[Enter `^Ec?' for help] coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 bootblock starting... CPU: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz CPU: ID 806e9, Kabylake H0, ucode: 00000097 CPU: AES supported, TXT NOT supported, VT supported MCH: device id 590c (rev 02) is Kabylake-Y PCH: device id 9d4b (rev 21) is Kabylake-Y iHDCP 2.2 Premium IGD: device id 591c (rev 02) is Amberlake ULX GT2 VBOOT: Loading verstage. CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/verstage' CBFS: Found @ offset 1a0a80 size f47c coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 verstage starting... Probing TPM: . done! TPM ready after 0 ms Connected to device vid:did:rid of 1ae0:0028:00 Firmware version: B2-C:0 RO_B:0.0.11/4d655eab RW_A:0.5.6/cr50_v1.9308_87_mp.510-d2da4373 Initialized TPM device CR50 revision 0 tlcl_send_startup: Startup return code is 0 TPM: setup succeeded src/security/tpm/tss/tcg-2.0/tss.c:188 index 0x1007 return code 0 Chrome EC: UHEPI supported Phase 1 FMAP: Found "FLASH" version 1.1 at c10000. FMAP: base = ff000000 size = 1000000 #areas = 33 FMAP: area GBB found @ c11000 (978944 bytes) VB2:vb2_check_recovery() Recovery reason from previous boot: 0x0 / 0x0 Phase 2 Phase 3 FMAP: area GBB found @ c11000 (978944 bytes) VB2:vb2_report_dev_firmware() This is developer signed firmware FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) VB2:vb2_verify_keyblock() Checking key block signature... FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) FMAP: area VBLOCK_B found @ 5e8000 (65536 bytes) VB2:vb2_verify_fw_preamble() Verifying preamble. Phase 4 FMAP: area FW_MAIN_B found @ 5f8000 (4030400 bytes) VB2:vb2api_init_hash() HW crypto for hash_alg 2 not supported, using SW VB2:vb2_rsa_verify_digest() Digest check failed! VB2:vb2_fail() Need recovery, reason: 0x1b / 0x7 Saving nvdata Reboot requested (10020007) board_reset() called! full_reset() called! coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 bootblock starting... CPU: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz CPU: ID 806e9, Kabylake H0, ucode: 00000097 CPU: AES supported, TXT NOT supported, VT supported MCH: device id 590c (rev 02) is Kabylake-Y PCH: device id 9d4b (rev 21) is Kabylake-Y iHDCP 2.2 Premium IGD: device id 591c (rev 02) is Amberlake ULX GT2 VBOOT: Loading verstage. CBFS: 'Master Header Locator' located CBFS at [d00000:ffffc0) CBFS: Locating 'fallback/verstage' CBFS: Found @ offset 1a0a80 size f47c coreboot-v1.9308_26_0.0.22-6607-g034eeb8dd5 Fri Sep 4 02:38:51 UTC 2020 verstage starting... Probing TPM: . done! TPM ready after 0 ms Connected to device vid:did:rid of 1ae0:0028:00 Firmware version: B2-C:0 RO_B:0.0.11/4d655eab RW_A:0.5.6/cr50_v1.9308_87_mp.510-d2da4373 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 68378 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_A:0.5.6/cr50_v1.9308_87_mp.510-d2da4373 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...AP: slot 1 apic_id 1. done. AP: slot 3 apic_id 3. AP: slot 2 apic_id 2. 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 0x7afff400 In relocation handler: CPU 3 New SMBASE=0x7afff400 IEDBASE=0x7b400000 Writing SMRR. base = 0x7b000006, mask=0xff800800 Relocation complete. New SMBASE 0x7afff800 In relocation handler: CPU 2 New SMBASE=0x7afff800 IEDBASE=0x7b400000 Writing SMRR. base = 0x7b000006, mask=0xff800800 Relocation complete. Initializing CPU #0 CPU: vendor Intel device 806e9 CPU: family 06, model 8e, stepping 09 Setting up local APIC... apic_id: 0x00 done. Turbo is available but hidden Turbo has been enabled SGX : param.enable = 0 Skip microcode update CPU #0 initialized Initializing CPU #1 Initializing CPU #3 Initializing CPU #2 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 apic_id: 0x03 done. Setting up local APIC...Setting up local APIC...Skip microcode update apic_id: 0x02 done. CPU #3 initialized Skip microcode update apic_id: 0x01 done. CPU #2 initialized 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 VMX status: enabled, unlocked SGX: pre-conditions not met SGX: pre-conditions not met VMX status: enabled, unlocked SGX: pre-conditions not met AP call expired. 2/3 CPUs accepted. 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 385245 run 164527 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 8971 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 8962 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 8972 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 8972 usecs scan_usb_bus for USB0 port 0 done scan_bus: scanning of bus USB0 port 0 took 90950 usecs scan_usb_bus for PCI: 00:14.0 done scan_bus: scanning of bus PCI: 00:14.0 took 107733 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 14159 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 14154 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 22369 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 53523 usecs PCI: 00:1e.2 scanning... scan_generic_bus for PCI: 00:1e.2 bus: PCI: 00:1e.2[0]->SPI: 00 enabled scan_generic_bus for PCI: 00:1e.2 done scan_bus: scanning of bus PCI: 00:1e.2 took 13861 usecs PCI: 00:1f.0 scanning... scan_lpc_bus for PCI: 00:1f.0 PNP: 0c09.0 enabled scan_lpc_bus for PCI: 00:1f.0 done scan_bus: scanning of bus PCI: 00:1f.0 took 11322 usecs PCI: 00:1f.2 scanning... scan_lpc_bus for PCI: 00:1f.2 scan_lpc_bus for PCI: 00:1f.2 done scan_bus: scanning of bus PCI: 00:1f.2 took 9265 usecs PCI: 00:1f.3 scanning... scan_bus: scanning of bus PCI: 00:1f.3 took 2717 usecs PCI: 00:1f.4 scanning... scan_generic_bus for PCI: 00:1f.4 scan_generic_bus for PCI: 00:1f.4 done scan_bus: scanning of bus PCI: 00:1f.4 took 10045 usecs PCI: 00:1f.5 scanning... scan_generic_bus for PCI: 00:1f.5 scan_generic_bus for PCI: 00:1f.5 done scan_bus: scanning of bus PCI: 00:1f.5 took 10039 usecs scan_bus: scanning of bus DOMAIN: 0000 took 466011 usecs root_dev_scan_bus for Root Device done scan_bus: scanning of bus Root Device took 486122 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 825882 exit 39228 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 2114001 exit 29 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 227 run 139306 exit 19695 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 30818 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 6982 usecs PCI: 00:02.0 init ... PCI: 00:02.0 init finished in 2250 usecs PCI: 00:04.0 init ... PCI: 00:04.0 init finished in 2249 usecs PCI: 00:08.0 init ... PCI: 00:08.0 init finished in 2248 usecs PCI: 00:14.0 init ... PCI: 00:14.0 init finished in 2249 usecs PCI: 00:14.2 init ... PCI: 00:14.2 init finished in 2249 usecs PCI: 00:15.0 init ... DW I2C bus 0 at 0xd1132000 (400 KHz) PCI: 00:15.0 init finished in 5965 usecs PCI: 00:15.1 init ... DW I2C bus 1 at 0xd1133000 (400 KHz) PCI: 00:15.1 init finished in 5964 usecs PCI: 00:16.0 init ... PCI: 00:16.0 init finished in 2250 usecs PCI: 00:19.1 init ... DW I2C bus 5 at 0xd1136000 (400 KHz) PCI: 00:19.1 init finished in 5966 usecs PCI: 00:1c.0 init ... Initializing PCH PCIe bridge. PCI: 00:1c.0 init finished in 5287 usecs PCI: 00:1e.4 init ... PCI: 00:1e.4 init finished in 2247 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 23485 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 23780 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 2389 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 24424 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 2023-11-28 22:34:54 UTC POST: Unexpected post code in previous boot: 0x34 ELOG: Event(A3) added with size 11 at 2023-11-28 22:34:54 UTC ELOG: Event(92) added with size 9 at 2023-11-28 22:34:54 UTC ELOG: Event(9A) added with size 9 at 2023-11-28 22:34:54 UTC ELOG: Event(AD) added with size 10 at 2023-11-28 22:34:54 UTC ELOG: Event(9F) added with size 14 at 2023-11-28 22:34:54 UTC BS: BS_DEV_INIT times (us): entry 0 run 416971 exit 59993 ELOG: Event(A1) added with size 10 at 2023-11-28 22:34:54 UTC elog_add_boot_reason: Logged recovery mode boot (Dev-switch on), reason: 0x1b ELOG: Event(A0) added with size 9 at 2023-11-28 22:34:54 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 25553 run 3968 exit 5198 BS: BS_OS_RESUME_CHECK times (us): entry 0 run 54 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 5c91 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 537459 exit 145999 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 599 run 258855 exit 135070 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 12109978/tftp-deploy-cbz45_cg/kernel/bzImage 12109978/tftp-deploy-cbz45_cg/kernel/cmdline 12109978/tftp-deploy-cbz45_cg/ramdisk/ramdisk.cpio.gz tftpboot 192.168.201.1 12109978/tftp-deploy-cbz45_cg/kernel/bzIloy-cbz45_cg/kernel/cmdline 12109978/tftp-deploy-cbz45_cg/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:68:0b:d9 Sending DHCP discover... done. Waiting for reply... done. Sending DHCP request... done. Waiting for reply... done. My ip is 192.168.201.13 The DHCP server ip is 192.168.201.1 TFTP server IP predefined by user: 192.168.201.1 Bootfile predefined by user: 12109978/tftp-deploy-cbz45_cg/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 17276544 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: 12109978/tftp-deploy-cbz45_cg/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/12109978/extract-nfsrootfs-aanzg6z2,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: 18114128 Starting kernel ... <5>[ 0.000000] Linux version 5.10.202-cip41 (KernelCI@build-j27032-x86-64-gcc-10-x86-64-defconfig-x86-board-rj2ds) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Tue Nov 28 22:13:28 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/12109978/extract-nfsrootfs-aanzg6z2,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>[ 0.000043] last_pfn = 0x17f000 max_arch_pfn = 0x400000000 <6>[ 0.001109] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT <6>[ 0.005611] last_pfn = 0x7a998 max_arch_pfn = 0x400000000 <6>[ 0.018798] check: Scanning 1 areas for low memory corruption <6>[ 0.018808] Using GB pages for direct mapping <6>[ 0.019348] RAMDISK: [mem 0x375ff000-0x37ffffff] <6>[ 0.019354] ACPI: Early table checksum verification disabled <6>[ 0.019360] ACPI: RSDP 0x00000000000F0000 000024 (v02 CORE ) <6>[ 0.019370] ACPI: XSDT 0x000000007AA9A0E0 00006C (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019383] ACPI: FACP 0x000000007AA9E970 0000F4 (v04 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019395] ACPI: DSDT 0x000000007AA9A280 0046E3 (v05 COREv4 COREBOOT 20110725 INTL 20180531) <6>[ 0.019405] ACPI: FACS 0x000000007AA9A240 000040 <6>[ 0.019414] ACPI: FACS 0x000000007AA9A240 000040 <6>[ 0.019422] ACPI: SSDT 0x000000007AA9EA70 000EFA (v02 CORE COREBOOT 0000002A CORE 0000002A) <6>[ 0.019432] ACPI: MCFG 0x000000007AA9F970 00003C (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019441] ACPI: TPM2 0x000000007AA9F9B0 000040 (v04 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019450] ACPI: APIC 0x000000007AA9F9F0 00006C (v02 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019459] ACPI: NHLT 0x000000007AA9FA60 001B1C (v05 GOOGLE RAMMUS 00000000 CORE 00000000) <6>[ 0.019468] ACPI: DMAR 0x000000007AAA1580 000088 (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019477] ACPI: DBG2 0x000000007AAA3610 000061 (v00 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019487] ACPI: HPET 0x000000007AAA3680 000038 (v01 CORE COREBOOT 00000000 CORE 00000000) <6>[ 0.019496] ACPI: Reserving FACP table memory at [mem 0x7aa9e970-0x7aa9ea63] <6>[ 0.019500] ACPI: Reserving DSDT table memory at [mem 0x7aa9a280-0x7aa9e962] <6>[ 0.019503] ACPI: Reserving FACS table memory at [mem 0x7aa9a240-0x7aa9a27f] <6>[ 0.019507] ACPI: Reserving FACS table memory at [mem 0x7aa9a240-0x7aa9a27f] <6>[ 0.019510] ACPI: Reserving SSDT table memory at [mem 0x7aa9ea70-0x7aa9f969] <6>[ 0.019514] ACPI: Reserving MCFG table memory at [mem 0x7aa9f970-0x7aa9f9ab] <6>[ 0.019518] ACPI: Reserving TPM2 table memory at [mem 0x7aa9f9b0-0x7aa9f9ef] <6>[ 0.019521] ACPI: Reserving APIC table memory at [mem 0x7aa9f9f0-0x7aa9fa5b] <6>[ 0.019525] ACPI: Reserving NHLT table memory at [mem 0x7aa9fa60-0x7aaa157b] <6>[ 0.019528] ACPI: Reserving DMAR table memory at [mem 0x7aaa1580-0x7aaa1607] <6>[ 0.019532] ACPI: Reserving DBG2 table memory at [mem 0x7aaa3610-0x7aaa3670] <6>[ 0.019535] ACPI: Reserving HPET table memory at [mem 0x7aaa3680-0x7aaa36b7] <6>[ 0.019664] No NUMA configuration found <6>[ 0.019668] Faking a node at [mem 0x0000000000000000-0x000000017effffff] <6>[ 0.019676] NODE_DATA(0) allocated [mem 0x17effa000-0x17effdfff] <6>[ 0.019711] Zone ranges: <6>[ 0.019714] DMA [mem 0x0000000000001000-0x0000000000ffffff] <6>[ 0.019720] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] <6>[ 0.019726] Normal [mem 0x0000000100000000-0x000000017effffff] <6>[ 0.019731] Movable zone start for each node <6>[ 0.019735] Early memory node ranges <6>[ 0.019739] node 0: [mem 0x0000000000001000-0x000000000009ffff] <6>[ 0.019742] node 0: [mem 0x0000000000100000-0x000000007a997fff] <6>[ 0.019746] node 0: [mem 0x0000000100000000-0x000000017effffff] <6>[ 0.019751] Initmem setup node 0 [mem 0x0000000000001000-0x000000017effffff] <6>[ 0.019778] On node 0, zone DMA: 1 pages in unavailable ranges <6>[ 0.019813] On node 0, zone DMA: 96 pages in unavailable ranges <6>[ 0.029688] On node 0, zone Normal: 22120 pages in unavailable ranges <6>[ 0.029760] On node 0, zone Normal: 4096 pages in unavailable ranges <6>[ 0.029783] Reserving Intel graphics memory at [mem 0x7c000000-0x7fffffff] <6>[ 0.030124] ACPI: PM-Timer IO Port: 0x1808 <6>[ 0.030175] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119 <6>[ 0.030186] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) <6>[ 0.030191] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) <6>[ 0.030202] Using ACPI (MADT) for SMP configuration information <6>[ 0.030207] ACPI: HPET id: 0x8086a701 base: 0xfed00000 <6>[ 0.030213] TSC deadline timer available <6>[ 0.030217] smpboot: Allowing 4 CPUs, 0 hotplug CPUs <6>[ 0.030241] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] <6>[ 0.030246] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000fffff] <6>[ 0.030250] PM: hibernation: Registered nosave memory: [mem 0x7a998000-0x7affffff] <6>[ 0.030254] PM: hibernation: Registered nosave memory: [mem 0x7b000000-0x7fffffff] <6>[ 0.030257] PM: hibernation: Registered nosave memory: [mem 0x80000000-0xdfffffff] <6>[ 0.030260] PM: hibernation: Registered nosave memory: [mem 0xe0000000-0xe3ffffff] <6>[ 0.030264] PM: hibernation: Registered nosave memory: [mem 0xe4000000-0xfdffffff] <6>[ 0.030267] PM: hibernation: Registered nosave memory: [mem 0xfe000000-0xfe00ffff] <6>[ 0.030270] PM: hibernation: Registered nosave memory: [mem 0xfe010000-0xfed0ffff] <6>[ 0.030274] PM: hibernation: Registered nosave memory: [mem 0xfed10000-0xfed19fff] <6>[ 0.030277] PM: hibernation: Registered nosave memory: [mem 0xfed1a000-0xfed7ffff] <6>[ 0.030280] PM: hibernation: Registered nosave memory: [mem 0xfed80000-0xfed84fff] <6>[ 0.030284] PM: hibernation: Registered nosave memory: [mem 0xfed85000-0xfed8ffff] <6>[ 0.030287] PM: hibernation: Registered nosave memory: [mem 0xfed90000-0xfed91fff] <6>[ 0.030290] PM: hibernation: Registered nosave memory: [mem 0xfed92000-0xffffffff] <6>[ 0.030297] [mem 0x80000000-0xdfffffff] available for PCI devices <6>[ 0.030303] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns <6>[ 0.043483] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:4 nr_node_ids:1 <6>[ 0.043715] percpu: Embedded 59 pages/cpu s200848 r8192 d32624 u524288 <6>[ 0.043779] Built 1 zonelists, mobility grouping on. Total pages: 1006266 <6>[ 0.043783] Policy zone: Normal <5>[ 0.043794] 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/12109978/extract-nfsrootfs-aanzg6z2,tcp,hard ip=dhcp tftpserverip=192.168.201.1 <6>[ 0.044251] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) <6>[ 0.044441] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear) <6>[ 0.044513] mem auto-init: stack:off, heap alloc:off, heap free:off <6>[ 0.062569] Memory: 3876300K/4089052K available (22546K kernel code, 3713K rwdata, 10972K rodata, 2168K init, 13956K bss, 212492K reserved, 0K cma-reserved) <6>[ 0.062686] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <6>[ 0.062732] Kernel/User page tables isolation: enabled <6>[ 0.062828] ftrace: allocating 61877 entries in 242 pages <6>[ 0.115260] ftrace: allocated 242 pages with 5 groups <6>[ 0.115484] Running RCU self tests <6>[ 0.115497] rcu: Hierarchical RCU implementation. <6>[ 0.115500] rcu: RCU event tracing is enabled. <6>[ 0.115504] rcu: RCU lockdep checking is enabled. <6>[ 0.115508] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. <6>[ 0.115511] Rude variant of Tasks RCU enabled. <6>[ 0.115515] Tracing variant of Tasks RCU enabled. <6>[ 0.115519] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies. <6>[ 0.115522] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4 <6>[ 0.123424] NR_IRQS: 4352, nr_irqs: 1024, preallocated irqs: 16 <5>[ 0.123833] random: crng init done <6>[ 0.123917] Console: colour dummy device 80x25 <6>[ 0.197327] printk: console [ttyS0] enabled <4>[ 0.197716] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar <4>[ 0.198399] ... MAX_LOCKDEP_SUBCLASSES: 8 <4>[ 0.198780] ... MAX_LOCK_DEPTH: 48 <4>[ 0.199169] ... MAX_LOCKDEP_KEYS: 8192 <4>[ 0.199572] ... CLASSHASH_SIZE: 4096 <4>[ 0.199970] ... MAX_LOCKDEP_ENTRIES: 32768 <4>[ 0.200380] ... MAX_LOCKDEP_CHAINS: 65536 <4>[ 0.200784] ... CHAINHASH_SIZE: 32768 <4>[ 0.201195] memory used by lock dependency info: 6365 kB <4>[ 0.201684] memory used for stack traces: 4224 kB <4>[ 0.202122] per task-struct memory footprint: 1920 bytes <6>[ 0.202657] ACPI: Core revision 20200925 <6>[ 0.203206] hpet: HPET dysfunctional in PC10. Force disabled. <6>[ 0.203726] APIC: Switch to symmetric I/O mode setup <6>[ 0.208200] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x170fff30cc4, max_idle_ns: 440795237869 ns <6>[ 0.209137] Calibrating delay loop (skipped), value calculated using timer frequency.. 3199.92 BogoMIPS (lpj=1599960) <6>[ 0.210122] mce: CPU0: Thermal monitoring enabled (TM1) <6>[ 0.210122] process: using mwait in idle threads <6>[ 0.210122] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 <6>[ 0.210122] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 <6>[ 0.210122] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization <6>[ 0.210122] Spectre V2 : Mitigation: IBRS <6>[ 0.210122] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch <6>[ 0.210122] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT <6>[ 0.210122] RETBleed: Mitigation: IBRS <6>[ 0.210122] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier <6>[ 0.210122] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl <6>[ 0.210122] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp <6>[ 0.210122] MDS: Vulnerable: Clear CPU buffers attempted, no microcode <6>[ 0.210122] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode <6>[ 0.210122] SRBDS: Vulnerable: No microcode <6>[ 0.210122] GDS: Vulnerable: No microcode <6>[ 0.210122] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' <6>[ 0.210122] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' <6>[ 0.210122] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' <6>[ 0.210122] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers' <6>[ 0.210122] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR' <6>[ 0.210122] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 <6>[ 0.210122] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64 <6>[ 0.210122] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64 <6>[ 0.210122] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format. <4>[ 0.210122] ------------[ cut here ]------------ <4>[ 0.210122] missing return thunk: lkdtm_rodata_do_nothing+0x0/0x10-lkdtm_rodata_do_nothing+0x5/0x10: e9 00 00 00 00 <4>[ 0.210122] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:725 apply_returns+0x1f5/0x220 <4>[ 0.210122] Modules linked in: <4>[ 0.210122] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.202-cip41 #1 <4>[ 0.210122] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 0.210122] RIP: 0010:apply_returns+0x1f5/0x220 <4>[ 0.210122] 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 88 f0 27 89 c6 05 00 15 67 02 01 e8 25 0c 16 01 <0f> 0b e9 b9 fe ff ff 44 89 f9 c7 00 cc cc cc cc c7 44 08 fc cc cc <4>[ 0.210122] RSP: 0000:ffffffff89603e28 EFLAGS: 00010282 <4>[ 0.210122] RAX: 0000000000000000 RBX: ffffffff8a22c1f0 RCX: 0000000000000000 <4>[ 0.210122] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff87377be1 <4>[ 0.210122] RBP: ffffffff88ef8800 R08: 0000000000000001 R09: 0000000000000001 <4>[ 0.210122] R10: ffffffff8968fee0 R11: 3fffffffffffffff R12: ffffffff8a245524 <4>[ 0.210122] R13: cccccccccccccccc R14: ffffffff88ef8805 R15: 0000000000000004 <4>[ 0.210122] FS: 0000000000000000(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 0.210122] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 0.210122] CR2: ffff90a8befff000 CR3: 0000000026c26001 CR4: 00000000003706f0 <4>[ 0.210122] Call Trace: <4>[ 0.210122] ? __warn+0x80/0x110 <4>[ 0.210122] ? apply_returns+0x1f5/0x220 <4>[ 0.210122] ? report_bug+0x9e/0xc0 <4>[ 0.210122] ? handle_bug+0x41/0x90 <4>[ 0.210122] ? exc_invalid_op+0x14/0x70 <4>[ 0.210122] ? asm_exc_invalid_op+0x12/0x20 <4>[ 0.210122] ? console_unlock+0x4d1/0x5f0 <4>[ 0.210122] ? apply_returns+0x1f5/0x220 <4>[ 0.210122] ? apply_returns+0x1f5/0x220 <4>[ 0.210122] alternative_instructions+0x7d/0x143 <4>[ 0.210122] arch_cpu_finalize_init+0x28/0x47 <4>[ 0.210122] start_kernel+0x4a3/0x54d <4>[ 0.210122] secondary_startup_64_no_verify+0xc2/0xcb <4>[ 0.210122] irq event stamp: 200411 <4>[ 0.210122] hardirqs last enabled at (200419): [] console_unlock+0x4d1/0x5f0 <4>[ 0.210122] hardirqs last disabled at (200426): [] console_unlock+0x444/0x5f0 <4>[ 0.210122] softirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 0.210122] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 0.210122] ---[ end trace 4d2843ad41e5eeeb ]--- <6>[ 0.210122] Freeing SMP alternatives memory: 48K <6>[ 0.210122] pid_max: default: 32768 minimum: 301 <6>[ 0.210122] LSM: Security Framework initializing <6>[ 0.210122] SELinux: Initializing. <6>[ 0.210122] LSM support for eBPF active <6>[ 0.210122] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) <6>[ 0.210122] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear) <6>[ 0.210122] smpboot: CPU0: Intel(R) Core(TM) m3-8100Y CPU @ 1.10GHz (family: 0x6, model: 0x8e, stepping: 0x9) <6>[ 0.210599] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver. <6>[ 0.211134] ... version: 4 <6>[ 0.211511] ... bit width: 48 <6>[ 0.211892] ... generic registers: 4 <6>[ 0.212127] ... value mask: 0000ffffffffffff <6>[ 0.212610] ... max period: 00007fffffffffff <6>[ 0.213092] ... fixed-purpose events: 3 <6>[ 0.213126] ... event mask: 000000070000000f <6>[ 0.214026] rcu: Hierarchical SRCU implementation. <6>[ 0.215766] smp: Bringing up secondary CPUs ... <6>[ 0.216685] x86: Booting SMP configuration: <6>[ 0.217094] .... node #0, CPUs: #1 <4>[ 0.218207] 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>[ 0.219149] 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>[ 0.220637] #2 #3 <6>[ 0.222546] smp: Brought up 1 node, 4 CPUs <6>[ 0.223127] smpboot: Max logical packages: 1 <6>[ 0.223528] smpboot: Total of 4 processors activated (12799.68 BogoMIPS) <6>[ 0.226440] devtmpfs: initialized <6>[ 0.226705] x86/mm: Memory block size: 128MB <6>[ 0.230162] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns <6>[ 0.230988] futex hash table entries: 1024 (order: 5, 131072 bytes, linear) <6>[ 0.231530] pinctrl core: initialized pinctrl subsystem <6>[ 0.232879] PM: RTC time: 22:35:08, date: 2023-11-28 <6>[ 0.233628] NET: Registered protocol family 16 <6>[ 0.234656] audit: initializing netlink subsys (disabled) <5>[ 0.235164] audit: type=2000 audit(1701210908.026:1): state=initialized audit_enabled=0 res=1 <6>[ 0.235717] thermal_sys: Registered thermal governor 'step_wise' <6>[ 0.235926] thermal_sys: Registered thermal governor 'user_space' <6>[ 0.236196] cpuidle: using governor menu <6>[ 0.237246] ACPI: bus type PCI registered <6>[ 0.237929] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xe0000000-0xe3ffffff] (base 0xe0000000) <6>[ 0.238133] PCI: MMCONFIG at [mem 0xe0000000-0xe3ffffff] reserved in E820 <6>[ 0.238767] PCI: Using configuration type 1 for base access <6>[ 0.267835] Kprobes globally optimized <6>[ 0.268236] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages <6>[ 0.269133] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages <6>[ 0.269890] cryptomgr_test (39) used greatest stack depth: 15272 bytes left <6>[ 0.270760] cryptomgr_test (38) used greatest stack depth: 14880 bytes left <6>[ 0.272458] ACPI: Added _OSI(Module Device) <6>[ 0.273134] ACPI: Added _OSI(Processor Device) <6>[ 0.273548] ACPI: Added _OSI(3.0 _SCP Extensions) <6>[ 0.273981] ACPI: Added _OSI(Processor Aggregator Device) <6>[ 0.274128] ACPI: Added _OSI(Linux-Dell-Video) <6>[ 0.274542] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) <6>[ 0.275025] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) <6>[ 0.285869] ACPI: 