[Enter `^Ec?' for help] ectory: /sys/devices/system/cpu/ 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_B:0.0.11/4d655eab RW_B:0.5.5/cr50_v1.9308_87_mp.479-d7921eab 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_A found @ 200000 (65536 bytes) FMAP: area VBLOCK_A found @ 200000 (65536 bytes) VB2:vb2_verify_keyblock() Checking key block signature... FMAP: area VBLOCK_A found @ 200000 (65536 bytes) FMAP: area VBLOCK_A found @ 200000 (65536 bytes) VB2:vb2_verify_fw_preamble() Verifying preamble. Phase 4 FMAP: area FW_MAIN_A found @ 210000 (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_B:0.0.11/4d655eab RW_B:0.5.5/cr50_v1.9308_87_mp.479-d7921eab 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 59136 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_B:0.0.11/4d655eab RW_B:0.5.5/cr50_v1.9308_87_mp.479-d7921eab 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 3 apic_id 3. AP: slot 2 apic_id 2. AP: slot 1 apic_id 1. Waiting for 2nd SIPI to complete...done. 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 0x7afff800 In relocation handler: CPU 2 New SMBASE=0x7afff800 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. 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: 0x03 done. apic_id: 0x02 done. Skip microcode update Skip microcode update CPU #3 initialized CPU #2 initialized apic_id: 0x01 done. Skip microcode update CPU #1 initialized bsp_do_flight_plan done after 226 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 375987 run 163949 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 8974 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 8975 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 8972 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 8964 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 8974 usecs scan_usb_bus for USB0 port 0 done scan_bus: scanning of bus USB0 port 0 took 90967 usecs scan_usb_bus for PCI: 00:14.0 done scan_bus: scanning of bus PCI: 00:14.0 took 107760 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 14158 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 14157 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 22372 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 53527 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 13878 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 9257 usecs PCI: 00:1f.3 scanning... scan_bus: scanning of bus PCI: 00:1f.3 took 2719 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 10039 usecs scan_bus: scanning of bus DOMAIN: 0000 took 466086 usecs root_dev_scan_bus for Root Device done scan_bus: scanning of bus Root Device took 486197 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 825977 exit 39239 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 2113893 exit 30 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 229 run 139279 exit 18926 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 30732 usecs CPU_CLUSTER: 0 init ... CPU_CLUSTER: 0 init finished in 2444 usecs PCI: 00:00.0 init ... CPU TDP: 5 Watts CPU PL2 = 18 Watts PCI: 00:00.0 init finished in 6984 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 2249 usecs PCI: 00:14.0 init ... PCI: 00:14.0 init finished in 2248 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 5968 usecs PCI: 00:15.1 init ... DW I2C bus 1 at 0xd1133000 (400 KHz) PCI: 00:15.1 init finished in 5967 usecs PCI: 00:16.0 init ... PCI: 00:16.0 init finished in 2249 usecs PCI: 00:19.1 init ... DW I2C bus 5 at 0xd1136000 (400 KHz) PCI: 00:19.1 init finished in 5968 usecs PCI: 00:1c.0 init ... Initializing PCH PCIe bridge. PCI: 00:1c.0 init finished in 5279 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 23483 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 23797 usecs PCI: 00:1f.4 init ... PCI: 00:1f.4 init finished in 2260 usecs PCI: 01:00.0 init ... PCI: 01:00.0 init finished in 2383 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_v2.0.425-6e0dd622e running image: 1 EC returned error result code 1 PNP: 0c09.0 init finished in 24431 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 2023-11-22 18:56:54 UTC POST: Unexpected post code in previous boot: 0x34 ELOG: Event(A3) added with size 11 at 2023-11-22 18:56:55 UTC ELOG: Event(A6) added with size 13 at 2023-11-22 18:56:55 UTC ELOG: Event(92) added with size 9 at 2023-11-22 18:56:55 UTC ELOG: Event(9A) added with size 9 at 2023-11-22 18:56:55 UTC ELOG: Event(AD) added with size 10 at 2023-11-22 18:56:55 UTC ELOG: Event(9F) added with size 14 at 2023-11-22 18:56:55 UTC BS: BS_DEV_INIT times (us): entry 0 run 416902 exit 66281 ELOG: Event(A1) added with size 10 at 2023-11-22 18:56:55 UTC elog_add_boot_reason: Logged recovery mode boot (Dev-switch on), reason: 0x1b ELOG: Event(A0) added with size 9 at 2023-11-22 18:56:55 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 25544 run 3960 exit 5193 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 ce60 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 00000058 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 537968 exit 146855 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 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 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() call enable_fixed_mtrr() CPU physical address size: 39 bits CPU physical address size: 39 bits CBFS: Found @ offset 223040 size 360b4 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 : 0x00084000 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 635 run 261843 exit 135700 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 12061625/tftp-deploy-f8sgk241/kernel/bzImage 12061625/tftp-deploy-f8sgk241/kernel/cmdline 12061625/tftp-deploy-f8sgk241/ramdisk/ramdisk.cpio.gz tftpboot 192.168.201.1 12061625/tftp-deploy-f8sgk241/kernel/bzIploy-f8sgk241/kernel/cmdline 12061625/tftp-deploy-f8sgk241/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:68:0a:98 Sending DHCP discover... done. Waiting for reply... done. Sending DHCP request... done. Waiting for reply... done. My ip is 192.168.201.18 The DHCP server ip is 192.168.201.1 TFTP server IP predefined by user: 192.168.201.1 Bootfile predefined by user: 12061625/tftp-deploy-f8sgk241/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 ################################################################ 01000000 ############################################################# done. The bootfile was 17275488 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: 12061625/tftp-deploy-f8sgk241/kernel/cmdline The command line is: earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog earlycon deferred_probe_timeout=60 console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=192.168.201.1:/var/lib/lava/dispatcher/tmp/12061625/extract-nfsrootfs-qzvt7rly,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: 20614682 Starting kernel ... <5>[ 0.000000] Linux version 5.10.201-cip40 (KernelCI@build-j20328-x86-64-gcc-10-x86-64-defconfig-x86-board-pwnml) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Wed Nov 22 18:39:14 UTC 2023 <6>[ 0.000000] Command line: earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog earlycon deferred_probe_timeout=60 console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=192.168.201.1:/var/lib/lava/dispatcher/tmp/12061625/extract-nfsrootfs-qzvt7rly,tcp,hard ip=dhcp tftpserverip=192.168.201.1 <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>[ 0.000053] last_pfn = 0x17f000 max_arch_pfn = 0x400000000 <6>[ 0.001312] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT <6>[ 0.006710] last_pfn = 0x7a998 max_arch_pfn = 0x400000000 <6>[ 0.024140] check: Scanning 1 areas for low memory corruption <6>[ 0.024152] Using GB pages for direct mapping <6>[ 0.024691] RAMDISK: [mem 0x375fe000-0x37ffffff] <6>[ 0.024698] ACPI: Early table checksum verification disabled <6>[ 0.024706] ACPI: RSDP 0x00000000000F0000 000024 (v02 CORE ) <6>[ 0.024718] ACPI: XSDT 0x000000007AA9A0E0 00006C (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024733] ACPI: FACP 0x000000007AA9E970 0000F4 (v04 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024748] ACPI: DSDT 0x000000007AA9A280 0046E3 (v05 COREv4 COREBOOT 20110725 INTL 20180531) <6>[ 0.024760] ACPI: FACS 0x000000007AA9A240 000040 <6>[ 0.024770] ACPI: FACS 0x000000007AA9A240 000040 <6>[ 0.024781] ACPI: SSDT 0x000000007AA9EA70 000EFA (v02 CORE COREBOOT 0000002A CORE 0000002A) <6>[ 0.024793] ACPI: MCFG 0x000000007AA9F970 00003C (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024804] ACPI: TPM2 0x000000007AA9F9B0 000040 (v04 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024815] ACPI: APIC 0x000000007AA9F9F0 00006C (v02 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024826] ACPI: NHLT 0x000000007AA9FA60 001B1C (v05 GOOGLE RAMMUS 00000000 CORE 00000000) <6>[ 0.024837] ACPI: DMAR 0x000000007AAA1580 000088 (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024848] ACPI: DBG2 0x000000007AAA3610 000061 (v00 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024859] ACPI: HPET 0x000000007AAA3680 000038 (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.024870] ACPI: Reserving FACP table memory at [mem 0x7aa9e970-0x7aa9ea63] <6>[ 0.024875] ACPI: Reserving DSDT table memory at [mem 0x7aa9a280-0x7aa9e962] <6>[ 0.024880] ACPI: Reserving FACS table memory at [mem 0x7aa9a240-0x7aa9a27f] <6>[ 0.024884] ACPI: Reserving FACS table memory at [mem 0x7aa9a240-0x7aa9a27f] <6>[ 0.024888] ACPI: Reserving SSDT table memory at [mem 0x7aa9ea70-0x7aa9f969] <6>[ 0.024893] ACPI: Reserving MCFG table memory at [mem 0x7aa9f970-0x7aa9f9ab] <6>[ 0.024897] ACPI: Reserving TPM2 table memory at [mem 0x7aa9f9b0-0x7aa9f9ef] <6>[ 0.024901] ACPI: Reserving APIC table memory at [mem 0x7aa9f9f0-0x7aa9fa5b] <6>[ 0.024906] ACPI: Reserving NHLT table memory at [mem 0x7aa9fa60-0x7aaa157b] <6>[ 0.024910] ACPI: Reserving DMAR table memory at [mem 0x7aaa1580-0x7aaa1607] <6>[ 0.024915] ACPI: Reserving DBG2 table memory at [mem 0x7aaa3610-0x7aaa3670] <6>[ 0.024919] ACPI: Reserving HPET table memory at [mem 0x7aaa3680-0x7aaa36b7] <6>[ 0.025056] No NUMA configuration found <6>[ 0.025061] Faking a node at [mem 0x0000000000000000-0x000000017effffff] <6>[ 0.025070] NODE_DATA(0) allocated [mem 0x17effa000-0x17effdfff] <6>[ 0.025112] Zone ranges: <6>[ 0.025117] DMA [mem 0x0000000000001000-0x0000000000ffffff] <6>[ 0.025124] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] <6>[ 0.025130] Normal [mem 0x0000000100000000-0x000000017effffff] <6>[ 0.025137] Movable zone start for each node <6>[ 0.025141] Early memory node ranges <6>[ 0.025146] node 0: [mem 0x0000000000001000-0x000000000009ffff] <6>[ 0.025151] node 0: [mem 0x0000000000100000-0x000000007a997fff] <6>[ 0.025155] node 0: [mem 0x0000000100000000-0x000000017effffff] <6>[ 0.025161] Initmem setup node 0 [mem 0x0000000000001000-0x000000017effffff] <6>[ 0.025194] On node 0, zone DMA: 1 pages in unavailable ranges <6>[ 0.025235] On node 0, zone DMA: 96 pages in unavailable ranges <6>[ 0.035968] On node 0, zone Normal: 22120 pages in unavailable ranges <6>[ 0.036040] On node 0, zone Normal: 4096 pages in unavailable ranges <6>[ 0.036066] Reserving Intel graphics memory at [mem 0x7c000000-0x7fffffff] <6>[ 0.036422] ACPI: PM-Timer IO Port: 0x1808 <6>[ 0.036476] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119 <6>[ 0.036489] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) <6>[ 0.036495] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) <6>[ 0.036508] Using ACPI (MADT) for SMP configuration information <6>[ 0.036514] ACPI: HPET id: 0x8086a701 base: 0xfed00000 <6>[ 0.036522] TSC deadline timer available <6>[ 0.036527] smpboot: Allowing 4 CPUs, 0 hotplug CPUs <6>[ 0.036555] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] <6>[ 0.036561] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000fffff] <6>[ 0.036567] PM: hibernation: Registered nosave memory: [mem 0x7a998000-0x7affffff] <6>[ 0.036571] PM: hibernation: Registered nosave memory: [mem 0x7b000000-0x7fffffff] <6>[ 0.036575] PM: hibernation: Registered nosave memory: [mem 0x80000000-0xdfffffff] <6>[ 0.036579] PM: hibernation: Registered nosave memory: [mem 0xe0000000-0xe3ffffff] <6>[ 0.036583] PM: hibernation: Registered nosave memory: [mem 0xe4000000-0xfdffffff] <6>[ 0.036587] PM: hibernation: Registered nosave memory: [mem 0xfe000000-0xfe00ffff] <6>[ 0.036591] PM: hibernation: Registered nosave memory: [mem 0xfe010000-0xfed0ffff] <6>[ 0.036596] PM: hibernation: Registered nosave memory: [mem 0xfed10000-0xfed19fff] <6>[ 0.036600] PM: hibernation: Registered nosave memory: [mem 0xfed1a000-0xfed7ffff] <6>[ 0.036604] PM: hibernation: Registered nosave memory: [mem 0xfed80000-0xfed84fff] <6>[ 0.036608] PM: hibernation: Registered nosave memory: [mem 0xfed85000-0xfed8ffff] <6>[ 0.036612] PM: hibernation: Registered nosave memory: [mem 0xfed90000-0xfed91fff] <6>[ 0.036616] PM: hibernation: Registered nosave memory: [mem 0xfed92000-0xffffffff] <6>[ 0.036624] [mem 0x80000000-0xdfffffff] available for PCI devices <6>[ 0.036631] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns <6>[ 0.052848] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:4 nr_node_ids:1 <6>[ 0.053119] percpu: Embedded 59 pages/cpu s200848 r8192 d32624 u524288 <6>[ 0.053195] Built 1 zonelists, mobility grouping on. Total pages: 1006266 <6>[ 0.053200] Policy zone: Normal <5>[ 0.053213] Kernel command line: earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog earlycon deferred_probe_timeout=60 console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=192.168.201.1:/var/lib/lava/dispatcher/tmp/12061625/extract-nfsrootfs-qzvt7rly,tcp,hard ip=dhcp tftpserverip=192.168.201.1 <6>[ 0.053776] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) <6>[ 0.054017] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) <6>[ 0.054103] mem auto-init: stack:off, heap alloc:off, heap free:off <6>[ 0.074988] Memory: 3876296K/4089052K available (22546K kernel code, 3713K rwdata, 10972K rodata, 2168K init, 13956K bss, 212496K reserved, 0K cma-reserved) <6>[ 0.075131] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <6>[ 0.075188] Kernel/User page tables isolation: enabled <6>[ 0.075304] ftrace: allocating 61871 entries in 242 pages <6>[ 0.140668] ftrace: allocated 242 pages with 5 groups <6>[ 0.140936] Running RCU self tests <6>[ 0.140951] rcu: Hierarchical RCU implementation. <6>[ 0.140956] rcu: RCU event tracing is enabled. <6>[ 0.140960] rcu: RCU lockdep checking is enabled. <6>[ 0.140964] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. <6>[ 0.140969] Rude variant of Tasks RCU enabled. <6>[ 0.140973] Tracing variant of Tasks RCU enabled. <6>[ 0.140978] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies. <6>[ 0.140982] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 <6>[ 0.150101] NR_IRQS: 4352, nr_irqs: 1024, preallocated irqs: 16 <5>[ 0.150564] random: crng init done <6>[ 0.150665] Console: colour dummy device 80x25 <6>[ 0.224101] printk: console [ttyS0] enabled <4>[ 0.224489] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar <4>[ 0.225172] ... MAX_LOCKDEP_SUBCLASSES: 8 <4>[ 0.225554] ... MAX_LOCK_DEPTH: 48 <4>[ 0.225942] ... MAX_LOCKDEP_KEYS: 8192 <4>[ 0.226345] ... CLASSHASH_SIZE: 4096 <4>[ 0.226747] ... MAX_LOCKDEP_ENTRIES: 32768 <4>[ 0.227158] ... MAX_LOCKDEP_CHAINS: 65536 <4>[ 0.227568] ... CHAINHASH_SIZE: 32768 <4>[ 0.227978] memory used by lock dependency info: 6365 kB <4>[ 0.228467] memory used for stack traces: 4224 kB <4>[ 0.228907] per task-struct memory footprint: 1920 bytes <6>[ 0.229451] ACPI: Core revision 20200925 <6>[ 0.230025] hpet: HPET dysfunctional in PC10. Force disabled. <6>[ 0.230547] APIC: Switch to symmetric I/O mode setup <6>[ 0.235055] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x170fff30cc4, max_idle_ns: 440795237869 ns <6>[ 0.235994] Calibrating delay loop (skipped), value calculated using timer frequency.. 3199.92 BogoMIPS (lpj=1599960) <6>[ 0.236978] mce: CPU0: Thermal monitoring enabled (TM1) <6>[ 0.236978] process: using mwait in idle threads <6>[ 0.236978] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 <6>[ 0.236978] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 <6>[ 0.236978] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization <6>[ 0.236978] Spectre V2 : Mitigation: IBRS <6>[ 0.236978] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch <6>[ 0.236978] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT <6>[ 0.236978] RETBleed: Mitigation: IBRS <6>[ 0.236978] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier <6>[ 0.236978] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl <6>[ 0.236978] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp <6>[ 0.236978] MDS: Vulnerable: Clear CPU buffers attempted, no microcode <6>[ 0.236978] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode <6>[ 0.236978] SRBDS: Vulnerable: No microcode <6>[ 0.236978] GDS: Vulnerable: No microcode <6>[ 0.236978] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' <6>[ 0.236978] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' <6>[ 0.236978] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' <6>[ 0.236978] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers' <6>[ 0.236978] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR' <6>[ 0.236978] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 <6>[ 0.236978] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64 <6>[ 0.236978] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64 <6>[ 0.236978] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format. <4>[ 0.236978] ------------[ cut here ]------------ <4>[ 0.236978] missing return thunk: lkdtm_rodata_do_nothing+0x0/0x10-lkdtm_rodata_do_nothing+0x5/0x10: e9 00 00 00 00 <4>[ 0.236978] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:725 apply_returns+0x1f5/0x220 <4>[ 0.236978] Modules linked in: <4>[ 0.236978] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.201-cip40 #1 <4>[ 0.236978] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 0.236978] RIP: 0010:apply_returns+0x1f5/0x220 <4>[ 0.236978] Code: 67 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 b0 eb 07 b4 c6 05 00 15 67 02 01 e8 25 fc 15 01 <0f> 0b e9 b9 fe ff ff 44 89 f9 c7 00 cc cc cc cc c7 44 08 fc cc cc <4>[ 0.236978] RSP: 0000:ffffffffb4403e28 EFLAGS: 00010282 <4>[ 0.236978] RAX: 0000000000000000 RBX: ffffffffb502c178 RCX: 0000000000000000 <4>[ 0.236978] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb2177b91 <4>[ 0.236978] RBP: ffffffffb3cf8540 R08: 0000000000000001 R09: 0000000000000001 <4>[ 0.236978] R10: ffffffffb448fee0 R11: 3fffffffffffffff R12: ffffffffb50454ac <4>[ 0.236978] R13: cccccccccccccccc R14: ffffffffb3cf8545 R15: 0000000000000004 <4>[ 0.236978] FS: 0000000000000000(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 <4>[ 0.236978] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 0.236978] CR2: ffff95e53efff000 CR3: 0000000019426001 CR4: 00000000003706f0 <4>[ 0.236978] Call Trace: <4>[ 0.236978] ? __warn+0x80/0x110 <4>[ 0.236978] ? apply_returns+0x1f5/0x220 <4>[ 0.236978] ? report_bug+0x9e/0xc0 <4>[ 0.236978] ? handle_bug+0x41/0x90 <4>[ 0.236978] ? exc_invalid_op+0x14/0x70 <4>[ 0.236978] ? asm_exc_invalid_op+0x12/0x20 <4>[ 0.236978] ? console_unlock+0x4d1/0x5f0 <4>[ 0.236978] ? apply_returns+0x1f5/0x220 <4>[ 0.236978] ? apply_returns+0x1f5/0x220 <4>[ 0.236978] alternative_instructions+0x7d/0x143 <4>[ 0.236978] arch_cpu_finalize_init+0x28/0x47 <4>[ 0.236978] start_kernel+0x4a3/0x54d <4>[ 0.236978] secondary_startup_64_no_verify+0xc2/0xcb <4>[ 0.236978] irq event stamp: 200371 <4>[ 0.236978] hardirqs last enabled at (200379): [] console_unlock+0x4d1/0x5f0 <4>[ 0.236978] hardirqs last disabled at (200386): [] console_unlock+0x444/0x5f0 <4>[ 0.236978] softirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 0.236978] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 0.236978] ---[ end trace fd88bdcc3c2da47b ]--- <6>[ 0.236978] Freeing SMP alternatives memory: 48K <6>[ 0.236978] pid_max: default: 32768 minimum: 301 <6>[ 0.236978] LSM: Security Framework initializing <6>[ 0.236978] SELinux: Initializing. <6>[ 0.236978] LSM support for eBPF active <6>[ 0.236978] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) <6>[ 0.236978] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) <6>[ 0.236978] smpboot: CPU0: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz (family: 0x6, model: 0x8e, stepping: 0x9) <6>[ 0.237587] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver. <6>[ 0.237992] ... version: 4 <6>[ 0.238370] ... bit width: 48 <6>[ 0.238752] ... generic registers: 4 <6>[ 0.238983] ... value mask: 0000ffffffffffff <6>[ 0.239468] ... max period: 00007fffffffffff <6>[ 0.239951] ... fixed-purpose events: 3 <6>[ 0.239983] ... event mask: 000000070000000f <6>[ 0.240985] rcu: Hierarchical SRCU implementation. <6>[ 0.243415] smp: Bringing up secondary CPUs ... <6>[ 0.244582] x86: Booting SMP configuration: <6>[ 0.244996] .... node #0, CPUs: #1 <4>[ 0.246088] 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>[ 0.246995] 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>[ 0.248609] #2 #3 <6>[ 0.251044] smp: Brought up 1 node, 4 CPUs <6>[ 0.251637] smpboot: Max logical packages: 1 <6>[ 0.251987] smpboot: Total of 4 processors activated (12799.68 BogoMIPS) <6>[ 0.254379] devtmpfs: initialized <6>[ 0.255345] x86/mm: Memory block size: 128MB <6>[ 0.259587] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns <6>[ 0.259999] futex hash table entries: 1024 (order: 5, 131072 bytes, linear) <6>[ 0.261121] pinctrl core: initialized pinctrl subsystem <6>[ 0.262714] PM: RTC time: 18:57:11, date: 2023-11-22 <6>[ 0.263646] NET: Registered protocol family 16 <6>[ 0.264803] audit: initializing netlink subsys (disabled) <5>[ 0.265035] audit: type=2000 audit(1700679431.029:1): state=initialized audit_enabled=0 res=1 <6>[ 0.265711] thermal_sys: Registered thermal governor 'step_wise' <6>[ 0.265793] thermal_sys: Registered thermal governor 'user_space' <6>[ 0.266078] cpuidle: using governor menu <6>[ 0.267143] ACPI: bus type PCI registered <6>[ 0.268033] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xe0000000-0xe3ffffff] (base 0xe0000000) <6>[ 0.268856] PCI: MMCONFIG at [mem 0xe0000000-0xe3ffffff] reserved in E820 <6>[ 0.269019] PCI: Using configuration type 1 for base access <6>[ 0.304930] Kprobes globally optimized <6>[ 0.305123] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages <6>[ 0.305998] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages <6>[ 0.306782] cryptomgr_test (38) used greatest stack depth: 14880 bytes left <6>[ 0.309350] ACPI: Added _OSI(Module Device) <6>[ 0.309988] ACPI: Added _OSI(Processor Device) <6>[ 0.310403] ACPI: Added _OSI(3.0 _SCP Extensions) <6>[ 0.310837] ACPI: Added _OSI(Processor Aggregator Device) <6>[ 0.310986] ACPI: Added _OSI(Linux-Dell-Video) <6>[ 0.311402] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) <6>[ 0.311887] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) <6>[ 0.323973] ACPI: 2 ACPI AML tables successfully acquired and loaded <6>[ 0.332195] ACPI: EC: EC started <6>[ 0.332530] ACPI: EC: interrupt blocked <6>[ 0.333634] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 <6>[ 0.333989] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC used to handle transactions <6>[ 0.334647] ACPI: Interpreter enabled <6>[ 0.335053] ACPI: (supports S0 S3 S4 S5) <6>[ 0.335426] ACPI: Using IOAPIC for interrupt routing <6>[ 0.335956] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug <6>[ 0.352710] ACPI: Power Resource [PRIC] (on) <6>[ 0.476058] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) <6>[ 0.476628] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] <6>[ 0.477277] acpi PNP0A08:00: _OSC: OS now controls [PME PCIeCapability LTR] <6>[ 0.477972] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge <6>[ 0.478598] PCI host bridge to bus 0000:00 <6>[ 0.478987] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] <6>[ 0.479596] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] <6>[ 0.479985] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] <6>[ 0.480651] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000c3fff window] <6>[ 0.480984] pci_bus 0000:00: root bus resource [mem 0x000c4000-0x000c7fff window] <6>[ 0.481650] pci_bus 0000:00: root bus resource [mem 0x000c8000-0x000cbfff window] <6>[ 0.481984] pci_bus 0000:00: root bus resource [mem 0x000cc000-0x000cffff window] <6>[ 0.482650] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000d3fff window] <6>[ 0.482984] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff window] <6>[ 0.483649] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff window] <6>[ 0.483984] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff window] <6>[ 0.484649] pci_bus 0000:00: root bus resource [mem 0x000e0000-0x000e3fff window] <6>[ 0.484984] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff window] <6>[ 0.485650] pci_bus 0000:00: root bus resource [mem 0x000e8000-0x000ebfff window] <6>[ 0.485984] pci_bus 0000:00: root bus resource [mem 0x000ec000-0x000effff window] <6>[ 0.486650] pci_bus 0000:00: root bus resource [mem 0x000f0000-0x000fffff window] <6>[ 0.486985] pci_bus 0000:00: root bus resource [mem 0x80000001-0xdfffffff window] <6>[ 0.487652] pci_bus 0000:00: root bus resource [mem 0x800000000-0xbffffffff window] <6>[ 0.487984] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window] <6>[ 0.488650] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed44fff window] <6>[ 0.488985] pci_bus 0000:00: root bus resource [bus 00-ff] <6>[ 0.489591] pci 0000:00:00.0: [8086:590c] type 00 class 0x060000 <6>[ 0.491051] pci 0000:00:02.0: [8086:591c] type 00 class 0x030000 <6>[ 0.491619] pci 0000:00:02.0: reg 0x10: [mem 0xd0000000-0xd0ffffff 64bit] <6>[ 0.491998] pci 0000:00:02.0: reg 0x18: [mem 0xc0000000-0xcfffffff 64bit pref] <6>[ 0.492651] pci 0000:00:02.0: reg 0x20: [io 0x1c00-0x1c3f] <6>[ 0.493623] pci 0000:00:04.0: [8086:1903] type 00 class 0x118000 <6>[ 0.494009] pci 0000:00:04.0: reg 0x10: [mem 0xd1120000-0xd1127fff 64bit] <6>[ 0.495381] pci 0000:00:08.0: [8086:1911] type 00 class 0x088000 <6>[ 0.495950] pci 0000:00:08.0: reg 0x10: [mem 0xd1130000-0xd1130fff 64bit] <6>[ 0.496647] pci 0000:00:14.0: [8086:9d2f] type 00 class 0x0c0330 <6>[ 0.497022] pci 0000:00:14.0: reg 0x10: [mem 0xd1100000-0xd110ffff 64bit] <6>[ 0.497772] pci 0000:00:14.0: PME# supported from D3hot D3cold <6>[ 0.498771] pci 0000:00:14.2: [8086:9d31] type 00 class 0x118000 <6>[ 0.499023] pci 0000:00:14.2: reg 0x10: [mem 0xd1131000-0xd1131fff 64bit] <6>[ 0.500319] pci 0000:00:15.0: [8086:9d60] type 00 class 0x118000 <6>[ 0.500899] pci 0000:00:15.0: reg 0x10: [mem 0xd1132000-0xd1132fff 64bit] <6>[ 0.501802] pci 0000:00:15.1: [8086:9d61] type 00 class 0x118000 <6>[ 0.502030] pci 0000:00:15.1: reg 0x10: [mem 0xd1133000-0xd1133fff 64bit] <6>[ 0.503494] pci 0000:00:19.0: [8086:9d66] type 00 class 0x118000 <6>[ 0.504030] pci 0000:00:19.0: reg 0x10: [mem 0xfe034000-0xfe034fff 64bit] <6>[ 0.504661] pci 0000:00:19.0: reg 0x18: [mem 0xd1135000-0xd1135fff 64bit] <6>[ 0.505772] pci 0000:00:19.1: [8086:9d65] type 00 class 0x118000 <6>[ 0.506030] pci 0000:00:19.1: reg 0x10: [mem 0xd1136000-0xd1136fff 64bit] <6>[ 0.507488] pci 0000:00:1c.0: [8086:9d10] type 01 class 0x060400 <6>[ 0.508185] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold <6>[ 0.509490] pci 0000:00:1e.0: [8086:9d27] type 00 class 0x118000 <6>[ 0.510030] pci 0000:00:1e.0: reg 0x10: [mem 0xd1137000-0xd1137fff 64bit] <6>[ 0.511449] pci 0000:00:1e.2: [8086:9d29] type 00 class 0x118000 <6>[ 0.512030] pci 0000:00:1e.2: reg 0x10: [mem 0xd1138000-0xd1138fff 64bit] <6>[ 0.513449] pci 0000:00:1e.4: [8086:9d2b] type 00 class 0x080501 <6>[ 0.514023] pci 0000:00:1e.4: reg 0x10: [mem 0xd1139000-0xd1139fff 64bit] <6>[ 0.515545] pci 0000:00:1e.6: [8086:9d2d] type 00 class 0x080501 <6>[ 0.516023] pci 0000:00:1e.6: reg 0x10: [mem 0xd113a000-0xd113afff 64bit] <6>[ 0.517410] pci 0000:00:1f.0: [8086:9d4b] type 00 class 0x060100 <6>[ 0.518730] pci 0000:00:1f.2: [8086:9d21] type 00 class 0x058000 <6>[ 0.519016] pci 0000:00:1f.2: reg 0x10: [mem 0xd1128000-0xd112bfff] <6>[ 0.520346] pci 0000:00:1f.3: [8086:9d71] type 00 class 0x040100 <6>[ 0.520924] pci 0000:00:1f.3: reg 0x10: [mem 0xd112c000-0xd112ffff 64bit] <6>[ 0.521050] pci 0000:00:1f.3: reg 0x20: [mem 0xd1110000-0xd111ffff 64bit] <6>[ 0.521760] pci 0000:00:1f.3: PME# supported from D3hot D3cold <6>[ 0.522741] pci 0000:00:1f.4: [8086:9d23] type 00 class 0x0c0500 <6>[ 0.523050] pci 0000:00:1f.4: reg 0x10: [mem 0xd113c000-0xd113c0ff 64bit] <6>[ 0.523727] pci 0000:00:1f.4: reg 0x20: [io 0xefa0-0xefbf] <6>[ 0.524712] pci 0000:00:1f.5: [8086:9d24] type 00 class 0x000000 <6>[ 0.525017] pci 0000:00:1f.5: reg 0x10: [mem 0xfe010000-0xfe010fff] <6>[ 0.526722] pci 0000:01:00.0: [8086:095a] type 00 class 0x028000 <6>[ 0.527371] pci 0000:01:00.0: reg 0x10: [mem 0xd1000000-0xd1001fff 64bit] <6>[ 0.528945] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold <6>[ 0.530731] pci 0000:00:1c.0: PCI bridge to [bus 01] <6>[ 0.531000] pci 0000:00:1c.0: bridge window [mem 0xd1000000-0xd10fffff] <6>[ 0.532939] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.533892] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 12 14 15) <6>[ 0.534257] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.535175] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.536097] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.537019] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.537939] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.538251] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.544693] ACPI: EC: interrupt unblocked <6>[ 0.544984] ACPI: EC: event unblocked <6>[ 0.545343] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 <6>[ 0.545811] ACPI: EC: GPE=0x6e <6>[ 0.545987] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC initialization complete <6>[ 0.546619] ACPI: \_SB_.PCI0.LPCB.EC0_: EC: Used to handle transactions and events <6>[ 0.547399] iommu: Default domain type: Translated <6>[ 0.548190] pci 0000:00:02.0: vgaarb: setting as boot VGA device <6>[ 0.548615] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none <6>[ 0.549013] pci 0000:00:02.0: vgaarb: bridge control possible <6>[ 0.549536] vgaarb: loaded <5>[ 0.550391] SCSI subsystem initialized <6>[ 0.551107] ACPI: bus type USB registered <6>[ 0.551611] usbcore: registered new interface driver usbfs <6>[ 0.552046] usbcore: registered new interface driver hub <6>[ 0.552568] usbcore: registered new device driver usb <6>[ 0.553095] mc: Linux media interface: v0.10 <6>[ 0.553522] videodev: Linux video capture interface: v2.00 <6>[ 0.554017] pps_core: LinuxPPS API ver. 1 registered <6>[ 0.554473] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <6>[ 0.554994] PTP clock support registered <6>[ 0.555423] Advanced Linux Sound Architecture Driver Initialized. <6>[ 0.556991] NetLabel: Initializing <6>[ 0.557320] NetLabel: domain hash size = 128 <6>[ 0.557724] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO <6>[ 0.558065] NetLabel: unlabeled traffic allowed by default <6>[ 0.558655] PCI: Using ACPI for IRQ routing <6>[ 0.566765] clocksource: Switched to clocksource tsc-early <5>[ 0.995417] VFS: Disk quotas dquot_6.6.0 <6>[ 0.995858] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) <6>[ 0.996918] pnp: PnP ACPI init <6>[ 0.998030] system 00:00: [mem 0xfed10000-0xfed17fff] has been reserved <6>[ 0.998650] system 00:00: [mem 0xfed18000-0xfed18fff] has been reserved <6>[ 0.999250] system 00:00: [mem 0xfed19000-0xfed19fff] has been reserved <6>[ 0.999861] system 00:00: [mem 0xe0000000-0xe3ffffff] has been reserved <6>[ 1.000472] system 00:00: [mem 0xfed20000-0xfed3ffff] has been reserved <6>[ 1.001071] system 00:00: [mem 0xfed90000-0xfed93fff] could not be reserved <6>[ 1.001712] system 00:00: [mem 0xfed45000-0xfed8ffff] could not be reserved <6>[ 1.002338] system 00:00: [mem 0xff000000-0xffffffff] has been reserved <6>[ 1.002948] system 00:00: [mem 0xfee00000-0xfeefffff] has been reserved <6>[ 1.003562] system 00:00: [mem 0xfed00000-0xfed003ff] has been reserved <6>[ 1.005065] system 00:01: [io 0x1800-0x18fe] has been reserved <6>[ 1.005996] system 00:03: [io 0x0900-0x09fe] has been reserved <6>[ 1.006801] system 00:04: [io 0x0200] has been reserved <6>[ 1.007291] system 00:04: [io 0x0204] has been reserved <6>[ 1.007795] system 00:04: [io 0x0800-0x087f] has been reserved <6>[ 1.008336] system 00:04: [io 0x0880-0x08ff] has been reserved <6>[ 1.011619] pnp: PnP ACPI: found 6 devices <6>[ 1.025920] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns <6>[ 1.026841] NET: Registered protocol family 2 <6>[ 1.027412] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear) <6>[ 1.029798] tcp_listen_portaddr_hash hash table entries: 2048 (order: 5, 163840 bytes, linear) <6>[ 1.030815] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear) <6>[ 1.031737] TCP bind hash table entries: 32768 (order: 9, 2359296 bytes, linear) <6>[ 1.034472] TCP: Hash tables configured (established 32768 bind 32768) <6>[ 1.035391] MPTCP token hash table entries: 4096 (order: 6, 360448 bytes, linear) <6>[ 1.036368] UDP hash table entries: 2048 (order: 6, 327680 bytes, linear) <6>[ 1.037277] UDP-Lite hash table entries: 2048 (order: 6, 327680 bytes, linear) <6>[ 1.038344] NET: Registered protocol family 1 <6>[ 1.039441] RPC: Registered named UNIX socket transport module. <6>[ 1.040026] RPC: Registered udp transport module. <6>[ 1.040472] RPC: Registered tcp transport module. <6>[ 1.040908] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 1.042108] NET: Registered protocol family 44 <6>[ 1.042561] pci 0000:00:1c.0: PCI bridge to [bus 01] <6>[ 1.043034] pci 0000:00:1c.0: bridge window [mem 0xd1000000-0xd10fffff] <6>[ 1.043671] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] <6>[ 1.044228] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] <6>[ 1.044858] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] <6>[ 1.045487] pci_bus 0000:00: resource 7 [mem 0x000c0000-0x000c3fff window] <6>[ 1.046105] pci_bus 0000:00: resource 8 [mem 0x000c4000-0x000c7fff window] <6>[ 1.046731] pci_bus 0000:00: resource 9 [mem 0x000c8000-0x000cbfff window] <6>[ 1.047348] pci_bus 0000:00: resource 10 [mem 0x000cc000-0x000cffff window] <6>[ 1.047979] pci_bus 0000:00: resource 11 [mem 0x000d0000-0x000d3fff window] <6>[ 1.048615] pci_bus 0000:00: resource 12 [mem 0x000d4000-0x000d7fff window] <6>[ 1.049238] pci_bus 0000:00: resource 13 [mem 0x000d8000-0x000dbfff window] <6>[ 1.049870] pci_bus 0000:00: resource 14 [mem 0x000dc000-0x000dffff window] <6>[ 1.050548] pci_bus 0000:00: resource 15 [mem 0x000e0000-0x000e3fff window] <6>[ 1.051171] pci_bus 0000:00: resource 16 [mem 0x000e4000-0x000e7fff window] <6>[ 1.051804] pci_bus 0000:00: resource 17 [mem 0x000e8000-0x000ebfff window] <6>[ 1.052429] pci_bus 0000:00: resource 18 [mem 0x000ec000-0x000effff window] <6>[ 1.053061] pci_bus 0000:00: resource 19 [mem 0x000f0000-0x000fffff window] <6>[ 1.053697] pci_bus 0000:00: resource 20 [mem 0x80000001-0xdfffffff window] <6>[ 1.054321] pci_bus 0000:00: resource 21 [mem 0x800000000-0xbffffffff window] <6>[ 1.054967] pci_bus 0000:00: resource 22 [mem 0xfd000000-0xfe7fffff window] <6>[ 1.055603] pci_bus 0000:00: resource 23 [mem 0xfed40000-0xfed44fff window] <6>[ 1.056228] pci_bus 0000:01: resource 1 [mem 0xd1000000-0xd10fffff] <6>[ 1.057251] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] <6>[ 1.059939] PCI: CLS 64 bytes, default 64 <6>[ 1.060714] Unpacking initramfs... <6>[ 1.475493] Freeing initrd memory: 10248K <6>[ 1.475998] DMAR: Host address width 39 <6>[ 1.476393] DMAR: DRHD base: 0x000000fed90000 flags: 0x0 <6>[ 1.476962] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e <6>[ 1.477778] DMAR: RMRR base: 0x0000007b800000 end: 0x0000007fffffff <6>[ 1.478346] DMAR: DRHD base: 0x000000fed91000 flags: 0x1 <6>[ 1.478859] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da <6>[ 1.479670] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) <6>[ 1.480253] software IO TLB: mapped [mem 0x0000000076998000-0x000000007a998000] (64MB) <6>[ 1.481198] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, 655360 ms ovfl timer <6>[ 1.481920] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules <6>[ 1.482442] RAPL PMU: hw unit of domain package 2^-14 Joules <6>[ 1.482968] RAPL PMU: hw unit of domain dram 2^-14 Joules <6>[ 1.483470] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules <6>[ 1.483984] RAPL PMU: hw unit of domain psys 2^-14 Joules <3>[ 1.486187] kvm: already loaded the other module <6>[ 1.498490] check: Scanning for low memory corruption every 60 seconds <5>[ 1.502261] Initialise system trusted keyrings <6>[ 1.502925] workingset: timestamp_bits=56 max_order=20 bucket_order=0 <5>[ 1.522593] NFS: Registering the id_resolver key type <5>[ 1.523102] Key type id_resolver registered <5>[ 1.523536] Key type id_legacy registered <5>[ 1.544506] Key type asymmetric registered <5>[ 1.544921] Asymmetric key parser 'x509' registered <6>[ 1.545423] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) <6>[ 1.546119] io scheduler mq-deadline registered <6>[ 1.546552] io scheduler kyber registered <4>[ 1.547155] test_firmware: interface ready <6>[ 1.549072] pcieport 0000:00:1c.0: PME: Signaling with IRQ 120 <6>[ 1.550912] ACPI: AC Adapter [AC] (on-line) <6>[ 1.551697] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/PNP0C09:00/PNP0C0D:00/input/input0 <6>[ 1.553494] ACPI: Lid Switch [LID0] <6>[ 1.554081] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1 <6>[ 1.554993] ACPI: Power Button [PWRF] <6>[ 1.555688] ACPI: \_PR_.CP00: Found 3 idle states <6>[ 1.556932] ACPI: \_PR_.CP01: Found 3 idle states <6>[ 1.557969] ACPI: \_PR_.CP02: Found 3 idle states <6>[ 1.558980] ACPI: \_PR_.CP03: Found 3 idle states <6>[ 1.560551] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled <4>[ 1.564574] hpet_acpi_add: no address or irqs in _CRS <6>[ 1.565080] battery: ACPI: Battery Slot [BAT0] (battery present) <6>[ 1.565287] Non-volatile memory driver v1.3 <6>[ 1.566213] Linux agpgart interface v0.103 <6>[ 1.567005] ACPI: bus type drm_connector registered <6>[ 1.567657] [drm] amdgpu kernel modesetting enabled. <6>[ 1.570751] i915 0000:00:02.0: vgaarb: deactivate vga console <6>[ 1.625265] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem <6>[ 1.627178] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4) <6>[ 1.654655] [drm] Initialized i915 1.6.0 20200917 for 0000:00:02.0 on minor 0 <6>[ 1.658429] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 1 <6>[ 1.674715] loop: module loaded <6>[ 1.675860] lkdtm: No crash points registered, enable through debugfs <6>[ 1.700919] printk: console [ttyS0] disabled <6>[ 1.701632] dw-apb-uart.2: ttyS0 at MMIO 0xfe034000 (irq = 32, base_baud = 115200) is a 16550A <6>[ 2.507701] tsc: Refined TSC clocksource calibration: 1608.000 MHz <6>[ 2.537771] printk: console [ttyS0] enabled <6>[ 2.546927] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x172daa3a18b, max_idle_ns: 440795212390 ns <6>[ 2.574610] dw-apb-uart.4: ttyS1 at MMIO 0xd1137000 (irq = 20, base_baud = 115200) is a 16550A <6>[ 5.335526] fbcon: i915drmfb (fb0) is primary device <6>[ 5.337042] clocksource: Switched to clocksource tsc <4>[ 5.337675] pxa2xx-spi pxa2xx-spi.5: no DMA channels available, using PIO <6>[ 5.345612] e100: Intel(R) PRO/100 Network Driver <6>[ 5.345618] e100: Copyright(c) 1999-2006 Intel Corporation <6>[ 5.345717] e1000: Intel(R) PRO/1000 Network Driver <6>[ 5.345721] e1000: Copyright (c) 1999-2006 Intel Corporation. <6>[ 5.345845] e1000e: Intel(R) PRO/1000 Network Driver <6>[ 5.345849] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. <6>[ 5.345944] igb: Intel(R) Gigabit Ethernet Network Driver <6>[ 5.345946] igb: Copyright (c) 2007-2014 Intel Corporation. <6>[ 5.346009] sky2: driver version 1.30 <6>[ 5.346321] usbcore: registered new interface driver r8152 <6>[ 5.346741] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver <6>[ 5.346762] ehci-pci: EHCI PCI platform driver <6>[ 5.346826] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver <6>[ 5.346841] ohci-pci: OHCI PCI platform driver <6>[ 5.346903] uhci_hcd: USB Universal Host Controller Interface driver <6>[ 5.348075] xhci_hcd 0000:00:14.0: xHCI Host Controller <6>[ 5.349827] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 <6>[ 5.350261] tpm_tis_spi spi-PRP0001:00: TPM ready IRQ confirmed on attempt 2 <6>[ 5.351264] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0000000081109810 <6>[ 5.351319] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported <6>[ 5.353434] xhci_hcd 0000:00:14.0: xHCI Host Controller <6>[ 5.353898] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 <6>[ 5.353914] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed <6>[ 5.354465] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10 <6>[ 5.354522] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 5.354528] usb usb1: Product: xHCI Host Controller <6>[ 5.354534] usb usb1: Manufacturer: Linux 5.10.201-cip40 xhci-hcd <6>[ 5.354539] usb usb1: SerialNumber: 0000:00:14.0 <6>[ 5.356432] hub 1-0:1.0: USB hub found <6>[ 5.356652] hub 1-0:1.0: 12 ports detected <6>[ 5.360649] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10 <6>[ 5.360654] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 5.360658] usb usb2: Product: xHCI Host Controller <6>[ 5.360661] usb usb2: Manufacturer: Linux 5.10.201-cip40 