1e/0x30 <4>[ 43.554451] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 43.560189] ? lkdtm_SLAB_FREE_PAGE+0x40/0x40 <4>[ 43.565349] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 43.571086] ? lkdtm_WRITE_KERN+0x38/0x4e <4>[ 43.575855] direct_entry.cold+0x2c/0x38 <4>[ 43.580525] full_proxy_write+0x53/0x80 <4>[ 43.585105] vfs_write+0xe7/0x3b0 <4>[ 43.589093] ksys_write+0x68/0xf0 <4>[ 43.593084] do_syscall_64+0x30/0x40 <4>[ 43.597370] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 43.603303] RIP: 0033:0x7f2317f62473 <4>[ 43.607575] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 43.628850] RSP: 002b:00007fffbf16c7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 43.637598] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f2317f62473 <4>[ 43.645861] RDX: 000000000000000b RSI: 00007f2317e56000 RDI: 0000000000000001 <4>[ 43.654124] RBP: 00007f2317e56000 R08: 00007f2317e55010 R09: 0000000000000000 <4>[ 43.662386] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 43.670648] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 43.678915] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 43.731694] CR2: ffffffff9020d5fb <4>[ 43.735684] ---[ end trace 19f7a216b67dc057 ]--- <4>[ 43.741132] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 43.745792] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 43.767070] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 43.773195] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 43.781458] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 43.789720] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 43.797982] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 43.806245] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 43.814506] FS: 00007f231804c580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 <4>[ 43.823838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.830537] CR2: ffffffff9020d5fb CR3: 0000000102aba002 CR4: 00000000003706f0 <3>[ 43.838800] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 43.849004] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1932, name: cat <4>[ 43.857753] INFO: lockdep is turned off. <4>[ 43.862412] irq event stamp: 0 <4>[ 43.866109] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 43.873402] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 43.882831] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 43.892250] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 43.899542] CPU: 0 PID: 1932 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 43.908485] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 43.915583] Call Trace: <4>[ 43.918602] dump_stack+0x77/0x9b <4>[ 43.922597] ___might_sleep.cold+0xa6/0xb6 <4>[ 43.927469] exit_signals+0x1c/0x300 <4>[ 43.931755] do_exit+0xc2/0xab0 <4>[ 43.935550] ? ksys_write+0x68/0xf0 <4>[ 43.939727] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 43.945465] make_task_dead+0x2f/0x30 <4>[ 43.949843] rewind_stack_and_make_dead+0x17/0x20 <4>[ 43.955384] RIP: 0033:0x7f2317f62473 <4>[ 43.959665] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 43.980934] RSP: 002b:00007fffbf16c7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 43.989674] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f2317f62473 <4>[ 43.997934] RDX: 000000000000000b RSI: 00007f2317e56000 RDI: 0000000000000001 <4>[ 44.006195] RBP: 00007f2317e56000 R08: 00007f2317e55010 R09: 0000000000000000 <4>[ 44.014456] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 44.022719] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 mm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 36.531339] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 36.538436] Call Trace: # [ 36.541454] dump_stack+0x77/0x9b # [ 36.545444] ___might_sleep.cold+0xa6/0xb6 # [ 36.550309] exit_signals+0x1c/0x300 # [ 36.554580] do_exit+0xc2/0xab0 # [ 36.558376] ? ksys_write+0x68/0xf0 # [ 36.562562] make_task_dead+0x2f/0x30 # [ 36.566939] rewind_stack_and_make_dead+0x17/0x20 # [ 36.572482] RIP: 0033:0x7f64505ad473 # [ 36.576763] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 36.598038] RSP: 002b:00007fff23504b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 36.606785] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f64505ad473 # [ 36.615046] RDX: 000000000000000a RSI: 00007f64504a1000 RDI: 0000000000000001 # [ 36.623307] RBP: 00007f64504a1000 R08: 00007f64504a0010 R09: 0000000000000000 # [ 36.631568] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 36.639829] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # EXEC_DATA: saw 'call trace:': ok ok 30 selftests: lkdtm: EXEC_DATA.sh # selftests: lkdtm: EXEC_STACK.sh # Killed # [ 36.745683] lkdtm: Performing direct entry EXEC_STACK # [ 36.753511] lkdtm: attempting ok execution at ffffffff8fb79910 # [ 36.760331] lkdtm: attempting bad execution at ffffb7dc8213fe18 # [ 36.767249] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 36.775906] BUG: unable to handle page fault for address: ffffb7dc8213fe18 # [ 36.783869] #PF: supervisor instruction fetch in kernel mode # [ 36.790479] #PF: error_code(0x0011) - permissions violation # [ 36.796993] PGD 100000067 P4D 100000067 PUD 100231067 PM<6>[ 44.211880] lkdtm: Performing direct entry REFCOUNT_INC_OVERFLOW D 10654d067 PTE 8000000105be7063 # [ 36.812547] Oops: 0011 [#<6>[ 44.224490] lkdtm: attempting good refcount_inc() without overflow 6] SMP PTI # [ 36.816733] CPU: 3 PID: 1577 Comm: cat Tainted:<6>[ 44.237896] lkdtm: attempting bad refcount_inc() overflow G D W 5.10.182-cip35 #1 # [ 36.825681] Hardware<4>[ 44.250435] ------------[ cut here ]------------ name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 36.832778] <4>[ 44.262128] refcount_t: saturated; leaking memory. RIP: 0010:0xffffb7dc8213fe18 # [ 36.837438] Code: 00 00 18 fe<4>[ 44.274000] WARNING: CPU: 0 PID: 1967 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 13 82 dc b7 ff ff 51 d6 20 90 ff ff ff ff 20 00 00 00 00 00 00 <4>[ 44.289917] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight 00 1e 8f ff 90 ff ff ff ff 80 d7 20 90 ff ff ff ff <0f> 1f 44 00<4>[ 44.348905] CPU: 0 PID: 1967 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 44.364050] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 # [ 36<4>[ 44.371184] RIP: 0010:refcount_warn_saturate+0x51/0x110 .858714] RSP: 0018:ffffb7dc8213fdf8 EFLAGS: 00010246 # [ 36.8<4>[ 44.383570] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 64839] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 00000000<4>[ 44.411031] RSP: 0018:ffffb7dc82767e48 EFLAGS: 00010286 00000000 # [ 36.873101] RDX: 0000000000000000 RSI: ffff9e047a<4>[ 44.423402] RAX: 0000000000000000 RBX: 000000000000002b RCX: 0000000000000000 d9bf70 RDI: ffff9e047ad9bf70 # [ 36.881361] RBP: ffffb7dc8213<4>[ 44.437873] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 fe18 R08: 0000000000000000 R09: 0000000000000000 # [ 36.88962<4>[ 44.452378] RBP: ffffffff90ff8fad R08: 0000000000000000 R09: 0000000000000000 2] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000<4>[ 44.466823] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 000b # [ 36.897885] R13: ffffb7dc8213ff10 R14: ffffb7dc8213ff<4>[ 44.481322] R13: ffffb7dc82767f10 R14: ffffb7dc82767f10 R15: ffff9e0405d81000 10 R15: ffff9e0402a55000 # [ 36.906148] FS: 00007fde75043580<4>[ 44.495792] FS: 00007ff127e20580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 (0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 3<4>[ 44.511353] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 6.915477] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [<4>[ 44.524261] CR2: 00007ff127c2a000 CR3: 00000001027fa002 CR4: 00000000003706f0 36.922183] CR2: ffffb7dc8213fe18 CR3: 000000010274a005 CR4: 0<4>[ 44.538769] Call Trace: 0000000003706e0 # [ 36.930444] Call Trace: # [ 36.933466] <4>[ 44.547994] ? __warn+0x80/0x110 ? __die_body.cold+0x1a/0x1f # [ 36.938138] ? no_context+0x1<4>[ 44.558127] ? refcount_warn_saturate+0x51/0x110 77/0x380 # [ 36.942518] ? exc_page_fault+0xd7/0x170 # [ 3<4>[ 44.569776] ? report_bug+0x9e/0xc0 6.947186] ? asm_exc_page_fault+0x1e/0x30 # [ 36.952150] ? e<4>[ 44.580210] ? handle_bug+0x41/0x90 xecute_location+0x45/0x56 # [ 36.956917] ? lkdtm_EXEC_STACK+<4>[ 44.590590] ? exc_invalid_op+0x14/0x70 0x26/0x44 # [ 36.961682] ? direct_entry.cold+0x2c/0x38 # [ <4>[ 44.601395] ? asm_exc_invalid_op+0x12/0x20 36.966547] ? full_proxy_write+0x53/0x80 # [ 36.971313] ? <4>[ 44.612573] ? refcount_warn_saturate+0x51/0x110 vfs_write+0xe7/0x3b0 # [ 36.975488] ? ksys_write+0x68/0xf0 <4>[ 44.624243] ? refcount_warn_saturate+0x51/0x110 # [ 36.979688] ? do_syscall_64+0x30/0x40 # [ 36.984154] ?<4>[ 44.635902] lkdtm_REFCOUNT_INC_OVERFLOW+0x70/0x98 entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 36.990280] Modu<4>[ 44.647785] direct_entry.cold+0x2c/0x38 les linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors <4>[ 44.658659] full_proxy_write+0x53/0x80 cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf ind<4>[ 44.669461] vfs_write+0xe7/0x3b0 ustrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar<4>[ 44.679658] ksys_write+0x68/0xf0 cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vma<4>[ 44.689889] do_syscall_64+0x30/0x40 lloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd<4>[ 44.700371] entry_SYSCALL_64_after_hwframe+0x61/0xc6 _logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cr<4>[ 44.712530] RIP: 0033:0x7ff127d36473 os_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify r<4>[ 44.723018] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 egmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_ba<4>[ 44.750540] RSP: 002b:00007ffeae42c538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 cklight # [ 37.049277] CR2: ffffb7dc8213fe18 # [ 37.053256<4>[ 44.765495] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007ff127d36473 ] ---[ end trace 19f7a216b67dc04d ]--- # [ 37.058702] RIP: 00<4>[ 44.779993] RDX: 0000000000000016 RSI: 00007ff127c2a000 RDI: 0000000000000001 10:lkdtm_BUG+0x5/0x10 # [ 37.063372] Code: 89 ff e8 3e e6 79 <4>[ 44.794457] RBP: 00007ff127c2a000 R08: 00007ff127c29010 R09: 0000000000000000 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc c<4>[ 44.808965] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 c 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 <4>[ 44.823428] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 37.084640<4>[ 44.837940] irq event stamp: 0 ] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 37.090765] <4>[ 44.847837] hardirqs last enabled at (0): [<0000000000000000>] 0x0 RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 000000000000000<4>[ 44.861363] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 0 # [ 37.099026] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 <4>[ 44.876996] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 RDI: ffffffff90b7e850 # [ 37.107286] RBP: ffffffff9105d410 R0<4>[ 44.892653] softirqs last disabled at (0): [<0000000000000000>] 0x0 8: 0000000000000001 R09: 0000000000000001 # [ 37.115548] R10:<4>[ 44.906154] ---[ end trace 19f7a216b67dc058 ]--- 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 #<6>[ 44.917826] lkdtm: Overflow detected: saturated [ 37.123809] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 37.132071] FS: 00007fde75043580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 37.141401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 37.148108] CR2: ffffb7dc8213fe18 CR3: 000000010274a005 CR4: 00000000003706e0 # EXEC_STACK: saw 'call trace:': ok ok 31 selftests: lkdtm: EXEC_STACK.sh # selftests: lkdtm: EXEC_KMALLOC.sh # Killed # [ 37.251185] lkdtm: Performing direct entry EXEC_KMALLOC # [ 37.261982] lkdtm: attempting ok execution at ffffffff8fb79910 # [ 37.268798] lkdtm: attempting bad execution at ffff9e0404006600 # [ 37.275708] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 37.284403] BUG: unable to handle page fault for address: ffff9e0404006600 # [ 37.292374] #PF: supervisor instruction fetch in kernel mode # [ 37.298986] #PF: error_code(0x0011) - permissions violation # [ 37.305500] PGD 123001067 P4D 123001067 PUD 100236063 PMD 1049e3063 PTE 8000000104006063 # [ 37.314833] Oops: 0011 [#7] SMP PTI # [ 37.325230] CPU: 3 PID: 1613 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 37.334171] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 37.341270] RIP: 0010:0xffff9e0404006600 # [ 37.345937] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10 c0 75 02 04 9e ff ff 00 00 00 00 00 00 00 00 <0f> 1f 44 00 00 c3 <6>[ 45.071674] lkdtm: Performing direct entry REFCOUNT_ADD_OVERFLOW cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 # [ 37.367212<6>[ 45.079472] lkdtm: attempting good refcount_add() without overflow ] RSP: 0018:ffffb7dc821ffe38 EFLAGS: 00010246 # [ 37.373336] <6>[ 45.092893] lkdtm: attempting bad refcount_add() overflow RAX: 0000000000000033 RBX: 0000000000000001 RCX: 000000000000000<4>[ 45.105429] ------------[ cut here ]------------ 0 # [ 37.381598] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 <4>[ 45.117092] refcount_t: saturated; leaking memory. RDI: ffff9e047ad9bf70 # [ 37.389859] RBP: ffff9e0404006600 R0<4>[ 45.128981] WARNING: CPU: 1 PID: 1999 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 8: 0000000000000000 R09: 0000000000000000 # [ 37.398120] R10:<4>[ 45.144885] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d #<4>[ 45.203847] CPU: 1 PID: 1999 Comm: cat Tainted: G D W 5.10.182-cip35 #1 [ 37.406382] R13: ffffb7dc821fff10 R14: ffffb7dc821fff10 R15:<4>[ 45.219004] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 ffff9e04065b3000 # [ 37.414645] FS: 00007f953a100580(0000) <4>[ 45.232323] RIP: 0010:refcount_warn_saturate+0x51/0x110 GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 37.42397<4>[ 45.244662] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 6] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 37.4<4>[ 45.272157] RSP: 0018:ffffb7dc827e7e48 EFLAGS: 00010286 30687] CR2: ffff9e0404006600 CR3: 0000000105948001 CR4: 00000000<4>[ 45.284496] RAX: 0000000000000000 RBX: 000000000000002c RCX: 0000000000000000 003706e0 # [ 37.438948] Call Trace: # [ 37.441967] ? __di<4>[ 45.298977] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 e_body.cold+0x1a/0x1f # [ 37.446638] ? no_context+0x177/0x38<4>[ 45.313462] RBP: ffffffff90ff8fc3 R08: 0000000000000000 R09: 0000000000000000 0 # [ 37.451017] ? exc_page_fault+0xd7/0x170 # [ 37.45568<4>[ 45.327937] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 7] ? asm_exc_page_fault+0x1e/0x30 # [ 37.460653] ? execute_<4>[ 45.342412] R13: ffffb7dc827e7f10 R14: ffffb7dc827e7f10 R15: ffff9e04040af000 location+0x45/0x56 # [ 37.465418] ? lkdtm_EXEC_KMALLOC+0x2c/<4>[ 45.356889] FS: 00007f9796522580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 0x40 # [ 37.470378] ? direct_entry.cold+0x2c/0x38 # [ 37.<4>[ 45.372433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 475234] ? full_proxy_write+0x53/0x80 # [ 37.480001] ? vfs_w<4>[ 45.385359] CR2: 00007f979632c000 CR3: 000000010641a003 CR4: 00000000003706e0 rite+0xe7/0x3b0 # [ 37.484177] ? ksys_write+0x68/0xf0 # [ <4>[ 45.399838] Call Trace: 37.488360] ? do_syscall_64+0x30/0x40 # [ 37.492834] ? entr<4>[ 45.409078] ? __warn+0x80/0x110 y_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 37.498961] Modules l<4>[ 45.419184] ? refcount_warn_saturate+0x51/0x110 inked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_<4>[ 45.430849] ? report_bug+0x9e/0xc0 ec_sensors_core industrialio_triggered_buffer kfifo_buf industri<4>[ 45.441254] ? handle_bug+0x41/0x90 alio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros<4>[ 45.451652] ? exc_invalid_op+0x14/0x70 _ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc <4>[ 45.462465] ? asm_exc_invalid_op+0x12/0x20 snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logg<4>[ 45.473646] ? refcount_warn_saturate+0x51/0x110 <4>[ 45.485304] ? refcount_warn_saturate+0x51/0x110 er videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec<4>[ 45.490753] lkdtm_REFCOUNT_ADD_OVERFLOW+0x7f/0xa7 <4>[ 45.502604] direct_entry.cold+0x2c/0x38 _dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap<4>[ 45.507276] full_proxy_write+0x53/0x80 _i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlig<4>[ 45.518060] vfs_write+0xe7/0x3b0 ht # [ 37.557961] CR2: ffff9e0404006600 # [ 37.561950] ---<4>[ 45.528271] ksys_write+0x68/0xf0 [ end trace 19f7a216b67dc04e ]--- # [ 37.567394] RIP: 0010:lk<4>[ 45.538477] do_syscall_64+0x30/0x40 dtm_BUG+0x5/0x10 # [ 37.572064] Code: 89 ff e8 3e e6 79 ff 48<4>[ 45.548974] entry_SYSCALL_64_after_hwframe+0x61/0xc6 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 <4>[ 45.561121] RIP: 0033:0x7f9796438473 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00<4>[ 45.571620] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 37.593330] RSP<4>[ 45.599110] RSP: 002b:00007ffccde0e618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 : 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 37.599455] RAX: <4>[ 45.614077] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f9796438473 ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # <4>[ 45.628556] RDX: 0000000000000016 RSI: 00007f979632c000 RDI: 0000000000000001 [ 37.607732] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: <4>[ 45.643035] RBP: 00007f979632c000 R08: 00007f979632b010 R09: 0000000000000000 ffffffff90b7e850 # [ 37.615993] RBP: ffffffff9105d410 R08: 00<4>[ 45.657514] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 00000000000001 R09: 0000000000000001 # [ 37.624254] R10: 0000<4>[ 45.671995] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 0000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ <4>[ 45.686481] irq event stamp: 0 37.632515] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff<4>[ 45.696391] hardirqs last enabled at (0): [<0000000000000000>] 0x0 9e0402af6000 # [ 37.640777] FS: 00007f953a100580(0000) GS:ff<4>[ 45.709899] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 ff9e047ad80000(0000) knlGS:0000000000000000 # [ 37.650097] CS<4>[ 45.725544] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 : 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 37.656806<4>[ 45.741190] softirqs last disabled at (0): [<0000000000000000>] 0x0 ] CR2: ffff9e0404006600 CR3: 0000000105948001 CR4: 0000000000370<4>[ 45.754697] ---[ end trace 19f7a216b67dc059 ]--- 6e0 # [ 37.665069] BUG: sleeping function called from invalid<6>[ 45.766359] lkdtm: Overflow detected: saturated context at include/linux/percpu-rwsem.h:49 # [ 37.675271] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1613, name: cat # [ 37.684019] INFO: lockdep is turned off. # [ 37.688686] irq event stamp: 0 # [ 37.692384] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 37.699684] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 37.709110] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 37.718535] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 37.725825] CPU: 3 PID: 1613 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 37.734765] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 37.741862] Call Trace: # [ 37.744879] dump_stack+0x77/0x9b # [ 37.748860] ___might_sleep.cold+0xa6/0xb6 # [ 37.753734] exit_signals+0x1c/0x300 # [ 37.758014] do_exit+0xc2/0xab0 # [ 37.761809] ? ksys_write+0x68/0xf0 # [ 37.765992] make_task_dead+0x2f/0x30 # [ 37.770361] rewind_stack_and_make_dead+0x17/0x20 # [ 37.775895] RIP: 0033:0x7f953a016473 # [ 37.780174] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 37.801448] RSP: 002b:00007fff774ad5c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 37.810194] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f953a016473 # [ 37.818454] RDX: 000000000000000d RSI: 00007f9539f0a000 RDI: 0000000000000001 # [ 37.826714] RBP: 00007f9539f0a000 R08: 00007f9539f09010 R09: 0000000000000000 # [ 37.835017] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 37.843278] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # EXEC_KMALLOC: saw 'call trace:': ok ok 32 selftests: lkdtm: EXEC_KMALLOC.sh # selftests: lkdtm: EXEC_VMALLOC.sh # Killed # [ 37.954577] lkdtm: Performing direct entry EXEC_VMALLOC # [ 37.963576] lkdtm: attempting ok execution at ffffffff8fb79910 # [ 37.970398] lkdtm: attempting bad execution at ffffb7dc80337000 # [ 37.983532] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 37.992190] BUG: unable to handle page fault for address: ffffb7dc80337000 # [ 38.006375] #PF: supervisor instruction fetch in kernel mode # [ 38.012984] #PF: error_code(0x0011) - permissions violation # [ 38.019496] PGD 100000067 P4D 100000067 PUD 100231067 PMD 100950067 PTE 80000001040d1063 # [ 38.028828] Oops: 0011 [#8] SMP PTI # [ 38.033011] CPU: 3 PID: 1649 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 38.041942] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 38.049039] RIP: 0010:0xffffb7dc80337000 # [ 38.053700] Code: Unable to access opcode bytes at RIP 0xffffb7dc80336fd6. # [ 38.061680] RSP: 0018:ffffb7dc8228fe38 EFLAGS: 00010246 # [ 38.067805] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 # [ 38.076065] RDX: 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 # [ 38.084326] RBP: ffffb7dc80337000 R08: 0000000000000000 R09: 0000000000000000 # [ 38.092586] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d # [ 38.100846] R13: ffffb7dc8228ff10 R14: ffffb7dc8228ff10 R15: ffff9e04040d1000 # [ 38.109106] FS: 00007f19efff4580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 38.118436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.125141] CR2: ffffb7dc80336fd6 CR3: 00000001032de002 CR4: 00000000003706e0 # [ 38.133400] Call Trace: # [ 38.136420] ? __die_body.cold+0x1a/0x1f # [ 38.141105] ? no_context+0x177/0x380 # [ 38.145475] ? exc_page_fault+0xd7/0x170 # [ 38.150143] ? asm_exc_page_fault+0x1e/0x30 # [ 38.155109] ? execute_location+0x45/0x56 # [ 38.159875] ? lkdtm_EXEC_VMALLOC+0x20/0x30 # [ 38.164834] ? direct_entry.cold+0x2c/0x38 # [ 38.169699] ? full_proxy_write+0x53/0x80 # [ 38.174464] ? vfs_write+0xe7/0x3b0 # [ 38.178648] ? ksys_write+0x68/0xf0 # [ 38.182823] ? do_syscall_64+0x30/0x40 # [ 38.187297] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 38.193423] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 38.252414] CR2: ffffb7dc80337000 # [ 38.256403] ---[ end trace 19f7a216b67dc04f ]--- # [ 38.261849] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 38.266508] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 38.287782] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 38.293907] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 38.302168] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 38.310427] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 38.318688] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 38.326949] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 38.335209] FS: 00007f19efff4580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 38.344538] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.351246] CR2: ffffb7dc80336fd6 CR3: 00000001032de002 CR4: 00000000003706e0 # EXEC_VMALLOC: saw 'call trace:': ok ok 33 selftests: lkdtm: EXEC_VMALLOC.sh # selftests: lkdtm: EXEC_RODATA.sh # Killed # [ 38.547830] lkdtm: Performing direct entry EXEC_RODATA # [ 38.558266] lkdtm: attempting ok execution at ffffffff8fb79910 # [ 38.565077] lkdtm: attempting bad execution at ffffffff90b7ece0 # [ 38.571986] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 38.580661] BUG: unable to handle page fault for address: ffffffff90b7ece0 # [ 38.594846] #PF: supervisor instruction fetch<6>[ 46.407806] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_OVERFLOW in kernel mode # [ 38.601456] #PF: error_code(0x0011) - perm<6>[ 46.421266] lkdtm: attempting bad refcount_inc_not_zero() overflow issions violation # [ 38.607969] PGD 121629067 P4D 121629067 <4>[ 46.434724] ------------[ cut here ]------------ PUD 12162a063 PMD 8000000120e000e1 # [ 38.616038] Oops: 0011<4>[ 46.446364] refcount_t: saturated; leaking memory. [#9] SMP PTI # [ 38.620221] CPU: 2 PID: 1685 Comm: cat Taint<4>[ 46.458251] WARNING: CPU: 1 PID: 2031 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 ed: G D W 5.10.182-cip35 #1 # [ 38.629162] Hardw<4>[ 46.474161] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight are name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 38.63626<4>[ 46.533121] CPU: 1 PID: 2031 Comm: cat Tainted: G D W 5.10.182-cip35 #1 2] RIP: 0010:lkdtm_rodata_do_nothing+0x0/0x10 # [ 38.642290] <4>[ 46.548276] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 Code: ff ff f0 eb 20 90 ff ff ff ff 6a 91 ff 90 ff ff ff ff 36 d<4>[ 46.561593] RIP: 0010:refcount_warn_saturate+0x97/0x110 3 20 90 ff ff ff ff 55 aa 55 aa 00 00 00 00 00 00 00 00 00 00 00<4>[ 46.573938] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 54 68 69 7<4>[ 46.601426] RSP: 0018:ffffb7dc8286fe38 EFLAGS: 00010282 3 20 69 # [ 38.663565] RSP: 0018:ffffb7dc82307e48 EFLAGS: 000<4>[ 46.613770] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 10246 # [ 38.669690] RAX: 0000000000000033 RBX: 0000000000000<4>[ 46.628249] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 000 RCX: 0000000000000000 # [ 38.677953] RDX: 000000000000000<4>[ 46.642735] RBP: ffffffff90ff8c00 R08: 0000000000000000 R09: 0000000000000000 0 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 # [ 38.686211] <4>[ 46.657213] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f RBP: ffffffff90b7ece0 R08: 0000000000000000 R09: 000000000000000<4>[ 46.671692] R13: ffffb7dc8286ff10 R14: ffffb7dc8286ff10 R15: ffff9e04040df000 0 # [ 38.694473] R10: 00000000ffffe000 R11: 3fffffffffffffff <4>[ 46.686171] FS: 00007f78133e8580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 R12: 000000000000000c # [ 38.702733] R13: ffffb7dc82307f10 R1<4>[ 46.701719] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 4: ffffb7dc82307f10 R15: ffff9e0404052000 # [ 38.710993] FS: <4>[ 46.714645] CR2: 00007f78131f2000 CR3: 00000001030ba004 CR4: 00000000003706e0 <4>[ 46.729119] Call Trace: 00007f2d0f248580(0000) GS:ffff9e047ad00000(0000) knlGS:00000000<4>[ 46.732147] ? __warn+0x80/0x110 00000000 # [ 38.720324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000<4>[ 46.742248] ? refcount_warn_saturate+0x97/0x110 000080050033 # [ 38.727033] CR2: ffffffff90b7ece0 CR3: 000000<4>[ 46.753938] ? report_bug+0x9e/0xc0 010641a003 CR4: 00000000003706e0 # [ 38.735292] Call Trace: <4>[ 46.764319] ? handle_bug+0x41/0x90 # [ 38.738312] ? __die_body.cold+0x1a/0x1f # [ 38.742983] <4>[ 46.774713] ? exc_invalid_op+0x14/0x70 ? no_context+0x177/0x380 # [ 38.747363] ? exc_page_fault+0x<4>[ 46.785504] ? asm_exc_invalid_op+0x12/0x20 d7/0x170 # [ 38.752031] ? asm_exc_page_fault+0x1e/0x30 # [ <4>[ 46.796683] ? refcount_warn_saturate+0x97/0x110 38.756986] ? execute_location+0x45/0x56 # [ 38.761753] ? <4>[ 46.808343] ? refcount_warn_saturate+0x97/0x110 direct_entry.cold+0x2c/0x38 # [ 38.766617] ? full_proxy_writ<4>[ 46.820006] __refcount_add_not_zero.constprop.0+0x2a/0x35 e+0x53/0x80 # [ 38.771383] ? vfs_write+0xe7/0x3b0 # [ 38.