2 ACPI AML tables successfully acquired and loaded <6>[ 0.292283] ACPI: EC: EC started <6>[ 0.292613] ACPI: EC: interrupt blocked <6>[ 0.293581] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 <6>[ 0.294049] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC used to handle transactions <6>[ 0.295127] ACPI: Interpreter enabled <6>[ 0.295532] ACPI: (supports S0 S3 S4 S5) <6>[ 0.295902] ACPI: Using IOAPIC for interrupt routing <6>[ 0.296188] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug <6>[ 0.310505] ACPI: Power Resource [PRIC] (on) <6>[ 0.438351] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) <6>[ 0.438918] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] <6>[ 0.439365] acpi PNP0A08:00: _OSC: OS now controls [PME PCIeCapability LTR] <6>[ 0.440046] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge <6>[ 0.441623] PCI host bridge to bus 0000:00 <6>[ 0.442012] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] <6>[ 0.443129] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] <6>[ 0.443737] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] <6>[ 0.444127] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000c3fff window] <6>[ 0.444791] pci_bus 0000:00: root bus resource [mem 0x000c4000-0x000c7fff window] <6>[ 0.445127] pci_bus 0000:00: root bus resource [mem 0x000c8000-0x000cbfff window] <6>[ 0.445792] pci_bus 0000:00: root bus resource [mem 0x000cc000-0x000cffff window] <6>[ 0.447128] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000d3fff window] <6>[ 0.447793] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff window] <6>[ 0.448127] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff window] <6>[ 0.448792] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff window] <6>[ 0.449127] pci_bus 0000:00: root bus resource [mem 0x000e0000-0x000e3fff window] <6>[ 0.449792] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff window] <6>[ 0.451128] pci_bus 0000:00: root bus resource [mem 0x000e8000-0x000ebfff window] <6>[ 0.451792] pci_bus 0000:00: root bus resource [mem 0x000ec000-0x000effff window] <6>[ 0.452127] pci_bus 0000:00: root bus resource [mem 0x000f0000-0x000fffff window] <6>[ 0.452791] pci_bus 0000:00: root bus resource [mem 0x80000001-0xdfffffff window] <6>[ 0.453127] pci_bus 0000:00: root bus resource [mem 0x800000000-0xbffffffff window] <6>[ 0.453806] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window] <6>[ 0.455128] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed44fff window] <6>[ 0.455793] pci_bus 0000:00: root bus resource [bus 00-ff] <6>[ 0.456207] pci 0000:00:00.0: [8086:590c] type 00 class 0x060000 <6>[ 0.457615] pci 0000:00:02.0: [8086:591c] type 00 class 0x030000 <6>[ 0.458147] pci 0000:00:02.0: reg 0x10: [mem 0xd0000000-0xd0ffffff 64bit] <6>[ 0.458766] pci 0000:00:02.0: reg 0x18: [mem 0xc0000000-0xcfffffff 64bit pref] <6>[ 0.459134] pci 0000:00:02.0: reg 0x20: [io 0x1c00-0x1c3f] <6>[ 0.460170] pci 0000:00:04.0: [8086:1903] type 00 class 0x118000 <6>[ 0.460732] pci 0000:00:04.0: reg 0x10: [mem 0xd1120000-0xd1127fff 64bit] <6>[ 0.461754] pci 0000:00:08.0: [8086:1911] type 00 class 0x088000 <6>[ 0.462149] pci 0000:00:08.0: reg 0x10: [mem 0xd1130000-0xd1130fff 64bit] <6>[ 0.463301] pci 0000:00:14.0: [8086:9d2f] type 00 class 0x0c0330 <6>[ 0.463870] pci 0000:00:14.0: reg 0x10: [mem 0xd1100000-0xd110ffff 64bit] <6>[ 0.465262] pci 0000:00:14.0: PME# supported from D3hot D3cold <6>[ 0.466410] pci 0000:00:14.2: [8086:9d31] type 00 class 0x118000 <6>[ 0.466978] pci 0000:00:14.2: reg 0x10: [mem 0xd1131000-0xd1131fff 64bit] <6>[ 0.467694] pci 0000:00:15.0: [8086:9d60] type 00 class 0x118000 <6>[ 0.468167] pci 0000:00:15.0: reg 0x10: [mem 0xd1132000-0xd1132fff 64bit] <6>[ 0.469447] pci 0000:00:15.1: [8086:9d61] type 00 class 0x118000 <6>[ 0.470024] pci 0000:00:15.1: reg 0x10: [mem 0xd1133000-0xd1133fff 64bit] <6>[ 0.471837] pci 0000:00:19.0: [8086:9d66] type 00 class 0x118000 <6>[ 0.472168] pci 0000:00:19.0: reg 0x10: [mem 0xfe034000-0xfe034fff 64bit] <6>[ 0.472795] pci 0000:00:19.0: reg 0x18: [mem 0xd1135000-0xd1135fff 64bit] <6>[ 0.473783] pci 0000:00:19.1: [8086:9d65] type 00 class 0x118000 <6>[ 0.475168] pci 0000:00:19.1: reg 0x10: [mem 0xd1136000-0xd1136fff 64bit] <6>[ 0.476490] pci 0000:00:1c.0: [8086:9d10] type 01 class 0x060400 <6>[ 0.477201] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold <6>[ 0.478371] pci 0000:00:1e.0: [8086:9d27] type 00 class 0x118000 <6>[ 0.478947] pci 0000:00:1e.0: reg 0x10: [mem 0xd1137000-0xd1137fff 64bit] <6>[ 0.479808] pci 0000:00:1e.2: [8086:9d29] type 00 class 0x118000 <6>[ 0.480168] pci 0000:00:1e.2: reg 0x10: [mem 0xd1138000-0xd1138fff 64bit] <6>[ 0.481445] pci 0000:00:1e.4: [8086:9d2b] type 00 class 0x080501 <6>[ 0.482015] pci 0000:00:1e.4: reg 0x10: [mem 0xd1139000-0xd1139fff 64bit] <6>[ 0.483882] pci 0000:00:1e.6: [8086:9d2d] type 00 class 0x080501 <6>[ 0.484161] pci 0000:00:1e.6: reg 0x10: [mem 0xd113a000-0xd113afff 64bit] <6>[ 0.485415] pci 0000:00:1f.0: [8086:9d4b] type 00 class 0x060100 <6>[ 0.486588] pci 0000:00:1f.2: [8086:9d21] type 00 class 0x058000 <6>[ 0.487161] pci 0000:00:1f.2: reg 0x10: [mem 0xd1128000-0xd112bfff] <6>[ 0.488344] pci 0000:00:1f.3: [8086:9d71] type 00 class 0x040100 <6>[ 0.488917] pci 0000:00:1f.3: reg 0x10: [mem 0xd112c000-0xd112ffff 64bit] <6>[ 0.489180] pci 0000:00:1f.3: reg 0x20: [mem 0xd1110000-0xd111ffff 64bit] <6>[ 0.489874] pci 0000:00:1f.3: PME# supported from D3hot D3cold <6>[ 0.491743] pci 0000:00:1f.4: [8086:9d23] type 00 class 0x0c0500 <6>[ 0.492191] pci 0000:00:1f.4: reg 0x10: [mem 0xd113c000-0xd113c0ff 64bit] <6>[ 0.492868] pci 0000:00:1f.4: reg 0x20: [io 0xefa0-0xefbf] <6>[ 0.493730] pci 0000:00:1f.5: [8086:9d24] type 00 class 0x000000 <6>[ 0.494155] pci 0000:00:1f.5: reg 0x10: [mem 0xfe010000-0xfe010fff] <6>[ 0.495630] pci 0000:01:00.0: [8086:095a] type 00 class 0x028000 <6>[ 0.496320] pci 0000:01:00.0: reg 0x10: [mem 0xd1000000-0xd1001fff 64bit] <6>[ 0.497714] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold <6>[ 0.499827] pci 0000:00:1c.0: PCI bridge to [bus 01] <6>[ 0.501141] pci 0000:00:1c.0: bridge window [mem 0xd1000000-0xd10fffff] <6>[ 0.502837] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.503361] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 12 14 15) <6>[ 0.504205] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.505071] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.505350] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.506214] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.507075] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.508349] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 12 14 15) *11 <6>[ 0.513943] ACPI: EC: interrupt unblocked <6>[ 0.514126] ACPI: EC: event unblocked <6>[ 0.514484] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 <6>[ 0.514950] ACPI: EC: GPE=0x6e <6>[ 0.515130] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC initialization complete <6>[ 0.515760] ACPI: \_SB_.PCI0.LPCB.EC0_: EC: Used to handle transactions and events <6>[ 0.517476] iommu: Default domain type: Translated <6>[ 0.518292] pci 0000:00:02.0: vgaarb: setting as boot VGA device <6>[ 0.518741] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none <6>[ 0.519150] pci 0000:00:02.0: vgaarb: bridge control possible <6>[ 0.519670] vgaarb: loaded <5>[ 0.520432] SCSI subsystem initialized <6>[ 0.521309] ACPI: bus type USB registered <6>[ 0.522258] usbcore: registered new interface driver usbfs <6>[ 0.522806] usbcore: registered new interface driver hub <6>[ 0.523160] usbcore: registered new device driver usb <6>[ 0.523715] mc: Linux media interface: v0.10 <6>[ 0.524137] videodev: Linux video capture interface: v2.00 <6>[ 0.524664] pps_core: LinuxPPS API ver. 1 registered <6>[ 0.525120] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <6>[ 0.526138] PTP clock support registered <6>[ 0.526556] Advanced Linux Sound Architecture Driver Initialized. <6>[ 0.527958] NetLabel: Initializing <6>[ 0.528127] NetLabel: domain hash size = 128 <6>[ 0.528532] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO <6>[ 0.529113] NetLabel: unlabeled traffic allowed by default <6>[ 0.530241] PCI: Using ACPI for IRQ routing <6>[ 0.538314] clocksource: Switched to clocksource tsc-early <5>[ 0.843369] VFS: Disk quotas dquot_6.6.0 <6>[ 0.843778] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) <6>[ 0.844729] pnp: PnP ACPI init <6>[ 0.845633] system 00:00: [mem 0xfed10000-0xfed17fff] has been reserved <6>[ 0.846230] system 00:00: [mem 0xfed18000-0xfed18fff] has been reserved <6>[ 0.846835] system 00:00: [mem 0xfed19000-0xfed19fff] has been reserved <6>[ 0.847437] system 00:00: [mem 0xe0000000-0xe3ffffff] has been reserved <6>[ 0.848032] system 00:00: [mem 0xfed20000-0xfed3ffff] has been reserved <6>[ 0.848633] system 00:00: [mem 0xfed90000-0xfed93fff] could not be reserved <6>[ 0.849256] system 00:00: [mem 0xfed45000-0xfed8ffff] could not be reserved <6>[ 0.849884] system 00:00: [mem 0xff000000-0xffffffff] has been reserved <6>[ 0.850485] system 00:00: [mem 0xfee00000-0xfeefffff] has been reserved <6>[ 0.851079] system 00:00: [mem 0xfed00000-0xfed003ff] has been reserved <6>[ 0.852372] system 00:01: [io 0x1800-0x18fe] has been reserved <6>[ 0.853187] system 00:03: [io 0x0900-0x09fe] has been reserved <6>[ 0.853916] system 00:04: [io 0x0200] has been reserved <6>[ 0.854413] system 00:04: [io 0x0204] has been reserved <6>[ 0.854900] system 00:04: [io 0x0800-0x087f] has been reserved <6>[ 0.855442] system 00:04: [io 0x0880-0x08ff] has been reserved <6>[ 0.857891] pnp: PnP ACPI: found 6 devices <6>[ 0.869806] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns <6>[ 0.870686] NET: Registered protocol family 2 <6>[ 0.871218] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear) <6>[ 0.873166] tcp_listen_portaddr_hash hash table entries: 2048 (order: 5, 163840 bytes, linear) <6>[ 0.874114] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear) <6>[ 0.874987] TCP bind hash table entries: 32768 (order: 9, 2359296 bytes, linear) <6>[ 0.877203] TCP: Hash tables configured (established 32768 bind 32768) <6>[ 0.878063] MPTCP token hash table entries: 4096 (order: 6, 360448 bytes, linear) <6>[ 0.878965] UDP hash table entries: 2048 (order: 6, 327680 bytes, linear) <6>[ 0.879794] UDP-Lite hash table entries: 2048 (order: 6, 327680 bytes, linear) <6>[ 0.880752] NET: Registered protocol family 1 <6>[ 0.881703] RPC: Registered named UNIX socket transport module. <6>[ 0.882258] RPC: Registered udp transport module. <6>[ 0.882707] RPC: Registered tcp transport module. <6>[ 0.883141] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 0.884185] NET: Registered protocol family 44 <6>[ 0.884628] pci 0000:00:1c.0: PCI bridge to [bus 01] <6>[ 0.885092] pci 0000:00:1c.0: bridge window [mem 0xd1000000-0xd10fffff] <6>[ 0.885725] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] <6>[ 0.886280] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] <6>[ 0.886842] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] <6>[ 0.887512] pci_bus 0000:00: resource 7 [mem 0x000c0000-0x000c3fff window] <6>[ 0.888125] pci_bus 0000:00: resource 8 [mem 0x000c4000-0x000c7fff window] <6>[ 0.888746] pci_bus 0000:00: resource 9 [mem 0x000c8000-0x000cbfff window] <6>[ 0.889367] pci_bus 0000:00: resource 10 [mem 0x000cc000-0x000cffff window] <6>[ 0.889988] pci_bus 0000:00: resource 11 [mem 0x000d0000-0x000d3fff window] <6>[ 0.890614] pci_bus 0000:00: resource 12 [mem 0x000d4000-0x000d7fff window] <6>[ 0.891235] pci_bus 0000:00: resource 13 [mem 0x000d8000-0x000dbfff window] <6>[ 0.891861] pci_bus 0000:00: resource 14 [mem 0x000dc000-0x000dffff window] <6>[ 0.892488] pci_bus 0000:00: resource 15 [mem 0x000e0000-0x000e3fff window] <6>[ 0.893109] pci_bus 0000:00: resource 16 [mem 0x000e4000-0x000e7fff window] <6>[ 0.893767] pci_bus 0000:00: resource 17 [mem 0x000e8000-0x000ebfff window] <6>[ 0.894396] pci_bus 0000:00: resource 18 [mem 0x000ec000-0x000effff window] <6>[ 0.895017] pci_bus 0000:00: resource 19 [mem 0x000f0000-0x000fffff window] <6>[ 0.895643] pci_bus 0000:00: resource 20 [mem 0x80000001-0xdfffffff window] <6>[ 0.896264] pci_bus 0000:00: resource 21 [mem 0x800000000-0xbffffffff window] <6>[ 0.896904] pci_bus 0000:00: resource 22 [mem 0xfd000000-0xfe7fffff window] <6>[ 0.897532] pci_bus 0000:00: resource 23 [mem 0xfed40000-0xfed44fff window] <6>[ 0.898154] pci_bus 0000:01: resource 1 [mem 0xd1000000-0xd10fffff] <6>[ 0.899059] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] <6>[ 0.901302] PCI: CLS 64 bytes, default 64 <6>[ 0.901972] Unpacking initramfs... <6>[ 1.213585] Freeing initrd memory: 10244K <6>[ 1.214036] DMAR: Host address width 39 <6>[ 1.214437] DMAR: DRHD base: 0x000000fed90000 flags: 0x0 <6>[ 1.214974] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e <6>[ 1.215728] DMAR: RMRR base: 0x0000007b800000 end: 0x0000007fffffff <6>[ 1.216291] DMAR: DRHD base: 0x000000fed91000 flags: 0x1 <6>[ 1.216793] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da <6>[ 1.217593] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) <6>[ 1.218173] software IO TLB: mapped [mem 0x0000000076998000-0x000000007a998000] (64MB) <6>[ 1.219060] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, 655360 ms ovfl timer <6>[ 1.219779] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules <6>[ 1.220299] RAPL PMU: hw unit of domain package 2^-14 Joules <6>[ 1.220840] RAPL PMU: hw unit of domain dram 2^-14 Joules <6>[ 1.221338] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules <6>[ 1.221850] RAPL PMU: hw unit of domain psys 2^-14 Joules <3>[ 1.223686] kvm: already loaded the other module <6>[ 1.248950] check: Scanning for low memory corruption every 60 seconds <5>[ 1.251882] Initialise system trusted keyrings <6>[ 1.252500] workingset: timestamp_bits=56 max_order=20 bucket_order=0 <5>[ 1.267280] NFS: Registering the id_resolver key type <5>[ 1.267793] Key type id_resolver registered <5>[ 1.268205] Key type id_legacy registered <5>[ 1.283634] Key type asymmetric registered <5>[ 1.284041] Asymmetric key parser 'x509' registered <6>[ 1.284542] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) <6>[ 1.285214] io scheduler mq-deadline registered <6>[ 1.285643] io scheduler kyber registered <4>[ 1.286184] test_firmware: interface ready <6>[ 1.287741] pcieport 0000:00:1c.0: PME: Signaling with IRQ 120 <6>[ 1.289274] ACPI: AC Adapter [AC] (on-line) <6>[ 1.289962] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/PNP0C09:00/PNP0C0D:00/input/input0 <6>[ 1.291557] ACPI: Lid Switch [LID0] <6>[ 1.292080] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1 <6>[ 1.292929] ACPI: Power Button [PWRF] <6>[ 1.293538] ACPI: \_PR_.CP00: Found 3 idle states <6>[ 1.294674] ACPI: \_PR_.CP01: Found 3 idle states <6>[ 1.295553] ACPI: \_PR_.CP02: Found 3 idle states <6>[ 1.296424] ACPI: \_PR_.CP03: Found 3 idle states <6>[ 1.297670] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled <4>[ 1.300725] hpet_acpi_add: no address or irqs in _CRS <6>[ 1.301502] Non-volatile memory driver v1.3 <6>[ 1.301668] battery: ACPI: Battery Slot [BAT0] (battery present) <6>[ 1.302065] Linux agpgart interface v0.103 <6>[ 1.303106] ACPI: bus type drm_connector registered <6>[ 1.303686] [drm] amdgpu kernel modesetting enabled. <6>[ 1.306207] i915 0000:00:02.0: vgaarb: deactivate vga console <6>[ 1.359923] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem <6>[ 1.361633] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4) <6>[ 1.392585] [drm] Initialized i915 1.6.0 20200917 for 0000:00:02.0 on minor 0 <6>[ 1.395983] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 1 <6>[ 1.408613] loop: module loaded <6>[ 1.409551] lkdtm: No crash points registered, enable through debugfs <6>[ 1.427483] printk: console [ttyS0] disabled <6>[ 1.428093] dw-apb-uart.2: ttyS0 at MMIO 0xfe034000 (irq = 32, base_baud = 115200) is a 16550A <6>[ 2.288483] tsc: Refined TSC clocksource calibration: 1607.999 MHz <6>[ 2.289266] printk: console [ttyS0] enabled <6>[ 2.305248] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x172da94f0e2, max_idle_ns: 440795278248 ns <6>[ 2.323218] dw-apb-uart.4: ttyS1 at MMIO 0xd1137000 (irq = 20, base_baud = 115200) is a 16550A <6>[ 5.067326] clocksource: Switched to clocksource tsc <6>[ 5.067461] fbcon: i915drmfb (fb0) is primary device <4>[ 5.068986] pxa2xx-spi pxa2xx-spi.5: no DMA channels available, using PIO <6>[ 5.075184] e100: Intel(R) PRO/100 Network Driver <6>[ 5.075187] e100: Copyright(c) 1999-2006 Intel Corporation <6>[ 5.075233] e1000: Intel(R) PRO/1000 Network Driver <6>[ 5.075235] e1000: Copyright (c) 1999-2006 Intel Corporation. <6>[ 5.075292] e1000e: Intel(R) PRO/1000 Network Driver <6>[ 5.075294] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. <6>[ 5.075379] igb: Intel(R) Gigabit Ethernet Network Driver <6>[ 5.075381] igb: Copyright (c) 2007-2014 Intel Corporation. <6>[ 5.075428] sky2: driver version 1.30 <6>[ 5.075655] usbcore: registered new interface driver r8152 <6>[ 5.076000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver <6>[ 5.076020] ehci-pci: EHCI PCI platform driver <6>[ 5.076074] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver <6>[ 5.076086] ohci-pci: OHCI PCI platform driver <6>[ 5.076130] uhci_hcd: USB Universal Host Controller Interface driver <6>[ 5.076898] xhci_hcd 0000:00:14.0: xHCI Host Controller <6>[ 5.077581] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 <6>[ 5.078176] tpm_tis_spi spi-PRP0001:00: TPM ready IRQ confirmed on attempt 2 <6>[ 5.078969] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0000000081109810 <6>[ 5.079019] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported <6>[ 5.080730] xhci_hcd 0000:00:14.0: xHCI Host Controller <6>[ 5.081221] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 <6>[ 5.081234] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed <6>[ 5.081690] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10 <6>[ 5.081705] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 5.081708] usb usb1: Product: xHCI Host Controller <6>[ 5.081711] usb usb1: Manufacturer: Linux 5.10.202-cip41 xhci-hcd <6>[ 5.081722] usb usb1: SerialNumber: 0000:00:14.0 <6>[ 5.083094] hub 1-0:1.0: USB hub found <6>[ 5.083234] hub 1-0:1.0: 12 ports detected <6>[ 5.086256] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10 <6>[ 5.086260] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 5.086263] usb usb2: Product: xHCI Host Controller <6>[ 5.086266] usb usb2: Manufacturer: Linux 5.10.202-cip41 xhci-hcd <6>[ 5.086268] usb usb2: SerialNumber: 0000:00:14.0 <6>[ 5.087227] hub 2-0:1.0: USB hub found <6>[ 5.087274] hub 2-0:1.0: 6 ports detected <6>[ 5.088903] usbcore: registered new interface driver usblp <6>[ 5.088976] usbcore: registered new interface driver usb-storage <6>[ 5.089481] udc-core: couldn't find an available UDC - added [g_ether] to list of pending drivers <6>[ 5.089605] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1 <4>[ 5.089608] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp <4>[ 5.090360] i8042: Warning: Keylock active <6>[ 5.090636] serio: i8042 KBD port at 0x60,0x64 irq 1 <6>[ 5.092613] rtc_cmos 00:02: RTC can wake from S4 <6>[ 5.094587] rtc_cmos 00:02: registered as rtc0 <6>[ 5.095037] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 <6>[ 5.096209] rtc_cmos 00:02: alarms up to one month, 242 bytes nvram <6>[ 5.097025] i801_smbus 0000:00:1f.4: SPD Write Disable is set <6>[ 5.097063] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt <6>[ 5.097874] i2c i2c-9: 2/2 memory slots populated (from DMI) <6>[ 5.098769] Console: switching to colour frame buffer device 240x67 <6>[ 5.099309] device-mapper: ioctl: 4.43.0-ioctl (2020-10-01) initialised: dm-devel@redhat.com <6>[ 5.099381] intel_pstate: Intel P-state driver initializing <6>[ 5.100193] intel_pstate: HWP enabled <6>[ 5.100227] sdhci: Secure Digital Host Controller Interface driver <6>[ 5.100227] sdhci: Copyright(c) Pierre Ossman <6>[ 5.100256] sdhci-pci 0000:00:1e.4: SDHCI controller found [8086:9d2b] (rev 21) <6>[ 5.101112] mmc0: SDHCI controller on PCI [0000:00:1e.4] using ADMA 64-bit <6>[ 5.101261] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.102268] hid: raw HID events driver (C) Jiri Kosina <6>[ 5.102689] usbcore: registered new interface driver usbhid <6>[ 5.102690] usbhid: USB HID core driver <6>[ 5.103238] input: Tablet Mode Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/PNP0C09:00/GOOG0006:00/input/input3 <6>[ 5.103563] tpm_tis_spi spi-PRP0001:00: 2.0 TPM (device-id 0x28, rev-id 0) <6>[ 5.109019] cros_ec_lpcs GOOG0004:00: Chrome EC device registered <6>[ 5.114099] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device <6>[ 5.121026] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 <6>[ 5.313955] mmc0: new HS400 MMC card at address 0001 <6>[ 5.317053] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops) <6>[ 5.321610] ipip: IPv4 and MPLS over IPv4 tunneling driver <6>[ 5.322577] mmcblk0: mmc0:0001 DA4064 58.2 GiB <6>[ 5.322694] mmcblk0boot0: mmc0:0001 DA4064 partition 1 4.00 MiB <6>[ 5.322798] mmcblk0boot1: mmc0:0001 DA4064 partition 2 4.00 MiB <6>[ 5.323037] mmcblk0rpmb: mmc0:0001 DA4064 partition 3 16.0 MiB, chardev (245:0) <3>[ 5.340922] snd_hda_intel 0000:00:1f.3: Cannot probe codecs, giving up <6>[ 5.348761] usb 1-3: new full-speed USB device number 2 using xhci_hcd <6>[ 5.348970] IPv4 over IPsec tunneling driver <6>[ 5.349211] Initializing XFRM netlink socket <6>[ 5.349564] NET: Registered protocol family 10 <6>[ 5.350279] Segment Routing with IPv6 <6>[ 5.350949] NET: Registered protocol family 17 <6>[ 5.351077] 8021q: 802.1Q VLAN Support v1.8 <5>[ 5.351111] Key type dns_resolver registered <6>[ 5.708020] microcode: sig=0x806e9, pf=0x10, revision=0x98 <6>[ 5.714597] microcode: Microcode Update Driver: v2.2. <6>[ 5.714605] IPI shorthand broadcast: enabled <6>[ 5.725674] sched_clock: Marking stable (5640300800, 85324273)->(5824408378, -98783305) <6>[ 5.735130] registered taskstats version 1 <5>[ 5.740028] Loading compiled-in X.509 certificates <6>[ 5.747441] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 <6>[ 5.747622] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.748450] tpm_tis_spi spi-PRP0001:00: Cr50 firmware version: B2-C:0 RO_B:0.0.11/4d655eab RW_A:0.5.6/cr50_v1.9308_87_mp.510-d2 <6>[ 5.777031] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.786485] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.795897] PM: Magic number: 15:500:604 <6>[ 5.800963] printk: console [netcon0] enabled <6>[ 5.806167] netconsole: network logging started <6>[ 5.849268] usb 1-3: New USB device found, idVendor=8087, idProduct=0a2a, bcdDevice= 0.03 <6>[ 5.858761] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0 <6>[ 5.871052] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 5.961699] usb 2-3: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd <6>[ 5.983318] usb 2-3: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=31.00 <6>[ 5.992782] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=6 <6>[ 6.001064] usb 2-3: Product: USB 10/100/1000 LAN <6>[ 6.006626] usb 2-3: Manufacturer: Realtek <6>[ 6.011507] usb 2-3: SerialNumber: 001000001 <6>[ 6.019713] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 6.096588] usb 1-9: new high-speed USB device number 3 using xhci_hcd <6>[ 6.264143] usb 1-9: New USB device found, idVendor=13d3, idProduct=56d4, bcdDevice=18.07 <6>[ 6.273612] usb 1-9: New USB device strings: Mfr=3, Product=1, SerialNumber=2 <6>[ 6.281895] usb 1-9: Product: USB2.0 HD UVC WebCam <6>[ 6.287555] usb 1-9: Manufacturer: Azurewave <6>[ 6.292632] usb 1-9: SerialNumber: 0x0001 <6>[ 6.304938] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 6.350740] usb 2-3: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd <6>[ 6.403951] r8152 2-3:1.0: load rtl8153b-2 v2 04/27/23 successfully <6>[ 6.442819] r8152 2-3:1.0 eth0: v1.11.11 <6>[ 6.447885] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 9.372459] r8152 2-3:1.0 eth0: carrier on <6>[ 9.377466] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready <5>[ 9.389460] Sending DHCP requests .., OK <6>[ 12.408203] IP-Config: Got DHCP answer from 192.168.201.1, my address is 192.168.201.13 <6>[ 12.417453] IP-Config: Complete: <6>[ 12.421358] device=eth0, hwaddr=00:e0:4c:68:0b:d9, ipaddr=192.168.201.13, mask=255.255.255.0, gw=192.168.201.1 <6>[ 12.433321] host=asus-c433ta-aj0005-rammus-cbg-0, domain=lava-rack, nis-domain=(none) <6>[ 12.442878] bootserver=192.168.201.1, rootserver=192.168.201.1, rootpath= <6>[ 12.442880] nameserver0=192.168.201.1 <5>[ 12.456355] cfg80211: Loading compiled-in X.509 certificates for regulatory database <6>[ 12.468278] modprobe (100) used greatest stack depth: 14016 bytes left <5>[ 12.471226] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' <4>[ 12.483748] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 <6>[ 12.484452] ALSA device list: <6>[ 12.493739] cfg80211: failed to load regulatory.db <6>[ 12.497342] No soundcards found. <4>[ 12.507478] dw-apb-uart dw-apb-uart.2: forbid DMA for kernel console <6>[ 12.517413] Freeing unused kernel image (initmem) memory: 2168K <6>[ 12.537620] Write protecting the kernel