xhci-hcd <6>[ 5.360664] usb usb2: SerialNumber: 0000:00:14.0 <6>[ 5.361666] hub 2-0:1.0: USB hub found <6>[ 5.361717] hub 2-0:1.0: 6 ports detected <6>[ 5.363696] usbcore: registered new interface driver usblp <6>[ 5.363766] usbcore: registered new interface driver usb-storage <6>[ 5.364272] udc-core: couldn't find an available UDC - added [g_ether] to list of pending drivers <6>[ 5.364403] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1 <4>[ 5.364405] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp <4>[ 5.365163] i8042: Warning: Keylock active <6>[ 5.365445] serio: i8042 KBD port at 0x60,0x64 irq 1 <6>[ 5.368136] rtc_cmos 00:02: RTC can wake from S4 <6>[ 5.370518] rtc_cmos 00:02: registered as rtc0 <6>[ 5.371046] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 <6>[ 5.371837] rtc_cmos 00:02: alarms up to one month, 242 bytes nvram <6>[ 5.373132] i801_smbus 0000:00:1f.4: SPD Write Disable is set <6>[ 5.373183] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt <6>[ 5.373926] tpm_tis_spi spi-PRP0001:00: 2.0 TPM (device-id 0x28, rev-id 0) <6>[ 5.374089] i2c i2c-9: 2/2 memory slots populated (from DMI) <6>[ 5.376048] device-mapper: ioctl: 4.43.0-ioctl (2020-10-01) initialised: dm-devel@redhat.com <6>[ 5.376102] intel_pstate: Intel P-state driver initializing <6>[ 5.376162] Console: switching to colour frame buffer device 240x67 <6>[ 5.377064] intel_pstate: HWP enabled <6>[ 5.377102] sdhci: Secure Digital Host Controller Interface driver <6>[ 5.377103] sdhci: Copyright(c) Pierre Ossman <6>[ 5.377130] sdhci-pci 0000:00:1e.4: SDHCI controller found [8086:9d2b] (rev 21) <6>[ 5.378044] mmc0: SDHCI controller on PCI [0000:00:1e.4] using ADMA 64-bit <6>[ 5.378198] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.379821] hid: raw HID events driver (C) Jiri Kosina <6>[ 5.380496] usbcore: registered new interface driver usbhid <6>[ 5.380497] usbhid: USB HID core driver <6>[ 5.381176] input: Tablet Mode Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/PNP0C09:00/GOOG0006:00/input/input3 <6>[ 5.386379] cros_ec_lpcs GOOG0004:00: Chrome EC device registered <6>[ 5.390892] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device <6>[ 5.397726] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 <6>[ 5.591193] mmc0: new HS400 MMC card at address 0001 <6>[ 5.593692] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops) <6>[ 5.593807] ipip: IPv4 and MPLS over IPv4 tunneling driver <6>[ 5.594102] IPv4 over IPsec tunneling driver <6>[ 5.594355] Initializing XFRM netlink socket <6>[ 5.594727] NET: Registered protocol family 10 <6>[ 5.595589] Segment Routing with IPv6 <6>[ 5.596306] NET: Registered protocol family 17 <6>[ 5.596425] 8021q: 802.1Q VLAN Support v1.8 <5>[ 5.596469] Key type dns_resolver registered <6>[ 5.598396] usb 1-3: new full-speed USB device number 2 using xhci_hcd <6>[ 5.603504] microcode: sig=0x806e9, pf=0x10, revision=0x98 <6>[ 5.607449] microcode: Microcode Update Driver: v2.2. <6>[ 5.618311] mmcblk0: mmc0:0001 DA4064 58.2 GiB <6>[ 5.625343] IPI shorthand broadcast: enabled <6>[ 5.625407] sched_clock: Marking stable (5539867446, 85454235)->(5759233524, -133911843) <6>[ 5.631293] mmcblk0boot0: mmc0:0001 DA4064 partition 1 4.00 MiB <3>[ 5.644233] snd_hda_intel 0000:00:1f.3: Cannot probe codecs, giving up <6>[ 5.648443] mmcblk0boot1: mmc0:0001 DA4064 partition 2 4.00 MiB <6>[ 5.652634] registered taskstats version 1 <5>[ 5.652641] Loading compiled-in X.509 certificates <6>[ 5.655018] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.659971] mmcblk0rpmb: mmc0:0001 DA4064 partition 3 16.0 MiB, chardev (245:0) <6>[ 5.668304] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.699855] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 <6>[ 5.704075] PM: Magic number: 15:38:1000 <6>[ 5.712126] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.713054] rtc_cmos 00:02: hash matches <6>[ 5.774571] usb 1-3: New USB device found, idVendor=8087, idProduct=0a2a, bcdDevice= 0.03 <6>[ 5.786629] tpm_tis_spi spi-PRP0001:00: Cr50 firmware version: B2-C:0 RO_B:0.0.11/4d655eab RW_B:0.5.5/cr50_v1.9308_87_mp.479-d7 <6>[ 5.787219] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0 <6>[ 5.791714] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.887609] usb 2-3: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd <6>[ 5.891980] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.913394] usb 2-3: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=31.00 <6>[ 6.129108] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=6 <6>[ 6.129111] usb 2-3: Product: USB 10/100/1000 LAN <6>[ 6.137474] printk: console [netcon0] enabled <6>[ 6.142955] usb 2-3: Manufacturer: Realtek <6>[ 6.148140] netconsole: network logging started <6>[ 6.158372] usb 2-3: SerialNumber: 001000001 <6>[ 6.175250] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 6.217605] usb 1-9: new high-speed USB device number 3 using xhci_hcd <6>[ 6.389504] usb 1-9: New USB device found, idVendor=13d3, idProduct=56d4, bcdDevice=18.07 <6>[ 6.398988] usb 1-9: New USB device strings: Mfr=3, Product=1, SerialNumber=2 <6>[ 6.407282] usb 1-9: Product: USB2.0 HD UVC WebCam <6>[ 6.412953] usb 1-9: Manufacturer: Azurewave <6>[ 6.418040] usb 1-9: SerialNumber: 0x0001 <6>[ 6.428687] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 6.477380] usb 2-3: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd <6>[ 6.522137] r8152 2-3:1.0: load rtl8153b-2 v2 04/27/23 successfully <6>[ 6.558144] r8152 2-3:1.0 eth0: v1.11.11 <6>[ 6.563341] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 8.172723] r8152 2-3:1.0 eth0: carrier on <6>[ 8.174568] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready <5>[ 8.186599] Sending DHCP requests .., OK <6>[ 10.491295] IP-Config: Got DHCP answer from 192.168.201.1, my address is 192.168.201.18 <6>[ 10.500567] IP-Config: Complete: <6>[ 10.504491] device=eth0, hwaddr=00:e0:4c:68:0a:98, ipaddr=192.168.201.18, mask=255.255.255.0, gw=192.168.201.1 <6>[ 10.516465] host=asus-c433ta-aj0005-rammus-cbg-2, domain=lava-rack, nis-domain=(none) <6>[ 10.526008] bootserver=192.168.201.1, rootserver=192.168.201.1, rootpath= <6>[ 10.526011] nameserver0=192.168.201.1 <5>[ 10.539376] cfg80211: Loading compiled-in X.509 certificates for regulatory database <6>[ 10.551175] modprobe (103) used greatest stack depth: 14208 bytes left <5>[ 10.554104] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' <6>[ 10.558799] modprobe (104) used greatest stack depth: 14016 bytes left <4>[ 10.566662] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 <6>[ 10.567545] ALSA device list: <6>[ 10.567555] No soundcards found. <6>[ 10.591750] cfg80211: failed to load regulatory.db <4>[ 10.597638] dw-apb-uart dw-apb-uart.2: forbid DMA for kernel console <6>[ 10.607540] Freeing unused kernel image (initmem) memory: 2168K <6>[ 10.628734] Write protecting the kernel read-only data: 36864k <6>[ 10.636610] Freeing unused kernel image (text/rodata gap) memory: 2028K <6>[ 10.644728] Freeing unused kernel image (rodata/data gap) memory: 1316K <6>[ 10.652506] Run /init as init process Loading, please wait... Starting version 247.3-7+deb11u2 <6>[ 10.672287] systemd-udevd (125) used greatest stack depth: 13816 bytes left <6>[ 10.721618] udevadm (127) used greatest stack depth: 13688 bytes left <6>[ 10.843096] chromeos ramoops using acpi device. <6>[ 10.848943] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 10.859594] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 10.874594] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 10.881210] i2c_hid i2c-PNP0C50:00: supply vdd not found, using dummy regulator <4>[ 10.892123] cros-usbpd-notify-acpi GOOG0003:00: Couldn't get Chrome EC device pointer. <6>[ 10.901443] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 10.903643] i2c_hid i2c-PNP0C50:00: supply vddl not found, using dummy regulator <6>[ 10.921830] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 10.955994] Registered efivars operations <6>[ 10.960857] gsmi version 1.0 loaded <6>[ 10.965161] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.084993] 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>[ 11.103235] hid-generic 0018:0457:157E.0001: input,hidraw0: I2C HID v1.00 Device [PNP0C50:00 0457:157E] on i2c-PNP0C50:00 <6>[ 11.116208] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.141989] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.152016] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (13d3:56d4) <6>[ 11.154072] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.172738] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.184648] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.195355] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 11.196538] da7219 i2c-DLGS7219:00: Using default DAI clk names: da7219-dai-wclk, da7219-dai-bclk <6>[ 11.206692] 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>[ 11.217352] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.226522] usbcore: registered new interface driver uvcvideo <6>[ 11.236365] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.241411] USB Video Class driver (1.1.1) <6>[ 11.259332] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 11.269279] 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:68:0a:98 mtu 1500 DHCP IP-Config: eth0 complete (dhcp from 192.168.201.1): address: 192.168.201.18 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-2 domain : lava-rack rootserver: 192.168.201.1 rootpath: filename : <6>[ 11.425976] nfsmount (173) used greatest stack depth: 12544 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>[ 12.765521] 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>[ 12.803731] systemd[1]: Detected architecture x86-64. Welcome to Debian GNU/Linux 11 (bullseye)! <30>[ 12.830874] systemd[1]: Set hostname to . <30>[ 13.288663] systemd[1]: Queued start job for default target Graphical Interface. <30>[ 13.300145] systemd[1]: Created slice system-getty.slice. [ OK ] Created slice system-getty.slice. <30>[ 13.316070] systemd[1]: Created slice system-modprobe.slice. [ OK ] Created slice system-modprobe.slice. <30>[ 13.332083] systemd[1]: Created slice system-serial\x2dgetty.slice. [ OK ] Created slice system-serial\x2dgetty.slice. <30>[ 13.349049] systemd[1]: Created slice User and Session Slice. [ OK ] Created slice User and Session Slice. <30>[ 13.365987] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ OK ] Started Dispatch Password …ts to Console Directory Watch. <30>[ 13.387959] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ OK ] Started Forward Password R…uests to Wall Directory Watch. <30>[ 13.407636] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ OK ] Set up automount Arbitrary…s File System Automount Point. <30>[ 13.430818] systemd[1]: Reached target Local Encrypted Volumes. [ OK ] Reached target Local Encrypted Volumes. <30>[ 13.447842] systemd[1]: Reached target Paths. [ OK ] Reached target Paths. <30>[ 13.461786] systemd[1]: Reached target Remote File Systems. [ OK ] Reached target Remote File Systems. <30>[ 13.477807] systemd[1]: Reached target Slices. [ OK ] Reached target Slices. <30>[ 13.491801] systemd[1]: Reached target Swap. [ OK ] Reached target Swap. <30>[ 13.503021] systemd[1]: Listening on initctl Compatibility Named Pipe. [ OK ] Listening on initctl Compatibility Named Pipe. <30>[ 13.520531] systemd[1]: Listening on Journal Audit Socket. [ OK ] Listening on Journal Audit Socket. <30>[ 13.537602] systemd[1]: Listening on Journal Socket (/dev/log). [ OK ] Listening on Journal Socket (/dev/log). <30>[ 13.554124] systemd[1]: Listening on Journal Socket. [ OK ] Listening on Journal Socket. <30>[ 13.569581] systemd[1]: Listening on Network Service Netlink Socket. [ OK ] Listening on Network Service Netlink Socket. <30>[ 13.588614] systemd[1]: Listening on udev Control Socket. [ OK ] Listening on udev Control Socket. <30>[ 13.605113] systemd[1]: Listening on udev Kernel Socket. [ OK ] Listening on udev Kernel Socket. <30>[ 13.622506] systemd[1]: Mounting Huge Pages File System... Mounting Huge Pages File System... <30>[ 13.638950] systemd[1]: Mounting POSIX Message Queue File System... Mounting POSIX Message Queue File System... <30>[ 13.657035] systemd[1]: Mounting Kernel Debug File System... Mounting Kernel Debug File System... <30>[ 13.673981] systemd[1]: Mounting Kernel Trace File System... Mounting Kernel Trace File System... <30>[ 13.691808] systemd[1]: Starting Create list of static device nodes for the current kernel... Starting Create list of st…odes for the current kernel... <30>[ 13.713208] systemd[1]: Starting Load Kernel Module configfs... Starting Load Kernel Module configfs... <30>[ 13.730197] systemd[1]: Starting Load Kernel Module drm... Starting Load Kernel Module drm... <30>[ 13.746234] systemd[1]: Starting Load Kernel Module fuse... Starting Load Kernel Module fuse... <30>[ 13.783543] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped. <6>[ 13.794312] fuse: init (API version 7.32) <30>[ 13.800523] systemd[1]: Starting Journal Service... Starting Journal Service... <30>[ 13.816201] systemd[1]: Starting Load Kernel Modules... Starting Load Kernel Modules... <30>[ 13.830159] systemd[1]: Starting Remount Root and Kernel File Systems... Starting Remount Root and Kernel File Systems... <30>[ 13.847890] systemd[1]: Starting Coldplug All udev Devices... Starting Coldplug All udev Devices... <30>[ 13.866590] systemd[1]: Mounted Huge Pages File System. [ OK ] Mounted Huge Pages File System. <30>[ 13.881799] systemd[1]: Mounted POSIX Message Queue File System. [ OK ] Mounted POSIX Message Queue File System. <30>[ 13.898776] systemd[1]: Mounted Kernel Debug File System. [ OK ] Mounted Kernel Debug File System. <30>[ 13.914730] systemd[1]: Mounted Kernel Trace File System. [ OK ] Mounted Kernel Trace File System. <30>[ 13.931687] 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>[ 13.955343] systemd[1]: modprobe@configfs.service: Succeeded. <30>[ 13.962658] systemd[1]: Finished Load Kernel Module configfs. [ OK ] Finished Load Kernel Module configfs. <30>[ 13.979441] systemd[1]: modprobe@drm.service: Succeeded. <30>[ 13.986430] systemd[1]: Finished Load Kernel Module drm. [ OK ] Finished Load Kernel Module drm. <30>[ 14.001906] systemd[1]: Started Journal Service. [ OK ] Started Journal Service. [ OK ] Finished Load Kernel Module fuse. [ 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... <46>[ 14.104163] systemd-journald[208]: Received client request to flush runtime journal. Starting Create System Users... [ 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>[ 15.616925] systemd-tmpfile (220) used greatest stack depth: 12384 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 ] Finished Update UTMP about System Boot/Shutdown. [ OK ] Found device Sunrise Point-LP Serial IO UART Controller. [ 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 Service. Starting Network Name Resolution... [ 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 ] Finished Remove Stale Onli…ext4 Metadata Check Snapshots. [ OK ] Started Network Name Resolution. [ OK ] Reached target Network. [ OK ] Reached target Host and Network Name Lookups. Starting Permit User Sessions... [ OK ] Started User Login Management. [ 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 5.10.201-cip40 #1 SMP Wed Nov 22 18:39:14 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/12061625/extract-nfsrootfs-qzvt7rly' export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/12061625/extract-nfsrootfs-qzvt7rly' / # 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-12061625/environment . /lava-12061625/environment / # /lava-12061625/bin/lava-test-runner /lava-12061625/0 /lava-12061625/bin/lava-test-runner /lava-12061625/0 + export TESTRUN_ID=0_timesync-off + TESTRUN_ID=0_timesync-off + cd /lava-12061625/0/tests/0_timesync-off ++ cat uuid + UUID=12061625_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-12061625/0/tests/1_kselftest-lkdtm ++ cat uuid + UUID=12061625_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/v5.10.200-cip40-188-g33d0b44cd71d/x86_64/x86_64_defconfig+x86-board+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 --2023-11-22 18:57:30-- http://storage.kernelci.org/cip-gitlab/ci-iwamatsu-linux-5.10.y-cip-rc/v5.10.200-cip40-188-g33d0b44cd71d/x86_64/x86_64_defconfig+x86-board+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: 3376992 (3.2M) [application/octet-stream] Saving to: 'kselftest.tar.xz' kselftest.tar.xz 0%[ ] 0 --.-KB/s kselftest.tar.xz 1%[ ] 47.81K 187KB/s kselftest.tar.xz 6%[> ] 219.84K 429KB/s kselftest.tar.xz 25%[====> ] 849.58K 829KB/s kselftest.tar.xz 77%[==============> ] 2.48M 1.93MB/s kselftest.tar.xz 100%[===================>] 3.22M 2.45MB/s in 1.3s 2023-11-22 18:57:32 (2.45 MB/s) - 'kselftest.tar.xz' saved [3376992/3376992] 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_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 =============== shardfile-lkdtm pass <12>[ 30.235491] kselftest: Running tests in lkdtm 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>[ 30.713554] lkdtm: Performing direct entry BUG <4>[ 30.718915] ------------[ cut here ]------------ <2>[ 30.724380] kernel BUG at drivers/misc/lkdtm/bugs.c:76! <4>[ 30.730549] invalid opcode: 0000 [#1] SMP PTI <4>[ 30.735713] CPU: 1 PID: 641 Comm: cat Tainted: G W 5.10.201-cip40 #1 <4>[ 30.744555] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 30.751654] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 30.756326] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 30.777601] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 30.783716] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 30.791978] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 30.800231] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 30.808491] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 30.816753] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 30.825016] FS: 00007f80fa029580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 30.834336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 30.841044] CR2: 00007f80f9e33000 CR3: 000000010381e004 CR4: 00000000003706e0 <4>[ 30.849296] Call Trace: <4>[ 30.852315] ? __die_body.cold+0x1a/0x1f <4>[ 30.856992] ? die+0x2b/0x50 <4>[ 30.860497] ? do_trap+0x91/0x110 <4>[ 30.864486] ? lkdtm_BUG+0x5/0x10 <4>[ 30.868475] ? do_error_trap+0x90/0x110 <4>[ 30.873036] ? lkdtm_BUG+0x5/0x10 <4>[ 30.877016] ? lkdtm_BUG+0x5/0x10 <4>[ 30.881007] ? exc_invalid_op+0x4e/0x70 <4>[ 30.885576] ? lkdtm_BUG+0x5/0x10 <4>[ 30.889564] ? asm_exc_invalid_op+0x12/0x20 <4>[ 30.894525] ? direct_entry+0xe0/0xe0 <4>[ 30.898904] ? lkdtm_BUG+0x5/0x10 <4>[ 30.902894] direct_entry.cold+0x2c/0x38 <4>[ 30.907564] full_proxy_write+0x53/0x80 <4>[ 30.912137] vfs_write+0xe7/0x3b0 <4>[ 30.916126] ksys_write+0x68/0xf0 <4>[ 30.920118] do_syscall_64+0x30/0x40 <4>[ 30.924398] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 30.930327] RIP: 0033:0x7f80f9f3f473 <4>[ 30.934608] 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>[ 30.955881] RSP: 002b:00007fff17b74b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 30.964649] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f80f9f3f473 <4>[ 30.972910] RDX: 0000000000000004 RSI: 00007f80f9e33000 RDI: 0000000000000001 <4>[ 30.981169] RBP: 00007f80f9e33000 R08: 00007f80f9e32010 R09: 0000000000000000 <4>[ 30.989429] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 30.997689] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 31.005953] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 31.060638] gsmi: Log Shutdown Reason 0x03 <4>[ 31.065515] ---[ end trace fd88bdcc3c2da47d ]--- <4>[ 31.070994] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 31.075674] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 31.096960] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 31.103098] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 31.111367] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 31.119651] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 31.127925] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 31.136196] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 31.144473] FS: 00007f80fa029580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 31.153821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 31.160545] CR2: 00007f80f9e33000 CR3: 000000010381e004 CR4: 00000000003706e0 # Segmentation fault # [ 30.713554] lkdtm: Performing direct entry BUG # [ 30.718915] ------------[ cut here ]------------ # [ 30.724380] kernel BUG at drivers/misc/lkdtm/bugs.c:76! # [ 30.730549] invalid opcode: 0000 [#1] SMP PTI # [ 30.735713] CPU: 1 PID: 641 Comm: cat Tainted: G W 5.10.201-cip40 #1 # [ 30.744555] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 30.751654] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 30.756326] Code: 89 ff e8 2e db 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 60 <6>[ 31.244718] lkdtm: Performing direct entry WARNING <4>[ 31.250913] ------------[ cut here ]------------ 66 0b 03 # [ 30.777601] RSP: 0018:ffffb8330138fe60 EFLAGS: 00<4>[ 31.256370] WARNING: CPU: 3 PID: 679 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x13/0x20 010286 # [ 30.783716] RAX: ffffffffb2b7b650 RBX: 000000000000<4>[ 31.272295] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 31.331290] CPU: 3 PID: 679 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 31.340168] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 31.347267] RIP: 0010:lkdtm_WARNING+0x13/0x20 <4>[ 31.352424] 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 60 66 0b 03 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 41 66 <4>[ 31.373703] RSP: 0018:ffffb83301427e60 EFLAGS: 00010202 0001 RCX: 0000000000000000 # [ 30.791978] RDX: 00000000000000<4>[ 31.379858] RAX: ffffffffb2b7b660 RBX: 0000000000000002 RCX: 0000000000000000 <4>[ 31.394340] RDX: 0000000000000000 RSI: ffff95e53ad9bf50 RDI: ffffffffb3cf80c0 <4>[ 31.402632] RBP: ffffffffb4181faf R08: 0000000000000000 R09: 0000000000000000 <4>[ 31.410896] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000008 <4>[ 31.419158] R13: ffffb83301427f10 R14: ffffb83301427f10 R15: ffff95e4c6d82000 <4>[ 31.427421] FS: 00007f94e1796580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 31.436753] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 31.443463] CR2: 00007f94e15a0000 CR3: 0000000103ff6001 CR4: 00000000003706e0 <4>[ 31.451727] Call Trace: <4>[ 31.454751] ? __warn+0x80/0x110 00 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 30.800231]<4>[ 31.458672] ? lkdtm_WARNING+0x13/0x20 <4>[ 31.469358] ? report_bug+0x9e/0xc0 <4>[ 31.473545] ? handle_bug+0x41/0x90 <4>[ 31.477731] ? exc_invalid_op+0x14/0x70 <4>[ 31.482305] ? asm_exc_invalid_op+0x12/0x20 <4>[ 31.487268] ? lkdtm_BUG+0x10/0x10 <4>[ 31.491356] ? lkdtm_WARNING+0x13/0x20 <4>[ 31.495833] direct_entry.cold+0x2c/0x38 <4>[ 31.500505] full_proxy_write+0x53/0x80 <4>[ 31.505105] vfs_write+0xe7/0x3b0 <4>[ 31.509119] ksys_write+0x68/0xf0 <4>[ 31.513111] do_syscall_64+0x30/0x40 <4>[ 31.517393] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 31.523328] RIP: 0033:0x7f94e16ac473 <4>[ 31.527610] 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>[ 31.548889] RSP: 002b:00007ffc966da188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 31.557639] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f94e16ac473 <4>[ 31.565902] RDX: 0000000000000008 RSI: 00007f94e15a0000 RDI: 0000000000000001 <4>[ 31.574164] RBP: 00007f94e15a0000 R08: 00007f94e159f010 R09: 0000000000000000 <4>[ 31.582436] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 00000000000000<4>[ 31.590708] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 31.605186] irq event stamp: 0 <4>[ 31.608909] hardirqs last enabled at (0): [<0000000000000000>] 0x0 01 # [ 30.808491] R10: 00000000ffffe000 R11: 3fffffffffffffff<4>[ 31.616220] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 31.631867] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 31.641296] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 31.648588] ---[ end trace fd88bdcc3c2da47e ]--- R12: 0000000000000004 # [ 30.816753] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 30.825016] FS: 00007f80fa029580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 30.834336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 30.841044] CR2: 00007f80f9e33000 CR3: 000000010381e004 CR4: 00000000003706e0 # [ 30.849296] Call Trace: # [ 30.852315] ? __die_body.cold+0x1a/0x1f # [ 30.856992] ? die+0x2b/0x50 # [ 30.860497] ? do_trap+0x91/0x110 # [ 30.864486] ? lkdtm_BUG+0x5/0x10 # [ 30.868475] ? do_error_trap+0x90/0x110 # [ 30.873036] ? lkdtm_BUG+0x5/0x10 # [ 30.877016] ? lkdtm_BUG+0x5/0x10 # [ 30.881007] ? exc_invalid_op+0x4e/0x70 # [ 30.885576] ? lkdtm_BUG+0x5/0x10 # [ 30.889564] ? asm_exc_invalid_op+0x12/0x20 # [ 30.894525] ? direct_entry+0xe0/0xe0 # [ 30.898904] ? lkdtm_BUG+0x5/0x10 # [<6>[ 31.740532] lkdtm: Performing direct entry WARNING_MESSAGE 30.902894] direct_entry.cold+0x2c/0x38 # [ 30.907564] fu<4>[ 31.747458] ------------[ cut here ]------------ ll_proxy_write+0x53/0x80 # [ 30.912137] vfs_write+0xe7/0x3b0<4>[ 31.759124] Warning message trigger count: 2 # [ 30.916126] ksys_write+0x68/0xf0 # [ 30.920118] do_s<4>[ 31.770442] WARNING: CPU: 1 PID: 715 at drivers/misc/lkdtm/bugs.c:88 lkdtm_WARNING_MESSAGE+0x20/0x30 yscall_64+0x30/0x40 # [ 30.924398] entry_SYSCALL_64_after_hw<4>[ 31.787114] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 frame+0x62/0xc7 # [ 30.930327] RIP: 0033:0x7f80f9f3f473 # [ <4>[ 31.846080] CPU: 1 PID: 715 Comm: cat Tainted: G D W 5.10.201-cip40 #1 30.934608] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff <4>[ 31.861141] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 0<4>[ 31.874467] RIP: 0010:lkdtm_WARNING_MESSAGE+0x20/0x30 1 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 <4>[ 31.886614] Code: cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 41 66 0b 03 48 c7 c7 10 25 18 b4 8d 70 01 89 35 31 66 0b 03 e8 4a b0 69 00 <0f> 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 c7 ec 28 48 89 54 24 18 # [ 30.955881] RSP: 002b:00007fff17b74b7<4>[ 31.914111] RSP: 0018:ffffb833014b7e60 EFLAGS: 00010286 8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 30.964649] <4>[ 31.926455] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f80f9f3f47<4>[ 31.940936] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 31.955412] RBP: ffffffffb4181fb7 R08: 0000000000000000 R09: 0000000000000000 3 # [ 30.972910] RDX: 0000000000000004 RSI: 00007f80f9e33000 <4>[ 31.963677] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000010 RDI: 0000000000000001 # [ 30.981169] RBP: 00007f80f9e33000 R0<4>[ 31.978153] R13: ffffb833014b7f10 R14: ffffb833014b7f10 R15: ffff95e4c38db000 8: 00007f80f9e32010 R09: 0000000000000000 # [ 30.989429] R10:<4>[ 31.992657] FS: 00007f1c5c8f0580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 32.008180] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.014892] CR2: 00007f1c5c6fa000 CR3: 0000000104456005 CR4: 00000000003706e0 fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 #<4>[ 32.023157] Call Trace: [ 30.997689] R13: 0000000000000001 R14: 0000000000020000 R15:<4>[ 32.032391] ? __warn+0x80/0x110 0000000000020000 # [ 31.005953] Modules linked in: fuse ip_t<4>[ 32.042498] ? lkdtm_WARNING_MESSAGE+0x20/0x30 ables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core ind<4>[ 32.053969] ? report_bug+0x9e/0xc0 ustrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219<4>[ 32.064372] ? handle_bug+0x41/0x90 <4>[ 32.074770] ? exc_invalid_op+0x14/0x70 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightba<4>[ 32.079345] ? asm_exc_invalid_op+0x12/0x20 r cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo <4>[ 32.090521] ? lkdtm_WARNING_MESSAGE+0x20/0x30 snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress vid<4>[ 32.101988] direct_entry.cold+0x2c/0x38 eobuf2_v4l2 gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaeng<4>[ 32.112877] full_proxy_write+0x53/0x80 ine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid corebo<4>[ 32.123668] vfs_write+0xe7/0x3b0 ot_table chromeos_pstore cros_kbd_led_backlight # [ 31.060638<4>[ 32.133878] ksys_write+0x68/0xf0 ] gsmi: Log Shutdown Reason 0x03 # [ 31.065515] ---[ end trac<4>[ 32.144085] do_syscall_64+0x30/0x40 <4>[ 32.154585] entry_SYSCALL_64_after_hwframe+0x62/0xc7 e fd88bdcc3c2da47d ]--- # [ 31.070994] RIP: 0010:lkdtm_BUG+0x<4>[ 32.160520] RIP: 0033:0x7f1c5c806473 <4>[ 32.171012] 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 5/0x10 # [ 31.075674] Code: 89 ff e8 2e db 79 ff 48 c7 c0 ea <4>[ 32.192291] RSP: 002b:00007ffec0d6b5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 f<4>[ 32.207255] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007f1c5c806473 <4>[ 32.221735] RDX: 0000000000000010 RSI: 00007f1c5c6fa000 RDI: 0000000000000001 f ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 <4>[ 32.229999] RBP: 00007f1c5c6fa000 R08: 00007f1c5c6f9010 R09: 0000000000000000 <4>[ 32.244473] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 0f 1f 44 00 00 83 05 60 66 0b 03 # [ 31.096960] RSP: 0018:fff<4>[ 32.252739] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 fb8330138fe60 EFLAGS: 00010286 # [ 31.103098] RAX: ffffffffb2<4>[ 32.267217] irq event stamp: 0 <4>[ 32.277130] hardirqs last enabled at (0): [<0000000000000000>] 0x0 b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 31.111<4>[ 32.284426] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 367] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3<4>[ 32.300064] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 32.315710] softirqs last disabled at (0): [<0000000000000000>] 0x0 cf80b0 # [ 31.119651] RBP: ffffffffb41e8318 R08: 000000000000<4>[ 32.323004] ---[ end trace fd88bdcc3c2da47f ]--- 0001 R09: 0000000000000001 # [ 31.127925] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 31.136196] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 31.144473] FS: 00007f80fa029580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 31.153821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.160545] CR2: 00007f80f9e33000 CR3: 000000010381e004 CR4: 00000000003706e0 # BUG: saw 'kernel BUG at': ok ok 2 selftests: lkdtm: BUG.sh # selftests: lkdtm: WARNING.sh # [ 31.244718] lkdtm: Performing direct entry WARNING # [ 31.250913] ------------[ cut here ]------------ # [ 31.256370] WARNING: CPU: 3 PID: 679 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x13/0x20 # [ 31.272295] Mo<6>[ 32.407973] lkdtm: Performing direct entry EXCEPTION <1>[ 32.415101] BUG: kernel NULL pointer dereference, address: 0000000000000000 dules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensor<1>[ 32.423176] #PF: supervisor write access in kernel mode <1>[ 32.435514] #PF: error_code(0x0002) - not-present page <6>[ 32.441541] PGD 0 P4D 0 <4>[ 32.444648] Oops: 0002 [#2] SMP PTI <4>[ 32.448829] CPU: 3 PID: 748 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 32.457673] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 32.464769] RIP: 0010:lkdtm_EXCEPTION+0x5/0x20 <4>[ 32.470010] Code: 48 c7 c7 10 25 18 b4 8d 70 01 89 35 31 66 0b 03 e8 4a b0 69 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>[ 32.491284] RSP: 0018:ffffb8330152fe60 EFLAGS: 00010282 <4>[ 32.497409] RAX: ffffffffb2b7b6b0 RBX: 0000000000000004 RCX: 0000000000000000 <4>[ 32.505669] RDX: 0000000000000000 RSI: ffff95e53ad9bf50 RDI: ffffffffb3cf80e0 <4>[ 32.513928] RBP: ffffffffb4075caf R08: 0000000000000000 R09: 0000000000000000 <4>[ 32.522189] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 32.530450] R13: ffffb8330152ff10 R14: ffffb8330152ff10 R15: ffff95e4c3834000 <4>[ 32.538711] FS: 00007fd5316f3580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 32.548038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.554745] CR2: 0000000000000000 CR3: 000000010264c002 CR4: 00000000003706e0 <4>[ 32.563003] Call Trace: <4>[ 32.566025] ? __die_body.cold+0x1a/0x1f <4>[ 32.570694] ? no_context+0x177/0x380 <4>[ 32.575074] ? exc_page_fault+0x53/0x170 <4>[ 32.579744] ? asm_exc_page_fault+0x1e/0x30 <4>[ 32.584705] ? lkdtm_WARNING_MESSAGE+0x30/0x30 <4>[ 32.589954] ? lkdtm_EXCEPTION+0x5/0x20 <4>[ 32.594525] direct_entry.cold+0x2c/0x38 <4>[ 32.599194] full_proxy_write+0x53/0x80 <4>[ 32.603758] vfs_write+0xe7/0x3b0 <4>[ 32.607746] ksys_write+0x68/0xf0 <4>[ 32.611734] do_syscall_64+0x30/0x40 <4>[ 32.616014] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 32.621954] RIP: 0033:0x7fd531609473 <4>[ 32.626232] 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 s cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf i<4>[ 32.647511] RSP: 002b:00007ffc27102ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 32.662473] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fd531609473 <4>[ 32.670745] RDX: 000000000000000a RSI: 00007fd5314fd000 RDI: 0000000000000001 <4>[ 32.679007] RBP: 00007fd5314fd000 R08: 00007fd5314fc010 R09: 0000000000000000 <4>[ 32.687258] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 32.695517] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ndustrialio snd_soc_da7219 cros_usbpd_logger cros_ec_sysfs cros_<4>[ 32.703784] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 32.762772] CR2: 0000000000000000 <4>[ 32.766760] ---[ end trace fd88bdcc3c2da480 ]--- <4>[ 32.772208] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 32.776876] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 32.798142] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 32.804267] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 32.812525] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 32.820787] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 32.829046] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 32.837306] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 32.845565] FS: 00007fd5316f3580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 32.854894] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.861600] CR2: 0000000000000000 CR3: 000000010264c002 CR4: 00000000003706e0 <3>[ 32.869862] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 32.880067] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 748, name: cat <4>[ 32.888718] INFO: lockdep is turned off. <4>[ 32.893385] irq event stamp: 0 <4>[ 32.897082] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 32.904373] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 32.913800] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 32.923217] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 32.930508] CPU: 3 PID: 748 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 32.939343] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 32.946437] Call Trace: <4>[ 32.949457] dump_stack+0x77/0x9b <4>[ 32.953446] ___might_sleep.cold+0xa6/0xb6 <4>[ 32.958309] exit_signals+0x1c/0x300 <4>[ 32.962580] do_exit+0xc2/0xab0 <4>[ 32.966375] ? ksys_write+0x68/0xf0 <4>[ 32.970559] make_task_dead+0x2f/0x30 <4>[ 32.974950] rewind_stack_and_make_dead+0x17/0x20 <4>[ 32.980493] RIP: 0033:0x7fd531609473 <4>[ 32.984764] 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>[ 33.006039] RSP: 002b:00007ffc27102ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 33.014778] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fd531609473 <4>[ 33.023038] RDX: 000000000000000a RSI: 00007fd5314fd000 RDI: 0000000000000001 <4>[ 33.031298] RBP: 00007fd5314fd000 R08: 00007fd5314fc010 R09: 0000000000000000 <4>[ 33.039559] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 33.047818] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 31.331290] CPU: 3 PID: 679 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 31.340168] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 31.347267] RIP: 0010:lkdtm_WARNING+0x13/0x20 # [ 31.352424] 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 60 66 0b 03 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 41 66 # [ 31.373703] RSP: 0018:ffffb83301427e60 EFLAGS: 00010202 # [ 31.379858] RAX: ffffffffb2b7b660 RBX: 0000000000000002 RCX: 0000000000000000 # [ 31.394340] RDX: 0000000000000000 RSI: ffff95e53ad9bf50 RDI: ffffffffb3cf80c0 # [ 31.402632] RBP: ffffffffb4181faf R08: 0000000000000000 R09: 0000000000000000 # [ 31.410896] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000008 # [ 31.419158] R13: ffffb83301427f10 R14: ffffb83301427f10 R15: ffff95e4c6d82000 # [ 31.427421] FS: 00007f94e1796580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 31.436753] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.443463] CR2: 00007f94e15a0000 CR3: 0000000103ff6001 CR4: 00000000003706e0 # [ 31.451727] Call Trace: # [ 31.454751] ? __warn+0x80/0x110 # [ 31.458672] ? lkdtm_WARNING+0x13/0x20 # [ 31.469358] ? report_bug+0x9e/0xc0 # [ 31.473545] ? handle_bug+0x41/0x90 # [ 31.477731] ? exc_invalid_op+0x14/0x70 # [ 31.482305] ? asm_exc_invalid_op+0x12/0x20 # [ 31.487268] ? lkdtm_BUG+0x10/0x10 # [ 31.491356] ? lkdtm_WARNING+0x13/0x20 # [ 31.495833] direct_entry.cold+0x2c/0x38 # [ 31.500505] full_proxy_write+0x53/0x80 # [ 31.505105] vfs_write+0xe7/0x3b0 # [ 31.509119] ksys_write+0x68/0xf0 # [ 31.513111] do_syscall_64+0x30/0x40 # [ 31.517393] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 31.523328] RIP: 0033:0x7f94e16ac473 # [ 31.527610] 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 # [ 31.548889] RSP: 002b:00007ffc966da188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 31.557639] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f94e16ac473 # [ 31.565902] RDX: 0000000000000008 RSI: 00007f94e15a0000 RDI: 0000000000000001 # [ 31.574164] RBP: 00007f94e15a0000 R08: 00007f94e159f010 R09: 0000000000000000 # [ 31.582436] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 31.590708] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 31.605186] irq event stamp: 0 # [ 31.608909] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 31.616220] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 31.63<6>[ 33.356210] lkdtm: Performing direct entry CORRUPT_LIST_ADD 1867] softirqs last enabled at (0): [] copy_p<6>[ 33.367195] lkdtm: attempting good list addition rocess+0x65c/0x20e0 # [ 31.641296] softirqs last disabled at <6>[ 33.378877] lkdtm: attempting corrupted list addition (0): [<0000000000000000>] 0x0 # [ 31.648588] ---[ end trace f<3>[ 33.391021] lkdtm: list_add() corruption not detected! d88bdcc3c2da47e ]--- # WARNING: saw 'WARNING:': ok ok 3 selftests: lkdtm: WARNING.sh # selftests: lkdtm: WARNING_MESSAGE.sh # [ 31.740532] lkdtm: Performing direct entry WARNING_MESSAGE # [ 31.747458] ------------[ cut here ]------------ # [ 31.759124] Warning message trigger count: 2 # [ 31.770442] WARNING: CPU: 1 PID: 715 at drivers/misc/lkdtm/bugs.c:88 lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 31.787114] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress <6>[ 33.475766] lkdtm: Performing direct entry CORRUPT_LIST_DEL videobuf2_v4l2 gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dma<6>[ 33.484363] lkdtm: attempting good list removal engine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hid cor<6>[ 33.495950] lkdtm: attempting corrupted list removal eboot_table chromeos_pstore cros_kbd_led_backlight # [ 31.846<3>[ 33.508003] lkdtm: list_del() corruption not detected! 