<4>[ 46.832642] lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW+0x3e/0x76 775567] ? ksys_write+0x68/0xf0 # [ 38.779752] ? do_syscall_<4>[ 46.845373] direct_entry.cold+0x2c/0x38 64+0x30/0x40 # [ 38.784225] ? entry_SYSCALL_64_after_hwframe<4>[ 46.856263] full_proxy_write+0x53/0x80 +0x61/0xc6 # [ 38.790352] Modules linked in: fuse ip_tables c<4>[ 46.867052] vfs_write+0xe7/0x3b0 ros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrial<4>[ 46.877259] ksys_write+0x68/0xf0 io_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvid<4>[ 46.887467] do_syscall_64+0x30/0x40 eo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_char<4>[ 46.897961] entry_SYSCALL_64_after_hwframe+0x61/0xc6 dev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_ch<4>[ 46.910110] RIP: 0033:0x7f78132fe473 arger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_comp<4>[ 46.920607] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 ress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine vid<4>[ 46.948095] RSP: 002b:00007ffe109e0f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 eobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_tabl<4>[ 46.963061] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f78132fe473 e chromeos_pstore cros_kbd_led_backlight # [ 38.849346] CR2: <4>[ 46.977543] RDX: 000000000000001f RSI: 00007f78131f2000 RDI: 0000000000000001 ffffffff90b7ece0 # [ 38.853327] ---[ end trace 19f7a216b67dc0<4>[ 46.992021] RBP: 00007f78131f2000 R08: 00007f78131f1010 R09: 0000000000000000 50 ]--- # [ 38.858765] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 38<4>[ 47.006499] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 .863431] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 4<4>[ 47.020979] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 8 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f<4>[ 47.035463] irq event stamp: 0 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 8<4>[ 47.045373] hardirqs last enabled at (0): [<0000000000000000>] 0x0 3 05 50 56 e9 02 # [ 38.884708] RSP: 0018:ffffb7dc812e7e60 EF<4>[ 47.058882] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 LAGS: 00010282 # [ 38.890832] RAX: ffffffff8fb79540 RBX: 0000<4>[ 47.074526] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 000000000001 RCX: 0000000000000000 # [ 38.899091] RDX: 000000<4>[ 47.090171] softirqs last disabled at (0): [<0000000000000000>] 0x0 0000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 38<4>[ 47.103684] ---[ end trace 19f7a216b67dc05a ]--- .907352] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 000000<6>[ 47.115348] lkdtm: Overflow detected: saturated 0000000001 # [ 38.915612] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 38.923872] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 38.932133] FS: 00007f2d0f248580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 38.941461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.948167] CR2: ffffffff90b7ece0 CR3: 000000010641a003 CR4: 00000000003706e0 # [ 38.956429] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 38.966634] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1685, name: cat # [ 38.975379] INFO: lockdep is turned off. # [ 38.980047] irq event stamp: 0 # [ 38.983746] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 38.991037] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 39.000457] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 39.009883] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 39.017174] CPU: 2 PID: 1685 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 39.026115] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 39.<6>[ 47.240557] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_OVERFLOW <6>[ 47.253050] lkdtm: attempting bad refcount_add_not_zero() overflow <4>[ 47.260283] ------------[ cut here ]------------ <4>[ 47.265761] refcount_t: saturated; leaking memory. 033210] Call Trace: # [ 39.036227] dump_stack+0x77/0x9b # [<4>[ 47.271415] WARNING: CPU: 3 PID: 2063 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 39.040209] ___might_sleep.cold+0xa6/0xb6 # [ 39.045072] <4>[ 47.287340] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 47.346354] CPU: 3 PID: 2063 Comm: cat Tainted: G D W 5.10.182-cip35 #1 exit_signals+0x1c/0x300 # [ 39.049351] do_exit+0xc2/0xab0 #<4>[ 47.355309] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 [ 39.053146] ? ksys_write+0x68/0xf0 # [ 39.057331] make_<4>[ 47.368619] RIP: 0010:refcount_warn_saturate+0x97/0x110 <4>[ 47.380962] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 <4>[ 47.402239] RSP: 0018:ffffb7dc828dfe38 EFLAGS: 00010282 <4>[ 47.408367] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 <4>[ 47.416622] RDX: ffff9e047adac660 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 <4>[ 47.424884] RBP: ffffffff90ff8c20 R08: 0000000000000000 R09: 0000000000000000 <4>[ 47.433147] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f <4>[ 47.441411] R13: ffffb7dc828dff10 R14: ffffb7dc828dff10 R15: ffff9e040648e000 task_dead+0x2f/0x30 # [ 39.061708] rewind_stack_and_make_dea<4>[ 47.449683] FS: 00007f4112a88580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 47.465232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 47.471940] CR2: 00007f4112892000 CR3: 0000000103376005 CR4: 00000000003706e0 <4>[ 47.480194] Call Trace: <4>[ 47.483215] ? __warn+0x80/0x110 <4>[ 47.487130] ? refcount_warn_saturate+0x97/0x110 <4>[ 47.492579] ? report_bug+0x9e/0xc0 <4>[ 47.496764] ? handle_bug+0x41/0x90 <4>[ 47.500947] ? exc_invalid_op+0x14/0x70 <4>[ 47.505513] ? asm_exc_invalid_op+0x12/0x20 <4>[ 47.510479] ? refcount_warn_saturate+0x97/0x110 <4>[ 47.515949] ? refcount_warn_saturate+0x97/0x110 <4>[ 47.521396] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 47.527816] lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW+0x3e/0x76 <4>[ 47.534332] direct_entry.cold+0x2c/0x38 d+0x17/0x20 # [ 39.067250] RIP: 0033:0x7f2d0f15e473 # [ 39<4>[ 47.539007] full_proxy_write+0x53/0x80 <4>[ 47.549797] vfs_write+0xe7/0x3b0 .071529] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff f<4>[ 47.553791] ksys_write+0x68/0xf0 <4>[ 47.564000] do_syscall_64+0x30/0x40 <4>[ 47.568305] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 47.574237] RIP: 0033:0x7f411299e473 <4>[ 47.578520] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 47.599798] RSP: 002b:00007fff8f1e0578 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 47.608549] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f411299e473 <4>[ 47.616812] RDX: 000000000000001f RSI: 00007f4112892000 RDI: 0000000000000001 <4>[ 47.625075] RBP: 00007f4112892000 R08: 00007f4112891010 R09: 0000000000000000 <4>[ 47.633338] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 47.641601] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 47.649859] irq event stamp: 0 <4>[ 47.653580] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 47.660873] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 47.670301] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 47.679735] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 47.687017] ---[ end trace 19f7a216b67dc05b ]--- <6>[ 47.692463] lkdtm: Overflow detected: saturated f ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 39.092805] RSP: 002b:00007ffd3c2a91d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 39.101551] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f2d0f15e473 # [ 39.109812] RDX: 000000000000000c RSI: 00007f2d0f052000 RDI: 0000000000000001 # [ 39.118072] RBP: 00007f2d0f052000 R08: 00007f2d0f051010 R09: 0000000000000000 # [ 39.126334] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 39.134595] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # EXEC_RODATA: saw 'call trace:': ok ok 34 selftests: lkdtm: EXEC_RODATA.sh # selftests: lkdtm: EXEC_USERSPACE.sh # Killed # [ 39.243773] lkdtm: Performing direct entry EXEC_USERSPACE # [ 39.254877] lkdtm: attempting ok execution at ffffffff8fb79910 # [ 39.261726] lkdtm: attempting bad execution at 00007f929db02000 # [ 39.268652] unable to execute userspace code (SMEP?) (uid: 0) # [ 39.275368] BUG: unable to handle page fault for address: 00007f929db02000 # [ 39.283340] #<6>[ 47.808500] lkdtm: Performing direct entry REFCOUNT_DEC_ZERO <6>[ 47.816333] lkdtm: attempting good refcount_dec() <6>[ 47.821890] lkdtm: attempting bad refcount_dec() to zero PF: supervisor instruction fetch in kernel mode # [ 39.289941<4>[ 47.828123] ------------[ cut here ]------------ <4>[ 47.839788] refcount_t: decrement hit 0; leaking memory. ] #PF: error_code(0x0011) - permissions violation # [ 39.2964<4>[ 47.846025] WARNING: CPU: 3 PID: 2095 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 54] PGD 8000000105a12067 P4D 8000000105a12067 PUD 106419067 PMD <4>[ 47.861953] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight 105fda067 PTE 10b79c067 # [ 39.306468] Oops: 0011 [#10] SMP P<4>[ 47.920909] CPU: 3 PID: 2095 Comm: cat Tainted: G D W 5.10.182-cip35 #1 TI # [ 39.310739] CPU: 2 PID: 1721 Comm: cat Tainted: G <4>[ 47.936063] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 D W 5.10.182-cip35 #1 # [ 39.319683] Hardware name: G<4>[ 47.949379] RIP: 0010:refcount_warn_saturate+0xfb/0x110 oogle Rammus/Rammus, BIOS 09/04/2020 # [ 39.326779] RIP: 001<4>[ 47.961720] Code: d8 3f f5 90 c6 05 7d f1 f6 01 01 e8 96 ed c0 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 3f f5 90 c6 05 64 f1 f6 01 01 e8 7c ed c0 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b 0:0x7f929db02000 # [ 39.331057] Code: Unable to access opcode<4>[ 47.989212] RSP: 0018:ffffb7dc8293fe48 EFLAGS: 00010286 <4>[ 48.001554] RAX: 0000000000000000 RBX: 000000000000002f RCX: 0000000000000000 bytes at RIP 0x7f929db01fd6. # [ 39.338640] RSP: 0018:ffffb7<4>[ 48.009819] RDX: ffff9e047adac660 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 <4>[ 48.024293] RBP: ffffffff90ff8fd9 R08: 0000000000000000 R09: 0000000000000000 dc8238fe50 EFLAGS: 00010246 # [ 39.344756] RAX: 0000000000000<4>[ 48.032557] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 48.047031] R13: ffffb7dc8293ff10 R14: ffffb7dc8293ff10 R15: ffff9e0402ab6000 033 RBX: 0000000000000024 RCX: 0000000000000000 # [ 39.353017<4>[ 48.055295] FS: 00007f8f5c18e580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 48.070837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1b<4>[ 48.077546] CR2: 00007f8f5bf98000 CR3: 0000000102e0e003 CR4: 00000000003706e0 <4>[ 48.092021] Call Trace: f70 # [ 39.361278] RBP: 00007f929db02000 R08: 000000000000000<4>[ 48.095046] ? __warn+0x80/0x110 0 R09: 0000000000000000 # [ 39.369539] R10: 00000000ffffe000 <4>[ 48.105146] ? refcount_warn_saturate+0xfb/0x110 R11: 3fffffffffffffff R12: 000000000000000f # [ 39.377800] R1<4>[ 48.116811] ? report_bug+0x9e/0xc0 3: ffffb7dc8238ff10 R14: ffffb7dc8238ff10 R15: ffff9e04029c9000 <4>[ 48.127211] ? handle_bug+0x41/0x90 # [ 39.386061] FS: 00007f929dad3580(0000) GS:ffff9e047ad0000<4>[ 48.137609] ? exc_invalid_op+0x14/0x70 0(0000) knlGS:0000000000000000 # [ 39.395391] CS: 0010 DS: 0<4>[ 48.148400] ? asm_exc_invalid_op+0x12/0x20 000 ES: 0000 CR0: 0000000080050033 # [ 39.402098] CR2: 00007f<4>[ 48.159579] ? refcount_warn_saturate+0xfb/0x110 929db02000 CR3: 000000010641a005 CR4: 00000000003706e0 # [ 39<4>[ 48.171241] ? refcount_warn_saturate+0xfb/0x110 .410361] Call Trace: # [ 39.413382] ? __die_body.cold+0x1a/0<4>[ 48.182903] lkdtm_REFCOUNT_DEC_ZERO+0x4d/0xbd x1f # [ 39.418052] ? no_context+0x177/0x380 # [ 39.422432<4>[ 48.194374] direct_entry.cold+0x2c/0x38 ] ? exc_page_fault+0x53/0x170 # [ 39.427103] ? asm_exc_page<4>[ 48.205259] full_proxy_write+0x53/0x80 _fault+0x1e/0x30 # [ 39.432067] ? lkdtm_EXEC_USERSPACE.cold+<4>[ 48.216049] vfs_write+0xe7/0x3b0 0x66/0xae # [ 39.437722] ? direct_entry.cold+0x2c/0x38 # [ <4>[ 48.226254] ksys_write+0x68/0xf0 39.442619] ? full_proxy_write+0x53/0x80 # [ 39.447386] ? <4>[ 48.236464] do_syscall_64+0x30/0x40 vfs_write+0xe7/0x3b0 # [ 39.451569] ? ksys_write+0x68/0xf0 <4>[ 48.246960] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 39.455754] ? do_syscall_64+0x30/0x40 # [ 39.460229] ?<4>[ 48.259108] RIP: 0033:0x7f8f5c0a4473 entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 39.466347] Modu<4>[ 48.269605] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 les linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors <4>[ 48.297094] RSP: 002b:00007ffc3681b838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 48.312058] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f8f5c0a4473 cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf ind<4>[ 48.320322] RDX: 0000000000000012 RSI: 00007f8f5bf98000 RDI: 0000000000000001 <4>[ 48.334797] RBP: 00007f8f5bf98000 R08: 00007f8f5bf97010 R09: 0000000000000000 ustrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar<4>[ 48.343060] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 48.357535] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vma<4>[ 48.365803] irq event stamp: 0 lloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd<4>[ 48.375709] hardirqs last enabled at (0): [<0000000000000000>] 0x0 _logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cr<4>[ 48.389218] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 os_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify r<4>[ 48.404862] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 48.420505] softirqs last disabled at (0): [<0000000000000000>] 0x0 egmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_ba<4>[ 48.427797] ---[ end trace 19f7a216b67dc05c ]--- <6>[ 48.439457] lkdtm: Zero detected: saturated cklight # [ 39.525347] CR2: 00007f929db02000 # [ 39.529337] ---[ end trace 19f7a216b67dc051 ]--- # [ 39.540998] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 39.545682] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 39.566959] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 39.573076] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 39.581336] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 39.589597] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 39.597858] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 39.606119] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 39.614380] FS: 00007f929dad3580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 39.623709] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 39.630461] CR2: 00007f929db02000 CR3: 000000010641a005 CR4: 00000000003706e0 # EXEC_USERSPACE: saw 'call trace:': ok ok 35 selftests: lkdtm: EXEC_USERSPACE.sh # selftests: lkdtm: EXEC_NULL.sh # Killed # [ 39.744237] lkdtm: Performing direct entry EXEC_NULL # [ 39.750280] lkdtm: attempting ok execution at ffffffff<6>[ 48.574760] lkdtm: Performing direct entry REFCOUNT_DEC_NEGATIVE <6>[ 48.581935] lkdtm: attempting bad refcount_dec() below zero <4>[ 48.588473] ------------[ cut here ]------------ <4>[ 48.593945] refcount_t: decrement hit 0; leaking memory. <4>[ 48.600213] WARNING: CPU: 2 PID: 2130 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 8fb79910 # [ 39.763325] lkdtm: attempting bad execution at 00<4>[ 48.609955] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 48.668965] CPU: 2 PID: 2130 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 48.677933] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 48.685031] RIP: 0010:refcount_warn_saturate+0xfb/0x110 <4>[ 48.691160] Code: d8 3f f5 90 c6 05 7d f1 f6 01 01 e8 96 ed c0 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 3f f5 90 c6 05 64 f1 f6 01 01 e8 7c ed c0 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b 00000000000000 # [ 39.776454] BUG: kernel NULL pointer derefe<4>[ 48.712457] RSP: 0018:ffffb7dc829afe48 EFLAGS: 00010286 <4>[ 48.724800] RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000 <4>[ 48.733065] RDX: ffff9e047ad2c660 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 <4>[ 48.741326] RBP: ffffffff90ff8feb R08: 0000000000000000 R09: 0000000000000000 <4>[ 48.749579] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 <4>[ 48.757844] R13: ffffb7dc829aff10 R14: ffffb7dc829aff10 R15: ffff9e0405a42000 <4>[ 48.766109] FS: 00007f9bee3a3580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 48.775441] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 48.782151] CR2: 00007f9bee1ad000 CR3: 0000000102d00002 CR4: 00000000003706e0 <4>[ 48.790413] Call Trace: <4>[ 48.793437] ? __warn+0x80/0x110 rence, address: 0000000000000000 # [ 39.790737] #PF: supervis<4>[ 48.797359] ? refcount_warn_saturate+0xfb/0x110 <4>[ 48.809017] ? report_bug+0x9e/0xc0 <4>[ 48.813203] ? handle_bug+0x41/0x90 <4>[ 48.817388] ? exc_invalid_op+0x14/0x70 <4>[ 48.821964] ? asm_exc_invalid_op+0x12/0x20 <4>[ 48.826928] ? refcount_warn_saturate+0xfb/0x110 <4>[ 48.832401] ? refcount_warn_saturate+0xfb/0x110 <4>[ 48.837850] lkdtm_REFCOUNT_DEC_NEGATIVE+0x37/0x61 <4>[ 48.843495] direct_entry.cold+0x2c/0x38 or instruction fetch in kernel mode # [ 39.797347] #PF: error<4>[ 48.848195] full_proxy_write+0x53/0x80 _code(0x0010) - not-present page # [ 39.803375] PGD 0 P4D 0 <4>[ 48.858985] vfs_write+0xe7/0x3b0 # [ 39.806491] Oops: 0010 [#11] SMP PTI # [ 39.810770] CPU<4>[ 48.869193] ksys_write+0x68/0xf0 <4>[ 48.879399] do_syscall_64+0x30/0x40 <4>[ 48.883728] entry_SYSCALL_64_after_hwframe+0x61/0xc6 : 0 PID: 1757 Comm: cat Tainted: G D W 5.10.182-cip<4>[ 48.889684] RIP: 0033:0x7f9bee2b9473 <4>[ 48.900174] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 48.921478] RSP: 002b:00007ffd9f9fea38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 35 #1 # [ 39.819726] Hardware name: Google Rammus/Rammus, BIO<4>[ 48.930247] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f9bee2b9473 <4>[ 48.944713] RDX: 0000000000000016 RSI: 00007f9bee1ad000 RDI: 0000000000000001 <4>[ 48.952979] RBP: 00007f9bee1ad000 R08: 00007f9bee1ac010 R09: 0000000000000000 <4>[ 48.961243] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 48.969509] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 48.977779] irq event stamp: 0 <4>[ 48.981510] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 48.988803] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 48.998234] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 49.007685] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 49.014979] ---[ end trace 19f7a216b67dc05d ]--- <6>[ 49.020426] lkdtm: Negative detected: saturated S 09/04/2020 # [ 39.826827] RIP: 0010:0x0 # [ 39.830030] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. # [ 39.837992] RSP: 0018:ffffb7dc82437e48 EFLAGS: 00010246 # [ 39.844117] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 # [ 39.852378] RDX: 0000000000000000 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 # [ 39.860640] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 # [ 39.868902] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a # [ 39.877162] R13: ffffb7dc82437f10 R14: ffffb7dc82437f10 R15: ffff9e0405eaf000 # [ 39.885422] FS: 00007fb3d6d18580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 39.894752] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 39.901457] CR2: ffffffffffffffd6 CR3: 0000000102950005 CR4: 00000000003706f0 # [ 39.909734] Call Trace: # [ 39.912755] ? __die_body.cold+0x1a/0x1f # [ 39.917430] ? no_context+0x177/0x380 # [ 39.921815] ? exc_page_fault+0x53/0x170 # [ 39.926488] ? asm_exc_page_fault+0x1e/0x30 # [ 39.931443] execute_location+0x45/0x56 # [ 39.936020] direct_entry.cold+0x2c/0x38 # [ 39.940687] full_proxy_write+0x53/0x80 # <6>[ 49.140464] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_NEGATIVE [ 39.945266] vfs_write+0xe7/0x3b0 # [ 39.949254] ksys_wri<6>[ 49.151777] lkdtm: attempting bad refcount_dec_and_test() below zero te+0x68/0xf0 # [ 39.953245] do_syscall_64+0x30/0x40 # [ 3<4>[ 49.165403] ------------[ cut here ]------------ 9.957525] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 39.96<4>[ 49.177048] refcount_t: underflow; use-after-free. 3454] RIP: 0033:0x7fb3d6c2e473 # [ 39.967742] Code: 8b 15 21 <4>[ 49.188937] WARNING: CPU: 1 PID: 2165 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8<4>[ 49.204840] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 <4>[ 49.263816] CPU: 1 PID: 2165 Comm: cat Tainted: G D W 5.10.182-cip35 #1 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ <4>[ 49.278953] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 49.292266] RIP: 0010:refcount_warn_saturate+0xba/0x110 39.989011] RSP: 002b:00007fff5af44838 EFLAGS: 00000246 ORIG_RAX:<4>[ 49.298395] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 <4>[ 49.325882] RSP: 0018:ffffb7dc82a67e40 EFLAGS: 00010286 0000000000000001 # [ 39.997758] RAX: ffffffffffffffda RBX: 0<4>[ 49.332013] RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000000000 <4>[ 49.346487] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 <4>[ 49.354749] RBP: ffffffff90ff8c40 R08: 0000000000000000 R09: 0000000000000000 <4>[ 49.363013] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f <4>[ 49.371276] R13: ffffb7dc82a67f10 R14: ffffb7dc82a67f10 R15: ffff9e0403483000 00000000000000a RCX: 00007fb3d6c2e473 # [ 40.006021] RDX: 000<4>[ 49.379540] FS: 00007efc5065f580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 <4>[ 49.395080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 000000000000a RSI: 00007fb3d6b22000 RDI: 0000000000000001 # [ <4>[ 49.401793] CR2: 00007efc50469000 CR3: 0000000102be6004 CR4: 00000000003706e0 <4>[ 49.416266] Call Trace: 40.014283] RBP: 00007fb3d6b22000 R08: 00007fb3d6b21010 R09: 000<4>[ 49.419289] ? __warn+0x80/0x110 <4>[ 49.429421] ? refcount_warn_saturate+0xba/0x110 0000000000000 # [ 40.022537] R10: fffffffffffffbc5 R11: 00000<4>[ 49.434871] ? report_bug+0x9e/0xc0 00000000246 R12: 0000000000000001 # [ 40.030796] R13: 0000000<4>[ 49.445268] ? handle_bug+0x41/0x90 000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 40.