read-only data: 36864k <6>[ 12.545351] Freeing unused kernel image (text/rodata gap) memory: 2028K <6>[ 12.553461] Freeing unused kernel image (rodata/data gap) memory: 1316K <6>[ 12.561263] Run /init as init process <6>[ 12.566734] mkdir (104) used greatest stack depth: 13944 bytes left Loading, please wait... Starting version 247.3-7+deb11u2 <6>[ 12.585056] systemd-udevd (122) used greatest stack depth: 13752 bytes left <6>[ 12.757417] chromeos ramoops using acpi device. <6>[ 12.759887] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 12.776234] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 12.789601] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 12.798543] cros-usbpd-notify-acpi GOOG0003:00: Couldn't get Chrome EC device pointer. <4>[ 12.799488] i2c_hid i2c-PNP0C50:00: supply vdd not found, using dummy regulator <6>[ 12.807814] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <4>[ 12.816620] i2c_hid i2c-PNP0C50:00: supply vddl not found, using dummy regulator <6>[ 12.846253] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 12.856837] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 12.858336] Registered efivars operations <6>[ 12.870111] gsmi version 1.0 loaded <6>[ 13.006795] 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>[ 13.024852] hid-generic 0018:0457:157E.0001: input,hidraw0: I2C HID v1.00 Device [PNP0C50:00 0457:157E] on i2c-PNP0C50:00 <6>[ 13.037740] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.052047] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.063557] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.076901] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.088284] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.099895] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.112263] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.114428] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (13d3:56d4) <4>[ 13.121808] da7219 i2c-DLGS7219:00: Using default DAI clk names: da7219-dai-wclk, da7219-dai-bclk <6>[ 13.134062] 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>[ 13.139955] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.151572] usbcore: registered new interface driver uvcvideo <6>[ 13.161150] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.166424] USB Video Class driver (1.1.1) <6>[ 13.183843] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.193787] sdhci-pci 0000:00:1e.6: SDHCI controller found [8086:9d2d] (rev 21) <6>[ 13.203716] 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:68:0b:d9 mtu 1500 DHCP IP-Config: eth0 complete (dhcp from 192.168.201.1): address: 192.168.201.13 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-0 domain : lava-rack rootserver: 192.168.201.1 rootpath: filename : <6>[ 13.361717] nfsmount (170) 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>[ 13.706562] 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>[ 13.745598] systemd[1]: Detected architecture x86-64. Welcome to Debian GNU/Linux 11 (bullseye)! <30>[ 13.765950] systemd[1]: Set hostname to . <30>[ 14.047525] systemd[1]: Queued start job for default target Graphical Interface. <30>[ 14.058262] systemd[1]: Created slice system-getty.slice. [ OK ] Created slice system-getty.slice. <30>[ 14.074957] systemd[1]: Created slice system-modprobe.slice. [ OK ] Created slice system-modprobe.slice. <30>[ 14.090968] systemd[1]: Created slice system-serial\x2dgetty.slice. [ OK ] Created slice system-serial\x2dgetty.slice. <30>[ 14.107914] systemd[1]: Created slice User and Session Slice. [ OK ] Created slice User and Session Slice. <30>[ 14.124993] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ OK ] Started Dispatch Password …ts to Console Directory Watch. <30>[ 14.146896] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ OK ] Started Forward Password R…uests to Wall Directory Watch. <30>[ 14.166848] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ OK ] Set up automount Arbitrary…s File System Automount Point. <30>[ 14.187749] systemd[1]: Reached target Local Encrypted Volumes. [ OK ] Reached target Local Encrypted Volumes. <30>[ 14.204757] systemd[1]: Reached target Paths. [ OK ] Reached target Paths. <30>[ 14.218716] systemd[1]: Reached target Remote File Systems. [ OK ] Reached target Remote File Systems. <30>[ 14.234602] systemd[1]: Reached target Slices. [ OK ] Reached target Slices. <30>[ 14.248687] systemd[1]: Reached target Swap. [ OK ] Reached target Swap. <30>[ 14.260025] systemd[1]: Listening on initctl Compatibility Named Pipe. [ OK ] Listening on initctl Compatibility Named Pipe. <30>[ 14.279004] systemd[1]: Listening on Journal Audit Socket. [ OK ] Listening on Journal Audit Socket. <30>[ 14.295672] systemd[1]: Listening on Journal Socket (/dev/log). [ OK ] Listening on Journal Socket (/dev/log). <30>[ 14.313239] systemd[1]: Listening on Journal Socket. [ OK ] Listening on Journal Socket. <30>[ 14.329921] systemd[1]: Listening on Network Service Netlink Socket. [ OK ] Listening on Network Service Netlink Socket. <30>[ 14.349378] systemd[1]: Listening on udev Control Socket. [ OK ] Listening on udev Control Socket. <30>[ 14.366117] systemd[1]: Listening on udev Kernel Socket. [ OK ] Listening on udev Kernel Socket. <30>[ 14.383935] systemd[1]: Mounting Huge Pages File System... Mounting Huge Pages File System... <30>[ 14.398746] systemd[1]: Mounting POSIX Message Queue File System... Mounting POSIX Message Queue File System... <30>[ 14.418241] systemd[1]: Mounting Kernel Debug File System... Mounting Kernel Debug File System... <30>[ 14.433939] systemd[1]: Mounting Kernel Trace File System... Mounting Kernel Trace File System... <30>[ 14.450807] systemd[1]: Starting Create list of static device nodes for the current kernel... Starting Create list of st…odes for the current kernel... <30>[ 14.472089] systemd[1]: Starting Load Kernel Module configfs... Starting Load Kernel Module configfs... <30>[ 14.487095] systemd[1]: Starting Load Kernel Module drm... Starting Load Kernel Module drm... <30>[ 14.502126] systemd[1]: Starting Load Kernel Module fuse... Starting Load Kernel Module fuse... <6>[ 14.518482] fuse: init (API version 7.32) <30>[ 14.520026] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped. <30>[ 14.536868] systemd[1]: Starting Journal Service... Starting Journal Service... <30>[ 14.552760] systemd[1]: Starting Load Kernel Modules... Starting Load Kernel Modules... <30>[ 14.567786] systemd[1]: Starting Remount Root and Kernel File Systems... Starting Remount Root and Kernel File Systems... <30>[ 14.586117] systemd[1]: Starting Coldplug All udev Devices... Starting Coldplug All udev Devices... <30>[ 14.603878] systemd[1]: Mounted Huge Pages File System. [ OK ] Mounted Huge Pages File System. <30>[ 14.619819] systemd[1]: Mounted POSIX Message Queue File System. [ OK ] Mounted POSIX Message Queue File System. <30>[ 14.636697] systemd[1]: Mounted Kernel Debug File System. [ OK ] Mounted Kernel Debug File System. <30>[ 14.652675] systemd[1]: Mounted Kernel Trace File System. [ OK ] Mounted Kernel Trace File System. <30>[ 14.669912] systemd[1]: Finished Create list of static device nodes for the current kernel. [ OK ] Finished Create list of st… nodes for the current kernel. <30>[ 14.690281] systemd[1]: modprobe@configfs.service: Succeeded. <30>[ 14.697652] systemd[1]: Finished Load Kernel Module configfs. [ OK ] Finished Load Kernel Module configfs. <30>[ 14.713857] systemd[1]: Started Journal Service. [ OK ] Started Journal Service. [ OK ] Finished Load Kernel Module drm. [ 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>[ 14.828116] systemd-journald[205]: 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. [ OK ] Finished Flush Journal to Persistent Storage. Starting Create Static Device Nodes in /dev... [ 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. Starting Load/Save Screen …eds:chromeos::kbd_backlight... [ OK ] Finished Load/Save Screen … leds:chromeos::kbd_backlight. [ OK ] Started Network Service. [ OK ] Started Network Time Synchronization. [ OK ] Reached target System Time Set. [ OK ] Reached target System Time Synchronized. [ OK ] Listening on Load/Save RF …itch Status /dev/rfkill Watch. Starting Load/Save Screen …f backlight:intel_backlight... Starting Network Name Resolution... [ OK ] Finished Load/Save Screen … of backlight:intel_backlight. [ OK ] Reached target System Initialization. [ 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 ] Started Daily Cleanup of Temporary Directories. [ 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 ] Started User Login Management. [ OK ] Reached target Network. [ OK ] Reached target Host and Network Name Lookups. Starting Permit User Sessions... [ OK ] Finished Permit User Sessions. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Finished Update UTMP about System Runlevel Changes. Debian GNU/Linux 11 debian-bullseye-amd64 ttyS0 debian-bullseye-amd64 login: root (automatic login) Linux debian-bullseye-amd64 5.10.202-cip41 #1 SMP Tue Nov 28 22:13:28 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. <6>[ 16.639393] systemctl (288) used greatest stack depth: 12384 bytes left / # / # export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/12109978/extract-nfsrootfs-aanzg6z2' export NFS_ROOTFS='/var/lib/lava/dispatcher/tmp/12109978/extract-nfsrootfs-aanzg6z2' / # 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-12109978/environment . /lava-12109978/environment / # /lava-12109978/bin/lava-test-runner /lava-12109978/0 /lava-12109978/bin/lava-test-runner /lava-12109978/0 + export TESTRUN_ID=0_timesync-off + TESTRUN_ID=0_timesync-off + cd /lava-12109978/0/tests/0_timesync-off ++ cat uuid + UUID=12109978_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-12109978/0/tests/1_kselftest-lkdtm ++ cat uuid + UUID=12109978_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/v5.10.201-cip41-197-g2d08925b44e52/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 --2023-11-28 22:35:26-- http://storage.kernelci.org/cip-gitlab/ci-iwamatsu-linux-5.10.y-cip-rc/v5.10.201-cip41-197-g2d08925b44e52/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: 3381000 (3.2M) [application/octet-stream] Saving to: 'kselftest.tar.xz' kselftest.tar.xz 0%[ ] 0 --.-KB/s kselftest.tar.xz 1%[ ] 50.15K 190KB/s kselftest.tar.xz 6%[> ] 217.50K 410KB/s kselftest.tar.xz 27%[====> ] 898.59K 1.10MB/s kselftest.tar.xz 35%[======> ] 1.15M 978KB/s kselftest.tar.xz 100%[===================>] 3.22M 2.66MB/s in 1.2s 2023-11-28 22:35:27 (2.66 MB/s) - 'kselftest.tar.xz' saved [3381000/3381000] 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>[ 22.616537] 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>[ 22.861589] lkdtm: Performing direct entry BUG <4>[ 22.866938] ------------[ cut here ]------------ <2>[ 22.872423] kernel BUG at drivers/misc/lkdtm/bugs.c:76! <4>[ 22.878601] invalid opcode: 0000 [#1] SMP PTI <4>[ 22.883763] CPU: 2 PID: 640 Comm: cat Tainted: G W 5.10.202-cip41 #1 <4>[ 22.892604] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 22.899704] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 22.904368] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 22.925643] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 22.931768] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 22.940028] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 22.948290] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 22.956548] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 22.964807] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 22.973068] FS: 00007f307e5af580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 22.982397] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 22.989124] CR2: 00007f307e3b9000 CR3: 0000000104924004 CR4: 00000000003706e0 <4>[ 22.997383] Call Trace: <4>[ 23.000422] ? __die_body.cold+0x1a/0x1f <4>[ 23.005089] ? die+0x2b/0x50 <4>[ 23.008592] ? do_trap+0x91/0x110 <4>[ 23.012579] ? lkdtm_BUG+0x5/0x10 <4>[ 23.016569] ? do_error_trap+0x90/0x110 <4>[ 23.021138] ? lkdtm_BUG+0x5/0x10 <4>[ 23.025129] ? lkdtm_BUG+0x5/0x10 <4>[ 23.029110] ? exc_invalid_op+0x4e/0x70 <4>[ 23.033680] ? lkdtm_BUG+0x5/0x10 <4>[ 23.037670] ? asm_exc_invalid_op+0x12/0x20 <4>[ 23.042631] ? direct_entry+0xe0/0xe0 <4>[ 23.047008] ? lkdtm_BUG+0x5/0x10 <4>[ 23.050998] direct_entry.cold+0x2c/0x38 <4>[ 23.055668] full_proxy_write+0x53/0x80 <4>[ 23.060244] vfs_write+0xe7/0x3b0 <4>[ 23.064225] ksys_write+0x68/0xf0 <4>[ 23.068214] do_syscall_64+0x30/0x40 <4>[ 23.072486] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 23.078415] RIP: 0033:0x7f307e4c5473 <4>[ 23.082694] 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>[ 23.103967] RSP: 002b:00007ffd231bcc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 23.112713] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f307e4c5473 <4>[ 23.120972] RDX: 0000000000000004 RSI: 00007f307e3b9000 RDI: 0000000000000001 <4>[ 23.129233] RBP: 00007f307e3b9000 R08: 00007f307e3b8010 R09: 0000000000000000 <4>[ 23.137491] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 23.145750] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 23.154013] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <0>[ 23.208693] gsmi: Log Shutdown Reason 0x03 <4>[ 23.213571] ---[ end trace 4d2843ad41e5eeed ]--- <4>[ 23.219029] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 23.223707] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 23.244988] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 23.251124] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 23.259392] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 23.267682] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 23.275953] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 23.284213] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 23.292476] FS: 00007f307e5af580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 23.301816] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 23.308533] CR2: 00007f307e3b9000 CR3: 0000000104924004 CR4: 00000000003706e0 # Segmentation fault # [ 22.861589] lkdtm: Performing direct entry BUG # [ 22.866938] ------------[ cut here ]------------ # [ 22.872423] kernel BUG at drivers/misc/lkdtm/bugs.c:76! # [ 22.878601] invalid opcode: 0000 [#1] SMP PTI # [ 22.883763] CPU: 2 PID: 640 Comm: cat Tainted: G W 5.10.202-cip41 #1 # [ 22.892604] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 22.899704] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 22.904368] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 22.925643] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 22.931768] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 22.940028] RDX:<6>[ 23.410203] lkdtm: Performing direct entry WARNING 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 #<4>[ 23.418052] ------------[ cut here ]------------ [ 22.948290] RBP: ffffffff893e8808 R08: 0000000000000001 R09:<4>[ 23.429679] WARNING: CPU: 1 PID: 678 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x13/0x20 0000000000000001 # [ 22.956548] R10: 00000000ffffe000 R11: 3<4>[ 23.445610] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table fffffffffffffff R12: 0000000000000004 # [ 22.964807] R13: fff<4>[ 23.504568] CPU: 1 PID: 678 Comm: cat Tainted: G D W 5.10.202-cip41 #1 fac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ <4>[ 23.519629] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 22.973068] FS: 00007f307e5af580(0000) GS:ffff90a8bad00000(0000<4>[ 23.532942] RIP: 0010:lkdtm_WARNING+0x13/0x20 ) knlGS:0000000000000000 # [ 22.982397] CS: 0010 DS: 0000 ES<4>[ 23.544314] 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 00 62 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 e1 61 : 0000 CR0: 0000000080050033 # [ 22.989124] CR2: 00007f307e3b<4>[ 23.571830] RSP: 0018:ffffac7e013e7e60 EFLAGS: 00010202 9000 CR3: 0000000104924004 CR4: 00000000003706e0 # [ 22.99738<4>[ 23.584151] RAX: ffffffff87d7bac0 RBX: 0000000000000002 RCX: 0000000000000000 <4>[ 23.598626] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff88ef8380 3] Call Trace: # [ 23.000422] ? __die_body.cold+0x1a/0x1f #<4>[ 23.606893] RBP: ffffffff8938249f R08: 0000000000000000 R09: 0000000000000000 <4>[ 23.621367] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000008 [ 23.005089] ? die+0x2b/0x50 # [ 23.008592] ? do_trap+0x<4>[ 23.629633] R13: ffffac7e013e7f10 R14: ffffac7e013e7f10 R15: ffff90a84365d000 <4>[ 23.644105] FS: 00007f4b09568580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 91/0x110 # [ 23.012579] ? lkdtm_BUG+0x5/0x10 # [ 23.01656<4>[ 23.653439] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 23.666362] CR2: 00007f4b09372000 CR3: 000000010365e002 CR4: 00000000003706e0 9] ? do_error_trap+0x90/0x110 # [ 23.021138] ? lkdtm_BUG+0x<4>[ 23.674628] Call Trace: 5/0x10 # [ 23.025129] ? lkdtm_BUG+0x5/0x10 # [ 23.029110]<4>[ 23.683863] ? __warn+0x80/0x110 <4>[ 23.693967] ? lkdtm_WARNING+0x13/0x20 ? exc_invalid_op+0x4e/0x70 # [ 23.033680] ? lkdtm_BUG+0x5/<4>[ 23.698470] ? report_bug+0x9e/0xc0 0x10 # [ 23.037670] ? asm_exc_invalid_op+0x12/0x20 # [ 23<4>[ 23.708864] ? handle_bug+0x41/0x90 <4>[ 23.719262] ? exc_invalid_op+0x14/0x70 .042631] ? direct_entry+0xe0/0xe0 # [ 23.047008] ? lkdtm_BU<4>[ 23.723838] ? asm_exc_invalid_op+0x12/0x20 G+0x5/0x10 # [ 23.050998] direct_entry.cold+0x2c/0x38 # [ <4>[ 23.735011] ? lkdtm_BUG+0x10/0x10 23.055668] full_proxy_write+0x53/0x80 # [ 23.060244] vfs_w<4>[ 23.745316] ? lkdtm_WARNING+0x13/0x20 rite+0xe7/0x3b0 # [ 23.064225] ksys_write+0x68/0xf0 # [ 2<4>[ 23.756007] direct_entry.cold+0x2c/0x38 3.068214] do_syscall_64+0x30/0x40 # [ 23.072486] entry_SYSC<4>[ 23.766897] full_proxy_write+0x53/0x80 ALL_64_after_hwframe+0x62/0xc7 # [ 23.078415] RIP: 0033:0x7f3<4>[ 23.777686] vfs_write+0xe7/0x3b0 07e4c5473 # [ 23.082694] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 <4>[ 23.787895] ksys_write+0x68/0xf0 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 8<4>[ 23.798099] do_syscall_64+0x30/0x40 <4>[ 23.808596] entry_SYSCALL_64_after_hwframe+0x62/0xc7 5 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f <4>[ 23.814553] RIP: 0033:0x7f4b0947e473 <4>[ 23.825043] 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 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 23.103967] RSP: 002b:<4>[ 23.846323] RSP: 002b:00007ffcc6613768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 23.861282] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f4b0947e473 00007ffd231bcc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # <4>[ 23.869546] RDX: 0000000000000008 RSI: 00007f4b09372000 RDI: 0000000000000001 <4>[ 23.884018] RBP: 00007f4b09372000 R08: 00007f4b09371010 R09: 0000000000000000 [ 23.112713] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: <4>[ 23.892283] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 23.906755] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 00007f307e4c5473 # [ 23.120972] RDX: 0000000000000004 RSI: 00<4>[ 23.915025] irq event stamp: 0 <4>[ 23.924929] hardirqs last enabled at (0): [<0000000000000000>] 0x0 007f307e3b9000 RDI: 0000000000000001 # [ 23.129233] RBP: 0000<4>[ 23.932223] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 23.947861] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 7f307e3b9000 R08: 00007f307e3b8010 R09: 0000000000000000 # [ <4>[ 23.957316] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 23.970817] ---[ end trace 4d2843ad41e5eeee ]--- 23.137491] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 23.145750] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 23.154013] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 23.208693] gsmi: Log Shutdown Reason 0x03 # [ 23.213571<6>[ 24.047598] lkdtm: Performing direct entry WARNING_MESSAGE ] ---[ end trace 4d2843ad41e5eeed ]--- # [ 23.219029] RIP: 00<4>[ 24.057257] ------------[ cut here ]------------ 10:lkdtm_BUG+0x5/0x10 # [ 23.223707] Code: 89 ff e8 4e d8 79 <4>[ 24.068919] Warning message trigger count: 2 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc c<4>[ 24.080213] WARNING: CPU: 1 PID: 714 at drivers/misc/lkdtm/bugs.c:88 lkdtm_WARNING_MESSAGE+0x20/0x30 c 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 <4>[ 24.096902] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table 00 00 00 00 00 0f 1f 44 00 00 83 05 00 62 0b 03 # [ 23.244988<4>[ 24.155863] CPU: 1 PID: 714 Comm: cat Tainted: G D W 5.10.202-cip41 #1 ] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 23.251124] <4>[ 24.170921] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 000000000000000<4>[ 24.184233] RIP: 0010:lkdtm_WARNING_MESSAGE+0x20/0x30 0 # [ 23.259392] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 <4>[ 24.196381] Code: cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 e1 61 0b 03 48 c7 c7 00 2a 38 89 8d 70 01 89 35 d1 61 0b 03 e8 ea bb 69 00 <0f> 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 c7 RDI: ffffffff88ef8370 # [ 23.267682] RBP: ffffffff893e8808 R0<4>[ 24.223870] RSP: 0018:ffffac7e01477e60 EFLAGS: 00010286 8: 0000000000000001 R09: 0000000000000001 # [ 23.275953] R10:<4>[ 24.236210] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 #<4>[ 24.250687] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 [ 23.284213] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15:<4>[ 24.265167] RBP: ffffffff893824a7 R08: 0000000000000000 R09: 0000000000000000 ffff90a8436f0000 # [ 23.292476] FS: 00007f307e5af580(0000) <4>[ 24.279648] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000010 GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 23.30181<4>[ 24.294127] R13: ffffac7e01477f10 R14: ffffac7e01477f10 R15: ffff90a84364a000 6] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 23.3<4>[ 24.308608] FS: 00007f4cac4b0580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 08533] CR2: 00007f307e3b9000 CR3: 0000000104924004 CR4: 00000000<4>[ 24.324156] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 003706e0 # BUG: saw 'kernel BUG at': ok ok 2 selftests: lkdtm:<4>[ 24.337080] CR2: 00007f4cac2ba000 CR3: 0000000103420003 CR4: 00000000003706e0 BUG.sh # selftests: lkdtm: WARNING.sh # [ 23.410203] lkdtm:<4>[ 24.351559] Call Trace: Performing direct entry WARNING # [ 23.418052] ------------[<4>[ 24.360800] ? __warn+0x80/0x110 cut here ]------------ # [ 23.429679] WARNING: CPU: 1 PID: 6<4>[ 24.370906] ? lkdtm_WARNING_MESSAGE+0x20/0x30 78 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x13/0x20 # [ <4>[ 24.382374] ? report_bug+0x9e/0xc0 23.445610] Modules linked in: fuse ip_tables cros_ec_lid_angle<4>[ 24.392775] ? handle_bug+0x41/0x90 cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buf<4>[ 24.403172] ? exc_invalid_op+0x14/0x70 fer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vma<4>[ 24.413961] ? asm_exc_invalid_op+0x12/0x20 lloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chard<4>[ 24.425140] ? lkdtm_WARNING_MESSAGE+0x20/0x30 ev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usb<4>[ 24.436605] direct_entry.cold+0x2c/0x38 pd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_therma<4>[ 24.447489] full_proxy_write+0x53/0x80 l cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify sn<4>[ 24.458277] vfs_write+0xe7/0x3b0 d_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chrome<4>[ 24.468482] ksys_write+0x68/0xf0 os_pstore coreboot_table # [ 23.504568] CPU: 1 PID: 678 Comm:<4>[ 24.478689] do_syscall_64+0x30/0x40 cat Tainted: G D W 5.10.202-cip41 #1 # [ 23.519<4>[ 24.489183] entry_SYSCALL_64_after_hwframe+0x62/0xc7 629] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ <4>[ 24.501330] RIP: 0033:0x7f4cac3c6473 23.532942] RIP: 0010:lkdtm_WARNING+0x13/0x20 # [ 23.544314]<4>[ 24.511826] 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 Code: c0 f4 ff ff ff eb c9 0f 1f 44 00 00 0f 0b 66 0f 1f 84 00 <4>[ 24.539317] RSP: 002b:00007ffcd21ee6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 00 00 00 00 0f 1f 44 00 00 83 05 00 62 0b 03 01 75 05 c3 cc cc c<4>[ 24.554281] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007f4cac3c6473 c cc <0f> 0b c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b <4>[ 24.568756] RDX: 0000000000000010 RSI: 00007f4cac2ba000 RDI: 0000000000000001 05 e1 61 # [ 23.571830] RSP: 0018:ffffac7e013e7e60 EFLAGS: 00<4>[ 24.583234] RBP: 00007f4cac2ba000 R08: 00007f4cac2b9010 R09: 0000000000000000 010202 # [ 23.584151] RAX: ffffffff87d7bac0 RBX: 000000000000<4>[ 24.597713] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 0002 RCX: 0000000000000000 # [ 23.598626] RDX: 00000000000000<4>[ 24.612191] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 00 RSI: ffff90a8bac9bf50 RDI: ffffffff88ef8380 # [ 23.606893]<4>[ 24.626674] irq event stamp: 0 RBP: ffffffff8938249f R08: 0000000000000000 R09: 00000000000000<4>[ 24.636583] hardirqs last enabled at (0): [<0000000000000000>] 0x0 00 # [ 23.621367] R10: 00000000ffffe000 R11: 3fffffffffffffff<4>[ 24.650092] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 R12: 0000000000000008 # [ 23.629633] R13: ffffac7e013e7f10 R<4>[ 24.665735] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 14: ffffac7e013e7f10 R15: ffff90a84365d000 # [ 23.644105] FS:<4>[ 24.681378] softirqs last disabled at (0): [<0000000000000000>] 0x0 