080] CPU: 1 PID: 715 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 31.861141] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 31.874467] RIP: 0010:lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 31.886614] Code: cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 41 66 0b 03 48 c7 c7 10 25 18 b4 8d 70 01 89 35 31 66 0b 03 e8 4a b0 69 00 <0f> 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 c7 # [ 31.914111] RSP: 0018:ffffb833014b7e60 EFLAGS: 00010286 # [ 31.926455] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 # [ 31.940936] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 31.955412] RBP: ffffffffb4181fb7 R08: 0000000000000000 R09: 0000000000000000 # [ 31.963677] R10: 0000<6>[ 33.592690] lkdtm: Performing direct entry STACK_GUARD_PAGE_LEADING <6>[ 33.602106] lkdtm: attempting bad read from page below current stack <0>[ 33.609503] BUG: stack guard page was hit at 000000008e1bccbf (stack is 000000002132ce8c..00000000ed5f7bf3) <4>[ 33.620684] kernel stack overflow (page fault): 0000 [#3] SMP PTI 0000ffffe000 R11: 3fffffffffffffff R12: 0000000000000010 # [ <4>[ 33.627781] CPU: 2 PID: 981 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 33.642837] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 33.649925] RIP: 0010:lkdtm_STACK_GUARD_PAGE_LEADING+0x27/0x3a <4>[ 33.656729] Code: cc cc cc 0f 1f 44 00 00 53 48 c7 c7 b0 28 18 b4 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 0a df fb ff 48 c7 c7 f0 28 18 b4 <8a> 43 ff 88 44 24 07 0f b6 74 24 07 5a 5b e9 f0 de fb ff 0f 1f 44 <4>[ 33.678001] RSP: 0018:ffffb8330186fe50 EFLAGS: 00010246 <4>[ 33.684125] RAX: 0000000000000038 RBX: ffffb8330186c000 RCX: 0000000000000000 <4>[ 33.692387] RDX: 0000000000000000 RSI: ffff95e53ad1bf50 RDI: ffffffffb41828f0 <4>[ 33.700644] RBP: ffffffffb418201a R08: 0000000000000000 R09: 0000000000000000 <4>[ 33.708902] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000019 <4>[ 33.717162] R13: ffffb8330186ff10 R14: ffffb8330186ff10 R15: ffff95e4c3b13000 <4>[ 33.725422] FS: 00007f8382a11580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 33.734750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.741456] CR2: ffffb8330186bfff CR3: 000000010486e003 CR4: 00000000003706e0 <4>[ 33.749715] Call Trace: <4>[ 33.752732] <#DF> <4>[ 33.755265] ? __die_body.cold+0x1a/0x1f <4>[ 33.759934] ? die+0x2b/0x50 <4>[ 33.763438] ? handle_stack_overflow+0x3e/0x4d <4>[ 33.768690] ? no_context+0x24d/0x380 <4>[ 33.773091] <4>[ 33.775719] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 33.828529] ---[ end trace fd88bdcc3c2da481 ]--- <4>[ 33.833975] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 33.838634] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 33.859907] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 33.866022] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 33.874281] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 33.882539] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 33.890800] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 33.899070] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 33.907332] FS: 00007f8382a11580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 33.916659] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.923365] CR2: ffffb8330186bfff CR3: 000000010486e003 CR4: 00000000003706e0 <3>[ 33.931626] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 33.941845] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 981, name: cat 31.978153] R13: ffffb833014b7f10 R14: ffffb833014b7f10 R15: ffff<4>[ 33.950502] INFO: lockdep is turned off. <4>[ 33.961382] irq event stamp: 0 <4>[ 33.965079] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 33.972368] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 33.981794] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 33.991219] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 33.998509] CPU: 2 PID: 981 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 34.007352] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 34.014447] Call Trace: <4>[ 34.017465] dump_stack+0x77/0x9b <4>[ 34.021453] ___might_sleep.cold+0xa6/0xb6 <4>[ 34.026316] exit_signals+0x1c/0x300 <4>[ 34.030597] do_exit+0xc2/0xab0 <4>[ 34.034381] ? ksys_write+0x68/0xf0 <4>[ 34.038555] make_task_dead+0x2f/0x30 <4>[ 34.042925] rewind_stack_and_make_dead+0x17/0x20 <4>[ 34.048467] RIP: 0033:0x7f8382927473 <4>[ 34.052739] 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>[ 34.074013] RSP: 002b:00007fff7dfd2658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 34.082750] RAX: ffffffffffffffda RBX: 0000000000000019 RCX: 00007f8382927473 <4>[ 34.091009] RDX: 0000000000000019 RSI: 00007f838281b000 RDI: 0000000000000001 <4>[ 34.099269] RBP: 00007f838281b000 R08: 00007f838281a010 R09: 0000000000000000 <4>[ 34.107531] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 34.115789] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 95e4c38db000 # [ 31.992657] FS: 00007f1c5c8f0580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 32.008180] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 32.014892] CR2: 00007f1c5c6fa000 CR3: 0000000104456005 CR4: 00000000003706e0 # [ 32.023157] Call Trace: # [ 32.032391] ? __warn+0x80/0x110 # [ 32.042498] ? lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 32.053969] ? report_bug+0x9e/0xc0 # [ 32.064372] ? handle_bug+0x41/0x90 # [ 32.074770] ? exc_invalid_op+0x14/0x70 # [ 32.079345] ? asm_exc_invalid_op+0x12/0x20 # [ 32.090521] ? lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 32.101988] direct_entry.cold+0x2c/0x38 # [ 32.112877] full_proxy_write+0x53/0x80 # [ 32.123668] vfs_write+0xe7/0x3b0 # [ 32.133878] ksys_write+0x68/0xf0 # [ 32.144085] do_syscall_64+0x30/0x40 # [ 32.154585] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ <6>[ 34.209226] lkdtm: Performing direct entry STACK_GUARD_PAGE_TRAILING <6>[ 34.218503] lkdtm: attempting bad read from page above current stack <0>[ 34.225907] BUG: stack guard page was hit at 00000000e126ac3e (stack is 0000000010b56308..00000000dccd8da6) <4>[ 34.237091] kernel stack overflow (page fault): 0000 [#4] SMP PTI 32.160520] RIP: 0033:0x7f1c5c806473 # [ 32.171012] Code: 8b<4>[ 34.244189] CPU: 2 PID: 1015 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 34.259343] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 34.266443] RIP: 0010:lkdtm_STACK_GUARD_PAGE_TRAILING+0x27/0x3d <4>[ 34.273345] Code: de fb ff 0f 1f 44 00 00 53 48 c7 c7 28 29 18 b4 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 d0 de fb ff 48 c7 c7 68 29 18 b4 <8a> 83 00 40 00 00 88 44 24 07 0f b6 74 24 07 5a 5b e9 b3 de fb ff <4>[ 34.294618] RSP: 0018:ffffb833018ffe50 EFLAGS: 00010246 <4>[ 34.300742] RAX: 0000000000000038 RBX: ffffb833018fc000 RCX: 0000000000000000 <4>[ 34.309002] RDX: 0000000000000000 RSI: ffff95e53ad1bf50 RDI: ffffffffb4182968 <4>[ 34.317260] RBP: ffffffffb4182033 R08: 0000000000000000 R09: 0000000000000000 <4>[ 34.325519] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001a <4>[ 34.333780] R13: ffffb833018fff10 R14: ffffb833018fff10 R15: ffff95e4c5a56000 <4>[ 34.342040] FS: 00007f40cf3f3580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 34.351361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 34.358058] CR2: ffffb83301900000 CR3: 0000000100fc0005 CR4: 00000000003706e0 <4>[ 34.366318] Call Trace: <4>[ 34.369336] <#DF> <4>[ 34.371869] ? __die_body.cold+0x1a/0x1f <4>[ 34.376563] ? die+0x2b/0x50 <4>[ 34.380064] ? handle_stack_overflow+0x3e/0x4d <4>[ 34.385315] ? no_context+0x24d/0x380 <4>[ 34.389692] 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f <4>[ 34.392319] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 34.451311] ---[ end trace fd88bdcc3c2da482 ]--- <4>[ 34.456748] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 34.461415] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 34.482687] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 34.488812] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 34.497071] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 34.505344] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 34.513605] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 34.521866] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 34.530124] FS: 00007f40cf3f3580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 34.539451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 34.546156] CR2: ffffb83301900000 CR3: 0000000100fc0005 CR4: 00000000003706e0 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 # [ 32.192291] RSP: 002b:00007ffec0d6b5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 32.207255] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007f1c5c806473 # [ 32.221735] RDX: 0000000000000010 RSI: 00007f1c5c6fa000 RDI: 0000000000000001 # [ 32.229999] RBP: 00007f1c5c6fa000 R08: 00007f1c5c6f9010 R09: 0000000000000000 # [ 32.244473] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 32.252739] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 32.267217] irq event stamp: 0 # [ 32.277130] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 32.284426] hardirqs last disabled at (0): [] copy_process+0<6>[ 34.633506] lkdtm: Performing direct entry UNSET_SMEP x65c/0x20e0 # [ 32.300064] softirqs last enabled at (0): [[ 34.641180] lkdtm: trying to clear SMEP normally fffffffb20fd6cc>] copy_process+0x65c/0x20e0 # [ 32.315710] so<4>[ 34.652844] ------------[ cut here ]------------ <4>[ 34.664503] pinned CR4 bits changed: 0x100000!? ftirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 32.<4>[ 34.669879] WARNING: CPU: 1 PID: 1052 at arch/x86/kernel/cpu/common.c:397 native_write_cr4+0x45/0x60 323004] ---[ end trace fd88bdcc3c2da47f ]--- # WARNING_MESSAGE:<4>[ 34.686563] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 saw 'message trigger': ok ok 4 selftests: lkdtm: WARNING_MESSA<4>[ 34.745525] CPU: 1 PID: 1052 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 34.760683] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 GE.sh # selftests: lkdtm: EXCEPTION.sh # Killed # [ 32.4079<4>[ 34.767784] RIP: 0010:native_write_cr4+0x45/0x60 <4>[ 34.779441] Code: 39 c2 75 2d 48 85 f6 75 05 c3 cc cc cc cc 80 3d 78 5e 66 02 00 75 f2 48 c7 c7 50 fd 07 b4 c6 05 68 5e 66 02 01 e8 75 45 15 01 <0f> 0b c3 cc cc cc cc 48 89 d6 48 81 e7 ff f7 ce ff 48 31 c6 48 09 73] lkdtm: Performing direct entry EXCEPTION # [ 32.415101] B<4>[ 34.800716] RSP: 0018:ffffb8330194fe48 EFLAGS: 00010286 <4>[ 34.813053] RAX: 0000000000000000 RBX: 00000000002706e0 RCX: 0000000000000000 UG: kernel NULL pointer dereference, address: 0000000000000000 <4>[ 34.821343] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 32.423176] #PF: supervisor write access in kernel mode # <4>[ 34.835821] RBP: ffffffffb418204d R08: 0000000000000000 R09: 0000000000000000 [ 32.435514] #PF: error_code(0x0002) - not-present page # [ <4>[ 34.850298] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b 32.441541] PGD 0 P4D 0 # [ 32.444648] Oops: 0002 [#2] SMP P<4>[ 34.864777] R13: ffffb8330194ff10 R14: ffffb8330194ff10 R15: ffff95e4c653a000 TI # [ 32.448829] CPU: 3 PID: 748 Comm: cat Tainted: G D<4>[ 34.879257] FS: 00007f8ece23c580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 34.894802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 W 5.10.201-cip40 #1 # [ 32.457673] Hardware name: Go<4>[ 34.901552] CR2: 00007f8ece046000 CR3: 0000000104806004 CR4: 00000000003706e0 ogle Rammus/Rammus, BIOS 09/04/2020 # [ 32.464769] RIP: 0010<4>[ 34.916007] Call Trace: :lkdtm_EXCEPTION+0x5/0x20 # [ 32.470010] Code: 48 c7 c7 10 25<4>[ 34.925248] ? __warn+0x80/0x110 18 b4 8d 70 01 89 35 31 66 0b 03 e8 4a b0 69 00 0f 0b c3 cc cc <4>[ 34.935355] ? native_write_cr4+0x45/0x60 cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 04 25 00 00<4>[ 34.946342] ? report_bug+0x9e/0xc0 00 00 00 00 00 00 c3 cc cc cc cc 66 66 2e 0f 1f 84 # [ 32.49<4>[ 34.956745] ? handle_bug+0x41/0x90 <4>[ 34.967144] ? exc_invalid_op+0x14/0x70 1284] RSP: 0018:ffffb8330152fe60 EFLAGS: 00010282 # [ 32.4974<4>[ 34.971719] ? asm_exc_invalid_op+0x12/0x20 09] RAX: ffffffffb2b7b6b0 RBX: 0000000000000004 RCX: 00000000000<4>[ 34.982894] ? native_write_cr4+0x45/0x60 <4>[ 34.993875] ? native_write_cr4+0x45/0x60 00000 # [ 32.505669] RDX: 0000000000000000 RSI: ffff95e53ad9b<4>[ 34.998644] lkdtm_UNSET_SMEP.cold+0x1d/0x103 <4>[ 35.010027] direct_entry.cold+0x2c/0x38 f50 RDI: ffffffffb3cf80e0 # [ 32.513928] RBP: ffffffffb4075ca<4>[ 35.014706] full_proxy_write+0x53/0x80 f R08: 0000000000000000 R09: 0000000000000000 # [ 32.522189] <4>[ 35.025490] vfs_write+0xe7/0x3b0 R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000<4>[ 35.035697] ksys_write+0x68/0xf0 a # [ 32.530450] R13: ffffb8330152ff10 R14: ffffb8330152ff10 <4>[ 35.045906] do_syscall_64+0x30/0x40 <4>[ 35.056403] entry_SYSCALL_64_after_hwframe+0x62/0xc7 R15: ffff95e4c3834000 # [ 32.538711] FS: 00007fd5316f3580(00<4>[ 35.062339] RIP: 0033:0x7f8ece152473 <4>[ 35.072836] 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) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 32.5<4>[ 35.094113] RSP: 002b:00007ffcbb1696d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 35.109071] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f8ece152473 48038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ <4>[ 35.117337] RDX: 000000000000000b RSI: 00007f8ece046000 RDI: 0000000000000001 32.554745] CR2: 0000000000000000 CR3: 000000010264c002 CR4: 0000<4>[ 35.131813] RBP: 00007f8ece046000 R08: 00007f8ece045010 R09: 0000000000000000 0000003706e0 # [ 32.563003] Call Trace: # [ 32.566025] ? <4>[ 35.146293] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 35.160770] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 __die_body.cold+0x1a/0x1f # [ 32.570694] ? no_context+0x177/<4>[ 35.169057] irq event stamp: 0 <4>[ 35.178943] hardirqs last enabled at (0): [<0000000000000000>] 0x0 0x380 # [ 32.575074] ? exc_page_fault+0x53/0x170 # [ 32.5<4>[ 35.186238] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 35.201873] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 79744] ? asm_exc_page_fault+0x1e/0x30 # [ 32.584705] ? lkdt<4>[ 35.211304] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 35.224807] ---[ end trace fd88bdcc3c2da483 ]--- m_WARNING_MESSAGE+0x30/0x30 # [ 32.589954] ? lkdtm_EXCEPTION<6>[ 35.230255] lkdtm: ok: SMEP did not get cleared +0x5/0x20 # [ 32.594525] direct_entry.cold+0x2c/0x38 # [ <6>[ 35.241818] lkdtm: trying to clear SMEP with call gadget <6>[ 35.254255] lkdtm: ok: SMEP removal was reverted 32.599194] full_proxy_write+0x53/0x80 # [ 32.603758] vfs_write+0xe7/0x3b0 # [ 32.607746] ksys_write+0x68/0xf0 # [ 32.611734] do_syscall_64+0x30/0x40 # [ 32.616014] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 32.621954] RIP: 0033:0x7fd531609473 # [ 32.626232] 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 # [ 32.647511] RSP: 002b:00007ffc27102ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 32.662473] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fd531609473 # [ 32.670745] RDX: 000000000000000a RSI: 00007fd5314fd000 RDI: 0000000000000001 # [ 32.679007] RBP: 00007fd5314fd000 R08: 00007fd5314fc010 R09: 0000000000000000 # [ 32.687258] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 00000<6>[ 35.342989] lkdtm: Performing direct entry DOUBLE_FAULT <3>[ 35.352836] lkdtm: XFAIL: this test is ia32-only 00000000001 # [ 32.695517] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 32.703784] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 32.762772] CR2: 0000000000000000 # [ 32.766760] ---[ end trace fd88bdcc3c2da480 ]--- # [ 32.772208] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 32.776876] Code: 89 ff e8 2e db 79 ff 48 c7 c<6>[ 35.433935] lkdtm: Performing direct entry CORRUPT_PAC <3>[ 35.445177] lkdtm: XFAIL: this test is arm64-only 0 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 60 66 0b 03 # [ 32.798142] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 32.804267] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 32.812525] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 32.820787] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 32.829046] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 32.837306] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 32.845565] FS: 00007fd5316f3580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 32.854894] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 32.861600] CR2: 0000000000000000 CR3: 000000010264c002 CR4: 00000000003706e0 # [ 32.869862] BUG: sleeping function called from invalid cont<6>[ 35.537798] lkdtm: Performing direct entry UNALIGNED_LOAD_STORE_WRITE ext at include/linux/percpu-rwsem.h:49 # [ 32.880067] in_atom<3>[ 35.551519] lkdtm: XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS ic(): 0, irqs_disabled(): 1, non_block: 0, pid: 748, name: cat # [ 32.888718] INFO: lockdep is turned off. # [ 32.893385] irq event stamp: 0 # [ 32.897082] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 32.904373] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 32.913800] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 32.923217] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 32.930508] CPU: 3 PID: 748 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 32.939343] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 32.946437] Call Trace: # [ 32.949457] dump_stack+0x77/0x9b # [ 32.953446] ___might_sleep.cold+0xa6/0xb6 # [ 32.958309] exit_signals+0x1c/0x300 # [ 32.962580] do_exit+0xc2/0xab0 # [ 32.966375] ? ksys_write+0x68/0xf0 # [ 32.970559] make_task_dead+0x2f/0x30 # [ 32.974950] rewind_stack_and_make_dead+0x17/0x20 # [ 32.980493] RIP: 0033:0x7fd531609473 # [ 32.984764] 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 # [ 33.006039] RSP: 002b:00007ffc27102ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 33.014778] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fd531609473 # [ 33.023038] RDX: 000000000000000a RSI: 00<6>[ 35.704293] lkdtm: Performing direct entry READ_AFTER_FREE <6>[ 35.714959] lkdtm: Value in memory before free: 12345678 <6>[ 35.721206] lkdtm: Attempting bad read from freed memory <6>[ 35.727432] lkdtm: Memory was not poisoned 007fd5314fd000 RDI: 0000000000000001 # [ 33.031298] RBP: 00007fd5314fd000 R08: 00007fd5314fc010 R09: 0000000000000000 # [ 33.039559] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 33.047818] 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_STRONG.sh # SKIP # selftests: lkdtm: CORRUPT_LIST_ADD.sh # [ 33.356210] lkdtm: Performing direct entry CORRUPT_LIST_ADD # [ 33.367195] lkdtm: attempting good list addition # [ 33.378877] lkdtm: attempting corrupted list addition # [ 33.391021] 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 # [ 33.475766] lkdtm: Performing direct entry <6>[ 35.865160] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE CORRUPT_LIST_DEL # [ 33.484363] lkdtm: attempting good list r<6>[ 35.876101] lkdtm: Value in memory before free: 12345678 emoval # [ 33.495950] lkdtm: attempting corrupted list remova<6>[ 35.888566] lkdtm: Attempting to read from freed memory l # [ 33.508003] lkdtm: list_del() corruption not detected! <6>[ 35.900918] lkdtm: Buddy page was not poisoned # 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 # [ 33.592690] lkdtm: Performing direct entry STACK_GUARD_PAGE_LEADING # [ 33.602106] lkdtm: attempting bad read from page below current stack # [ 33.609503] BUG: stack guard page was hit at 000000008e1bccbf (stack is 000000002132ce8c..00000000ed5f7bf3) # [ 33.620684] kernel stack overflow (page fault): 0000 [#3] SMP PTI # [ 33.627781] CPU: 2 PID: 981 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 33.642837] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 33.649925] RIP: 0010:lkdtm_STACK_GUARD_PAGE_LEADING+0x27/0x3a # [ 33.656729] Code: cc cc cc 0f 1f 44 00 00 53 48 c7 c7 b0 28 18 b4 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 0a df fb ff 48 c7 c7 f0 28 18 b4 <8a> 43 ff 88 44 24 07 0f b6 74 24 07 5a 5b e9 f0 de fb ff 0f 1f 44 # [ 33.678001] RSP: 0018:ffffb8330186fe50 EFLAGS: 00010246 # [ 33.684125] RAX: 0000000000000038 RBX: ffffb83301<6>[ 36.017759] lkdtm: Performing direct entry SLAB_FREE_DOUBLE <6>[ 36.024628] lkdtm: Attempting double slab free ... 86c000 RCX: 0000000000000000 # [ 33.692387] RDX: 0000000000000000 RSI: ffff95e53ad1bf50 RDI: ffffffffb41828f0 # [ 33.700644] RBP: ffffffffb418201a R08: 0000000000000000 R09: 0000000000000000 # [ 33.708902] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000019 # [ 33.717162] R13: ffffb8330186ff10 R14: ffffb8330186ff10 R15: ffff95e4c3b13000 # [ 33.725422] FS: 00007f8382a11580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 33.734750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.741456] CR2: ffffb8330186bfff CR3: 000000010486e003 CR4: 00000000003706e0 # [ 33.749715] Call Trace: # [ 33.752732] <#DF> # [ 33.755265] ? __die_body.cold+0x1a/0x1f # [ 33.759934] ? die+0x2b/0x50 # [ 33.763438] ? handle_stack_overflow+0x3e/0x4d # [ 33.768690] ? no_context+0x24d/0x380 # [ 33.773091] # [ 33.775719] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_c<6>[ 36.132796] lkdtm: Performing direct entry SLAB_FREE_CROSS hardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_u<6>[ 36.142638] lkdtm: Attempting cross-cache slab free ... sbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 33.828529] ---[ end trace fd88bdcc3c2da481 ]--- # [ 33.833975] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 33.838634] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 33.859907] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 33.866022] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 33.874281] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 33.882539] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 33.890800] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 33.899070] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 33.907332] FS: 0<6>[ 36.254834] lkdtm: Performing direct entry SLAB_FREE_PAGE <6>[ 36.266938] lkdtm: Attempting non-Slab slab free ... 0007f8382a11580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 33.916659] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.923365] CR2: ffffb8330186bfff CR3: 000000010486e003 CR4: 00000000003706e0 # [ 33.931626] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 33.941845] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 981, name: cat # [ 33.950502] INFO: lockdep is turned off. # [ 33.961382] irq event stamp: 0 # [ 33.965079] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 33.972368] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 33.981794] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 33.991219] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 33.998509] CPU: 2 PID: 981 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 34.007352] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 34.014447] Call Trace: # [ 34.017465] dump_stack+0x77/0x9b # [ 34.021453] ___might_sleep.cold+0xa6/0xb6 # [ 34.026316] exit_signals+0x1c/0x300 # [ 34.030597] do_exit+0xc2/0xab0 # [ 34.034381] ? ksys_write+0x68/0xf0 # [ 34.038555] make_task_dead+0x2f/0x30 # [ 34.042925] rewind_stack_and_make_dead+0x17/0x20 # [ 34.048467] RIP: 0033:0x7f8382927473 # [ 34.052739] 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 # [ 34.074013] RSP: 002b:00007fff7dfd2658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 34.082750] RAX: ffffffffffffffda RBX: 0000000000000019 RCX: 00007f8382927473 # [ 34.091009] RDX: 0000000000000019 RSI: 00007f838281b000 RDI: 0000000000000001 # [ 34.099269] RBP: 00007f838281b000 R08: 00007f838281a010 R09: 0000000000000000 # [ 34.107531] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 34.115789] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # 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 # [ 34.209226] lkdtm: Performing direct entry STACK_GUARD_PAGE_TRAILING # [ 34.218503] lkdtm: attempting bad read from page above current stack # [ 34.225907] BUG: stack guard page was hit at 00000000e126ac3e (stack is 0000000010b56308..00000000dccd8da6) # [ 34.237091] kernel stack overflow (page fault): 0000 [#4] SMP PTI<6>[ 36.522280] lkdtm: Performing direct entry EXEC_DATA # [ 34.244189] CPU: 2 PID: 1015 Comm: cat Tainted: G D <6>[ 36.533503] lkdtm: attempting ok execution at ffffffffb2b7ba20 W 5.10.201-cip40 #1 # [ 34.259343] Hardware name: Goo<6>[ 36.546533] lkdtm: attempting bad execution at ffffffffb5c31d00 gle Rammus/Rammus, BIOS 09/04/2020 # [ 34.266443] RIP: 0010:<2>[ 36.559648] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 36.574474] BUG: unable to handle page fault for address: ffffffffb5c31d00 <1>[ 36.582442] #PF: supervisor instruction fetch in kernel mode <1>[ 36.589069] #PF: error_code(0x0011) - permissions violation <6>[ 36.595581] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 800000001ac000e3 <4>[ 36.603359] Oops: 0011 [#5] SMP PTI <4>[ 36.607540] CPU: 0 PID: 1575 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 36.616480] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 36.623578] RIP: 0010:data_area+0x0/0x40 <4>[ 36.628251] Code: ff ff 00 12 8b c0 e4 95 ff ff 00 11 8b c0 e4 95 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>[ 36.649514] RSP: 0018:ffffb833021e7e48 EFLAGS: 00010246 <4>[ 36.655637] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 36.663896] RDX: 0000000000000000 RSI: ffff95e53ac1bf50 RDI: ffff95e53ac1bf50 <4>[ 36.672154] RBP: ffffffffb5c31d00 R08: 0000000000000000 R09: 0000000000000000 <4>[ 36.680413] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 36.688673] R13: ffffb833021e7f10 R14: ffffb833021e7f10 R15: ffff95e4c6561000 <4>[ 36.696932] FS: 00007f42e04f1580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 <4>[ 36.706260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 36.712967] CR2: ffffffffb5c31d00 CR3: 0000000100fc0005 CR4: 00000000003706f0 <4>[ 36.721227] Call Trace: <4>[ 36.724247] ? __die_body.cold+0x1a/0x1f <4>[ 36.728921] ? no_context+0x177/0x380 <4>[ 36.733300] ? exc_page_fault+0xd7/0x170 <4>[ 36.737973] ? asm_exc_page_fault+0x1e/0x30 <4>[ 36.742936] ? execute_location+0x45/0x56 <4>[ 36.747696] ? direct_entry.cold+0x2c/0x38 <4>[ 36.752560] ? full_proxy_write+0x53/0x80 <4>[ 36.757326] ? vfs_write+0xe7/0x3b0 <4>[ 36.761518] ? ksys_write+0x68/0xf0 <4>[ 36.765692] ? do_syscall_64+0x30/0x40 <4>[ 36.770157] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 36.776283] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 36.829050] CR2: ffffffffb5c31d00 <4>[ 36.833037] ---[ end trace fd88bdcc3c2da484 ]--- <4>[ 36.838483] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 36.843152] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 36.864423] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 36.870547] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 36.878807] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 36.887068] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 36.895328] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 36.903587] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 36.911849] FS: 00007f42e04f1580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 <4>[ 36.921168] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 36.927874] CR2: ffffffffb5c31d00 CR3: 0000000100fc0005 CR4: 00000000003706f0 <3>[ 36.936135] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 36.946336] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1575, name: cat <4>[ 36.955079] INFO: lockdep is turned off. <4>[ 36.959746] irq event stamp: 0 <4>[ 36.963444] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 36.970736] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 36.980162] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 36.989588] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 36.996877] CPU: 0 PID: 1575 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 37.005816] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 37.012910] Call Trace: <4>[ 37.015930] dump_stack+0x77/0x9b <4>[ 37.019926] ___might_sleep.cold+0xa6/0xb6 <4>[ 37.024792] exit_signals+0x1c/0x300 <4>[ 37.029074] do_exit+0xc2/0xab0 <4>[ 37.032868] ? ksys_write+0x68/0xf0 <4>[ 37.037052] make_task_dead+0x2f/0x30 <4>[ 37.041429] rewind_stack_and_make_dead+0x17/0x20 <4>[ 37.046972] RIP: 0033:0x7f42e0407473 <4>[ 37.051249] 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>[ 37.072523] RSP: 002b:00007ffc3c4be858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 37.081269] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f42e0407473 <4>[ 37.089528] RDX: 000000000000000a RSI: 00007f42e02fb000 RDI: 0000000000000001 <4>[ 37.097788] RBP: 00007f42e02fb000 R08: 00007f42e02fa010 R09: 0000000000000000 <4>[ 37.106047] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 37.114307] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 lkdtm_STACK_GUARD_PAGE_TRAILING+0x27/0x3d # [ 34.273345] Code: de fb ff 0f 1f 44 00 00 53 48 c7 c7 28 29 18 b4 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 d0 de fb ff 48 c7 c7 68 29 18 b4 <8a> 83 00 40 00 00 88 44 24 07 0f b6 74 24 07 5a 5b e9 b3 de fb ff # [ 34.294618] RSP: 0018:ffffb833018ffe50 EFLAGS: 00010246 # [ 34.300742] RAX: 0000000000000038 RBX: ffffb833018fc000 RCX: 0000000000000000 # [ 34.309002] RDX: 0000000000000000 RSI: ffff95e53ad1bf50 RDI: ffffffffb4182968 # [ 34.317260] RBP: ffffffffb4182033 R08: 0000000000000000 R09: 0000000000000000 # [ 34.325519] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001a # [ 34.333780] R13: ffffb833018fff10 R14: ffffb833018fff10 R15: ffff95e4c5a56000 # [ 34.342040] FS: 00007f40cf3f3580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 34.351361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 34.358058] CR2: ffffb83301900000 CR3: 0000000100fc0005 CR4: 00000000003706e0 # [ 34.366318] Call Trace: # [ 34.369336] <#DF> # [ 34.371869] ? __die_body.cold+0x1a/0x1f # [ 34.376563] ? die+0x2b/0x50 # [ 34.380064] ? handl<6>[ 37.230486] lkdtm: Performing direct entry EXEC_STACK <6>[ 37.240397] lkdtm: attempting ok execution at ffffffffb2b7ba20 <6>[ 37.247231] lkdtm: attempting bad execution at ffffb83302297e18 <2>[ 37.254157] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 37.262815] BUG: unable to handle page fault for address: ffffb83302297e18 <1>[ 37.270775] #PF: supervisor instruction fetch in kernel mode <1>[ 37.277384] #PF: error_code(0x0011) - permissions violation <6>[ 37.283896] PGD 100000067 P4D 100000067 PUD 100244067 PMD 10409c067 PTE 8000000103d01063 <4>[ 37.293230] Oops: 0011 [#6] SMP PTI <4>[ 37.297405] CPU: 3 PID: 1612 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 37.306345] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 37.313442] RIP: 0010:0xffffb83302297e18 <4>[ 37.318108] Code: 00 00 18 7e 29 02 33 b8 ff ff 0f e6 25 b3 ff ff ff ff 20 00 00 00 00 00 00 00 76 21 18 b4 ff ff ff ff 3e e7 25 b3 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>[ 37.339383] RSP: 0018:ffffb83302297df8 EFLAGS: 00010246 <4>[ 37.345508] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 37.353768] RDX: 0000000000000000 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 <4>[ 37.362027] RBP: ffffb83302297e18 R08: 0000000000000000 R09: 0000000000000000 <4>[ 37.370289] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b <4>[ 37.378541] R13: ffffb83302297f10 R14: ffffb83302297f10 R15: ffff95e4c3cb2000 <4>[ 37.386838] FS: 00007fbd1255a580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 37.396166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.402873] CR2: ffffb83302297e18 CR3: 0000000103874002 CR4: 00000000003706e0 <4>[ 37.411132] Call Trace: <4>[ 37.414152] ? __die_body.cold+0x1a/0x1f <4>[ 37.418822] ? no_context+0x177/0x380 <4>[ 37.423202] ? exc_page_fault+0xd7/0x170 <4>[ 37.427870] ? asm_exc_page_fault+0x1e/0x30 <4>[ 37.432824] ? execute_location+0x45/0x56 <4>[ 37.437586] ? lkdtm_EXEC_STACK+0x26/0x44 <4>[ 37.442353] ? direct_entry.cold+0x2c/0x38 <4>[ 37.447261] ? full_proxy_write+0x53/0x80 <4>[ 37.452027] ? vfs_write+0xe7/0x3b0 <4>[ 37.456210] ? ksys_write+0x68/0xf0 <4>[ 37.460394] ? do_syscall_64+0x30/0x40 <4>[ 37.464868] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 e_stack_overflow+0x3e/0x4d # [ 34.385315] ? no_context+0x24d<4>[ 37.470994] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 37.529981] CR2: ffffb83302297e18 <4>[ 37.533968] ---[ end trace fd88bdcc3c2da485 ]--- <4>[ 37.539413] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 37.544072] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 37.565341] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 37.571463] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 37.579721] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 37.587980] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 37.596239] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 37.604498] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 37.612757] FS: 00007fbd1255a580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 37.622085] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.628793] CR2: ffffb83302297e18 CR3: 0000000103874002 CR4: 00000000003706e0 /0x380 # [ 34.389692] # [ 34.392319] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 34.451311] ---[ end trace fd88bdcc3c2da482 ]--- # [ 34.456748] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 34.461415] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 34.482687] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 34.488812] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 34.497071] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 34.505344] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 34.513605] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 34.521866] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 34.530124] FS: 00007f40<6>[ 37.771363] lkdtm: Performing direct entry EXEC_KMALLOC cf3f3580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <6>[ 37.779917] lkdtm: attempting ok execution at ffffffffb2b7ba20 # [ 34.539451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050<6>[ 37.792942] lkdtm: attempting bad execution at ffff95e4c6d4a440 033 # [ 34.546156] CR2: ffffb83301900000 CR3: 0000000100fc000<2>[ 37.806063] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 37.820926] BUG: unable to handle page fault for address: ffff95e4c6d4a440 5 CR4: 00000000003706e0 # STACK_GUARD_PAGE_TRAILING: saw 'call <1>[ 37.828897] #PF: supervisor instruction fetch in kernel mode <1>[ 37.841722] #PF: error_code(0x0011) - permissions violation <6>[ 37.848235] PGD 1ae01067 P4D 1ae01067 PUD 100874063 PMD 106c96063 PTE 8000000106d4a063 trace:': ok ok 13 selftests: lkdtm: STACK_GUARD_PAGE_TRAILING.s<4>[ 37.857374] Oops: 0011 [#7] SMP PTI <4>[ 37.867767] CPU: 1 PID: 1649 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 37.876706] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 37.883801] RIP: 0010:0xffff95e4c6d4a440 <4>[ 37.888469] Code: ad de c0 b3 e4 c6 e4 95 ff ff 40 a5 d4 c6 e4 95 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 40 00 38 00 09 00 40 00 18 00 17 00 <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 <4>[ 37.909738] RSP: 0018:ffffb8330231fe38 EFLAGS: 00010246 <4>[ 37.915877] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 37.924136] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 37.932395] RBP: ffff95e4c6d4a440 R08: 0000000000000000 R09: 0000000000000000 <4>[ 37.940656] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d <4>[ 37.948916] R13: ffffb8330231ff10 R14: ffffb8330231ff10 R15: ffff95e4c2c15000 <4>[ 37.957177] FS: 00007f2e705bc580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 37.966504] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.973210] CR2: ffff95e4c6d4a440 CR3: 0000000104806003 CR4: 00000000003706e0 <4>[ 37.981471] Call Trace: h < # selftests: lkdtm: UNSET_SMEP.sh # [ 34.633506] lkdtm: Pe4>[ 37.984491] ? __die_body.cold+0x1a/0x1f <4>[ 37.995375] ? no_context+0x177/0x380 <4>[ 37.999755] ? exc_page_fault+0xd7/0x170 rforming direct entry UNSET_SMEP # [ 34.641180] lkdtm: trying<4>[ 38.004425] ? asm_exc_page_fault+0x1e/0x30 to clear SMEP normally # [ 34.652844] ------------[ cut here<4>[ 38.015615] ? execute_location+0x45/0x56 <4>[ 38.026596] ? lkdtm_EXEC_KMALLOC+0x2c/0x40 <4>[ 38.031566] ? direct_entry.cold+0x2c/0x38 <4>[ 38.036430] ? full_proxy_write+0x53/0x80 <4>[ 38.041197] ? vfs_write+0xe7/0x3b0 <4>[ 38.045372] ? ksys_write+0x68/0xf0 <4>[ 38.049567] ? do_syscall_64+0x30/0x40 ]------------ # [ 34.664503] pinned CR4 bits changed: 0x1000<4>[ 38.054047] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 00!? # [ 34.669879] WARNING: CPU: 1 PID: 1052 at arch/x86/ker<4>[ 38.066386] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 38.125333] CR2: ffff95e4c6d4a440 <4>[ 38.129322] ---[ end trace fd88bdcc3c2da486 ]--- <4>[ 38.134767] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 38.139434] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 38.160705] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 38.166828] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 38.175088] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 38.183346] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 38.191605] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 38.199864] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 38.208125] FS: 00007f2e705bc580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 38.217453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.224159] CR2: ffff95e4c6d4a440 CR3: 0000000104806003 CR4: 00000000003706e0 <3>[ 38.232419] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 38.242612] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1649, name: cat <4>[ 38.251357] INFO: lockdep is turned off. <4>[ 38.256023] irq event stamp: 0 <4>[ 38.259720] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 38.267009] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 38.276436] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 38.285877] softirqs last disabled at (0): [<0000000000000000>] 0x0 nel/cpu/common.c:397 native_write_cr4+0x45/0x60 # [ 34.686563<4>[ 38.293173] CPU: 1 PID: 1649 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 38.308325] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 38.315418] Call Trace: <4>[ 38.318436] dump_stack+0x77/0x9b ] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_se<4>[ 38.322427] ___might_sleep.cold+0xa6/0xb6 <4>[ 38.333504] exit_signals+0x1c/0x300 <4>[ 38.337798] do_exit+0xc2/0xab0 nsors cros_ec_sensors_core industrialio_triggered_buffer kfifo_b<4>[ 38.341600] ? ksys_write+0x68/0xf0 <4>[ 38.351994] make_task_dead+0x2f/0x30 <4>[ 38.356371] rewind_stack_and_make_dead+0x17/0x20 <4>[ 38.361912] RIP: 0033:0x7f2e704d2473 <4>[ 38.366191] 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>[ 38.387452] RSP: 002b:00007ffc36336238 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 38.396196] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f2e704d2473 <4>[ 38.404456] RDX: 000000000000000d RSI: 00007f2e703c6000 RDI: 0000000000000001 <4>[ 38.412714] RBP: 00007f2e703c6000 R08: 00007f2e703c5010 R09: 0000000000000000 <4>[ 38.420972] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 38.429232] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 uf industrialio snd_soc_da7219 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 34.745525] CPU: 1 PID: 1052 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 34.760683] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 34.767784] RIP: 0010:native_write_cr4+0x45/0x60 # [ 34.779441] Code: 39 c2 75 2d 48 85 f6 75 05 c3 cc cc cc cc 80 3d 78 5e 66 02 00 75 f2 48 c7 c7 50 fd 07 b4 c6 05 68 5e 66 02 01 e8 75 45 15 01 <0f> 0b c3 cc cc cc cc 48 89 d6 48 81 e7 ff f7 ce ff 48 31 c6 48 09 # [ 34.800716] RSP: 0018:ffffb8330194fe48 EFLAGS: 00010286 # [ 34.813053] RAX: 0000000000000000 RBX: 00000000002706e0 RCX: 0000000000000000 # [ 34.821343] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 34.835821] RBP: ffffffffb418204d R08: 0000000000000000 R09: 0000000000000000 # [<6>[ 38.545573] lkdtm: Performing direct entry EXEC_VMALLOC <6>[ 38.555518] lkdtm: attempting ok execution at ffffffffb2b7ba20 34.850298] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0<6>[ 38.562338] lkdtm: attempting bad execution at ffffb83300385000 <2>[ 38.575473] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) 00000000000000b # [ 34.864777] R13: ffffb8330194ff10 R14: fff<1>[ 38.584121] BUG: unable to handle page fault for address: ffffb83300385000 <1>[ 38.598309] #PF: supervisor instruction fetch in kernel mode fb8330194ff10 R15: ffff95e4c653a000 # [ 34.879257] FS: 00007<1>[ 38.604920] #PF: error_code(0x0011) - permissions violation f8[ 38.617649] PGD 100000067 P4D 100000067 PUD 100244067 PMD 1009c0067 PTE 8000000104860063 <4>[ 38.633197] Oops: 0011 [#8] SMP PTI 00 # [ 34.894802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080<4>[ 38.637381] CPU: 3 PID: 1686 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 38.652536] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 38.659622] RIP: 0010:0xffffb83300385000 <4>[ 38.664283] Code: Unable to access opcode bytes at RIP 0xffffb83300384fd6. <4>[ 38.672243] RSP: 0018:ffffb8330235fe38 EFLAGS: 00010246 <4>[ 38.678368] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 38.686628] RDX: 0000000000000000 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 <4>[ 38.694888] RBP: ffffb83300385000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 38.703146] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d <4>[ 38.711406] R13: ffffb8330235ff10 R14: ffffb8330235ff10 R15: ffff95e4c4860000 <4>[ 38.719665] FS: 00007f9590d74580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 38.728992] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.735699] CR2: ffffb83300384fd6 CR3: 0000000105b12002 CR4: 00000000003706e0 <4>[ 38.743958] Call Trace: <4>[ 38.746979] ? __die_body.cold+0x1a/0x1f <4>[ 38.751649] ? no_context+0x177/0x380 <4>[ 38.756028] ? exc_page_fault+0xd7/0x170 <4>[ 38.760695] ? asm_exc_page_fault+0x1e/0x30 <4>[ 38.765663] ? execute_location+0x45/0x56 <4>[ 38.770430] ? lkdtm_EXEC_VMALLOC+0x20/0x30 <4>[ 38.775388] ? direct_entry.cold+0x2c/0x38 <4>[ 38.780250] ? full_proxy_write+0x53/0x80 <4>[ 38.785007] ? vfs_write+0xe7/0x3b0 <4>[ 38.789189] ? ksys_write+0x68/0xf0 <4>[ 38.793372] ? do_syscall_64+0x30/0x40 <4>[ 38.797844] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 050033 # [ 34.901552] CR2: 00007f8ece046000 CR3: 000000010480<4>[ 38.803971] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 38.862961] CR2: ffffb83300385000 <4>[ 38.866950] ---[ end trace fd88bdcc3c2da487 ]--- <4>[ 38.872394] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 38.877061] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 38.898335] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 38.904450] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 38.912709] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 38.920969] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 38.929229] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 38.937490] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 38.945751] FS: 00007f9590d74580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 38.955079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.961786] CR2: ffffb83300384fd6 CR3: 0000000105b12002 CR4: 00000000003706e0 6004 CR4: 00000000003706e0 # [ 34.916007] Call Trace: # [ 34.925248] ? __warn+0x80/0x110 # [ 34.935355] ? native_write_cr4+0x45/0x60 # [ 34.946342] ? report_bug+0x9e/0xc0 # [ 34.956745] ? handle_bug+0x41/0x90 # [ 34.967144] ? exc_invalid_op+0x14/0x70 # [ 34.971719] ? asm_exc_invalid_op+0x12/0x20 # [ 34.982894] ? native_write_cr4+0x45/0x60 # [ 34.993875] ? native_write_cr4+0x45/0x60 # [ 34.998644] lkdtm_UNSET_SMEP.cold+0x1d/0x103 # [ 35.010027] direct_entry.cold+0x2c/0x38 # [ 35.014706] full_proxy_write+0x53/0x80 # [ 35.025490] vfs_write+0xe7/0x3b0 # [ 35.035697] ksys_write+0x68/0xf0 # [ 35.045906] do_syscall_64+0x30/0x40 # [ 35.056403] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 35.062339] RIP: 0033:0x7f8ece152473 # [ 35.072836] 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 # [ 35.094113] RSP: 002b:00007ffcbb1696d8 EFLAGS: 00000246 ORIG_RAX: 0000000<6>[ 39.072995] lkdtm: Performing direct entry EXEC_RODATA 000000001 # [ 35.109071] RAX: ffffffffffffffda RBX: 000000000<6>[ 39.081765] lkdtm: attempting ok execution at ffffffffb2b7ba20 000000b RCX: 00007f8ece152473 # [ 35.117337] RDX: 00000000000<6>[ 39.094788] lkdtm: attempting bad execution at ffffffffb3cf8540 0000b RSI: 00007f8ece046000 RDI: 0000000000000001 # [ 35.1318<2>[ 39.107906] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 39.122780] BUG: unable to handle page fault for address: ffffffffb3cf8540 <1>[ 39.130752] #PF: supervisor instruction fetch in kernel mode <1>[ 39.137364] #PF: error_code(0x0011) - permissions violation <6>[ 39.143867] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 8000000018c000e1 13] RBP: 00007f8ece046000 R08: 00007f8ece045010 R09: 00000000000<4>[ 39.151655] Oops: 0011 [#9] SMP PTI <4>[ 39.162052] CPU: 1 PID: 1723 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 39.170993] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 39.178090] RIP: 0010:lkdtm_rodata_do_nothing+0x0/0x10 00000 # [ 35.146293] R10: fffffffffffffbc5 R11: 0000000000000<4>[ 39.184119] Code: ff ff ae fb 25 b3 ff ff ff ff c2 23 18 b4 ff ff ff ff f4 e2 25 b3 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>[ 39.211604] RSP: 0018:ffffb83302447e48 EFLAGS: 00010246 <4>[ 39.217727] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 <4>[ 39.225987] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 39.234247] RBP: ffffffffb3cf8540 R08: 0000000000000000 R09: 0000000000000000 <4>[ 39.242506] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c <4>[ 39.250766] R13: ffffb83302447f10 R14: ffffb83302447f10 R15: ffff95e4c380e000 <4>[ 39.259028] FS: 00007feffae84580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 39.268349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 39.275047] CR2: ffffffffb3cf8540 CR3: 0000000103ca4003 CR4: 00000000003706e0 <4>[ 39.283307] Call Trace: 24<6 R12: 0000000000000001 # [ 35.160770] R13: 0000000000000004>[ 39.286344] ? __die_body.cold+0x1a/0x1f <4>[ 39.297228] ? no_context+0x177/0x380 1 R14: 0000000000020000 R15: 0000000000020000 # [ 35.169057] <4>[ 39.301610] ? exc_page_fault+0xd7/0x170 <4>[ 39.312486] ? asm_exc_page_fault+0x1e/0x30 ir[ 39.317450] ? execute_location+0x45/0x56 <4>[ 39.328431] ? direct_entry.cold+0x2c/0x38 <4>[ 39.333296] ? full_proxy_write+0x53/0x80 0): [<0000000000000000>] 0x0 # [ 35.186238] hardirqs last dis<4>[ 39.338062] ? vfs_write+0xe7/0x3b0 <4>[ 39.348456] ? ksys_write+0x68/0xf0 <4>[ 39.352631] ? do_syscall_64+0x30/0x40 <4>[ 39.357106] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 abled at (0): [] copy_process+0x65c/0x20e0 # <4>[ 39.363231] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 39.422182] CR2: ffffffffb3cf8540 <4>[ 39.426172] ---[ end trace fd88bdcc3c2da488 ]--- <4>[ 39.431617] RIP: 0010:lkdtm_BUG+0x5/0x10 [ 35.201873] softirqs last enabled at (0): [[ 39.436286] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 39.463768] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 39.469909] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 39.478169] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 39.486426] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 39.494686] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 39.502945] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 39.511206] FS: 00007feffae84580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 39.520532] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 39.527239] CR2: ffffffffb3cf8540 CR3: 0000000103ca4003 CR4: 00000000003706e0 <3>[ 39.535500] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 39.545693] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1723, name: cat <4>[ 39.554438] INFO: lockdep is turned off. <4>[ 39.559104] irq event stamp: 0 <4>[ 39.562800] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 39.570090] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 39.579506] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 39.588932] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 39.596222] CPU: 1 PID: 1723 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 39.605152] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 39.612245] Call Trace: <4>[ 39.615264] dump_stack+0x77/0x9b >] copy_process+0x65c/0x20e0 # [ 35.211304] softirqs last dis<4>[ 39.619256] ___might_sleep.cold+0xa6/0xb6 <4>[ 39.630330] exit_signals+0x1c/0x300 <4>[ 39.634611] do_exit+0xc2/0xab0 <4>[ 39.638398] ? ksys_write+0x68/0xf0 <4>[ 39.642581] make_task_dead+0x2f/0x30 <4>[ 39.646956] rewind_stack_and_make_dead+0x17/0x20 <4>[ 39.652498] RIP: 0033:0x7feffad9a473 <4>[ 39.656776] 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>[ 39.678049] RSP: 002b:00007ffee5031f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 39.686795] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007feffad9a473 <4>[ 39.695055] RDX: 000000000000000c RSI: 00007feffac8e000 RDI: 0000000000000001 <4>[ 39.703315] RBP: 00007feffac8e000 R08: 00007feffac8d010 R09: 0000000000000000 <4>[ 39.711575] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 39.719835] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 abled at (0): [<0000000000000000>] 0x0 # [ 35.224807] ---[ end trace fd88bdcc3c2da483 ]--- # [ 35.230255] lkdtm: ok: SMEP did not get cleared # [ 35.241818] lkdtm: trying to clear SMEP with call gadget # [ 35.254255] 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 # [ 35.342989] lkdtm: Performing direct entry DOUBLE_FAULT # [ 35.352836] 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 # [ 35.433935] lkdtm: Performing direct entry CORRUPT_PAC # [ 35.445177] 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 # [ 35.537798] lkdtm: Performing direct entry UNALIGNED_LOAD_STORE_WRITE # [ 35.551519] 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 #<6>[ 39.837764] lkdtm: Performing direct entry EXEC_USERSPACE selftests: lkdtm: OVERWRITE_ALLOCATION.sh # Skipping OVERWRITE<6>[ 39.846291] lkdtm: attempting ok execution at ffffffffb2b7ba20 _ALLOCATION: Corrupts memory on failure ok 18 selftests: lkdtm:<6>[ 39.859342] lkdtm: attempting bad execution at 00007fcfbf818000 OVERWRITE_ALLOCATION.sh # SKIP # selftests: lkdtm: WRITE_AFTER<2>[ 39.872433] unable to execute userspace code (SMEP?) (uid: 0) <1>[ 39.885352] BUG: unable to handle page fault for address: 00007fcfbf818000 _FREE.sh # Skipping WRITE_AFTER_FREE: Corrupts memory on failur<1>[ 39.893324] #PF: supervisor instruction fetch in kernel mode <1>[ 39.906148] #PF: error_code(0x0011) - permissions violation e < ok 19 selftests: lkdtm: WRITE_AFTER_FREE.sh # SKIP # selftes6>[ 39.912663] PGD 80000001031b5067 P4D 80000001031b5067 PUD 103988067 PMD 104874067 PTE 107ae1067 <4>[ 39.928903] Oops: 0011 [#10] SMP PTI <4>[ 39.933182] CPU: 1 PID: 1760 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 39.942121] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 39.949217] RIP: 0010:0x7fcfbf818000 <4>[ 39.953495] Code: Unable to access opcode bytes at RIP 0x7fcfbf817fd6. <4>[ 39.961074] RSP: 0018:ffffb8330249fe50 EFLAGS: 00010246 <4>[ 39.967198] RAX: 0000000000000033 RBX: 0000000000000024 RCX: 0000000000000000 <4>[ 39.975457] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 39.983730] RBP: 00007fcfbf818000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 39.991991] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000f <4>[ 40.000252] R13: ffffb8330249ff10 R14: ffffb8330249ff10 R15: ffff95e4c3b31000 <4>[ 40.008512] FS: 00007fcfbf7e9580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 40.017839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 40.024544] CR2: 00007fcfbf818000 CR3: 00000001029d6002 CR4: 00000000003706e0 <4>[ 40.032803] Call Trace: ts<: lkdtm: READ_AFTER_FREE.sh # [ 35.704293] lkdtm: Performin4>[ 40.035823] ? __die_body.cold+0x1a/0x1f <4>[ 40.046707] ? no_context+0x177/0x380 <4>[ 40.051088] ? exc_page_fault+0x53/0x170 g direct entry READ_AFTER_FREE # [ 35.714959] lkdtm: Value in<4>[ 40.055757] ? asm_exc_page_fault+0x1e/0x30 m[ 40.066931] ? lkdtm_EXEC_USERSPACE.cold+0x66/0xae <4>[ 40.078784] ? direct_entry.cold+0x2c/0x38 <4>[ 40.083648] ? full_proxy_write+0x53/0x80 g bad read from freed memory # [ 35.727432] lkdtm: Memory was<4>[ 40.088414] ? vfs_write+0xe7/0x3b0 <4>[ 40.098809] ? ksys_write+0x68/0xf0 <4>[ 40.102993] ? do_syscall_64+0x30/0x40 <4>[ 40.107477] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 not poisoned # READ_AFTER_FREE: missing 'call trace:': [FAIL] <4>[ 40.113604] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 40.172555] CR2: 00007fcfbf818000 <4>[ 40.176544] ---[ end trace fd88bdcc3c2da489 ]--- <4>[ 40.181988] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 40.186655] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 40.207925] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 40.214048] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 40.222308] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 40.230566] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 40.238826] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 40.247086] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 40.255345] FS: 00007fcfbf7e9580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 40.264672] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 40.271376] CR2: 00007fcfbf818000 CR3: 00000001029d6002 CR4: 00000000003706e0 not ok 20 selftests: lkdtm: READ_AFTER_FREE.sh # exit=1 # selftests: lkdtm: WRITE_BUDDY_AFTER_FREE.sh # Skipping WRITE_BUDDY_AFTER_FREE: Corrupts memory on failure ok 21 selftests: lkdtm: WRITE_BUDDY_AFTER_FREE.sh # SKIP # selftests: lkdtm: READ_BUDDY_AFTER_FREE.sh # [ 35.865160] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE # [ 35.876101] lkdtm: Value in memory before free: 12345678 # [ 35.888566] lkdtm: Attempting to read from freed memory # [ 35.900918] 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 # [ 36.017759] lkdtm: Performing direct entry SLAB_FREE_DOUBLE # [ 36.024628] 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 # [ 36.132796] lkdtm: Performing direct entry SLAB_FREE_CROSS # [ 36.142638] lkdtm: Attempting cross-cache slab free ... # SLAB_FREE_CROSS: missing 'call trace:': [FAIL] not ok 24 selftests: l<6>[ 40.386298] lkdtm: Performing direct entry EXEC_NULL <6>[ 40.397348] lkdtm: attempting ok execution at ffffffffb2b7ba20 <6>[ 40.404188] lkdtm: attempting bad execution at 0000000000000000 <1>[ 40.411094] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 40.419191] #PF: supervisor instruction fetch in kernel mode <1>[ 40.425803] #PF: error_code(0x0010) - not-present page <6>[ 40.431822] PGD 0 P4D 0 kdtm: SLAB_FREE_CROSS.sh # exit=1 # selftests: lkdtm: SLAB_FREE<4>[ 40.434941] Oops: 0010 [#11] SMP PTI <4>[ 40.445434] CPU: 2 PID: 1797 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 40.454375] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 40.461472] RIP: 0010:0x0 <4>[ 40.464683] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. <4>[ 40.472643] RSP: 0018:ffffb83302577e48 EFLAGS: 00010246 <4>[ 40.478770] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 <4>[ 40.487030] RDX: 0000000000000000 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 <4>[ 40.495290] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 40.503549] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 40.511808] R13: ffffb83302577f10 R14: ffffb83302577f10 R15: ffff95e4c2c6f000 <4>[ 40.520067] FS: 00007f84a446c580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 40.529395] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 40.536100] CR2: ffffffffffffffd6 CR3: 00000001065ac001 CR4: 00000000003706e0 <4>[ 40.544360] Call Trace: <4>[ 40.547380] ? __die_body.cold+0x1a/0x1f <4>[ 40.552050] ? no_context+0x177/0x380 <4>[ 40.556429] ? exc_page_fault+0x53/0x170 <4>[ 40.561098] ? asm_exc_page_fault+0x1e/0x30 <4>[ 40.566054] execute_location+0x45/0x56 <4>[ 40.570624] direct_entry.cold+0x2c/0x38 <4>[ 40.575293] full_proxy_write+0x53/0x80 <4>[ 40.579864] vfs_write+0xe7/0x3b0 <4>[ 40.583844] ksys_write+0x68/0xf0 <4>[ 40.587824] do_syscall_64+0x30/0x40 <4>[ 40.592093] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 40.598023] RIP: 0033:0x7f84a4382473 <4>[ 40.602302] 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>[ 40.623575] RSP: 002b:00007ffd6fc2e808 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 40.632312] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f84a4382473 <4>[ 40.640572] RDX: 000000000000000a RSI: 00007f84a4276000 RDI: 0000000000000001 <4>[ 40.648831] RBP: 00007f84a4276000 R08: 00007f84a4275010 R09: 0000000000000000 <4>[ 40.657091] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 40.665351] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 _PAGE.sh # [ 36.254834] lkdtm: Performing direct entry SLAB_F<4>[ 40.673613] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 40.732600] CR2: 0000000000000000 <4>[ 40.736589] ---[ end trace fd88bdcc3c2da48a ]--- <4>[ 40.742026] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 40.746684] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 40.767957] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 40.774080] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 40.782339] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 40.790597] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 40.798856] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 40.807115] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 40.815374] FS: 00007f84a446c580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 40.824718] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 40.831423] CR2: ffffffffffffffd6 CR3: 00000001065ac001 CR4: 00000000003706e0 <3>[ 40.839684] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 40.849886] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1797, name: cat <4>[ 40.858630] INFO: lockdep is turned off. <4>[ 40.863297] irq event stamp: 0 <4>[ 40.866994] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 40.874283] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 40.883709] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 40.893125] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 40.900414] CPU: 2 PID: 1797 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 40.909353] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 40.916448] Call Trace: <4>[ 40.919466] dump_stack+0x77/0x9b <4>[ 40.923455] ___might_sleep.cold+0xa6/0xb6 <4>[ 40.928319] exit_signals+0x1c/0x300 <4>[ 40.932599] do_exit+0xc2/0xab0 <4>[ 40.936383] ? ksys_write+0x68/0xf0 <4>[ 40.940567] make_task_dead+0x2f/0x30 <4>[ 40.944945] rewind_stack_and_make_dead+0x17/0x20 <4>[ 40.950485] RIP: 0033:0x7f84a4382473 <4>[ 40.954764] 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>[ 40.976036] RSP: 002b:00007ffd6fc2e808 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 40.984781] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f84a4382473 <4>[ 40.993040] RDX: 000000000000000a RSI: 00007f84a4276000 RDI: 0000000000000001 <4>[ 41.001298] RBP: 00007f84a4276000 R08: 00007f84a4275010 R09: 0000000000000000 <4>[ 41.009557] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 41.017817] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 REE_PAGE # [ 36.266938] lkdtm: Attempting non-Slab slab free ... # SLAB_FREE_PAGE: missing 'call trace:': [FAIL] not ok 25 selftests: 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 # [ 36.522280] lkdtm: Performing direct entry EXEC_DATA # [ 36.533503] lkdtm: attempting ok execution at ffffffffb2b7ba20 # [ 36.546533] lkdtm: attempting bad execution at ffffffffb5c31d00 # [ 36.559648] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 36.574474] BUG: unable to handle page fault for address: ffffffffb5c31d00 # [ 36.582442] #PF: supervisor instruction fetch in kernel mode # [ 36.589069<6>[ 41.137850] lkdtm: Performing direct entry ACCESS_USERSPACE ] #PF: error_code(0x0011) - permissions violation # [ 36.5955<6>[ 41.144531] lkdtm: attempting bad read at 00007f69cfc69000 81] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 800000001ac000e3 <1>[ 41.157146] BUG: unable to handle page fault for address: 00007f69cfc69000 <1>[ 41.171326] #PF: supervisor read access in kernel mode <1>[ 41.177356] #PF: error_code(0x0001) - permissions violation # [ 36.603359] Oops: 0011 [#5] SMP PTI # [ 36.607540] CPU<6>[ 41.183868] PGD 8000000103ca8067 P4D 8000000103ca8067 PUD 1066ed067 PMD 106d6e067 PTE 107ba2067 <4>[ 41.200099] Oops: 0001 [#12] SMP PTI <4>[ 41.204381] CPU: 1 PID: 1833 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 41.213323] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 41.220422] RIP: 0010:lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 : 0 PID: 1575 Comm: cat Tainted: G D W 5.10.201-cip<4>[ 41.226937] Code: 00 00 00 75 64 48 83 c4 10 5d c3 cc cc cc cc 48 89 ee 48 c7 c7 e0 30 18 b4 e8 44 d8 fb ff 48 c7 c7 08 31 18 b4 b8 de c0 de c0 <48> 03 45 00 48 89 04 24 e8 2b d8 fb ff 48 89 ee 48 c7 c7 30 31 18 <4>[ 41.254419] RSP: 0018:ffffb83302607e48 EFLAGS: 00010246 <4>[ 41.260534] RAX: 00000000c0dec0de RBX: 0000000000000026 RCX: 0000000000000000 <4>[ 41.268795] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb4183108 <4>[ 41.277056] RBP: 00007f69cfc69000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 41.285314] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000011 <4>[ 41.293574] R13: ffffb83302607f10 R14: ffffb83302607f10 R15: ffff95e4c38ba000 <4>[ 41.301833] FS: 00007f69cfc3a580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 41.311171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 41.317877] CR2: 00007f69cfc69000 CR3: 000000010394a003 CR4: 00000000003706e0 <4>[ 41.326147] Call Trace: 40< #1 # [ 36.616480] Hardware name: Google Rammus/Rammus, BIO4>[ 41.329167] ? __die_body.cold+0x1a/0x1f <4>[ 41.340069] ? no_context+0x177/0x380 S 09/04/2020 # [ 36.623578] RIP: 0010:data_area+0x0/0x40 # <4>[ 41.344449] ? exc_page_fault+0x53/0x170 <4>[ 41.355326] ? asm_exc_page_fault+0x1e/0x30 <4>[ 41.360279] ? lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 [ 36.628251] Code: ff ff 00 12 8b c0 e4 95 ff ff 00 11 8b c0 e<4>[ 41.366113] ? lkdtm_ACCESS_USERSPACE.cold+0x35/0xa3 <4>[ 41.378157] direct_entry.cold+0x2c/0x38 <4>[ 41.382827] full_proxy_write+0x53/0x80 <4>[ 41.387401] vfs_write+0xe7/0x3b0 <4>[ 41.391392] ksys_write+0x68/0xf0 <4>[ 41.395380] do_syscall_64+0x30/0x40 <4>[ 41.399658] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 41.405588] RIP: 0033:0x7f69cfb50473 <4>[ 41.409858] 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>[ 41.431121] RSP: 002b:00007ffd3d85e698 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 41.439858] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007f69cfb50473 <4>[ 41.448118] RDX: 0000000000000011 RSI: 00007f69cfa44000 RDI: 0000000000000001 <4>[ 41.456376] RBP: 00007f69cfa44000 R08: 00007f69cfa43010 R09: 0000000000000000 <4>[ 41.464637] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 41.472897] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 4 95 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00<4>[ 41.481160] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 41.540109] CR2: 00007f69cfc69000 <4>[ 41.544087] ---[ end trace fd88bdcc3c2da48b ]--- <4>[ 41.549533] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 41.554201] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 41.575471] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 41.581594] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 41.589852] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 41.598112] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 41.606372] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 41.614630] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 41.622889] FS: 00007f69cfc3a580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 41.632215] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 41.638920] CR2: 00007f69cfc69000 CR3: 000000010394a003 CR4: 00000000003706e0 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 # [ 36.649514] RSP: 0018:ffffb833021e7e48 EFLAGS: 00010246 # [ 36.655637] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 # [ 36.663896] RDX: 0000000000000000 RSI: ffff95e53ac1bf50 RDI: ffff95e53ac1bf50 # [ 36.672154] RBP: ffffffffb5c31d00 R08: 0000000000000000 R09: 0000000000000000 # [ 36.680413] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a # [ 36.688673] R13: ffffb833021e7f10 R14: ffffb833021e7f10 R15: ffff95e4c6561000 # [ 36.696932] FS: 00007f42e04f1580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 # [ 36.706260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 36.712967] CR2: ffffffffb5c31d00 CR3: 0000000100fc0005 CR4: 00000000003706f0 # [ 36.721227] Call Trace: # [ 36.724247] ? __die_body.cold+0x1a/0x1f # [ 36.728921] ? no_context+0x177/0x380 # [ 36.733300] ? exc_page_fault+0xd7/0x170 # [ 36.737973] ? asm_exc_page_fault+0x1e/0x30 # [ 36.742936] ? execute_location+0x45/0x56 # [ 36.747696] ? direct_entry.cold+0x2c/0x38 # [ 36.752560] ? <6>[ 41.754845] lkdtm: Performing direct entry ACCESS_NULL full_proxy_write+0x53/0x80 # [ 36.757326] ? vfs_write+0xe7/0<6>[ 41.765084] lkdtm: attempting bad read at 0000000000000000 x3b0 # [ 36.761518] ? ksys_write+0x68/0xf0 # [ 36.765692]<1>[ 41.777720] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 41.791999] #PF: supervisor read access in kernel mode ? do_syscall_64+0x30/0x40 # [ 36.770157] ? entry_SYSCALL_6<1>[ 41.798027] #PF: error_code(0x0000) - not-present page <6>[ 41.810266] PGD 0 P4D 0 4_after_hwframe+0x62/0xc7 # [ 36.776283] Modules linked in: f<4>[ 41.813384] Oops: 0000 [#13] SMP PTI <4>[ 41.823877] CPU: 1 PID: 1869 Comm: cat Tainted: G D W 5.10.201-cip40 #1 use ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_<4>[ 41.832819] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 41.846130] RIP: 0010:lkdtm_ACCESS_NULL+0x14/0x53 core industrialio_triggered_buffer kfifo_buf industrialio snd_so<4>[ 41.851697] Code: e8 d7 fb ff be 00 10 00 00 48 89 ef e8 97 7b 0a ff e9 69 ff ff ff 0f 1f 44 00 00 53 31 f6 48 c7 c7 e0 30 18 b4 e8 c2 d7 fb ff <48> 8b 1c 25 00 00 00 00 b8 de c0 de c0 48 c7 c7 08 31 18 b4 48 01 <4>[ 41.879178] RSP: 0018:ffffb83302667e58 EFLAGS: 00010246 <4>[ 41.885300] RAX: 000000000000002e RBX: 0000000000000027 RCX: 0000000000000000 <4>[ 41.893560] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 41.901818] RBP: ffffffffb41821d1 R08: 0000000000000000 R09: 0000000000000000 <4>[ 41.910091] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c <4>[ 41.918354] R13: ffffb83302667f10 R14: ffffb83302667f10 R15: ffff95e4c58ae000 <4>[ 41.926613] FS: 00007f62f0d4c580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 41.935939] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 41.942643] CR2: 0000000000000000 CR3: 000000010266e003 CR4: 00000000003706e0 <4>[ 41.950902] Call Trace: <4>[ 41.953921] ? __die_body.cold+0x1a/0x1f c_da7219 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec<4>[ 41.958590] ? no_context+0x177/0x380 <4>[ 41.969181] ? exc_page_fault+0x53/0x170 _lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger u<4>[ 41.973850] ? asm_exc_page_fault+0x1e/0x30 <4>[ 41.985024] ? lkdtm_ACCESS_NULL+0x14/0x53 vcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_comp<4>[ 41.989888] ? lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 42.000961] direct_entry.cold+0x2c/0x38 <4>[ 42.005630] full_proxy_write+0x53/0x80 ress videobuf2_v4l2 gsmi x86_pkg_temp_thermal cros_ec_dev snd_pc<4>[ 42.010201] vfs_write+0xe7/0x3b0 <4>[ 42.020401] ksys_write+0x68/0xf0 <4>[ 42.024390] do_syscall_64+0x30/0x40 <4>[ 42.028668] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 42.034597] RIP: 0033:0x7f62f0c62473 <4>[ 42.038877] 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>[ 42.060147] RSP: 002b:00007ffd6f91c788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 42.068893] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f62f0c62473 <4>[ 42.077151] RDX: 000000000000000c RSI: 00007f62f0b56000 RDI: 0000000000000001 <4>[ 42.085410] RBP: 00007f62f0b56000 R08: 00007f62f0b55010 R09: 0000000000000000 <4>[ 42.093669] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 42.101927] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 m_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hi<4>[ 42.110188] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 42.169136] CR2: 0000000000000000 <4>[ 42.173123] ---[ end trace fd88bdcc3c2da48c ]--- <4>[ 42.178568] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 42.183227] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 42.204498] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 42.210630] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 42.218888] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 42.227146] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 42.235407] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 42.243666] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 42.251925] FS: 00007f62f0d4c580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 42.261252] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 42.267957] CR2: 0000000000000000 CR3: 000000010266e003 CR4: 00000000003706e0 <3>[ 42.276217] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 42.286417] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1869, name: cat <4>[ 42.295160] INFO: lockdep is turned off. <4>[ 42.299827] irq event stamp: 0 <4>[ 42.303522] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 42.310814] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 42.320238] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 42.329661] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 42.336951] CPU: 1 PID: 1869 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 42.345889] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 42.352984] Call Trace: <4>[ 42.356003] dump_stack+0x77/0x9b d coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 3<4>[ 42.359993] ___might_sleep.cold+0xa6/0xb6 <4>[ 42.371065] exit_signals+0x1c/0x300 <4>[ 42.375361] do_exit+0xc2/0xab0 <4>[ 42.379158] ? ksys_write+0x68/0xf0 <4>[ 42.383356] make_task_dead+0x2f/0x30 <4>[ 42.387734] rewind_stack_and_make_dead+0x17/0x20 <4>[ 42.393290] RIP: 0033:0x7f62f0c62473 <4>[ 42.397570] 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>[ 42.418830] RSP: 002b:00007ffd6f91c788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 42.427576] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f62f0c62473 <4>[ 42.435835] RDX: 000000000000000c RSI: 00007f62f0b56000 RDI: 0000000000000001 <4>[ 42.444093] RBP: 00007f62f0b56000 R08: 00007f62f0b55010 R09: 0000000000000000 <4>[ 42.452352] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 42.460610] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 6.829050] CR2: ffffffffb5c31d00 # [ 36.833037] ---[ end trace fd88bdcc3c2da484 ]--- # [ 36.838483] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 36.843152] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 36.864423] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 36.870547] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 36.878807] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 36.887068] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 36.895328] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 36.903587] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 36.911849] FS: 00007f42e04f1580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 # [ 36.921168] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 36.927874] CR2: ffffffffb5c31d00 CR3: 0000000100fc0005 CR4: 00000000003706f0 # [ 36.936135] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 36.946336] in_atomic(): <6>[ 42.585512] lkdtm: Performing direct entry WRITE_RO <6>[ 42.592697] lkdtm: attempting bad rodata write at ffffffffb3cf8530 <1>[ 42.599927] BUG: unable to handle page fault for address: ffffffffb3cf8530 <1>[ 42.607927] #PF: supervisor write access in kernel mode <1>[ 42.614053] #PF: error_code(0x0003) - permissions violation <6>[ 42.620564] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 8000000018c000e1 0, irqs_disabled(): 1, non_block: 0, pid: 1575, name: cat # [ <4>[ 42.628343] Oops: 0003 [#14] SMP PTI <4>[ 42.638835] CPU: 3 PID: 1905 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 42.647775] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 42.654874] RIP: 0010:lkdtm_WRITE_RO+0x2e/0x3a 36.955079] INFO: lockdep is turned off. # [ 36.959746] irq e<4>[ 42.660126] Code: 00 48 c7 c7 c0 2f 18 b4 48 c7 c6 30 85 cf b3 e8 6c da fb ff 48 8b 05 f1 9e a9 00 ba 34 12 cd ab 48 c7 c7 f0 2f 18 b4 48 31 d0 <48> 89 05 db 9e a9 00 e9 4a da fb ff 0f 1f 44 00 00 48 8b 05 ea bc <4>[ 42.687608] RSP: 0018:ffffb83302757e60 EFLAGS: 00010202 <4>[ 42.693722] RAX: 000000000198b861 RBX: 0000000000000028 RCX: 0000000000000000 <4>[ 42.701982] RDX: 00000000abcd1234 RSI: ffff95e53ad9bf50 RDI: ffffffffb4182ff0 <4>[ 42.710242] RBP: ffffffffb41821dd R08: 0000000000000000 R09: 0000000000000000 <4>[ 42.718499] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000009 <4>[ 42.726767] R13: ffffb83302757f10 R14: ffffb83302757f10 R15: ffff95e4c2c16000 <4>[ 42.735026] FS: 00007f283b426580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 42.744354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 42.751059] CR2: ffffffffb3cf8530 CR3: 0000000103ffc001 CR4: 00000000003706e0 <4>[ 42.759318] Call Trace: <4>[ 42.762337] ? __die_body.cold+0x1a/0x1f <4>[ 42.767008] ? no_context+0x177/0x380 <4>[ 42.771386] ? exc_page_fault+0xd7/0x170 <4>[ 42.776054] ? asm_exc_page_fault+0x1e/0x30 <4>[ 42.781008] ? lkdtm_WRITE_RO+0x2e/0x3a <4>[ 42.785578] direct_entry.cold+0x2c/0x38 <4>[ 42.790247] full_proxy_write+0x53/0x80 <4>[ 42.794819] vfs_write+0xe7/0x3b0 <4>[ 42.798807] ksys_write+0x68/0xf0 <4>[ 42.802795] do_syscall_64+0x30/0x40 <4>[ 42.807073] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 42.813003] RIP: 0033:0x7f283b33c473 <4>[ 42.817282] 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>[ 42.838545] RSP: 002b:00007ffea4a56138 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 42.847290] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f283b33c473 <4>[ 42.855564] RDX: 0000000000000009 RSI: 00007f283b230000 RDI: 0000000000000001 <4>[ 42.863825] RBP: 00007f283b230000 R08: 00007f283b22f010 R09: 0000000000000000 <4>[ 42.872082] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 42.880343] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 vent stamp: 0 # [ 36.963444] hardirqs last enabled at (0): [<4>[ 42.888606] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 42.947587] CR2: ffffffffb3cf8530 <4>[ 42.951574] ---[ end trace fd88bdcc3c2da48d ]--- <4>[ 42.957019] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 42.961685] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 42.982955] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 42.989080] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 42.997332] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 43.005590] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 43.013849] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 43.022109] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 43.030369] FS: 00007f283b426580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 43.039695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.046401] CR2: ffffffffb3cf8530 CR3: 0000000103ffc001 CR4: 00000000003706e0 <0000000000000000>] 0x0 # [ 36.970736] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 36.980162] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 36.989588] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 36.996877] CPU: 0 PID: 1575 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 37.005816] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 37.012910] Call Trace: # [ 37.015930] dump_stack+0x77/0x9b # [ 37.019926] ___might_sleep.cold+0xa6/0xb6 # [ 37.024792] exit_signals+0x1c/0x300 # [ 37.029074] do_exit+0xc2/0xab0 # [ 37.032868] ? ksys_write+0x68/0xf0 # [ 37.037052] make_task_dead+0x2f/0x30 # [ 37.041429] rewind_stack_and_make_dead+0x17/0x20 # [ 37.046972] RIP: 0033:0x7f42e0407473 # [ 37.051249] 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 # [ 37.072523] RSP: 002b:00007ffc3c4be858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 37.081269] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f42e0407473 # [ 37.089528] RDX: 000000000000000a RSI: 00007f42e02fb000 RDI: 0000000000000001 # [ 37.097788] RBP: 00007f42e02fb000 R08: 00007f42e02fa010 R09: 0000000000000000 # [ 37.106047] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 37.114307] 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 # [ 37.230486] lkdtm: Performing direct e<6>[ 43.220928] lkdtm: Performing direct entry WRITE_RO_AFTER_INIT <6>[ 43.229314] lkdtm: attempting bad ro_after_init write at ffffffffb420a350 <1>[ 43.237225] BUG: unable to handle page fault for address: ffffffffb420a350 <1>[ 43.245225] #PF: supervisor write access in kernel mode <1>[ 43.251351] #PF: error_code(0x0003) - permissions violation <6>[ 43.257853] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 1052b2063 PTE 800000001920a061 <4>[ 43.266894] Oops: 0003 [#15] SMP PTI <4>[ 43.271173] CPU: 3 PID: 1941 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 43.280113] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 43.287212] RIP: 0010:lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a <4>[ 43.293529] Code: 30 18 b4 e9 1e da fb ff 48 c7 c7 48 30 18 b4 e8 12 da fb ff 48 8b 05 b7 bc fa 00 ba 34 12 cd ab 48 c7 c7 f0 2f 18 b4 48 31 d0 <48> 89 05 a1 bc fa 00 e9 f0 d9 fb ff 0f 1f 44 00 00 41 54 48 c7 c7 <4>[ 43.314802] RSP: 0018:ffffb833027f7e60 EFLAGS: 00010202 <4>[ 43.320918] RAX: 00000000fe67479e RBX: 0000000000000029 RCX: 0000000000000000 <4>[ 43.329199] RDX: 00000000abcd1234 RSI: ffff95e53ad9bf50 RDI: ffffffffb4182ff0 <4>[ 43.337457] RBP: ffffffffb41821e6 R08: 0000000000000000 R09: 0000000000000000 <4>[ 43.345716] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000014 <4>[ 43.353976] R13: ffffb833027f7f10 R14: ffffb833027f7f10 R15: ffff95e4c6515000 <4>[ 43.362236] FS: 00007fd20d86b580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 43.371566] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.378264] CR2: ffffffffb420a350 CR3: 0000000102c6c006 CR4: 00000000003706e0 <4>[ 43.386523] Call Trace: <4>[ 43.389542] ? __die_body.cold+0x1a/0x1f <4>[ 43.394212] ? no_context+0x177/0x380 <4>[ 43.398590] ? exc_page_fault+0xd7/0x170 <4>[ 43.403257] ? asm_exc_page_fault+0x1e/0x30 <4>[ 43.408219] ? lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a <4>[ 43.413858] direct_entry.cold+0x2c/0x38 <4>[ 43.418526] full_proxy_write+0x53/0x80 <4>[ 43.423096] vfs_write+0xe7/0x3b0 <4>[ 43.427077] ksys_write+0x68/0xf0 <4>[ 43.431065] do_syscall_64+0x30/0x40 <4>[ 43.435343] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 43.441273] RIP: 0033:0x7fd20d781473 <4>[ 43.445552] 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>[ 43.466814] RSP: 002b:00007ffdd9e86e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 43.475559] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007fd20d781473 <4>[ 43.483818] RDX: 0000000000000014 RSI: 00007fd20d675000 RDI: 0000000000000001 <4>[ 43.492076] RBP: 00007fd20d675000 R08: 00007fd20d674010 R09: 0000000000000000 <4>[ 43.500335] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 43.508594] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ntry EXEC_STACK # [ 37.240397] lkdtm: attempting ok execution<4>[ 43.516857] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 43.575841] CR2: ffffffffb420a350 <4>[ 43.579829] ---[ end trace fd88bdcc3c2da48e ]--- <4>[ 43.585275] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 43.589933] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 43.611205] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 43.617329] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 43.625588] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 43.633845] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 43.642105] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 43.650365] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 43.658624] FS: 00007fd20d86b580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 43.667953] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.674659] CR2: ffffffffb420a350 CR3: 0000000102c6c006 CR4: 00000000003706e0 <3>[ 43.682919] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 43.693112] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1941, name: cat <4>[ 43.701856] INFO: lockdep is turned off. <4>[ 43.706523] irq event stamp: 0 <4>[ 43.710218] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 43.717509] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 43.726934] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 43.736358] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 43.743647] CPU: 3 PID: 1941 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 43.752584] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 43.759678] Call Trace: <4>[ 43.762695] dump_stack+0x77/0x9b <4>[ 43.766683] ___might_sleep.cold+0xa6/0xb6 <4>[ 43.771537] exit_signals+0x1c/0x300 <4>[ 43.775816] do_exit+0xc2/0xab0 <4>[ 43.779611] ? ksys_write+0x68/0xf0 <4>[ 43.783794] make_task_dead+0x2f/0x30 <4>[ 43.788169] rewind_stack_and_make_dead+0x17/0x20 <4>[ 43.793710] RIP: 0033:0x7fd20d781473 <4>[ 43.797990] 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>[ 43.819260] RSP: 002b:00007ffdd9e86e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 43.828004] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007fd20d781473 <4>[ 43.836265] RDX: 0000000000000014 RSI: 00007fd20d675000 RDI: 0000000000000001 <4>[ 43.844524] RBP: 00007fd20d675000 R08: 00007fd20d674010 R09: 0000000000000000 <4>[ 43.852784] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 43.861043] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 at ffffffffb2b7ba20 # [ 37.247231] lkdtm: attempting bad execution at ffffb83302297e18 # [ 37.254157] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 37.262815] BUG: unable to handle page fault for address: ffffb83302297e18 # [ 37.270775] #PF: supervisor instruction fetch in kernel mode # [ 37.277384] #PF: error_code(0x0011) - permissions violation # [ 37.283896] PGD 100000067 P4D 100000067 PUD 100244067 PMD 10409c067 PTE 8000000103d01063 # [ 37.293230] Oops: 0011 [#6] SMP PTI # [ 37.297405] CPU: 3 PID: 1612 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 37.306345] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 37.313442] RIP: 0010:0xffffb83302297e18 # [ 37.318108] Code: 00 00 18 7e 29 02 33 b8 ff ff 0f e6 25 b3 ff ff ff ff 20 00 00 00 00 00 00 00 76 21 18 b4 ff ff ff ff 3e e7 25 b3 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 # [ 37.339383] RSP: 0018:ffffb83302297df8 EFLAGS: 00010246 # [ 37.345508] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 # [ 37.353768] RDX: 0000000000000000 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 # [ 37.362027] RBP: ffffb83302297e18 R08: 0000000000000000 R09: 0000000000000000 # [ 3<6>[ 43.988903] lkdtm: Performing direct entry WRITE_KERN 7.370289] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000<6>[ 43.999582] lkdtm: attempting bad 7220121 byte write at ffffffffb325e5b9 0000000000b # [ 37.378541] R13: ffffb83302297f10 R14: ffffb83<1>[ 44.013581] BUG: unable to handle page fault for address: ffffffffb325e5b9 <1>[ 44.027756] #PF: supervisor write access in kernel mode <1>[ 44.033882] #PF: error_code(0x0003) - permissions violation <6>[ 44.040385] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 182000e1 302297f10 R15: ffff95e4c3cb2000 # [ 37.386838] FS: 00007fbd1<4>[ 44.047387] Oops: 0003 [#16] SMP PTI <4>[ 44.057880] CPU: 1 PID: 1977 Comm: cat Tainted: G D W 5.10.201-cip40 #1 255a580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 44.066821] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 44.080134] RIP: 0010:lkdtm_WRITE_KERN+0x38/0x4e # [ 37.396166] CS: 0010 DS: 0000 ES: 0000 CR0: 00000000800500<4>[ 44.085579] Code: 53 48 c7 c3 b9 e5 25 b3 49 89 dc 48 89 da 49 81 ec 20 ba b7 b2 4c 89 e6 e8 c5 d9 fb ff 48 89 df 4c 89 e1 48 c7 c6 20 ba b7 b2 a4 48 c7 c7 f0 2f 18 b4 e8 aa d9 fb ff 5b 41 5c e9 b7 fe ff ff <4>[ 44.113062] RSP: 0018:ffffb83302867e50 EFLAGS: 00010246 <4>[ 44.119177] RAX: 000000000000003c RBX: ffffffffb325e5b9 RCX: 00000000006e2b99 <4>[ 44.127435] RDX: 0000000000000000 RSI: ffffffffb2b7ba20 RDI: ffffffffb325e5b9 <4>[ 44.135694] RBP: ffffffffb41821fa R08: 0000000000000000 R09: 0000000000000000 <4>[ 44.143952] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000000006e2b99 <4>[ 44.152210] R13: ffffb83302867f10 R14: ffffb83302867f10 R15: ffff95e4c4842000 <4>[ 44.160469] FS: 00007fca9c604580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 44.169800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 44.176506] CR2: ffffffffb325e5b9 CR3: 00000001047ae001 CR4: 00000000003706e0 <4>[ 44.184785] Call Trace: <4>[ 44.187805] ? __die_body.cold+0x1a/0x1f 33 # [ 37.402873] CR2: ffffb83302297e18 CR3: 0000000103874002<4>[ 44.192475] ? no_context+0x177/0x380 <4>[ 44.203063] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 44.208805] ? exc_page_fault+0xd7/0x170 <4>[ 44.213472] ? asm_exc_page_fault+0x1e/0x30 <4>[ 44.218431] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 44.224159] ? lkdtm_SLAB_FREE_PAGE+0x40/0x40 CR4: 00000000003706e0 # [ 37.411132] Call Trace: # [ 37.4<4>[ 44.229312] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 44.241262] ? lkdtm_WRITE_KERN+0x38/0x4e <4>[ 44.246027] direct_entry.cold+0x2c/0x38 <4>[ 44.250709] full_proxy_write+0x53/0x80 14152] ? __die_body.cold+0x1a/0x1f # [ 37.418822] ? no_cont<4>[ 44.255282] vfs_write+0xe7/0x3b0 <4>[ 44.265481] ksys_write+0x68/0xf0 <4>[ 44.269470] do_syscall_64+0x30/0x40 <4>[ 44.273747] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 44.279677] RIP: 0033:0x7fca9c51a473 <4>[ 44.283955] 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>[ 44.305226] RSP: 002b:00007fff2b9f6688 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 44.313962] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007fca9c51a473 <4>[ 44.322220] RDX: 000000000000000b RSI: 00007fca9c40e000 RDI: 0000000000000001 <4>[ 44.330479] RBP: 00007fca9c40e000 R08: 00007fca9c40d010 R09: 0000000000000000 <4>[ 44.338737] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 44.346996] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ext+0x177/0x380 # [ 37.423202] ? exc_page_fault+0xd7/0x170 <4>[ 44.355258] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 44.414208] CR2: ffffffffb325e5b9 <4>[ 44.418197] ---[ end trace fd88bdcc3c2da48f ]--- <4>[ 44.423640] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 44.428308] Code: 89 ff e8 2e db 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 60 66 0b 03 <4>[ 44.449570] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 <4>[ 44.455685] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 44.463943] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 <4>[ 44.472203] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 <4>[ 44.480480] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 44.488730] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 <4>[ 44.496991] FS: 00007fca9c604580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 44.506309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 44.513015] CR2: ffffffffb325e5b9 CR3: 00000001047ae001 CR4: 00000000003706e0 # [ 37.427870] ? asm_exc_page_fault+0x1e/0x30 # [ 37.432824] ? execute_location+0x45/0x56 # [ 37.437586] ? lkdtm_EXEC_STACK+0x26/0x44 # [ 37.442353] ? direct_entry.cold+0x2c/0x38 # [ 37.447261] ? full_proxy_write+0x53/0x80 # [ 37.452027] ? vfs_write+0xe7/0x3b0 # [ 37.456210] ? ksys_write+0x68/0xf0 # [ 37.460394] ? do_syscall_64+0x30/0x40 # [ 37.464868] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 37.470994] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 37.529981] CR2: ffffb83302297e18 # [ 37.533968] ---[ end trace fd88bdcc3c2da485 ]--- # [ 37.539413] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 37.544072] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 37.565341] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 37.571463] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 00000000<6>[ 44.661949] lkdtm: Performing direct entry REFCOUNT_INC_OVERFLOW 00000000 # [ 37.579721] RDX: 0000000000000000 RSI: ffff95e53a<6>[ 44.671423] lkdtm: attempting good refcount_inc() without overflow c9bf50 RDI: ffffffffb3cf80b0 # [ 37.587980] RBP: ffffffffb41e<6>[ 44.684838] lkdtm: attempting bad refcount_inc() overflow <4>[ 44.697369] ------------[ cut here ]------------ <4>[ 44.702818] refcount_t: saturated; leaking memory. 