<4>[ 49.455668] ? exc_invalid_op+0x14/0x70 039062] Modules linked in: fuse ip_tables cros_ec_lid_angle cros<4>[ 49.466462] ? asm_exc_invalid_op+0x12/0x20 _ec_sensors cros_ec_sensors_core industrialio_triggered_buffer k<4>[ 49.477643] ? refcount_warn_saturate+0xba/0x110 fifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros<4>[ 49.489305] __refcount_sub_and_test.constprop.0+0x3c/0x50 _ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs v<4>[ 49.501939] lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE+0x3e/0x78 ideobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memop<4>[ 49.514670] direct_entry.cold+0x2c/0x38 s cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_tem<4>[ 49.525559] full_proxy_write+0x53/0x80 p_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_us<4>[ 49.536349] vfs_write+0xe7/0x3b0 bpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cro<4>[ 49.546556] ksys_write+0x68/0xf0 s_kbd_led_backlight # [ 40.091840] CR2: 0000000000000000 # [<4>[ 49.556764] do_syscall_64+0x30/0x40 40.095830] ---[ end trace 19f7a216b67dc052 ]--- # [ 40.101<4>[ 49.567263] entry_SYSCALL_64_after_hwframe+0x61/0xc6 280] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 40.105953] Code: 89 ff <4>[ 49.579413] RIP: 0033:0x7efc50575473 e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c<4>[ 49.589913] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b <4>[ 49.617406] RSP: 002b:00007ffdef6b1458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 49.632370] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007efc50575473 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [<4>[ 49.640635] RDX: 000000000000001f RSI: 00007efc50469000 RDI: 0000000000000001 <4>[ 49.655110] RBP: 00007efc50469000 R08: 00007efc50468010 R09: 0000000000000000 40.127229] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ <4>[ 49.663376] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 49.677849] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 40.133356] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 000<4>[ 49.686120] irq event stamp: 0 0000000000000 # [ 40.141617] RDX: 0000000000000000 RSI: ffff9<4>[ 49.696025] hardirqs last enabled at (0): [<0000000000000000>] 0x0 e047ad1bf70 RDI: ffffffff90b7e850 # [ 40.149880] RBP: fffffff<4>[ 49.709535] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 49.725180] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 f9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 40.<4>[ 49.734609] softirqs last disabled at (0): [<0000000000000000>] 0x0 158143] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000<4>[ 49.748113] ---[ end trace 19f7a216b67dc05e ]--- 000000004 # [ 40.166405] R13: ffffb7dc812e7f10 R14: ffffb7dc8<6>[ 49.759775] lkdtm: Negative detected: saturated 12e7f10 R15: ffff9e0402af6000 # [ 40.174668] FS: 00007fb3d6d18580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 40.183990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 40.190699] CR2: ffffffffffffffd6 CR3: 0000000102950005 CR4: 00000000003706f0 # [ 40.198962] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 40.209167] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1757, name: cat # [ 40.217912] INFO: lockdep is turned off. # [ 40.222580] irq event stamp: 0 # [ 40.226278] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 40.233562] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 40.242991] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 40.252419] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 40.259712] CPU: 0 PID: 1757 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 40.268653] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 40.275749] Call Trace: # [ 40.278770] dump_stack+0x77/0x9b # [ 40.282765] ___might_sleep.cold+0xa6/0xb6 # [ 40.287637] exit_signals+0x1c/0x300 # [ 40.291923] do_exit+0xc2/0xab0 # [ 40.295710] ? ks<6>[ 49.890077] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_NEGATIVE ys_write+0x68/0xf0 # [ 40.299896] make_task_dead+0x2f/0x30 <6>[ 49.903530] lkdtm: attempting bad refcount_sub_and_test() below zero # [ 40.304275] rewind_stack_and_make_dead+0x17/0x20 # [ 40<4>[ 49.917136] ------------[ cut here ]------------ .309818] RIP: 0033:0x7fb3d6c2e473 # [ 40.314099] Code: 8b 15 <4>[ 49.928795] refcount_t: underflow; use-after-free. 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 6<4>[ 49.940668] WARNING: CPU: 1 PID: 2200 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 4 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d <4>[ 49.956591] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [<4>[ 50.015551] CPU: 1 PID: 2200 Comm: cat Tainted: G D W 5.10.182-cip35 #1 40.335376] RSP: 002b:00007fff5af44838 EFLAGS: 00000246 ORIG_R<4>[ 50.030729] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 AX: 0000000000000001 # [ 40.344125] RAX: ffffffffffffffda RBX<4>[ 50.044047] RIP: 0010:refcount_warn_saturate+0xba/0x110 : 000000000000000a RCX: 00007fb3d6c2e473 # [ 40.352388] RDX: <4>[ 50.056388] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 000000000000000a RSI: 00007fb3d6b22000 RDI: 0000000000000001 # <4>[ 50.083902] RSP: 0018:ffffb7dc82ac7e40 EFLAGS: 00010286 [ 40.360651] RBP: 00007fb3d6b22000 R08: 00007fb3d6b21010 R09: <4>[ 50.096227] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 0000000000000000 0000000000000000 # [ 40.368912] R10: fffffffffffffbc5 R11: 00<4>[ 50.110704] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 00000000000246 R12: 0000000000000001 # [ 40.377175] R13: 0000<4>[ 50.125184] RBP: ffffffff90ff8c60 R08: 0000000000000000 R09: 0000000000000000 000000000001 R14: 0000000000020000 R15: 0000000000020000 # EXEC<4>[ 50.139688] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f _NULL: saw 'call trace:': ok ok 36 selftests: lkdtm: EXEC_NULL.<4>[ 50.154167] R13: ffffb7dc82ac7f10 R14: ffffb7dc82ac7f10 R15: ffff9e0402afa000 sh # selftests: lkdtm: ACCESS_USERSPACE.sh # Killed # [ 40.<4>[ 50.168648] FS: 00007f6244847580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 <4>[ 50.184193] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 528379] lkdtm: Performing direct entry ACCESS_USERSPACE # [ 4<4>[ 50.190905] CR2: 00007f6244651000 CR3: 00000001032d8002 CR4: 00000000003706e0 0.541147] lkdtm: attempting bad read at 00007fcc5e144000 # [ <4>[ 50.205377] Call Trace: 40.547581] BUG: unable to handle page fault for address: 00007fc<4>[ 50.214619] ? __warn+0x80/0x110 c5e144000 # [ 40.555576] #PF: supervisor read access in kerne<4>[ 50.224741] ? refcount_warn_saturate+0xba/0x110 l mode # [ 40.567818] #PF: error_code(0x0001) - permissions v<4>[ 50.236403] ? report_bug+0x9e/0xc0 iolation # [ 40.574333] PGD 80000001030fb067 P4D 80000001030f<4>[ 50.246805] ? handle_bug+0x41/0x90 b067 PUD 102fc3067 PMD 102950067 PTE 10ac4b067 # [ 40.590566]<4>[ 50.257204] ? exc_invalid_op+0x14/0x70 Oops: 0001 [#12] SMP PTI # [ 40.594838] CPU: 3 PID: 1792 Com<4>[ 50.267995] ? asm_exc_invalid_op+0x12/0x20 m: cat Tainted: G D W 5.10.182-cip35 #1 # [ 40.6<4>[ 50.279173] ? refcount_warn_saturate+0xba/0x110 03782] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # <4>[ 50.290833] __refcount_sub_and_test.constprop.0+0x3c/0x50 [ 40.610883] RIP: 0010:lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 <4>[ 50.303473] lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE+0x3e/0x7b # [ 40.617398] Code: 00 00 00 75 64 48 83 c4 10 5d c3 cc cc cc<4>[ 50.316202] direct_entry.cold+0x2c/0x38 cc 48 89 ee 48 c7 c7 88 9e ff 90 e8 ef d7 fb ff 48 c7 c7 b0 9e <4>[ 50.327088] full_proxy_write+0x53/0x80 ff 90 b8 de c0 de c0 <48> 03 45 00 48 89 04 24 e8 d6 d7 fb ff 48<4>[ 50.337877] vfs_write+0xe7/0x3b0 89 ee 48 c7 c7 d8 9e ff # [ 40.638682] RSP: 0018:ffffb7dc824<4>[ 50.348083] ksys_write+0x68/0xf0 cfe48 EFLAGS: 00010246 # [ 40.644807] RAX: 00000000c0dec0de R<4>[ 50.358292] do_syscall_64+0x30/0x40 <4>[ 50.368789] entry_SYSCALL_64_after_hwframe+0x61/0xc6 BX: 0000000000000026 RCX: 0000000000000000 # [ 40.653069] RDX<4>[ 50.374738] RIP: 0033:0x7f624475d473 <4>[ 50.385229] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 : 0000000000000000 RSI: ffff9e047ad9bf70 RDI: ffffffff90ff9eb0 <4>[ 50.406506] RSP: 002b:00007ffe53218b18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 50.421464] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f624475d473 # [ 40.661332] RBP: 00007fcc5e144000 R08: 0000000000000000 R09<4>[ 50.429731] RDX: 000000000000001f RSI: 00007f6244651000 RDI: 0000000000000001 <4>[ 50.444203] RBP: 00007f6244651000 R08: 00007f6244650010 R09: 0000000000000000 : 0000000000000000 # [ 40.669594] R10: 00000000ffffe000 R11: <4>[ 50.452466] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 3fffffffffffffff R12: 0000000000000011 # [ 40.677854] R13: ff<4>[ 50.466944] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ffb7dc824cff10 R14: ffffb7dc824cff10 R15: ffff9e040267d000 # [ <4>[ 50.481427] irq event stamp: 0 <4>[ 50.491339] hardirqs last enabled at (0): [<0000000000000000>] 0x0 40.686117] FS: 00007fcc5e115580(0000) GS:ffff9e047ad80000(000<4>[ 50.498634] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 50.514270] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 0) knlGS:0000000000000000 # [ 40.695446] CS: 0010 DS: 0000 E<4>[ 50.523702] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 50.537200] ---[ end trace 19f7a216b67dc05f ]--- <6>[ 50.542649] lkdtm: Negative detected: saturated S: 0000 CR0: 0000000080050033 # [ 40.702152] CR2: 00007fcc5e144000 CR3: 0000000105ec0002 CR4: 00000000003706e0 # [ 40.710412] Call Trace: # [ 40.713432] ? __die_body.cold+0x1a/0x1f # [ 40.718100] ? no_context+0x177/0x380 # [ 40.722472] ? exc_page_fault+0x53/0x170 # [ 40.727140] ? asm_exc_page_fault+0x1e/0x30 # [ 40.732104] ? lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 # [ 40.737938] ? lkdtm_ACCESS_USERSPACE.cold+0x35/0xa3 # [ 40.743771] direct_entry.cold+0x2c/0x38 # [ 40.748442] full_proxy_write+0x53/0x80 # [ 40.753014] vfs_write+0xe7/0x3b0 # [ 40.757004] ksys_write+0x68/0xf0 # [ 40.760984] do_syscall_64+0x30/0x40 # [ 40.765263] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 40.771194] RIP: 0033:0x7fcc5e02b473 # [ 40.775473] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 40.796749] RSP: 002b:00007ffd61857d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 40.805495] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007fcc5e02b473 # [ 40.813757] RDX: 0000000000000011 RSI: 00007fcc5df<6>[ 50.662519] lkdtm: Performing direct entry REFCOUNT_INC_ZERO 1f000 RDI: 0000000000000001 # [ 40.822018] RBP: 00007fcc5df1f<6>[ 50.672749] lkdtm: attempting safe refcount_inc_not_zero() from zero 000 R08: 00007fcc5df1e010 R09: 0000000000000000 # [ 40.830278<6>[ 50.686359] lkdtm: Good: zero detected ] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000<6>[ 50.697049] lkdtm: Correctly stayed at zero 001 # [ 40.838540] R13: 0000000000000001 R14: 000000000002000<6>[ 50.708228] lkdtm: attempting bad refcount_inc() from zero 0 R15: 0000000000020000 # [ 40.846805] Modules linked in: fus<4>[ 50.720864] ------------[ cut here ]------------ <4>[ 50.732527] refcount_t: addition on 0; use-after-free. e ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_co<4>[ 50.738587] WARNING: CPU: 1 PID: 2232 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 re industrialio_triggered_buffer kfifo_buf industrialio snd_soc_<4>[ 50.754511] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub<4>[ 50.813466] CPU: 1 PID: 2232 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 50.828602] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core <4>[ 50.835706] RIP: 0010:refcount_warn_saturate+0x74/0x110 <4>[ 50.848038] Code: 01 01 e8 26 ee c0 00 0f 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 90 c6 05 ed f1 f6 01 01 e8 03 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_<4>[ 50.869316] RSP: 0018:ffffb7dc82a4fe48 EFLAGS: 00010286 <4>[ 50.881653] RAX: 0000000000000000 RBX: 0000000000000033 RCX: 0000000000000000 v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_<4>[ 50.889941] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 <4>[ 50.904413] RBP: ffffffff90ff9001 R08: 0000000000000000 R09: 0000000000000000 dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid <4>[ 50.912685] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 50.927159] R13: ffffb7dc82a4ff10 R14: ffffb7dc82a4ff10 R15: ffff9e0403e67000 coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 40.<4>[ 50.935425] FS: 00007f4fdee91580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 <4>[ 50.950966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 905801] CR2: 00007fcc5e144000 # [ 40.909789] ---[ end trace 1<4>[ 50.957678] CR2: 00007f4fdec9b000 CR3: 0000000105b68005 CR4: 00000000003706e0 9f7a216b67dc053 ]--- # [ 40.915235] RIP: 0010:lkdtm_BUG+0x5/0<4>[ 50.972160] Call Trace: x10 # [ 40.919902] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff <4>[ 50.981404] ? __warn+0x80/0x110 ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff f<4>[ 50.991509] ? refcount_warn_saturate+0x74/0x110 <4>[ 51.003172] ? report_bug+0x9e/0xc0 f ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f <4>[ 51.007358] ? handle_bug+0x41/0x90 <4>[ 51.017752] ? exc_invalid_op+0x14/0x70 1f 44 00 00 83 05 50 56 e9 02 # [ 40.941177] RSP: 0018:ffffb7<4>[ 51.022328] ? asm_exc_invalid_op+0x12/0x20 dc812e7e60 EFLAGS: 00010282 # [ 40.947302] RAX: ffffffff8fb79<4>[ 51.033504] ? refcount_warn_saturate+0x74/0x110 <4>[ 51.045165] ? refcount_warn_saturate+0x74/0x110 540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 40.955563<4>[ 51.050617] lkdtm_REFCOUNT_INC_ZERO+0x99/0xc1 <4>[ 51.062078] direct_entry.cold+0x2c/0x38 ] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e<4>[ 51.066752] full_proxy_write+0x53/0x80 850 # [ 40.963822] RBP: ffffffff9105d410 R08: 000000000000000<4>[ 51.077537] vfs_write+0xe7/0x3b0 <4>[ 51.087748] ksys_write+0x68/0xf0 1 R09: 0000000000000001 # [ 40.972084] R10: 00000000ffffe000 <4>[ 51.091746] do_syscall_64+0x30/0x40 R11: 3fffffffffffffff R12: 0000000000000004 # [ 40.980346] R1<4>[ 51.102239] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 51.114388] RIP: 0033:0x7f4fdeda7473 3: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 51.118686] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 51.146170] RSP: 002b:00007fff9e8c1278 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 40.988608] FS: 00007fcc5e115580(0000) GS:ffff9e047ad8000<4>[ 51.154920] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f4fdeda7473 <4>[ 51.169392] RDX: 0000000000000012 RSI: 00007f4fdec9b000 RDI: 0000000000000001 0(0000) knlGS:0000000000000000 # [ 40.997936] CS: 0010 DS: 0<4>[ 51.177658] RBP: 00007f4fdec9b000 R08: 00007f4fdec9a010 R09: 0000000000000000 <4>[ 51.192133] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 000 ES: 0000 CR0: 0000000080050033 # [ 41.004644] CR2: 00007f<4>[ 51.200400] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 cc5e144000 CR3: 0000000105ec0002 CR4: 00000000003706e0 # ACCESS<4>[ 51.214877] irq event stamp: 0 <4>[ 51.224790] hardirqs last enabled at (0): [<0000000000000000>] 0x0 _USERSPACE: saw 'call trace:': ok ok 37 selftests: lkdtm: ACCES<4>[ 51.232086] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 S_USERSPACE.sh # selftests: lkdtm: ACCESS_NULL.sh # Killed # <4>[ 51.247727] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 [ 41.120731] lkdtm: Performing direct entry ACCESS_NULL # [ <4>[ 51.263371] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 51.276878] ---[ end trace 19f7a216b67dc060 ]--- 41.130857] lkdtm: attempting bad read at 0000000000000000 # [ <6>[ 51.282327] lkdtm: Zero detected: saturated 41.143523] BUG: kernel NULL pointer dereference, address: 0000000000000000 # [ 41.157767] #PF: supervisor read access in kernel mode # [ 41.163794] #PF: error_code(0x0000) - not-present page # [ 41.169822] PGD 0 P4D 0 # [ 41.172939] Oops: 0000 [#13] SMP PTI # [ 41.177218] CPU: 0 PID: 1827 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 41.186160] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 41.193260] RIP: 0010:lkdtm_ACCESS_NULL+0x14/0x53 # [ 41.198808] Code: 93 d7 fb ff be 00 10 00 00 48 89 ef e8 35 75 0f ff e9 69 ff ff ff 0f 1f 44 00 00 53 31 f6 48 c7 c7 88 9e ff 90 e8 6d d7 fb ff <48> 8b 1c 25 00 00 00 00 b8 de c0 de c0 48 c7 c7 b0 9e ff 90 48 01 # [ 41.220078] RSP: 0018:ffffb7dc8255fe58 EFLAGS: 00010246 # [ 41.226195] RAX: 000000000000002e RBX: 0000000000000027 RCX: 0000000000000000 # [ 41.234458] RDX: 0000000000000000 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 # [ 41.242720] RBP: ffffffff90ff8f79 R08: 0000000000000000 R09: 0000000000000000 # [ 41.250974] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c # [ 41.259236] R13: ffffb7dc8255ff10 R14: ffffb7dc8255ff10 R15: ffff9e0405c7f000 # [ 41.267499] FS: 00007f84d4dc1580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000<6>[ 51.412295] lkdtm: Performing direct entry REFCOUNT_ADD_ZERO 000000 # [ 41.276821] CS: 0010 DS: 0000 ES: 0000 CR0: 000000<6>[ 51.424548] lkdtm: attempting safe refcount_add_not_zero() from zero 0080050033 # [ 41.283520] CR2: 0000000000000000 CR3: 00000001<6>[ 51.438182] lkdtm: Good: zero detected 032c8005 CR4: 00000000003706f0 # [ 41.291783] Call Trace: # <6>[ 51.448865] lkdtm: Correctly stayed at zero [ 41.294803] ? __die_body.cold+0x1a/0x1f # [ 41.299479] ?<6>[ 51.460006] lkdtm: attempting bad refcount_add() from zero <4>[ 51.472639] ------------[ cut here ]------------ no_context+0x177/0x380 # [ 41.303865] ? exc_page_fault+0x53<4>[ 51.478095] refcount_t: addition on 0; use-after-free. /0x170 # [ 41.308542] ? asm_exc_page_fault+0x1e/0x30 # [ <4>[ 51.490387] WARNING: CPU: 0 PID: 2264 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 41.313505] ? lkdtm_ACCESS_NULL+0x14/0x53 # [ 41.318375] ? l<4>[ 51.506307] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight kdtm_ACCESS_NULL+0x14/0x53 # [ 41.323229] direct_entry.cold+<4>[ 51.565268] CPU: 0 PID: 2264 Comm: cat Tainted: G D W 5.10.182-cip35 #1 0x2c/0x38 # [ 41.327901] full_proxy_write+0x53/0x80 # [ 4<4>[ 51.580468] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 1.332480] vfs_write+0xe7/0x3b0 # [ 41.336475] ksys_write+0x<4>[ 51.593747] RIP: 0010:refcount_warn_saturate+0x74/0x110 68/0xf0 # [ 41.340468] do_syscall_64+0x30/0x40 # [ 41.344<4>[ 51.606128] Code: 01 01 e8 26 ee c0 00 0f 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 90 c6 05 ed f1 f6 01 01 e8 03 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 754] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 41.350686]<4>[ 51.633599] RSP: 0018:ffffb7dc82b87e48 EFLAGS: 00010286 RIP: 0033:0x7f84d4cd7473 # [ 41.354959] Code: 8b 15 21 2a 0e<4>[ 51.645966] RAX: 0000000000000000 RBX: 0000000000000034 RCX: 0000000000000000 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 <4>[ 51.660417] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff<4>[ 51.674908] RBP: ffffffff90ff9013 R08: 0000000000000000 R09: 0000000000000000 ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 41.37<4>[ 51.689389] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 6237] RSP: 002b:00007ffd1b699498 EFLAGS: 00000246 ORIG_RAX: 0000<4>[ 51.703878] R13: ffffb7dc82b87f10 R14: ffffb7dc82b87f10 R15: ffff9e0405ff2000 000000000001 # [ 41.384986] RAX: ffffffffffffffda RBX: 000000<4>[ 51.718348] FS: 00007faaa2ca0580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 000000000c RCX: 00007f84d4cd7473 # [ 41.393248] RDX: 00000000<4>[ 51.733903] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 0000000c RSI: 00007f84d4bcb000 RDI: 0000000000000001 # [ 41.4<4>[ 51.746824] CR2: 00007faaa2aaa000 CR3: 0000000102958006 CR4: 00000000003706f0 01510] RBP: 00007f84d4bcb000 R08: 00007f84d4bca010 R09: 00000000<4>[ 51.761312] Call Trace: 00000000 # [ 41.409772] R10: fffffffffffffbc5 R11: 0000000000<4>[ 51.770549] ? __warn+0x80/0x110 000246 R12: 0000000000000001 # [ 41.418034] R13: 000000000000<4>[ 51.780666] ? refcount_warn_saturate+0x74/0x110 0001 R14: 0000000000020000 R15: 0000000000020000 # [ 41.42629<4>[ 51.792325] ? report_bug+0x9e/0xc0 9] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_s<4>[ 51.802741] ? handle_bug+0x41/0x90 ensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_<4>[ 51.813134] ? exc_invalid_op+0x14/0x70 buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_l<4>[ 51.823940] ? asm_exc_invalid_op+0x12/0x20 ightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videob<4>[ 51.835119] ? refcount_warn_saturate+0x74/0x110 uf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cro<4>[ 51.846810] ? refcount_warn_saturate+0x74/0x110 s_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_the<4>[ 51.858457] lkdtm_REFCOUNT_ADD_ZERO+0x99/0xc1 rmal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_n<4>[ 51.869937] direct_entry.cold+0x2c/0x38 otify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd<4>[ 51.880821] full_proxy_write+0x53/0x80 _led_backlight # [ 41.479073] CR2: 0000000000000000 # [ 41<4>[ 51.891621] vfs_write+0xe7/0x3b0 .483063] ---[ end trace 19f7a216b67dc054 ]--- # [ 41.488511] <4>[ 51.901823] ksys_write+0x68/0xf0 RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 41.493186] Code: 89 ff e8 3e<4>[ 51.912047] do_syscall_64+0x30/0x40 e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc <4>[ 51.922537] entry_SYSCALL_64_after_hwframe+0x61/0xc6 cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f<4>[ 51.934697] RIP: 0033:0x7faaa2bb6473 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 41<4>[ 51.945193] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 .514463] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 41.5<4>[ 51.972713] RSP: 002b:00007fff682a1578 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 20580] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 00000000<4>[ 51.987671] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007faaa2bb6473 00000000 # [ 41.528841] RDX: 0000000000000000 RSI: ffff9e047a<4>[ 52.002169] RDX: 0000000000000012 RSI: 00007faaa2aaa000 RDI: 0000000000000001 d1bf70 RDI: ffffffff90b7e850 # [ 41.537104] RBP: ffffffff9105<4>[ 52.016643] RBP: 00007faaa2aaa000 R08: 00007faaa2aa9010 R09: 0000000000000000 d410 R08: 0000000000000001 R09: 0000000000000001 # [ 41.54536<4>[ 52.031150] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 6] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000<4>[ 52.045612] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 0004 # [ 41.553628] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f<4>[ 52.060111] irq event stamp: 0 10 R15: ffff9e0402af6000 # [ 41.561889] FS: 00007f84d4dc1580<4>[ 52.070010] hardirqs last enabled at (0): [<0000000000000000>] 0x0 (0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 4<4>[ 