00007f4b09568580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000<4>[ 24.694884] ---[ end trace 4d2843ad41e5eeef ]--- 000000000 # [ 23.653439] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 23.666362] CR2: 00007f4b09372000 CR3: 000000010365e002 CR4: 00000000003706e0 # [ 23.674628] Call Trace: # [ 23.683863] ? __warn+0x80/0x110 # [ 23.693967] ? lkdtm_WARNING+0x13/0x20 # [ 23.698470] ? report_bug+0x9e/0xc0 # [ 23.708864] ? handle_bug+0x41/0x90 # [ 23.719262] ? exc_invalid_op+0x14/0x70 # [ 23.723838] ? asm_exc_invalid_op+0x12/0x20 # [ 23.735011] ? lkdtm_BUG+0x10/0x10 # [ 23.745316] ? lkdtm_WARNING+0x13/0x20 # [ 23.756007] direct_entry.cold+0x2c/0x38 # [ 23.766897] full_proxy_write+0x53/0x80 # [ 23.777686] vfs_write+0xe7/0x3b0 # [ 23.787895] ksys_write+0x68/0xf0 # [ 23.798099] do_syscall_64+0x30/0x40 # [ 23.808596] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 23.814553] RIP: 0033:0x7f4b0947e473 # [ 23.825043] Code: 8b 15 21 2a<6>[ 24.793344] lkdtm: Performing direct entry EXCEPTION <1>[ 24.799430] BUG: kernel NULL pointer dereference, address: 0000000000000000 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b <1>[ 24.807505] #PF: supervisor write access in kernel mode <1>[ 24.819842] #PF: error_code(0x0002) - not-present page <6>[ 24.825869] PGD 0 P4D 0 <4>[ 24.828983] Oops: 0002 [#2] SMP PTI <4>[ 24.833167] CPU: 2 PID: 747 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 24.841999] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 24.849098] RIP: 0010:lkdtm_EXCEPTION+0x5/0x20 <4>[ 24.854361] Code: 48 c7 c7 00 2a 38 89 8d 70 01 89 35 d1 61 0b 03 e8 ea bb 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>[ 24.875631] RSP: 0018:ffffac7e01507e60 EFLAGS: 00010282 <4>[ 24.881757] RAX: ffffffff87d7bb10 RBX: 0000000000000004 RCX: 0000000000000000 <4>[ 24.890018] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef83a0 <4>[ 24.898270] RBP: ffffffff89276187 R08: 0000000000000000 R09: 0000000000000000 <4>[ 24.906529] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 24.914788] R13: ffffac7e01507f10 R14: ffffac7e01507f10 R15: ffff90a8432ba000 <4>[ 24.923048] FS: 00007f666eb77580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 24.932378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 24.939075] CR2: 0000000000000000 CR3: 0000000102c38003 CR4: 00000000003706e0 <4>[ 24.947359] Call Trace: <4>[ 24.950379] ? __die_body.cold+0x1a/0x1f <4>[ 24.955049] ? no_context+0x177/0x380 <4>[ 24.959427] ? exc_page_fault+0x53/0x170 <4>[ 24.964097] ? asm_exc_page_fault+0x1e/0x30 <4>[ 24.969056] ? lkdtm_WARNING_MESSAGE+0x30/0x30 <4>[ 24.974306] ? lkdtm_EXCEPTION+0x5/0x20 <4>[ 24.978867] direct_entry.cold+0x2c/0x38 <4>[ 24.983536] full_proxy_write+0x53/0x80 <4>[ 24.988110] vfs_write+0xe7/0x3b0 <4>[ 24.992099] ksys_write+0x68/0xf0 <4>[ 24.996088] do_syscall_64+0x30/0x40 <4>[ 25.000363] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 25.006293] RIP: 0033:0x7f666ea8d473 <4>[ 25.010563] 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>[ 25.031835] RSP: 002b:00007ffcde3a2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 25.040581] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f666ea8d473 <4>[ 25.048840] RDX: 000000000000000a RSI: 00007f666e981000 RDI: 0000000000000001 <4>[ 25.057100] RBP: 00007f666e981000 R08: 00007f666e980010 R09: 0000000000000000 <4>[ 25.065360] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 25.073619] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0<4>[ 25.081882] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 25.140869] CR2: 0000000000000000 <4>[ 25.144857] ---[ end trace 4d2843ad41e5eef0 ]--- <4>[ 25.150303] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 25.154961] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 25.176233] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 25.182359] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 25.190609] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 25.198869] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 25.207127] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 25.215388] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 25.223636] FS: 00007f666eb77580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 25.232966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 25.239672] CR2: 0000000000000000 CR3: 0000000102c38003 CR4: 00000000003706e0 <3>[ 25.247931] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 25.258132] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 747, name: cat <4>[ 25.266779] INFO: lockdep is turned off. <4>[ 25.271445] irq event stamp: 0 <4>[ 25.275143] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 25.282423] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 25.291848] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 25.301272] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 25.308563] CPU: 2 PID: 747 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 25.317407] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 25.324501] Call Trace: <4>[ 25.327520] dump_stack+0x77/0x9b <4>[ 25.331509] ___might_sleep.cold+0xa6/0xb6 <4>[ 25.336372] exit_signals+0x1c/0x300 <4>[ 25.340651] do_exit+0xc2/0xab0 <4>[ 25.344436] ? ksys_write+0x68/0xf0 <4>[ 25.348619] make_task_dead+0x2f/0x30 <4>[ 25.352987] rewind_stack_and_make_dead+0x17/0x20 <4>[ 25.358521] RIP: 0033:0x7f666ea8d473 <4>[ 25.362799] 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>[ 25.384072] RSP: 002b:00007ffcde3a2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 25.392809] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f666ea8d473 <4>[ 25.401068] RDX: 000000000000000a RSI: 00007f666e981000 RDI: 0000000000000001 <4>[ 25.409330] RBP: 00007f666e981000 R08: 00007f666e980010 R09: 0000000000000000 <4>[ 25.417613] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 25.425873] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 23.846323] RSP: 002b:00007ffcc6613768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 23.861282] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f4b0947e473 # [ 23.869546] RDX: 0000000000000008 RSI: 00007f4b09372000 RDI: 0000000000000001 # [ 23.884018] RBP: 00007f4b09372000 R08: 00007f4b09371010 R09: 0000000000000000 # [ 23.892283] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 23.906755] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 23.915025] irq event stamp: 0 # [ 23.924929] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 23.932223] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 23.947861] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 23.957316] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 23.970817] ---[ end trace 4d2843ad41e5eeee ]--- # WARNING: saw 'WARNING:': ok ok 3 selftests: lkdtm: WARNING.sh # selftests: lkdtm: WARNING_MESSAGE.sh # [ 24.047598] lkdtm: Performing direct entry WARNING_MESSAGE # [ 24.057257] ------------[ cut here ]------------ # [ 24.068919] Warning message trigger count: 2 # [ 24.080213] WARNING: CPU: 1 PID: 714 at drivers/misc/lkdtm/bugs.c:88 lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 24.096902] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 24.155863] CPU: 1 PID: 714 Comm: cat Tainted: G D <6>[ 25.621148] lkdtm: Performing direct entry CORRUPT_LIST_ADD W 5.10.202-cip41 #1 # [ 24.170921] Hardware name: Goo<6>[ 25.633367] lkdtm: attempting good list addition gle Rammus/Rammus, BIOS 09/04/2020 # [ 24.184233] RIP: 0010:<6>[ 25.645028] lkdtm: attempting corrupted list addition <3>[ 25.657174] lkdtm: list_add() corruption not detected! lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 24.196381] Code: cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 e1 61 0b 03 48 c7 c7 00 2a 38 89 8d 70 01 89 35 d1 61 0b 03 e8 ea bb 69 00 <0f> 0b c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 c7 # [ 24.223870] RSP: 0018:ffffac7e01477e60 EFLAGS: 00010286 # [ 24.236210] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 # [ 24.250687] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 24.265167] RBP: ffffffff893824a7 R08: 0000000000000000 R09: 0000000000000000 # [ 24.279648] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000<6>[ 25.725178] lkdtm: Performing direct entry CORRUPT_LIST_DEL <6>[ 25.731870] lkdtm: attempting good list removal <6>[ 25.737228] lkdtm: attempting corrupted list removal 0000010 # [ 24.294127] R13: ffffac7e01477f10 R14: ffffac7e014<3>[ 25.743066] lkdtm: list_del() corruption not detected! 77f10 R15: ffff90a84364a000 # [ 24.308608] FS: 00007f4cac4b0580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 24.324156] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 24.337080] CR2: 00007f4cac2ba000 CR3: 0000000103420003 CR4: 00000000003706e0 # [ 24.351559] Call Trace: # [ 24.360800] ? __warn+0x80/0x110 # [ 24.370906] ? lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 24.382374] ? report_bug+0x9e/0xc0 # [ 24.392775] ? handle_bug+0x41/0x90 # [ 24.403172] ? exc_invalid_op+0x14/0x70 # [ 24.413961] ? asm_exc_invalid_op+0x12/0x20 # [ 24.425140] ? lkdtm_WARNING_MESSAGE+0x20/0x30 # [ 24.<6>[ 25.814869] lkdtm: Performing direct entry STACK_GUARD_PAGE_LEADING 436605] direct_entry.cold+0x2c/0x38 # [ 24.447489] full_pro<6>[ 25.824798] lkdtm: attempting bad read from page below current stack xy_write+0x53/0x80 # [ 24.458277] vfs_write+0xe7/0x3b0 # [ <0>[ 25.838415] BUG: stack guard page was hit at 000000007b8af2e8 (stack is 000000007fa2df7f..0000000031fb18d1) <4>[ 25.855797] kernel stack overflow (page fault): 0000 [#3] SMP PTI <4>[ 25.862893] CPU: 1 PID: 979 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 25.871733] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 25.878830] RIP: 0010:lkdtm_STACK_GUARD_PAGE_LEADING+0x27/0x3a 24.468482] ksys_write+0x68/0xf0 # [ 24.478689] do_syscall<4>[ 25.885636] Code: cc cc cc 0f 1f 44 00 00 53 48 c7 c7 a0 2d 38 89 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 fd de fb ff 48 c7 c7 e0 2d 38 89 <8a> 43 ff 88 44 24 07 0f b6 74 24 07 5a 5b e9 e3 de fb ff 0f 1f 44 <4>[ 25.913118] RSP: 0018:ffffac7e01837e50 EFLAGS: 00010246 <4>[ 25.919243] RAX: 0000000000000038 RBX: ffffac7e01834000 RCX: 0000000000000000 <4>[ 25.927504] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff89382de0 <4>[ 25.935764] RBP: ffffffff8938250a R08: 0000000000000000 R09: 0000000000000000 <4>[ 25.944022] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000019 <4>[ 25.952281] R13: ffffac7e01837f10 R14: ffffac7e01837f10 R15: ffff90a84485e000 <4>[ 25.960540] FS: 00007fdc81e9c580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 25.969869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 25.976565] CR2: ffffac7e01833fff CR3: 0000000103644005 CR4: 00000000003706e0 <4>[ 25.984823] Call Trace: <4>[ 25.987839] <#DF> <4>[ 25.990365] ? __die_body.cold+0x1a/0x1f _64+0x30/0x40 # [ 24.489183] entry_SYSCALL_64_after_hwframe+<4>[ 25.995036] ? die+0x2b/0x50 <4>[ 26.004750] ? handle_stack_overflow+0x3e/0x4d <4>[ 26.010001] ? no_context+0x24d/0x380 <4>[ 26.014377] 0x62/0xc7 # [ 24.501330] RIP: 0033:0x7f4cac3c6473 # [ 24.5<4>[ 26.017005] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 26.075960] ---[ end trace 4d2843ad41e5eef1 ]--- 11826] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff <4>[ 26.081413] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 26.092291] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 26.113562] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 26.119687] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 26.127946] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 26.136205] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 26.144465] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 26.152717] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 26.160977] FS: 00007fdc81e9c580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 26.170304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 26.177010] CR2: ffffac7e01833fff CR3: 0000000103644005 CR4: 00000000003706e0 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 # [ 24.539317] RSP: 002b:00007ffcd21ee6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 24.554281] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007f4cac3c6473 # [ 24.568756] RDX: 0000000000000010 RSI: 00007f4cac2ba000 RDI: 0000000000000001 # [ 24.583234] RBP: 00007f4cac2ba000 R08: 00007f4cac2b9010 R09: 0000000000000000 # [ 24.597713] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 24.612191] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 24.626674] irq event stamp: 0 # [ 24.63658<6>[ 26.252440] lkdtm: Performing direct entry STACK_GUARD_PAGE_TRAILING <6>[ 26.261027] lkdtm: attempting bad read from page above current stack 3] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ <0>[ 26.268427] BUG: stack guard page was hit at 0000000010c70c5b (stack is 0000000097a4d521..0000000029ef8c49) <4>[ 26.285806] kernel stack overflow (page fault): 0000 [#4] SMP PTI 24.650092] hardirqs last disabled at (0): []<4>[ 26.292904] CPU: 1 PID: 1013 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 26.308056] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 26.315146] RIP: 0010:lkdtm_STACK_GUARD_PAGE_TRAILING+0x27/0x3d copy_process+0x65c/0x20e0 # [ 24.665735] softirqs last enab<4>[ 26.322049] Code: de fb ff 0f 1f 44 00 00 53 48 c7 c7 18 2e 38 89 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 c3 de fb ff 48 c7 c7 58 2e 38 89 <8a> 83 00 40 00 00 88 44 24 07 0f b6 74 24 07 5a 5b e9 a6 de fb ff <4>[ 26.349531] RSP: 0018:ffffac7e018cfe50 EFLAGS: 00010246 <4>[ 26.355656] RAX: 0000000000000038 RBX: ffffac7e018cc000 RCX: 0000000000000000 <4>[ 26.363914] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff89382e58 <4>[ 26.372173] RBP: ffffffff89382523 R08: 0000000000000000 R09: 0000000000000000 <4>[ 26.380431] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001a <4>[ 26.388691] R13: ffffac7e018cff10 R14: ffffac7e018cff10 R15: ffff90a843700000 <4>[ 26.396951] FS: 00007ff04668d580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 26.406279] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 26.412985] CR2: ffffac7e018d0000 CR3: 00000001035c6003 CR4: 00000000003706e0 <4>[ 26.421244] Call Trace: <4>[ 26.424262] <#DF> <4>[ 26.426795] ? __die_body.cold+0x1a/0x1f led at (0): [] copy_process+0x65c/0x20e0 # [ <4>[ 26.431465] ? die+0x2b/0x50 <4>[ 26.441179] ? handle_stack_overflow+0x3e/0x4d <4>[ 26.446430] ? no_context+0x24d/0x380 <4>[ 26.450805] 24.681378] softirqs last disabled at (0): [<0000000000000000>]<4>[ 26.453431] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 26.512383] ---[ end trace 4d2843ad41e5eef2 ]--- 0x0 # [ 24.694884] ---[ end trace 4d2843ad41e5eeef ]--- # W<4>[ 26.517830] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 26.528708] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 26.549980] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 26.556103] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 26.564362] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 26.572621] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 26.580878] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 26.589138] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 26.597408] FS: 00007ff04668d580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 ARNING_MESSAGE: saw 'message trigger': ok ok 4 selftests: lkdtm<4>[ 26.606744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 26.619663] CR2: ffffac7e018d0000 CR3: 00000001035c6003 CR4: 00000000003706e0 <3>[ 26.627923] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 26.638116] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1013, name: cat <4>[ 26.646859] INFO: lockdep is turned off. <4>[ 26.651525] irq event stamp: 0 <4>[ 26.655222] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 26.662511] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 26.671937] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 26.681361] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 26.688652] CPU: 1 PID: 1013 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 26.697584] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 26.704678] Call Trace: <4>[ 26.707697] dump_stack+0x77/0x9b : WARNING_MESSAGE.sh # selftests: lkdtm: EXCEPTION.sh # Killed<4>[ 26.711689] ___might_sleep.cold+0xa6/0xb6 <4>[ 26.722763] exit_signals+0x1c/0x300 <4>[ 26.727043] do_exit+0xc2/0xab0 <4>[ 26.730837] ? ksys_write+0x68/0xf0 <4>[ 26.735020] make_task_dead+0x2f/0x30 <4>[ 26.739412] rewind_stack_and_make_dead+0x17/0x20 <4>[ 26.744954] RIP: 0033:0x7ff0465a3473 <4>[ 26.749233] 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>[ 26.770494] RSP: 002b:00007fff2d7fa3d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 26.779239] RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007ff0465a3473 <4>[ 26.787497] RDX: 000000000000001a RSI: 00007ff046497000 RDI: 0000000000000001 <4>[ 26.795755] RBP: 00007ff046497000 R08: 00007ff046496010 R09: 0000000000000000 <4>[ 26.804014] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 26.812272] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 24.793344] lkdtm: Performing direct entry EXCEPTION # [ 24.799430] BUG: kernel NULL pointer dereference, address: 0000000000000000 # [ 24.807505] #PF: supervisor write access in kernel mode # [ 24.819842] #PF: error_code(0x0002) - not-present page # [ 24.825869] PGD 0 P4D 0 # [ 24.828983] Oops: 0002 [#2] SMP PTI # [ 24.833167] CPU: 2 PID: 747 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 24.841999] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 24.849098] RIP: 0010:lkdtm_EXCEPTION+0x5/0x20 # [ 24.854361] Code: 48 c7 c7 00 2a 38 89 8d 70 01 89 35 d1 61 0b 03 e8 ea bb 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 # [ 24.875631] RSP: 0018:ffffac7e01507e60 EFLAGS: 00010282<6>[ 26.898990] lkdtm: Performing direct entry UNSET_SMEP <6>[ 26.907270] lkdtm: trying to clear SMEP normally # [ 24.881757] RAX: ffffffff87d7bb10 RBX: 0000000000000004 R<4>[ 26.912747] ------------[ cut here ]------------ <4>[ 26.924412] pinned CR4 bits changed: 0x100000!? <4>[ 26.929809] WARNING: CPU: 2 PID: 1050 at arch/x86/kernel/cpu/common.c:397 native_write_cr4+0x45/0x60 CX: 0000000000000000 # [ 24.890018] RDX: 0000000000000000 RSI<4>[ 26.940316] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 26.999259] CPU: 2 PID: 1050 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 27.008225] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 27.015327] RIP: 0010:native_write_cr4+0x45/0x60 <4>[ 27.020799] 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 28 02 28 89 c6 05 68 5e 66 02 01 e8 75 55 15 01 <0f> 0b c3 cc cc cc cc 48 89 d6 48 81 e7 ff f7 ce ff 48 31 c6 48 09 <4>[ 27.042077] RSP: 0018:ffffac7e0197fe48 EFLAGS: 00010286 <4>[ 27.048236] RAX: 0000000000000000 RBX: 00000000002706e0 RCX: 0000000000000000 <4>[ 27.056497] RDX: ffff90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 <4>[ 27.064762] RBP: ffffffff8938253d R08: 0000000000000000 R09: 0000000000000000 <4>[ 27.073024] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b <4>[ 27.081288] R13: ffffac7e0197ff10 R14: ffffac7e0197ff10 R15: ffff90a845826000 <4>[ 27.089553] FS: 00007f8abf7b0580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 27.098885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 27.105593] CR2: 00007f8abf5ba000 CR3: 00000001035ec003 CR4: 00000000003706e0 <4>[ 27.113856] Call Trace: <4>[ 27.116879] ? __warn+0x80/0x110 : ffff90a8bad1bf50 RDI: ffffffff88ef83a0 # [ 24.898270] RBP: <4>[ 27.120799] ? native_write_cr4+0x45/0x60 <4>[ 27.131775] ? report_bug+0x9e/0xc0 <4>[ 27.135992] ? handle_bug+0x41/0x90 <4>[ 27.140208] ? exc_invalid_op+0x14/0x70 <4>[ 27.144783] ? asm_exc_invalid_op+0x12/0x20 <4>[ 27.149773] ? native_write_cr4+0x45/0x60 <4>[ 27.154571] ? native_write_cr4+0x45/0x60 ffffffff89276187 R08: 0000000000000000 R09: 0000000000000000 # <4>[ 27.159365] lkdtm_UNSET_SMEP.cold+0x1d/0x103 <4>[ 27.170735] direct_entry.cold+0x2c/0x38 [ 24.906529] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: <4>[ 27.175441] full_proxy_write+0x53/0x80 <4>[ 27.186222] vfs_write+0xe7/0x3b0 <4>[ 27.190246] ksys_write+0x68/0xf0 <4>[ 27.194260] do_syscall_64+0x30/0x40 <4>[ 27.198546] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 27.204508] RIP: 0033:0x7f8abf6c6473 <4>[ 27.208791] 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>[ 27.230073] RSP: 002b:00007fff76f70888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 000000000000000a # [ 24.914788] R13: ffffac7e01507f10 R14: ff<4>[ 27.238852] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f8abf6c6473 <4>[ 27.253319] RDX: 000000000000000b RSI: 00007f8abf5ba000 RDI: 0000000000000001 <4>[ 27.261581] RBP: 00007f8abf5ba000 R08: 00007f8abf5b9010 R09: 0000000000000000 <4>[ 27.269843] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 27.278107] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 27.286379] irq event stamp: 0 ffac7e01507f10 R15: ffff90a8432ba000 # [ 24.923048] FS: 0000<4>[ 27.290085] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 27.303588] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 27.313018] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 27.322448] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 27.329739] ---[ end trace 4d2843ad41e5eef3 ]--- <6>[ 27.335186] lkdtm: ok: SMEP did not get cleared <6>[ 27.340536] lkdtm: trying to clear SMEP with call gadget <6>[ 27.346761] lkdtm: ok: SMEP removal was reverted 7f666eb77580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 24.932378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 24.939075] CR2: 0000000000000000 CR3: 0000000102c38003 CR4: 00000000003706e0 # [ 24.947359] Call Trace: # [ 24.950379] ? __die_body.cold+0x1a/0x1f # [ 24.955049] ? no_context+0x177/0x380 # [ 24.959427] ? exc_page_fault+0x53/0x170 # [ 24.964097] ? asm_exc_page_fault+0x1e/0x30 # [ 24.969056] ? lkdtm_WARNING_MESSAGE+0x30/0x30 # [ 24.974306] ? lkdtm_EXCEPTION+0x5/0x20 # [ 24.978867] direct_entry.cold+0x2c/0x38 # [ 24.983536] full_proxy_write+0x53/0x80 # [ 24.988110] vfs_write+0xe7/0x3b0 # [ 24.992099] ksys_write+0x68/0xf0 # [ 24.996088] do_syscall_64+0x30/0x40 # [ 25.00036<6>[ 27.421386] lkdtm: Performing direct entry DOUBLE_FAULT 3] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 25.006293] R<3>[ 27.432988] lkdtm: XFAIL: this test is ia32-only IP: 0033:0x7f666ea8d473 # [ 25.010563] 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 # [ 25.031835] RSP: 002b:00007ffcde3a2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 25.040581] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f666ea8d473 # [ 25.048840] RDX: 000000000000000a RSI: 00007f666e981000 RDI: 0000000000000001 # [ 25.057100] RBP: 00007f666e981000 R08: 00007f666e980010 R09: 0000000000000000 # [ 25.065360] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 25.073619] R13: 00000000000000<6>[ 27.509441] lkdtm: Performing direct entry CORRUPT_PAC 01 R14: 0000000000020000 R15: 0000000000020000 # [ 25.081882]<3>[ 27.519017] lkdtm: XFAIL: this test is arm64-only Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 25.140869] CR2: 0000000000000000 # [ 25.144857] ---[ end trace 4d2843ad41e5eef0 ]--- # [ 25.150303] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 25.154961] Code: 89 ff e8 4e d<6>[ 27.594152] lkdtm: Performing direct entry UNALIGNED_LOAD_STORE_WRITE <3>[ 27.606633] lkdtm: XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 8 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 00 62 0b 03 # [ 25.176233] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 25.182359] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 25.190609] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 25.198869] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 25.207127] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 25.215388] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 25.223636] FS: 00007f666eb77580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 25.232966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 25.239672] CR2: 0000000000000000 CR3: 0000000102c38003 CR4: 00000000003706e0 # [ 25.247931] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 25.258132] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 747, name: cat # [ 25.266779] INFO: lockdep is turned off. # [ 25.271445] irq event stamp: 0 # [ 25.275143] hardirqs las<6>[ 27.732285] lkdtm: Performing direct entry READ_AFTER_FREE t enabled at (0): [<0000000000000000>] 0x0 # [ 25.282423] ha<6>[ 27.739118] lkdtm: Value in memory before free: 12345678 rdirqs last disabled at (0): [] copy_process+0<6>[ 27.751533] lkdtm: Attempting bad read from freed memory x65c/0x20e0 # [ 25.291848] softirqs last enabled at (0): [[ 27.763970] lkdtm: Memory was not poisoned fffffff872fd6cc>] copy_process+0x65c/0x20e0 # [ 25.301272] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 25.308563] CPU: 2 PID: 747 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 25.317407] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 25.324501] Call Trace: # [ 25.327520] dump_stack+0x77/0x9b # [ 25.331509] ___might_sleep.cold+0xa6/0xb6 # [ 25.336372] exit_signals+0x1c/0x300 # [ 25.340651] do_exit+0xc2/0xab0 # [ 25.344436] ? ksys_write+0x68/0xf0 # [ 25.348619] make_task_dead+0x2f/0x30 # [ 25.352987] rewind_stack_and_make_dead+0x17/0x20 # [ 25.358521] RIP: 0033:0x7f666ea8d473 # [ 25.362799] 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 # [ 25.384072] RSP: 002b:00007ffcde3a2f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 25.392809] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f666ea8d473 # [ 25.401068] RDX: 000000000<6>[ 27.877091] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE 000000a RSI: 00007f666e981000 RDI: 0000000000000001 # [ 25.40<6>[ 27.887783] lkdtm: Value in memory before free: 12345678 9330] RBP: 00007f666e981000 R08: 00007f666e980010 R09: 000000000<6>[ 27.900171] lkdtm: Attempting to read from freed memory 0000000 # [ 25.417613] R10: fffffffffffffbc5 R11: 00000000000<6>[ 27.912518] lkdtm: Buddy page was not poisoned 00246 R12: 0000000000000001 # [ 25.425873] 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: l<6>[ 27.988021] lkdtm: Performing direct entry SLAB_FREE_DOUBLE kdtm: CORRUPT_STACK_STRONG.sh # SKIP # selftests: lkdtm: CORRUP<6>[ 27.998875] lkdtm: Attempting double slab free ... T_LIST_ADD.sh # [ 25.621148] lkdtm: Performing direct entry CORRUPT_LIST_ADD # [ 25.633367] lkdtm: attempting good list addition # [ 25.645028] lkdtm: attempting corrupted list addition # [ 25.657174] 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 # [ 25.725178] lkdtm: Performing direct entry CORRUPT_LIST_DEL # [ 25.731870] lkdtm: attempting good list removal # [ 25.737228] lkdtm: attempting corrupted list removal # [ 25.743066] lkdtm: list_del() corruption not detected! # CORRUPT_LIST_DEL: missing 'list_del corruption': [FAIL] not ok 11 selftests: lkdtm: CORRUPT_LIST_DEL.sh # exit<6>[ 28.083241] lkdtm: Performing direct entry SLAB_FREE_CROSS <6>[ 28.091881] lkdtm: Attempting cross-cache slab free ... =1 # selftests: lkdtm: STACK_GUARD_PAGE_LEADING.sh # Segmentation fault # [ 25.814869] lkdtm: Performing direct entry STACK_GUARD_PAGE_LEADING # [ 25.824798] lkdtm: attempting bad read from page below current stack # [ 25.838415] BUG: stack guard page was hit at 000000007b8af2e8 (stack is 000000007fa2df7f..0000000031fb18d1) # [ 25.855797] kernel stack overflow (page fault): 0000 [#3] SMP PTI # [ 25.862893] CPU: 1 PID: 979 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 25.871733] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 25.878830] RIP: 0010:lkdtm_STACK_GUARD_PAGE_LEADING+0x27/0x3a # [ 25.885636] Code: cc cc cc 0f 1f 44 00 00 53 48 c7 c7 a0 2<6>[ 28.163645] lkdtm: Performing direct entry SLAB_FREE_PAGE d 38 89 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 fd de fb ff<6>[ 28.172736] lkdtm: Attempting non-Slab slab free ... 