8318 R08: 0000000000000001 R09: 0000000000000001 # [ 37.59623<4>[ 44.708491] WARNING: CPU: 1 PID: 2013 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 9] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000<4>[ 44.724391] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 44.783365] CPU: 1 PID: 2013 Comm: cat Tainted: G D W 5.10.201-cip40 #1 0004 # [ 37.604498] R13: ffffb8330138ff10 R14: ffffb8330138ff<4>[ 44.792309] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 10 R15: ffff95e4c29bd000 # [ 37.612757] FS: 00007fbd1255a580<4>[ 44.805617] RIP: 0010:refcount_warn_saturate+0x51/0x110 (0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 3<4>[ 44.817960] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d 7.622085] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [<4>[ 44.845448] RSP: 0018:ffffb83302907e48 EFLAGS: 00010286 37.628793] CR2: ffffb83302297e18 CR3: 0000000103874002 CR4: 0<4>[ 44.857792] RAX: 0000000000000000 RBX: 000000000000002b RCX: 0000000000000000 <4>[ 44.872270] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 0000000003706e0 # EXEC_STACK: saw 'call trace:': ok ok 31 self<4>[ 44.880535] RBP: ffffffffb4182205 R08: 0000000000000000 R09: 0000000000000000 <4>[ 44.895007] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 tests: lkdtm: EXEC_STACK.sh # selftests: lkdtm: EXEC_KMALLOC.sh<4>[ 44.903273] R13: ffffb83302907f10 R14: ffffb83302907f10 R15: ffff95e4c5bfa000 # Killed # [ 37.771363] lkdtm: Performing direct entry EXEC<4>[ 44.917747] FS: 00007faaae5e2580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 _KMALLOC # [ 37.779917] lkdtm: attempting ok execution at fff<4>[ 44.933295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 fffffb2b7ba20 # [ 37.792942] lkdtm: attempting bad execution <4>[ 44.946223] CR2: 00007faaae3ec000 CR3: 0000000103956001 CR4: 00000000003706e0 <4>[ 44.960702] Call Trace: at ffff95e4c6d4a440 # [ 37.806063] kernel tried to execute NX<4>[ 44.963729] ? __warn+0x80/0x110 -protected page - exploit attempt? (uid: 0) # [ 37.820926] BU<4>[ 44.973832] ? refcount_warn_saturate+0x51/0x110 G: unable to handle page fault for address: ffff95e4c6d4a440 # <4>[ 44.985495] ? report_bug+0x9e/0xc0 [ 37.828897] #PF: supervisor instruction fetch in kernel mode <4>[ 44.995901] ? handle_bug+0x41/0x90 # [ 37.841722] #PF: error_code(0x0011) - permissions violatio<4>[ 45.006296] ? exc_invalid_op+0x14/0x70 n # [ 37.848235] PGD 1ae01067 P4D 1ae01067 PUD 100874063 PMD <4>[ 45.017084] ? asm_exc_invalid_op+0x12/0x20 106c96063 PTE 8000000106d4a063 # [ 37.857374] Oops: 0011 [#7]<4>[ 45.028272] ? refcount_warn_saturate+0x51/0x110 SMP PTI # [ 37.867767] CPU: 1 PID: 1649 Comm: cat Tainted: G<4>[ 45.039924] ? refcount_warn_saturate+0x51/0x110 D W 5.10.201-cip40 #1 # [ 37.876706] Hardware n<4>[ 45.051582] lkdtm_REFCOUNT_INC_OVERFLOW+0x70/0x98 ame: Google Rammus/Rammus, BIOS 09/04/2020 # [ 37.883801] RI<4>[ 45.063437] direct_entry.cold+0x2c/0x38 P: 0010:0xffff95e4c6d4a440 # [ 37.888469] Code: ad de c0 b3 e<4>[ 45.074323] full_proxy_write+0x53/0x80 4 c6 e4 95 ff ff 40 a5 d4 c6 e4 95 ff ff 00 00 00 00 00 00 00 00<4>[ 45.085111] vfs_write+0xe7/0x3b0 00 00 00 00 40 00 38 00 09 00 40 00 18 00 17 00 <0f> 1f 44 00 0<4>[ 45.095313] ksys_write+0x68/0xf0 0 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 # [ 37.9<4>[ 45.105518] do_syscall_64+0x30/0x40 09738] RSP: 0018:ffffb8330231fe38 EFLAGS: 00010246 # [ 37.915<4>[ 45.116014] entry_SYSCALL_64_after_hwframe+0x62/0xc7 877] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000<4>[ 45.128161] RIP: 0033:0x7faaae4f8473 000000 # [ 37.924136] RDX: 0000000000000000 RSI: ffff95e53ac9<4>[ 45.138679] 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 bf50 RDI: ffff95e53ac9bf50 # [ 37.932395] RBP: ffff95e4c6d4a4<4>[ 45.166166] RSP: 002b:00007ffda9c68658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 40 R08: 0000000000000000 R09: 0000000000000000 # [ 37.940656]<4>[ 45.181129] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007faaae4f8473 R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000000000000<4>[ 45.195621] RDX: 0000000000000016 RSI: 00007faaae3ec000 RDI: 0000000000000001 0d # [ 37.948916] R13: ffffb8330231ff10 R14: ffffb8330231ff10<4>[ 45.210098] RBP: 00007faaae3ec000 R08: 00007faaae3eb010 R09: 0000000000000000 R15: ffff95e4c2c15000 # [ 37.957177] FS: 00007f2e705bc580(0<4>[ 45.224593] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 37.<4>[ 45.239069] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 966504] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ <4>[ 45.253554] irq event stamp: 0 37.973210] CR2: ffff95e4c6d4a440 CR3: 0000000104806003 CR4: 000<4>[ 45.263463] hardirqs last enabled at (0): [<0000000000000000>] 0x0 00000003706e0 # [ 37.981471] Call Trace: # [ 37.984491] ?<4>[ 45.276971] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 __die_body.cold+0x1a/0x1f # [ 37.995375] ? no_context+0x177<4>[ 45.292614] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 /0x380 # [ 37.999755] ? exc_page_fault+0xd7/0x170 # [ 38.<4>[ 45.308255] softirqs last disabled at (0): [<0000000000000000>] 0x0 004425] ? asm_exc_page_fault+0x1e/0x30 # [ 38.015615] ? exe<4>[ 45.321762] ---[ end trace fd88bdcc3c2da490 ]--- cute_location+0x45/0x56 # [ 38.026596] ? lkdtm_EXEC_KMALLOC+<6>[ 45.333424] lkdtm: Overflow detected: saturated 0x2c/0x40 # [ 38.031566] ? direct_entry.cold+0x2c/0x38 # [ 38.036430] ? full_proxy_write+0x53/0x80 # [ 38.041197] ? vfs_write+0xe7/0x3b0 # [ 38.045372] ? ksys_write+0x68/0xf0 # [ 38.049567] ? do_syscall_64+0x30/0x40 # [ 38.054047] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 38.066386] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 38.125333] CR2: ffff95e4c6d4a440 # [ 38.129322] ---[ end trace fd88bdcc3c2da486 ]--- # [ 38.134767] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 38.139434] Code: 89 ff e8 2e db 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 <6>[ 45.454667] lkdtm: Performing direct entry REFCOUNT_ADD_OVERFLOW <6>[ 45.463863] lkdtm: attempting good refcount_add() without overflow <6>[ 45.471092] lkdtm: attempting bad refcount_add() overflow <4>[ 45.477416] ------------[ cut here ]------------ <4>[ 45.482863] refcount_t: saturated; leaking memory. <4>[ 45.488531] WARNING: CPU: 2 PID: 2046 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 00 00 00 00 00 0f 1f 44 00 00 83 05 60 66 0b 03 # [ 38.160705<4>[ 45.498256] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 45.557204] CPU: 2 PID: 2046 Comm: cat Tainted: G D W 5.10.201-cip40 #1 ] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 38.166828] <4>[ 45.566177] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 45.579492] RIP: 0010:refcount_warn_saturate+0x51/0x110 <4>[ 45.585649] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d <4>[ 45.606922] RSP: 0018:ffffb8330297fe48 EFLAGS: 00010286 <4>[ 45.613052] RAX: 0000000000000000 RBX: 000000000000002c RCX: 0000000000000000 <4>[ 45.621314] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 <4>[ 45.629576] RBP: ffffffffb418221b R08: 0000000000000000 R09: 0000000000000000 <4>[ 45.637839] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 <4>[ 45.646099] R13: ffffb8330297ff10 R14: ffffb8330297ff10 R15: ffff95e4c3978000 <4>[ 45.654352] FS: 00007fb6bc9bb580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 45.663681] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 45.670389] CR2: 00007fb6bc7c5000 CR3: 0000000103b50006 CR4: 00000000003706e0 <4>[ 45.678650] Call Trace: <4>[ 45.681671] ? __warn+0x80/0x110 <4>[ 45.685585] ? refcount_warn_saturate+0x51/0x110 <4>[ 45.691033] ? report_bug+0x9e/0xc0 <4>[ 45.695220] ? handle_bug+0x41/0x90 <4>[ 45.699427] ? exc_invalid_op+0x14/0x70 <4>[ 45.704002] ? asm_exc_invalid_op+0x12/0x20 <4>[ 45.708965] ? refcount_warn_saturate+0x51/0x110 <4>[ 45.714437] ? refcount_warn_saturate+0x51/0x110 <4>[ 45.719883] lkdtm_REFCOUNT_ADD_OVERFLOW+0x7f/0xa7 <4>[ 45.725525] direct_entry.cold+0x2c/0x38 <4>[ 45.730196] full_proxy_write+0x53/0x80 <4>[ 45.734793] vfs_write+0xe7/0x3b0 <4>[ 45.738809] ksys_write+0x68/0xf0 <4>[ 45.742800] do_syscall_64+0x30/0x40 <4>[ 45.747092] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 45.753024] RIP: 0033:0x7fb6bc8d1473 <4>[ 45.757305] 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>[ 45.778579] RSP: 002b:00007ffec1be2ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 45.787326] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fb6bc8d1473 <4>[ 45.795586] RDX: 0000000000000016 RSI: 00007fb6bc7c5000 RDI: 0000000000000001 <4>[ 45.803838] RBP: 00007fb6bc7c5000 R08: 00007fb6bc7c4010 R09: 0000000000000000 <4>[ 45.812101] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 45.820361] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 45.828628] irq event stamp: 0 RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 000000000000000<4>[ 45.832355] hardirqs last enabled at (0): [<0000000000000000>] 0x0 0 # [ 38.175088] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 <4>[ 45.845863] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 45.861506] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 45.870947] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 45.878270] ---[ end trace fd88bdcc3c2da491 ]--- <6>[ 45.883717] lkdtm: Overflow detected: saturated RDI: ffffffffb3cf80b0 # [ 38.183346] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 38.191605] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 38.199864] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 38.208125] FS: 00007f2e705bc580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 38.217453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.224159] CR2: ffff95e4c6d4a440 CR3: 0000000104806003 CR4: 00000000003706e0 # [ 38.232419] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 38.242612] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1649, name: cat # [ 38.251357] INFO: lockdep is turned off. # [ 38.256023] irq event stamp: 0 # [ 38.259720] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 38.267009] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 38.276436] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 38.285877] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 38.2931<6>[ 45.997453] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_OVERFLOW 73] CPU: 1 PID: 1649 Comm: cat Tainted: G D W 5.10.<6>[ 46.008857] lkdtm: attempting bad refcount_inc_not_zero() overflow 201-cip40 #1 # [ 38.308325] Hardware name: Google Rammus/Ramm<4>[ 46.022285] ------------[ cut here ]------------ us, BIOS 09/04/2020 # [ 38.315418] Call Trace: # [ 38.318<4>[ 46.033943] refcount_t: saturated; leaking memory. 436] dump_stack+0x77/0x9b # [ 38.322427] ___might_sleep.col<4>[ 46.045843] WARNING: CPU: 0 PID: 2079 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 d+0xa6/0xb6 # [ 38.333504] exit_signals+0x1c/0x300 # [ 38<4>[ 46.061741] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 .337798] do_exit+0xc2/0xab0 # [ 38.341600] ? ksys_write+0x6<4>[ 46.120701] CPU: 0 PID: 2079 Comm: cat Tainted: G D W 5.10.201-cip40 #1 8/0xf0 # [ 38.351994] make_task_dead+0x2f/0x30 # [ 38.356<4>[ 46.135866] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 371] rewind_stack_and_make_dead+0x17/0x20 # [ 38.361912] RIP<4>[ 46.149186] RIP: 0010:refcount_warn_saturate+0x97/0x110 : 0033:0x7f2e704d2473 # [ 38.366191] Code: 8b 15 21 2a 0e 00 <4>[ 46.161589] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 1<4>[ 46.189039] RSP: 0018:ffffb83302a0fe38 EFLAGS: 00010282 8 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff <4>[ 46.201414] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 38.387452<4>[ 46.215871] RDX: ffff95e53ac2c620 RSI: ffff95e53ac1bf50 RDI: ffff95e53ac1bf50 ] RSP: 002b:00007ffc36336238 EFLAGS: 00000246 ORIG_RAX: 00000000<4>[ 46.230369] RBP: ffffffffb4181e58 R08: 0000000000000000 R09: 0000000000000000 00000001 # [ 38.396196] RAX: ffffffffffffffda RBX: 0000000000<4>[ 46.244830] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f 00000d RCX: 00007f2e704d2473 # [ 38.404456] RDX: 000000000000<4>[ 46.259319] R13: ffffb83302a0ff10 R14: ffffb83302a0ff10 R15: ffff95e4c59d1000 000d RSI: 00007f2e703c6000 RDI: 0000000000000001 # [ 38.41271<4>[ 46.273787] FS: 00007f20c12da580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 4] RBP: 00007f2e703c6000 R08: 00007f2e703c5010 R09: 000000000000<4>[ 46.289333] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 0000 # [ 38.420972] R10: fffffffffffffbc5 R11: 00000000000002<4>[ 46.302262] CR2: 00007f20c10e4000 CR3: 0000000105362006 CR4: 00000000003706f0 46 R12: 0000000000000001 # [ 38.429232] R13: 0000000000000001<4>[ 46.316750] Call Trace: R14: 0000000000020000 R15: 0000000000020000 # EXEC_KMALLOC: sa<4>[ 46.325979] ? __warn+0x80/0x110 w 'call trace:': ok ok 32 selftests: lkdtm: EXEC_KMALLOC.sh # <4>[ 46.336095] ? refcount_warn_saturate+0x97/0x110 selftests: lkdtm: EXEC_VMALLOC.sh # Killed # [ 38.545573] lk<4>[ 46.347751] ? report_bug+0x9e/0xc0 dtm: Performing direct entry EXEC_VMALLOC # [ 38.555518] lkdt<4>[ 46.358183] ? handle_bug+0x41/0x90 m: attempting ok execution at ffffffffb2b7ba20 # [ 38.562338]<4>[ 46.368550] ? exc_invalid_op+0x14/0x70 lkdtm: attempting bad execution at ffffb83300385000 # [ 38.5<4>[ 46.379352] ? asm_exc_invalid_op+0x12/0x20 75473] kernel tried to execute NX-protected page - exploit attem<4>[ 46.390524] ? refcount_warn_saturate+0x97/0x110 pt? (uid: 0) # [ 38.584121] BUG: unable to handle page fault <4>[ 46.402214] ? refcount_warn_saturate+0x97/0x110 for address: ffffb83300385000 # [ 38.598309] #PF: supervisor <4>[ 46.413849] __refcount_add_not_zero.constprop.0+0x2a/0x35 instruction fetch in kernel mode # [ 38.604920] #PF: error_co<4>[ 46.426492] lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW+0x3e/0x76 de(0x0011) - permissions violation # [ 38.617649] PGD 1000000<4>[ 46.439218] direct_entry.cold+0x2c/0x38 67 P4D 100000067 PUD 100244067 PMD 1009c0067 PTE 800000010486006<4>[ 46.450136] full_proxy_write+0x53/0x80 3 # [ 38.633197] Oops: 0011 [#8] SMP PTI # [ 38.637381] CP<4>[ 46.460894] vfs_write+0xe7/0x3b0 U: 3 PID: 1686 Comm: cat Tainted: G D W 5.10.201-ci<4>[ 46.471112] ksys_write+0x68/0xf0 p40 #1 # [ 38.652536] Hardware name: Google Rammus/Rammus, BI<4>[ 46.481303] do_syscall_64+0x30/0x40 OS 09/04/2020 # [ 38.659622] RIP: 0010:0xffffb83300385000 #<4>[ 46.491848] entry_SYSCALL_64_after_hwframe+0x62/0xc7 [ 38.664283] Code: Unable to access opcode bytes at RIP 0xfff<4>[ 46.503975] RIP: 0033:0x7f20c11f0473 fb83300384fd6. # [ 38.672243] RSP: 0018:ffffb8330235fe38 EFLA<4>[ 46.514460] 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 GS: 00010246 # [ 38.678368] RAX: 0000000000000033 RBX: 000000<4>[ 46.541945] RSP: 002b:00007ffd007bfa48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 0000000001 RCX: 0000000000000000 # [ 38.686628] RDX: 00000000<4>[ 46.556901] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f20c11f0473 00000000 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 # [ 38.6<4>[ 46.571374] RDX: 000000000000001f RSI: 00007f20c10e4000 RDI: 0000000000000001 94888] RBP: ffffb83300385000 R08: 0000000000000000 R09: 00000000<4>[ 46.585860] RBP: 00007f20c10e4000 R08: 00007f20c10e3010 R09: 0000000000000000 00000000 # [ 38.703146] R10: 00000000ffffe000 R11: 3fffffffff<4>[ 46.600319] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 ffffff R12: 000000000000000d # [ 38.711406] R13: ffffb8330235<4>[ 46.614797] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ff10 R14: ffffb8330235ff10 R15: ffff95e4c4860000 # [ 38.71966<4>[ 46.629324] irq event stamp: 0 5] FS: 00007f9590d74580(0000) GS:ffff95e53ad80000(0000) knlGS:0<4>[ 46.639269] hardirqs last enabled at (0): [<0000000000000000>] 0x0 000000000000000 # [ 38.728992] CS: 0010 DS: 0000 ES: 0000 CR<4>[ 46.652768] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 0: 0000000080050033 # [ 38.735699] CR2: ffffb83300384fd6 CR3:<4>[ 46.668393] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 0000000105b12002 CR4: 00000000003706e0 # [ 38.743958] Call T<4>[ 46.684075] softirqs last disabled at (0): [<0000000000000000>] 0x0 race: # [ 38.746979] ? __die_body.cold+0x1a/0x1f # [ 38.7<4>[ 46.697568] ---[ end trace fd88bdcc3c2da492 ]--- 51649] ? no_context+0x177/0x380 # [ 38.756028] ? exc_page_f<6>[ 46.709230] lkdtm: Overflow detected: saturated ault+0xd7/0x170 # [ 38.760695] ? asm_exc_page_fault+0x1e/0x30 # [ 38.765663] ? execute_location+0x45/0x56 # [ 38.770430] ? lkdtm_EXEC_VMALLOC+0x20/0x30 # [ 38.775388] ? direct_entry.cold+0x2c/0x38 # [ 38.780250] ? full_proxy_write+0x53/0x80 # [ 38.785007] ? vfs_write+0xe7/0x3b0 # [ 38.789189] ? ksys_write+0x68/0xf0 # [ 38.793372] ? do_syscall_64+0x30/0x40 # [ 38.797844] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 38.803971] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 38.862961] CR2: ffffb83300385000 # [ 38.866950] ---[ end trace fd88bdcc3c2da487 ]--- # [ 38.872394] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 38.877061] Code: 89 ff e8 2e db 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 <6>[ 46.843502] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_OVERFLOW <6>[ 46.853017] lkdtm: attempting bad refcount_add_not_zero() overflow <4>[ 46.860252] ------------[ cut here ]------------ 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 60<4>[ 46.865724] refcount_t: saturated; leaking memory. 66 0b 03 # [ 38.898335] RSP: 0018:ffffb8330138fe60 EFLAGS: 0<4>[ 46.877601] WARNING: CPU: 2 PID: 2112 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 0010286 # [ 38.904450] RAX: ffffffffb2b7b650 RBX: 00000000000<4>[ 46.893517] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 46.952492] CPU: 2 PID: 2112 Comm: cat Tainted: G D W 5.10.201-cip40 #1 00001 RCX: 0000000000000000 # [ 38.912709] RDX: 0000000000000<4>[ 46.961447] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 46.974754] RIP: 0010:refcount_warn_saturate+0x97/0x110 000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 38.920969<4>[ 46.980896] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d <4>[ 47.008385] RSP: 0018:ffffb83302acfe38 EFLAGS: 00010282 <4>[ 47.014512] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 <4>[ 47.022774] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 <4>[ 47.031036] RBP: ffffffffb4181e78 R08: 0000000000000000 R09: 0000000000000000 <4>[ 47.039298] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f <4>[ 47.047559] R13: ffffb83302acff10 R14: ffffb83302acff10 R15: ffff95e4c5938000 <4>[ 47.055836] FS: 00007fd2cdb8a580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 ] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000<4>[ 47.065169] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 47.078088] CR2: 00007fd2cd994000 CR3: 0000000106672005 CR4: 00000000003706e0 <4>[ 47.086349] Call Trace: <4>[ 47.089362] ? __warn+0x80/0x110 <4>[ 47.093284] ? refcount_warn_saturate+0x97/0x110 <4>[ 47.098732] ? report_bug+0x9e/0xc0 <4>[ 47.102918] ? handle_bug+0x41/0x90 <4>[ 47.107127] ? exc_invalid_op+0x14/0x70 <4>[ 47.111701] ? asm_exc_invalid_op+0x12/0x20 <4>[ 47.116664] ? refcount_warn_saturate+0x97/0x110 <4>[ 47.122132] ? refcount_warn_saturate+0x97/0x110 <4>[ 47.127580] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 47.133999] lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW+0x3e/0x76 <4>[ 47.140513] direct_entry.cold+0x2c/0x38 <4>[ 47.145185] full_proxy_write+0x53/0x80 001 # [ 38.929229] R10: 00000000ffffe000 R11: 3ffffffffffffff<4>[ 47.149763] vfs_write+0xe7/0x3b0 <4>[ 47.159966] ksys_write+0x68/0xf0 f R12: 0000000000000004 # [ 38.937490] R13: ffffb8330138ff10 <4>[ 47.163960] do_syscall_64+0x30/0x40 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 38.945751] FS<4>[ 47.174455] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 47.186604] RIP: 0033:0x7fd2cdaa0473 <4>[ 47.190885] 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>[ 47.212158] RSP: 002b:00007ffe0943a288 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 47.220906] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007fd2cdaa0473 <4>[ 47.229165] RDX: 000000000000001f RSI: 00007fd2cd994000 RDI: 0000000000000001 <4>[ 47.237418] RBP: 00007fd2cd994000 R08: 00007fd2cd993010 R09: 0000000000000000 <4>[ 47.245683] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 47.253945] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 47.262210] irq event stamp: 0 <4>[ 47.265939] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 47.273230] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 47.282658] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 47.292085] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 47.299377] ---[ end trace fd88bdcc3c2da493 ]--- <6>[ 47.304822] lkdtm: Overflow detected: saturated : 00007f9590d74580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 38.955079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.961786] CR2: ffffb83300384fd6 CR3: 0000000105b12002 CR4: 00000000003706e0 # EXEC_VMALLOC: saw 'call trace:': ok ok 33 selftests: lkdtm: EXEC_VMALLOC.sh # selftests: lkdtm: EXEC_RODATA.sh # Killed # [ 39.072995] lkdtm: Performing direct entry EXEC_RODATA # [ 39.081765] lkdtm: attempting ok execution at ffffffffb2b7ba20 # [ 39.094788] lkdtm: attempting bad execution at ffffffffb3cf8540 # [ 39.107906] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) # [ 39.122780] BUG: unable to handle page fault for address: ffffffffb3cf8540 # [ 39.130752] #PF: supervisor instruction fetch in kernel mode # [ 39.137364] #PF: error_code(0x0011) - permissions violation # [ 39.143867] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 8000000018c000e1 # [ 39.151655] Oops: 0011 [#9] SMP PTI # [ 39.162052] CPU: 1 PID: 1723 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 39.170993] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 39.178090] RIP: 0010:lkdtm_rodata_do_nothing+0x0/0x10 # [ 39.184119<6>[ 47.428093] lkdtm: Performing direct entry REFCOUNT_DEC_ZERO <6>[ 47.434904] lkdtm: attempting good refcount_dec() <6>[ 47.440458] lkdtm: attempting bad refcount_dec() to zero ] Code: ff ff ae fb 25 b3 ff ff ff ff c2 23 18 b4 ff ff ff ff f4<4>[ 47.446683] ------------[ cut here ]------------ e2 25 b3 ff ff ff ff 55 aa 55 aa 00 00 00 00 00 00 00 00 00 00 <4>[ 47.458345] refcount_t: decrement hit 0; leaking memory. <4>[ 47.470814] WARNING: CPU: 2 PID: 2145 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 54 68 69<4>[ 47.480539] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 47.539499] CPU: 2 PID: 2145 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 47.548479] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 47.555612] RIP: 0010:refcount_warn_saturate+0xfb/0x110 <4>[ 47.561739] Code: d8 ce 0d b4 c6 05 d5 ff 16 02 01 e8 f9 e5 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 ce 0d b4 c6 05 bc ff 16 02 01 e8 df e5 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b <4>[ 47.583011] RSP: 0018:ffffb83302b67e48 EFLAGS: 00010286 <4>[ 47.589138] RAX: 0000000000000000 RBX: 000000000000002f RCX: 0000000000000000 <4>[ 47.597402] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 73 20 69 # [ 39.211604] RSP: 0018:ffffb83302447e48 EFLAGS: 0<4>[ 47.605668] RBP: ffffffffb4182231 R08: 0000000000000000 R09: 0000000000000000 <4>[ 47.620139] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 47.628414] R13: ffffb83302b67f10 R14: ffffb83302b67f10 R15: ffff95e4c5a8e000 <4>[ 47.636707] FS: 00007efe5d984580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 47.646036] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 47.652736] CR2: 00007efe5d78e000 CR3: 00000001029a6005 CR4: 00000000003706e0 <4>[ 47.660997] Call Trace: <4>[ 47.664019] ? __warn+0x80/0x110 <4>[ 47.667935] ? refcount_warn_saturate+0xfb/0x110 <4>[ 47.673390] ? report_bug+0x9e/0xc0 <4>[ 47.677576] ? handle_bug+0x41/0x90 <4>[ 47.681759] ? exc_invalid_op+0x14/0x70 0010246 # [ 39.217727] RAX: 0000000000000033 RBX: 00000000000<4>[ 47.686335] ? asm_exc_invalid_op+0x12/0x20 <4>[ 47.697514] ? refcount_warn_saturate+0xfb/0x110 <4>[ 47.702985] ? refcount_warn_saturate+0xfb/0x110 <4>[ 47.708432] lkdtm_REFCOUNT_DEC_ZERO+0x4d/0xbd <4>[ 47.713685] direct_entry.cold+0x2c/0x38 00000 RCX: 0000000000000000 # [ 39.225987] RDX: 0000000000000<4>[ 47.718359] full_proxy_write+0x53/0x80 000 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 39.234247<4>[ 47.729147] vfs_write+0xe7/0x3b0 ] RBP: ffffffffb3cf8540 R08: 0000000000000000 R09: 0000000000000<4>[ 47.739355] ksys_write+0x68/0xf0 <4>[ 47.749559] do_syscall_64+0x30/0x40 <4>[ 47.753840] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 47.759772] RIP: 0033:0x7efe5d89a473 <4>[ 47.764052] 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>[ 47.785330] RSP: 002b:00007ffe00b1de88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 000 # [ 39.242506] R10: 00000000ffffe000 R11: 3ffffffffffffff<4>[ 47.794109] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007efe5d89a473 <4>[ 47.808575] RDX: 0000000000000012 RSI: 00007efe5d78e000 RDI: 0000000000000001 <4>[ 47.816838] RBP: 00007efe5d78e000 R08: 00007efe5d78d010 R09: 0000000000000000 <4>[ 47.825102] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 47.833363] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 47.841619] irq event stamp: 0 <4>[ 47.845341] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 47.852633] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 47.862060] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 47.871487] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 47.878777] ---[ end trace fd88bdcc3c2da494 ]--- <6>[ 47.884228] lkdtm: Zero detected: saturated f R12: 000000000000000c # [ 39.250766] R13: ffffb83302447f10 R14: ffffb83302447f10 R15: ffff95e4c380e000 # [ 39.259028] FS: 00007feffae84580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 39.268349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 39.275047] CR2: ffffffffb3cf8540 CR3: 0000000103ca4003 CR4: 00000000003706e0 # [ 39.283307] Call Trace: # [ 39.286344] ? __die_body.cold+0x1a/0x1f # [ 39.297228] ? no_context+0x177/0x380 # [ 39.301610] ? exc_page_fault+0xd7/0x170 # [ 39.312486] ? asm_exc_page_fault+0x1e/0x30 # [ 39.317450] ? execute_location+0x45/0x56 # [ 39.328431] ? direct_entry.cold+0x2c/0x38 # [ 39.333296] ? full_proxy_write+0x53/0x80 # [ 39.338062] ? vfs_write+0xe7/0x3b0 # [ 39.348456] ? ksys_write+0x68/0xf0 # [ 39.352631] ? do_syscall_64+0x30/0x40 # [ 39.357106] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 39.363231] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_s<6>[ 48.006107] lkdtm: Performing direct entry REFCOUNT_DEC_NEGATIVE oc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf<6>[ 48.014393] lkdtm: attempting bad refcount_dec() below zero 2_v4l2 gsmi x86_pkg_temp_thermal cros_ec_dev snd_pcm_dmaengine v<4>[ 48.027153] ------------[ cut here ]------------ ideobuf2_common cros_usbpd_notify regmap_i2c i2c_hid coreboot_ta<4>[ 48.038784] refcount_t: decrement hit 0; leaking memory. ble chromeos_pstore cros_kbd_led_backlight # [ 39.422182] CR2<4>[ 48.051260] WARNING: CPU: 1 PID: 2181 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 : ffffffffb3cf8540 # [ 39.426172] ---[ end trace fd88bdcc3c2d<4>[ 48.067157] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 a488 ]--- # [ 39.431617] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ <4>[ 48.126132] CPU: 1 PID: 2181 Comm: cat Tainted: G D W 5.10.201-cip40 #1 39.436286] Code: 89 ff e8 2e db 79 ff 48 c7 c0 ea ff ff ff eb de<4>[ 48.141265] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 <4>[ 48.154575] RIP: 0010:refcount_warn_saturate+0xfb/0x110 <4>[ 48.166917] Code: d8 ce 0d b4 c6 05 d5 ff 16 02 01 e8 f9 e5 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 ce 0d b4 c6 05 bc ff 16 02 01 e8 df e5 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00<4>[ 48.188217] RSP: 0018:ffffb83302bcfe48 EFLAGS: 00010286 <4>[ 48.200552] RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000 83 05 60 66 0b 03 # [ 39.463768] RSP: 0018:ffffb8330138fe60 <4>[ 48.208816] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 48.223288] RBP: ffffffffb4182243 R08: 0000000000000000 R09: 0000000000000000 EFLAGS: 00010286 # [ 39.469909] RAX: ffffffffb2b7b650 RBX: 00<4>[ 48.231551] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 <4>[ 48.246022] R13: ffffb83302bcff10 R14: ffffb83302bcff10 R15: ffff95e4c6510000 00000000000001 RCX: 0000000000000000 # [ 39.478169] RDX: 0000<4>[ 48.254287] FS: 00007fd9290d6580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 48.269825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ <4>[ 48.276536] CR2: 00007fd928ee0000 CR3: 0000000103874001 CR4: 00000000003706e0 <4>[ 48.291008] Call Trace: 39.486426] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000<4>[ 48.294035] ? __warn+0x80/0x110 <4>[ 48.304134] ? refcount_warn_saturate+0xfb/0x110 000000000001 # [ 39.494686] R10: 00000000ffffe000 R11: 3fffff<4>[ 48.309599] ? report_bug+0x9e/0xc0 ffffffffff R12: 0000000000000004 # [ 39.502945] R13: ffffb833<4>[ 48.319995] ? handle_bug+0x41/0x90 0138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 39.5<4>[ 48.330393] ? exc_invalid_op+0x14/0x70 11206] FS: 00007feffae84580(0000) GS:ffff95e53ac80000(0000) knl<4>[ 48.341179] ? asm_exc_invalid_op+0x12/0x20 GS:0000000000000000 # [ 39.520532] CS: 0010 DS: 0000 ES: 000<4>[ 48.352359] ? refcount_warn_saturate+0xfb/0x110 <4>[ 48.364018] ? refcount_warn_saturate+0xfb/0x110 0 CR0: 0000000080050033 # [ 39.527239] CR2: ffffffffb3cf8540 <4>[ 48.369468] lkdtm_REFCOUNT_DEC_NEGATIVE+0x37/0x61 <4>[ 48.381317] direct_entry.cold+0x2c/0x38 CR3: 0000000103ca4003 CR4: 00000000003706e0 # [ 39.535500] BU<4>[ 48.385991] full_proxy_write+0x53/0x80 G: sleeping function called from invalid context at include/linu<4>[ 48.396770] vfs_write+0xe7/0x3b0 <4>[ 48.406973] ksys_write+0x68/0xf0 x/percpu-rwsem.h:49 # [ 39.545693] in_atomic(): 0, irqs_disab<4>[ 48.410967] do_syscall_64+0x30/0x40 <4>[ 48.421459] entry_SYSCALL_64_after_hwframe+0x62/0xc7 led(): 1, non_block: 0, pid: 1723, name: cat # [ 39.554438] I<4>[ 48.427395] RIP: 0033:0x7fd928fec473 <4>[ 48.437884] 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 NFO: lockdep is turned off. # [ 39.559104] irq event stamp: 0<4>[ 48.459158] RSP: 002b:00007ffc0eaa6bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 48.474116] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fd928fec473 # [ 39.562800] hardirqs last enabled at (0): [<000000000000<4>[ 48.482381] RDX: 0000000000000016 RSI: 00007fd928ee0000 RDI: 0000000000000001 <4>[ 48.496850] RBP: 00007fd928ee0000 R08: 00007fd928edf010 R09: 0000000000000000 0000>] 0x0 # [ 39.570090] hardirqs last disabled at (0): [[ 48.505116] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 48.519588] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ffffffb20fd6cc>] copy_process+0x65c/0x20e0 # [ 39.579506] sof<4>[ 48.527854] irq event stamp: 0 <4>[ 48.537767] hardirqs last enabled at (0): [<0000000000000000>] 0x0 tirqs last enabled at (0): [] copy_process+0x<4>[ 48.545061] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 65c/0x20e0 # [ 39.588932] softirqs last disabled at (0): [<00<4>[ 48.560700] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 48.576342] softirqs last disabled at (0): [<0000000000000000>] 0x0 00000000000000>] 0x0 # [ 39.596222] CPU: 1 PID: 1723 Comm: ca<4>[ 48.583635] ---[ end trace fd88bdcc3c2da495 ]--- t Tainted: G D W 5.10.201-cip40 #1 # [ 39.605152<6>[ 48.595293] lkdtm: Negative detected: saturated ] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 39.612245] Call Trace: # [ 39.615264] dump_stack+0x77/0x9b # [ 39.619256] ___might_sleep.cold+0xa6/0xb6 # [ 39.630330] exit_signals+0x1c/0x300 # [ 39.634611] do_exit+0xc2/0xab0 # [ 39.638398] ? ksys_write+0x68/0xf0 # [ 39.642581] make_task_dead+0x2f/0x30 # [ 39.646956] rewind_stack_and_make_dead+0x17/0x20 # [ 39.652498] RIP: 0033:0x7feffad9a473 # [ 39.656776] 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 # [ 39.678049] RSP: 002b:00007ffee5031f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 39.686795] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007feffad9a473 # [ 39.695055] RDX: 000000000000000c RSI: 00007feffac8e000 RDI: 0000000000000001 # [ 39.703315] RBP: 00007feffac8e000 R08: 00007feffac8d010 R09: 0000000000000000 # [ 39.711575] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 39.719835] 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 # [ 39.837764] lkdtm: Performing direct entry EXEC_USERSPACE # [ 39.846291] lkdtm: attempting ok execution <6>[ 48.739415] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_NEGATIVE at ffffffffb2b7ba20 # [ 39.859342] lkdtm: attempting bad exec<6>[ 48.751511] lkdtm: attempting bad refcount_dec_and_test() below zero ution at 00007fcfbf818000 # [ 39.872433] unable to execute us<4>[ 48.765113] ------------[ cut here ]------------ <4>[ 48.776770] refcount_t: underflow; use-after-free. erspace code (SMEP?) (uid: 0) # [ 39.885352] BUG: unable to h<4>[ 48.782444] WARNING: CPU: 1 PID: 2217 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 andle page fault for address: 00007fcfbf818000 # [ 39.893324]<4>[ 48.798341] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 #PF: supervisor instruction fetch in kernel mode # [ 39.9061<4>[ 48.857294] CPU: 1 PID: 2217 Comm: cat Tainted: G D W 5.10.201-cip40 #1 48] #PF: error_code(0x0011) - permissions violation # [ 39.91<4>[ 48.872478] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 2663] PGD 80000001031b5067 P4D 80000001031b5067 PUD 103988067 PM<4>[ 48.885789] RIP: 0010:refcount_warn_saturate+0xba/0x110 <4>[ 48.898131] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 D 104874067 PTE 107ae1067 # [ 39.928903] Oops: 0011 [#10] SMP<4>[ 48.919431] RSP: 0018:ffffb83302c37e40 EFLAGS: 00010286 PTI # [ 39.933182] CPU: 1 PID: 1760 Comm: cat Tainted: G <4>[ 48.931748] RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000000000 <4>[ 48.946223] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 D W 5.10.201-cip40 #1 # [ 39.942121] Hardware name:<4>[ 48.954488] RBP: ffffffffb4181e98 R08: 0000000000000000 R09: 0000000000000000 <4>[ 48.968958] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f Google Rammus/Rammus, BIOS 09/04/2020 # [ 39.949217] RIP: 0<4>[ 48.977221] R13: ffffb83302c37f10 R14: ffffb83302c37f10 R15: ffff95e4c3d7d000 <4>[ 48.991694] FS: 00007ff7bb9ce580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 010:0x7fcfbf818000 # [ 39.953495] Code: Unable to access opco<4>[ 49.001025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 49.013944] CR2: 00007ff7bb7d8000 CR3: 0000000102992004 CR4: 00000000003706e0 de bytes at RIP 0x7fcfbf817fd6. # [ 39.961074] RSP: 0018:ffff<4>[ 49.022207] Call Trace: b8330249fe50 EFLAGS: 00010246 # [ 39.967198] RAX: 00000000000<4>[ 49.031458] ? __warn+0x80/0x110 <4>[ 49.041564] ? refcount_warn_saturate+0xba/0x110 00033 RBX: 0000000000000024 RCX: 0000000000000000 # [ 39.9754<4>[ 49.047012] ? report_bug+0x9e/0xc0 57] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac<4>[ 49.057427] ? handle_bug+0x41/0x90 <4>[ 49.067826] ? exc_invalid_op+0x14/0x70 9bf50 # [ 39.983730] RBP: 00007fcfbf818000 R08: 0000000000000<4>[ 49.072404] ? asm_exc_invalid_op+0x12/0x20 000 R09: 0000000000000000 # [ 39.991991] R10: 00000000ffffe00<4>[ 49.083577] ? refcount_warn_saturate+0xba/0x110 0 R11: 3fffffffffffffff R12: 000000000000000f # [ 40.000252] <4>[ 49.095239] __refcount_sub_and_test.constprop.0+0x3c/0x50 R13: ffffb8330249ff10 R14: ffffb8330249ff10 R15: ffff95e4c3b3100<4>[ 49.107873] lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE+0x3e/0x78 <4>[ 49.120604] direct_entry.cold+0x2c/0x38 0 # [ 40.008512] FS: 00007fcfbf7e9580(0000) GS:ffff95e53ac80<4>[ 49.125279] full_proxy_write+0x53/0x80 <4>[ 49.136058] vfs_write+0xe7/0x3b0 000(0000) knlGS:0000000000000000 # [ 40.017839] CS: 0010 DS:<4>[ 49.140052] ksys_write+0x68/0xf0 0000 ES: 0000 CR0: 0000000080050033 # [ 40.024544] CR2: 0000<4>[ 49.150254] do_syscall_64+0x30/0x40 7fcfbf818000 CR3: 00000001029d6002 CR4: 00000000003706e0 # [ <4>[ 49.160746] entry_SYSCALL_64_after_hwframe+0x62/0xc7 40.032803] Call Trace: # [ 40.035823] ? __die_body.cold+0x1a<4>[ 49.172895] RIP: 0033:0x7ff7bb8e4473 <4>[ 49.183390] 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 /0x1f # [ 40.046707] ? no_context+0x177/0x380 # [ 40.0510<4>[ 49.204665] RSP: 002b:00007ffc1098fde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 49.219623] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007ff7bb8e4473 88] ? exc_page_fault+0x53/0x170 # [ 40.055757] ? asm_exc_pa<4>[ 49.227887] RDX: 000000000000001f RSI: 00007ff7bb7d8000 RDI: 0000000000000001 <4>[ 49.242360] RBP: 00007ff7bb7d8000 R08: 00007ff7bb7d7010 R09: 0000000000000000 ge_fault+0x1e/0x30 # [ 40.066931] ? lkdtm_EXEC_USERSPACE.col<4>[ 49.250624] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 49.265095] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 d+0x66/0xae # [ 40.078784] ? direct_entry.cold+0x2c/0x38 # <4>[ 49.273362] irq event stamp: 0 <4>[ 49.283270] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 40.083648] ? full_proxy_write+0x53/0x80 # [ 40.088414] <4>[ 49.290564] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 49.306206] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 ? vfs_write+0xe7/0x3b0 # [ 40.098809] ? ksys_write+0x68/0xf0<4>[ 49.315625] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 49.329127] ---[ end trace fd88bdcc3c2da496 ]--- # [ 40.102993] ? do_syscall_64+0x30/0x40 # [ 40.107477] <6>[ 49.334575] lkdtm: Negative detected: saturated ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 