52.083508] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 1.571220] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [<4>[ 52.099175] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 41.577927] CR2: 0000000000000000 CR3: 00000001032c8005 CR4: 0<4>[ 52.114806] softirqs last disabled at (0): [<0000000000000000>] 0x0 0000000003706f0 # [ 41.586190] BUG: sleeping function called <4>[ 52.128335] ---[ end trace 19f7a216b67dc061 ]--- from invalid context at include/linux/percpu-rwsem.h:49 # [ 4<6>[ 52.139994] lkdtm: Zero detected: saturated 1.596394] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1827, name: cat # [ 41.605143] INFO: lockdep is turned off. # [ 41.609810] irq event stamp: 0 # [ 41.613505] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 41.620796] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 41.630224] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 41.639652] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 41.646945] CPU: 0 PID: 1827 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 41.655887] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 41.662985] Call Trace: # [ 41.666004] dump_stack+0x77/0x9b # [ 41.669996] ___might_sleep.cold+0xa6/0xb6 # [ 41.674860] exit_signals+0x1c/0x300 # [ 41.679147] do_exit+0xc2/0xab0 # [ 41.682943] ? ksys_write+0x68/0xf0 # [ 41.687128] make_task_dead+0x2f/0x30 # [ 41.691507] rewind_stack_and_make_dead+0x17/0x20 # [ 41.697049] RIP: 0033:0x7f84d4cd7473 # [ 41.701330] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 41.722599] RSP: 002b:00007ffd1b699498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 41.731348] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f84d4cd7473 # [ 41.739609] RDX: 000000000000000c RSI: 00007f84d4bcb000 RDI: 0000000000000001 # [ 41.747871] RBP: 00007f84d4bcb000 R08: 00007f84d4bca010 R09: 0000000000000000 # [ 41.756133] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 41.764396] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # ACCESS_NULL: saw 'call trace:': ok ok 38 selftests: lkdtm: ACCESS_NULL.sh # selftests: lkdtm: WRITE_RO.sh # Killed # [ 41.921945] lkdtm: Performing direct entry WRITE_RO # [ 41.933787] lkdtm: attempting bad rodata write at ffffffff90b7ecd0 # [ 41.947225] BUG: unable to handle page fault for address: ffffffff90b7ecd0 # [ 41.961402] #PF: supervisor write access in kernel mode # [ 41.967529] #PF: error_code(0x0003) - permissions violation # [ 41.980258] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 8000000120e000e1 # [ 41.994547] Oops: 0003 [#14] SMP PTI # [ 41.998830] CPU: 1 PID: 1862 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 42.007771] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 42.014871] RIP: 0010:lkdtm_WRITE_RO+0x2e/0x3a # [ 42.020124] Code: 00 48 c7 c7 68 9d ff 90 48 c7 c6 d0 ec b7 90 e8 17 da fb ff 48 8b 05 4f 16 97 00 ba 34 12 cd ab 48 c7 c7 98 9d ff 90 48 31 d0 <48> 89 05 39 16 97 00 e9 f5 d9 fb ff 0f 1f 44 00 00 48 8b 05 88 0c # [ 42.047611] RSP: 0018:ffffb7dc825afe60 EFLAGS: 00010202 # [ 42.053736] RAX: 000000000198b861 RBX: 0000000000000028 RCX: 0000000000000000 # [ 42.061997] RDX: 00000000abcd1234 RSI: ffff9e047ac9bf70 RDI: ffffffff90ff9d98 # [ 42.070259] RBP: ffffffff90ff8f85 R08: 0000000000000000 R09: 0000000000000000 # [ 42.078519] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000009 # [ 42.086780] R13: ffffb7dc825aff10 R14: ffffb7dc825aff10 R15: ffff9e04029c8000 # [ 42.095041] FS: 00007fb6ea840580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 42.104361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 42.111068] CR2: ffffffff90b7ecd0 CR3: 0000000103e6e003 CR4: 00000000003706e0 # [ 42.119330] Call Trace: # [ 42.122350] ? __die_body.cold+0x1a/0x1f # [ 42.127020] ? no_context+0x177/0x380 # [ 42.137610] ? exc_page_fault+0xd7/0x170 # [ 42.142281] ? asm_exc_page_fault+0x1e/0x30 # [ 42.153455] ? lkdtm_WRITE_RO+0x2e/0x3a # [ 42.158027] direct_entry.cold+0x2c/0x38 # [ 42.168912] full_proxy_write+0x53/0x80 # [ 42.173484] vfs_write+0xe7/0x3b0 # [ 42.177474] ksys_write+0x68/0xf0 # [ 42.181463] do_syscall_64+0x30/0x40 # [ 42.185742] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 42.191685] RIP: 0033:0x7fb6ea756473 # [ 42.195964] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 42.217241] RSP: 002b:00007ffe141b3398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 42.225979] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fb6ea756473 # [ 42.234239] RDX: 0000000000000009 RSI: 00007fb6ea64a000 RDI: 0000000000000001 # [ 42.242501] RBP: 00007fb6ea64a000 R08: 00007fb6ea649010 R09: 0000000000000000 # [ 42.250761] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 42.259022] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 42.267287] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 42.326247] CR2: ffffffff90b7ecd0 # [ 42.330228] ---[ end trace 19f7a216b67dc055 ]--- # [ 42.335682] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 42.340352] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 42.367840] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 42.373957] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 42.382220] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 42.390482] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 42.398744] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 42.407006] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 42.415259] FS: 00007fb6ea840580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 42.424588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 42.431296] CR2: ffffffff90b7ecd0 CR3: 0000000103e6e003 CR4: 00000000003706e0 # WRITE_RO: saw 'call trace:': ok ok 39 selftests: lkdtm: WRITE_RO.sh # selftests: lkdtm: WRITE_RO_AFTER_INIT.sh # Killed # [ 42.570012] lkdtm: Performing direct entry WRITE_RO_AFTER_INIT # [ 42.583108] lkdtm: attempting bad ro_after_init write at ffffffff9107e330 # [ 42.597232] BUG: unable to handle page fault for address: ffffffff9107e330 # [ 42.611381] #PF: supervisor write access in kernel mode # [ 42.617507] #PF: error_code(0x0003) - permissions violation # [ 42.624012] PGD 121629067 P4D 121629067 PUD 12162a063 PMD 105947063 PTE 800000012147e061 # [ 42.633343] Oops: 0003 [#15] SMP PTI # [ 42.637615] CPU: 0 PID: 1897 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 42.646558] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 42.653650] RIP: 0010:lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a # [ 42.659976] Code: 9d ff 90 e9 c9 d9 fb ff 48 c7 c7 f0 9d ff 90 e8 bd d9 fb ff 48 8b 05 55 0c e7 00 ba 34 12 cd ab 48 c7 c7 98 9d ff 90 48 31 d0 <48> 89 05 3f 0c e7 00 e9 9b d9 fb ff 0f 1f 44 00 00 41 54 48 c7 c7 # [ 42.681253] RSP: 0018:ffffb7dc8265fe60 EFLAGS: 00010202 # [ 42.687379] RAX: 00000000fe67479e RBX: 0000000000000029 RCX: 0000000000000000 # [ 42.695640] RDX: 00000000abcd1234 RSI: ffff9e047ac1bf70 RDI: ffffffff90ff9d98 # [ 42.703901] RBP: ffffffff90ff8f8e R08: 0000000000000000 R09: 0000000000000000 # [ 42.712163] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000014 # [ 42.720425] R13: ffffb7dc8265ff10 R14: ffffb7dc8265ff10 R15: ffff9e040312e000 # [ 42.728687] FS: 00007f4e6c677580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 42.738018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 42.744717] CR2: ffffffff9107e330 CR3: 0000000103376006 CR4: 00000000003706f0 # [ 42.752978] Call Trace: # [ 42.755998] ? __die_body.cold+0x1a/0x1f # [ 42.760675] ? no_context+0x177/0x380 # [ 42.765061] ? exc_page_fault+0xd7/0x170 # [ 42.769737] ? asm_exc_page_fault+0x1e/0x30 # [ 42.774700] ? lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a # [ 42.780347] direct_entry.cold+0x2c/0x38 # [ 42.785018] full_proxy_write+0x53/0x80 # [ 42.789598] vfs_write+0xe7/0x3b0 # [ 42.793589] ksys_write+0x68/0xf0 # [ 42.797580] do_syscall_64+0x30/0x40 # [ 42.801867] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 42.807799] RIP: 0033:0x7f4e6c58d473 # [ 42.812079] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 42.833356] RSP: 002b:00007fff0c558ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 42.842105] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f4e6c58d473 # [ 42.850367] RDX: 0000000000000014 RSI: 00007f4e6c481000 RDI: 0000000000000001 # [ 42.858628] RBP: 00007f4e6c481000 R08: 00007f4e6c480010 R09: 0000000000000000 # [ 42.866888] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 42.875151] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 42.883417] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 42.936197] CR2: ffffffff9107e330 # [ 42.940186] ---[ end trace 19f7a216b67dc056 ]--- # [ 42.945634] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 42.950309] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 42.971577] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 42.977701] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 42.985963] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 42.994225] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 43.002487] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 43.010749] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 43.019011] FS: 00007f4e6c677580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 43.028342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 43.035050] CR2: ffffffff9107e330 CR3: 0000000103376006 CR4: 00000000003706f0 # [ 43.043312] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 43.053518] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1897, name: cat # [ 43.062265] INFO: lockdep is turned off. # [ 43.066932] irq event stamp: 0 # [ 43.070629] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 43.077919] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 43.087340] softirqs last enabled at (0)<6>[ 53.321221] lkdtm: Performing direct entry REFCOUNT_INC_SATURATED : [] copy_process+0x664/0x1c60 # [ 43.09676<6>[ 53.330041] lkdtm: attempting bad refcount_inc() from saturated 6] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ <4>[ 53.343177] ------------[ cut here ]------------ 43.104059] CPU: 0 PID: 1897 Comm: cat Tainted: G D W <4>[ 53.354832] refcount_t: saturated; leaking memory. 5.10.182-cip35 #1 # [ 43.112992] Hardware name: Google Ra<4>[ 53.366700] WARNING: CPU: 1 PID: 2299 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 mmus/Rammus, BIOS 09/04/2020 # [ 43.120089] Call Trace: # [<4>[ 53.382625] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight 43.123107] dump_stack+0x77/0x9b # [ 43.127097] ___might_<4>[ 53.441587] CPU: 1 PID: 2299 Comm: cat Tainted: G D W 5.10.182-cip35 #1 sleep.cold+0xa6/0xb6 # [ 43.131962] exit_signals+0x1c/0x300 <4>[ 53.456749] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 43.136250] do_exit+0xc2/0xab0 # [ 43.140045] ? ksys_<4>[ 53.470063] RIP: 0010:refcount_warn_saturate+0x51/0x110 write+0x68/0xf0 # [ 43.144228] make_task_dead+0x2f/0x30 # [<4>[ 53.482405] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 43.148599] rewind_stack_and_make_dead+0x17/0x20 # [ 43.15<4>[ 53.509895] RSP: 0018:ffffb7dc82c37e48 EFLAGS: 00010286 4143] RIP: 0033:0x7f4e6c58d473 # [ 43.158416] Code: 8b 15 21 <4>[ 53.522239] RAX: 0000000000000000 RBX: 0000000000000035 RCX: 0000000000000000 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8<4>[ 53.536756] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 <4>[ 53.551239] RBP: ffffffff90ff9025 R08: 0000000000000000 R09: 0000000000000000 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ <4>[ 53.565736] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 43.179692] RSP: 002b:00007fff0c558ee8 EFLAGS: 00000246 ORIG_RAX:<4>[ 53.580216] R13: ffffb7dc82c37f10 R14: ffffb7dc82c37f10 R15: ffff9e0406566000 0000000000000001 # [ 43.188440] RAX: ffffffffffffffda RBX: 0<4>[ 53.594698] FS: 00007f6ee3832580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 000000000000014 RCX: 00007f4e6c58d473 # [ 43.196703] RDX: 000<4>[ 53.610248] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 0000000000014 RSI: 00007f4e6c481000 RDI: 0000000000000001 # [ <4>[ 53.623174] CR2: 00007f6ee363c000 CR3: 00000001030fe004 CR4: 00000000003706e0 43.204964] RBP: 00007f4e6c481000 R08: 00007f4e6c480010 R09: 000<4>[ 53.637672] Call Trace: 0000000000000 # [ 43.213225] R10: fffffffffffffbc5 R11: 00000<4>[ 53.646920] ? __warn+0x80/0x110 00000000246 R12: 0000000000000001 # [ 43.221486] R13: 0000000<4>[ 53.657033] ? refcount_warn_saturate+0x51/0x110 000000001 R14: 0000000000020000 R15: 0000000000020000 # WRITE_R<4>[ 53.668697] ? report_bug+0x9e/0xc0 O_AFTER_INIT: saw 'call trace:': ok ok 40 selftests: lkdtm: WRI<4>[ 53.679090] ? handle_bug+0x41/0x90 TE_RO_AFTER_INIT.sh # selftests: lkdtm: WRITE_KERN.sh # Killed<4>[ 53.689488] ? exc_invalid_op+0x14/0x70 # [ 43.350967] lkdtm: Performing direct entry WRITE_KERN # <4>[ 53.700279] ? asm_exc_invalid_op+0x12/0x20 [ 43.360018] lkdtm: attempting bad 6896875 byte write at fffff<4>[ 53.711457] ? refcount_warn_saturate+0x51/0x110 fff9020d5fb # [ 43.374037] BUG: unable to handle page fault f<4>[ 53.723117] ? refcount_warn_saturate+0x51/0x110 or address: ffffffff9020d5fb # [ 43.388185] #PF: supervisor w<4>[ 53.734779] lkdtm_REFCOUNT_INC_SATURATED+0x3c/0x64 rite access in kernel mode # [ 43.394311] #PF: error_code(0x0<4>[ 53.746741] direct_entry.cold+0x2c/0x38 003) - permissions violation # [ 43.400825] PGD 121629067 P4D<4>[ 53.757627] full_proxy_write+0x53/0x80 121629067 PUD 12162a063 PMD 1206000e1 # [ 43.408222] Oops: <4>[ 53.768415] vfs_write+0xe7/0x3b0 0003 [#16] SMP PTI # [ 43.412494] CPU: 0 PID: 1932 Comm: cat <4>[ 53.778620] ksys_write+0x68/0xf0 Tainted: G D W 5.10.182-cip35 #1 # [ 43.421437] <4>[ 53.788827] do_syscall_64+0x30/0x40 Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 43.<4>[ 53.799322] entry_SYSCALL_64_after_hwframe+0x61/0xc6 428537] RIP: 0010:lkdtm_WRITE_KERN+0x38/0x4e # [ 43.433980] C<4>[ 53.811469] RIP: 0033:0x7f6ee3748473 ode: 53 48 c7 c3 fb d5 20 90 49 89 dc 48 89 da 49 81 ec 10 99 b7<4>[ 53.821964] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 8f 4c 89 e6 e8 70 d9 fb ff 48 89 df 4c 89 e1 48 c7 c6 10 99 b7 <4>[ 53.849454] RSP: 002b:00007ffc83298148 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 8f a4 48 c7 c7 98 9d ff 90 e8 55 d9 fb ff 5b 41 5c e9 b7 fe<4>[ 53.864418] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f6ee3748473 ff ff # [ 43.455257] RSP: 0018:ffffb7dc826d7e50 EFLAGS: 0001<4>[ 53.878899] RDX: 0000000000000017 RSI: 00007f6ee363c000 RDI: 0000000000000001 0246 # [ 43.461382] RAX: 000000000000003c RBX: ffffffff9020d5<4>[ 53.893381] RBP: 00007f6ee363c000 R08: 00007f6ee363b010 R09: 0000000000000000 fb RCX: 0000000000693ceb # [ 43.469644] RDX: 0000000000000000<4>[ 53.907858] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 RSI: ffffffff8fb79910 RDI: ffffffff9020d5fb # [ 43.477905] R<4>[ 53.922338] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 BP: ffffffff90ff8fa2 R08: 0000000000000000 R09: 0000000000000000<4>[ 53.936819] irq event stamp: 0 # [ 43.486169] R10: 00000000ffffe000 R11: 3fffffffffffffff R<4>[ 53.946743] hardirqs last enabled at (0): [<0000000000000000>] 0x0 12: 0000000000693ceb # [ 43.494429] R13: ffffb7dc826d7f10 R14<4>[ 53.960250] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 : ffffb7dc826d7f10 R15: ffff9e0405eb9000 # [ 43.502691] FS: <4>[ 53.975893] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 00007f231804c580(0000) GS:ffff9e047ac00000(0000) knlGS:000000000<4>[ 53.991536] softirqs last disabled at (0): [<0000000000000000>] 0x0 0000000 # [ 43.512022] CS: 0010 DS: 0000 ES: 0000 CR0: 00000<4>[ 54.005044] ---[ end trace 19f7a216b67dc062 ]--- 00080050033 # [ 43.518730] CR2: ffffffff9020d5fb CR3: 0000000<6>[ 54.016707] lkdtm: Saturation detected: still saturated 102aba002 CR4: 00000000003706f0 # [ 43.526993] Call Trace: # [ 43.530013] ? __die_body.cold+0x1a/0x1f # [ 43.534690] ? no_context+0x177/0x380 # [ 43.539076] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 43.544820] ? exc_page_fault+0xd7/0x170 # [ 43.549490] ? asm_exc_page_fault+0x1e/0x30 # [ 43.554451] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 43.560189] ? lkdtm_SLAB_FREE_PAGE+0x40/0x40 # [ 43.565349] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 43.571086] ? lkdtm_WRITE_KERN+0x38/0x4e # [ 43.575855] direct_entry.cold+0x2c/0x38 # [ 43.580525] full_proxy_write+0x53/0x80 # [ 43.585105] vfs_write+0xe7/0x3b0 # [ 43.589093] ksys_write+0x68/0xf0 # [ 43.593084] do_syscall_64+0x30/0x40 # [ 43.597370] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 43.603303] RIP: 0033:0x7f2317f62473 # [ 43.607575] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 43.628850] RSP: 002b:00007fffbf16c7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 43.637598] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f2317f62473 # [ 43.645861] RDX: 000000000000000b RSI: 0<6>[ 54.151799] lkdtm: Performing direct entry REFCOUNT_DEC_SATURATED 0007f2317e56000 RDI: 0000000000000001 # [ 43.654124] RBP: 000<6>[ 54.160516] lkdtm: attempting bad refcount_dec() from saturated 07f2317e56000 R08: 00007f2317e55010 R09: 0000000000000000 # [ <4>[ 54.173664] ------------[ cut here ]------------ 43.662386] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 000<4>[ 54.185317] refcount_t: decrement hit 0; leaking memory. 0000000000001 # [ 43.670648] R13: 0000000000000001 R14: 00000<4>[ 54.197757] WARNING: CPU: 0 PID: 2334 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 00000020000 R15: 0000000000020000 # [ 43.678915] Modules link<4>[ 54.213747] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight ed in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_<4>[ 54.272645] CPU: 0 PID: 2334 Comm: cat Tainted: G D W 5.10.182-cip35 #1 sensors_core industrialio_triggered_buffer kfifo_buf industriali<4>[ 54.287860] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 o snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec<4>[ 54.301177] RIP: 0010:refcount_warn_saturate+0xfb/0x110 _sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd<4>[ 54.313498] Code: d8 3f f5 90 c6 05 7d f1 f6 01 01 e8 96 ed c0 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 3f f5 90 c6 05 64 f1 f6 01 01 e8 7c ed c0 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b _soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger <4>[ 54.340996] RSP: 0018:ffffb7dc82cc7e48 EFLAGS: 00010286 videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_de<4>[ 54.353316] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 0000000000000000 v snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2<4>[ 54.367803] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 54.382301] RBP: ffffffff90ff903c R08: 0000000000000000 R09: 0000000000000000 # [ 43.731694] CR2: ffffffff9020d5fb # [ 43.735684] ---[ e<4>[ 54.396793] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 nd trace 19f7a216b67dc057 ]--- # [ 43.741132] RIP: 0010:lkdtm<4>[ 54.411260] R13: ffffb7dc82cc7f10 R14: ffffb7dc82cc7f10 R15: ffff9e0402ec1000 _BUG+0x5/0x10 # [ 43.745792] Code: 89 ff e8 3e e6 79 ff 48 c7<4>[ 54.425762] FS: 00007f0ba9822580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 <4>[ 54.441293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00<4>[ 54.454262] CR2: 00007f0ba962c000 CR3: 00000001030e2003 CR4: 00000000003706f0 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 43.767070] RSP: 0<4>[ 54.468730] Call Trace: 018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 43.773195] RAX: fff<4>[ 54.477974] ? __warn+0x80/0x110 fffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ <4>[ 54.488041] ? refcount_warn_saturate+0xfb/0x110 43.781458] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: fff<4>[ 54.499702] ? report_bug+0x9e/0xc0 fffff90b7e850 # [ 43.789720] RBP: ffffffff9105d410 R08: 00000<4>[ 54.510119] ? handle_bug+0x41/0x90 00000000001 R09: 0000000000000001 # [ 43.797982] R10: 0000000<4>[ 54.520507] ? exc_invalid_op+0x14/0x70 0ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 43.<4>[ 54.531300] ? asm_exc_invalid_op+0x12/0x20 806245] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0<4>[ 54.542495] ? refcount_warn_saturate+0xfb/0x110 402af6000 # [ 43.814506] FS: 00007f231804c580(0000) GS:ffff9<4>[ 54.554162] ? refcount_warn_saturate+0xfb/0x110 e047ac00000(0000) knlGS:0000000000000000 # [ 43.823838] CS: <4>[ 54.565789] lkdtm_REFCOUNT_DEC_SATURATED+0x37/0x5f 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 43.830537] C<4>[ 54.577786] direct_entry.cold+0x2c/0x38 R2: ffffffff9020d5fb CR3: 0000000102aba002 CR4: 00000000003706f0<4>[ 54.588691] full_proxy_write+0x53/0x80 # [ 43.838800] BUG: sleeping function called from invalid co<4>[ 54.599480] vfs_write+0xe7/0x3b0 ntext at include/linux/percpu-rwsem.h:49 # [ 43.849004] in_at<4>[ 54.609697] ksys_write+0x68/0xf0 omic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1932, name: ca<4>[ 54.619924] do_syscall_64+0x30/0x40 t # [ 43.857753] INFO: lockdep is turned off. # [ 43.86241<4>[ 54.630417] entry_SYSCALL_64_after_hwframe+0x61/0xc6 2] irq event stamp: 0 # [ 43.866109] hardirqs last enabled a<4>[ 54.642571] RIP: 0033:0x7f0ba9738473 t (0): [<0000000000000000>] 0x0 # [ 43.873402] hardirqs last <4>[ 54.653055] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 54.680581] RSP: 002b:00007fff0ac62498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 43.882831] softirqs last enabled at (0): [[ 54.695535] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f0ba9738473 844>] copy_process+0x664/0x1c60 # [ 43.892250] softirqs last <4>[ 54.710014] RDX: 0000000000000017 RSI: 00007f0ba962c000 RDI: 0000000000000001 disabled at (0): [<0000000000000000>] 0x0 # [ 43.899542] CPU:<4>[ 54.724532] RBP: 00007f0ba962c000 R08: 00007f0ba962b010 R09: 0000000000000000 0 PID: 1932 Comm: cat Tainted: G D W 5.10.182-cip3<4>[ 54.738996] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 5 #1 # [ 43.908485] Hardware name: Google Rammus/Rammus, BIOS<4>[ 54.753512] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 09/04/2020 # [ 43.915583] Call Trace: # [ 43.918602] du<4>[ 54.768011] irq event stamp: 0 mp_stack+0x77/0x9b # [ 43.922597] ___might_sleep.cold+0xa6/0<4>[ 54.777931] hardirqs last enabled at (0): [<0000000000000000>] 0x0 xb6 # [ 43.927469] exit_signals+0x1c/0x300 # [ 43.931755]<4>[ 54.791427] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 do_exit+0xc2/0xab0 # [ 43.935550] ? ksys_write+0x68/0xf0 <4>[ 54.807073] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 43.939727] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ <4>[ 54.822744] softirqs last disabled at (0): [<0000000000000000>] 0x0 43.945465] make_task_dead+0x2f/0x30 # [ 43.949843] rewind_s<4>[ 54.836277] ---[ end trace 19f7a216b67dc063 ]--- tack_and_make_dead+0x17/0x20 # [ 43.955384] RIP: 0033:0x7f231<6>[ 54.847938] lkdtm: Saturation detected: still saturated 7f62473 # [ 43.959665] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 43.980934] RSP: 002b:00007fffbf16c7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 43.989674] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f2317f62473 # [ 43.997934] RDX: 000000000000000b RSI: 00007f2317e56000 RDI: 0000000000000001 # [ 44.006195] RBP: 00007f2317e56000 R08: 00007f2317e55010 R09: 0000000000000000 # [ 44.014456] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 44.022719] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # WRITE_KERN: saw 'call trace:': ok ok 41 selftests: lkdtm: WRITE_KERN.sh # selftests: lkdtm: REFCOUNT_INC_OVERFLOW.sh # [ 44.211880] lkdtm: Performing direct entry REFCOUNT_INC_OVERFLOW # [ 44.224490] lkdtm: attempting good refcount_inc() without overflow # [ 44.237896] lkdtm: attempting bad refcount_inc() overflow # [ 44.250435] ------------[ cut here ]------------ # [ 44.262128] refcount_t: saturated; leaking memory. # [ 44.274000] WARNING: CPU: 0 PID: 1967 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 44.289917] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_p<6>[ 55.018353] lkdtm: Performing direct entry REFCOUNT_ADD_SATURATED kg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common c<6>[ 55.029123] lkdtm: attempting bad refcount_dec() from saturated ros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_psto<4>[ 55.042274] ------------[ cut here ]------------ re cros_kbd_led_backlight # [ 44.348905] CPU: 0 PID: 1967 Com<4>[ 55.053940] refcount_t: saturated; leaking memory. m: cat Tainted: G D W 5.10.182-cip35 #1 # [ 44.3<4>[ 55.065840] WARNING: CPU: 0 PID: 2369 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 64050] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # <4>[ 55.081780] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight [ 44.371184] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ <4>[ 55.140775] CPU: 0 PID: 2369 Comm: cat Tainted: G D W 5.10.182-cip35 #1 44.383570] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 <4>[ 55.155951] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 0<4>[ 55.169272] RIP: 0010:refcount_warn_saturate+0x51/0x110 1 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 <4>[ 55.181633] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 cb 48 c7 c7 50 3f f5 # [ 44.411031] RSP: 0018:ffffb7dc82767e4<4>[ 55.209181] RSP: 0018:ffffb7dc82d4fe48 EFLAGS: 00010286 8 EFLAGS: 00010286 # [ 44.423402] RAX: 0000000000000000 RBX: <4>[ 55.221494] RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000 000000000000002b RCX: 0000000000000000 # [ 44.437873] RDX: ff<4>[ 55.235990] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 ff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 # [ <4>[ 55.250448] RBP: ffffffff90ff9053 R08: 0000000000000000 R09: 0000000000000000 44.452378] RBP: ffffffff90ff8fad R08: 0000000000000000 R09: 00<4>[ 55.264972] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 00000000000000 # [ 44.466823] R10: 00000000ffffe000 R11: 3fff<4>[ 55.279407] R13: ffffb7dc82d4ff10 R14: ffffb7dc82d4ff10 R15: ffff9e04027d4000 ffffffffffff R12: 0000000000000016 # [ 44.481322] R13: ffffb7<4>[ 55.293928] FS: 00007f33be53f580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 dc82767f10 R14: ffffb7dc82767f10 R15: ffff9e0405d81000 # [ 44<4>[ 55.309444] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 .495792] FS: 00007ff127e20580(0000) GS:ffff9e047ac00000(0000) k<4>[ 55.322368] CR2: 00007f33be349000 CR3: 0000000105c7c003 CR4: 00000000003706f0 nlGS:0000000000000000 # [ 44.511353] CS: 0010 DS: 0000 ES: 0<4>[ 55.336850] Call Trace: 000 CR0: 0000000080050033 # [ 44.524261] CR2: 00007ff127c2a00<4>[ 55.346097] ? __warn+0x80/0x110 0 CR3: 00000001027fa002 CR4: 00000000003706f0 # [ 44.538769] <4>[ 55.356206] ? refcount_warn_saturate+0x51/0x110 Call Trace: # [ 44.547994] ? __warn+0x80/0x110 # [ 44.558<4>[ 55.367881] ? report_bug+0x9e/0xc0 127] ? refcount_warn_saturate+0x51/0x110 # [ 44.569776] ? r<4>[ 55.378268] ? handle_bug+0x41/0x90 eport_bug+0x9e/0xc0 # [ 44.580210] ? handle_bug+0x41/0x90 #<4>[ 55.388755] ? exc_invalid_op+0x14/0x70 [ 44.590590] ? exc_invalid_op+0x14/0x70 # [ 44.601395] ?