48 c7 c7 e0 2d 38 89 <8a> 43 ff 88 44 24 07 0f b6 74 24 07 5a 5b e9 e3 de fb ff 0f 1f 44 # [ 25.913118] RSP: 0018:ffffac7e01837e50 EFLAGS: 00010246 # [ 25.919243] RAX: 0000000000000038 RBX: ffffac7e01834000 RCX: 0000000000000000 # [ 25.927504] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff89382de0 # [ 25.935764] RBP: ffffffff8938250a R08: 0000000000000000 R09: 0000000000000000 # [ 25.944022] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000019 # [ 25.952281] R13: ffffac7e01837f10 R14: ffffac7e01837f10 R15: ffff90a84485e000 # [ 25.960540] FS: 00007fdc81e9c580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 25.969869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 25.976565] CR2: ffffac7e01833fff CR3: 0000000103644005 CR4: 00000000003706e0 # [ 25.984823] Call Trace: # [ 25.987839] <#DF> # [ 25.990365] ? __die_body.cold+0x1a/0x1f # [ 25.995036] ? die+0x2b/0x50 # [ 26.004750] ? handle_stack_overflow+0x3e/0x4d # [ 26.010001] ? no_context+0x24d/0x380 # [ 26.014377] # [ 26.017005] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 26.075960] ---[ end trace 4d2843ad41e5eef1 ]--- # [ 26.081413] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 26.092291] Code: 89 ff e8 4e d8 79 ff 48 c7 c0 ea ff ff ff eb <6>[ 28.353651] lkdtm: Performing direct entry EXEC_DATA de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c<6>[ 28.364715] lkdtm: attempting ok execution at ffffffff87d7be80 9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 <6>[ 28.377739] lkdtm: attempting bad execution at ffffffff8ae31d00 00 83 05 00 62 0b 03 # [ 26.113562] RSP: 0018:ffffac7e0134fe6<2>[ 28.390873] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 28.405717] BUG: unable to handle page fault for address: ffffffff8ae31d00 <1>[ 28.413687] #PF: supervisor instruction fetch in kernel mode <1>[ 28.420297] #PF: error_code(0x0011) - permissions violation <6>[ 28.426810] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD 80000000284000e3 <4>[ 28.434593] Oops: 0011 [#5] SMP PTI <4>[ 28.438768] CPU: 0 PID: 1573 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 28.447707] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 28.454804] RIP: 0010:data_area+0x0/0x40 <4>[ 28.459477] Code: ff ff 00 85 3d 40 a8 90 ff ff 00 84 3d 40 a8 90 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>[ 28.480747] RSP: 0018:ffffac7e0218fe48 EFLAGS: 00010246 <4>[ 28.486870] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 28.495130] RDX: 0000000000000000 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 <4>[ 28.503400] RBP: ffffffff8ae31d00 R08: 0000000000000000 R09: 0000000000000000 <4>[ 28.511649] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 28.519907] R13: ffffac7e0218ff10 R14: ffffac7e0218ff10 R15: ffff90a843000000 <4>[ 28.528167] FS: 00007fd948eda580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 28.537495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 28.544201] CR2: ffffffff8ae31d00 CR3: 00000001035f4005 CR4: 00000000003706f0 <4>[ 28.552460] Call Trace: <4>[ 28.555479] ? __die_body.cold+0x1a/0x1f <4>[ 28.560154] ? no_context+0x177/0x380 <4>[ 28.564539] ? exc_page_fault+0xd7/0x170 <4>[ 28.569212] ? asm_exc_page_fault+0x1e/0x30 <4>[ 28.574177] ? execute_location+0x45/0x56 <4>[ 28.578948] ? direct_entry.cold+0x2c/0x38 <4>[ 28.583811] ? full_proxy_write+0x53/0x80 <4>[ 28.588581] ? vfs_write+0xe7/0x3b0 <4>[ 28.592754] ? ksys_write+0x68/0xf0 <4>[ 28.596938] ? do_syscall_64+0x30/0x40 <4>[ 28.601413] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 28.607540] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 28.660304] CR2: ffffffff8ae31d00 <4>[ 28.664292] ---[ end trace 4d2843ad41e5eef4 ]--- <4>[ 28.669728] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 28.674387] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 28.695646] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 28.701770] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 28.710029] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 28.718289] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 28.726548] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 28.734808] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 28.743060] FS: 00007fd948eda580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 28.752388] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 28.759094] CR2: ffffffff8ae31d00 CR3: 00000001035f4005 CR4: 00000000003706f0 <3>[ 28.767353] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 28.777554] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1573, name: cat <4>[ 28.786299] INFO: lockdep is turned off. <4>[ 28.790965] irq event stamp: 0 <4>[ 28.794662] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 28.801952] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 28.811378] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 28.820793] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 28.828082] CPU: 0 PID: 1573 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 28.837020] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 28.844115] Call Trace: <4>[ 28.847125] dump_stack+0x77/0x9b <4>[ 28.851120] ___might_sleep.cold+0xa6/0xb6 <4>[ 28.855991] exit_signals+0x1c/0x300 <4>[ 28.860275] do_exit+0xc2/0xab0 <4>[ 28.864068] ? ksys_write+0x68/0xf0 <4>[ 28.868245] make_task_dead+0x2f/0x30 <4>[ 28.872621] rewind_stack_and_make_dead+0x17/0x20 <4>[ 28.878161] RIP: 0033:0x7fd948df0473 <4>[ 28.882441] 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>[ 28.903712] RSP: 002b:00007ffd5c4256c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 28.912457] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007fd948df0473 <4>[ 28.920717] RDX: 000000000000000a RSI: 00007fd948ce4000 RDI: 0000000000000001 <4>[ 28.928976] RBP: 00007fd948ce4000 R08: 00007fd948ce3010 R09: 0000000000000000 <4>[ 28.937236] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 28.945495] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 0 EFLAGS: 00010282 # [ 26.119687] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 26.127946] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 26.136205] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 26.144465] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 26.152717] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 26.160977] FS: 00007fdc81e9c580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 26.170304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 26.177010] CR2: ffffac7e01833fff CR3: 0000000103644005 CR4: 00000000003706e0 # STACK_GUARD_PAGE_LEADING: saw 'call trace:': ok ok 12 selftests: lkdtm: STACK_GUARD_PAGE_LEADING.sh # selftests: lkdtm: STACK_GUARD_PAGE_TRAILING.sh # Segmentation fault # [ 26.252440] lkdtm: Performin<6>[ 29.040267] lkdtm: Performing direct entry EXEC_STACK <6>[ 29.046725] lkdtm: attempting ok execution at ffffffff87d7be80 <6>[ 29.053535] lkdtm: attempting bad execution at ffffac7e0222fe18 <2>[ 29.060492] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) g direct entry STACK_GUARD_PAGE_TRAILING # [ 26.261027] lkdtm<1>[ 29.069148] BUG: unable to handle page fault for address: ffffac7e0222fe18 <1>[ 29.083331] #PF: supervisor instruction fetch in kernel mode <1>[ 29.089963] #PF: error_code(0x0011) - permissions violation <6>[ 29.096474] PGD 100000067 P4D 100000067 PUD 100248067 PMD 1035c0067 PTE 8000000105154063 <4>[ 29.105805] Oops: 0011 [#6] SMP PTI <4>[ 29.109988] CPU: 3 PID: 1611 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 29.118926] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 29.126022] RIP: 0010:0xffffac7e0222fe18 <4>[ 29.130689] Code: 00 00 18 fe 22 02 7e ac ff ff 1c f6 45 88 ff ff ff ff 20 00 00 00 00 00 00 00 66 26 38 89 ff ff ff ff 4b f7 45 88 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>[ 29.151962] RSP: 0018:ffffac7e0222fdf8 EFLAGS: 00010246 <4>[ 29.158086] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 29.166359] RDX: 0000000000000000 RSI: ffff90a8bad9bf50 RDI: ffff90a8bad9bf50 <4>[ 29.174620] RBP: ffffac7e0222fe18 R08: 0000000000000000 R09: 0000000000000000 <4>[ 29.182879] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b <4>[ 29.191137] R13: ffffac7e0222ff10 R14: ffffac7e0222ff10 R15: ffff90a843f80000 <4>[ 29.199411] FS: 00007f8938ae1580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 <4>[ 29.208739] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 29.215446] CR2: ffffac7e0222fe18 CR3: 0000000103534003 CR4: 00000000003706e0 <4>[ 29.223704] Call Trace: <4>[ 29.226724] ? __die_body.cold+0x1a/0x1f <4>[ 29.231411] ? no_context+0x177/0x380 <4>[ 29.235789] ? exc_page_fault+0xd7/0x170 <4>[ 29.240458] ? asm_exc_page_fault+0x1e/0x30 <4>[ 29.245432] ? execute_location+0x45/0x56 <4>[ 29.250198] ? lkdtm_EXEC_STACK+0x26/0x44 <4>[ 29.254954] ? direct_entry.cold+0x2c/0x38 <4>[ 29.259809] ? full_proxy_write+0x53/0x80 <4>[ 29.264574] ? vfs_write+0xe7/0x3b0 <4>[ 29.268757] ? ksys_write+0x68/0xf0 <4>[ 29.272939] ? do_syscall_64+0x30/0x40 <4>[ 29.277412] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 : attempting bad read from page above current stack # [ 26.26<4>[ 29.283539] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 29.342525] CR2: ffffac7e0222fe18 <4>[ 29.346502] ---[ end trace 4d2843ad41e5eef5 ]--- <4>[ 29.351946] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 29.356613] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 29.377882] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 29.384006] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 29.392264] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 29.400536] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 29.408797] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 29.417056] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 29.425315] FS: 00007f8938ae1580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 <4>[ 29.434643] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 29.441359] CR2: ffffac7e0222fe18 CR3: 0000000103534003 CR4: 00000000003706e0 8427] BUG: stack guard page was hit at 0000000010c70c5b (stack is 0000000097a4d521..0000000029ef8c49) # [ 26.285806] kernel stack overflow (page fault): 0000 [#4] SMP PTI # [ 26.292904] CPU: 1 PID: 1013 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 26.308056] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 26.315146] RIP: 0010:lkdtm_STACK_GUARD_PAGE_TRAILING+0x27/0x3d # [ 26.322049] Code: de fb ff 0f 1f 44 00 00 53 48 c7 c7 18 2e 38 89 50 65 48 8b 04 25 40 b0 01 00 48 8b 58 18 e8 c3 de fb ff 48 c7 c7 58 2e 38 89 <8a> 83 00 40 00 00 88 44 24 07 0f b6 74 24 07 5a 5b e9 a6 de fb ff # [ 26.349531] RSP: 0018:ffffac7e018cfe50 EFLAGS: 00010246 # [ 26.355656] RAX: 0000000000000038 RBX: ffffac7e018cc000 RCX: 0000000000000000 # [ 26.363914] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff89382e58 # [ 26.372173] RBP: ffffffff89382523 R08: 0000000000000000 R09: 0000000000000000 # [ 26.380431] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001a # [ 26.388691] R13: ffffac7e018cff10 R14: ffffac7e018cff10 R15: ffff90a843700000 # [ 26.396951] FS: 00007ff04668d580(0000)<6>[ 29.557634] lkdtm: Performing direct entry EXEC_KMALLOC <6>[ 29.567815] lkdtm: attempting ok execution at ffffffff87d7be80 <6>[ 29.574653] lkdtm: attempting bad execution at ffff90a84379ee80 <2>[ 29.581563] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 29.590216] BUG: unable to handle page fault for address: ffff90a84379ee80 <1>[ 29.598184] #PF: supervisor instruction fetch in kernel mode <1>[ 29.604793] #PF: error_code(0x0011) - permissions violation <6>[ 29.611304] PGD 28601067 P4D 28601067 PUD 100878063 PMD 103684063 PTE 800000010379e063 <4>[ 29.620440] Oops: 0011 [#7] SMP PTI <4>[ 29.624622] CPU: 3 PID: 1648 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 29.633561] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 29.640655] RIP: 0010:0xffff90a84379ee80 <4>[ 29.645322] Code: 00 00 02 00 00 00 00 00 00 00 60 22 b5 45 a8 90 ff ff 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 eb f2 2f 87 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>[ 29.666585] RSP: 0018:ffffac7e022bfe38 EFLAGS: 00010246 <4>[ 29.672709] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 29.680969] RDX: 0000000000000000 RSI: ffff90a8bad9bf50 RDI: ffff90a8bad9bf50 <4>[ 29.689227] RBP: ffff90a84379ee80 R08: 0000000000000000 R09: 0000000000000000 <4>[ 29.697487] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d <4>[ 29.705748] R13: ffffac7e022bff10 R14: ffffac7e022bff10 R15: ffff90a8436da000 <4>[ 29.714008] FS: 00007f8c63b99580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 <4>[ 29.723359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 29.730065] CR2: ffff90a84379ee80 CR3: 0000000102862003 CR4: 00000000003706e0 <4>[ 29.738324] Call Trace: <4>[ 29.741364] ? __die_body.cold+0x1a/0x1f <4>[ 29.746033] ? no_context+0x177/0x380 <4>[ 29.750411] ? exc_page_fault+0xd7/0x170 <4>[ 29.755078] ? asm_exc_page_fault+0x1e/0x30 <4>[ 29.760041] ? execute_location+0x45/0x56 <4>[ 29.764805] ? lkdtm_EXEC_KMALLOC+0x2c/0x40 <4>[ 29.769764] ? direct_entry.cold+0x2c/0x38 <4>[ 29.774627] ? full_proxy_write+0x53/0x80 <4>[ 29.779384] ? vfs_write+0xe7/0x3b0 <4>[ 29.783566] ? ksys_write+0x68/0xf0 <4>[ 29.787739] ? do_syscall_64+0x30/0x40 <4>[ 29.792212] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 26.4062<4>[ 29.798329] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 29.857311] CR2: ffff90a84379ee80 <4>[ 29.861300] ---[ end trace 4d2843ad41e5eef6 ]--- <4>[ 29.866736] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 29.871404] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 29.892666] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 29.898790] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 29.907049] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 29.915307] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 29.923567] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 29.931826] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 29.940084] FS: 00007f8c63b99580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 <4>[ 29.949410] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 29.956116] CR2: ffff90a84379ee80 CR3: 0000000102862003 CR4: 00000000003706e0 <3>[ 29.964377] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 29.974599] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1648, name: cat <4>[ 29.983367] INFO: lockdep is turned off. <4>[ 29.988034] irq event stamp: 0 <4>[ 29.991730] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 29.999019] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 30.008442] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 30.017867] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 30.025157] CPU: 3 PID: 1648 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 30.034086] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 30.041180] Call Trace: <4>[ 30.044199] dump_stack+0x77/0x9b <4>[ 30.048187] ___might_sleep.cold+0xa6/0xb6 <4>[ 30.053051] exit_signals+0x1c/0x300 <4>[ 30.057331] do_exit+0xc2/0xab0 <4>[ 30.061153] ? ksys_write+0x68/0xf0 <4>[ 30.065355] make_task_dead+0x2f/0x30 <4>[ 30.069732] rewind_stack_and_make_dead+0x17/0x20 <4>[ 30.075273] RIP: 0033:0x7f8c63aaf473 <4>[ 30.079552] 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>[ 30.100813] RSP: 002b:00007ffc3769e7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 30.109558] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f8c63aaf473 <4>[ 30.117815] RDX: 000000000000000d RSI: 00007f8c639a3000 RDI: 0000000000000001 <4>[ 30.126076] RBP: 00007f8c639a3000 R08: 00007f8c639a2010 R09: 0000000000000000 <4>[ 30.134359] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 30.142619] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 79] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 26.412985] CR2: ffffac7e018d0000 CR3: 00000001035c6003 CR4: 00000000003706e0 # [ 26.421244] Call Trace: # [ 26.424262] <#DF> # [ 26.426795] ? __die_body.cold+0x1a/0x1f # [ 26.431465] ? die+0x2b/0x50 # [ 26.441179] ? handle_stack_overflow+0x3e/0x4d # [ 26.446430] ? no_context+0x24d/0x380 # [ 26.450805] # [ 26.453431] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backl<6>[ 30.237148] lkdtm: Performing direct entry EXEC_VMALLOC <6>[ 30.244095] lkdtm: attempting ok execution at ffffffff87d7be80 ight i2c_hid chromeos_pstore coreboot_table # [ 26.512383] --<6>[ 30.250910] lkdtm: attempting bad execution at ffffac7e00257000 <2>[ 30.264041] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) -[ end trace 4d2843ad41e5eef2 ]--- # [ 26.517830] RIP: 0010:l<1>[ 30.272699] BUG: unable to handle page fault for address: ffffac7e00257000 <1>[ 30.286884] #PF: supervisor instruction fetch in kernel mode <1>[ 30.293493] #PF: error_code(0x0011) - permissions violation <6>[ 30.300004] PGD 100000067 P4D 100000067 PUD 100248067 PMD 10098b067 PTE 8000000102df7063 <4>[ 30.309360] Oops: 0011 [#8] SMP PTI <4>[ 30.313542] CPU: 2 PID: 1685 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 30.322482] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 30.329578] RIP: 0010:0xffffac7e00257000 <4>[ 30.334238] Code: Unable to access opcode bytes at RIP 0xffffac7e00256fd6. <4>[ 30.342207] RSP: 0018:ffffac7e02367e38 EFLAGS: 00010246 <4>[ 30.348330] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 30.356589] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 <4>[ 30.364847] RBP: ffffac7e00257000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 30.373107] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d <4>[ 30.381367] R13: ffffac7e02367f10 R14: ffffac7e02367f10 R15: ffff90a842df7000 <4>[ 30.389627] FS: 00007f1202cb3580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 30.398955] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 30.405661] CR2: ffffac7e00256fd6 CR3: 000000010379c001 CR4: 00000000003706e0 <4>[ 30.413919] Call Trace: <4>[ 30.416938] ? __die_body.cold+0x1a/0x1f <4>[ 30.421608] ? no_context+0x177/0x380 <4>[ 30.425986] ? exc_page_fault+0xd7/0x170 <4>[ 30.430655] ? asm_exc_page_fault+0x1e/0x30 <4>[ 30.435619] ? execute_location+0x45/0x56 <4>[ 30.440384] ? lkdtm_EXEC_VMALLOC+0x20/0x30 <4>[ 30.445351] ? direct_entry.cold+0x2c/0x38 kdtm_BUG+0x5/0x10 # [ 26.528708] Code: 89 ff e8 4e d8 79 ff 4<4>[ 30.450224] ? full_proxy_write+0x53/0x80 <4>[ 30.461200] ? vfs_write+0xe7/0x3b0 <4>[ 30.465382] ? ksys_write+0x68/0xf0 <4>[ 30.469556] ? do_syscall_64+0x30/0x40 <4>[ 30.474028] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 8 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48<4>[ 30.480154] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 30.539141] CR2: ffffac7e00257000 <4>[ 30.543129] ---[ end trace 4d2843ad41e5eef7 ]--- <4>[ 30.548574] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 30.553233] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 30.574495] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 30.580611] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 30.588870] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 30.597128] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 30.605387] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 30.613666] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 30.621925] FS: 00007f1202cb3580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 30.631252] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 30.637959] CR2: ffffac7e00256fd6 CR3: 000000010379c001 CR4: 00000000003706e0 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 00 62 0b 03 # [ 26.549980] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 26.556103] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 26.564362] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 26.572621] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 26.580878] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 26.589138] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 26.597408] FS: 00007ff04668d580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 26.606744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 26.619663] CR2: ffffac7e018d0000 CR3: 00000001035c6003 CR4: 00000000003706e0 # [ 26.627923] BUG: sleeping function called from invali<6>[ 30.727017] lkdtm: Performing direct entry EXEC_RODATA d context at include/linux/percpu-rwsem.h:49 # [ 26.638116] i<6>[ 30.739314] lkdtm: attempting ok execution at ffffffff87d7be80 n_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1013, name<6>[ 30.752365] lkdtm: attempting bad execution at ffffffff88ef8800 : cat # [ 26.646859] INFO: lockdep is turned off. # [ 26.6<2>[ 30.765481] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) <1>[ 30.780303] BUG: unable to handle page fault for address: ffffffff88ef8800 <1>[ 30.788271] #PF: supervisor instruction fetch in kernel mode <1>[ 30.794878] #PF: error_code(0x0011) - permissions violation <6>[ 30.801411] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD 80000000264000e1 <4>[ 30.809193] Oops: 0011 [#9] SMP PTI <4>[ 30.813376] CPU: 0 PID: 1722 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 30.822354] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 30.829456] RIP: 0010:lkdtm_rodata_do_nothing+0x0/0x10 <4>[ 30.835487] Code: ff ff bb 0b 46 88 ff ff ff ff b2 28 38 89 ff ff ff ff 01 f3 45 88 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>[ 30.856759] RSP: 0018:ffffac7e0240fe48 EFLAGS: 00010246 <4>[ 30.862882] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 <4>[ 30.871142] RDX: 0000000000000000 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 <4>[ 30.879407] RBP: ffffffff88ef8800 R08: 0000000000000000 R09: 0000000000000000 <4>[ 30.887666] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c <4>[ 30.895925] R13: ffffac7e0240ff10 R14: ffffac7e0240ff10 R15: ffff90a842fad000 <4>[ 30.904184] FS: 00007fe80db11580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 30.913512] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 30.920216] CR2: ffffffff88ef8800 CR3: 00000001036ac005 CR4: 00000000003706f0 <4>[ 30.928476] Call Trace: <4>[ 30.931495] ? __die_body.cold+0x1a/0x1f <4>[ 30.936169] ? no_context+0x177/0x380 <4>[ 30.940553] ? exc_page_fault+0xd7/0x170 <4>[ 30.945224] ? asm_exc_page_fault+0x1e/0x30 <4>[ 30.950188] ? execute_location+0x45/0x56 <4>[ 30.954959] ? direct_entry.cold+0x2c/0x38 <4>[ 30.959823] ? full_proxy_write+0x53/0x80 <4>[ 30.964595] ? vfs_write+0xe7/0x3b0 <4>[ 30.968777] ? ksys_write+0x68/0xf0 <4>[ 30.972951] ? do_syscall_64+0x30/0x40 <4>[ 30.977415] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 30.983541] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 