40.113604] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 40.172555] CR2: 00007fcfbf818000 # [ 40.176544] ---[ end trace fd88bdcc3c2da489 ]--- # [ 40.181988] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 40.186655] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 40.207925] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 40.214048] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 40.222308] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 40.230566] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 40.238826] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 40.247086] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R1<6>[ 49.480942] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_NEGATIVE <6>[ 49.490755] lkdtm: attempting bad refcount_sub_and_test() below zero <4>[ 49.498175] ------------[ cut here ]------------ 5: ffff95e4c29bd000 # [ 40.255345] FS: 00007fcfbf7e9580(0000<4>[ 49.503632] refcount_t: underflow; use-after-free. ) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 40.264<4>[ 49.515493] WARNING: CPU: 3 PID: 2253 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 672] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 40<4>[ 49.531420] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 49.590405] CPU: 3 PID: 2253 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 49.599378] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 49.606477] RIP: 0010:refcount_warn_saturate+0xba/0x110 <4>[ 49.612627] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 <4>[ 49.633902] RSP: 0018:ffffb83302cefe40 EFLAGS: 00010286 <4>[ 49.640043] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 0000000000000000 <4>[ 49.648305] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 <4>[ 49.656569] RBP: ffffffffb4181eb8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 49.664831] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f <4>[ 49.673094] R13: ffffb83302ceff10 R14: ffffb83302ceff10 R15: ffff95e4c3b2b000 <4>[ 49.681356] FS: 00007fb0f76e4580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 49.690686] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 49.697395] CR2: 00007fb0f74ee000 CR3: 00000001064e4001 CR4: 00000000003706e0 <4>[ 49.705656] Call Trace: <4>[ 49.708681] ? __warn+0x80/0x110 .271376] CR2: 00007fcfbf818000 CR3: 00000001029d6002 CR4: 000000<4>[ 49.712600] ? refcount_warn_saturate+0xba/0x110 <4>[ 49.724257] ? report_bug+0x9e/0xc0 <4>[ 49.728468] ? handle_bug+0x41/0x90 <4>[ 49.732675] ? exc_invalid_op+0x14/0x70 <4>[ 49.737249] ? asm_exc_invalid_op+0x12/0x20 <4>[ 49.742213] ? refcount_warn_saturate+0xba/0x110 <4>[ 49.747686] __refcount_sub_and_test.constprop.0+0x3c/0x50 <4>[ 49.754103] lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE+0x3e/0x7b <4>[ 49.760619] direct_entry.cold+0x2c/0x38 <4>[ 49.765290] full_proxy_write+0x53/0x80 <4>[ 49.769889] vfs_write+0xe7/0x3b0 00003706e0 # EXEC_USERSPACE: saw 'call trace:': ok ok 35 selft<4>[ 49.773921] ksys_write+0x68/0xf0 <4>[ 49.784125] do_syscall_64+0x30/0x40 ests: lkdtm: EXEC_USERSPACE.sh # selftests: lkdtm: EXEC_NULL.sh<4>[ 49.788410] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # Killed # [ 40.386298] lkdtm: Performing direct entry EXEC<4>[ 49.800557] RIP: 0033:0x7fb0f75fa473 <4>[ 49.811054] 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 _NULL # [ 40.397348] lkdtm: attempting ok execution at ffffff<4>[ 49.832329] RSP: 002b:00007fff1ae98e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 49.847289] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007fb0f75fa473 <4>[ 49.855553] RDX: 000000000000001f RSI: 00007fb0f74ee000 RDI: 0000000000000001 <4>[ 49.863815] RBP: 00007fb0f74ee000 R08: 00007fb0f74ed010 R09: 0000000000000000 <4>[ 49.872076] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 49.880345] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 49.888661] irq event stamp: 0 ffb2b7ba20 # [ 40.404188] lkdtm: attempting bad execution at <4>[ 49.892370] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 49.905887] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 49.915312] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 49.924737] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 49.932027] ---[ end trace fd88bdcc3c2da497 ]--- <6>[ 49.937473] lkdtm: Negative detected: saturated 0000000000000000 # [ 40.411094] BUG: kernel NULL pointer dereference, address: 0000000000000000 # [ 40.419191] #PF: supervisor instruction fetch in kernel mode # [ 40.425803] #PF: error_code(0x0010) - not-present page # [ 40.431822] PGD 0 P4D 0 # [ 40.434941] Oops: 0010 [#11] SMP PTI # [ 40.445434] CPU: 2 PID: 1797 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 40.454375] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 40.461472] RIP: 0010:0x0 # [ 40.464683] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. # [ 40.472643] RSP: 0018:ffffb83302577e48 EFLAGS: 00010246 # [ 40.478770] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 # [ 40.487030] RDX: 0000000000000000 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # [ 40.495290] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 # [ 40.503549] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a # [ 40.511808] R13: ffffb83302577f10 R14: ffffb83302577f10 R15: ffff95e4c2c6f000 # [ 40.520067] FS: 00007f84a446c580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 40.529395] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 40.536100] CR2: ffffffffffffffd6 CR3: 00000001065ac001 CR4: 00000000003706e0 # [ 40.544360] Call Trace: # [ 40.547380] ? __die_body.cold+0x1a/0x1f # [ 40.552050] ? no_c<6>[ 50.076267] lkdtm: Performing direct entry REFCOUNT_INC_ZERO <6>[ 50.086189] lkdtm: attempting safe refcount_inc_not_zero() from zero <6>[ 50.093599] lkdtm: Good: zero detected ontext+0x177/0x380 # [ 40.556429] ? exc_page_fault+0x53/0x17<6>[ 50.098085] lkdtm: Correctly stayed at zero <6>[ 50.109263] lkdtm: attempting bad refcount_inc() from zero 0 # [ 40.561098] ? asm_exc_page_fault+0x1e/0x30 # [ 40.56<4>[ 50.115682] ------------[ cut here ]------------ <4>[ 50.127336] refcount_t: addition on 0; use-after-free. <4>[ 50.133395] WARNING: CPU: 2 PID: 2286 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 6054] execute_location+0x45/0x56 # [ 40.570624] direct_entr<4>[ 50.143119] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 50.202061] CPU: 2 PID: 2286 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 50.211002] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 50.218100] RIP: 0010:refcount_warn_saturate+0x74/0x110 <4>[ 50.224227] Code: 02 01 e8 89 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d b4 c6 05 45 00 17 02 01 e8 66 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d <4>[ 50.245499] RSP: 0018:ffffb83302d7fe48 EFLAGS: 00010286 <4>[ 50.251642] RAX: 0000000000000000 RBX: 0000000000000033 RCX: 0000000000000000 y.cold+0x2c/0x38 # [ 40.575293] full_proxy_write+0x53/0x80 <4>[ 50.259912] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 <4>[ 50.274385] RBP: ffffffffb4182259 R08: 0000000000000000 R09: 0000000000000000 <4>[ 50.282648] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 50.290910] R13: ffffb83302d7ff10 R14: ffffb83302d7ff10 R15: ffff95e4c5b13000 # [ 40.579864] vfs_write+0xe7/0x3b0 # [ 40.583844] ksys_w<4>[ 50.299175] FS: 00007f18cfcab580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 50.314719] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 50.321459] CR2: 00007f18cfab5000 CR3: 0000000103d7c005 CR4: 00000000003706e0 <4>[ 50.329725] Call Trace: <4>[ 50.332749] ? __warn+0x80/0x110 rite+0x68/0xf0 # [ 40.587824] do_syscall_64+0x30/0x40 # [ <4>[ 50.336672] ? refcount_warn_saturate+0x74/0x110 <4>[ 50.348351] ? report_bug+0x9e/0xc0 40.592093] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 40.<4>[ 50.352551] ? handle_bug+0x41/0x90 <4>[ 50.362937] ? exc_invalid_op+0x14/0x70 <4>[ 50.367512] ? asm_exc_invalid_op+0x12/0x20 <4>[ 50.372502] ? refcount_warn_saturate+0x74/0x110 598023] RIP: 0033:0x7f84a4382473 # [ 40.602302] Code: 8b 15 2<4>[ 50.377977] ? refcount_warn_saturate+0x74/0x110 1 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64<4>[ 50.389631] lkdtm_REFCOUNT_INC_ZERO+0x99/0xc1 <4>[ 50.401102] direct_entry.cold+0x2c/0x38 <4>[ 50.405806] full_proxy_write+0x53/0x80 <4>[ 50.410388] vfs_write+0xe7/0x3b0 <4>[ 50.414411] ksys_write+0x68/0xf0 <4>[ 50.418405] do_syscall_64+0x30/0x40 <4>[ 50.422718] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 50.428653] RIP: 0033:0x7f18cfbc1473 <4>[ 50.432935] 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>[ 50.454210] RSP: 002b:00007ffe8fee6648 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 50.462959] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f18cfbc1473 <4>[ 50.471221] RDX: 0000000000000012 RSI: 00007f18cfab5000 RDI: 0000000000000001 <4>[ 50.479483] RBP: 00007f18cfab5000 R08: 00007f18cfab4010 R09: 0000000000000000 <4>[ 50.487747] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 50.496009] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 50.504277] irq event stamp: 0 <4>[ 50.508005] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 50.515299] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 50.524727] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 50.534157] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 50.541448] ---[ end trace fd88bdcc3c2da498 ]--- <6>[ 50.546895] lkdtm: Zero detected: saturated 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 # [ 40.623575] RSP: 002b:00007ffd6fc2e808 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 40.632312] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f84a4382473 # [ 40.640572] RDX: 000000000000000a RSI: 00007f84a4276000 RDI: 0000000000000001 # [ 40.648831] RBP: 00007f84a4276000 R08: 00007f84a4275010 R09: 0000000000000000 # [ 40.657091] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 40.665351] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 40.673613] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 40.732600] CR2: 0000000000000000 # [ 40.736589] ---[ end trace fd88bdcc3c2da48a ]--- # [ 40.742026] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 40.746684] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 40.767957] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [<6>[ 50.704654] lkdtm: Performing direct entry REFCOUNT_ADD_ZERO 40.774080] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0<6>[ 50.713904] lkdtm: attempting safe refcount_add_not_zero() from zero 000000000000000 # [ 40.782339] RDX: 0000000000000000 RSI: fff<6>[ 50.727512] lkdtm: Good: zero detected f95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 40.790597] RBP: fffff<6>[ 50.738202] lkdtm: Correctly stayed at zero fffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 4<6>[ 50.749380] lkdtm: attempting bad refcount_add() from zero <4>[ 50.762012] ------------[ cut here ]------------ 0.798856] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000<4>[ 50.767462] refcount_t: addition on 0; use-after-free. 00000000004 # [ 40.807115] R13: ffffb8330138ff10 R14: ffffb83<4>[ 50.779733] WARNING: CPU: 1 PID: 2319 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 30138ff10 R15: ffff95e4c29bd000 # [ 40.815374] FS: 00007f84a<4>[ 50.795641] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 446c580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 50.854605] CPU: 1 PID: 2319 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 50.869741] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 40.824718] CS: 0010 DS: 0000 ES: 0000 CR0: 00000000800500<4>[ 50.876842] RIP: 0010:refcount_warn_saturate+0x74/0x110 <4>[ 50.889177] Code: 02 01 e8 89 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d b4 c6 05 45 00 17 02 01 e8 66 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d 33 # [ 40.831423] CR2: ffffffffffffffd6 CR3: 00000001065ac001<4>[ 50.910463] RSP: 0018:ffffb83302e0fe48 EFLAGS: 00010286 <4>[ 50.922798] RAX: 0000000000000000 RBX: 0000000000000034 RCX: 0000000000000000 CR4: 00000000003706e0 # [ 40.839684] BUG: sleeping function <4>[ 50.931063] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 50.945533] RBP: ffffffffb418226b R08: 0000000000000000 R09: 0000000000000000 called from invalid context at include/linux/percpu-rwsem.h:49 <4>[ 50.953798] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 50.968270] R13: ffffb83302e0ff10 R14: ffffb83302e0ff10 R15: ffff95e4c28e9000 # [ 40.849886] in_atomic(): 0, irqs_disabled(): 1, non_block: <4>[ 50.976534] FS: 00007f1083ed8580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 <4>[ 50.992073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 0, pid: 1797, name: cat # [ 40.858630] INFO: lockdep is turne<4>[ 50.998784] CR2: 00007f1083ce2000 CR3: 00000001058b6006 CR4: 00000000003706e0 <4>[ 51.013255] Call Trace: d off. # [ 40.863297] irq event stamp: 0 # [ 40.866994] ha<4>[ 51.016282] ? __warn+0x80/0x110 rdirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 40.<4>[ 51.026383] ? refcount_warn_saturate+0x74/0x110 874283] hardirqs last disabled at (0): [] copy<4>[ 51.038046] ? report_bug+0x9e/0xc0 _process+0x65c/0x20e0 # [ 40.883709] softirqs last enabled a<4>[ 51.048444] ? handle_bug+0x41/0x90 <4>[ 51.058843] ? exc_invalid_op+0x14/0x70 t (0): [] copy_process+0x65c/0x20e0 # [ 40.<4>[ 51.063417] ? asm_exc_invalid_op+0x12/0x20 893125] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 51.074590] ? refcount_warn_saturate+0x74/0x110 <4>[ 51.086273] ? refcount_warn_saturate+0x74/0x110 # [ 40.900414] CPU: 2 PID: 1797 Comm: cat Tainted: G D W<4>[ 51.091721] lkdtm_REFCOUNT_ADD_ZERO+0x99/0xc1 5.10.201-cip40 #1 # [ 40.909353] Hardware name: Goog<4>[ 51.103183] direct_entry.cold+0x2c/0x38 le Rammus/Rammus, BIOS 09/04/2020 # [ 40.916448] Call Trace:<4>[ 51.114094] full_proxy_write+0x53/0x80 # [ 40.919466] dump_stack+0x77/0x9b # [ 40.923455] ___m<4>[ 51.124883] vfs_write+0xe7/0x3b0 ight_sleep.cold+0xa6/0xb6 # [ 40.928319] exit_signals+0x1c/0<4>[ 51.135089] ksys_write+0x68/0xf0 x300 # [ 40.932599] do_exit+0xc2/0xab0 # [ 40.936383] ? <4>[ 51.145293] do_syscall_64+0x30/0x40 <4>[ 51.155790] entry_SYSCALL_64_after_hwframe+0x62/0xc7 ksys_write+0x68/0xf0 # [ 40.940567] make_task_dead+0x2f/0x30<4>[ 51.161726] RIP: 0033:0x7f1083dee473 <4>[ 51.172232] 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 # [ 40.944945] rewind_stack_and_make_dead+0x17/0x20 # [ <4>[ 51.193507] RSP: 002b:00007ffefda9c8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 51.208463] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f1083dee473 40.950485] RIP: 0033:0x7f84a4382473 # [ 40.954764] Code: 8b 1<4>[ 51.216727] RDX: 0000000000000012 RSI: 00007f1083ce2000 RDI: 0000000000000001 <4>[ 51.231199] RBP: 00007f1083ce2000 R08: 00007f1083ce1010 R09: 0000000000000000 5 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00<4>[ 51.239462] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 51.253934] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3<4>[ 51.262203] irq event stamp: 0 <4>[ 51.272127] hardirqs last enabled at (0): [<0000000000000000>] 0x0 d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 #<4>[ 51.279421] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 51.295057] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 [ 40.976036] RSP: 002b:00007ffd6fc2e808 EFLAGS: 00000246 ORIG<4>[ 51.304487] softirqs last disabled at (0): [<0000000000000000>] 0x0 _RAX: 0000000000000001 # [ 40.984781] RAX: ffffffffffffffda R<4>[ 51.317990] ---[ end trace fd88bdcc3c2da499 ]--- BX: 000000000000000a RCX: 00007f84a4382473 # [ 40.993040] RDX<6>[ 51.329653] lkdtm: Zero detected: saturated : 000000000000000a RSI: 00007f84a4276000 RDI: 0000000000000001 # [ 41.001298] RBP: 00007f84a4276000 R08: 00007f84a4275010 R09: 0000000000000000 # [ 41.009557] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 41.017817] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # EXEC_NULL: saw 'call trace:': ok ok 36 selftests: lkdtm: EXEC_NULL.sh # selftests: lkdtm: ACCESS_USERSPACE.sh # Killed # [ 41.137850] lkdtm: Performing direct entry ACCESS_USERSPACE # [ 41.144531] lkdtm: attempting bad read at 00007f69cfc69000 # [ 41.157146] BUG: unable to handle page fault for address: 00007f69cfc69000 # [ 41.171326] #PF: supervisor read access in kernel mode # [ 41.177356] #PF: error_code(0x0001) - permissions violation # [ 41.183868] PGD 8000000103ca8067 P4D 8000000103ca8067 PUD 1066ed067 PMD 106d6e067 PTE 107ba2067 # [ 41.200099] Oops: 0001 [#12] SMP PTI # [ 41.204381] CPU: 1 PID: 1833 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 41.213323] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 41.220422] RIP: 0010:lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 # [ 41.226937] Code: 00 00 00 75 64 48 83 c4 10 5d c3 cc cc cc cc 48 89 ee 48 c7 c7 e0 30 18 b4 e8 44 d8 fb ff 48 c7 c7 08 31 18 b4 b8 de c0 de c0 <48> 03 45 00 48 89 04 24 e8 2b d8 fb ff 48 89 ee 48 c7 c7 30 31 18 # [ 41.254419] RSP: 0018:ffffb83302607e48 EFLAGS: 00010246 # [ 41.260534] RAX: 00000000c0dec0de RBX: 0000000000000026 RCX: 0000000000000000 # [ 41.268795] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb4183108 # [ 41.277056] RBP: 00007f69cfc69000 R08: 0000000000000000 R09: 0000000000000000 # [ 41.285314] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000011 # [ 41.293574] R13: ffffb83302607f10 R14: ffffb83302607f10 R15: ffff95e4c38ba000 # [ 41.301833] FS: 00007f69cfc3a580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 41.311171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 41.317877] CR2: 00007f69cfc69000 CR3: 000000010394a003 CR4: 00000000003706e0 # [ 41.326147] Call Trace: # [ 41.329167] ? __die_body.cold+0x1a/0x1f # [ 41.340069] ? no_context+0x177/0x380 # [ 41.344449] ? exc_page_fault+0x53/0x170 # [ 41.355326] ? asm_exc_page_fault+0x1e/0x30 # [ 41.360279] ? lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 # [ 41.366113] ? lkdtm_ACCESS_USERSPACE.cold+0x35/0xa3 # [ 41.378157] direct_entry.cold+0x2c/0x38 # [ 41.382827] full_proxy_write+0x53/0x80 # [ 41.387401] vfs_write+0xe7/0x3b0 # [ 41.391392] ksys_write+0x68/0xf0 # [ 41.395380] do_syscall_64+0x30/0x40 # [ 41.399658] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 41.405588] RIP: 0033:0x7f69cfb50473 # [ 41.409858] 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 # [ 41.431121] RSP: 002b:00007ffd3d85e698 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 41.<6>[ 51.641709] lkdtm: Performing direct entry REFCOUNT_INC_SATURATED <6>[ 51.649892] lkdtm: attempting bad refcount_inc() from saturated <4>[ 51.656820] ------------[ cut here ]------------ <4>[ 51.662292] refcount_t: saturated; leaking memory. 439858] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007f6<4>[ 51.667962] WARNING: CPU: 3 PID: 2355 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 9cfb50473 # [ 41.448118] RDX: 0000000000000011 RSI: 00007f69c<4>[ 51.683883] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 51.742872] CPU: 3 PID: 2355 Comm: cat Tainted: G D W 5.10.201-cip40 #1 fa44000 RDI: 0000000000000001 # [ 41.456376] RBP: 00007f69cfa<4>[ 51.751843] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 51.765149] RIP: 0010:refcount_warn_saturate+0x51/0x110 <4>[ 51.771279] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d <4>[ 51.792552] RSP: 0018:ffffb83302e97e48 EFLAGS: 00010286 <4>[ 51.798682] RAX: 0000000000000000 RBX: 0000000000000035 RCX: 0000000000000000 <4>[ 51.806945] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 <4>[ 51.815207] RBP: ffffffffb418227d R08: 0000000000000000 R09: 0000000000000000 <4>[ 51.823471] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 <4>[ 51.831734] R13: ffffb83302e97f10 R14: ffffb83302e97f10 R15: ffff95e4c59fc000 <4>[ 51.839998] FS: 00007feaef1ef580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 51.849330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 51.856039] CR2: 00007feaeeff9000 CR3: 0000000105934006 CR4: 00000000003706e0 <4>[ 51.864302] Call Trace: <4>[ 51.867325] ? __warn+0x80/0x110 44000 R08: 00007f69cfa43010 R09: 0000000000000000 # [ 41.4646<4>[ 51.871248] ? refcount_warn_saturate+0x51/0x110 <4>[ 51.882902] ? report_bug+0x9e/0xc0 <4>[ 51.887090] ? handle_bug+0x41/0x90 <4>[ 51.891306] ? exc_invalid_op+0x14/0x70 <4>[ 51.895897] ? asm_exc_invalid_op+0x12/0x20 <4>[ 51.900876] ? refcount_warn_saturate+0x51/0x110 37] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 00000000000<4>[ 51.906352] ? refcount_warn_saturate+0x51/0x110 <4>[ 51.918005] lkdtm_REFCOUNT_INC_SATURATED+0x3c/0x64 00001 # [ 41.472897] R13: 0000000000000001 R14: 0000000000020<4>[ 51.923746] direct_entry.cold+0x2c/0x38 000 R15: 0000000000020000 # [ 41.481160] Modules linked in: f<4>[ 51.934632] full_proxy_write+0x53/0x80 use ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_<4>[ 51.945421] vfs_write+0xe7/0x3b0 <4>[ 51.955625] ksys_write+0x68/0xf0 <4>[ 51.959617] do_syscall_64+0x30/0x40 <4>[ 51.963897] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 51.969830] RIP: 0033:0x7feaef105473 <4>[ 51.974112] 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>[ 51.995385] RSP: 002b:00007ffe6123fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 52.004134] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007feaef105473 <4>[ 52.012396] RDX: 0000000000000017 RSI: 00007feaeeff9000 RDI: 0000000000000001 <4>[ 52.020658] RBP: 00007feaeeff9000 R08: 00007feaeeff8010 R09: 0000000000000000 <4>[ 52.028919] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 52.037171] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 52.045437] irq event stamp: 0 <4>[ 52.049161] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 52.056452] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 52.065878] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 52.075305] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 52.082594] ---[ end trace fd88bdcc3c2da49a ]--- <6>[ 52.088029] lkdtm: Saturation detected: still saturated core industrialio_triggered_buffer kfifo_buf industrialio snd_soc_da7219 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 41.540109] CR2: 00007f69cfc69000 # [ 41.544087] ---[ end trace fd88bdcc3c2da48b ]--- # [ 41.549533] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 41.554201] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 41.575471] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 41.581594] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 41.589852] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 41.598112] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 41.606372] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 41.614630] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd00<6>[ 52.218047] lkdtm: Performing direct entry REFCOUNT_DEC_SATURATED 0 # [ 41.622889] FS: 00007f69cfc3a580(0000) GS:ffff95e53ac80<6>[ 52.225690] lkdtm: attempting bad refcount_dec() from saturated 000(0000) knlGS:0000000000000000 # [ 41.632215] CS: 0010 DS:<4>[ 52.238826] ------------[ cut here ]------------ 0000 ES: 0000 CR0: 0000000080050033 # [ 41.638920] CR2: 0000<4>[ 52.250496] refcount_t: decrement hit 0; leaking memory. 7f69cfc69000 CR3: 000000010394a003 CR4: 00000000003706e0 # ACCE<4>[ 52.262993] WARNING: CPU: 0 PID: 2391 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 SS_USERSPACE: saw 'call trace:': ok ok 37 selftests: lkdtm: ACC<4>[ 52.278860] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 ESS_USERSPACE.sh # selftests: lkdtm: ACCESS_NULL.sh # Killed <4>[ 52.337899] CPU: 0 PID: 2391 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 41.754845] lkdtm: Performing direct entry ACCESS_NULL # [<4>[ 52.353032] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 41.765084] lkdtm: attempting bad read at 0000000000000000 # <4>[ 52.366349] RIP: 0010:refcount_warn_saturate+0xfb/0x110 [ 41.777720] BUG: kernel NULL pointer dereference, address: 00<4>[ 52.378686] Code: d8 ce 0d b4 c6 05 d5 ff 16 02 01 e8 f9 e5 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 ce 0d b4 c6 05 bc ff 16 02 01 e8 df e5 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b 00000000000000 # [ 41.791999] #PF: supervisor read access in <4>[ 52.406168] RSP: 0018:ffffb83302f1fe48 EFLAGS: 00010286 kernel mode # [ 41.798027] #PF: error_code(0x0000) - not-pres<4>[ 52.418499] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 0000000000000000 ent page # [ 41.810266] PGD 0 P4D 0 # [ 41.813384] Oops: <4>[ 52.432996] RDX: ffff95e53ac2c620 RSI: ffff95e53ac1bf50 RDI: ffff95e53ac1bf50 0000 [#13] SMP PTI # [ 41.823877] CPU: 1 PID: 1869 Comm: cat <4>[ 52.447498] RBP: ffffffffb4182294 R08: 0000000000000000 R09: 0000000000000000 Tainted: G D W 5.10.201-cip40 #1 # [ 41.832819] <4>[ 52.461966] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 41.<4>[ 52.476475] R13: ffffb83302f1ff10 R14: ffffb83302f1ff10 R15: ffff95e4c5306000 846130] RIP: 0010:lkdtm_ACCESS_NULL+0x14/0x53 # [ 41.851697] <4>[ 52.490952] FS: 00007fe3d86c4580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 Code: e8 d7 fb ff be 00 10 00 00 48 89 ef e8 97 7b 0a ff e9 69 f<4>[ 52.506488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 f ff ff 0f 1f 44 00 00 53 31 f6 48 c7 c7 e0 30 18 b4 e8 c2 d7 fb<4>[ 52.519417] CR2: 00007fe3d84ce000 CR3: 0000000103806005 CR4: 00000000003706f0 ff <48> 8b 1c 25 00 00 00 00 b8 de c0 de c0 48 c7 c7 08 31 18 b<4>[ 52.533921] Call Trace: 4 48 01 # [ 41.879178] RSP: 0018:ffffb83302667e58 EFLAGS: 000<4>[ 52.543166] ? __warn+0x80/0x110 10246 # [ 41.885300] RAX: 000000000000002e RBX: 0000000000000<4>[ 52.553238] ? refcount_warn_saturate+0xfb/0x110 027 RCX: 0000000000000000 # [ 41.893560] RDX: 000000000000000<4>[ 52.564874] ? report_bug+0x9e/0xc0 0 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 41.901818] <4>[ 52.575269] ? handle_bug+0x41/0x90 RBP: ffffffffb41821d1 R08: 0000000000000000 R09: 000000000000000<4>[ 52.585674] ? exc_invalid_op+0x14/0x70 0 # [ 41.910091] R10: 00000000ffffe000 R11: 3fffffffffffffff <4>[ 52.596481] ? asm_exc_invalid_op+0x12/0x20 R12: 000000000000000c # [ 41.918354] R13: ffffb83302667f10 R1<4>[ 52.607658] ? refcount_warn_saturate+0xfb/0x110 4: ffffb83302667f10 R15: ffff95e4c58ae000 # [ 41.926613] FS: <4>[ 52.619322] ? refcount_warn_saturate+0xfb/0x110 00007f62f0d4c580(0000) GS:ffff95e53ac80000(0000) knlGS:00000000<4>[ 52.630968] lkdtm_REFCOUNT_DEC_SATURATED+0x37/0x5f 00000000 # [ 41.935939] CS: 0010 DS: 0000 ES: 0000 CR0: 0000<4>[ 52.642955] direct_entry.cold+0x2c/0x38 000080050033 # [ 41.942643] CR2: 0000000000000000 CR3: 000000<4>[ 52.653846] full_proxy_write+0x53/0x80 010266e003 CR4: 00000000003706e0 # [ 41.950902] Call Trace: <4>[ 52.664634] vfs_write+0xe7/0x3b0 # [ 41.953921] ? __die_body.cold+0x1a/0x1f # [ 41.958590] <4>[ 52.674836] ksys_write+0x68/0xf0 ? no_context+0x177/0x380 # [ 41.969181] ? exc_page_fault+0x<4>[ 52.685046] do_syscall_64+0x30/0x40 53/0x170 # [ 41.973850] ? asm_exc_page_fault+0x1e/0x30 # [ <4>[ 52.695554] entry_SYSCALL_64_after_hwframe+0x62/0xc7 41.985024] ? lkdtm_ACCESS_NULL+0x14/0x53 # [ 41.989888] ?<4>[ 52.707677] RIP: 0033:0x7fe3d85da473 lkdtm_ACCESS_NULL+0x14/0x53 # [ 42.000961] direct_entry.col<4>[ 52.718213] 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 d+0x2c/0x38 # [ 42.005630] full_proxy_write+0x53/0x80 # [ <4>[ 52.745728] RSP: 002b:00007ffc508b10f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 42.010201] vfs_write+0xe7/0x3b0 # [ 42.020401] ksys_write+<4>[ 52.760693] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fe3d85da473 0x68/0xf0 # [ 42.024390] do_syscall_64+0x30/0x40 # [ 42.0<4>[ 52.775170] RDX: 0000000000000017 RSI: 00007fe3d84ce000 RDI: 0000000000000001 28668] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 42.03459<4>[ 52.789689] RBP: 00007fe3d84ce000 R08: 00007fe3d84cd010 R09: 0000000000000000 7] RIP: 0033:0x7f62f0c62473 # [ 42.038877] Code: 8b 15 21 2a <4>[ 52.804152] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 0<4>[ 52.818669] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 4 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 <4>[ 52.833173] irq event stamp: 0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 42.<4>[ 52.843086] hardirqs last enabled at (0): [<0000000000000000>] 0x0 060147] RSP: 002b:00007ffd6f91c788 EFLAGS: 00000246 ORIG_RAX: 00<4>[ 52.856610] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 00000000000001 # [ 42.068893] RAX: ffffffffffffffda RBX: 0000<4>[ 52.872290] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 00000000000c RCX: 00007f62f0c62473 # [ 42.077151] RDX: 000000<4>[ 52.887918] softirqs last disabled at (0): [<0000000000000000>] 0x0 000000000c RSI: 00007f62f0b56000 RDI: 0000000000000001 # [ 42<4>[ 52.901457] ---[ end trace fd88bdcc3c2da49b ]--- .085410] RBP: 00007f62f0b56000 R08: 00007f62f0b55010 R09: 000000<6>[ 52.913097] lkdtm: Saturation detected: still saturated 0000000000 # [ 42.093669] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 42.101927] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 42.110188] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 42.169136] CR2: 0000000000000000 # [ 42.173123] ---[ end trace fd88bdcc3c2da48c ]--- # [ 42.178568] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 42.183227] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 42.204498] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 42.210630] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 42.218888] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 42.227146] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 42.235407] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 42.243666] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 42.251925] FS: 00007f62f0d4c580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 42.261252] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 42.267957] CR2: 0000000000000000 CR3: 000000010266e003 CR4: 00000000003706e0 # [ 42.276217] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 42.286417] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1869, name: cat # [ 42.295160] INFO: lockdep is turned off. # [ 42.299827] irq event stamp: 0 # [ 42.303522] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 42.310814] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 42.320238] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 42.329661] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ <6>[ 53.162079] lkdtm: Performing direct entry REFCOUNT_ADD_SATURATED <6>[ 53.169523] lkdtm: attempting bad refcount_dec() from saturated <4>[ 53.176430] ------------[ cut here ]------------ <4>[ 53.181912] refcount_t: saturated; leaking memory. <4>[ 53.187616] WARNING: CPU: 2 PID: 2427 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 42.336951] CPU: 1 PID: 1869 Comm: cat Tainted: G D W <4>[ 53.197340] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 53.256297] CPU: 2 PID: 2427 Comm: cat Tainted: G D W 5.10.201-cip40 #1 5.10.201-cip40 #1 # [ 42.345889] Hardware name: Google Ra<4>[ 53.265249] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 mmus/Rammus, BIOS 09/04/2020 # [ 42.352984] Call Trace: # [<4>[ 53.278559] RIP: 0010:refcount_warn_saturate+0x51/0x110 <4>[ 53.290901] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d <4>[ 53.312207] RSP: 0018:ffffb83302f9fe48 EFLAGS: 00010286 <4>[ 53.318336] RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000 <4>[ 53.326600] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 <4>[ 53.334864] RBP: ffffffffb41822ab R08: 0000000000000000 R09: 0000000000000000 <4>[ 53.343127] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 <4>[ 53.351391] R13: ffffb83302f9ff10 R14: ffffb83302f9ff10 R15: ffff95e4c38dd000 <4>[ 53.359658] FS: 00007f558ade4580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 53.369020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 53.375730] CR2: 00007f558abee000 CR3: 00000001047a2002 CR4: 00000000003706e0 <4>[ 53.383994] Call Trace: <4>[ 53.387019] ? __warn+0x80/0x110 42.356003] dump_stack+0x77/0x9b # [ 42.359993] ___might_<4>[ 53.390945] ? refcount_warn_saturate+0x51/0x110 <4>[ 53.402597] ? report_bug+0x9e/0xc0 <4>[ 53.406789] ? handle_bug+0x41/0x90 <4>[ 53.411003] ? exc_invalid_op+0x14/0x70 <4>[ 53.415579] ? asm_exc_invalid_op+0x12/0x20 <4>[ 53.420575] ? refcount_warn_saturate+0x51/0x110 <4>[ 53.426056] ? refcount_warn_saturate+0x51/0x110 <4>[ 53.431535] lkdtm_REFCOUNT_ADD_SATURATED+0x3c/0x64 <4>[ 53.437282] direct_entry.cold+0x2c/0x38 <4>[ 53.441987] full_proxy_write+0x53/0x80 <4>[ 53.446595] vfs_write+0xe7/0x3b0 <4>[ 53.450617] ksys_write+0x68/0xf0 <4>[ 53.454611] do_syscall_64+0x30/0x40 <4>[ 53.458923] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 53.464856] RIP: 0033:0x7f558acfa473 <4>[ 53.469137] 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>[ 53.490411] RSP: 002b:00007ffdf18c7b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 53.499163] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f558acfa473 <4>[ 53.507426] RDX: 0000000000000017 RSI: 00007f558abee000 RDI: 0000000000000001 <4>[ 53.515690] RBP: 00007f558abee000 R08: 00007f558abed010 R09: 0000000000000000 <4>[ 53.523954] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 53.532218] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 sleep.cold+0xa6/0xb6 # [ 42.371065] exit_signals+0x1c/0x300 <4>[ 53.540533] irq event stamp: 0 # [ 42.375361] do_exit+0xc2/0xab0 # [ 42.379158] ? ksys_<4>[ 53.550443] hardirqs last enabled at (0): [<0000000000000000>] 0x0 write+0x68/0xf0 # [ 42.383356] make_task_dead+0x2f/0x30 # [<4>[ 53.563952] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 53.579597] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 53.589057] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 53.596348] ---[ end trace fd88bdcc3c2da49c ]--- <6>[ 53.601795] lkdtm: Saturation detected: still saturated 42.387734] rewind_stack_and_make_dead+0x17/0x20 # [ 42.393290] RIP: 0033:0x7f62f0c62473 # [ 42.397570] 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 # [ 42.418830] RSP: 002b:00007ffd6f91c788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 42.427576] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f62f0c62473 # [ 42.435835] RDX: 000000000000000c RSI: 00007f62f0b56000 RDI: 0000000000000001 # [ 42.444093] RBP: 00007f62f0b56000 R08: 00007f62f0b55010 R09: 0000000000000000 # [ 42.452352] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 42.460610] 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 # [ 42.585512] lkdtm: Performing direct entry WRITE_RO # [ 42.592697] lkdtm: attempting bad rodata write at ffffffffb3cf8530 # [ 42.599927] BUG: unable to handle page fault for address: ffffffffb3cf8530 # [ 42.607927] #PF: supervisor write access in kernel mode # [ 42.614053] #PF: error_code(0x0003) - permissions violati<6>[ 53.730046] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_SATURATED <6>[ 53.740239] lkdtm: attempting bad refcount_inc_not_zero() from saturated <4>[ 53.748026] ------------[ cut here ]------------ <4>[ 53.753482] refcount_t: saturated; leaking memory. <4>[ 53.759134] WARNING: CPU: 3 PID: 2460 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 on # [ 42.620564] PGD 19429067 P4D 19429067 PUD 1942a063 PMD <4>[ 53.768879] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 53.827863] CPU: 3 PID: 2460 Comm: cat Tainted: G D W 5.10.201-cip40 #1 8000000018c000e1 # [ 42.628343] Oops: 0003 [#14] SMP PTI # <4>[ 53.836806] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 53.850139] RIP: 0010:refcount_warn_saturate+0x97/0x110 <4>[ 53.856298] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d <4>[ 53.877572] RSP: 0018:ffffb8330301fe38 EFLAGS: 00010282 <4>[ 53.883699] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 <4>[ 53.891983] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 [ 42.638835] CPU: 3 PID: 1905 Comm: cat Tainted: G D W <4>[ 53.900258] RBP: ffffffffb4181ed8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 53.914726] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 53.922988] R13: ffffb8330301ff10 R14: ffffb8330301ff10 R15: ffff95e4c2c4e000 <4>[ 53.931249] FS: 00007f21e596d580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 53.940579] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 53.947288] CR2: 00007f21e5777000 CR3: 0000000106672002 CR4: 00000000003706e0 <4>[ 53.955550] Call Trace: <4>[ 53.958572] ? __warn+0x80/0x110 <4>[ 53.962496] ? refcount_warn_saturate+0x97/0x110 <4>[ 53.967942] ? report_bug+0x9e/0xc0 <4>[ 53.972128] ? handle_bug+0x41/0x90 <4>[ 53.976313] ? exc_invalid_op+0x14/0x70 <4>[ 53.980886] ? asm_exc_invalid_op+0x12/0x20 <4>[ 53.985848] ? refcount_warn_saturate+0x97/0x110 <4>[ 53.991317] ? refcount_warn_saturate+0x97/0x110 <4>[ 53.996764] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 54.003182] lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED+0x3e/0x76 <4>[ 54.009795] direct_entry.cold+0x2c/0x38 <4>[ 54.014468] full_proxy_write+0x53/0x80 <4>[ 54.019072] vfs_write+0xe7/0x3b0 <4>[ 54.023067] ksys_write+0x68/0xf0 <4>[ 54.027071] do_syscall_64+0x30/0x40 <4>[ 54.031353] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 54.037286] RIP: 0033:0x7f21e5883473 <4>[ 54.041566] 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>[ 54.062839] RSP: 002b:00007ffce8c452f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 54.071588] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f21e5883473 <4>[ 54.079850] RDX: 0000000000000020 RSI: 00007f21e5777000 RDI: 0000000000000001 <4>[ 54.088112] RBP: 00007f21e5777000 R08: 00007f21e5776010 R09: 0000000000000000 <4>[ 54.096373] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 54.104634] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 5.10.201-cip40 #1 # [ 42.647775] Hardware name: Google <4>[ 54.112901] irq event stamp: 0 <4>[ 54.122806] hardirqs last enabled at (0): [<0000000000000000>] 0x0 Rammus/Rammus, BIOS 09/04/2020 # [ 42.654874] RIP: 0010:lkdt<4>[ 54.130099] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 54.145736] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 54.155163] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 54.162453] ---[ end trace fd88bdcc3c2da49d ]--- <6>[ 54.167899] lkdtm: Saturation detected: still saturated m_WRITE_RO+0x2e/0x3a # [ 42.660126] Code: 00 48 c7 c7 c0 2f 18 b4 48 c7 c6 30 85 cf b3 e8 6c da fb ff 48 8b 05 f1 9e a9 00 ba 34 12 cd ab 48 c7 c7 f0 2f 18 b4 48 31 d0 <48> 89 05 db 9e a9 00 e9 4a da fb ff 0f 1f 44 00 00 48 8b 05 ea bc # [ 42.687608] RSP: 0018:ffffb83302757e60 EFLAGS: 00010202 # [ 42.693722] RAX: 000000000198b861 RBX: 0000000000000028 RCX: 0000000000000000 # [ 42.701982] RDX: 00000000abcd1234 RSI: ffff95e53ad9bf50 RDI: ffffffffb4182ff0 # [ 42.710242] RBP: ffffffffb41821dd R08: 0000000000000000 R09: 0000000000000000 # [ 42.718499] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000009 # [ 42.726767] R13: ffffb83302757f10 R14: ffffb83302757f10 R15: ffff95e4c2c16000 # [ 42.735026] FS: 00007f283b426580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 42.744354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 42.751059] CR2: ffffffffb3cf8530 CR3: 0000000103ffc001 CR4: 00000000003706e0 # [ 42.759318] Call Trace: # [ 42.762337] ? __die_body.cold+0x1a/0x1f # [ 42.767008] ? no_context+0x177/0x380 # [ 42.771386] ? exc_page_fault+0xd7/0x170 # [ 42.776054] ? asm_exc_page_fault+0x1e/0x30 # [ 42.781008] ? lkdtm_WRITE_RO+0x2e/0x3a # [ 42.785578] direct_entry.cold+0x2c/0x38 # [ 42.790247] full_proxy_write+0x53/0x80 # [ 42.794819] vfs_write+0xe7/0x3b0 # [ 42.798807] ksys_write+0x68/0xf0 # [ 42.802795] do_syscall_64+0x30/0x40 # [ 42.807073] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 42.813003] RIP: 0033:0x7f283b33c473 # [ 42.817282] 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 # [ 42.838545] RSP: 002b:00007ffea4a56138 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 42.847290] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f283b33c473 # [ 42.855564] RDX: 0000000000000009 RSI: 00007f283b230000 RDI: 0000000000000001 # [ 42.863825] RBP: 00007f283b230000 R08: 00007f283b22f010 R09: 0000000000000000 # [ 42.872082] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 42.880343] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 42.888606] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 42.947587] CR2: ffffffffb3cf8530 # [ 42.951574] ---[ end trace fd88bdcc3c2da48d ]--- # [ 42.957019] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 42.961685] Code: 89 ff e8 2e db 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 60 66 0b 03 # [ 42.982955] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 42.989080] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 42.997332] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 43.005590] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 43.013849] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 43.022109] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 43.030369] FS: 00007f283b426580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 43.039695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 43.046401] CR2: ffffffffb3cf8530 CR3: 0000000103ffc001 CR4: 00000000003706e0 # WRITE_RO: saw 'call trace:': ok ok 39 selftests: lkdtm: WRITE_RO.sh # selftests: lkdtm: WRITE_RO_AFTER_INIT.sh # Killed # [ 43.220928] lkdtm: Performing direct entry WRITE_RO_AFTER_INIT # [ 43.229314] lkdtm: attempting bad ro_after_init write at ffffffffb420a350 # [ 43.237225] BUG: unable to handle page fault for address: ffffffffb420a350 # [ 43.245225] #PF: supervisor write access in kernel mode # [ 43.251351] #PF: error_code(0x0003) - permissions