<4>[ 55.399488] ? asm_exc_invalid_op+0x12/0x20 asm_exc_invalid_op+0x12/0x20 # [ 44.612573] ? refcount_warn<4>[ 55.410706] ? refcount_warn_saturate+0x51/0x110 _saturate+0x51/0x110 # [ 44.624243] ? refcount_warn_saturate<4>[ 55.422330] ? refcount_warn_saturate+0x51/0x110 +0x51/0x110 # [ 44.635902] lkdtm_REFCOUNT_INC_OVERFLOW+0x70/<4>[ 55.434023] lkdtm_REFCOUNT_ADD_SATURATED+0x3c/0x64 0x98 # [ 44.647785] direct_entry.cold+0x2c/0x38 # [ 44.65<4>[ 55.445952] direct_entry.cold+0x2c/0x38 8659] full_proxy_write+0x53/0x80 # [ 44.669461] vfs_write+0<4>[ 55.456844] full_proxy_write+0x53/0x80 xe7/0x3b0 # [ 44.679658] ksys_write+0x68/0xf0 # [ 44.6898<4>[ 55.467625] vfs_write+0xe7/0x3b0 89] do_syscall_64+0x30/0x40 # [ 44.700371] entry_SYSCALL_64<4>[ 55.477843] ksys_write+0x68/0xf0 _after_hwframe+0x61/0xc6 # [ 44.712530] RIP: 0033:0x7ff127d36<4>[ 55.488039] do_syscall_64+0x30/0x40 473 # [ 44.723018] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 <4>[ 55.498570] entry_SYSCALL_64_after_hwframe+0x61/0xc6 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 7<4>[ 55.510731] RIP: 0033:0x7f33be455473 5 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 <4>[ 55.521227] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 00 48 83 ec 28 48 89 54 24 18 # [ 44.750540] RSP: 002b:00007f<4>[ 55.548705] RSP: 002b:00007ffd5dfc70d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 feae42c538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 44<4>[ 55.563693] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f33be455473 .765495] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f<4>[ 55.578154] RDX: 0000000000000017 RSI: 00007f33be349000 RDI: 0000000000000001 f127d36473 # [ 44.779993] RDX: 0000000000000016 RSI: 00007ff1<4>[ 55.592645] RBP: 00007f33be349000 R08: 00007f33be348010 R09: 0000000000000000 27c2a000 RDI: 0000000000000001 # [ 44.794457] RBP: 00007ff127<4>[ 55.607110] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 c2a000 R08: 00007ff127c29010 R09: 0000000000000000 # [ 44.808<4>[ 55.621578] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 965] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000<4>[ 55.636094] irq event stamp: 0 000001 # [ 44.823428] R13: 0000000000000001 R14: 000000000002<4>[ 55.645996] hardirqs last enabled at (0): [<0000000000000000>] 0x0 0000 R15: 0000000000020000 # [ 44.837940] irq event stamp: 0 <4>[ 55.659527] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 44.847837] hardirqs last enabled at (0): [<0000000000000<4>[ 55.675153] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 000>] 0x0 # [ 44.861363] hardirqs last disabled at (0): [[ 55.690809] softirqs last disabled at (0): [<0000000000000000>] 0x0 fffff8f0fd844>] copy_process+0x664/0x1c60 # [ 44.876996] soft<4>[ 55.704283] ---[ end trace 19f7a216b67dc064 ]--- irqs last enabled at (0): [] copy_process+0x6<6>[ 55.715985] lkdtm: Saturation detected: still saturated 64/0x1c60 # [ 44.892653] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 44.906154] ---[ end trace 19f7a216b67dc058 ]--- # [ 44.917826] lkdtm: Overflow detected: saturated # REFCOUNT_INC_OVERFLOW: saw 'call trace:': ok ok 42 selftests: lkdtm: REFCOUNT_INC_OVERFLOW.sh # selftests: lkdtm: REFCOUNT_ADD_OVERFLOW.sh # [ 45.071674] lkdtm: Performing direct entry REFCOUNT_ADD_OVERFLOW # [ 45.079472] lkdtm: attempting good refcount_add() without overflow # [ 45.092893] lkdtm: attempting bad refcount_add() overflow # [ 45.105429] ------------[ cut here ]------------ # [ 45.117092] refcount_t: saturated; leaking memory. # [ 45.128981] WARNING: CPU: 1 PID: 1999 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 45.144885] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 45.203847] CPU: 1 PID: 1999 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 45.219004] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 45.2<6>[ 55.866597] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_SATURATED 32323] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 45.244<6>[ 55.879361] lkdtm: attempting bad refcount_inc_not_zero() from saturated 662] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2<4>[ 55.893359] ------------[ cut here ]------------ f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 <4>[ 55.905021] refcount_t: saturated; leaking memory. ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7<4>[ 55.916907] WARNING: CPU: 1 PID: 2401 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 c7 50 3f f5 # [ 45.272157] RSP: 0018:ffffb7dc827e7e48 EFLAGS<4>[ 55.932816] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight : 00010286 # [ 45.284496] RAX: 0000000000000000 RBX: 00000000<4>[ 55.991771] CPU: 1 PID: 2401 Comm: cat Tainted: G D W 5.10.182-cip35 #1 0000002c RCX: 0000000000000000 # [ 45.298977] RDX: ffff9e047a<4>[ 56.006930] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 cac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 45.313<4>[ 56.020245] RIP: 0010:refcount_warn_saturate+0x97/0x110 462] RBP: ffffffff90ff8fc3 R08: 0000000000000000 R09: 0000000000<4>[ 56.032583] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 000000 # [ 45.327937] R10: 00000000ffffe000 R11: 3fffffffffff<4>[ 56.060100] RSP: 0018:ffffb7dc82de7e38 EFLAGS: 00010282 ffff R12: 0000000000000016 # [ 45.342412] R13: ffffb7dc827e7f<4>[ 56.072422] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 10 R14: ffffb7dc827e7f10 R15: ffff9e04040af000 # [ 45.356889]<4>[ 56.086894] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 FS: 00007f9796522580(0000) GS:ffff9e047ac80000(0000) knlGS:000<4>[ 56.101372] RBP: ffffffff90ff8c80 R08: 0000000000000000 R09: 0000000000000000 0000000000000 # [ 45.372433] CS: 0010 DS: 0000 ES: 0000 CR0:<4>[ 56.115851] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 0000000080050033 # [ 45.385359] CR2: 00007f979632c000 CR3: 0<4>[ 56.130330] R13: ffffb7dc82de7f10 R14: ffffb7dc82de7f10 R15: ffff9e040400e000 00000010641a003 CR4: 00000000003706e0 # [ 45.399838] Call Tra<4>[ 56.144809] FS: 00007fae81542580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 ce: # [ 45.409078] ? __warn+0x80/0x110 # [ 45.419184] ? <4>[ 56.160356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 refcount_warn_saturate+0x51/0x110 # [ 45.430849] ? report_bu<4>[ 56.173281] CR2: 00007fae8134c000 CR3: 0000000106642006 CR4: 00000000003706e0 g+0x9e/0xc0 # [ 45.441254] ? handle_bug+0x41/0x90 # [ 45.<4>[ 56.187760] Call Trace: 451652] ? exc_invalid_op+0x14/0x70 # [ 45.462465] ? asm_exc<4>[ 56.197000] ? __warn+0x80/0x110 _invalid_op+0x12/0x20 # [ 45.473646] ? refcount_warn_saturat<4>[ 56.207107] ? refcount_warn_saturate+0x97/0x110 e+0x51/0x110 # [ 45.485304] ? refcount_warn_saturate+0x51/0x<4>[ 56.218771] ? report_bug+0x9e/0xc0 110 # [ 45.490753] lkdtm_REFCOUNT_ADD_OVERFLOW+0x7f/0xa7 # <4>[ 56.229174] ? handle_bug+0x41/0x90 [ 45.502604] direct_entry.cold+0x2c/0x38 # [ 45.507276] f<4>[ 56.239573] ? exc_invalid_op+0x14/0x70 ull_proxy_write+0x53/0x80 # [ 45.518060] vfs_write+0xe7/0x3b<4>[ 56.250365] ? asm_exc_invalid_op+0x12/0x20 0 # [ 45.528271] ksys_write+0x68/0xf0 # [ 45.538477] do_<4>[ 56.261544] ? refcount_warn_saturate+0x97/0x110 syscall_64+0x30/0x40 # [ 45.548974] entry_SYSCALL_64_after_h<4>[ 56.273204] ? refcount_warn_saturate+0x97/0x110 wframe+0x61/0xc6 # [ 45.561121] RIP: 0033:0x7f9796438473 # [<4>[ 56.284870] __refcount_add_not_zero.constprop.0+0x2a/0x35 45.571620] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff<4>[ 56.297506] lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED+0x3e/0x76 ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 <4>[ 56.310334] direct_entry.cold+0x2c/0x38 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83<4>[ 56.321223] full_proxy_write+0x53/0x80 ec 28 48 89 54 24 18 # [ 45.599110] RSP: 002b:00007ffccde0e6<4>[ 56.332014] vfs_write+0xe7/0x3b0 18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 45.614077]<4>[ 56.342221] ksys_write+0x68/0xf0 RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f97964384<4>[ 56.352430] do_syscall_64+0x30/0x40 73 # [ 45.628556] RDX: 0000000000000016 RSI: 00007f979632c000<4>[ 56.362925] entry_SYSCALL_64_after_hwframe+0x61/0xc6 RDI: 0000000000000001 # [ 45.643035] RBP: 00007f979632c000 R<4>[ 56.375075] RIP: 0033:0x7fae81458473 08: 00007f979632b010 R09: 0000000000000000 # [ 45.657514] R10<4>[ 56.385572] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 : fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 56.413065] RSP: 002b:00007ffdac838578 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 45.671995] R13: 0000000000000001 R14: 0000000000020000 R15<4>[ 56.428029] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fae81458473 : 0000000000020000 # [ 45.686481] irq event stamp: 0 # [ 4<4>[ 56.442508] RDX: 0000000000000020 RSI: 00007fae8134c000 RDI: 0000000000000001 5.696391] hardirqs last enabled at (0): [<0000000000000000>] 0x<4>[ 56.456988] RBP: 00007fae8134c000 R08: 00007fae8134b010 R09: 0000000000000000 0 # [ 45.709899] hardirqs last disabled at (0): [[ 56.471467] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 fd844>] copy_process+0x664/0x1c60 # [ 45.725544] softirqs las<4>[ 56.485947] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 t enabled at (0): [] copy_process+0x664/0x1c6<4>[ 56.500431] irq event stamp: 0 0 # [ 45.741190] softirqs last disabled at (0): [<00000000000<4>[ 56.510344] hardirqs last enabled at (0): [<0000000000000000>] 0x0 00000>] 0x0 # [ 45.754697] ---[ end trace 19f7a216b67dc059 ]-<4>[ 56.523853] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 -- # [ 45.766359] lkdtm: Overflow detected: saturated # REFC<4>[ 56.539496] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 OUNT_ADD_OVERFLOW: saw 'call trace:': ok ok 43 selftests: lkdtm<4>[ 56.555137] softirqs last disabled at (0): [<0000000000000000>] 0x0 : REFCOUNT_ADD_OVERFLOW.sh # selftests: lkdtm: REFCOUNT_INC_NOT<4>[ 56.568649] ---[ end trace 19f7a216b67dc065 ]--- _ZERO_OVERFLOW.sh # [ 46.407806] lkdtm: Performing direct ent<6>[ 56.580310] lkdtm: Saturation detected: still saturated ry REFCOUNT_INC_NOT_ZERO_OVERFLOW # [ 46.421266] lkdtm: attempting bad refcount_inc_not_zero() overflow # [ 46.434724] ------------[ cut here ]------------ # [ 46.446364] refcount_t: saturated; leaking memory. # [ 46.458251] WARNING: CPU: 1 PID: 2031 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 46.474161] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 46.533121] CPU: 1 PID: 2031 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 46.548276] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 46.561593] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 46.573938] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 # [ 46.601426] RSP: 0018:ffffb7dc8286f<6>[ 56.720881] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_SATURATED <6>[ 56.731161] lkdtm: attempting bad refcount_add_not_zero() from saturated <4>[ 56.738942] ------------[ cut here ]------------ <4>[ 56.744399] refcount_t: saturated; leaking memory. <4>[ 56.750069] WARNING: CPU: 3 PID: 2433 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 e38 EFLAGS: 00010282 # [ 46.613770] RAX: 0000000000000000 RBX<4>[ 56.759795] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 56.818743] CPU: 3 PID: 2433 Comm: cat Tainted: G D W 5.10.182-cip35 #1 : 000000007fffffff RCX: 0000000000000000 # [ 46.628249] RDX: <4>[ 56.827687] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # <4>[ 56.841007] RIP: 0010:refcount_warn_saturate+0x97/0x110 <4>[ 56.853347] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 <4>[ 56.874621] RSP: 0018:ffffb7dc82e5fe38 EFLAGS: 00010282 <4>[ 56.880747] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 <4>[ 56.889032] RDX: ffff9e047adac660 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 [ 46.642735] RBP: ffffffff90ff8c00 R08: 0000000000000000 R09: <4>[ 56.897308] RBP: ffffffff90ff8ca0 R08: 0000000000000000 R09: 0000000000000000 <4>[ 56.911776] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 56.920036] R13: ffffb7dc82e5ff10 R14: ffffb7dc82e5ff10 R15: ffff9e040667f000 <4>[ 56.928290] FS: 00007f8455cb1580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 56.937620] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 56.944328] CR2: 00007f8455abb000 CR3: 0000000101224006 CR4: 00000000003706e0 <4>[ 56.952582] Call Trace: 0000000000000000 # [ 46.657213] R10: 00000000ffffe000 R11: 3f<4>[ 56.955607] ? __warn+0x80/0x110 <4>[ 56.965707] ? refcount_warn_saturate+0x97/0x110 <4>[ 56.971152] ? report_bug+0x9e/0xc0 <4>[ 56.975339] ? handle_bug+0x41/0x90 <4>[ 56.979524] ? exc_invalid_op+0x14/0x70 <4>[ 56.984097] ? asm_exc_invalid_op+0x12/0x20 <4>[ 56.989062] ? refcount_warn_saturate+0x97/0x110 <4>[ 56.994534] ? refcount_warn_saturate+0x97/0x110 <4>[ 56.999983] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 57.006400] lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED+0x3e/0x76 <4>[ 57.013013] direct_entry.cold+0x2c/0x38 ffffffffffffff R12: 000000000000001f # [ 46.671692] R13: ffff<4>[ 57.017694] full_proxy_write+0x53/0x80 <4>[ 57.028482] vfs_write+0xe7/0x3b0 <4>[ 57.032473] ksys_write+0x68/0xf0 <4>[ 57.036464] do_syscall_64+0x30/0x40 <4>[ 57.040746] entry_SYSCALL_64_after_hwframe+0x61/0xc6 b7dc8286ff10 R14: ffffb7dc8286ff10 R15: ffff9e04040df000 # [ <4>[ 57.046688] RIP: 0033:0x7f8455bc7473 <4>[ 57.057183] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 57.078461] RSP: 002b:00007ffcba6f67a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 57.087211] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f8455bc7473 <4>[ 57.095473] RDX: 0000000000000020 RSI: 00007f8455abb000 RDI: 0000000000000001 46.686171] FS: 00007f78133e8580(0000) GS:ffff9e047ac80000(0000)<4>[ 57.103738] RBP: 00007f8455abb000 R08: 00007f8455aba010 R09: 0000000000000000 <4>[ 57.118217] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 knlGS:0000000000000000 # [ 46.701719] CS: 0010 DS: 0000 ES:<4>[ 57.126481] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 57.140959] irq event stamp: 0 <4>[ 57.144693] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 57.152018] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 57.161445] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 57.170872] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 57.178162] ---[ end trace 19f7a216b67dc066 ]--- <6>[ 57.183607] lkdtm: Saturation detected: still saturated 0000 CR0: 0000000080050033 # [ 46.714645] CR2: 00007f78131f2000 CR3: 00000001030ba004 CR4: 00000000003706e0 # [ 46.729119] Call Trace: # [ 46.732147] ? __warn+0x80/0x110 # [ 46.742248] ? refcount_warn_saturate+0x97/0x110 # [ 46.753938] ? report_bug+0x9e/0xc0 # [ 46.764319] ? handle_bug+0x41/0x90 # [ 46.774713] ? exc_invalid_op+0x14/0x70 # [ 46.785504] ? asm_exc_invalid_op+0x12/0x20 # [ 46.796683] ? refcount_warn_saturate+0x97/0x110 # [ 46.808343] ? refcount_warn_saturate+0x97/0x110 # [ 46.820006] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 46.832642] lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW+0x3e/0x76 # [ 46.845373] direct_entry.cold+0x2c/0x38 # [ 46.856263] full_proxy_write+0x53/0x80 # [ 46.867052] vfs_write+0xe7/0x3b0 # [ 46.877259] ksys_write+0x68/0xf0 # [ 46.887467] do_syscall_64+0x30/0x40 # [ 46.897961] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 46.910110] RIP: 0033:0x7f78132fe473 # [ 46.920607] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 46.948095] RSP: 002b:00007ffe109e0f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 46.963061] RAX: ffffffffffffffda RBX: 000000000000001f<6>[ 57.319006] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_SATURATED RCX: 00007f78132fe473 # [ 46.977543] RDX: 000000000000001f R<6>[ 57.328519] lkdtm: attempting bad refcount_dec_and_test() from saturated SI: 00007f78131f2000 RDI: 0000000000000001 # [ 46.992021] RBP<4>[ 57.342518] ------------[ cut here ]------------ : 00007f78131f2000 R08: 00007f78131f1010 R09: 0000000000000000 <4>[ 57.354176] refcount_t: underflow; use-after-free. # [ 47.006499] R10: fffffffffffffbc5 R11: 0000000000000246 R12<4>[ 57.366061] WARNING: CPU: 1 PID: 2468 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 : 0000000000000001 # [ 47.020979] R13: 0000000000000001 R14: <4>[ 57.381969] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight 0000000000020000 R15: 0000000000020000 # [ 47.035463] irq eve<4>[ 57.440921] CPU: 1 PID: 2468 Comm: cat Tainted: G D W 5.10.182-cip35 #1 nt stamp: 0 # [ 47.045373] hardirqs last enabled at (0): [<0<4>[ 57.456084] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 000000000000000>] 0x0 # [ 47.058882] hardirqs last disabled a<4>[ 57.469397] RIP: 0010:refcount_warn_saturate+0xba/0x110 t (0): [] copy_process+0x664/0x1c60 # [ 47.<4>[ 57.481741] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 074526] softirqs last enabled at (0): [] copy<4>[ 57.509231] RSP: 0018:ffffb7dc82ef7e40 EFLAGS: 00010286 _process+0x664/0x1c60 # [ 47.090171] softirqs last disabled a<4>[ 57.521576] RAX: 0000000000000000 RBX: 000000000000003a RCX: 0000000000000000 t (0): [<0000000000000000>] 0x0 # [ 47.103684] ---[ end trace<4>[ 57.536054] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 19f7a216b67dc05a ]--- # [ 47.115348] lkdtm: Overflow detecte<4>[ 57.550532] RBP: ffffffff90ff8cc0 R08: 0000000000000000 R09: 0000000000000000 d: saturated # REFCOUNT_INC_NOT_ZERO_OVERFLOW: saw 'call trace:<4>[ 57.565013] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 ': ok ok 44 selftests: lkdtm: REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh<4>[ 57.579492] R13: ffffb7dc82ef7f10 R14: ffffb7dc82ef7f10 R15: ffff9e0402ecf000 # selftests: lkdtm: REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh # [ 4<4>[ 57.593973] FS: 00007f3d8e8de580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 7.240557] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_O<4>[ 57.609517] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 VERFLOW # [ 47.253050] lkdtm: attempting bad refcount_add_not<4>[ 57.622443] CR2: 00007f3d8e6e8000 CR3: 00000001032d8004 CR4: 00000000003706e0 _zero() overflow # [ 47.260283] ------------[ cut here ]-----<4>[ 57.636923] Call Trace: ------- # [ 47.265761] refcount_t: saturated; leaking memory.