31.036303] CR2: ffffffff88ef8800 <4>[ 31.040290] ---[ end trace 4d2843ad41e5eef8 ]--- <4>[ 31.045736] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 31.050404] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 31.071674] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 31.077799] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 31.086048] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 31.094307] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 31.102567] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 31.110826] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 31.119085] FS: 00007fe80db11580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 31.128403] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 31.135108] CR2: ffffffff88ef8800 CR3: 00000001036ac005 CR4: 00000000003706f0 <3>[ 31.143367] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 31.153569] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1722, name: cat <4>[ 31.162315] INFO: lockdep is turned off. <4>[ 31.166982] irq event stamp: 0 <4>[ 31.170679] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 31.177968] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 31.187393] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 31.196817] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 31.204107] CPU: 0 PID: 1722 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 31.213046] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 31.220140] Call Trace: <4>[ 31.223164] dump_stack+0x77/0x9b <4>[ 31.227159] ___might_sleep.cold+0xa6/0xb6 <4>[ 31.232029] exit_signals+0x1c/0x300 <4>[ 31.236314] do_exit+0xc2/0xab0 <4>[ 31.240099] ? ksys_write+0x68/0xf0 <4>[ 31.244281] make_task_dead+0x2f/0x30 <4>[ 31.248649] rewind_stack_and_make_dead+0x17/0x20 <4>[ 31.254181] RIP: 0033:0x7fe80da27473 <4>[ 31.258460] 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>[ 31.279722] RSP: 002b:00007ffd8b7fbce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 31.288469] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fe80da27473 <4>[ 31.296727] RDX: 000000000000000c RSI: 00007fe80d91b000 RDI: 0000000000000001 <4>[ 31.304987] RBP: 00007fe80d91b000 R08: 00007fe80d91a010 R09: 0000000000000000 <4>[ 31.313247] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 31.321506] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 51525] irq event stamp: 0 # [ 26.655222] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 26.662511] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 26.671937] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 26.681361] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 26.688652] CPU: 1 PID: 1013 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 26.697584] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 26.704678] Call Trace: # [ 26.707697] dump_stack+0x77/0x9b # [ 26.711689] ___might_sleep.cold+0xa6/0xb6 # [ 26.722763] exit_signals+0x1c/0x300 # [ 26.727043] do_exit+0xc2/0xab0 # [ 26.730837] ? ksys_write+0x68/0xf0 # [ 26.735020] make_task_dead+0x2f/0x30 # [ 26.739412] rewind_stack_and_make_dead+0x17/0x20 # [ 26.744954] RIP: 00<6>[ 31.413502] lkdtm: Performing direct entry EXEC_USERSPACE <6>[ 31.423139] lkdtm: attempting ok execution at ffffffff87d7be80 33:0x7ff0465a3473 # [ 26.749233] Code: 8b 15 21 2a 0e 00 f7 d<6>[ 31.429963] lkdtm: attempting bad execution at 00007f212e380000 <2>[ 31.443066] unable to execute userspace code (SMEP?) (uid: 0) 8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00<1>[ 31.449798] BUG: unable to handle page fault for address: 00007f212e380000 <1>[ 31.463978] #PF: supervisor instruction fetch in kernel mode <1>[ 31.470588] #PF: error_code(0x0011) - permissions violation <6>[ 31.477101] PGD 8000000102dac067 P4D 8000000102dac067 PUD 1058a8067 PMD 104972067 PTE 10868e067 <4>[ 31.487111] Oops: 0011 [#10] SMP PTI <4>[ 31.491391] CPU: 2 PID: 1759 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 31.500375] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 31.507471] RIP: 0010:0x7f212e380000 <4>[ 31.511749] Code: Unable to access opcode bytes at RIP 0x7f212e37ffd6. <4>[ 31.519329] RSP: 0018:ffffac7e02467e50 EFLAGS: 00010246 <4>[ 31.525477] RAX: 0000000000000033 RBX: 0000000000000024 RCX: 0000000000000000 <4>[ 31.533735] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 <4>[ 31.541995] RBP: 00007f212e380000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 31.550256] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000f <4>[ 31.558515] R13: ffffac7e02467f10 R14: ffffac7e02467f10 R15: ffff90a842cee000 <4>[ 31.566775] FS: 00007f212e351580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 31.576104] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 31.582808] CR2: 00007f212e380000 CR3: 0000000105a34004 CR4: 00000000003706e0 <4>[ 31.591068] Call Trace: <4>[ 31.594087] ? __die_body.cold+0x1a/0x1f <4>[ 31.598757] ? no_context+0x177/0x380 <4>[ 31.603136] ? exc_page_fault+0x53/0x170 <4>[ 31.607804] ? asm_exc_page_fault+0x1e/0x30 <4>[ 31.612767] ? lkdtm_EXEC_USERSPACE.cold+0x66/0xae <4>[ 31.618409] ? direct_entry.cold+0x2c/0x38 <4>[ 31.623272] ? full_proxy_write+0x53/0x80 <4>[ 31.628029] ? vfs_write+0xe7/0x3b0 <4>[ 31.632202] ? ksys_write+0x68/0xf0 <4>[ 31.636385] ? do_syscall_64+0x30/0x40 <4>[ 31.640850] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5<4>[ 31.646976] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 31.705964] CR2: 00007f212e380000 <4>[ 31.709944] ---[ end trace 4d2843ad41e5eef9 ]--- <4>[ 31.715390] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 31.720078] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 31.741359] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 31.747484] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 31.755744] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 31.764004] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 31.772264] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 31.780522] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 31.788783] FS: 00007f212e351580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 31.798112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 31.804818] CR2: 00007f212e380000 CR3: 0000000105a34004 CR4: 00000000003706e0 5 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 26.770494] RSP: 002b:00007fff2d7fa3d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 26.779239] RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007ff0465a3473 # [ 26.787497] RDX: 000000000000001a RSI: 00007ff046497000 RDI: 0000000000000001 # [ 26.795755] RBP: 00007ff046497000 R08: 00007ff046496010 R09: 0000000000000000 # [ 26.804014] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 26.812272] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # STACK_GUARD_PAGE_TRAILING: saw 'call trace:': ok ok 13 selftests: lkdtm: STACK_GUARD_PAGE_TRAILING.sh # selftests: lkdtm: UNSET_SMEP.sh # [ 26.898990] lkdtm: Performing direct entry UNSET_SMEP # [ 26.907270] lkdtm: trying to clear SMEP normally # [ 26.912747] ------------[ cut here ]------------ # [ 26.924412] pinned CR4 bit<6>[ 31.898729] lkdtm: Performing direct entry EXEC_NULL <6>[ 31.905973] lkdtm: attempting ok execution at ffffffff87d7be80 <6>[ 31.912816] lkdtm: attempting bad execution at 0000000000000000 <1>[ 31.919758] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 31.927854] #PF: supervisor instruction fetch in kernel mode <1>[ 31.934464] #PF: error_code(0x0010) - not-present page <6>[ 31.940489] PGD 0 P4D 0 <4>[ 31.943605] Oops: 0010 [#11] SMP PTI <4>[ 31.947877] CPU: 2 PID: 1796 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 31.956816] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 31.963912] RIP: 0010:0x0 <4>[ 31.967123] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. <4>[ 31.975091] RSP: 0018:ffffac7e0252fe48 EFLAGS: 00010246 <4>[ 31.981215] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 <4>[ 31.989474] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 <4>[ 31.997735] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 32.005995] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a <4>[ 32.014256] R13: ffffac7e0252ff10 R14: ffffac7e0252ff10 R15: ffff90a8429ed000 <4>[ 32.022516] FS: 00007f51864ec580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 32.031844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.038550] CR2: ffffffffffffffd6 CR3: 0000000102fd0004 CR4: 00000000003706e0 <4>[ 32.046809] Call Trace: <4>[ 32.049829] ? __die_body.cold+0x1a/0x1f <4>[ 32.054498] ? no_context+0x177/0x380 <4>[ 32.058875] ? exc_page_fault+0x53/0x170 <4>[ 32.063544] ? asm_exc_page_fault+0x1e/0x30 <4>[ 32.068507] execute_location+0x45/0x56 <4>[ 32.073077] direct_entry.cold+0x2c/0x38 <4>[ 32.077747] full_proxy_write+0x53/0x80 <4>[ 32.082320] vfs_write+0xe7/0x3b0 <4>[ 32.086308] ksys_write+0x68/0xf0 <4>[ 32.090297] do_syscall_64+0x30/0x40 <4>[ 32.094577] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 32.100497] RIP: 0033:0x7f5186402473 <4>[ 32.104777] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 32.126048] RSP: 002b:00007ffc5fcd2248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 32.134787] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f5186402473 <4>[ 32.143046] RDX: 000000000000000a RSI: 00007f51862f6000 RDI: 0000000000000001 <4>[ 32.151307] RBP: 00007f51862f6000 R08: 00007f51862f5010 R09: 0000000000000000 <4>[ 32.159566] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 32.167825] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 s changed: 0x100000!? # [ 26.929809] WARNING: CPU: 2 PID: 105<4>[ 32.176090] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 32.235076] CR2: 0000000000000000 <4>[ 32.239064] ---[ end trace 4d2843ad41e5eefa ]--- <4>[ 32.244503] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 32.249170] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 32.270439] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 32.276562] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 32.284820] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 32.293080] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 32.301361] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 32.309621] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 32.317880] FS: 00007f51864ec580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 32.327207] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.333913] CR2: ffffffffffffffd6 CR3: 0000000102fd0004 CR4: 00000000003706e0 <3>[ 32.342173] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 32.352375] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1796, name: cat <4>[ 32.361121] INFO: lockdep is turned off. <4>[ 32.365787] irq event stamp: 0 <4>[ 32.369483] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 32.376773] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 32.386200] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 0 at arch/x86/kernel/cpu/common.c:397 native_write_cr4+0x45/0x60<4>[ 32.395629] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 32.409132] CPU: 2 PID: 1796 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 32.418074] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 32.425169] Call Trace: <4>[ 32.428189] dump_stack+0x77/0x9b <4>[ 32.432179] ___might_sleep.cold+0xa6/0xb6 <4>[ 32.437044] exit_signals+0x1c/0x300 <4>[ 32.441325] do_exit+0xc2/0xab0 <4>[ 32.445121] ? ksys_write+0x68/0xf0 <4>[ 32.449305] make_task_dead+0x2f/0x30 <4>[ 32.453682] rewind_stack_and_make_dead+0x17/0x20 <4>[ 32.459223] RIP: 0033:0x7f5186402473 <4>[ 32.463502] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 32.484766] RSP: 002b:00007ffc5fcd2248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 32.493504] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f5186402473 <4>[ 32.501764] RDX: 000000000000000a RSI: 00007f51862f6000 RDI: 0000000000000001 <4>[ 32.510025] RBP: 00007f51862f6000 R08: 00007f51862f5010 R09: 0000000000000000 <4>[ 32.518286] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 32.526547] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 26.940316] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 26.999259] CPU: 2 PID: 1050 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 27.008225] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 27.015327] RIP: 0010:native_write_cr4+0x45/0x60 # [ 27.020799] 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 28 02 28 89 c6 05 68 5e 66 02 01 e8 75 55 15 01 <0f> 0b c3 cc cc cc cc 48 89 d6 48 81 e7 ff f7 ce ff 48 31 c6 48 09 # [ 27.042077] RSP: 0018:ffffac7e0197fe48 <6>[ 32.628219] lkdtm: Performing direct entry ACCESS_USERSPACE EFLAGS: 00010286 # [ 27.048236] RAX: 0000000000000000 RBX: 00<6>[ 32.640832] lkdtm: attempting bad read at 00007ff678432000 000000002706e0 RCX: 0000000000000000 # [ 27.056497] RDX: ffff<1>[ 32.653467] BUG: unable to handle page fault for address: 00007ff678432000 <1>[ 32.667629] #PF: supervisor read access in kernel mode <1>[ 32.673657] #PF: error_code(0x0001) - permissions violation <6>[ 32.680169] PGD 80000001030ab067 P4D 80000001030ab067 PUD 1031ec067 PMD 106dc2067 PTE 107bd1067 90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 # [ <4>[ 32.690183] Oops: 0001 [#12] SMP PTI <4>[ 32.700679] CPU: 1 PID: 1832 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 32.709617] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 32.716714] RIP: 0010:lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 27.064762] RBP: ffffffff8938253d R08: 0000000000000000 R09: 0000<4>[ 32.723230] Code: 00 00 00 75 64 48 83 c4 10 5d c3 cc cc cc cc 48 89 ee 48 c7 c7 d0 35 38 89 e8 37 d8 fb ff 48 c7 c7 f8 35 38 89 b8 de c0 de c0 <48> 03 45 00 48 89 04 24 e8 1e d8 fb ff 48 89 ee 48 c7 c7 20 36 38 <4>[ 32.750718] RSP: 0018:ffffac7e025dfe48 EFLAGS: 00010246 <4>[ 32.756842] RAX: 00000000c0dec0de RBX: 0000000000000026 RCX: 0000000000000000 <4>[ 32.765103] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff893835f8 <4>[ 32.773364] RBP: 00007ff678432000 R08: 0000000000000000 R09: 0000000000000000 <4>[ 32.781624] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000011 <4>[ 32.789884] R13: ffffac7e025dff10 R14: ffffac7e025dff10 R15: ffff90a8432ec000 <4>[ 32.798146] FS: 00007ff678403580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 32.807476] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 32.814184] CR2: 00007ff678432000 CR3: 00000001036e0001 CR4: 00000000003706e0 <4>[ 32.822444] Call Trace: 00<0000000000 # [ 27.073024] R10: 00000000ffffe000 R11: 3fffff4>[ 32.825465] ? __die_body.cold+0x1a/0x1f <4>[ 32.836363] ? no_context+0x177/0x380 ffffffffff R12: 000000000000000b # [ 27.081288] R13: ffffac7e<4>[ 32.840744] ? exc_page_fault+0x53/0x170 <4>[ 32.851625] ? asm_exc_page_fault+0x1e/0x30 <4>[ 32.856587] ? lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 0197ff10 R14: ffffac7e0197ff10 R15: ffff90a845826000 # [ 27.0<4>[ 32.862423] ? lkdtm_ACCESS_USERSPACE.cold+0x35/0xa3 <4>[ 32.874470] direct_entry.cold+0x2c/0x38 <4>[ 32.879139] full_proxy_write+0x53/0x80 89553] FS: 00007f8abf7b0580(0000) GS:ffff90a8bad00000(0000) knl<4>[ 32.883711] vfs_write+0xe7/0x3b0 <4>[ 32.893912] ksys_write+0x68/0xf0 <4>[ 32.897894] do_syscall_64+0x30/0x40 <4>[ 32.902173] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 32.908104] RIP: 0033:0x7ff678319473 <4>[ 32.912384] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 <4>[ 32.933659] RSP: 002b:00007ffde8b3e138 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 32.942412] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007ff678319473 <4>[ 32.950673] RDX: 0000000000000011 RSI: 00007ff67820d000 RDI: 0000000000000001 <4>[ 32.958933] RBP: 00007ff67820d000 R08: 00007ff67820c010 R09: 0000000000000000 <4>[ 32.967194] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 32.975455] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 GS:0000000000000000 # [ 27.098885] CS: 0010 DS: 0000 ES: 000<4>[ 32.983718] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 33.042677] CR2: 00007ff678432000 <4>[ 33.046664] ---[ end trace 4d2843ad41e5eefb ]--- <4>[ 33.052111] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 33.056778] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 33.078052] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 33.084176] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 33.092437] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 33.100699] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 33.108958] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 33.117217] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 33.125478] FS: 00007ff678403580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 33.134808] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.141515] CR2: 00007ff678432000 CR3: 00000001036e0001 CR4: 00000000003706e0 0 CR0: 0000000080050033 # [ 27.105593] CR2: 00007f8abf5ba000 CR3: 00000001035ec003 CR4: 00000000003706e0 # [ 27.113856] Call Trace: # [ 27.116879] ? __warn+0x80/0x110 # [ 27.120799] ? native_write_cr4+0x45/0x60 # [ 27.131775] ? report_bug+0x9e/0xc0 # [ 27.135992] ? handle_bug+0x41/0x90 # [ 27.140208] ? exc_invalid_op+0x14/0x70 # [ 27.144783] ? asm_exc_invalid_op+0x12/0x20 # [ 27.149773] ? native_write_cr4+0x45/0x60 # [ 27.154571] ? native_write_cr4+0x45/0x60 # [ 27.159365] lkdtm_UNSET_SMEP.cold+0x1d/0x103 # [ 27.170735] direct_entry.cold+0x2c/0x38 # [ 27.175441] full_proxy_write+0x53/0x80 # [ 27.186222] vfs_write+0xe7/0x3b0 # [ 27.190246] ksys_write+0x68/0xf0 # [ 27.194260] do_syscall_64+0x30/0x40 # [ 27.198546] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 27.204508] RIP: 0033:0x7f8abf6c6473 # [ 27.208791] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <4<6>[ 33.247414] lkdtm: Performing direct entry ACCESS_NULL 8> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 1<6>[ 33.255267] lkdtm: attempting bad read at 0000000000000000 8 # [ 27.230073] RSP: 002b:00007fff76f70888 EFLAGS: 00000246 <1>[ 33.267928] BUG: kernel NULL pointer dereference, address: 0000000000000000 <1>[ 33.282170] #PF: supervisor read access in kernel mode <1>[ 33.288196] #PF: error_code(0x0000) - not-present page <6>[ 33.294222] PGD 0 P4D 0 <4>[ 33.297330] Oops: 0000 [#13] SMP PTI <4>[ 33.301609] CPU: 0 PID: 1870 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 33.310549] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 33.317646] RIP: 0010:lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 33.323192] Code: db d7 fb ff be 00 10 00 00 48 89 ef e8 0a 6d 0a ff e9 69 ff ff ff 0f 1f 44 00 00 53 31 f6 48 c7 c7 d0 35 38 89 e8 b5 d7 fb ff <48> 8b 1c 25 00 00 00 00 b8 de c0 de c0 48 c7 c7 f8 35 38 89 48 01 <4>[ 33.344462] RSP: 0018:ffffac7e0267fe58 EFLAGS: 00010246 <4>[ 33.350587] RAX: 000000000000002e RBX: 0000000000000027 RCX: 0000000000000000 <4>[ 33.358846] RDX: 0000000000000000 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 <4>[ 33.367106] RBP: ffffffff893826c1 R08: 0000000000000000 R09: 0000000000000000 <4>[ 33.375366] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c <4>[ 33.383626] R13: ffffac7e0267ff10 R14: ffffac7e0267ff10 R15: ffff90a842f98000 <4>[ 33.391887] FS: 00007f691d34f580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 33.401214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.407921] CR2: 0000000000000000 CR3: 00000001036dc001 CR4: 00000000003706f0 <4>[ 33.416180] Call Trace: <4>[ 33.419200] ? __die_body.cold+0x1a/0x1f <4>[ 33.423875] ? no_context+0x177/0x380 <4>[ 33.428259] ? exc_page_fault+0x53/0x170 <4>[ 33.432934] ? asm_exc_page_fault+0x1e/0x30 <4>[ 33.437897] ? lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 33.442764] ? lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 33.447626] direct_entry.cold+0x2c/0x38 <4>[ 33.452296] full_proxy_write+0x53/0x80 <4>[ 33.456873] vfs_write+0xe7/0x3b0 <4>[ 33.460867] ksys_write+0x68/0xf0 <4>[ 33.464859] do_syscall_64+0x30/0x40 <4>[ 33.469144] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 33.475077] RIP: 0033:0x7f691d265473 <4>[ 33.479356] 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>[ 33.500619] RSP: 002b:00007ffe32580018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 33.509355] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f691d265473 <4>[ 33.517613] RDX: 000000000000000c RSI: 00007f691d159000 RDI: 0000000000000001 <4>[ 33.525872] RBP: 00007f691d159000 R08: 00007f691d158010 R09: 0000000000000000 <4>[ 33.534132] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 33.542391] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 33.550656] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 33.603422] CR2: 0000000000000000 <4>[ 33.607409] ---[ end trace 4d2843ad41e5eefc ]--- <4>[ 33.612846] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 33.617513] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 33.638785] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 33.644910] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 33.653160] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 33.661420] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 33.669680] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 33.677939] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 33.686199] FS: 00007f691d34f580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 33.695525] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 33.702231] CR2: 0000000000000000 CR3: 00000001036dc001 CR4: 00000000003706f0 <3>[ 33.710491] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 33.720693] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1870, name: cat <4>[ 33.729437] INFO: lockdep is turned off. <4>[ 33.734105] irq event stamp: 0 <4>[ 33.737793] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 33.745083] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 33.754501] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 33.763918] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 33.771199] CPU: 0 PID: 1870 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 33.780138] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 33.787233] Call Trace: <4>[ 33.790253] dump_stack+0x77/0x9b <4>[ 33.794248] ___might_sleep.cold+0xa6/0xb6 <4>[ 33.799117] exit_signals+0x1c/0x300 <4>[ 33.803403] do_exit+0xc2/0xab0 <4>[ 33.807196] ? ksys_write+0x68/0xf0 <4>[ 33.811372] make_task_dead+0x2f/0x30 <4>[ 33.815750] rewind_stack_and_make_dead+0x17/0x20 <4>[ 33.821293] RIP: 0033:0x7f691d265473 <4>[ 33.825572] 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>[ 33.846835] RSP: 002b:00007ffe32580018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 33.855572] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f691d265473 <4>[ 33.863832] RDX: 000000000000000c RSI: 00007f691d159000 RDI: 0000000000000001 <4>[ 33.872091] RBP: 00007f691d159000 R08: 00007f691d158010 R09: 0000000000000000 <4>[ 33.880352] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 33.888603] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 ORIG_RAX: 0000000000000001 # [ 27.238852] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f8abf6c6473 # [ 27.253319] RDX: 000000000000000b RSI: 00007f8abf5ba000 RDI: 0000000000000001 # [ 27.261581] RBP: 00007f8abf5ba000 R08: 00007f8abf5b9010 R09: 0000000000000000 # [ 27.269843] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 27.278107] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 27.286379] irq event stamp: 0 # [ 27.290085] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 27.303588] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 27.313018] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 27.322448] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 27.329739] ---[ end trace 4d2843ad41e5eef3 ]--- # [ 27.335186] lkdtm: ok: SMEP did not get cleared # [ 27.340536] lkdtm: trying to clear SMEP with call gadget # [ 27.346761] lkdtm: ok:<6>[ 33.993536] lkdtm: Performing direct entry WRITE_RO <6>[ 34.002065] lkdtm: attempting bad rodata write at ffffffff88ef87f0 <1>[ 34.009294] BUG: unable to handle page fault for address: ffffffff88ef87f0 SMEP removal was reverted # UNSET_SMEP: saw 'pinned CR4 bits c<1>[ 34.017289] #PF: supervisor write access in kernel mode <1>[ 34.029625] #PF: error_code(0x0003) - permissions violation <6>[ 34.036137] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD 80000000264000e1 <4>[ 34.043914] Oops: 0003 [#14] SMP PTI <4>[ 34.048192] CPU: 3 PID: 1906 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 34.057132] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 34.064229] RIP: 0010:lkdtm_WRITE_RO+0x2e/0x3a <4>[ 34.069479] Code: 00 48 c7 c7 b0 34 38 89 48 c7 c6 f0 87 ef 88 e8 5f da fb ff 48 8b 05 a4 91 a9 00 ba 34 12 cd ab 48 c7 c7 e0 34 38 89 48 31 d0 <48> 89 05 8e 91 a9 00 e9 3d da fb ff 0f 1f 44 00 00 48 8b 05 dd ac <4>[ 34.090751] RSP: 0018:ffffac7e0270fe60 EFLAGS: 00010202 <4>[ 34.096876] RAX: 000000000198b861 RBX: 0000000000000028 RCX: 0000000000000000 <4>[ 34.105136] RDX: 00000000abcd1234 RSI: ffff90a8bad9bf50 RDI: ffffffff893834e0 <4>[ 34.113410] RBP: ffffffff893826cd R08: 0000000000000000 R09: 0000000000000000 <4>[ 34.121701] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000009 <4>[ 34.129959] R13: ffffac7e0270ff10 R14: ffffac7e0270ff10 R15: ffff90a8464da000 <4>[ 34.138219] FS: 