violation # [ 43.257853] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 1052b2063 PTE 800000001920a061 # [ 43.266894] Oops: 0003 [#15] SMP PTI # [ 43.271173] CPU: 3 PID: 1941 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 43.280113] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 43.287212] RIP: 0010:lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a # [ 43.293529] Code: 30 18 b4 e9 1e da fb ff 48 c7 c7 48 30 18 b4 e8 12 da fb ff 48 8b 05 b7 bc fa 00 ba 34 12 cd ab 48 c7 c7 f0 2f 18 b4 48 31 d0 <48> 89 05 a1 bc fa 00 e9 f0 d9 fb ff 0f 1f 44 00 00 41 54 48 c7 c7 # [ 43.314802] RSP: 0018:ffffb833027f7e60 EFLAGS: 00010202 # [ 43.320918] RAX: 00000000fe67479e RBX: 0000000000000029 RCX: 0000000000000000 # [ 43.329199] RDX: 00000000abcd1234 RSI: ffff95e53ad9bf50 RDI: ffffffffb4182ff0 # [ 43.337457] RBP: ffffffffb41821e6 R08: 0000000000000000 R09: 0000000000000000 # [ 43.345716] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000014 # [ 43.353976] R13: ffffb833027f7f10 R14: ffffb833027f7f10 R15: ffff95e4c6515000 # [ 43.362236] FS: 00007fd20d86b580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 43.371566] <6>[ 54.726321] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_SATURATED <6>[ 54.735205] lkdtm: attempting bad refcount_add_not_zero() from saturated <4>[ 54.742995] ------------[ cut here ]------------ <4>[ 54.748452] refcount_t: saturated; leaking memory. <4>[ 54.754104] WARNING: CPU: 3 PID: 2493 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 43.3782<4>[ 54.763836] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 54.822827] CPU: 3 PID: 2493 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 54.831769] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 54.838867] RIP: 0010:refcount_warn_saturate+0x97/0x110 <4>[ 54.844993] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d <4>[ 54.866266] RSP: 0018:ffffb8330309fe38 EFLAGS: 00010282 <4>[ 54.872392] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 <4>[ 54.880654] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 <4>[ 54.888917] RBP: ffffffffb4181ef8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 54.897177] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 54.905437] R13: ffffb8330309ff10 R14: ffffb8330309ff10 R15: ffff95e4c3b45000 <4>[ 54.913690] FS: 00007fe84ffdb580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 <4>[ 54.923019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 54.929735] CR2: 00007fe84fde5000 CR3: 000000010476a002 CR4: 00000000003706e0 64] CR2: ffffffffb420a350 CR3: 0000000102c6c006 CR4: 00000000003<4>[ 54.937997] Call Trace: <4>[ 54.947231] ? __warn+0x80/0x110 <4>[ 54.951148] ? refcount_warn_saturate+0x97/0x110 <4>[ 54.956595] ? report_bug+0x9e/0xc0 <4>[ 54.960783] ? handle_bug+0x41/0x90 <4>[ 54.964967] ? exc_invalid_op+0x14/0x70 <4>[ 54.969539] ? asm_exc_invalid_op+0x12/0x20 <4>[ 54.974501] ? refcount_warn_saturate+0x97/0x110 <4>[ 54.979973] ? refcount_warn_saturate+0x97/0x110 <4>[ 54.985419] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 54.991837] lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED+0x3e/0x76 <4>[ 54.998449] direct_entry.cold+0x2c/0x38 706e0 # [ 43.386523] Call Trace: # [ 43.389542] ? __die_b<4>[ 55.003126] full_proxy_write+0x53/0x80 <4>[ 55.013911] vfs_write+0xe7/0x3b0 ody.cold+0x1a/0x1f # [ 43.394212] ? no_context+0x177/0x380 <4>[ 55.017929] ksys_write+0x68/0xf0 # [ 43.398590] ? exc_page_fault+0xd7/0x170 # [ 43.403257] <4>[ 55.028140] do_syscall_64+0x30/0x40 <4>[ 55.038633] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 55.044567] RIP: 0033:0x7fe84fef1473 <4>[ 55.048850] 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>[ 55.070145] RSP: 002b:00007ffde6bec2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 ? asm_exc_page_fault+0x1e/0x30 # [ 43.408219] ? lkdtm_WRITE<4>[ 55.078907] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fe84fef1473 <4>[ 55.093376] RDX: 0000000000000020 RSI: 00007fe84fde5000 RDI: 0000000000000001 <4>[ 55.101638] RBP: 00007fe84fde5000 R08: 00007fe84fde4010 R09: 0000000000000000 <4>[ 55.109901] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 55.118163] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 55.126429] irq event stamp: 0 <4>[ 55.130157] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 55.137449] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 55.146876] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 55.156303] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 55.163594] ---[ end trace fd88bdcc3c2da49e ]--- <6>[ 55.169041] lkdtm: Saturation detected: still saturated _RO_AFTER_INIT+0x4e/0x5a # [ 43.413858] direct_entry.cold+0x2c/0x38 # [ 43.418526] full_proxy_write+0x53/0x80 # [ 43.423096] vfs_write+0xe7/0x3b0 # [ 43.427077] ksys_write+0x68/0xf0 # [ 43.431065] do_syscall_64+0x30/0x40 # [ 43.435343] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 43.441273] RIP: 0033:0x7fd20d781473 # [ 43.445552] 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 # [ 43.466814] RSP: 002b:00007ffdd9e86e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 43.475559] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007fd20d781473 # [ 43.483818] RDX: 0000000000000014 RSI: 00007fd20d675000 RDI: 0000000000000001 # [ 43.492076] RBP: 00007fd20d675000 R08: 00007fd20d674010 R09: 0000000000000000 # [ 43.500335] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 43.508594] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 43.516857] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub<6>[ 55.303050] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_SATURATED cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc vide<6>[ 55.313721] lkdtm: attempting bad refcount_dec_and_test() from saturated obuf2_memops snd_compress videobuf2_v4l2 gsmi x86_pkg_temp_therm<4>[ 55.327715] ------------[ cut here ]------------ al cros_ec_dev snd_pcm_dmaengine videobuf2_common cros_usbpd_not<4>[ 55.339375] refcount_t: underflow; use-after-free. ify regmap_i2c i2c_hid coreboot_table chromeos_pstore cros_kbd_l<4>[ 55.351248] WARNING: CPU: 1 PID: 2529 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 ed_backlight # [ 43.575841] CR2: ffffffffb420a350 # [ 43.5<4>[ 55.367169] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 79829] ---[ end trace fd88bdcc3c2da48e ]--- # [ 43.585275] RI<4>[ 55.426144] CPU: 1 PID: 2529 Comm: cat Tainted: G D W 5.10.201-cip40 #1 P: 0010:lkdtm_BUG+0x5/0x10 # [ 43.589933] Code: 89 ff e8 2e d<4>[ 55.441275] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 b 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc<4>[ 55.454596] RIP: 0010:refcount_warn_saturate+0xba/0x110 <4>[ 55.466935] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1<4>[ 55.488211] RSP: 0018:ffffb8330313fe40 EFLAGS: 00010286 <4>[ 55.500547] RAX: 0000000000000000 RBX: 000000000000003a RCX: 0000000000000000 f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 60 66 0b 03 # [ 43.6<4>[ 55.508810] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 <4>[ 55.523281] RBP: ffffffffb4181f18 R08: 0000000000000000 R09: 0000000000000000 <4>[ 55.531564] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 55.539826] R13: ffffb8330313ff10 R14: ffffb8330313ff10 R15: ffff95e4c6dad000 <4>[ 55.548088] FS: 00007fe538276580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 11205] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 43.617<4>[ 55.557420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 55.570337] CR2: 00007fe538080000 CR3: 0000000105a60004 CR4: 00000000003706e0 <4>[ 55.578608] Call Trace: 329] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000<4>[ 55.581631] ? __warn+0x80/0x110 <4>[ 55.591738] ? refcount_warn_saturate+0xba/0x110 000000 # [ 43.625588] RDX: 0000000000000000 RSI: ffff95e53ac9<4>[ 55.597187] ? report_bug+0x9e/0xc0 bf50 RDI: ffffffffb3cf80b0 # [ 43.633845] RBP: ffffffffb41e83<4>[ 55.607600] ? handle_bug+0x41/0x90 <4>[ 55.617999] ? exc_invalid_op+0x14/0x70 18 R08: 0000000000000001 R09: 0000000000000001 # [ 43.642105]<4>[ 55.622575] ? asm_exc_invalid_op+0x12/0x20 R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000000000000<4>[ 55.633753] ? refcount_warn_saturate+0xba/0x110 <4>[ 55.645412] __refcount_sub_and_test.constprop.0+0x3c/0x50 <4>[ 55.651842] lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED+0x3e/0x76 <4>[ 55.658460] direct_entry.cold+0x2c/0x38 04 # [ 43.650365] R13: ffffb8330138ff10 R14: ffffb8330138ff10<4>[ 55.663135] full_proxy_write+0x53/0x80 <4>[ 55.673915] vfs_write+0xe7/0x3b0 R15: ffff95e4c29bd000 # [ 43.658624] FS: 00007fd20d86b580(0<4>[ 55.677907] ksys_write+0x68/0xf0 000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 43.<4>[ 55.688110] do_syscall_64+0x30/0x40 667953] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ <4>[ 55.698604] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 55.710750] RIP: 0033:0x7fe53818c473 43.674659] CR2: ffffffffb420a350 CR3: 0000000102c6c006 CR4: 000<4>[ 55.715034] 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>[ 55.742517] RSP: 002b:00007ffcdc822498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 00000003706e0 # [ 43.682919] BUG: sleeping function called fr<4>[ 55.751267] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fe53818c473 <4>[ 55.765740] RDX: 0000000000000020 RSI: 00007fe538080000 RDI: 0000000000000001 om invalid context at include/linux/percpu-rwsem.h:49 # [ 43.<4>[ 55.774001] RBP: 00007fe538080000 R08: 00007fe53807f010 R09: 0000000000000000 693112] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1<4>[ 55.788497] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 55.802975] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 941, name: cat # [ 43.701856] INFO: lockdep is turned off. #<4>[ 55.811242] irq event stamp: 0 <4>[ 55.821147] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 43.706523] irq event stamp: 0 # [ 43.710218] hardirqs la<4>[ 55.828442] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 st enabled at (0): [<0000000000000000>] 0x0 # [ 43.717509] h<4>[ 55.844080] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 55.859721] softirqs last disabled at (0): [<0000000000000000>] 0x0 ardirqs last disabled at (0): [] copy_process+<4>[ 55.867016] ---[ end trace fd88bdcc3c2da49f ]--- <6>[ 55.878673] lkdtm: Saturation detected: still saturated 0x65c/0x20e0 # [ 43.726934] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 43.736358] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 43.743647] CPU: 3 PID: 1941 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 43.752584] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 43.759678] Call Trace: # [ 43.762695] dump_stack+0x77/0x9b # [ 43.766683] ___might_sleep.cold+0xa6/0xb6 # [ 43.771537] exit_signals+0x1c/0x300 # [ 43.775816] do_exit+0xc2/0xab0 # [ 43.779611] ? ksys_write+0x68/0xf0 # [ 43.783794] make_task_dead+0x2f/0x30 # [ 43.788169] rewind_stack_and_make_dead+0x17/0x20 # [ 43.793710] RIP: 0033:0x7fd20d781473 # [ 43.797990] 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 # [ 43.819260] RSP: 002b:00007ffdd9e86e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 43.828004] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007fd20d781473 # [ 43.836265] RDX: 0000000000000014 RSI: 00007fd20d675000 RDI: 0000000000000001 # [ 43.844524] RBP: 00007fd20d675000 R08: 00007fd20d674010 R09: 0000000000000000 # [ 43.852784] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 43.861043] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # WRITE_RO_AFTER_INIT: saw 'call trace:': ok ok 40 selftests: lkdtm: WRITE_RO_AFTER_INIT.sh # selftests: lkdtm: WRITE_KERN.sh # Killed # [ 43.988903] lkdtm: Performing direct entry WRITE_KERN # [ 43.999582] lkdtm: attempting bad 7220121 byte write at ffffffffb325e5b9 # [ 44.013581] BUG: unable to handle page fault for address: ffffffffb325e5b9 # [ 44.027756] #PF: supervisor write access in kernel mode # [ 44.033882] #PF: error_code(0x0003) - permissions violation # [ 44.040385] PGD 19429067 P4D 19429067 PUD 1942a063 PMD 182000e1 # [ 44.047387] Oops: 0003 [#16] SMP PTI # [ 44.057880] CPU: 1 PID: 1977 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 44.066821] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 44.080134] RIP: 0010:lkdtm_WRITE_KERN+0x38/0x4e # [ 44.085579] Code: 53 48 c7 c3 b9 e5 25 b3 49 89 dc 48 89 da 49 81 ec 20 ba b7 b2 4c 89 e6 e8 c5 d9 fb ff 48 89 df 4c 89 e1 48 c7 c6 20 ba b7 b2 a4 48 c7 c7 f0 2f 18 b4 e8 aa d9 fb ff 5b 41 5c e9 b7 fe ff ff # [ 44.113062] RSP: 0018:ffffb83302867e50 EFLAGS: 00010246 # [ 44.119177] RAX: 000000000000003c RBX: ffffffffb325e5b9 RCX: 00000000006e2b99 # [ 44.127435] RDX: 0000000000000000 RSI: ffffffffb2b7ba20 RDI: ffffffffb325e5b9 # [ 44.135694] RBP: ffffffffb41821fa R08: 0000000000000000 R09: 0000000000000000 # [ 44.143952] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000000006e2b99 # [ 44.152210] R13: ffffb83302867f10 R14: ffffb83302867f10 R15: ffff95e4c4842000 # [ 44.160469] FS: 00007fca9c604580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 44.169800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 44.176506] CR2: ffffffffb325e5b9 CR3: 00000001047ae001 CR4: 00000000003706e0 # [ 44.184785] Call Trace: # [ 44.187805] ? __die_body.cold+0x1a/0x1f # [ 44.192475] ? no_context+0x177/0x380 # [ 44.203063] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 44.208805] ? exc_page_fault+0xd7/0x170 # [ 44.213472] ? asm_exc_page_fault+0x1e/0x30 # [ 44.218431] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 44.224159] ? lkdtm_SLAB_FREE_PAGE+0x40/0x40 # [ 44.229312] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 44.241262] ? lkdtm_WRITE_KERN+0x38/0x4e # [ 44.246027] direct_entry.cold+0x2c/0x38 # [ 44.250709] full_proxy_write+0x53/0x80 # [ 44.255282] vfs_write+0xe7/0x3b0 # [ 44.265481] ksys_write+0x68/0xf0 # [ 44.269470] do_syscall_64+0x30/0x40 # [ 44.273747] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 44.279677] RIP: 0033:0x7fca9c51a473 # [ 44.283955] 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 # [ 44.305226] RSP: 002b:00007fff2b9f6688 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 44.313962] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007fca9c51a473 # [ 44.322220] RDX: 000000000000000b RSI: 00007fca9c40e000 RDI: 0000000000000001 # [ 44.330479] RBP: 00007fca9c40e000 R08: 00007fca9c40d010 R09: 0000000000000000 # [ 44.338737] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 44.346996] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 44.355258] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger u<6>[ 56.385703] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_SATURATED <6>[ 56.394387] lkdtm: attempting bad refcount_sub_and_test() from saturated <4>[ 56.402223] ------------[ cut here ]------------ vcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_comp<4>[ 56.407684] refcount_t: underflow; use-after-free. <4>[ 56.419562] WARNING: CPU: 2 PID: 2565 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 ress videobuf2_v4l2 gsmi x86_pkg_temp_thermal cros_ec_dev snd_pc<4>[ 56.429285] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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>[ 56.488228] CPU: 2 PID: 2565 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 56.497195] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 56.504313] RIP: 0010:refcount_warn_saturate+0xba/0x110 m_dmaengine videobuf2_common cros_usbpd_notify regmap_i2c i2c_hi<4>[ 56.510451] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 <4>[ 56.537933] RSP: 0018:ffffb833031d7e40 EFLAGS: 00010286 <4>[ 56.544062] RAX: 0000000000000000 RBX: 000000000000003b RCX: 0000000000000000 <4>[ 56.552329] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 <4>[ 56.560599] RBP: ffffffffb4181f38 R08: 0000000000000000 R09: 0000000000000000 <4>[ 56.568861] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 56.577126] R13: ffffb833031d7f10 R14: ffffb833031d7f10 R15: ffff95e4c4777000 <4>[ 56.585391] FS: 00007f686ace3580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 <4>[ 56.594721] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 56.601433] CR2: 00007f686aaed000 CR3: 0000000106dac006 CR4: 00000000003706e0 <4>[ 56.609695] Call Trace: <4>[ 56.612719] ? __warn+0x80/0x110 d coreboot_table chromeos_pstore cros_kbd_led_backlight # [ 4<4>[ 56.616643] ? refcount_warn_saturate+0xba/0x110 <4>[ 56.628301] ? report_bug+0x9e/0xc0 <4>[ 56.632495] ? handle_bug+0x41/0x90 <4>[ 56.636712] ? exc_invalid_op+0x14/0x70 <4>[ 56.641309] ? asm_exc_invalid_op+0x12/0x20 <4>[ 56.646306] ? refcount_warn_saturate+0xba/0x110 4.414208] CR2: ffffffffb325e5b9 # [ 44.418197] ---[ end trace<4>[ 56.651760] __refcount_sub_and_test.constprop.0+0x3c/0x50 <4>[ 56.664387] lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED+0x3e/0x76 <4>[ 56.671030] direct_entry.cold+0x2c/0x38 fd88bdcc3c2da48f ]--- # [ 44.423640] RIP: 0010:lkdtm_BUG+0x5<4>[ 56.675705] full_proxy_write+0x53/0x80 /0x10 # [ 44.428308] Code: 89 ff e8 2e db 79 ff 48 c7 c0 ea f<4>[ 56.686494] vfs_write+0xe7/0x3b0 <4>[ 56.696698] ksys_write+0x68/0xf0 f ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff<4>[ 56.700691] do_syscall_64+0x30/0x40 <4>[ 56.711183] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 56.717140] RIP: 0033:0x7f686abf9473 <4>[ 56.721420] 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>[ 56.742695] RSP: 002b:00007ffde7219a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 56.751444] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f686abf9473 <4>[ 56.759707] RDX: 0000000000000020 RSI: 00007f686aaed000 RDI: 0000000000000001 <4>[ 56.767968] RBP: 00007f686aaed000 R08: 00007f686aaec010 R09: 0000000000000000 <4>[ 56.776248] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0<4>[ 56.784518] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 56.798995] irq event stamp: 0 <4>[ 56.802723] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 56.810016] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 56.819446] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 56.828873] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 56.836164] ---[ end trace fd88bdcc3c2da4a0 ]--- <6>[ 56.841610] lkdtm: Saturation detected: still saturated f 1f 44 00 00 83 05 60 66 0b 03 # [ 44.449570] RSP: 0018:ffffb8330138fe60 EFLAGS: 00010286 # [ 44.455685] RAX: ffffffffb2b7b650 RBX: 0000000000000001 RCX: 0000000000000000 # [ 44.463943] RDX: 0000000000000000 RSI: ffff95e53ac9bf50 RDI: ffffffffb3cf80b0 # [ 44.472203] RBP: ffffffffb41e8318 R08: 0000000000000001 R09: 0000000000000001 # [ 44.480480] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 44.488730] R13: ffffb8330138ff10 R14: ffffb8330138ff10 R15: ffff95e4c29bd000 # [ 44.496991] FS: 00007fca9c604580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 44.506309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 44.513015] CR2: ffffffffb325e5b9 CR3: 00000001047ae001 CR4: 00000000003706e0 # WRITE_KERN: saw 'call trace:': ok ok 41 selftests: lkdtm: WRITE_KERN.sh # selftests: lkdtm: REFCOUNT_INC_OVERFLOW.sh # [ 44.661949] lkdtm: Performing direct entry REFCOUNT_INC_OVERFLOW # [ 44.671423] lkdtm: attempting good refcount_inc() without overflow # [ 44.684838] lkdtm: attempting bad refcount_inc() overflow # [ 44.697369] ------------[ cut here ]------------ # [ 44.702818] refcount_t: saturated; leaking memory. # [ 44.708491] WARNING: CPU: 1 PID: 2013 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 44.724391] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 44.783365] CPU: 1 PID: 2013 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 44.792309] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 44.805617] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 44.817960] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d # [ 44.845448] RSP: 0018:ffffb83302907e48 EFLAGS: 00010286 # [ 44.857792] RAX: 0000000000000000 RBX: 000000000000002b RCX: 0000000000000000 # [ 44.872270] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 44.880535] RBP: ffffffffb4182205 R08: 0000000000000000 R09: 0000000000000000 # [ 44.895007] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 # [ 44.903273] R13: ffffb83302907f10 R14: ffffb83302907f10 R15: ffff95e4c5bfa000 # [ 44.917747] FS: 00007faaae5e2580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 44.933295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 44.946223] CR2: 00007faaae3ec000 CR3: 0000000103956001 CR4: 00000000003706e0 # [ 44.960702] Call Trace: # [ 44.963729] ? __warn+0x80/0x110 # [ 44.973832] ? refcount_warn_saturate+0x51/0x110 # [ 44.985495] ? report_bug+0x9e/0xc0 # [ 44.995901] ? handle_bug+0x41/0x90 # [ 45.006296] ? exc_invalid_op+0x14/0x70 # [ 45.017084] ? asm_exc_invalid_op+0x12/0x20 # [ 45.028272] ? refcount_warn_saturate+0x51/0x110 # [ 45.039924] ? refcount_warn_saturate+0x51/0x110 # [ 45.051582] lkdtm_REFCOUNT_INC_OVERFLOW+0x70/0x98 # [ 45.063437] direct_entry.cold+0x2c/0x38 # [ 45.074323] full_proxy_write+0x53/0x80 # [ 45.085111] vfs_write+0xe7/0x3b0 # [ 45.095313] ksys_write+0x68/0xf0 # [ 45.105518] do_syscall_64+0x30/0x40 # [ 45.116014] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 45.128161] RIP: 0033:0x7faaae4f8473 # [ 45.138679] 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 # [ 45.166166] RSP: 002b:00007ffda9c68658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 45.181129] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007faaae4f8473 # [ 45.195621] RDX: 0000000000000016 RSI: 00007faaae3ec000 RDI: 0000000000000001 # [ 45.210098] RBP: 00007faaae3ec000 R08: 00007faaae3eb010 R09: 0000000000000000 # [ 45.224593] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 45.239069] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 45.253554] irq event stamp: 0 # [ 45.263463] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 45.276971] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 45.292614] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 45.308255] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 45.321762] ---[ end trace fd88bdcc3c2da490 ]--- # [ 45.333424] 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 # [ 45.454667] lkdtm: Performing direct entry REFCOUNT_ADD_OVERFLOW # [ 45.463863] lkdtm: attempting good refcount_add() without overflow # [ 45.471092] lkdtm: attempting bad refcount_add() overflow # [ 45.477416] ------------[ cut here ]------------ # [ 45.482863] refcount_t: saturated; leaking memory. # [ 45.488531] WARNING: CPU: 2 PID: 2046 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 45.498256] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 45.557204] CPU: 2 PID: 2046 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 45.566177] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 45.579492] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 45.585649] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d # [ 45.606922] RSP: 0018:ffffb8330297fe48 EFLAGS: 00010286 # [ 45.613052] RAX: 0000000000000000 RBX: 000000000000002c RCX: 0000000000000000 # [ 45.621314] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # [ 45.629576] RBP: ffffffffb418221b R08: 0000000000000000 R09: 0000000000000000 # [ 45.637839] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 # [ 45.6<6>[ 57.538841] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_TO <6>[ 57.546613] lkdtm: attempting good copy_to_user of correct size 46099] R13: ffffb8330297ff10 R14: ffffb8330297ff10 R15: ffff95e4<6>[ 57.553555] lkdtm: attempting bad copy_to_user of too large size c3978000 # [ 45.654352] FS: 00007fb6bc9bb580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 45.663681] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 45.670389] CR2: 00007fb6bc7c5000 CR3: 0000000103b50006 CR4: 00000000003706e0 # [ 45.678650] Call Trace: # [ 45.681671] ? __warn+0x80/0x110 # [ 45.685585] ? refcount_warn_saturate+0x51/0x110 # [ 45.691033] ? report_bug+0x9e/0xc0 # [ 45.695220] ? handle_bug+0x41/0x90 # [ 45.699427] ? exc_invalid_op+0x14/0x70 # [ 45.704002] ? asm_exc_invalid_op+0x12/0x20 # [ 45.708965] ? refcount_warn_saturate+0x51/0x110 # [ 45.714437] ? refcount_warn_saturate+0x51/0x110 # [ 45.719883] lkdtm_REFCOUNT_ADD_OVERFLOW+0x7f/0xa7 # [ 45.725525] direct_entry.cold+0x2c/0x38 # [ 45.730196] full_proxy_write+0x53/0x80 # [ 45.734793] vfs_write+0xe7/0x3b0 # [ 45.738809] ksys_write+0x68/0xf0 # [ 45.742800] do_syscall_64+0x30/0x40 # [ 45.747092] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 45.753024] RIP: 0033:0x7fb6bc8d1473 # [ 45.757305] 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 # [ 45.778579<6>[ 57.690732] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_FROM <6>[ 57.698292] lkdtm: attempting good copy_from_user of correct size <6>[ 57.705405] lkdtm: attempting bad copy_from_user of too large size ] RSP: 002b:00007ffec1be2ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 45.787326] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fb6bc8d1473 # [ 45.795586] RDX: 0000000000000016 RSI: 00007fb6bc7c5000 RDI: 0000000000000001 # [ 45.803838] RBP: 00007fb6bc7c5000 R08: 00007fb6bc7c4010 R09: 0000000000000000 # [ 45.812101] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 45.820361] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 45.828628] irq event stamp: 0 # [ 45.832355] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 45.845863] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 45.861506] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 45.870947] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 45.878270] ---[ end trace fd88bdcc3c2da491 ]--- # [ 45.883717] lkdtm: Overflow detected: saturated # REFCOUNT_ADD_OVERFLOW: saw 'call trace:': ok ok 43 selftests: lkdtm: REFCOUNT_ADD_OVERFLOW.sh # selftests: lkdtm: REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh # [ 45.997453] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_OVERFLOW # [ 46.008857] lkdtm: attempting bad refcount_inc_not_zero() over<6>[ 57.832505] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_TO flow # [ 46.022285] ------------[ cut here ]------------ # [<6>[ 57.844446] lkdtm: attempting good copy_to_user inside whitelist 46.033943] refcount_t: saturated; leaking memory. # [ 46.0<6>[ 57.857752] lkdtm: attempting bad copy_to_user outside whitelist 45843] WARNING: CPU: 0 PID: 2079 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 46.061741] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 46.120701] CPU: 0 PID: 2079 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 46.135866] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 46.149186] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 46.161589] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d # [ 46.189039] RSP: 0018:ffffb83302a0fe38 EFLAGS: 00010282 # [ 46.201414] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 # [ 46.215871] RDX: ffff95e53ac2c620 RSI: ffff95e53ac1bf50<6>[ 57.991760] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_FROM <6>[ 58.003079] lkdtm: attempting good copy_from_user inside whitelist RDI: ffff95e53ac1bf50 # [ 46.230369] RBP: ffffffffb4181e58 R<6>[ 58.010291] lkdtm: attempting bad copy_from_user outside whitelist 08: 0000000000000000 R09: 0000000000000000 # [ 46.244830] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 46.259319] R13: ffffb83302a0ff10 R14: ffffb83302a0ff10 R15: ffff95e4c59d1000 # [ 46.273787] FS: 00007f20c12da580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 # [ 46.289333] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 46.302262] CR2: 00007f20c10e4000 CR3: 0000000105362006 CR4: 00000000003706f0 # [ 46.316750] Call Trace: # [ 46.325979] ? __warn+0x80/0x110 # [ 46.336095] ? refcount_warn_saturate+0x97/0x110 # [ 46.347751] ? report_bug+0x9e/0xc0 # [ 46.358183] ? handle_bug+0x41/0x90 # [ 46.368550] ? exc_invalid_op+0x14/0x70 # [ 46.379352] ? asm_exc_invalid_op+0x12/0x20 # [ 46.390524] ? refcount_warn_saturate+0x97/0x110 # [ 46.402214] ? refcount_warn_saturate+0x97/0x110 # [ 46.413849] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 46.426492] lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW+0x3e/0x76 # [ 46.439218] direct_entry.cold+0x2c/0x38 # [ 46.450136] full_proxy_write+0x53/0x80 # [ 46.460894] vfs_write+0xe7/0x3b0 # [ 46.471112] ksys_write+0x68/0xf0 # [ 46.481303] do_syscall_64+0x30/0x40 # [ 46.491848] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <6>[ 58.144600] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_TO # [ 46.503975] RIP: 0033:0x7f20c11f0473 # [ 46.514460] Code<6>[ 58.155245] lkdtm: good_stack: ffffb83303577e20-ffffb83303577e40 : 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f<6>[ 58.168482] lkdtm: bad_stack : ffffb83303577da8-ffffb83303577dc8 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <6>[ 58.181703] lkdtm: attempting good copy_to_user of local stack <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24<6>[ 58.194705] lkdtm: attempting bad copy_to_user of distant stack 18 # [ 46.541945] RSP: 002b:00007ffd007bfa48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 46.556901] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f20c11f0473 # [ 46.571374] RDX: 000000000000001f RSI: 00007f20c10e4000 RDI: 0000000000000001 # [ 46.585860] RBP: 00007f20c10e4000 R08: 00007f20c10e3010 R09: 0000000000000000 # [ 46.600319] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 46.614797] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 46.629324] irq event stamp: 0 # [ 46.639269] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 46.652768] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 46.668393] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 46.684075] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 46.697568] ---[ end trace fd88bdcc3c2da492 ]--- # [ 46.709230] lkdtm: Overflow detected: saturated # REFCOUNT_INC_NOT_ZERO_OVERFLOW: saw 'call trace:': ok ok 44 selftests: lkdtm: REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh # selftests: lkdtm: REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh # [ 46.843502] lkdtm: Performing direct ent<6>[ 58.325799] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_FROM ry REFCOUNT_ADD_NOT_ZERO_OVERFLOW # [ 46.853017] lkdtm: attem<6>[ 58.333434] lkdtm: good_stack: ffffb8330361fe20-ffffb8330361fe40 pting bad refcount_add_not_zero() overflow # [ 46.860252] ---<6>[ 58.346662] lkdtm: bad_stack : ffffb8330361fda8-ffffb8330361fdc8 ---------[ cut here ]------------ # [ 46.865724] refcount_t: <6>[ 58.359880] lkdtm: attempting good copy_from_user of local stack saturated; leaking memory. # [ 46.877601] WARNING: CPU: 2 PID<6>[ 58.373118] lkdtm: attempting bad copy_from_user of distant stack : 2112 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 46.893517] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 46.952492] CPU: 2 PID: 2112 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 46.961447] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 46.974754] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 46.980896] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d # [ 47.008385] RSP: 0018:ffffb83302acfe38 EFLAGS: 00010282 # [ 47.014512] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 # [ 47.022774] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # <6>[ 58.506586] lkdtm: Performing direct entry USERCOPY_STACK_BEYOND [ 47.031036] RBP: ffffffffb4181e78 R08: 0000000000000000 R09: <6>[ 58.517722] lkdtm: good_stack: ffffb83303697e20-ffffb83303697e40 0000000000000000 # [ 47.039298] R10: 00000000ffffe000 R11: 3f<6>[ 58.530989] lkdtm: bad_stack : ffffb83303697ff8-ffffb83303698018 ffffffffffffff R12: 000000000000001f # [ 47.047559] R13: ffff<6>[ 58.544224] lkdtm: attempting good copy_to_user of local stack b83302acff10 R14: ffffb83302acff10 R15: ffff95e4c5938000 # [ <6>[ 58.557229] lkdtm: attempting bad copy_to_user of distant stack 47.055836] FS: 00007fd2cdb8a580(0000) GS:ffff95e53ad00000(0000)<4>[ 58.570327] lkdtm: copy_to_user failed, but lacked Oops knlGS:0000000000000000 # [ 47.065169] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 47.078088] CR2: 00007fd2cd994000 CR3: 0000000106672005 CR4: 00000000003706e0 # [ 47.086349] Call Trace: # [ 47.089362] ? __warn+0x80/0x110 # [ 47.093284] ? refcount_warn_saturate+0x97/0x110 # [ 47.098732] ? report_bug+0x9e/0xc0 # [ 47.102918] ? handle_bug+0x41/0x90 # [ 47.107127] ? exc_invalid_op+0x14/0x70 # [ 47.111701] ? asm_exc_invalid_op+0x12/0x20 # [ 47.116664] ? refcount_warn_saturate+0x97/0x110 # [ 47.122132] ? refcount_warn_saturate+0x97/0x110 # [ 47.127580] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 47.133999] lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW+0x3e/0x76 # [ 47.140513] direct_entry.cold+0x2c/0x38 # [ 47.145185] full_proxy_write+0x53/0x80 # [ 47.149763] vfs_write+0xe7/0x3b0 # [ 47.159966] ksys_write+0x68/0xf0 # [ 47.163960] do_syscall_64+0x30/0x40 # [ 47.174455] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 47.186604] RIP: 0033:0x7fd2cdaa0473 # [ 47.190885] 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 # [ 47.212158] RSP:<6>[ 58.701793] lkdtm: Performing direct entry USERCOPY_KERNEL 002b:00007ffe0943a288 EFLAGS: 00000246 ORIG_RAX: 00000000000000<6>[ 58.713428] lkdtm: attempting good copy_to_user from kernel rodata: ffffffffb3cf8550 01 # [ 47.220906] RAX: ffffffffffffffda RBX: 000000000000001f<6>[ 58.728610] lkdtm: attempting bad copy_to_user from kernel text: ffffffffb22e2a80 RCX: 00007fd2cdaa0473 # [ 47.229165] RDX: 000000000000001f R<3>[ 58.743499] lkdtm: FAIL: survived bad copy_to_user() SI: 00007fd2cd994000 RDI: 0000000000000001 # [ 47.237418] RBP: 00007fd2cd994000 R08: 00007fd2cd993010 R09: 0000000000000000 # [ 47.245683] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 47.253945] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 47.262210] irq event stamp: 0 # [ 47.265939] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 47.273230] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 47.282658] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 47.292085] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 47.299377] ---[ end trace fd88bdcc3c2da493 ]--- # [ 47.304822] 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 # [ 47.428093] lkdtm: Performing direct entry REFCOUNT_DEC_ZERO # [ 47.434904] lkdtm: attempting good refcount_dec() # [ 47.440458] lkdtm: attempting bad refcount_dec() to zero # [ 47.446683] ------------[ cut here ]------------ # [ 47.458345] refcount_t: decrement hit 0; leaking memory. # [ 47.470814] WARNING: CPU: 2 PID: 2145 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 #<6>[ 58.884785] lkdtm: Performing direct entry STACKLEAK_ERASING [ 47.480539] Modules linked in: fuse ip_tables cros_ec_lid_an<6>[ 58.892797] lkdtm: checking unused part of the thread stack (15928 bytes)... gle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_<3>[ 58.907197] lkdtm: FAIL: the erased part is not found (checked 15928 bytes) buffer kfifo_buf industrialio snd_soc_da7219 cros_usbpd_logger c<3>[ 58.921478] lkdtm: FAIL: the thread stack is NOT properly erased ros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cr<4>[ 58.934702] CPU: 0 PID: 2941 Comm: cat Tainted: G D W 5.10.201-cip40 #1 <4>[ 58.949819] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 58.956912] Call Trace: <4>[ 58.959934] dump_stack+0x77/0x9b <4>[ 58.963928] lkdtm_STACKLEAK_ERASING+0x116/0x144 <4>[ 58.969373] direct_entry.cold+0x2c/0x38 <4>[ 58.974043] full_proxy_write+0x53/0x80 <4>[ 58.978620] vfs_write+0xe7/0x3b0 <4>[ 58.982609] ksys_write+0x68/0xf0 <4>[ 58.986597] do_syscall_64+0x30/0x40 <4>[ 58.990876] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 58.996818] RIP: 0033:0x7fe594078473 <4>[ 59.001098] 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>[ 59.022369] RSP: 002b:00007ffd4f4255f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 59.031115] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fe594078473 <4>[ 59.039374] RDX: 0000000000000012 RSI: 00007fe593f6c000 RDI: 0000000000000001 <4>[ 59.047632] RBP: 00007fe593f6c000 R08: 00007fe593f6b010 R09: 0000000000000000 <4>[ 59.055892] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 59.064153] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 os_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 47.539499] CPU: 2 PID: 2145 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 47.548479] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 47.555612] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 47.561739] Code: d8 ce 0d b4 c6 05 d5 ff 16 02 01 e8 f9 e5 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 ce 0d b4 c6 05 bc ff 16 02 01 e8 df e5 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 47.583011] RSP: 0018:ffffb83302b67e48 EFLAGS: 00010286 # [ 47.589138] RAX: 0000000000000000 RBX: 000000000000002f RCX: 0000000000000000 # [ 47.597402] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # [ 47.605668] RBP: ffffffffb4182231 R08: 0000000000000000 R09: 0000000000000000 # [ 47.620139] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 47.628414] R13: ffffb83302b67f10 R14: ffffb83302b67f10 R15: ffff95e4c5a8e000 # [ 47.636707] FS: 00007efe5d984580(0000) GS:ffff95e53ad00000(0000)<6>[ 59.193295] lkdtm: Performing direct entry CFI_FORWARD_PROTO knlGS:0000000000000000 # [ 47.646036] CS: 0010 DS: 0000 ES:<6>[ 59.203395] lkdtm: Calling matched prototype ... 0000 CR0: 0000000080050033 # [ 47.652736] CR2: 00007efe5d78e<6>[ 59.215075] lkdtm: Calling mismatched prototype ... 