<4>[ 57.646163] ? __warn+0x80/0x110 # [ 47.271415] WARNING: CPU: 3 PID: 2063 at lib/refcount.c:1<4>[ 57.656270] ? refcount_warn_saturate+0xba/0x110 9 refcount_warn_saturate+0x97/0x110 # [ 47.287340] Modules li<4>[ 57.667936] ? report_bug+0x9e/0xc0 nked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_e<4>[ 57.678339] ? handle_bug+0x41/0x90 c_sensors_core industrialio_triggered_buffer kfifo_buf industria<4>[ 57.688737] ? exc_invalid_op+0x14/0x70 lio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_<4>[ 57.699528] ? asm_exc_invalid_op+0x12/0x20 ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc s<4>[ 57.710709] ? refcount_warn_saturate+0xba/0x110 nd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logge<4>[ 57.722373] __refcount_sub_and_test.constprop.0+0x3c/0x50 r videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_<4>[ 57.735006] lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED+0x3e/0x76 dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_<4>[ 57.747832] direct_entry.cold+0x2c/0x38 i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backligh<4>[ 57.758719] full_proxy_write+0x53/0x80 t # [ 47.346354] CPU: 3 PID: 2063 Comm: cat Tainted: G D<4>[ 57.769508] vfs_write+0xe7/0x3b0 W 5.10.182-cip35 #1 # [ 47.355309] Hardware name: Go<4>[ 57.779714] ksys_write+0x68/0xf0 ogle Rammus/Rammus, BIOS 09/04/2020 # [ 47.368619] RIP: 0010<4>[ 57.789921] do_syscall_64+0x30/0x40 :refcount_warn_saturate+0x97/0x110 # [ 47.380962] Code: 01 01<4>[ 57.800420] entry_SYSCALL_64_after_hwframe+0x61/0xc6 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 <4>[ 57.812570] RIP: 0033:0x7f3d8e7f4473 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b<4>[ 57.823068] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 # <4>[ 57.850559] RSP: 002b:00007fffa60985f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.402239] RSP: 0018:ffffb7dc828dfe38 EFLAGS: 00010282 # [ <4>[ 57.865524] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f3d8e7f4473 47.408367] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 00<4>[ 57.880004] RDX: 0000000000000020 RSI: 00007f3d8e6e8000 RDI: 0000000000000001 00000000000000 # [ 47.416622] RDX: ffff9e047adac660 RSI: ffff<4>[ 57.894482] RBP: 00007f3d8e6e8000 R08: 00007f3d8e6e7010 R09: 0000000000000000 9e047ad9bf70 RDI: ffff9e047ad9bf70 # [ 47.424884] RBP: ffffff<4>[ 57.908963] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 ff90ff8c20 R08: 0000000000000000 R09: 0000000000000000 # [ 47<4>[ 57.923442] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 .433147] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000<4>[ 57.937927] irq event stamp: 0 000000001f # [ 47.441411] R13: ffffb7dc828dff10 R14: ffffb7dc<4>[ 57.947835] hardirqs last enabled at (0): [<0000000000000000>] 0x0 828dff10 R15: ffff9e040648e000 # [ 47.449683] FS: 00007f4112<4>[ 57.961343] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 a88580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 #<4>[ 57.976989] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 [ 47.465232] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003<4>[ 57.992632] softirqs last disabled at (0): [<0000000000000000>] 0x0 3 # [ 47.471940] CR2: 00007f4112892000 CR3: 0000000103376005 <4>[ 58.006143] ---[ end trace 19f7a216b67dc067 ]--- CR4: 00000000003706e0 # [ 47.480194] Call Trace: # [ 47.48<6>[ 58.017806] lkdtm: Saturation detected: still saturated 3215] ? __warn+0x80/0x110 # [ 47.487130] ? refcount_warn_saturate+0x97/0x110 # [ 47.492579] ? report_bug+0x9e/0xc0 # [ 47.496764] ? handle_bug+0x41/0x90 # [ 47.500947] ? exc_invalid_op+0x14/0x70 # [ 47.505513] ? asm_exc_invalid_op+0x12/0x20 # [ 47.510479] ? refcount_warn_saturate+0x97/0x110 # [ 47.515949] ? refcount_warn_saturate+0x97/0x110 # [ 47.521396] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 47.527816] lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW+0x3e/0x76 # [ 47.534332] direct_entry.cold+0x2c/0x38 # [ 47.539007] full_proxy_write+0x53/0x80 # [ 47.549797] vfs_write+0xe7/0x3b0 # [ 47.553791] ksys_write+0x68/0xf0 # [ 47.564000] do_syscall_64+0x30/0x40 # [ 47.568305] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 47.574237] RIP: 0033:0x7f411299e473 # [ 47.578520] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 47.599798] RSP: 002b:00007fff8f1e0578 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 47.608549] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f411299e473 # [ 47.616812] RDX: 000000000000001f RSI: 00007f4112892000 RDI: 0000000000000001 # [ 47.625075] RBP: 00007f4112892000 R08: 00007f4112891010 R09: 0000000000000000 # [ 47.633338] R10: ffff<6>[ 58.161790] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_SATURATED <6>[ 58.174919] lkdtm: attempting bad refcount_sub_and_test() from saturated <4>[ 58.182706] ------------[ cut here ]------------ <4>[ 58.188165] refcount_t: underflow; use-after-free. <4>[ 58.193828] WARNING: CPU: 3 PID: 2503 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 <4>[ 58.203560] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight fffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ <4>[ 58.256341] CPU: 3 PID: 2503 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 58.271494] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 58.278594] RIP: 0010:refcount_warn_saturate+0xba/0x110 <4>[ 58.284723] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 <4>[ 58.306001] RSP: 0018:ffffb7dc82f6fe40 EFLAGS: 00010286 <4>[ 58.312152] RAX: 0000000000000000 RBX: 000000000000003b RCX: 0000000000000000 <4>[ 58.320413] RDX: ffff9e047adac660 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 <4>[ 58.328682] RBP: ffffffff90ff8ce0 R08: 0000000000000000 R09: 0000000000000000 47.641601] R13: 0000000000000001 R14: 0000000000020000 R15: 0000<4>[ 58.336948] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 58.351422] R13: ffffb7dc82f6ff10 R14: ffffb7dc82f6ff10 R15: ffff9e0405af2000 000000020000 # [ 47.649859] irq event stamp: 0 # [ 47.6535<4>[ 58.359686] FS: 00007f650c60a580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 <4>[ 58.375232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 58.381940] CR2: 00007f650c414000 CR3: 0000000105dc2004 CR4: 00000000003706e0 <4>[ 58.390201] Call Trace: <4>[ 58.393224] ? __warn+0x80/0x110 80] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [<4>[ 58.397144] ? refcount_warn_saturate+0xba/0x110 <4>[ 58.408803] ? report_bug+0x9e/0xc0 <4>[ 58.412989] ? handle_bug+0x41/0x90 <4>[ 58.417174] ? exc_invalid_op+0x14/0x70 <4>[ 58.421747] ? asm_exc_invalid_op+0x12/0x20 <4>[ 58.426725] ? refcount_warn_saturate+0xba/0x110 <4>[ 58.432205] __refcount_sub_and_test.constprop.0+0x3c/0x50 <4>[ 58.438622] lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED+0x3e/0x76 <4>[ 58.445234] direct_entry.cold+0x2c/0x38 <4>[ 58.449907] full_proxy_write+0x53/0x80 <4>[ 58.454480] vfs_write+0xe7/0x3b0 <4>[ 58.458469] ksys_write+0x68/0xf0 <4>[ 58.462460] do_syscall_64+0x30/0x40 <4>[ 58.466742] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 58.472676] RIP: 0033:0x7f650c520473 <4>[ 58.476976] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 58.498249] RSP: 002b:00007ffceb926838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 58.506997] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f650c520473 <4>[ 58.515260] RDX: 0000000000000020 RSI: 00007f650c414000 RDI: 0000000000000001 <4>[ 58.523522] RBP: 00007f650c414000 R08: 00007f650c413010 R09: 0000000000000000 <4>[ 58.531783] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 58.540046] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 58.548311] irq event stamp: 0 47.660873] hardirqs last disabled at (0): [<4>[ 58.552035] hardirqs last enabled at (0): [<0000000000000000>] 0x0 ] copy_process+0x664/0x1c60 # [ 47.670301] softirqs last ena<4>[ 58.565548] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 bled at (0): [] copy_process+0x664/0x1c60 # [<4>[ 58.581195] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 58.596837] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 58.604130] ---[ end trace 19f7a216b67dc068 ]--- <6>[ 58.609577] lkdtm: Saturation detected: still saturated 47.679735] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 47.687017] ---[ end trace 19f7a216b67dc05b ]--- # [ 47.692463] lkdtm: Overflow detected: saturated # REFCOUNT_ADD_NOT_ZERO_OVERFLOW: saw 'call trace:': ok ok 45 selftests: lkdtm: REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh # selftests: lkdtm: REFCOUNT_DEC_ZERO.sh # [ 47.808500] lkdtm: Performing direct entry REFCOUNT_DEC_ZERO # [ 47.816333] lkdtm: attempting good refcount_dec() # [ 47.821890] lkdtm: attempting bad refcount_dec() to zero # [ 47.828123] ------------[ cut here ]------------ # [ 47.839788] refcount_t: decrement hit 0; leaking memory. # [ 47.846025] WARNING: CPU: 3 PID: 2095 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 47.861953] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 47.920909] CPU: 3 PID: 2095 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 47.936063] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 47.949379] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 47.961720] Code: d8 3f f5 90 c6 05 7d f1 f6 01 01 e8 96 ed c0 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 3f f5 90 c6 05 64 f1 f6 01 01 e8 7c ed c0 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 47.989212] RSP: 0018:ffffb7dc8293fe48 EFLAGS: 00010286 # [ 48.001554] RAX: 0000000000000000 RBX: 000000000000002f RCX: 0000000000000000 # [ 48.009819] RDX: ffff9e047adac660 RSI: ffff<6>[ 58.799392] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_TO <6>[ 58.809242] lkdtm: attempting good copy_to_user of correct size <6>[ 58.816166] lkdtm: attempting bad copy_to_user of too large size 9e047ad9bf70 RDI: ffff9e047ad9bf70 # [ 48.024293] RBP: ffffffff90ff8fd9 R08: 0000000000000000 R09: 0000000000000000 # [ 48.032557] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 48.047031] R13: ffffb7dc8293ff10 R14: ffffb7dc8293ff10 R15: ffff9e0402ab6000 # [ 48.055295] FS: 00007f8f5c18e580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 48.070837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 48.077546] CR2: 00007f8f5bf98000 CR3: 0000000102e0e003 CR4: 00000000003706e0 # [ 48.092021] Call Trace: # [ 48.095046] ? __warn+0x80/0x110 # [ 48.105146] ? refcount_warn_saturate+0xfb/0x110 # [ 48.116811] ? report_bug+0x9e/0xc0 # [ 48.127211] ? handle_bug+0x41/0x90 # [ 48.137609] ? exc_invalid_op+0x14/0x70 # [ 48.148400] ? asm_exc_invalid_op+0x12/0x20 # [ 48.159579] ? refcount_warn_saturate+0xfb/0x110 # [ 48.171241] ? refcount_warn_saturate+0xfb/0x110 # [ 48.182903] lkdtm_REFCOUNT_DEC_ZERO+0x4d/0xbd # [ 48.194374] direct_entry.cold+0x2c/0x38 # [ 48.205259] full_proxy_write+0x53/0x80 # [ 48.216049] vfs_write+0xe7/0x3b0 # [ 48.226254] ksys_write+0x68/0xf0 # [ 48.236464] do_syscall_64+0x30/0x40 # [ 48.246960] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 48.259108] RIP: 0033:0x7f8f5c0a4473 # [ 48.269605] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <4<6>[ 58.961740] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_FROM <6>[ 58.973425] lkdtm: attempting good copy_from_user of correct size 8> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 1<6>[ 58.980584] lkdtm: attempting bad copy_from_user of too large size 8 # [ 48.297094] RSP: 002b:00007ffc3681b838 EFLAGS: 00000246 <1>[ 58.993976] BUG: unable to handle page fault for address: ffff9e0405e40000 <1>[ 59.008138] #PF: supervisor write access in kernel mode <1>[ 59.014265] #PF: error_code(0x0003) - permissions violation <6>[ 59.020776] PGD 123001067 P4D 123001067 PUD 100236063 PMD 105e09063 PTE 8000000105e40061 <4>[ 59.030108] Oops: 0003 [#17] SMP PTI <4>[ 59.034385] CPU: 2 PID: 2627 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 59.043325] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 59.050423] RIP: 0010:memset_erms+0x9/0x20 <4>[ 59.055285] Code: 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 <4>[ 59.076548] RSP: 0018:ffffb7dc83157df8 EFLAGS: 00010246 <4>[ 59.082681] RAX: 0000000000000000 RBX: 00007fed39acd010 RCX: 0000000000000010 <4>[ 59.090940] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff9e0405e40000 <4>[ 59.099198] RBP: 00000000000003f0 R08: 0000000000000001 R09: ffff9e0405e40000 <4>[ 59.107458] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: ffff9e0405e3fc10 <4>[ 59.115732] R13: 0000000000000010 R14: 00007fed39acd000 R15: 00007fed39acd010 <4>[ 59.123992] FS: 00007fed39a9e580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 59.133321] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 59.140026] CR2: ffff9e0405e40000 CR3: 0000000101224006 CR4: 00000000003706e0 <4>[ 59.148285] Call Trace: <4>[ 59.151304] ? __die_body.cold+0x1a/0x1f <4>[ 59.155974] ? no_context+0x177/0x380 <4>[ 59.160354] ? exc_page_fault+0xd7/0x170 <4>[ 59.165022] ? asm_exc_page_fault+0x1e/0x30 <4>[ 59.169975] ? memset_erms+0x9/0x20 <4>[ 59.174157] _copy_from_user+0xae/0xd0 <4>[ 59.178631] do_usercopy_heap_size.cold+0x17b/0x1e8 <4>[ 59.184369] direct_entry.cold+0x2c/0x38 <4>[ 59.189038] full_proxy_write+0x53/0x80 <4>[ 59.193609] vfs_write+0xe7/0x3b0 <4>[ 59.197598] ksys_write+0x68/0xf0 <4>[ 59.201580] do_syscall_64+0x30/0x40 <4>[ 59.205860] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 59.211789] RIP: 0033:0x7fed399b4473 <4>[ 59.216067] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 59.237338] RSP: 002b:00007fffd76b2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 59.246084] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007fed399b4473 <4>[ 59.254344] RDX: 0000000000000018 RSI: 00007fed398a8000 RDI: 0000000000000001 <4>[ 59.262604] RBP: 00007fed398a8000 R08: 00007fed398a7010 R09: 0000000000000000 <4>[ 59.270861] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 59.279121] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ORIG_RAX: 0000000000000001 # [ 48.312058] RAX: ffffffffffffff<4>[ 59.287385] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight <4>[ 59.346372] CR2: ffff9e0405e40000 <4>[ 59.350360] ---[ end trace 19f7a216b67dc069 ]--- <4>[ 59.355806] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 59.360473] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 <4>[ 59.381743] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 <4>[ 59.387867] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 59.396127] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 <4>[ 59.404387] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 <4>[ 59.412646] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 59.420907] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 <4>[ 59.429165] FS: 00007fed39a9e580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 <4>[ 59.438491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 59.445197] CR2: ffff9e0405e40000 CR3: 0000000101224006 CR4: 00000000003706e0 <3>[ 59.453459] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 59.463652] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 2627, name: cat <4>[ 59.472397] INFO: lockdep is turned off. <4>[ 59.477064] irq event stamp: 0 <4>[ 59.480758] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 59.488047] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 <4>[ 59.497471] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 <4>[ 59.506896] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 59.514176] CPU: 2 PID: 2627 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 59.523115] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 59.530209] Call Trace: <4>[ 59.533228] dump_stack+0x77/0x9b <4>[ 59.537217] ___might_sleep.cold+0xa6/0xb6 <4>[ 59.542080] exit_signals+0x1c/0x300 <4>[ 59.546351] do_exit+0xc2/0xab0 <4>[ 59.550136] ? ksys_write+0x68/0xf0 <4>[ 59.554319] make_task_dead+0x2f/0x30 <4>[ 59.558695] rewind_stack_and_make_dead+0x17/0x20 <4>[ 59.564229] RIP: 0033:0x7fed399b4473 <4>[ 59.568498] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 59.589771] RSP: 002b:00007fffd76b2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 59.598516] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007fed399b4473 <4>[ 59.606776] RDX: 0000000000000018 RSI: 00007fed398a8000 RDI: 0000000000000001 <4>[ 59.615035] RBP: 00007fed398a8000 R08: 00007fed398a7010 R09: 0000000000000000 <4>[ 59.623294] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 59.631555] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 da RBX: 0000000000000012 RCX: 00007f8f5c0a4473 # [ 48.320322] RDX: 0000000000000012 RSI: 00007f8f5bf98000 RDI: 0000000000000001 # [ 48.334797] RBP: 00007f8f5bf98000 R08: 00007f8f5bf97010 R09: 0000000000000000 # [ 48.343060] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 48.357535] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 48.365803] irq event stamp: 0 # [ 48.375709] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 48.389218] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 48.404862] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 48.420505] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 48.427797] ---[ end trace 19f7a216b67dc05c ]--- # [ 48.439457] lkdtm: Zero detected: saturated # REFCOUNT_DEC_ZERO: saw 'call trace:': ok ok 46 selftests: lkdtm: REFCOUNT_DEC_ZERO.sh # selftests: lkdtm: REFCOUNT_DEC_NEGATIVE.sh # [ 48.574760] lkdtm: Performing direct entry REFCOUNT_DEC_NEGATIVE # [ 48.581935] lkdtm: attempting bad refcount_dec() below zero # [ 48.588473] ------------[ cut here ]------------ # [ 48.593945] refcount_t: decrement hit 0; leaking memory. # [ 48.600213] WARNING: CPU: 2 PID: 2130 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 48.609955] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine vid<6>[ 59.807733] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_TO <6>[ 59.821396] lkdtm: attempting good copy_to_user inside whitelist eobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_tabl<6>[ 59.828423] lkdtm: attempting bad copy_to_user outside whitelist e chromeos_pstore cros_kbd_led_backlight # [ 48.668965] CPU: 2 PID: 2130 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 48.677933] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 48.685031] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 48.691160] Code: d8 3f f5 90 c6 05 7d f1 f6 01 01 e8 96 ed c0 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 3f f5 90 c6 05 64 f1 f6 01 01 e8 7c ed c0 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 48.712457] RSP: 0018:ffffb7dc829afe48 EFLAGS: 00010286 # [ 48.724800] RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000 # [ 48.733065] RDX: ffff9e047ad2c660 RSI: ffff9e047ad1bf70 RDI: ffff9e047ad1bf70 # [ 48.741326] RBP: ffffffff90ff8feb R08: 0000000000000000 R09: 0000000000000000 # [ 48.749579] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 # [ 48.757844] R13: ffffb7dc829aff10 R14: ffffb7dc829aff10 R15: ffff9e0405a42000 # [ 48.766109] FS: 00007f9bee3a3580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 48.775441] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 48.782151] CR2: 00007f9bee1ad000 CR3: 0000000102d00002 CR4: 00000000003706e0 # [ 48.790413] Call Trace: # [ 48.793437] ? __warn+0x80/0x110 # [ 48.797359] ? refcount_warn_saturate+0xfb/0x110 # [ 48.809017] ? report_bug+0x9e/0xc0 # [ 48.813203] ? handle_bug+0x41/0x90 # [ 48.817388] ? exc_invalid_op+0x14/0x70 # [ <6>[ 59.980848] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_FROM 48.821964] ? asm_exc_invalid_op+0x12/0x20 # [ 48.826928] <6>[ 59.992440] lkdtm: attempting good copy_from_user inside whitelist ? refcount_warn_saturate+0xfb/0x110 # [ 48.832401] ? refcoun<6>[ 60.005856] lkdtm: attempting bad copy_from_user outside whitelist t_warn_saturate+0xfb/0x110 # [ 48.837850] lkdtm_REFCOUNT_DEC_NEGATIVE+0x37/0x61 # [ 48.843495] direct_entry.cold+0x2c/0x38 # [ 48.848195] full_proxy_write+0x53/0x80 # [ 48.858985] vfs_write+0xe7/0x3b0 # [ 48.869193] ksys_write+0x68/0xf0 # [ 48.879399] do_syscall_64+0x30/0x40 # [ 48.883728] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 48.889684] RIP: 0033:0x7f9bee2b9473 # [ 48.900174] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 48.921478] RSP: 002b:00007ffd9f9fea38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 48.930247] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f9bee2b9473 # [ 48.944713] RDX: 0000000000000016 RSI: 00007f9bee1ad000 RDI: 0000000000000001 # [ 48.952979] RBP: 00007f9bee1ad000 R08: 00007f9bee1ac010 R09: 0000000000000000 # [ 48.961243] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 48.969509] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 48.977779] irq event stamp: 0 # [ 48.981510] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 48.988803] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 48.998234] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 49.007685] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 49.014979] ---[ end trace 19f7a216b67dc05d ]--- # [ 49.020426] lkdtm: Negative detected: saturated # REFCOUNT_DEC_NEGATIVE: saw 'Negative detected: saturated': ok ok 47 selftests: lkdtm: REFCOUNT_DEC_NEGATIVE.<6>[ 60.183435] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_TO sh # selftests: lkdtm: REFCOUNT_DEC_AND_TEST_NEGATIVE.sh # [ <6>[ 60.194394] lkdtm: good_stack: ffffb7dc832dfe20-ffffb7dc832dfe40 49.140464] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST<6>[ 60.207637] lkdtm: bad_stack : ffffb7dc832dfda8-ffffb7dc832dfdc8 _NEGATIVE # [ 49.151777] lkdtm: attempting bad refcount_dec_a<6>[ 60.220861] lkdtm: attempting good copy_to_user of local stack nd_test() below zero # [ 49.165403] ------------[ cut here ]-<6>[ 60.233851] lkdtm: attempting bad copy_to_user of distant stack ----------- # [ 49.177048] refcount_t: underflow; use-after-free. # [ 49.188937] WARNING: CPU: 1 PID: 2165 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 49.204840] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 49.263816] CPU: 1 PID: 2165 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 49.278953] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 49.292266] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 49.298395] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 # [ 49.325882] RSP: 0018:ffffb7dc82a67e40 EFLAGS: 00010286 # [ 49.332013] RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000000000 # [ 49.346487] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 49.354749] RBP: ffffffff90ff8c40 R08: 0000000000000000 R09: 0000000000000000 # [ 49.363013] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00<6>[ 60.391531] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_FROM <6>[ 60.403548] lkdtm: good_stack: ffffb7dc8337fe20-ffffb7dc8337fe40 0000000000001f # [ 49.371276] R13: ffffb7dc82a67f10 R14: ffff<6>[ 60.410562] lkdtm: bad_stack : ffffb7dc8337fda8-ffffb7dc8337fdc8 b7dc82a67f10 R15: ffff9e0403483000 # [ 49.379540] FS: 00007e<6>[ 60.423780] lkdtm: attempting good copy_from_user of local stack <6>[ 60.436992] lkdtm: attempting bad copy_from_user of distant stack fc5065f580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 49.395080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 49.401793] CR2: 00007efc50469000 CR3: 0000000102be6004 CR4: 00000000003706e0 # [ 49.416266] Call Trace: # [ 49.419289] ? __warn+0x80/0x110 # [ 49.429421] ? refcount_warn_saturate+0xba/0x110 # [ 49.434871] ? report_bug+0x9e/0xc0 # [ 49.445268] ? handle_bug+0x41/0x90 # [ 49.455668] ? exc_invalid_op+0x14/0x70 # [ 49.466462] ? asm_exc_invalid_op+0x12/0x20 # [ 49.477643] ? refcount_warn_saturate+0xba/0x110 # [ 49.489305] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 49.501939] lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE+0x3e/0x78 # [ 49.514670] direct_entry.cold+0x2c/0x38 # [ 49.525559] full_proxy_write+0x53/0x80 # [ 49.536349] vfs_write+0xe7/0x3b0 # [ 49.546556] ksys_write+0x68/0xf0 # [ 49.556764] do_syscall_64+0x30/0x40 # [ 49.567263] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 49.579413] RIP: 0033:0x7efc50575473 # [ 49.589913] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 49.617406] RSP: 002b:00007ff<6>[ 60.563403] lkdtm: Performing direct entry USERCOPY_STACK_BEYOND def6b1458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 49.<6>[ 60.575429] lkdtm: good_stack: ffffb7dc83407e20-ffffb7dc83407e40 632370] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007ef<6>[ 60.588668] lkdtm: bad_stack : ffffb7dc83407ff8-ffffb7dc83408018 c50575473 # [ 49.640635] RDX: 000000000000001f RSI: 00007efc5<6>[ 60.601897] lkdtm: attempting good copy_to_user of local stack 0469000 RDI: 0000000000000001 # [ 49.655110] RBP: 00007efc504<6>[ 60.614908] lkdtm: attempting bad copy_to_user of distant stack 69000 R08: 00007efc50468010 R09: 0000000000000000 # [ 49.6633<4>[ 60.628044] lkdtm: copy_to_user failed, but lacked Oops 76] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 49.677849] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 49.686120] irq event stamp: 0 # [ 49.696025] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 49.709535] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 49.725180] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 49.734609] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 49.748113] ---[ end trace 19f7a216b67dc05e ]--- # [ 49.759775] lkdtm: Negative detected: saturated # REFCOUNT_DEC_AND_TEST_NEGATIVE: saw 'Negative detected: saturated': ok ok 48 selftests: lkdtm: REFCOUNT_DEC_AND_TEST_NEGATIVE.sh # selftests: lkdtm: REFCOUNT_SUB_AND_TEST_NEGATIVE.sh # [ 49.890077] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_NEGATIVE # [ 49.903530] lkdtm: attempting bad refcount_sub_and_test() below zero # [ 49.917136] ------------[ cut here ]------------ # [ 49.928795] refcount_t: underflow; use-after-free. # [ 49.940668] WARNING: CPU: 1 PID: 2200 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 49.956591] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar<6>[ 60.773259] lkdtm: Performing direct entry USERCOPY_KERNEL cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vma<6>[ 60.783553] lkdtm: attempting good copy_to_user from kernel rodata: ffffffff90b7ecf0 lloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd<6>[ 60.798735] lkdtm: attempting bad copy_to_user from kernel text: ffffffff8f2e1300 _logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cr<3>[ 60.813575] lkdtm: FAIL: survived bad copy_to_user() os_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 50.015551] CPU: 1 PID: 2200 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 50.030729] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 50.044047] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 50.056388] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 # [ 50.083902] RSP: 0018:ffffb7dc82ac7e40 EFLAGS: 00010286 # [ 50.096227] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 0000000000000000 # [ 50.110704] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 50.125184] RBP: ffffffff90ff8c60 R08: 0000000000000000 R09: 0000000000000000 # [ 50.139688] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 50.154167] R13: ffffb7dc82ac7f10 R14: ffffb7dc82ac7f10 R15: ffff9e0402afa000 # [ 50.168648] FS: 00007f6244847580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 50.184193] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 50.190905] CR2: 00007f6244651000 CR3: 00000001032d8002 CR4: 00000000003706e0 # [ 50.205377] Call Trace: # [ 50.214619] ? __warn+0x80/0x110 # [ 50.224741] ? refcount_w<6>[ 60.959383] lkdtm: Performing direct entry STACKLEAK_ERASING arn_saturate+0xba/0x110 # [ 50.236403] ? report_bug+0x9e/0xc<6>[ 60.968990] lkdtm: checking unused part of the thread stack (15928 bytes)... 