00007f3adfa88580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 <4>[ 34.147547] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 34.154252] CR2: ffffffff88ef87f0 CR3: 00000001058f6005 CR4: 00000000003706e0 <4>[ 34.162512] Call Trace: <4>[ 34.165531] ? __die_body.cold+0x1a/0x1f <4>[ 34.170200] ? no_context+0x177/0x380 <4>[ 34.174579] ? exc_page_fault+0xd7/0x170 <4>[ 34.179247] ? asm_exc_page_fault+0x1e/0x30 <4>[ 34.184208] ? lkdtm_WRITE_RO+0x2e/0x3a <4>[ 34.188779] direct_entry.cold+0x2c/0x38 <4>[ 34.193449] full_proxy_write+0x53/0x80 <4>[ 34.198022] vfs_write+0xe7/0x3b0 <4>[ 34.202010] ksys_write+0x68/0xf0 <4>[ 34.205991] do_syscall_64+0x30/0x40 <4>[ 34.210271] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 34.216202] RIP: 0033:0x7f3adf99e473 <4>[ 34.220473] 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>[ 34.241748] RSP: 002b:00007ffe8665c2d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 34.250484] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f3adf99e473 <4>[ 34.258746] RDX: 0000000000000009 RSI: 00007f3adf892000 RDI: 0000000000000001 <4>[ 34.267006] RBP: 00007f3adf892000 R08: 00007f3adf891010 R09: 0000000000000000 <4>[ 34.275267] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 34.283526] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 hanged:': ok ok 14 selftests: lkdtm: UNSET_SMEP.sh # selftests<4>[ 34.291789] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 34.350780] CR2: ffffffff88ef87f0 <4>[ 34.354760] ---[ end trace 4d2843ad41e5eefd ]--- <4>[ 34.360206] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 34.364873] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 34.386146] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 34.392269] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 34.400530] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 34.408790] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 34.417049] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 34.425310] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 34.433570] FS: 00007f3adfa88580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 <4>[ 34.442898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 34.449605] CR2: ffffffff88ef87f0 CR3: 00000001058f6005 CR4: 00000000003706e0 : lkdtm: DOUBLE_FAULT.sh # [ 27.421386] lkdtm: Performing direct entry DOUBLE_FAULT # [ 27.432988] 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 # [ 27.509441] lkdtm: Performing direct entry CORRUPT_PAC # [ 27.519017] 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 # [ 27.594152] lkdtm: Performing direct entry UNALIGNED_LOAD_STORE_WRITE # [ 27.606633] lkdtm: XFAIL: arch has CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS # UNALIGNED_LOAD_STORE_WRITE: saw 'XFAIL': [SKIP] ok 17 selftests: lkdtm: UNALIGNED_LOAD_STORE_WRITE.sh # SKIP # selftests: lkdtm: OVERWRITE_ALLOCATION.sh # Skipping OVERWRITE_ALLOCATION: Corrupts memory on failure ok 18 selftests: lkdtm: OVERWRITE_ALLOCATION.sh # SKIP # selftests: lkdtm: WRITE_AFTER_FREE.sh # Skipping WRITE_AFTER_FREE: Corrupts memory on failure ok 19 selftests: lkdtm: WRITE_AFTER_FREE.sh # SKIP # selftests: lkdtm: READ_AFTER_FREE.sh # [ 27.732285] lkdtm: Performing direct entry READ_AFTER_FREE # [ 27.739118] lkdtm: Value in memory before free: 12345678 # [ 27.751533]<6>[ 34.577484] lkdtm: Performing direct entry WRITE_RO_AFTER_INIT lkdtm: Attempting bad read from freed memory # [ 27.763970] <6>[ 34.589360] lkdtm: attempting bad ro_after_init write at ffffffff8940a350 lkdtm: Memory was not poisoned # READ_AFTER_FREE: missing 'call<1>[ 34.603462] BUG: unable to handle page fault for address: ffffffff8940a350 <1>[ 34.617621] #PF: supervisor write access in kernel mode <1>[ 34.623746] #PF: error_code(0x0003) - permissions violation <6>[ 34.630259] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD 104993063 PTE 8000000026a0a061 <4>[ 34.639306] Oops: 0003 [#15] SMP PTI <4>[ 34.643585] CPU: 0 PID: 1942 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 34.652516] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 34.659611] RIP: 0010:lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a <4>[ 34.665934] Code: 35 38 89 e9 11 da fb ff 48 c7 c7 38 35 38 89 e8 05 da fb ff 48 8b 05 aa ac fa 00 ba 34 12 cd ab 48 c7 c7 e0 34 38 89 48 31 d0 <48> 89 05 94 ac fa 00 e9 e3 d9 fb ff 0f 1f 44 00 00 41 54 48 c7 c7 <4>[ 34.687207] RSP: 0018:ffffac7e027a7e60 EFLAGS: 00010202 <4>[ 34.693332] RAX: 00000000fe67479e RBX: 0000000000000029 RCX: 0000000000000000 <4>[ 34.701593] RDX: 00000000abcd1234 RSI: ffff90a8bac1bf50 RDI: ffffffff893834e0 <4>[ 34.709852] RBP: ffffffff893826d6 R08: 0000000000000000 R09: 0000000000000000 <4>[ 34.718112] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000014 <4>[ 34.726372] R13: ffffac7e027a7f10 R14: ffffac7e027a7f10 R15: ffff90a845ac1000 <4>[ 34.734624] FS: 00007f3a2e620580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 34.743951] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 34.750658] CR2: ffffffff8940a350 CR3: 0000000102c22005 CR4: 00000000003706f0 <4>[ 34.758918] Call Trace: <4>[ 34.761939] ? __die_body.cold+0x1a/0x1f <4>[ 34.766606] ? no_context+0x177/0x380 <4>[ 34.770990] ? exc_page_fault+0xd7/0x170 <4>[ 34.775663] ? asm_exc_page_fault+0x1e/0x30 <4>[ 34.780626] ? lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a <4>[ 34.786261] direct_entry.cold+0x2c/0x38 <4>[ 34.790932] full_proxy_write+0x53/0x80 <4>[ 34.795510] vfs_write+0xe7/0x3b0 <4>[ 34.799503] ksys_write+0x68/0xf0 <4>[ 34.803494] do_syscall_64+0x30/0x40 <4>[ 34.807780] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 34.813703] RIP: 0033:0x7f3a2e536473 <4>[ 34.817983] 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>[ 34.839249] RSP: 002b:00007ffefb013dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 34.847995] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f3a2e536473 <4>[ 34.856254] RDX: 0000000000000014 RSI: 00007f3a2e42a000 RDI: 0000000000000001 <4>[ 34.864514] RBP: 00007f3a2e42a000 R08: 00007f3a2e429010 R09: 0000000000000000 <4>[ 34.872773] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 34.881032] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 34.889297] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 34.942068] CR2: ffffffff8940a350 <4>[ 34.946057] ---[ end trace 4d2843ad41e5eefe ]--- <4>[ 34.951505] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 34.956173] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 34.977435] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 34.983559] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 34.991820] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 35.000072] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 35.008329] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 35.016590] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 35.024849] FS: 00007f3a2e620580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 <4>[ 35.034177] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 35.040884] CR2: ffffffff8940a350 CR3: 0000000102c22005 CR4: 00000000003706f0 <3>[ 35.049137] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 <3>[ 35.059338] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1942, name: cat <4>[ 35.068082] INFO: lockdep is turned off. <4>[ 35.072748] irq event stamp: 0 <4>[ 35.076443] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 35.083733] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 35.093158] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 35.102583] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 35.109873] CPU: 0 PID: 1942 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 35.118804] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 35.125899] Call Trace: <4>[ 35.128919] dump_stack+0x77/0x9b <4>[ 35.132914] ___might_sleep.cold+0xa6/0xb6 <4>[ 35.137783] exit_signals+0x1c/0x300 <4>[ 35.142069] do_exit+0xc2/0xab0 <4>[ 35.145856] ? ksys_write+0x68/0xf0 <4>[ 35.150040] make_task_dead+0x2f/0x30 <4>[ 35.154417] rewind_stack_and_make_dead+0x17/0x20 <4>[ 35.159951] RIP: 0033:0x7f3a2e536473 <4>[ 35.164222] 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>[ 35.185484] RSP: 002b:00007ffefb013dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 35.194230] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f3a2e536473 <4>[ 35.202490] RDX: 0000000000000014 RSI: 00007f3a2e42a000 RDI: 0000000000000001 <4>[ 35.210749] RBP: 00007f3a2e42a000 R08: 00007f3a2e429010 R09: 0000000000000000 <4>[ 35.219011] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 35.227262] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 trace:': [FAIL] 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 # [ 27.877091] lkdtm: Performing direct entry READ_BUDDY_AFTER_FREE # [ 27.887783] lkdtm: Value in memory before free: 12345678 # [ 27.900171] lkdtm: Attempting to read from freed memory # [ 27.912518] 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 # [ 27.988021] lkdtm: Performing direct entry SLAB_FREE_DOUBLE # [ 27.998875] 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 # [ 28.083241] lkdtm: Performing direct entry SLAB_FREE_CROSS # [ 28.091881] lkdtm: Attempting cross-cache slab f<6>[ 35.337402] lkdtm: Performing direct entry WRITE_KERN <6>[ 35.347130] lkdtm: attempting bad 7223110 byte write at ffffffff8845f5c6 <1>[ 35.354913] BUG: unable to handle page fault for address: ffffffff8845f5c6 <1>[ 35.362913] #PF: supervisor write access in kernel mode ree ... # SLAB_FREE_CROSS: missing 'call trace:': [FAIL] not o<1>[ 35.369040] #PF: error_code(0x0003) - permissions violation <6>[ 35.381768] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD 25a000e1 <4>[ 35.388770] Oops: 0003 [#16] SMP PTI <4>[ 35.393041] CPU: 2 PID: 1978 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 35.401982] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 35.409079] RIP: 0010:lkdtm_WRITE_KERN+0x38/0x4e <4>[ 35.414523] Code: 53 48 c7 c3 c6 f5 45 88 49 89 dc 48 89 da 49 81 ec 80 be d7 87 4c 89 e6 e8 b8 d9 fb ff 48 89 df 4c 89 e1 48 c7 c6 80 be d7 87 a4 48 c7 c7 e0 34 38 89 e8 9d d9 fb ff 5b 41 5c e9 b7 fe ff ff <4>[ 35.435798] RSP: 0018:ffffac7e0283fe50 EFLAGS: 00010246 <4>[ 35.441914] RAX: 000000000000003c RBX: ffffffff8845f5c6 RCX: 00000000006e3746 <4>[ 35.450174] RDX: 0000000000000000 RSI: ffffffff87d7be80 RDI: ffffffff8845f5c6 <4>[ 35.458433] RBP: ffffffff893826ea R08: 0000000000000000 R09: 0000000000000000 <4>[ 35.466693] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000000006e3746 <4>[ 35.474954] R13: ffffac7e0283ff10 R14: ffffac7e0283ff10 R15: ffff90a842c39000 <4>[ 35.483214] FS: 00007f03ec811580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 35.492542] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 35.499248] CR2: ffffffff8845f5c6 CR3: 0000000102fd4004 CR4: 00000000003706e0 <4>[ 35.507507] Call Trace: <4>[ 35.510527] ? __die_body.cold+0x1a/0x1f <4>[ 35.515198] ? no_context+0x177/0x380 <4>[ 35.519575] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 35.525313] ? exc_page_fault+0xd7/0x170 <4>[ 35.529982] ? asm_exc_page_fault+0x1e/0x30 <4>[ 35.534943] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 35.540680] ? lkdtm_SLAB_FREE_PAGE+0x40/0x40 <4>[ 35.545834] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 <4>[ 35.551570] ? lkdtm_WRITE_KERN+0x38/0x4e <4>[ 35.556354] direct_entry.cold+0x2c/0x38 <4>[ 35.561025] full_proxy_write+0x53/0x80 <4>[ 35.565597] vfs_write+0xe7/0x3b0 <4>[ 35.569586] ksys_write+0x68/0xf0 <4>[ 35.573575] do_syscall_64+0x30/0x40 <4>[ 35.577855] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 35.583786] RIP: 0033:0x7f03ec727473 <4>[ 35.588057] 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>[ 35.609329] RSP: 002b:00007ffc5679b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 35.618099] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f03ec727473 <4>[ 35.626366] RDX: 000000000000000b RSI: 00007f03ec61b000 RDI: 0000000000000001 <4>[ 35.634625] RBP: 00007f03ec61b000 R08: 00007f03ec61a010 R09: 0000000000000000 <4>[ 35.642885] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 35.651145] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 k 24 selftests: lkdtm: SLAB_FREE_CROSS.sh # exit=1 # selftests:<4>[ 35.659422] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 35.718412] CR2: ffffffff8845f5c6 <4>[ 35.722415] ---[ end trace 4d2843ad41e5eeff ]--- <4>[ 35.727860] RIP: 0010:lkdtm_BUG+0x5/0x10 <4>[ 35.732529] Code: 89 ff e8 4e d8 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 00 62 0b 03 <4>[ 35.753796] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 <4>[ 35.759920] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 <4>[ 35.768182] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 <4>[ 35.776441] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 35.784700] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 35.792961] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 <4>[ 35.801221] FS: 00007f03ec811580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 35.810551] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 35.817256] CR2: ffffffff8845f5c6 CR3: 0000000102fd4004 CR4: 00000000003706e0 lkdtm: SLAB_FREE_PAGE.sh # [ 28.163645] lkdtm: Performing direct entry SLAB_FREE_PAGE # [ 28.172736] 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 # [ 28.353651] lkdtm: Performing direct entry EXEC_DATA # [ 28.364715] lkdtm: attempting ok execution at ffffffff87d7be80 # [ 28.377739] lkdtm: attempting bad execution<6>[ 35.917566] lkdtm: Performing direct entry REFCOUNT_INC_OVERFLOW <6>[ 35.925792] lkdtm: attempting good refcount_inc() without overflow <6>[ 35.933020] lkdtm: attempting bad refcount_inc() overflow <4>[ 35.939348] ------------[ cut here ]------------ <4>[ 35.944795] refcount_t: saturated; leaking memory. <4>[ 35.950467] WARNING: CPU: 2 PID: 2014 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 at ffffffff8ae31d00 # [ 28.390873] kernel tried to execute N<4>[ 35.960193] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 36.019143] CPU: 2 PID: 2014 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 36.028085] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 36.035182] RIP: 0010:refcount_warn_saturate+0x51/0x110 <4>[ 36.041309] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d <4>[ 36.062585] RSP: 0018:ffffac7e028cfe48 EFLAGS: 00010286 <4>[ 36.068711] RAX: 0000000000000000 RBX: 000000000000002b RCX: 0000000000000000 <4>[ 36.076973] RDX: ffff90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 X-protected page - exploit attempt? (uid: 0) # [ 28.405717] B<4>[ 36.085245] RBP: ffffffff893826f5 R08: 0000000000000000 R09: 0000000000000000 <4>[ 36.099715] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 <4>[ 36.107980] R13: ffffac7e028cff10 R14: ffffac7e028cff10 R15: ffff90a84342e000 <4>[ 36.116245] FS: 00007fbe1af0a580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 36.125602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 UG: unable to handle page fault for address: ffffffff8ae31d00 #<4>[ 36.132330] CR2: 00007fbe1ad14000 CR3: 0000000102c1e003 CR4: 00000000003706e0 <4>[ 36.146794] Call Trace: <4>[ 36.149821] ? __warn+0x80/0x110 [ 28.413687] #PF: supervisor instruction fetch in kernel mode<4>[ 36.153744] ? refcount_warn_saturate+0x51/0x110 <4>[ 36.165414] ? report_bug+0x9e/0xc0 <4>[ 36.169602] ? handle_bug+0x41/0x90 <4>[ 36.173818] ? exc_invalid_op+0x14/0x70 <4>[ 36.178407] ? asm_exc_invalid_op+0x12/0x20 <4>[ 36.183421] ? refcount_warn_saturate+0x51/0x110 <4>[ 36.188899] ? refcount_warn_saturate+0x51/0x110 # [ 28.420297] #PF: error_code(0x0011) - permissions violati<4>[ 36.194365] lkdtm_REFCOUNT_INC_OVERFLOW+0x70/0x98 on # [ 28.426810] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD <4>[ 36.206225] direct_entry.cold+0x2c/0x38 80000000284000e3 # [ 28.434593] Oops: 0011 [#5] SMP PTI # [<4>[ 36.217116] full_proxy_write+0x53/0x80 28.438768] CPU: 0 PID: 1573 Comm: cat Tainted: G D W <4>[ 36.227907] vfs_write+0xe7/0x3b0 5.10.202-cip41 #1 # [ 28.447707] Hardware name: Google R<4>[ 36.238114] ksys_write+0x68/0xf0 ammus/Rammus, BIOS 09/04/2020 # [ 28.454804] RIP: 0010:data_<4>[ 36.248319] do_syscall_64+0x30/0x40 area+0x0/0x40 # [ 28.459477] Code: ff ff 00 85 3d 40 a8 90 ff<4>[ 36.258818] entry_SYSCALL_64_after_hwframe+0x62/0xc7 ff 00 84 3d 40 a8 90 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 <4>[ 36.270967] RIP: 0033:0x7fbe1ae20473 00 00 00 00 00 00 00 00 00 00 00 00 <0f> 1f 44 00 00 c3 cc cc cc<4>[ 36.281465] 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 cc 66 0f 1f 44 00 00 0f 1f 44 00 00 55 # [ 28.480747] RSP: 0<4>[ 36.308956] RSP: 002b:00007ffce2d5e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 018:ffffac7e0218fe48 EFLAGS: 00010246 # [ 28.486870] RAX: 000<4>[ 36.323921] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fbe1ae20473 0000000000033 RBX: 0000000000000001 RCX: 0000000000000000 # [ <4>[ 36.338403] RDX: 0000000000000016 RSI: 00007fbe1ad14000 RDI: 0000000000000001 <4>[ 36.352882] RBP: 00007fbe1ad14000 R08: 00007fbe1ad13010 R09: 0000000000000000 28.495130] RDX: 0000000000000000 RSI: ffff90a8bac1bf50 RDI: fff<4>[ 36.361148] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 36.375621] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 f90a8bac1bf50 # [ 28.503400] RBP: ffffffff8ae31d00 R08: 00000<4>[ 36.383890] irq event stamp: 0 <4>[ 36.393795] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 36.401089] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 36.410520] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 36.419950] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 36.427243] ---[ end trace 4d2843ad41e5ef00 ]--- <6>[ 36.432689] lkdtm: Overflow detected: saturated 00000000000 R09: 0000000000000000 # [ 28.511649] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000a # [ 28.519907] R13: ffffac7e0218ff10 R14: ffffac7e0218ff10 R15: ffff90a843000000 # [ 28.528167] FS: 00007fd948eda580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 28.537495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 28.544201] CR2: ffffffff8ae31d00 CR3: 00000001035f4005 CR4: 00000000003706f0 # [ 28.552460] Call Trace: # [ 28.555479] ? __die_body.cold+0x1a/0x1f # [ 28.560154] ? no_context+0x177/0x380 # [ 28.564539] ? exc_page_fault+0xd7/0x170 # [ 28.569212] ? asm_exc_page_fault+0x1e/0x30 # [ 28.574177] ? execute_location+0x45/0x56 # [ 28.578948] ? direct_entry.cold+0x2c/0x38 # [ 28.583811] ? full_proxy_write+0x53/0x80 # [ 28.588581] ? vfs_write+0xe7/0x3b0 # [ 28.592754] ? ksys_write+0x68/0xf0 # [ 28.596938] ? do_syscall_64+0x30/0x40 # [ 28.601413] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 28.607540] Mod<6>[ 36.531627] lkdtm: Performing direct entry REFCOUNT_ADD_OVERFLOW ules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors<6>[ 36.544491] lkdtm: attempting good refcount_add() without overflow cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf in<6>[ 36.557903] lkdtm: attempting bad refcount_add() overflow <4>[ 36.570435] ------------[ cut here ]------------ dustrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_m<4>[ 36.575882] refcount_t: saturated; leaking memory. emops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_ch<4>[ 36.587766] WARNING: CPU: 1 PID: 2047 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 arger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_e<4>[ 36.603671] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table c_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev sn<4>[ 36.662629] CPU: 1 PID: 2047 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 36.677789] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 d_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine <4>[ 36.684890] RIP: 0010:refcount_warn_saturate+0x51/0x110 <4>[ 36.697227] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore corebo<4>[ 36.718503] RSP: 0018:ffffac7e0294fe48 EFLAGS: 00010286 ot_table # [ 28.660304] CR2: ffffffff8ae31d00 # [ 28.66429<4>[ 36.730842] RAX: 0000000000000000 RBX: 000000000000002c RCX: 0000000000000000 2] ---[ end trace 4d2843ad41e5eef4 ]--- # [ 28.669728] RIP: 0<4>[ 36.745322] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 <4>[ 36.759800] RBP: ffffffff8938270b R08: 0000000000000000 R09: 0000000000000000 010:lkdtm_BUG+0x5/0x10 # [ 28.674387] Code: 89 ff e8 4e d8 79<4>[ 36.768087] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc <4>[ 36.782541] R13: ffffac7e0294ff10 R14: ffffac7e0294ff10 R15: ffff90a842f91000 <4>[ 36.797020] FS: 00007fda73c71580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84<4>[ 36.806361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 36.819278] CR2: 00007fda73a7b000 CR3: 00000001027fa002 CR4: 00000000003706e0 00 00 00 00 00 0f 1f 44 00 00 83 05 00 62 0b 03 # [ 28.69564<4>[ 36.827543] Call Trace: 6] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 28.701770]<4>[ 36.836777] ? __warn+0x80/0x110 <4>[ 36.846883] ? refcount_warn_saturate+0x51/0x110 RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 00000000000000<4>[ 36.852350] ? report_bug+0x9e/0xc0 00 # [ 28.710029] RDX: 0000000000000000 RSI: ffff90a8bad1bf50<4>[ 36.862727] ? handle_bug+0x41/0x90 <4>[ 36.873128] ? exc_invalid_op+0x14/0x70 RDI: ffffffff88ef8370 # [ 28.718289] RBP: ffffffff893e8808 R<4>[ 36.877704] ? asm_exc_invalid_op+0x12/0x20 08: 0000000000000001 R09: 0000000000000001 # [ 28.726548] R10<4>[ 36.888877] ? refcount_warn_saturate+0x51/0x110 <4>[ 36.900537] ? refcount_warn_saturate+0x51/0x110 : 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 36.905986] lkdtm_REFCOUNT_ADD_OVERFLOW+0x7f/0xa7 <4>[ 36.917838] direct_entry.cold+0x2c/0x38 # [ 28.734808] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15<4>[ 36.922513] full_proxy_write+0x53/0x80 : ffff90a8436f0000 # [ 28.743060] FS: 00007fd948eda580(0000)<4>[ 36.933295] vfs_write+0xe7/0x3b0 <4>[ 36.943525] ksys_write+0x68/0xf0 GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 28.7523<4>[ 36.947519] do_syscall_64+0x30/0x40 <4>[ 36.958009] entry_SYSCALL_64_after_hwframe+0x62/0xc7 88] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 28.<4>[ 36.963969] RIP: 0033:0x7fda73b87473 <4>[ 36.974462] 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 759094] CR2: ffffffff8ae31d00 CR3: 00000001035f4005 CR4: 0000000<4>[ 36.995740] RSP: 002b:00007ffff8692378 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 0003706f0 # [ 28.767353] BUG: sleeping function called from i<4>[ 37.010701] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fda73b87473 <4>[ 37.025179] RDX: 0000000000000016 RSI: 00007fda73a7b000 RDI: 0000000000000001 nvalid context at include/linux/percpu-rwsem.h:49 # [ 28.7775<4>[ 37.033444] RBP: 00007fda73a7b000 R08: 00007fda73a7a010 R09: 0000000000000000 <4>[ 37.047917] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 37.056182] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 54] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1573,<4>[ 37.064449] irq event stamp: 0 <4>[ 37.074363] hardirqs last enabled at (0): [<0000000000000000>] 0x0 name: cat # [ 28.786299] INFO: lockdep is turned off. # [ <4>[ 37.081657] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 37.097294] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 28.790965] irq event stamp: 0 # [ 28.794662] hardirqs last <4>[ 37.106725] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 37.120226] ---[ end trace 4d2843ad41e5ef01 ]--- enabled at (0): [<0000000000000000>] 0x0 # [ 28.801952] hardi<6>[ 37.125676] lkdtm: Overflow detected: saturated rqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 28.811378] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 28.820793] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 28.828082] CPU: 0 PID: 1573 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 28.837020] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 28.844115] Call Trace: # [ 28.847125] dump_stack+0x77/0x9b # [ 28.851120] ___might_sleep.cold+0xa6/0xb6 # [ 28.855991] exit_signals+0x1c/0x300 # [ 28.860275] do_exit+0xc2/0xab0 # [ 28.864068] ? ksys_write+0x68/0xf0 # [ 28.868245] make_task_dead+0x2f/0x30 # [ 28.872621] rewind_stack_and_make_dead+0x17/0x20 # [ 28.878161] RIP: 0033:0x7fd948df0473 # [ 28.882441] 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<6>[ 37.229884] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_OVERFLOW 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 28.90371<6>[ 37.238368] lkdtm: attempting bad refcount_inc_not_zero() overflow 2] RSP: 002b:00007ffd5c4256c8 EFLAGS: 00000246 ORIG_RAX: 0000000<4>[ 37.251777] ------------[ cut here ]------------ 000000001 # [ 28.912457] RAX: ffffffffffffffda RBX: 000000000<4>[ 37.263438] refcount_t: saturated; leaking memory. 