000 CR3: 00000001029a6005 CR4: 00000000003706e0 # [ 47.660997<6>[ 59.227026] lkdtm: Fail: survived mismatched prototype function call! ] Call Trace: # [ 47.664019] ? __warn+0x80/0x110 # [ 47.667935] ? refcount_warn_saturate+0xfb/0x110 # [ 47.673390] ? report_bug+0x9e/0xc0 # [ 47.677576] ? handle_bug+0x41/0x90 # [ 47.681759] ? exc_invalid_op+0x14/0x70 # [ 47.686335] ? asm_exc_invalid_op+0x12/0x20 # [ 47.697514] ? refcount_warn_saturate+0xfb/0x110 # [ 47.702985] ? refcount_warn_saturate+0xfb/0x110 # [ 47.708432] lkdtm_REFCOUNT_DEC_ZERO+0x4d/0xbd # [ 47.713685] direct_entry.cold+0x2c/0x38 # [ 47.718359] full_proxy_write+0x53/0x80 # [ 47.729147] vfs_write+0xe7/0x3b0 # [ 47.739355] ksys_write+0x68/0xf0 # [ 47.749559] do_syscall_64+0x30/0x40 # [ 47.753840] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 47.759772] RIP: 0033:0x7efe5d89a473 # [ 47.764052] 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 # [ 47.785330] RSP: 002b:00007ffe00b1de88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 47.794109] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007efe5d89a473 # [ 47.808575] RDX: 0000000000000012 RSI: 00007efe5d78e000 RDI: 0000000000000001 # [ 47.816838] RBP: 00007efe5d78e000 R08: 00007efe5d78d010 R09: 0000000000000000 # [ 47.825102] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 47.833363] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 47.841619] irq event stamp: 0 # [ 47.845341] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 47.852633] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 47.862060] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 47.871487] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 47.878777] ---[ end trace fd88bdcc3c2da494 ]--- # [ 47.884228] 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 # [ 48.006107] lkdtm: Performing direct entry REFCOUNT_DEC_NEGATIVE # [ 48.014393] lkdtm: attempting bad refcount_dec() below zero # [ 48.027153] ------------[ cut here ]------------ # [ 48.038784] refcount_t: decrement hit 0; leaking memory. # [ 48.051260] WARNING: CPU: 1 PID: 2181 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 48.067157] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 48.126132] CPU: 1 PID: 2181 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 48.141265] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 48.154575] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 48.166917] Code: d8 ce 0d b4 c6 05 d5 ff 16 02 01 e8 f9 e5 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 ce 0d b4 c6 05 bc ff 16 02 01 e8 df e5 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 48.188217] RSP: 0018:ffffb83302bcfe48 EFLAGS: 00010286 # [ 48.200552] RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000 # [ 48.208816] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 48.223288] RBP: ffffffffb4182243 R08: 0000000000000000 R09: 0000000000000000 # [ 48.231551] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 # [ 48.246022] R13: ffffb83302bcff10 R14: ffffb83302bcff10 R15: ffff95e4c6510000 # [ 48.254287] FS: 00007fd9290d6580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 48.269825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 48.276536] CR2: 00007fd928ee0000 CR3: 0000000103874001 CR4: 00000000003706e0 # [ 48.291008] Call Trace: # [ 48.294035] ? __warn+0x80/0x110 # [ 48.304134] ? refcount_warn_saturate+0xfb/0x110 # [ 48.309599] ? report_bug+0x9e/0xc0 # [ 48.319995] ? handle_bug+0x41/0x90 # [ 48.330393] ? exc_invalid_op+0x14/0x70 # [ 48.341179] ? asm_exc_invalid_op+0x12/0x20 # [ 48.352359] ? refcount_warn_saturate+0xfb/0x110 # [ 48.364018] ? refcount_warn_saturate+0xfb/0x110 # [ 48.369468] lkdtm_REFCOUNT_DEC_NEGATIVE+0x37/0x61 # [ 48.381317] direct_entry.cold+0x2c/0x38 # [ 48.385991] full_proxy_write+0x53/0x80 # [ 48.396770] vfs_write+0xe7/0x3b0 # [ 48.406973] ksys_write+0x68/0xf0 # [ 48.410967] do_syscall_64+0x30/0x40 # [ 48.421459] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 48.427395] RIP: 0033:0x7fd928fec473 # [ 48.437884] 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 # [ 48.459158] RSP: 002b:00007ffc0eaa6bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 48.474116] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fd928fec473 # [ 48.482381] RDX: 0000000000000016 RSI: 00007fd928ee0000 RDI: 0000000000000001 # [ 48.496850] RBP: 00007fd928ee0000 R08: 00007fd928edf010 R09: 0000000000000000 # [ 48.505116] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 48.519588] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 48.527854] irq event stamp: 0 # [ 48.537767] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 48.545061] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 48.560700] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 48.576342] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 48.583635] ---[ end trace fd88bdcc3c2da495 ]--- # [ 48.595293] lkdtm: Negative detected: saturated # REFCOUNT_DEC_NEGATIVE: saw 'Negative detected: saturated': ok ok 47 selftests: lkdtm: REFCOUNT_DEC_NEGATIVE.sh # selftests: lkdtm: REFCOUNT_DEC_AND_TEST_NEGATIVE.sh # [ 48.739415] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_NEGATIVE # [ 48.751511] lkdtm: attempting bad refcount_dec_and_test() below zero # [ 48.765113] ------------[ cut here ]------------ # [ 48.776770] refcount_t: underflow; use-after-free. # [ 48.782444] WARNING: CPU: 1 PID: 2217 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 48.798341] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 48.857294] CPU: 1 PID: 2217 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 48.872478] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 48.885789] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 48.898131] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 48.919431] RSP: 0018:ffffb83302c37e40 EFLAGS: 00010286 # [ 48.931748] RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000000000 # [ 48.946223] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 48.954488] RBP: ffffffffb4181e98 R08: 0000000000000000 R09: 0000000000000000 # [ 48.968958] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 48.977221] R13: ffffb83302c37f10 R14: ffffb83302c37f10 R15: ffff95e4c3d7d000 # [ 48.991694] FS: 00007ff7bb9ce580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 49.001025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 49.013944] CR2: 00007ff7bb7d8000 CR3: 0000000102992004 CR4: 00000000003706e0 # [ 49.022207] Call Trace: # [ 49.031458] ? __warn+0x80/0x110 # [ 49.041564] ? refcount_warn_saturate+0xba/0x110 # [ 49.047012] ? report_bug+0x9e/0xc0 # [ 49.057427] ? handle_bug+0x41/0x90 # [ 49.067826] ? exc_invalid_op+0x14/0x70 # [ 49.072404] ? asm_exc_invalid_op+0x12/0x20 # [ 49.083577] ? refcount_warn_saturate+0xba/0x110 # [ 49.095239] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 49.107873] lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE+0x3e/0x78 # [ 49.120604] direct_entry.cold+0x2c/0x38 # [ 49.125279] full_proxy_write+0x53/0x80 # [ 49.136058] vfs_write+0xe7/0x3b0 # [ 49.140052] ksys_write+0x68/0xf0 # [ 49.150254] do_syscall_64+0x30/0x40 # [ 49.160746] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 49.172895] RIP: 0033:0x7ff7bb8e4473 # [ 49.183390] 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 # [ 49.204665] RSP: 002b:00007ffc1098fde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 49.219623] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007ff7bb8e4473 # [ 49.227887] RDX: 000000000000001f RSI: 00007ff7bb7d8000 RDI: 0000000000000001 # [ 49.242360] RBP: 00007ff7bb7d8000 R08: 00007ff7bb7d7010 R09: 0000000000000000 # [ 49.250624] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 49.265095] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 49.273362] irq event stamp: 0 # [ 49.283270] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 49.290564] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 49.306206] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 49.315625] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 49.329127] ---[ end trace fd88bdcc3c2da496 ]--- # [ 49.334575] 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 # [ 49.480942] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_NEGATIVE # [ 49.490755] lkdtm: attempting bad refcount_sub_and_test() below zero # [ 49.498175] ------------[ cut here ]------------ # [ 49.503632] refcount_t: underflow; use-after-free. # [ 49.515493] WARNING: CPU: 3 PID: 2253 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 49.531420] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 49.590405] CPU: 3 PID: 2253 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 49.599378] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 49.606477] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 49.612627] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 49.633902] RSP: 0018:ffffb83302cefe40 EFLAGS: 00010286 # [ 49.640043] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 0000000000000000 # [ 49.648305] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 # [ 49.656569] RBP: ffffffffb4181eb8 R08: 0000000000000000 R09: 0000000000000000 # [ 49.664831] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 49.673094] R13: ffffb83302ceff10 R14: ffffb83302ceff10 R15: ffff95e4c3b2b000 # [ 49.681356] FS: 00007fb0f76e4580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 49.690686] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 49.697395] CR2: 00007fb0f74ee000 CR3: 00000001064e4001 CR4: 00000000003706e0 # [ 49.705656] Call Trace: # [ 49.708681] ? __warn+0x80/0x110 # [ 49.712600] ? refcount_warn_saturate+0xba/0x110 # [ 49.724257] ? report_bug+0x9e/0xc0 # [ 49.728468] ? handle_bug+0x41/0x90 # [ 49.732675] ? exc_invalid_op+0x14/0x70 # [ 49.737249] ? asm_exc_invalid_op+0x12/0x20 # [ 49.742213] ? refcount_warn_saturate+0xba/0x110 # [ 49.747686] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 49.754103] lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE+0x3e/0x7b # [ 49.760619] direct_entry.cold+0x2c/0x38 # [ 49.765290] full_proxy_write+0x53/0x80 # [ 49.769889] vfs_write+0xe7/0x3b0 # [ 49.773921] ksys_write+0x68/0xf0 # [ 49.784125] do_syscall_64+0x30/0x40 # [ 49.788410] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 49.800557] RIP: 0033:0x7fb0f75fa473 # [ 49.811054] 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 # [ 49.832329] RSP: 002b:00007fff1ae98e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 49.847289] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007fb0f75fa473 # [ 49.855553] RDX: 000000000000001f RSI: 00007fb0f74ee000 RDI: 0000000000000001 # [ 49.863815] RBP: 00007fb0f74ee000 R08: 00007fb0f74ed010 R09: 0000000000000000 # [ 49.872076] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 49.880345] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 49.888661] irq event stamp: 0 # [ 49.892370] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 49.905887] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 49.915312] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 49.924737] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 49.932027] ---[ end trace fd88bdcc3c2da497 ]--- # [ 49.937473] 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 # [ 50.076267] lkdtm: Performing direct entry REFCOUNT_INC_ZERO # [ 50.086189] lkdtm: attempting safe refcount_inc_not_zero() from zero # [ 50.093599] lkdtm: Good: zero detected # [ 50.098085] lkdtm: Correctly stayed at zero # [ 50.109263] lkdtm: attempting bad refcount_inc() from zero # [ 50.115682] ------------[ cut here ]------------ # [ 50.127336] refcount_t: addition on 0; use-after-free. # [ 50.133395] WARNING: CPU: 2 PID: 2286 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 # [ 50.143119] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 50.202061] CPU: 2 PID: 2286 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 50.211002] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 50.218100] RIP: 0010:refcount_warn_saturate+0x74/0x110 # [ 50.224227] Code: 02 01 e8 89 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d b4 c6 05 45 00 17 02 01 e8 66 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d # [ 50.245499] RSP: 0018:ffffb83302d7fe48 EFLAGS: 00010286 # [ 50.251642] RAX: 0000000000000000 RBX: 0000000000000033 RCX: 0000000000000000 # [ 50.259912] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # [ 50.274385] RBP: ffffffffb4182259 R08: 0000000000000000 R09: 0000000000000000 # [ 50.282648] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 50.290910] R13: ffffb83302d7ff10 R14: ffffb83302d7ff10 R15: ffff95e4c5b13000 # [ 50.299175] FS: 00007f18cfcab580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 50.314719] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 50.321459] CR2: 00007f18cfab5000 CR3: 0000000103d7c005 CR4: 00000000003706e0 # [ 50.329725] Call Trace: # [ 50.332749] ? __warn+0x80/0x110 # [ 50.336672] ? refcount_warn_saturate+0x74/0x110 # [ 50.348351] ? report_bug+0x9e/0xc0 # [ 50.352551] ? handle_bug+0x41/0x90 # [ 50.362937] ? exc_invalid_op+0x14/0x70 # [ 50.367512] ? asm_exc_invalid_op+0x12/0x20 # [ 50.372502] ? refcount_warn_saturate+0x74/0x110 # [ 50.377977] ? refcount_warn_saturate+0x74/0x110 # [ 50.389631] lkdtm_REFCOUNT_INC_ZERO+0x99/0xc1 # [ 50.401102] direct_entry.cold+0x2c/0x38 # [ 50.405806] full_proxy_write+0x53/0x80 # [ 50.410388] vfs_write+0xe7/0x3b0 # [ 50.414411] ksys_write+0x68/0xf0 # [ 50.418405] do_syscall_64+0x30/0x40 # [ 50.422718] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 50.428653] RIP: 0033:0x7f18cfbc1473 # [ 50.432935] 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 # [ 50.454210] RSP: 002b:00007ffe8fee6648 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 50.462959] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f18cfbc1473 # [ 50.471221] RDX: 0000000000000012 RSI: 00007f18cfab5000 RDI: 0000000000000001 # [ 50.479483] RBP: 00007f18cfab5000 R08: 00007f18cfab4010 R09: 0000000000000000 # [ 50.487747] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 50.496009] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 50.504277] irq event stamp: 0 # [ 50.508005] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 50.515299] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 50.524727] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 50.534157] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 50.541448] ---[ end trace fd88bdcc3c2da498 ]--- # [ 50.546895] 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 # [ 50.704654] lkdtm: Performing direct entry REFCOUNT_ADD_ZERO # [ 50.713904] lkdtm: attempting safe refcount_add_not_zero() from zero # [ 50.727512] lkdtm: Good: zero detected # [ 50.738202] lkdtm: Correctly stayed at zero # [ 50.749380] lkdtm: attempting bad refcount_add() from zero # [ 50.762012] ------------[ cut here ]------------ # [ 50.767462] refcount_t: addition on 0; use-after-free. # [ 50.779733] WARNING: CPU: 1 PID: 2319 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 # [ 50.795641] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 50.854605] CPU: 1 PID: 2319 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 50.869741] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 50.876842] RIP: 0010:refcount_warn_saturate+0x74/0x110 # [ 50.889177] Code: 02 01 e8 89 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d b4 c6 05 45 00 17 02 01 e8 66 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d # [ 50.910463] RSP: 0018:ffffb83302e0fe48 EFLAGS: 00010286 # [ 50.922798] RAX: 0000000000000000 RBX: 0000000000000034 RCX: 0000000000000000 # [ 50.931063] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 50.945533] RBP: ffffffffb418226b R08: 0000000000000000 R09: 0000000000000000 # [ 50.953798] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 50.968270] R13: ffffb83302e0ff10 R14: ffffb83302e0ff10 R15: ffff95e4c28e9000 # [ 50.976534] FS: 00007f1083ed8580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 50.992073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 50.998784] CR2: 00007f1083ce2000 CR3: 00000001058b6006 CR4: 00000000003706e0 # [ 51.013255] Call Trace: # [ 51.016282] ? __warn+0x80/0x110 # [ 51.026383] ? refcount_warn_saturate+0x74/0x110 # [ 51.038046] ? report_bug+0x9e/0xc0 # [ 51.048444] ? handle_bug+0x41/0x90 # [ 51.058843] ? exc_invalid_op+0x14/0x70 # [ 51.063417] ? asm_exc_invalid_op+0x12/0x20 # [ 51.074590] ? refcount_warn_saturate+0x74/0x110 # [ 51.086273] ? refcount_warn_saturate+0x74/0x110 # [ 51.091721] lkdtm_REFCOUNT_ADD_ZERO+0x99/0xc1 # [ 51.103183] direct_entry.cold+0x2c/0x38 # [ 51.114094] full_proxy_write+0x53/0x80 # [ 51.124883] vfs_write+0xe7/0x3b0 # [ 51.135089] ksys_write+0x68/0xf0 # [ 51.145293] do_syscall_64+0x30/0x40 # [ 51.155790] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 51.161726] RIP: 0033:0x7f1083dee473 # [ 51.172232] 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 # [ 51.193507] RSP: 002b:00007ffefda9c8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 51.208463] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f1083dee473 # [ 51.216727] RDX: 0000000000000012 RSI: 00007f1083ce2000 RDI: 0000000000000001 # [ 51.231199] RBP: 00007f1083ce2000 R08: 00007f1083ce1010 R09: 0000000000000000 # [ 51.239462] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 51.253934] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 51.262203] irq event stamp: 0 # [ 51.272127] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 51.279421] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 51.295057] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 51.304487] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 51.317990] ---[ end trace fd88bdcc3c2da499 ]--- # [ 51.329653] 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 # [ 51.641709] lkdtm: Performing direct entry REFCOUNT_INC_SATURATED # [ 51.649892] lkdtm: attempting bad refcount_inc() from saturated # [ 51.656820] ------------[ cut here ]------------ # [ 51.662292] refcount_t: saturated; leaking memory. # [ 51.667962] WARNING: CPU: 3 PID: 2355 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 51.683883] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 51.742872] CPU: 3 PID: 2355 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 51.751843] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 51.765149] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 51.771279] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d # [ 51.792552] RSP: 0018:ffffb83302e97e48 EFLAGS: 00010286 # [ 51.798682] RAX: 0000000000000000 RBX: 0000000000000035 RCX: 0000000000000000 # [ 51.806945] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 # [ 51.815207] RBP: ffffffffb418227d R08: 0000000000000000 R09: 0000000000000000 # [ 51.823471] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 51.831734] R13: ffffb83302e97f10 R14: ffffb83302e97f10 R15: ffff95e4c59fc000 # [ 51.839998] FS: 00007feaef1ef580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 51.849330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 51.856039] CR2: 00007feaeeff9000 CR3: 0000000105934006 CR4: 00000000003706e0 # [ 51.864302] Call Trace: # [ 51.867325] ? __warn+0x80/0x110 # [ 51.871248] ? refcount_warn_saturate+0x51/0x110 # [ 51.882902] ? report_bug+0x9e/0xc0 # [ 51.887090] ? handle_bug+0x41/0x90 # [ 51.891306] ? exc_invalid_op+0x14/0x70 # [ 51.895897] ? asm_exc_invalid_op+0x12/0x20 # [ 51.900876] ? refcount_warn_saturate+0x51/0x110 # [ 51.906352] ? refcount_warn_saturate+0x51/0x110 # [ 51.918005] lkdtm_REFCOUNT_INC_SATURATED+0x3c/0x64 # [ 51.923746] direct_entry.cold+0x2c/0x38 # [ 51.934632] full_proxy_write+0x53/0x80 # [ 51.945421] vfs_write+0xe7/0x3b0 # [ 51.955625] ksys_write+0x68/0xf0 # [ 51.959617] do_syscall_64+0x30/0x40 # [ 51.963897] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 51.969830] RIP: 0033:0x7feaef105473 # [ 51.974112] 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 # [ 51.995385] RSP: 002b:00007ffe6123fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 52.004134] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007feaef105473 # [ 52.012396] RDX: 0000000000000017 RSI: 00007feaeeff9000 RDI: 0000000000000001 # [ 52.020658] RBP: 00007feaeeff9000 R08: 00007feaeeff8010 R09: 0000000000000000 # [ 52.028919] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 52.037171] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 52.045437] irq event stamp: 0 # [ 52.049161] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 52.056452] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 52.065878] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 52.075305] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 52.082594] ---[ end trace fd88bdcc3c2da49a ]--- # [ 52.088029] 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 # [ 52.218047] lkdtm: Performing direct entry REFCOUNT_DEC_SATURATED # [ 52.225690] lkdtm: attempting bad refcount_dec() from saturated # [ 52.238826] ------------[ cut here ]------------ # [ 52.250496] refcount_t: decrement hit 0; leaking memory. # [ 52.262993] WARNING: CPU: 0 PID: 2391 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 52.278860] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 52.337899] CPU: 0 PID: 2391 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 52.353032] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 52.366349] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 52.378686] Code: d8 ce 0d b4 c6 05 d5 ff 16 02 01 e8 f9 e5 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 a8 ce 0d b4 c6 05 bc ff 16 02 01 e8 df e5 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 52.406168] RSP: 0018:ffffb83302f1fe48 EFLAGS: 00010286 # [ 52.418499] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 0000000000000000 # [ 52.432996] RDX: ffff95e53ac2c620 RSI: ffff95e53ac1bf50 RDI: ffff95e53ac1bf50 # [ 52.447498] RBP: ffffffffb4182294 R08: 0000000000000000 R09: 0000000000000000 # [ 52.461966] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 52.476475] R13: ffffb83302f1ff10 R14: ffffb83302f1ff10 R15: ffff95e4c5306000 # [ 52.490952] FS: 00007fe3d86c4580(0000) GS:ffff95e53ac00000(0000) knlGS:0000000000000000 # [ 52.506488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 52.519417] CR2: 00007fe3d84ce000 CR3: 0000000103806005 CR4: 00000000003706f0 # [ 52.533921] Call Trace: # [ 52.543166] ? __warn+0x80/0x110 # [ 52.553238] ? refcount_warn_saturate+0xfb/0x110 # [ 52.564874] ? report_bug+0x9e/0xc0 # [ 52.575269] ? handle_bug+0x41/0x90 # [ 52.585674] ? exc_invalid_op+0x14/0x70 # [ 52.596481] ? asm_exc_invalid_op+0x12/0x20 # [ 52.607658] ? refcount_warn_saturate+0xfb/0x110 # [ 52.619322] ? refcount_warn_saturate+0xfb/0x110 # [ 52.630968] lkdtm_REFCOUNT_DEC_SATURATED+0x37/0x5f # [ 52.642955] direct_entry.cold+0x2c/0x38 # [ 52.653846] full_proxy_write+0x53/0x80 # [ 52.664634] vfs_write+0xe7/0x3b0 # [ 52.674836] ksys_write+0x68/0xf0 # [ 52.685046] do_syscall_64+0x30/0x40 # [ 52.695554] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 52.707677] RIP: 0033:0x7fe3d85da473 # [ 52.718213] 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 # [ 52.745728] RSP: 002b:00007ffc508b10f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 52.760693] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fe3d85da473 # [ 52.775170] RDX: 0000000000000017 RSI: 00007fe3d84ce000 RDI: 0000000000000001 # [ 52.789689] RBP: 00007fe3d84ce000 R08: 00007fe3d84cd010 R09: 0000000000000000 # [ 52.804152] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 52.818669] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 52.833173] irq event stamp: 0 # [ 52.843086] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 52.856610] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 52.872290] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 52.887918] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 52.901457] ---[ end trace fd88bdcc3c2da49b ]--- # [ 52.913097] 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 # [ 53.162079] lkdtm: Performing direct entry REFCOUNT_ADD_SATURATED # [ 53.169523] lkdtm: attempting bad refcount_dec() from saturated # [ 53.176430] ------------[ cut here ]------------ # [ 53.181912] refcount_t: saturated; leaking memory. # [ 53.187616] WARNING: CPU: 2 PID: 2427 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 53.197340] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 53.256297] CPU: 2 PID: 2427 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 53.265249] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 53.278559] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 53.290901] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 79 00 17 02 00 75 ee 48 c7 c7 28 ce 0d b4 c6 05 69 00 17 02 01 e8 89 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 55 00 17 02 00 75 cb 48 c7 c7 50 ce 0d # [ 53.312207] RSP: 0018:ffffb83302f9fe48 EFLAGS: 00010286 # [ 53.318336] RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000 # [ 53.326600] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # [ 53.334864] RBP: ffffffffb41822ab R08: 0000000000000000 R09: 0000000000000000 # [ 53.343127] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 53.351391] R13: ffffb83302f9ff10 R14: ffffb83302f9ff10 R15: ffff95e4c38dd000 # [ 53.359658] FS: 00007f558ade4580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 53.369020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 53.375730] CR2: 00007f558abee000 CR3: 00000001047a2002 CR4: 00000000003706e0 # [ 53.383994] Call Trace: # [ 53.387019] ? __warn+0x80/0x110 # [ 53.390945] ? refcount_warn_saturate+0x51/0x110 # [ 53.402597] ? report_bug+0x9e/0xc0 # [ 53.406789] ? handle_bug+0x41/0x90 # [ 53.411003] ? exc_invalid_op+0x14/0x70 # [ 53.415579] ? asm_exc_invalid_op+0x12/0x20 # [ 53.420575] ? refcount_warn_saturate+0x51/0x110 # [ 53.426056] ? refcount_warn_saturate+0x51/0x110 # [ 53.431535] lkdtm_REFCOUNT_ADD_SATURATED+0x3c/0x64 # [ 53.437282] direct_entry.cold+0x2c/0x38 # [ 53.441987] full_proxy_write+0x53/0x80 # [ 53.446595] vfs_write+0xe7/0x3b0 # [ 53.450617] ksys_write+0x68/0xf0 # [ 53.454611] do_syscall_64+0x30/0x40 # [ 53.458923] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 53.464856] RIP: 0033:0x7f558acfa473 # [ 53.469137] 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 # [ 53.490411] RSP: 002b:00007ffdf18c7b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 53.499163] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f558acfa473 # [ 53.507426] RDX: 0000000000000017 RSI: 00007f558abee000 RDI: 0000000000000001 # [ 53.515690] RBP: 00007f558abee000 R08: 00007f558abed010 R09: 0000000000000000 # [ 53.523954] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 53.532218] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 53.540533] irq event stamp: 0 # [ 53.550443] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 53.563952] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 53.579597] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 53.589057] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 53.596348] ---[ end trace fd88bdcc3c2da49c ]--- # [ 53.601795] 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 # [ 53.730046] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_SATURATED # [ 53.740239] lkdtm: attempting bad refcount_inc_not_zero() from saturated # [ 53.748026] ------------[ cut here ]------------ # [ 53.753482] refcount_t: saturated; leaking memory. # [ 53.759134] WARNING: CPU: 3 PID: 2460 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 53.768879] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 53.827863] CPU: 3 PID: 2460 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 53.836806] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 53.850139] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 53.856298] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d # [ 53.877572] RSP: 0018:ffffb8330301fe38 EFLAGS: 00010282 # [ 53.883699] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 # [ 53.891983] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 # [ 53.900258] RBP: ffffffffb4181ed8 R08: 0000000000000000 R09: 0000000000000000 # [ 53.914726] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 53.922988] R13: ffffb8330301ff10 R14: ffffb8330301ff10 R15: ffff95e4c2c4e000 # [ 53.931249] FS: 00007f21e596d580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 53.940579] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 53.947288] CR2: 00007f21e5777000 CR3: 0000000106672002 CR4: 00000000003706e0 # [ 53.955550] Call Trace: # [ 53.958572] ? __warn+0x80/0x110 # [ 53.962496] ? refcount_warn_saturate+0x97/0x110 # [ 53.967942] ? report_bug+0x9e/0xc0 # [ 53.972128] ? handle_bug+0x41/0x90 # [ 53.976313] ? exc_invalid_op+0x14/0x70 # [ 53.980886] ? asm_exc_invalid_op+0x12/0x20 # [ 53.985848] ? refcount_warn_saturate+0x97/0x110 # [ 53.991317] ? refcount_warn_saturate+0x97/0x110 # [ 53.996764] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 54.003182] lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED+0x3e/0x76 # [ 54.009795] direct_entry.cold+0x2c/0x38 # [ 54.014468] full_proxy_write+0x53/0x80 # [ 54.019072] vfs_write+0xe7/0x3b0 # [ 54.023067] ksys_write+0x68/0xf0 # [ 54.027071] do_syscall_64+0x30/0x40 # [ 54.031353] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 54.037286] RIP: 0033:0x7f21e5883473 # [ 54.041566] 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 # [ 54.062839] RSP: 002b:00007ffce8c452f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 54.071588] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f21e5883473 # [ 54.079850] RDX: 0000000000000020 RSI: 00007f21e5777000 RDI: 0000000000000001 # [ 54.088112] RBP: 00007f21e5777000 R08: 00007f21e5776010 R09: 0000000000000000 # [ 54.096373] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 54.104634] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 54.112901] irq event stamp: 0 # [ 54.122806] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 54.130099] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 54.145736] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 54.155163] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 54.162453] ---[ end trace fd88bdcc3c2da49d ]--- # [ 54.167899] 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 # [ 54.726321] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_SATURATED # [ 54.735205] lkdtm: attempting bad refcount_add_not_zero() from saturated # [ 54.742995] ------------[ cut here ]------------ # [ 54.748452] refcount_t: saturated; leaking memory. # [ 54.754104] WARNING: CPU: 3 PID: 2493 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 54.763836] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 54.822827] CPU: 3 PID: 2493 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 54.831769] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 54.838867] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 54.844993] Code: 02 01 e8 66 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 34 00 17 02 00 75 a8 48 c7 c7 28 ce 0d b4 c6 05 24 00 17 02 01 e8 43 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d # [ 54.866266] RSP: 0018:ffffb8330309fe38 EFLAGS: 00010282 # [ 54.872392] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 # [ 54.880654] RDX: ffff95e53adac620 RSI: ffff95e53ad9bf50 RDI: ffff95e53ad9bf50 # [ 54.888917] RBP: ffffffffb4181ef8 R08: 0000000000000000 R09: 0000000000000000 # [ 54.897177] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 54.905437] R13: ffffb8330309ff10 R14: ffffb8330309ff10 R15: ffff95e4c3b45000 # [ 54.913690] FS: 00007fe84ffdb580(0000) GS:ffff95e53ad80000(0000) knlGS:0000000000000000 # [ 54.923019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 54.929735] CR2: 00007fe84fde5000 CR3: 000000010476a002 CR4: 00000000003706e0 # [ 54.937997] Call Trace: # [ 54.947231] ? __warn+0x80/0x110 # [ 54.951148] ? refcount_warn_saturate+0x97/0x110 # [ 54.956595] ? report_bug+0x9e/0xc0 # [ 54.960783] ? handle_bug+0x41/0x90 # [ 54.964967] ? exc_invalid_op+0x14/0x70 # [ 54.969539] ? asm_exc_invalid_op+0x12/0x20 # [ 54.974501] ? refcount_warn_saturate+0x97/0x110 # [ 54.979973] ? refcount_warn_saturate+0x97/0x110 # [ 54.985419] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 54.991837] lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED+0x3e/0x76 # [ 54.998449] direct_entry.cold+0x2c/0x38 # [ 55.003126] full_proxy_write+0x53/0x80 # [ 55.013911] vfs_write+0xe7/0x3b0 # [ 55.017929] ksys_write+0x68/0xf0 # [ 55.028140] do_syscall_64+0x30/0x40 # [ 55.038633] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 55.044567] RIP: 0033:0x7fe84fef1473 # [ 55.048850] 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 # [ 55.070145] RSP: 002b:00007ffde6bec2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 55.078907] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fe84fef1473 # [ 55.093376] RDX: 0000000000000020 RSI: 00007fe84fde5000 RDI: 0000000000000001 # [ 55.101638] RBP: 00007fe84fde5000 R08: 00007fe84fde4010 R09: 0000000000000000 # [ 55.109901] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 55.118163] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 55.126429] irq event stamp: 0 # [ 55.130157] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 55.137449] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 55.146876] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 55.156303] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 55.163594] ---[ end trace fd88bdcc3c2da49e ]--- # [ 55.169041] 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 # [ 55.303050] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_SATURATED # [ 55.313721] lkdtm: attempting bad refcount_dec_and_test() from saturated # [ 55.327715] ------------[ cut here ]------------ # [ 55.339375] refcount_t: underflow; use-after-free. # [ 55.351248] WARNING: CPU: 1 PID: 2529 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 55.367169] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 55.426144] CPU: 1 PID: 2529 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 55.441275] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 55.454596] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 55.466935] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 55.488211] RSP: 0018:ffffb8330313fe40 EFLAGS: 00010286 # [ 55.500547] RAX: 0000000000000000 RBX: 000000000000003a RCX: 0000000000000000 # [ 55.508810] RDX: ffff95e53acac620 RSI: ffff95e53ac9bf50 RDI: ffff95e53ac9bf50 # [ 55.523281] RBP: ffffffffb4181f18 R08: 0000000000000000 R09: 0000000000000000 # [ 55.531564] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 55.539826] R13: ffffb8330313ff10 R14: ffffb8330313ff10 R15: ffff95e4c6dad000 # [ 55.548088] FS: 00007fe538276580(0000) GS:ffff95e53ac80000(0000) knlGS:0000000000000000 # [ 55.557420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 55.570337] CR2: 00007fe538080000 CR3: 0000000105a60004 CR4: 00000000003706e0 # [ 55.578608] Call Trace: # [ 55.581631] ? __warn+0x80/0x110 # [ 55.591738] ? refcount_warn_saturate+0xba/0x110 # [ 55.597187] ? report_bug+0x9e/0xc0 # [ 55.607600] ? handle_bug+0x41/0x90 # [ 55.617999] ? exc_invalid_op+0x14/0x70 # [ 55.622575] ? asm_exc_invalid_op+0x12/0x20 # [ 55.633753] ? refcount_warn_saturate+0xba/0x110 # [ 55.645412] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 55.651842] lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED+0x3e/0x76 # [ 55.658460] direct_entry.cold+0x2c/0x38 # [ 55.663135] full_proxy_write+0x53/0x80 # [ 55.673915] vfs_write+0xe7/0x3b0 # [ 55.677907] ksys_write+0x68/0xf0 # [ 55.688110] do_syscall_64+0x30/0x40 # [ 55.698604] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 55.710750] RIP: 0033:0x7fe53818c473 # [ 55.715034] 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 # [ 55.742517] RSP: 002b:00007ffcdc822498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 55.751267] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fe53818c473 # [ 55.765740] RDX: 0000000000000020 RSI: 00007fe538080000 RDI: 0000000000000001 # [ 55.774001] RBP: 00007fe538080000 R08: 00007fe53807f010 R09: 0000000000000000 # [ 55.788497] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 55.802975] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 55.811242] irq event stamp: 0 # [ 55.821147] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 55.828442] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 55.844080] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 55.859721] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 55.867016] ---[ end trace fd88bdcc3c2da49f ]--- # [ 55.878673] 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 # [ 56.385703] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_SATURATED # [ 56.394387] lkdtm: attempting bad refcount_sub_and_test() from saturated # [ 56.402223] ------------[ cut here ]------------ # [ 56.407684] refcount_t: underflow; use-after-free. # [ 56.419562] WARNING: CPU: 2 PID: 2565 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 56.429285] 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 cros_usbpd_logger cros_ec_sysfs cros_ec_chardev cros_ec_lightbar cros_ec_debugfs cros_ec_sensorhub cros_usbpd_charger uvcvideo snd_soc_core videobuf2_vmalloc videobuf2_memops snd_compress videobuf2_v4l2 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 # [ 56.488228] CPU: 2 PID: 2565 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 56.497195] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 56.504313] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 56.510451] Code: 02 01 e8 43 e6 c5 00 0f 0b c3 cc cc cc cc 80 3d 0e 00 17 02 00 75 85 48 c7 c7 80 ce 0d b4 c6 05 fe ff 16 02 01 e8 20 e6 c5 00 <0f> 0b c3 cc cc cc cc 80 3d e9 ff 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 56.537933] RSP: 0018:ffffb833031d7e40 EFLAGS: 00010286 # [ 56.544062] RAX: 0000000000000000 RBX: 000000000000003b RCX: 0000000000000000 # [ 56.552329] RDX: ffff95e53ad2c620 RSI: ffff95e53ad1bf50 RDI: ffff95e53ad1bf50 # [ 56.560599] RBP: ffffffffb4181f38 R08: 0000000000000000 R09: 0000000000000000 # [ 56.568861] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 56.577126] R13: ffffb833031d7f10 R14: ffffb833031d7f10 R15: ffff95e4c4777000 # [ 56.585391] FS: 00007f686ace3580(0000) GS:ffff95e53ad00000(0000) knlGS:0000000000000000 # [ 56.594721] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 56.601433] CR2: 00007f686aaed000 CR3: 0000000106dac006 CR4: 00000000003706e0 # [ 56.609695] Call Trace: # [ 56.612719] ? __warn+0x80/0x110 # [ 56.616643] ? refcount_warn_saturate+0xba/0x110 # [ 56.628301] ? report_bug+0x9e/0xc0 # [ 56.632495] ? handle_bug+0x41/0x90 # [ 56.636712] ? exc_invalid_op+0x14/0x70 # [ 56.641309] ? asm_exc_invalid_op+0x12/0x20 # [ 56.646306] ? refcount_warn_saturate+0xba/0x110 # [ 56.651760] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 56.664387] lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED+0x3e/0x76 # [ 56.671030] direct_entry.cold+0x2c/0x38 # [ 56.675705] full_proxy_write+0x53/0x80 # [ 56.686494] vfs_write+0xe7/0x3b0 # [ 56.696698] ksys_write+0x68/0xf0 # [ 56.700691] do_syscall_64+0x30/0x40 # [ 56.711183] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 56.717140] RIP: 0033:0x7f686abf9473 # [ 56.721420] 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 # [ 56.742695] RSP: 002b:00007ffde7219a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 56.751444] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f686abf9473 # [ 56.759707] RDX: 0000000000000020 RSI: 00007f686aaed000 RDI: 0000000000000001 # [ 56.767968] RBP: 00007f686aaed000 R08: 00007f686aaec010 R09: 0000000000000000 # [ 56.776248] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 56.784518] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 56.798995] irq event stamp: 0 # [ 56.802723] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 56.810016] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 56.819446] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 56.828873] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 56.836164] ---[ end trace fd88bdcc3c2da4a0 ]--- # [ 56.841610] 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 # [ 57.538841] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_TO # [ 57.546613] lkdtm: attempting good copy_to_user of correct size # [ 57.553555] 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 # [ 57.690732] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_FROM # [ 57.698292] lkdtm: attempting good copy_from_user of correct size # [ 57.705405] lkdtm: attempting bad copy_from_user of too large size # USERCOPY_HEAP_SIZE_FROM: missing 'call trace:': [FAIL] not ok 62 selftests: lkdtm: USERCOPY_HEAP_SIZE_FROM.sh # exit=1 # selftests: lkdtm: USERCOPY_HEAP_WHITELIST_TO.sh # [ 57.832505] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_TO # [ 57.844446] lkdtm: attempting good copy_to_user inside whitelist # [ 57.857752] 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 # [ 57.991760] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_FROM # [ 58.003079] lkdtm: attempting good copy_from_user inside whitelist # [ 58.010291] 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 # [ 58.144600] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_TO # [ 58.155245] lkdtm: good_stack: ffffb83303577e20-ffffb83303577e40 # [ 58.168482] lkdtm: bad_stack : ffffb83303577da8-ffffb83303577dc8 # [ 58.181703] lkdtm: attempting good copy_to_user of local stack # [ 58.194705] 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 # [ 58.325799] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_FROM # [ 58.333434] lkdtm: good_stack: ffffb8330361fe20-ffffb8330361fe40 # [ 58.346662] lkdtm: bad_stack : ffffb8330361fda8-ffffb8330361fdc8 # [ 58.359880] lkdtm: attempting good copy_from_user of local stack # [ 58.373118] 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 # [ 58.506586] lkdtm: Performing direct entry USERCOPY_STACK_BEYOND # [ 58.517722] lkdtm: good_stack: ffffb83303697e20-ffffb83303697e40 # [ 58.530989] lkdtm: bad_stack : ffffb83303697ff8-ffffb83303698018 # [ 58.544224] lkdtm: attempting good copy_to_user of local stack # [ 58.557229] lkdtm: attempting bad copy_to_user of distant stack # [ 58.570327] 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 # [ 58.701793] lkdtm: Performing direct entry USERCOPY_KERNEL # [ 58.713428] lkdtm: attempting good copy_to_user from kernel rodata: ffffffffb3cf8550 # [ 58.728610] lkdtm: attempting bad copy_to_user from kernel text: ffffffffb22e2a80 # [ 58.743499] 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 # [ 58.884785] lkdtm: Performing direct entry STACKLEAK_ERASING # [ 58.892797] lkdtm: checking unused part of the thread stack (15928 bytes)... # [ 58.907197] lkdtm: FAIL: the erased part is not found (checked 15928 bytes) # [ 58.921478] lkdtm: FAIL: the thread stack is NOT properly erased # [ 58.934702] CPU: 0 PID: 2941 Comm: cat Tainted: G D W 5.10.201-cip40 #1 # [ 58.949819] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 58.956912] Call Trace: # [ 58.959934] dump_stack+0x77/0x9b # [ 58.963928] lkdtm_STACKLEAK_ERASING+0x116/0x144 # [ 58.969373] direct_entry.cold+0x2c/0x38 # [ 58.974043] full_proxy_write+0x53/0x80 # [ 58.978620] vfs_write+0xe7/0x3b0 # [ 58.982609] ksys_write+0x68/0xf0 # [ 58.986597] do_syscall_64+0x30/0x40 # [ 58.990876] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 58.996818] RIP: 0033:0x7fe594078473 # [ 59.001098] 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 # [ 59.022369] RSP: 002b:00007ffd4f4255f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 59.031115] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fe594078473 # [ 59.039374] RDX: 0000000000000012 RSI: 00007fe593f6c000 RDI: 0000000000000001 # [ 59.047632] RBP: 00007fe593f6c000 R08: 00007fe593f6b010 R09: 0000000000000000 # [ 59.055892] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 59.064153] 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 # [ 59.193295] lkdtm: Performing direct entry CFI_FORWARD_PROTO # [ 59.203395] lkdtm: Calling matched prototype ... # [ 59.215075] lkdtm: Calling mismatched prototype ... # [ 59.227026] 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_selftests_lkdtm_panic_sh skip lkdtm_BUG_sh pass lkdtm_WARNING_sh pass lkdtm_WARNING_MESSAGE_sh pass lkdtm_EXCEPTION_sh pass lkdtm_LOOP_sh_selftests_lkdtm_loop_sh skip lkdtm_EXHAUST_STACK_sh_selftests_lkdtm_exhaust_stack_sh skip lkdtm_CORRUPT_STACK_sh_selftests_lkdtm_corrupt_stack_sh skip lkdtm_CORRUPT_STACK_STRONG_sh_selftests_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_selftests_lkdtm_double_fault_sh skip lkdtm_CORRUPT_PAC_sh_selftests_lkdtm_corrupt_pac_sh skip lkdtm_UNALIGNED_LOAD_STORE_WRITE_sh_selftests_lkdtm_unaligned_load_store_write_sh skip lkdtm_OVERWRITE_ALLOCATION_sh_selftests_lkdtm_overwrite_allocation_sh skip lkdtm_WRITE_AFTER_FREE_sh_selftests_lkdtm_write_after_free_sh skip lkdtm_READ_AFTER_FREE_sh fail lkdtm_WRITE_BUDDY_AFTER_FREE_sh_selftests_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_selftests_lkdtm_softlockup_sh skip lkdtm_HARDLOCKUP_sh_selftests_lkdtm_hardlockup_sh skip lkdtm_SPINLOCKUP_sh_selftests_lkdtm_spinlockup_sh skip lkdtm_HUNG_TASK_sh_selftests_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_selftests_lkdtm_refcount_timing_sh skip lkdtm_ATOMIC_TIMING_sh_selftests_lkdtm_atomic_timing_sh skip lkdtm_USERCOPY_HEAP_SIZE_TO_sh fail lkdtm_USERCOPY_HEAP_SIZE_FROM_sh fail 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 <6>[ 66.419142] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 66.429580] pci 0000:00:1e.6: deferred probe pending + set +x / #