0 # [ 50.246805] ? handle_bug+0x41/0x90 # [ 50.257204] ?<3>[ 60.983392] lkdtm: FAIL: the erased part is not found (checked 15928 bytes) exc_invalid_op+0x14/0x70 # [ 50.267995] ? asm_exc_invalid_o<3>[ 60.997672] lkdtm: FAIL: the thread stack is NOT properly erased p+0x12/0x20 # [ 50.279173] ? refcount_warn_saturate+0xba/0x1<4>[ 61.010899] CPU: 0 PID: 2869 Comm: cat Tainted: G D W 5.10.182-cip35 #1 <4>[ 61.026033] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 61.033126] Call Trace: <4>[ 61.036147] dump_stack+0x77/0x9b <4>[ 61.040132] lkdtm_STACKLEAK_ERASING+0x116/0x144 <4>[ 61.045568] direct_entry.cold+0x2c/0x38 <4>[ 61.050238] full_proxy_write+0x53/0x80 <4>[ 61.054816] vfs_write+0xe7/0x3b0 <4>[ 61.058805] ksys_write+0x68/0xf0 <4>[ 61.062785] do_syscall_64+0x30/0x40 <4>[ 61.067069] entry_SYSCALL_64_after_hwframe+0x61/0xc6 <4>[ 61.072999] RIP: 0033:0x7ff250153473 <4>[ 61.077279] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 61.098550] RSP: 002b:00007ffda51f1508 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 61.107286] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007ff250153473 <4>[ 61.115545] RDX: 0000000000000012 RSI: 00007ff250047000 RDI: 0000000000000001 <4>[ 61.123805] RBP: 00007ff250047000 R08: 00007ff250046010 R09: 0000000000000000 <4>[ 61.132065] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 61.140324] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 10 # [ 50.290833] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 50.303473] lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE+0x3e/0x7b # [ 50.316202] direct_entry.cold+0x2c/0x38 # [ 50.327088] full_proxy_write+0x53/0x80 # [ 50.337877] vfs_write+0xe7/0x3b0 # [ 50.348083] ksys_write+0x68/0xf0 # [ 50.358292] do_syscall_64+0x30/0x40 # [ 50.368789] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 50.374738] RIP: 0033:0x7f624475d473 # [ 50.385229] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 50.406506] RSP: 002b:00007ffe53218b18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 50.421464] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f624475d473 # [ 50.429731] RDX: 000000000000001f RSI: 00007f6244651000 RDI: 0000000000000001 # [ 50.444203] RBP: 00007f6244651000 R08: 00007f6244650010 R09: 0000000000000000 # [ 50.452466] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 50.466944] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 50.481427] irq event stamp: 0 # [ 50.491339] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 50.498634] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 50.514270] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 50.523702] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 50.537200] ---[ end trace 19f7a216b67dc05f ]--- # [ 50.542649] lkdtm: Negative detected: saturated # REFCOUNT_SUB_AND_TEST_NEGATIVE: saw 'Negative detected: saturated': ok ok 49 selftests: lkdtm: REFCOUNT_SUB_AND_TEST_NEGATIVE.sh # selftests: lkdtm: REFCOUNT_INC_ZERO.sh # [ 50.66251<6>[ 61.323710] lkdtm: Performing direct entry CFI_FORWARD_PROTO <6>[ 61.335476] lkdtm: Calling matched prototype ... 9] lkdtm: Performing direct entry REFCOUNT_INC_ZERO # [ 50.67<6>[ 61.340942] lkdtm: Calling mismatched prototype ... <6>[ 61.352894] lkdtm: Fail: survived mismatched prototype function call! 2749] lkdtm: attempting safe refcount_inc_not_zero() from zero # [ 50.686359] lkdtm: Good: zero detected # [ 50.697049] lkdtm: Correctly stayed at zero # [ 50.708228] lkdtm: attempting bad refcount_inc() from zero # [ 50.720864] ------------[ cut here ]------------ # [ 50.732527] refcount_t: addition on 0; use-after-free. # [ 50.738587] WARNING: CPU: 1 PID: 2232 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 # [ 50.754511] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 50.813466] CPU: 1 PID: 2232 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 50.828602] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 50.835706] RIP: 0010:refcount_warn_saturate+0x74/0x110 # [ 50.848038] Code: 01 01 e8 26 ee c0 00 0f 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 90 c6 05 ed f1 f6 01 01 e8 03 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 # [ 50.869316] RSP: 0018:ffffb7dc82a4fe48 EFLAGS: 00010286 # [ 50.881653] RAX: 0000000000000000 RBX: 0000000000000033 RCX: 0000000000000000 # [ 50.889941] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 50.904413] RBP: ffffffff90ff9001 R08: 0000000000000000 R09: 0000000000000000 # [ 50.912685] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 50.927159] R13: ffffb7dc82a4ff10 R14: ffffb7dc82a4ff10 R15: ffff9e0403e67000 # [ 50.935425] FS: 00007f4fdee91580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 50.950966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 50.957678] CR2: 00007f4fdec9b000 CR3: 0000000105b68005 CR4: 00000000003706e0 # [ 50.972160] Call Trace: # [ 50.981404] ? __warn+0x80/0x110 # [ 50.991509] ? refcount_warn_saturate+0x74/0x110 # [ 51.003172] ? report_bug+0x9e/0xc0 # [ 51.007358] ? handle_bug+0x41/0x90 # [ 51.017752] ? exc_invalid_op+0x14/0x70 # [ 51.022328] ? asm_exc_invalid_op+0x12/0x20 # [ 51.033504] ? refcount_warn_saturate+0x74/0x110 # [ 51.045165] ? refcount_warn_saturate+0x74/0x110 # [ 51.050617] lkdtm_REFCOUNT_INC_ZERO+0x99/0xc1 # [ 51.062078] direct_entry.cold+0x2c/0x38 # [ 51.066752] full_proxy_write+0x53/0x80 # [ 51.077537] vfs_write+0xe7/0x3b0 # [ 51.087748] ksys_write+0x68/0xf0 # [ 51.091746] do_syscall_64+0x30/0x40 # [ 51.102239] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 51.114388] RIP: 0033:0x7f4fdeda7473 # [ 51.118686] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 51.146170] RSP: 002b:00007fff9e8c1278 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 51.154920] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f4fdeda7473 # [ 51.169392] RDX: 0000000000000012 RSI: 00007f4fdec9b000 RDI: 0000000000000001 # [ 51.177658] RBP: 00007f4fdec9b000 R08: 00007f4fdec9a010 R09: 0000000000000000 # [ 51.192133] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 51.200400] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 51.214877] irq event stamp: 0 # [ 51.224790] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 51.232086] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 51.247727] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 51.263371] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 51.276878] ---[ end trace 19f7a216b67dc060 ]--- # [ 51.282327] lkdtm: Zero detected: saturated # REFCOUNT_INC_ZERO: saw 'call trace:': ok ok 50 selftests: lkdtm: REFCOUNT_INC_ZERO.sh # selftests: lkdtm: REFCOUNT_ADD_ZERO.sh # [ 51.412295] lkdtm: Performing direct entry REFCOUNT_ADD_ZERO # [ 51.424548] lkdtm: attempting safe refcount_add_not_zero() from zero # [ 51.438182] lkdtm: Good: zero detected # [ 51.448865] lkdtm: Correctly stayed at zero # [ 51.460006] lkdtm: attempting bad refcount_add() from zero # [ 51.472639] ------------[ cut here ]------------ # [ 51.478095] refcount_t: addition on 0; use-after-free. # [ 51.490387] WARNING: CPU: 0 PID: 2264 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 # [ 51.506307] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 51.565268] CPU: 0 PID: 2264 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 51.580468] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 51.593747] RIP: 0010:refcount_warn_saturate+0x74/0x110 # [ 51.606128] Code: 01 01 e8 26 ee c0 00 0f 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 90 c6 05 ed f1 f6 01 01 e8 03 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 # [ 51.633599] RSP: 0018:ffffb7dc82b87e48 EFLAGS: 00010286 # [ 51.645966] RAX: 0000000000000000 RBX: 0000000000000034 RCX: 0000000000000000 # [ 51.660417] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 # [ 51.674908] RBP: ffffffff90ff9013 R08: 0000000000000000 R09: 0000000000000000 # [ 51.689389] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 51.703878] R13: ffffb7dc82b87f10 R14: ffffb7dc82b87f10 R15: ffff9e0405ff2000 # [ 51.718348] FS: 00007faaa2ca0580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 51.733903] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 51.746824] CR2: 00007faaa2aaa000 CR3: 0000000102958006 CR4: 00000000003706f0 # [ 51.761312] Call Trace: # [ 51.770549] ? __warn+0x80/0x110 # [ 51.780666] ? refcount_warn_saturate+0x74/0x110 # [ 51.792325] ? report_bug+0x9e/0xc0 # [ 51.802741] ? handle_bug+0x41/0x90 # [ 51.813134] ? exc_invalid_op+0x14/0x70 # [ 51.823940] ? asm_exc_invalid_op+0x12/0x20 # [ 51.835119] ? refcount_warn_saturate+0x74/0x110 # [ 51.846810] ? refcount_warn_saturate+0x74/0x110 # [ 51.858457] lkdtm_REFCOUNT_ADD_ZERO+0x99/0xc1 # [ 51.869937] direct_entry.cold+0x2c/0x38 # [ 51.880821] full_proxy_write+0x53/0x80 # [ 51.891621] vfs_write+0xe7/0x3b0 # [ 51.901823] ksys_write+0x68/0xf0 # [ 51.912047] do_syscall_64+0x30/0x40 # [ 51.922537] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 51.934697] RIP: 0033:0x7faaa2bb6473 # [ 51.945193] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 51.972713] RSP: 002b:00007fff682a1578 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 51.987671] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007faaa2bb6473 # [ 52.002169] RDX: 0000000000000012 RSI: 00007faaa2aaa000 RDI: 0000000000000001 # [ 52.016643] RBP: 00007faaa2aaa000 R08: 00007faaa2aa9010 R09: 0000000000000000 # [ 52.031150] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 52.045612] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 52.060111] irq event stamp: 0 # [ 52.070010] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 52.083508] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 52.099175] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 52.114806] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 52.128335] ---[ end trace 19f7a216b67dc061 ]--- # [ 52.139994] lkdtm: Zero detected: saturated # REFCOUNT_ADD_ZERO: saw 'call trace:': ok ok 51 selftests: lkdtm: REFCOUNT_ADD_ZERO.sh # selftests: lkdtm: REFCOUNT_INC_SATURATED.sh # [ 53.321221] lkdtm: Performing direct entry REFCOUNT_INC_SATURATED # [ 53.330041] lkdtm: attempting bad refcount_inc() from saturated # [ 53.343177] ------------[ cut here ]------------ # [ 53.354832] refcount_t: saturated; leaking memory. # [ 53.366700] WARNING: CPU: 1 PID: 2299 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 53.382625] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 53.441587] CPU: 1 PID: 2299 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 53.456749] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 53.470063] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 53.482405] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 # [ 53.509895] RSP: 0018:ffffb7dc82c37e48 EFLAGS: 00010286 # [ 53.522239] RAX: 0000000000000000 RBX: 0000000000000035 RCX: 0000000000000000 # [ 53.536756] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 53.551239] RBP: ffffffff90ff9025 R08: 0000000000000000 R09: 0000000000000000 # [ 53.565736] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 53.580216] R13: ffffb7dc82c37f10 R14: ffffb7dc82c37f10 R15: ffff9e0406566000 # [ 53.594698] FS: 00007f6ee3832580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 53.610248] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 53.623174] CR2: 00007f6ee363c000 CR3: 00000001030fe004 CR4: 00000000003706e0 # [ 53.637672] Call Trace: # [ 53.646920] ? __warn+0x80/0x110 # [ 53.657033] ? refcount_warn_saturate+0x51/0x110 # [ 53.668697] ? report_bug+0x9e/0xc0 # [ 53.679090] ? handle_bug+0x41/0x90 # [ 53.689488] ? exc_invalid_op+0x14/0x70 # [ 53.700279] ? asm_exc_invalid_op+0x12/0x20 # [ 53.711457] ? refcount_warn_saturate+0x51/0x110 # [ 53.723117] ? refcount_warn_saturate+0x51/0x110 # [ 53.734779] lkdtm_REFCOUNT_INC_SATURATED+0x3c/0x64 # [ 53.746741] direct_entry.cold+0x2c/0x38 # [ 53.757627] full_proxy_write+0x53/0x80 # [ 53.768415] vfs_write+0xe7/0x3b0 # [ 53.778620] ksys_write+0x68/0xf0 # [ 53.788827] do_syscall_64+0x30/0x40 # [ 53.799322] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 53.811469] RIP: 0033:0x7f6ee3748473 # [ 53.821964] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 53.849454] RSP: 002b:00007ffc83298148 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 53.864418] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f6ee3748473 # [ 53.878899] RDX: 0000000000000017 RSI: 00007f6ee363c000 RDI: 0000000000000001 # [ 53.893381] RBP: 00007f6ee363c000 R08: 00007f6ee363b010 R09: 0000000000000000 # [ 53.907858] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 53.922338] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 53.936819] irq event stamp: 0 # [ 53.946743] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 53.960250] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 53.975893] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 53.991536] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 54.005044] ---[ end trace 19f7a216b67dc062 ]--- # [ 54.016707] lkdtm: Saturation detected: still saturated # REFCOUNT_INC_SATURATED: saw 'Saturation detected: still saturated': ok ok 52 selftests: lkdtm: REFCOUNT_INC_SATURATED.sh # selftests: lkdtm: REFCOUNT_DEC_SATURATED.sh # [ 54.151799] lkdtm: Performing direct entry REFCOUNT_DEC_SATURATED # [ 54.160516] lkdtm: attempting bad refcount_dec() from saturated # [ 54.173664] ------------[ cut here ]------------ # [ 54.185317] refcount_t: decrement hit 0; leaking memory. # [ 54.197757] WARNING: CPU: 0 PID: 2334 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 54.213747] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 54.272645] CPU: 0 PID: 2334 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 54.287860] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 54.301177] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 54.313498] Code: d8 3f f5 90 c6 05 7d f1 f6 01 01 e8 96 ed c0 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 3f f5 90 c6 05 64 f1 f6 01 01 e8 7c ed c0 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 54.340996] RSP: 0018:ffffb7dc82cc7e48 EFLAGS: 00010286 # [ 54.353316] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 0000000000000000 # [ 54.367803] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 # [ 54.382301] RBP: ffffffff90ff903c R08: 0000000000000000 R09: 0000000000000000 # [ 54.396793] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 54.411260] R13: ffffb7dc82cc7f10 R14: ffffb7dc82cc7f10 R15: ffff9e0402ec1000 # [ 54.425762] FS: 00007f0ba9822580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 54.441293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 54.454262] CR2: 00007f0ba962c000 CR3: 00000001030e2003 CR4: 00000000003706f0 # [ 54.468730] Call Trace: # [ 54.477974] ? __warn+0x80/0x110 # [ 54.488041] ? refcount_warn_saturate+0xfb/0x110 # [ 54.499702] ? report_bug+0x9e/0xc0 # [ 54.510119] ? handle_bug+0x41/0x90 # [ 54.520507] ? exc_invalid_op+0x14/0x70 # [ 54.531300] ? asm_exc_invalid_op+0x12/0x20 # [ 54.542495] ? refcount_warn_saturate+0xfb/0x110 # [ 54.554162] ? refcount_warn_saturate+0xfb/0x110 # [ 54.565789] lkdtm_REFCOUNT_DEC_SATURATED+0x37/0x5f # [ 54.577786] direct_entry.cold+0x2c/0x38 # [ 54.588691] full_proxy_write+0x53/0x80 # [ 54.599480] vfs_write+0xe7/0x3b0 # [ 54.609697] ksys_write+0x68/0xf0 # [ 54.619924] do_syscall_64+0x30/0x40 # [ 54.630417] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 54.642571] RIP: 0033:0x7f0ba9738473 # [ 54.653055] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 54.680581] RSP: 002b:00007fff0ac62498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 54.695535] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f0ba9738473 # [ 54.710014] RDX: 0000000000000017 RSI: 00007f0ba962c000 RDI: 0000000000000001 # [ 54.724532] RBP: 00007f0ba962c000 R08: 00007f0ba962b010 R09: 0000000000000000 # [ 54.738996] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 54.753512] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 54.768011] irq event stamp: 0 # [ 54.777931] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 54.791427] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 54.807073] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 54.822744] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 54.836277] ---[ end trace 19f7a216b67dc063 ]--- # [ 54.847938] lkdtm: Saturation detected: still saturated # REFCOUNT_DEC_SATURATED: saw 'Saturation detected: still saturated': ok ok 53 selftests: lkdtm: REFCOUNT_DEC_SATURATED.sh # selftests: lkdtm: REFCOUNT_ADD_SATURATED.sh # [ 55.018353] lkdtm: Performing direct entry REFCOUNT_ADD_SATURATED # [ 55.029123] lkdtm: attempting bad refcount_dec() from saturated # [ 55.042274] ------------[ cut here ]------------ # [ 55.053940] refcount_t: saturated; leaking memory. # [ 55.065840] WARNING: CPU: 0 PID: 2369 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 55.081780] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 55.140775] CPU: 0 PID: 2369 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 55.155951] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 55.169272] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 55.181633] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 21 f2 f6 01 00 75 ee 48 c7 c7 28 3f f5 90 c6 05 11 f2 f6 01 01 e8 26 ee c0 00 <0f> 0b c3 cc cc cc cc 80 3d fd f1 f6 01 00 75 cb 48 c7 c7 50 3f f5 # [ 55.209181] RSP: 0018:ffffb7dc82d4fe48 EFLAGS: 00010286 # [ 55.221494] RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000 # [ 55.235990] RDX: ffff9e047ac2c660 RSI: ffff9e047ac1bf70 RDI: ffff9e047ac1bf70 # [ 55.250448] RBP: ffffffff90ff9053 R08: 0000000000000000 R09: 0000000000000000 # [ 55.264972] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 55.279407] R13: ffffb7dc82d4ff10 R14: ffffb7dc82d4ff10 R15: ffff9e04027d4000 # [ 55.293928] FS: 00007f33be53f580(0000) GS:ffff9e047ac00000(0000) knlGS:0000000000000000 # [ 55.309444] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 55.322368] CR2: 00007f33be349000 CR3: 0000000105c7c003 CR4: 00000000003706f0 # [ 55.336850] Call Trace: # [ 55.346097] ? __warn+0x80/0x110 # [ 55.356206] ? refcount_warn_saturate+0x51/0x110 # [ 55.367881] ? report_bug+0x9e/0xc0 # [ 55.378268] ? handle_bug+0x41/0x90 # [ 55.388755] ? exc_invalid_op+0x14/0x70 # [ 55.399488] ? asm_exc_invalid_op+0x12/0x20 # [ 55.410706] ? refcount_warn_saturate+0x51/0x110 # [ 55.422330] ? refcount_warn_saturate+0x51/0x110 # [ 55.434023] lkdtm_REFCOUNT_ADD_SATURATED+0x3c/0x64 # [ 55.445952] direct_entry.cold+0x2c/0x38 # [ 55.456844] full_proxy_write+0x53/0x80 # [ 55.467625] vfs_write+0xe7/0x3b0 # [ 55.477843] ksys_write+0x68/0xf0 # [ 55.488039] do_syscall_64+0x30/0x40 # [ 55.498570] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 55.510731] RIP: 0033:0x7f33be455473 # [ 55.521227] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 55.548705] RSP: 002b:00007ffd5dfc70d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 55.563693] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f33be455473 # [ 55.578154] RDX: 0000000000000017 RSI: 00007f33be349000 RDI: 0000000000000001 # [ 55.592645] RBP: 00007f33be349000 R08: 00007f33be348010 R09: 0000000000000000 # [ 55.607110] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 55.621578] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 55.636094] irq event stamp: 0 # [ 55.645996] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 55.659527] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 55.675153] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 55.690809] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 55.704283] ---[ end trace 19f7a216b67dc064 ]--- # [ 55.715985] lkdtm: Saturation detected: still saturated # REFCOUNT_ADD_SATURATED: saw 'Saturation detected: still saturated': ok ok 54 selftests: lkdtm: REFCOUNT_ADD_SATURATED.sh # selftests: lkdtm: REFCOUNT_INC_NOT_ZERO_SATURATED.sh # [ 55.866597] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_SATURATED # [ 55.879361] lkdtm: attempting bad refcount_inc_not_zero() from saturated # [ 55.893359] ------------[ cut here ]------------ # [ 55.905021] refcount_t: saturated; leaking memory. # [ 55.916907] WARNING: CPU: 1 PID: 2401 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 55.932816] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 55.991771] CPU: 1 PID: 2401 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 56.006930] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 56.020245] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 56.032583] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 # [ 56.060100] RSP: 0018:ffffb7dc82de7e38 EFLAGS: 00010282 # [ 56.072422] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 # [ 56.086894] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 56.101372] RBP: ffffffff90ff8c80 R08: 0000000000000000 R09: 0000000000000000 # [ 56.115851] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 56.130330] R13: ffffb7dc82de7f10 R14: ffffb7dc82de7f10 R15: ffff9e040400e000 # [ 56.144809] FS: 00007fae81542580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 56.160356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 56.173281] CR2: 00007fae8134c000 CR3: 0000000106642006 CR4: 00000000003706e0 # [ 56.187760] Call Trace: # [ 56.197000] ? __warn+0x80/0x110 # [ 56.207107] ? refcount_warn_saturate+0x97/0x110 # [ 56.218771] ? report_bug+0x9e/0xc0 # [ 56.229174] ? handle_bug+0x41/0x90 # [ 56.239573] ? exc_invalid_op+0x14/0x70 # [ 56.250365] ? asm_exc_invalid_op+0x12/0x20 # [ 56.261544] ? refcount_warn_saturate+0x97/0x110 # [ 56.273204] ? refcount_warn_saturate+0x97/0x110 # [ 56.284870] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 56.297506] lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED+0x3e/0x76 # [ 56.310334] direct_entry.cold+0x2c/0x38 # [ 56.321223] full_proxy_write+0x53/0x80 # [ 56.332014] vfs_write+0xe7/0x3b0 # [ 56.342221] ksys_write+0x68/0xf0 # [ 56.352430] do_syscall_64+0x30/0x40 # [ 56.362925] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 56.375075] RIP: 0033:0x7fae81458473 # [ 56.385572] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 56.413065] RSP: 002b:00007ffdac838578 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 56.428029] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fae81458473 # [ 56.442508] RDX: 0000000000000020 RSI: 00007fae8134c000 RDI: 0000000000000001 # [ 56.456988] RBP: 00007fae8134c000 R08: 00007fae8134b010 R09: 0000000000000000 # [ 56.471467] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 56.485947] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 56.500431] irq event stamp: 0 # [ 56.510344] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 56.523853] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 56.539496] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 56.555137] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 56.568649] ---[ end trace 19f7a216b67dc065 ]--- # [ 56.580310] lkdtm: Saturation detected: still saturated # REFCOUNT_INC_NOT_ZERO_SATURATED: saw 'call trace:': ok ok 55 selftests: lkdtm: REFCOUNT_INC_NOT_ZERO_SATURATED.sh # selftests: lkdtm: REFCOUNT_ADD_NOT_ZERO_SATURATED.sh # [ 56.720881] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_SATURATED # [ 56.731161] lkdtm: attempting bad refcount_add_not_zero() from saturated # [ 56.738942] ------------[ cut here ]------------ # [ 56.744399] refcount_t: saturated; leaking memory. # [ 56.750069] WARNING: CPU: 3 PID: 2433 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 56.759795] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 56.818743] CPU: 3 PID: 2433 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 56.827687] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 56.841007] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 56.853347] Code: 01 01 e8 03 ee c0 00 0f 0b c3 cc cc cc cc 80 3d dc f1 f6 01 00 75 a8 48 c7 c7 28 3f f5 90 c6 05 cc f1 f6 01 01 e8 e0 ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 # [ 56.874621] RSP: 0018:ffffb7dc82e5fe38 EFLAGS: 00010282 # [ 56.880747] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 # [ 56.889032] RDX: ffff9e047adac660 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 # [ 56.897308] RBP: ffffffff90ff8ca0 R08: 0000000000000000 R09: 0000000000000000 # [ 56.911776] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 56.920036] R13: ffffb7dc82e5ff10 R14: ffffb7dc82e5ff10 R15: ffff9e040667f000 # [ 56.928290] FS: 00007f8455cb1580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 56.937620] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 56.944328] CR2: 00007f8455abb000 CR3: 0000000101224006 CR4: 00000000003706e0 # [ 56.952582] Call Trace: # [ 56.955607] ? __warn+0x80/0x110 # [ 56.965707] ? refcount_warn_saturate+0x97/0x110 # [ 56.971152] ? report_bug+0x9e/0xc0 # [ 56.975339] ? handle_bug+0x41/0x90 # [ 56.979524] ? exc_invalid_op+0x14/0x70 # [ 56.984097] ? asm_exc_invalid_op+0x12/0x20 # [ 56.989062] ? refcount_warn_saturate+0x97/0x110 # [ 56.994534] ? refcount_warn_saturate+0x97/0x110 # [ 56.999983] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 57.006400] lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED+0x3e/0x76 # [ 57.013013] direct_entry.cold+0x2c/0x38 # [ 57.017694] full_proxy_write+0x53/0x80 # [ 57.028482] vfs_write+0xe7/0x3b0 # [ 57.032473] ksys_write+0x68/0xf0 # [ 57.036464] do_syscall_64+0x30/0x40 # [ 57.040746] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 57.046688] RIP: 0033:0x7f8455bc7473 # [ 57.057183] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 57.078461] RSP: 002b:00007ffcba6f67a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 57.087211] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f8455bc7473 # [ 57.095473] RDX: 0000000000000020 RSI: 00007f8455abb000 RDI: 0000000000000001 # [ 57.103738] RBP: 00007f8455abb000 R08: 00007f8455aba010 R09: 0000000000000000 # [ 57.118217] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 57.126481] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 57.140959] irq event stamp: 0 # [ 57.144693] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 57.152018] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 57.161445] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 57.170872] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 57.178162] ---[ end trace 19f7a216b67dc066 ]--- # [ 57.183607] lkdtm: Saturation detected: still saturated # REFCOUNT_ADD_NOT_ZERO_SATURATED: saw 'call trace:': ok ok 56 selftests: lkdtm: REFCOUNT_ADD_NOT_ZERO_SATURATED.sh # selftests: lkdtm: REFCOUNT_DEC_AND_TEST_SATURATED.sh # [ 57.319006] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_SATURATED # [ 57.328519] lkdtm: attempting bad refcount_dec_and_test() from saturated # [ 57.342518] ------------[ cut here ]------------ # [ 57.354176] refcount_t: underflow; use-after-free. # [ 57.366061] WARNING: CPU: 1 PID: 2468 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 57.381969] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 57.440921] CPU: 1 PID: 2468 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 57.456084] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 57.469397] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 57.481741] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 # [ 57.509231] RSP: 0018:ffffb7dc82ef7e40 EFLAGS: 00010286 # [ 57.521576] RAX: 0000000000000000 RBX: 000000000000003a RCX: 0000000000000000 # [ 57.536054] RDX: ffff9e047acac660 RSI: ffff9e047ac9bf70 RDI: ffff9e047ac9bf70 # [ 57.550532] RBP: ffffffff90ff8cc0 R08: 0000000000000000 R09: 0000000000000000 # [ 57.565013] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 57.579492] R13: ffffb7dc82ef7f10 R14: ffffb7dc82ef7f10 R15: ffff9e0402ecf000 # [ 57.593973] FS: 00007f3d8e8de580(0000) GS:ffff9e047ac80000(0000) knlGS:0000000000000000 # [ 57.609517] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 57.622443] CR2: 00007f3d8e6e8000 CR3: 00000001032d8004 CR4: 00000000003706e0 # [ 57.636923] Call Trace: # [ 57.646163] ? __warn+0x80/0x110 # [ 57.656270] ? refcount_warn_saturate+0xba/0x110 # [ 57.667936] ? report_bug+0x9e/0xc0 # [ 57.678339] ? handle_bug+0x41/0x90 # [ 57.688737] ? exc_invalid_op+0x14/0x70 # [ 57.699528] ? asm_exc_invalid_op+0x12/0x20 # [ 57.710709] ? refcount_warn_saturate+0xba/0x110 # [ 57.722373] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 57.735006] lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED+0x3e/0x76 # [ 57.747832] direct_entry.cold+0x2c/0x38 # [ 57.758719] full_proxy_write+0x53/0x80 # [ 57.769508] vfs_write+0xe7/0x3b0 # [ 57.779714] ksys_write+0x68/0xf0 # [ 57.789921] do_syscall_64+0x30/0x40 # [ 57.800420] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 57.812570] RIP: 0033:0x7f3d8e7f4473 # [ 57.823068] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 57.850559] RSP: 002b:00007fffa60985f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 57.865524] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f3d8e7f4473 # [ 57.880004] RDX: 0000000000000020 RSI: 00007f3d8e6e8000 RDI: 0000000000000001 # [ 57.894482] RBP: 00007f3d8e6e8000 R08: 00007f3d8e6e7010 R09: 0000000000000000 # [ 57.908963] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 57.923442] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 57.937927] irq event stamp: 0 # [ 57.947835] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 57.961343] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 57.976989] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 57.992632] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 58.006143] ---[ end trace 19f7a216b67dc067 ]--- # [ 58.017806] lkdtm: Saturation detected: still saturated # REFCOUNT_DEC_AND_TEST_SATURATED: saw 'Saturation detected: still saturated': ok ok 57 selftests: lkdtm: REFCOUNT_DEC_AND_TEST_SATURATED.sh # selftests: lkdtm: REFCOUNT_SUB_AND_TEST_SATURATED.sh # [ 58.161790] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_SATURATED # [ 58.174919] lkdtm: attempting bad refcount_sub_and_test() from saturated # [ 58.182706] ------------[ cut here ]------------ # [ 58.188165] refcount_t: underflow; use-after-free. # [ 58.193828] WARNING: CPU: 3 PID: 2503 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 58.203560] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 58.256341] CPU: 3 PID: 2503 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 58.271494] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 58.278594] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 58.284723] Code: 01 01 e8 e0 ed c0 00 0f 0b c3 cc cc cc cc 80 3d b6 f1 f6 01 00 75 85 48 c7 c7 80 3f f5 90 c6 05 a6 f1 f6 01 01 e8 bd ed c0 00 <0f> 0b c3 cc cc cc cc 80 3d 91 f1 f6 01 00 0f 85 5e ff ff ff 48 c7 # [ 58.306001] RSP: 0018:ffffb7dc82f6fe40 EFLAGS: 00010286 # [ 58.312152] RAX: 0000000000000000 RBX: 000000000000003b RCX: 0000000000000000 # [ 58.320413] RDX: ffff9e047adac660 RSI: ffff9e047ad9bf70 RDI: ffff9e047ad9bf70 # [ 58.328682] RBP: ffffffff90ff8ce0 R08: 0000000000000000 R09: 0000000000000000 # [ 58.336948] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 58.351422] R13: ffffb7dc82f6ff10 R14: ffffb7dc82f6ff10 R15: ffff9e0405af2000 # [ 58.359686] FS: 00007f650c60a580(0000) GS:ffff9e047ad80000(0000) knlGS:0000000000000000 # [ 58.375232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 58.381940] CR2: 00007f650c414000 CR3: 0000000105dc2004 CR4: 00000000003706e0 # [ 58.390201] Call Trace: # [ 58.393224] ? __warn+0x80/0x110 # [ 58.397144] ? refcount_warn_saturate+0xba/0x110 # [ 58.408803] ? report_bug+0x9e/0xc0 # [ 58.412989] ? handle_bug+0x41/0x90 # [ 58.417174] ? exc_invalid_op+0x14/0x70 # [ 58.421747] ? asm_exc_invalid_op+0x12/0x20 # [ 58.426725] ? refcount_warn_saturate+0xba/0x110 # [ 58.432205] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 58.438622] lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED+0x3e/0x76 # [ 58.445234] direct_entry.cold+0x2c/0x38 # [ 58.449907] full_proxy_write+0x53/0x80 # [ 58.454480] vfs_write+0xe7/0x3b0 # [ 58.458469] ksys_write+0x68/0xf0 # [ 58.462460] do_syscall_64+0x30/0x40 # [ 58.466742] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 58.472676] RIP: 0033:0x7f650c520473 # [ 58.476976] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 58.498249] RSP: 002b:00007ffceb926838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 58.506997] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f650c520473 # [ 58.515260] RDX: 0000000000000020 RSI: 00007f650c414000 RDI: 0000000000000001 # [ 58.523522] RBP: 00007f650c414000 R08: 00007f650c413010 R09: 0000000000000000 # [ 58.531783] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 58.540046] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 58.548311] irq event stamp: 0 # [ 58.552035] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 58.565548] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 58.581195] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 58.596837] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 58.604130] ---[ end trace 19f7a216b67dc068 ]--- # [ 58.609577] lkdtm: Saturation detected: still saturated # REFCOUNT_SUB_AND_TEST_SATURATED: saw 'Saturation detected: still saturated': ok ok 58 selftests: lkdtm: REFCOUNT_SUB_AND_TEST_SATURATED.sh # selftests: lkdtm: REFCOUNT_TIMING.sh # Skipping REFCOUNT_TIMING: timing only ok 59 selftests: lkdtm: REFCOUNT_TIMING.sh # SKIP # selftests: lkdtm: ATOMIC_TIMING.sh # Skipping ATOMIC_TIMING: timing only ok 60 selftests: lkdtm: ATOMIC_TIMING.sh # SKIP # selftests: lkdtm: USERCOPY_HEAP_SIZE_TO.sh # [ 58.799392] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_TO # [ 58.809242] lkdtm: attempting good copy_to_user of correct size # [ 58.816166] lkdtm: attempting bad copy_to_user of too large size # USERCOPY_HEAP_SIZE_TO: missing 'call trace:': [FAIL] not ok 61 selftests: lkdtm: USERCOPY_HEAP_SIZE_TO.sh # exit=1 # selftests: lkdtm: USERCOPY_HEAP_SIZE_FROM.sh # Killed # [ 58.961740] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_FROM # [ 58.973425] lkdtm: attempting good copy_from_user of correct size # [ 58.980584] lkdtm: attempting bad copy_from_user of too large size # [ 58.993976] BUG: unable to handle page fault for address: ffff9e0405e40000 # [ 59.008138] #PF: supervisor write access in kernel mode # [ 59.014265] #PF: error_code(0x0003) - permissions violation # [ 59.020776] PGD 123001067 P4D 123001067 PUD 100236063 PMD 105e09063 PTE 8000000105e40061 # [ 59.030108] Oops: 0003 [#17] SMP PTI # [ 59.034385] CPU: 2 PID: 2627 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 59.043325] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 59.050423] RIP: 0010:memset_erms+0x9/0x20 # [ 59.055285] Code: 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 # [ 59.076548] RSP: 0018:ffffb7dc83157df8 EFLAGS: 00010246 # [ 59.082681] RAX: 0000000000000000 RBX: 00007fed39acd010 RCX: 0000000000000010 # [ 59.090940] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff9e0405e40000 # [ 59.099198] RBP: 00000000000003f0 R08: 0000000000000001 R09: ffff9e0405e40000 # [ 59.107458] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: ffff9e0405e3fc10 # [ 59.115732] R13: 0000000000000010 R14: 00007fed39acd000 R15: 00007fed39acd010 # [ 59.123992] FS: 00007fed39a9e580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 59.133321] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 59.140026] CR2: ffff9e0405e40000 CR3: 0000000101224006 CR4: 00000000003706e0 # [ 59.148285] Call Trace: # [ 59.151304] ? __die_body.cold+0x1a/0x1f # [ 59.155974] ? no_context+0x177/0x380 # [ 59.160354] ? exc_page_fault+0xd7/0x170 # [ 59.165022] ? asm_exc_page_fault+0x1e/0x30 # [ 59.169975] ? memset_erms+0x9/0x20 # [ 59.174157] _copy_from_user+0xae/0xd0 # [ 59.178631] do_usercopy_heap_size.cold+0x17b/0x1e8 # [ 59.184369] direct_entry.cold+0x2c/0x38 # [ 59.189038] full_proxy_write+0x53/0x80 # [ 59.193609] vfs_write+0xe7/0x3b0 # [ 59.197598] ksys_write+0x68/0xf0 # [ 59.201580] do_syscall_64+0x30/0x40 # [ 59.205860] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 59.211789] RIP: 0033:0x7fed399b4473 # [ 59.216067] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 59.237338] RSP: 002b:00007fffd76b2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 59.246084] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007fed399b4473 # [ 59.254344] RDX: 0000000000000018 RSI: 00007fed398a8000 RDI: 0000000000000001 # [ 59.262604] RBP: 00007fed398a8000 R08: 00007fed398a7010 R09: 0000000000000000 # [ 59.270861] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 59.279121] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 59.287385] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 uvcvideo cros_ec_sysfs cros_ec_lightbar cros_ec_sensorhub cros_ec_chardev cros_ec_debugfs videobuf2_vmalloc snd_soc_core cros_usbpd_charger videobuf2_memops cros_usbpd_logger videobuf2_v4l2 snd_compress gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 59.346372] CR2: ffff9e0405e40000 # [ 59.350360] ---[ end trace 19f7a216b67dc069 ]--- # [ 59.355806] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 59.360473] Code: 89 ff e8 3e e6 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 50 56 e9 02 # [ 59.381743] RSP: 0018:ffffb7dc812e7e60 EFLAGS: 00010282 # [ 59.387867] RAX: ffffffff8fb79540 RBX: 0000000000000001 RCX: 0000000000000000 # [ 59.396127] RDX: 0000000000000000 RSI: ffff9e047ad1bf70 RDI: ffffffff90b7e850 # [ 59.404387] RBP: ffffffff9105d410 R08: 0000000000000001 R09: 0000000000000001 # [ 59.412646] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 59.420907] R13: ffffb7dc812e7f10 R14: ffffb7dc812e7f10 R15: ffff9e0402af6000 # [ 59.429165] FS: 00007fed39a9e580(0000) GS:ffff9e047ad00000(0000) knlGS:0000000000000000 # [ 59.438491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 59.445197] CR2: ffff9e0405e40000 CR3: 0000000101224006 CR4: 00000000003706e0 # [ 59.453459] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 59.463652] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 2627, name: cat # [ 59.472397] INFO: lockdep is turned off. # [ 59.477064] irq event stamp: 0 # [ 59.480758] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 59.488047] hardirqs last disabled at (0): [] copy_process+0x664/0x1c60 # [ 59.497471] softirqs last enabled at (0): [] copy_process+0x664/0x1c60 # [ 59.506896] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 59.514176] CPU: 2 PID: 2627 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 59.523115] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 59.530209] Call Trace: # [ 59.533228] dump_stack+0x77/0x9b # [ 59.537217] ___might_sleep.cold+0xa6/0xb6 # [ 59.542080] exit_signals+0x1c/0x300 # [ 59.546351] do_exit+0xc2/0xab0 # [ 59.550136] ? ksys_write+0x68/0xf0 # [ 59.554319] make_task_dead+0x2f/0x30 # [ 59.558695] rewind_stack_and_make_dead+0x17/0x20 # [ 59.564229] RIP: 0033:0x7fed399b4473 # [ 59.568498] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 59.589771] RSP: 002b:00007fffd76b2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 59.598516] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007fed399b4473 # [ 59.606776] RDX: 0000000000000018 RSI: 00007fed398a8000 RDI: 0000000000000001 # [ 59.615035] RBP: 00007fed398a8000 R08: 00007fed398a7010 R09: 0000000000000000 # [ 59.623294] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 59.631555] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # USERCOPY_HEAP_SIZE_FROM: saw 'call trace:': ok ok 62 selftests: lkdtm: USERCOPY_HEAP_SIZE_FROM.sh # selftests: lkdtm: USERCOPY_HEAP_WHITELIST_TO.sh # [ 59.807733] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_TO # [ 59.821396] lkdtm: attempting good copy_to_user inside whitelist # [ 59.828423] lkdtm: attempting bad copy_to_user outside whitelist # USERCOPY_HEAP_WHITELIST_TO: missing 'call trace:': [FAIL] not ok 63 selftests: lkdtm: USERCOPY_HEAP_WHITELIST_TO.sh # exit=1 # selftests: lkdtm: USERCOPY_HEAP_WHITELIST_FROM.sh # [ 59.980848] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_FROM # [ 59.992440] lkdtm: attempting good copy_from_user inside whitelist # [ 60.005856] lkdtm: attempting bad copy_from_user outside whitelist # USERCOPY_HEAP_WHITELIST_FROM: missing 'call trace:': [FAIL] not ok 64 selftests: lkdtm: USERCOPY_HEAP_WHITELIST_FROM.sh # exit=1 # selftests: lkdtm: USERCOPY_STACK_FRAME_TO.sh # [ 60.183435] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_TO # [ 60.194394] lkdtm: good_stack: ffffb7dc832dfe20-ffffb7dc832dfe40 # [ 60.207637] lkdtm: bad_stack : ffffb7dc832dfda8-ffffb7dc832dfdc8 # [ 60.220861] lkdtm: attempting good copy_to_user of local stack # [ 60.233851] lkdtm: attempting bad copy_to_user of distant stack # USERCOPY_STACK_FRAME_TO: missing 'call trace:': [FAIL] not ok 65 selftests: lkdtm: USERCOPY_STACK_FRAME_TO.sh # exit=1 # selftests: lkdtm: USERCOPY_STACK_FRAME_FROM.sh # [ 60.391531] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_FROM # [ 60.403548] lkdtm: good_stack: ffffb7dc8337fe20-ffffb7dc8337fe40 # [ 60.410562] lkdtm: bad_stack : ffffb7dc8337fda8-ffffb7dc8337fdc8 # [ 60.423780] lkdtm: attempting good copy_from_user of local stack # [ 60.436992] lkdtm: attempting bad copy_from_user of distant stack # USERCOPY_STACK_FRAME_FROM: missing 'call trace:': [FAIL] not ok 66 selftests: lkdtm: USERCOPY_STACK_FRAME_FROM.sh # exit=1 # selftests: lkdtm: USERCOPY_STACK_BEYOND.sh # [ 60.563403] lkdtm: Performing direct entry USERCOPY_STACK_BEYOND # [ 60.575429] lkdtm: good_stack: ffffb7dc83407e20-ffffb7dc83407e40 # [ 60.588668] lkdtm: bad_stack : ffffb7dc83407ff8-ffffb7dc83408018 # [ 60.601897] lkdtm: attempting good copy_to_user of local stack # [ 60.614908] lkdtm: attempting bad copy_to_user of distant stack # [ 60.628044] lkdtm: copy_to_user failed, but lacked Oops # USERCOPY_STACK_BEYOND: missing 'call trace:': [FAIL] not ok 67 selftests: lkdtm: USERCOPY_STACK_BEYOND.sh # exit=1 # selftests: lkdtm: USERCOPY_KERNEL.sh # [ 60.773259] lkdtm: Performing direct entry USERCOPY_KERNEL # [ 60.783553] lkdtm: attempting good copy_to_user from kernel rodata: ffffffff90b7ecf0 # [ 60.798735] lkdtm: attempting bad copy_to_user from kernel text: ffffffff8f2e1300 # [ 60.813575] lkdtm: FAIL: survived bad copy_to_user() # USERCOPY_KERNEL: missing 'call trace:': [FAIL] not ok 68 selftests: lkdtm: USERCOPY_KERNEL.sh # exit=1 # selftests: lkdtm: STACKLEAK_ERASING.sh # [ 60.959383] lkdtm: Performing direct entry STACKLEAK_ERASING # [ 60.968990] lkdtm: checking unused part of the thread stack (15928 bytes)... # [ 60.983392] lkdtm: FAIL: the erased part is not found (checked 15928 bytes) # [ 60.997672] lkdtm: FAIL: the thread stack is NOT properly erased # [ 61.010899] CPU: 0 PID: 2869 Comm: cat Tainted: G D W 5.10.182-cip35 #1 # [ 61.026033] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 61.033126] Call Trace: # [ 61.036147] dump_stack+0x77/0x9b # [ 61.040132] lkdtm_STACKLEAK_ERASING+0x116/0x144 # [ 61.045568] direct_entry.cold+0x2c/0x38 # [ 61.050238] full_proxy_write+0x53/0x80 # [ 61.054816] vfs_write+0xe7/0x3b0 # [ 61.058805] ksys_write+0x68/0xf0 # [ 61.062785] do_syscall_64+0x30/0x40 # [ 61.067069] entry_SYSCALL_64_after_hwframe+0x61/0xc6 # [ 61.072999] RIP: 0033:0x7ff250153473 # [ 61.077279] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 61.098550] RSP: 002b:00007ffda51f1508 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 61.107286] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007ff250153473 # [ 61.115545] RDX: 0000000000000012 RSI: 00007ff250047000 RDI: 0000000000000001 # [ 61.123805] RBP: 00007ff250047000 R08: 00007ff250046010 R09: 0000000000000000 # [ 61.132065] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 61.140324] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # STACKLEAK_ERASING: missing 'OK: the rest of the thread stack is properly erased': [FAIL] not ok 69 selftests: lkdtm: STACKLEAK_ERASING.sh # exit=1 # selftests: lkdtm: CFI_FORWARD_PROTO.sh # [ 61.323710] lkdtm: Performing direct entry CFI_FORWARD_PROTO # [ 61.335476] lkdtm: Calling matched prototype ... # [ 61.340942] lkdtm: Calling mismatched prototype ... # [ 61.352894] lkdtm: Fail: survived mismatched prototype function call! # CFI_FORWARD_PROTO: missing 'call trace:': [FAIL] not ok 70 selftests: lkdtm: CFI_FORWARD_PROTO.sh # exit=1 lkdtm_PANIC_sh skip lkdtm_BUG_sh pass lkdtm_WARNING_sh pass lkdtm_WARNING_MESSAGE_sh pass lkdtm_EXCEPTION_sh pass lkdtm_LOOP_sh skip lkdtm_EXHAUST_STACK_sh skip lkdtm_CORRUPT_STACK_sh skip lkdtm_CORRUPT_STACK_STRONG_sh skip lkdtm_CORRUPT_LIST_ADD_sh fail lkdtm_CORRUPT_LIST_DEL_sh fail lkdtm_STACK_GUARD_PAGE_LEADING_sh pass lkdtm_STACK_GUARD_PAGE_TRAILING_sh pass lkdtm_UNSET_SMEP_sh pass lkdtm_DOUBLE_FAULT_sh skip lkdtm_CORRUPT_PAC_sh skip lkdtm_UNALIGNED_LOAD_STORE_WRITE_sh skip lkdtm_OVERWRITE_ALLOCATION_sh skip lkdtm_WRITE_AFTER_FREE_sh skip lkdtm_READ_AFTER_FREE_sh fail lkdtm_WRITE_BUDDY_AFTER_FREE_sh skip lkdtm_READ_BUDDY_AFTER_FREE_sh fail lkdtm_SLAB_FREE_DOUBLE_sh fail lkdtm_SLAB_FREE_CROSS_sh fail lkdtm_SLAB_FREE_PAGE_sh fail lkdtm_SOFTLOCKUP_sh skip lkdtm_HARDLOCKUP_sh skip lkdtm_SPINLOCKUP_sh skip lkdtm_HUNG_TASK_sh skip lkdtm_EXEC_DATA_sh pass lkdtm_EXEC_STACK_sh pass lkdtm_EXEC_KMALLOC_sh pass lkdtm_EXEC_VMALLOC_sh pass lkdtm_EXEC_RODATA_sh pass lkdtm_EXEC_USERSPACE_sh pass lkdtm_EXEC_NULL_sh pass lkdtm_ACCESS_USERSPACE_sh pass lkdtm_ACCESS_NULL_sh pass lkdtm_WRITE_RO_sh pass lkdtm_WRITE_RO_AFTER_INIT_sh pass lkdtm_WRITE_KERN_sh pass lkdtm_REFCOUNT_INC_OVERFLOW_sh pass lkdtm_REFCOUNT_ADD_OVERFLOW_sh pass lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW_sh pass lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW_sh pass lkdtm_REFCOUNT_DEC_ZERO_sh pass lkdtm_REFCOUNT_DEC_NEGATIVE_sh pass lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE_sh pass lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE_sh pass lkdtm_REFCOUNT_INC_ZERO_sh pass lkdtm_REFCOUNT_ADD_ZERO_sh pass lkdtm_REFCOUNT_INC_SATURATED_sh pass lkdtm_REFCOUNT_DEC_SATURATED_sh pass lkdtm_REFCOUNT_ADD_SATURATED_sh pass lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED_sh pass lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED_sh pass lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED_sh pass lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED_sh pass lkdtm_REFCOUNT_TIMING_sh skip lkdtm_ATOMIC_TIMING_sh skip lkdtm_USERCOPY_HEAP_SIZE_TO_sh fail lkdtm_USERCOPY_HEAP_SIZE_FROM_sh pass lkdtm_USERCOPY_HEAP_WHITELIST_TO_sh fail lkdtm_USERCOPY_HEAP_WHITELIST_FROM_sh fail lkdtm_USERCOPY_STACK_FRAME_TO_sh fail lkdtm_USERCOPY_STACK_FRAME_FROM_sh fail lkdtm_USERCOPY_STACK_BEYOND_sh fail lkdtm_USERCOPY_KERNEL_sh fail lkdtm_STACKLEAK_ERASING_sh fail lkdtm_CFI_FORWARD_PROTO_sh fail + ../../utils/send-to-lava.sh ./output/result.txt + set +x / #