000000a RCX: 00007fd948df0473 # [ 28.920717] RDX: 00000000000<4>[ 37.275327] WARNING: CPU: 1 PID: 2080 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 0000a RSI: 00007fd948ce4000 RDI: 0000000000000001 # [ 28.9289<4>[ 37.291226] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table 76] RBP: 00007fd948ce4000 R08: 00007fd948ce3010 R09: 00000000000<4>[ 37.350212] CPU: 1 PID: 2080 Comm: cat Tainted: G D W 5.10.202-cip41 #1 00000 # [ 28.937236] R10: fffffffffffffbc5 R11: 0000000000000<4>[ 37.365368] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 37.378677] RIP: 0010:refcount_warn_saturate+0x97/0x110 246 R12: 0000000000000001 # [ 28.945495] R13: 000000000000000<4>[ 37.384830] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d <4>[ 37.412317] RSP: 0018:ffffac7e029c7e38 EFLAGS: 00010282 1 R14: 0000000000020000 R15: 0000000000020000 # EXEC_DATA: saw <4>[ 37.418470] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 <4>[ 37.432942] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 'call trace:': ok ok 30 selftests: lkdtm: EXEC_DATA.sh # selft<4>[ 37.441207] RBP: ffffffff89382348 R08: 0000000000000000 R09: 0000000000000000 <4>[ 37.455680] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f ests: lkdtm: EXEC_STACK.sh # Killed # [ 29.040267] lkdtm: Pe<4>[ 37.463944] R13: ffffac7e029c7f10 R14: ffffac7e029c7f10 R15: ffff90a846427000 <4>[ 37.478417] FS: 00007f236bcbb580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 rforming direct entry EXEC_STACK # [ 29.046725] lkdtm: attemp<4>[ 37.487750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 37.500671] CR2: 00007f236bac5000 CR3: 0000000102d14001 CR4: 00000000003706e0 ting ok execution at ffffffff87d7be80 # [ 29.053535] lkdtm: a<4>[ 37.508935] Call Trace: ttempting bad execution at ffffac7e0222fe18 # [ 29.060492] ke<4>[ 37.518168] ? __warn+0x80/0x110 rnel tried to execute NX-protected page - exploit attempt? (uid:<4>[ 37.528279] ? refcount_warn_saturate+0x97/0x110 0) # [ 29.069148] BUG: unable to handle page fault for addre<4>[ 37.539941] ? report_bug+0x9e/0xc0 ss: ffffac7e0222fe18 # [ 29.083331] #PF: supervisor instructi<4>[ 37.550366] ? handle_bug+0x41/0x90 <4>[ 37.560763] ? exc_invalid_op+0x14/0x70 on fetch in kernel mode # [ 29.089963] #PF: error_code(0x0011<4>[ 37.565363] ? asm_exc_invalid_op+0x12/0x20 ) - permissions violation # [ 29.096474] PGD 100000067 P4D 10<4>[ 37.576535] ? refcount_warn_saturate+0x97/0x110 <4>[ 37.588197] ? refcount_warn_saturate+0x97/0x110 0000067 PUD 100248067 PMD 1035c0067 PTE 8000000105154063 # [ <4>[ 37.593647] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 37.606275] lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW+0x3e/0x76 29.105805] Oops: 0011 [#6] SMP PTI # [ 29.109988] CPU: 3 PID:<4>[ 37.612790] direct_entry.cold+0x2c/0x38 1611 Comm: cat Tainted: G D W 5.10.202-cip41 #1 #<4>[ 37.623671] full_proxy_write+0x53/0x80 [ 29.118926] Hardware name: Google Rammus/Rammus, BIOS 09/04<4>[ 37.634462] vfs_write+0xe7/0x3b0 <4>[ 37.644667] ksys_write+0x68/0xf0 /2020 # [ 29.126022] RIP: 0010:0xffffac7e0222fe18 # [ 29.1<4>[ 37.648662] do_syscall_64+0x30/0x40 <4>[ 37.659152] entry_SYSCALL_64_after_hwframe+0x62/0xc7 30689] Code: 00 00 18 fe 22 02 7e ac ff ff 1c f6 45 88 ff ff ff <4>[ 37.665087] RIP: 0033:0x7f236bbd1473 <4>[ 37.675577] 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 ff 20 00 00 00 00 00 00 00 66 26 38 89 ff ff ff ff 4b f7 45 88 f<4>[ 37.696856] RSP: 002b:00007ffe62b64fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 37.711814] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f236bbd1473 f ff ff ff <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f <4>[ 37.720079] RDX: 000000000000001f RSI: 00007f236bac5000 RDI: 0000000000000001 <4>[ 37.734553] RBP: 00007f236bac5000 R08: 00007f236bac4010 R09: 0000000000000000 1f 44 00 00 55 # [ 29.151962] RSP: 0018:ffffac7e0222fdf8 EFLA<4>[ 37.742819] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 37.757293] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 GS: 00010246 # [ 29.158086] RAX: 0000000000000033 RBX: 000000<4>[ 37.765563] irq event stamp: 0 <4>[ 37.775475] hardirqs last enabled at (0): [<0000000000000000>] 0x0 0000000001 RCX: 0000000000000000 # [ 29.166359] RDX: 00000000<4>[ 37.782769] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 00000000 RSI: ffff90a8bad9bf50 RDI: ffff90a8bad9bf50 # [ 29.1<4>[ 37.798419] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 37.814065] softirqs last disabled at (0): [<0000000000000000>] 0x0 74620] RBP: ffffac7e0222fe18 R08: 0000000000000000 R09: 00000000<4>[ 37.821363] ---[ end trace 4d2843ad41e5ef02 ]--- <6>[ 37.833019] lkdtm: Overflow detected: saturated 00000000 # [ 29.182879] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000b # [ 29.191137] R13: ffffac7e0222ff10 R14: ffffac7e0222ff10 R15: ffff90a843f80000 # [ 29.199411] FS: 00007f8938ae1580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 # [ 29.208739] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 29.215446] CR2: ffffac7e0222fe18 CR3: 0000000103534003 CR4: 00000000003706e0 # [ 29.223704] Call Trace: # [ 29.226724] ? __die_body.cold+0x1a/0x1f # [ 29.231411] ? no_context+0x177/0x380 # [ 29.235789] ? exc_page_fault+0xd7/0x170 # [ 29.240458] ? asm_exc_page_fault+0x1e/0x30 # [ 29.245432] ? execute_location+0x45/0x56 # [ 29.250198] ? lkdtm_EXEC_STACK+0x26/0x44 # [ 29.254954] ? direct_entry.cold+0x2c/0x38 # [ 29.259809] ? full_proxy_write+0x53/0x80 # [ 29.264574] ? vfs_write+0xe7/0x3b0 # [ 29.268757] ? ksys_write+0x68/0xf0 # [ 29.272939] ? do_syscall_64+0x30/0<6>[ 37.926445] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_OVERFLOW x40 # [ 29.277412] ? entry_SYSCALL_64_after_hwframe+0x62/0xc<6>[ 37.939475] lkdtm: attempting bad refcount_add_not_zero() overflow 7 # [ 29.283539] Modules linked in: fuse ip_tables cros_ec_li<4>[ 37.952886] ------------[ cut here ]------------ <4>[ 37.964548] refcount_t: saturated; leaking memory. d_angle cros_ec_sensors cros_ec_sensors_core industrialio_trigge<4>[ 37.970227] WARNING: CPU: 1 PID: 2113 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 red_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videob<4>[ 37.986131] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 38.045085] CPU: 1 PID: 2113 Comm: cat Tainted: G D W 5.10.202-cip41 #1 uf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_e<4>[ 38.054031] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 c_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub c<4>[ 38.067371] RIP: 0010:refcount_warn_saturate+0x97/0x110 ros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp<4>[ 38.079705] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d _thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_no<4>[ 38.107204] RSP: 0018:ffffac7e02a4fe38 EFLAGS: 00010282 tify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid<4>[ 38.119546] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 chromeos_pstore coreboot_table # [ 29.342525] CR2: ffffac7e0<4>[ 38.134021] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 222fe18 # [ 29.346502] ---[ end trace 4d2843ad41e5eef5 ]--- <4>[ 38.148500] RBP: ffffffff89382368 R08: 0000000000000000 R09: 0000000000000000 # [ 29.351946] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 29.356613] <4>[ 38.162980] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f Code: 89 ff e8 4e d8 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 e<4>[ 38.177461] R13: ffffac7e02a4ff10 R14: ffffac7e02a4ff10 R15: ffff90a8426e8000 a ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00<4>[ 38.191944] FS: 00007efc8a3e6580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 00 6<4>[ 38.207493] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 2 0b 03 # [ 29.377882] RSP: 0018:ffffac7e0134fe60 EFLAGS: 000<4>[ 38.220421] CR2: 00007efc8a1f0000 CR3: 0000000102780005 CR4: 00000000003706e0 10282 # [ 29.384006] RAX: ffffffff87d7bab0 RBX: 0000000000000<4>[ 38.234903] Call Trace: 001 RCX: 0000000000000000 # [ 29.392264] RDX: 000000000000000<4>[ 38.244146] ? __warn+0x80/0x110 0 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 29.400536] <4>[ 38.254254] ? refcount_warn_saturate+0x97/0x110 RBP: ffffffff893e8808 R08: 0000000000000001 R09: 000000000000000<4>[ 38.265919] ? report_bug+0x9e/0xc0 1 # [ 29.408797] R10: 00000000ffffe000 R11: 3fffffffffffffff <4>[ 38.276321] ? handle_bug+0x41/0x90 R12: 0000000000000004 # [ 29.417056] R13: ffffac7e0134ff10 R1<4>[ 38.286722] ? exc_invalid_op+0x14/0x70 4: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 29.425315] FS: <4>[ 38.297511] ? asm_exc_invalid_op+0x12/0x20 00007f8938ae1580(0000) GS:ffff90a8bad80000(0000) knlGS:00000000<4>[ 38.308694] ? refcount_warn_saturate+0x97/0x110 00000000 # [ 29.434643] CS: 0010 DS: 0000 ES: 0000 CR0: 0000<4>[ 38.320357] ? refcount_warn_saturate+0x97/0x110 000080050033 # [ 29.441359] CR2: ffffac7e0222fe18 CR3: 000000<4>[ 38.332023] __refcount_add_not_zero.constprop.0+0x2a/0x35 0103534003 CR4: 00000000003706e0 # EXEC_STACK: saw 'call trace:<4>[ 38.344658] lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW+0x3e/0x76 ': ok ok 31 selftests: lkdtm: EXEC_STACK.sh # selftests: lkdtm<4>[ 38.357390] direct_entry.cold+0x2c/0x38 : EXEC_KMALLOC.sh # Killed # [ 29.557634] lkdtm: Performing <4>[ 38.368279] full_proxy_write+0x53/0x80 direct entry EXEC_KMALLOC # [ 29.567815] lkdtm: attempting ok<4>[ 38.379071] vfs_write+0xe7/0x3b0 execution at ffffffff87d7be80 # [ 29.574653] lkdtm: attempti<4>[ 38.389277] ksys_write+0x68/0xf0 ng bad execution at ffff90a84379ee80 # [ 29.581563] kernel tr<4>[ 38.399484] do_syscall_64+0x30/0x40 ied to execute NX-protected page - exploit attempt? (uid: 0) # <4>[ 38.409978] entry_SYSCALL_64_after_hwframe+0x62/0xc7 [ 29.590216] BUG: unable to handle page fault for address: fff<4>[ 38.422126] RIP: 0033:0x7efc8a2fc473 f90a84379ee80 # [ 29.598184] #PF: supervisor instruction fetc<4>[ 38.432624] 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 h in kernel mode # [ 29.604793] #PF: error_code(0x0011) - per<4>[ 38.460116] RSP: 002b:00007ffc2db0e858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 missions violation # [ 29.611304] PGD 28601067 P4D 28601067 P<4>[ 38.475081] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007efc8a2fc473 UD 100878063 PMD 103684063 PTE 800000010379e063 # [ 29.620440<4>[ 38.489558] RDX: 000000000000001f RSI: 00007efc8a1f0000 RDI: 0000000000000001 ] Oops: 0011 [#7] SMP PTI # [ 29.624622] CPU: 3 PID: 1648 Com<4>[ 38.504040] RBP: 00007efc8a1f0000 R08: 00007efc8a1ef010 R09: 0000000000000000 m: cat Tainted: G D W 5.10.202-cip41 #1 # [ 29.6<4>[ 38.518521] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 33561] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # <4>[ 38.532999] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 [ 29.640655] RIP: 0010:0xffff90a84379ee80 # [ 29.645322] Co<4>[ 38.547486] irq event stamp: 0 de: 00 00 02 00 00 00 00 00 00 00 60 22 b5 45 a8 90 ff ff 04 00 <4>[ 38.557412] hardirqs last enabled at (0): [<0000000000000000>] 0x0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 eb f2 2f 87 ff ff ff f<4>[ 38.570923] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 f <0f> 1f 44 00 00 c3 cc cc cc cc 66 0f 1f 44 00 00 0f 1f 44 00 <4>[ 38.586568] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 00 55 # [ 29.666585] RSP: 0018:ffffac7e022bfe38 EFLAGS: 00010<4>[ 38.602214] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 38.615721] ---[ end trace 4d2843ad41e5ef03 ]--- <6>[ 38.621159] lkdtm: Overflow detected: saturated 246 # [ 29.672709] RAX: 0000000000000033 RBX: 0000000000000001 RCX: 0000000000000000 # [ 29.680969] RDX: 0000000000000000 RSI: ffff90a8bad9bf50 RDI: ffff90a8bad9bf50 # [ 29.689227] RBP: ffff90a84379ee80 R08: 0000000000000000 R09: 0000000000000000 # [ 29.697487] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d # [ 29.705748] R13: ffffac7e022bff10 R14: ffffac7e022bff10 R15: ffff90a8436da000 # [ 29.714008] FS: 00007f8c63b99580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 # [ 29.723359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 29.730065] CR2: ffff90a84379ee80 CR3: 0000000102862003 CR4: 00000000003706e0 # [ 29.738324] Call Trace: # [ 29.741364] ? __die_body.cold+0x1a/0x1f # [ 29.746033] ? no_context+0x177/0x380 # [ 29.750411] ? exc_page_fault+0xd7/0x170 # [ 29.755078] ? asm_exc_page_fault+0x1e/0x30 # [ 29.760041] ? execute_location+0x45/0x56 # [ 29.764805] ? lkdtm_EXEC_KMALLOC+0x2c/0x40 # [ 29.769764] ? direct_entry.cold+0x2c/0x38 # [ 29.774627] ? full_proxy_write+0x53/0x80 # [ 29.779384] ? vfs_write+0xe7/0x3b0 # [ 29.783566] ? ksys_<6>[ 38.732703] lkdtm: Performing direct entry REFCOUNT_DEC_ZERO <6>[ 38.744992] lkdtm: attempting good refcount_dec() <6>[ 38.750560] lkdtm: attempting bad refcount_dec() to zero <4>[ 38.756786] ------------[ cut here ]------------ <4>[ 38.762232] refcount_t: decrement hit 0; leaking memory. <4>[ 38.768488] WARNING: CPU: 2 PID: 2147 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 write+0x68/0xf0 # [ 29.787739] ? do_syscall_64+0x30/0x40 # <4>[ 38.778212] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 38.837169] CPU: 2 PID: 2147 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 38.846141] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 38.853242] RIP: 0010:refcount_warn_saturate+0xfb/0x110 <4>[ 38.859414] Code: a0 d3 2d 89 c6 05 b5 fc 16 02 01 e8 d9 f2 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 70 d3 2d 89 c6 05 9c fc 16 02 01 e8 bf f2 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>[ 38.880690] RSP: 0018:ffffac7e02a9fe48 EFLAGS: 00010286 <4>[ 38.886820] RAX: 0000000000000000 RBX: 000000000000002f RCX: 0000000000000000 <4>[ 38.895086] RDX: ffff90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 <4>[ 38.903375] RBP: ffffffff89382721 R08: 0000000000000000 R09: 0000000000000000 <4>[ 38.911642] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 38.919907] R13: ffffac7e02a9ff10 R14: ffffac7e02a9ff10 R15: ffff90a843f49000 <4>[ 38.928173] FS: 00007f0e72af9580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 38.937505] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 38.944217] CR2: 00007f0e72903000 CR3: 0000000102c04001 CR4: 00000000003706e0 <4>[ 38.952480] Call Trace: <4>[ 38.955504] ? __warn+0x80/0x110 <4>[ 38.959432] ? refcount_warn_saturate+0xfb/0x110 <4>[ 38.964883] ? report_bug+0x9e/0xc0 <4>[ 38.969104] ? handle_bug+0x41/0x90 <4>[ 38.973320] ? exc_invalid_op+0x14/0x70 <4>[ 38.977894] ? asm_exc_invalid_op+0x12/0x20 <4>[ 38.982861] ? refcount_warn_saturate+0xfb/0x110 <4>[ 38.988320] ? refcount_warn_saturate+0xfb/0x110 <4>[ 38.993797] lkdtm_REFCOUNT_DEC_ZERO+0x4d/0xbd <4>[ 38.999054] direct_entry.cold+0x2c/0x38 <4>[ 39.003728] full_proxy_write+0x53/0x80 <4>[ 39.008354] vfs_write+0xe7/0x3b0 [ 29.792212] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ <4>[ 39.012356] ksys_write+0x68/0xf0 <4>[ 39.022558] do_syscall_64+0x30/0x40 <4>[ 39.026872] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 39.032807] RIP: 0033:0x7f0e72a0f473 <4>[ 39.037121] 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>[ 39.058415] RSP: 002b:00007ffcef85d5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 39.067165] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f0e72a0f473 <4>[ 39.075431] RDX: 0000000000000012 RSI: 00007f0e72903000 RDI: 0000000000000001 <4>[ 39.083695] RBP: 00007f0e72903000 R08: 00007f0e72902010 R09: 0000000000000000 <4>[ 39.091961] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 39.100228] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 39.108495] irq event stamp: 0 <4>[ 39.112227] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 39.119523] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 39.128984] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 39.138416] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 39.145710] ---[ end trace 4d2843ad41e5ef04 ]--- <6>[ 39.151159] lkdtm: Zero detected: saturated 29.798329] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 29.857311] CR2: ffff90a84379ee80 # [ 29.861300] ---[ end trace 4d2843ad41e5eef6 ]--- # [ 29.866736] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 29.871404] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 29.892666] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 29.898790] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 29.907049] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 29.915307] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 29.923567] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 29.931826] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 29.940084] FS: 00007f8c63b99580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 # [ 29.949410] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 29.956116] CR2: ffff90a84379ee80 CR3: 0000000102862003 CR4: 00000000003706e0 # [ 29.964377] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 29.974599] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1648, name: cat # [ 29.983367] INFO: lockdep is turned off. # [ 29.988034] irq event stamp: 0 # [ 29.991730] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 29.999019] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 30.008442] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 30.017867] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 30.025157] CPU: 3 PID: 1648 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 30.034086] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 30.041180] Call Tra<6>[ 39.389567] lkdtm: Performing direct entry REFCOUNT_DEC_NEGATIVE ce: # [ 30.044199] dump_stack+0x77/0x9b # [ 30.048187] _<6>[ 39.402054] lkdtm: attempting bad refcount_dec() below zero __might_sleep.cold+0xa6/0xb6 # [ 30.053051] exit_signals+0x1<4>[ 39.414787] ------------[ cut here ]------------ c/0x300 # [ 30.057331] do_exit+0xc2/0xab0 # [ 30.061153] <4>[ 39.426450] refcount_t: decrement hit 0; leaking memory. ? ksys_write+0x68/0xf0 # [ 30.065355] make_task_dead+0x2f/0<4>[ 39.438919] WARNING: CPU: 1 PID: 2183 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 x30 # [ 30.069732] rewind_stack_and_make_dead+0x17/0x20 # [<4>[ 39.454827] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table 30.075273] RIP: 0033:0x7f8c63aaf473 # [ 30.079552] Code: 8<4>[ 39.513786] CPU: 1 PID: 2183 Comm: cat Tainted: G D W 5.10.202-cip41 #1 b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f<4>[ 39.528945] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48<4>[ 39.542260] RIP: 0010:refcount_warn_saturate+0xfb/0x110 > 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18<4>[ 39.554603] Code: a0 d3 2d 89 c6 05 b5 fc 16 02 01 e8 d9 f2 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 70 d3 2d 89 c6 05 9c fc 16 02 01 e8 bf f2 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 30.100813] RSP: 002b:00007ffc3769e7f8 EFLAGS: 00000246 O<4>[ 39.582096] RSP: 0018:ffffac7e02b57e48 EFLAGS: 00010286 RIG_RAX: 0000000000000001 # [ 30.109558] RAX: ffffffffffffffd<4>[ 39.594442] RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000 a RBX: 000000000000000d RCX: 00007f8c63aaf473 # [ 30.117815] <4>[ 39.608922] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 RDX: 000000000000000d RSI: 00007f8c639a3000 RDI: 000000000000000<4>[ 39.623408] RBP: ffffffff89382733 R08: 0000000000000000 R09: 0000000000000000 1 # [ 30.126076] RBP: 00007f8c639a3000 R08: 00007f8c639a2010 <4>[ 39.637888] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 R09: 0000000000000000 # [ 30.134359] R10: fffffffffffffbc5 R1<4>[ 39.652370] R13: ffffac7e02b57f10 R14: ffffac7e02b57f10 R15: ffff90a843f14000 1: 0000000000000246 R12: 0000000000000001 # [ 30.142619] R13:<4>[ 39.666851] FS: 00007f39c8cba580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 #<4>[ 39.682411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 EXEC_KMALLOC: saw 'call trace:': ok ok 32 selftests: lkdtm: EX<4>[ 39.695358] CR2: 00007f39c8ac4000 CR3: 00000001035c2003 CR4: 00000000003706e0 <4>[ 39.709836] Call Trace: EC_KMALLOC.sh # selftests: lkdtm: EXEC_VMALLOC.sh # Killed # <4>[ 39.712863] ? __warn+0x80/0x110 <4>[ 39.722970] ? refcount_warn_saturate+0xfb/0x110 [ 30.237148] lkdtm: Performing direct entry EXEC_VMALLOC # [ <4>[ 39.728419] ? report_bug+0x9e/0xc0 30.244095] lkdtm: attempting ok execution at ffffffff87d7be80 <4>[ 39.738817] ? handle_bug+0x41/0x90 <4>[ 39.749214] ? exc_invalid_op+0x14/0x70 # [ 30.250910] lkdtm: attempting bad execution at ffffac7e002<4>[ 39.753791] ? asm_exc_invalid_op+0x12/0x20 57000 # [ 30.264041] kernel tried to execute NX-protected pag<4>[ 39.764966] ? refcount_warn_saturate+0xfb/0x110 <4>[ 39.776627] ? refcount_warn_saturate+0xfb/0x110 e - exploit attempt? (uid: 0) # [ 30.272699] BUG: unable to h<4>[ 39.782079] lkdtm_REFCOUNT_DEC_NEGATIVE+0x37/0x61 <4>[ 39.793930] direct_entry.cold+0x2c/0x38 andle page fault for address: ffffac7e00257000 # [ 30.286884]<4>[ 39.798606] full_proxy_write+0x53/0x80 #PF: supervisor instruction fetch in kernel mode # [ 30.2934<4>[ 39.809406] vfs_write+0xe7/0x3b0 <4>[ 39.819612] ksys_write+0x68/0xf0 93] #PF: error_code(0x0011) - permissions violation # [ 30.30<4>[ 39.823605] do_syscall_64+0x30/0x40 <4>[ 39.834096] entry_SYSCALL_64_after_hwframe+0x62/0xc7 0004] PGD 100000067 P4D 100000067 PUD 100248067 PMD 10098b067 PT<4>[ 39.840030] RIP: 0033:0x7f39c8bd0473 <4>[ 39.850524] 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 E 8000000102df7063 # [ 30.309360] Oops: 0011 [#8] SMP PTI # <4>[ 39.871804] RSP: 002b:00007ffd3fffe588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 39.886762] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f39c8bd0473 [ 30.313542] CPU: 2 PID: 1685 Comm: cat Tainted: G D W <4>[ 39.895026] RDX: 0000000000000016 RSI: 00007f39c8ac4000 RDI: 0000000000000001 <4>[ 39.909501] RBP: 00007f39c8ac4000 R08: 00007f39c8ac3010 R09: 0000000000000000 5.10.202-cip41 #1 # [ 30.322482] Hardware name: Google <4>[ 39.917765] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 39.932241] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 Rammus/Rammus, BIOS 09/04/2020 # [ 30.329578] RIP: 0010:0xff<4>[ 39.940509] irq event stamp: 0 ffac7e00257000 # [ 30.334238] Code: Unable to access opcode b<4>[ 39.950431] hardirqs last enabled at (0): [<0000000000000000>] 0x0 ytes at RIP 0xffffac7e00256fd6. # [ 30.342207] RSP: 0018:ffff<4>[ 39.963940] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 ac7e02367e38 EFLAGS: 00010246 # [ 30.348330] RAX: 00000000000<4>[ 39.979584] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 00033 RBX: 0000000000000001 RCX: 0000000000000000 # [ 30.3565<4>[ 39.995236] softirqs last disabled at (0): [<0000000000000000>] 0x0 89] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad<4>[ 40.008741] ---[ end trace 4d2843ad41e5ef05 ]--- 1bf50 # [ 30.364847] RBP: ffffac7e00257000 R08: 0000000000000<6>[ 40.020416] lkdtm: Negative detected: saturated 000 R09: 0000000000000000 # [ 30.373107] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000d # [ 30.381367] R13: ffffac7e02367f10 R14: ffffac7e02367f10 R15: ffff90a842df7000 # [ 30.389627] FS: 00007f1202cb3580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 30.398955] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 30.405661] CR2: ffffac7e00256fd6 CR3: 000000010379c001 CR4: 00000000003706e0 # [ 30.413919] Call Trace: # [ 30.416938] ? __die_body.cold+0x1a/0x1f # [ 30.421608] ? no_context+0x177/0x380 # [ 30.425986] ? exc_page_fault+0xd7/0x170 # [ 30.430655] ? asm_exc_page_fault+0x1e/0x30 # [ 30.435619] ? execute_location+0x45/0x56 # [ 30.440384] ? lkdtm_EXEC_VMALLOC+0x20/0x30 # [ 30.445351] ? direct_entry.cold+0x2c/0x38 # [ 30.450224] ? full_proxy_write+0x53/0x80 # [ 30.461200] ? vfs_write+0xe7/0x3b0 # [ 30.465382] ? ksys_write+0x68/0xf0 # [ 30.469556] ? do_syscall_64+0x30/0x40 # [ 30.474028] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 30.480154] Modules linked in: fuse i<6>[ 40.136387] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_NEGATIVE p_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core <6>[ 40.145515] lkdtm: attempting bad refcount_dec_and_test() below zero industrialio_triggered_buffer kfifo_buf industrialio uvcvideo sn<4>[ 40.159121] ------------[ cut here ]------------ d_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs vi<4>[ 40.170784] refcount_t: underflow; use-after-free. deobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs <4>[ 40.182675] WARNING: CPU: 1 PID: 2219 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_cor<4>[ 40.198581] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table e gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_c<4>[ 40.257541] CPU: 1 PID: 2219 Comm: cat Tainted: G D W 5.10.202-cip41 #1 ommon cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_le<4>[ 40.272704] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 d_backlight i2c_hid chromeos_pstore coreboot_table # [ 30.539<4>[ 40.286020] RIP: 0010:refcount_warn_saturate+0xba/0x110 141] CR2: ffffac7e00257000 # [ 30.543129] ---[ end trace 4d28<4>[ 40.298367] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 43ad41e5eef7 ]--- # [ 30.548574] RIP: 0010:lkdtm_BUG+0x5/0x10<4>[ 40.325882] RSP: 0018:ffffac7e02be7e40 EFLAGS: 00010286 # [ 30.553233] Code: 89 ff e8 4e d8 79 ff 48 c7 c0 ea ff ff <4>[ 40.338208] RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000000000 ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff f<4>[ 40.352685] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 f eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f <4>[ 40.367165] RBP: ffffffff89382388 R08: 0000000000000000 R09: 0000000000000000 44 00 00 83 05 00 62 0b 03 # [ 30.574495] RSP: 0018:ffffac7e0<4>[ 40.381645] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f 134fe60 EFLAGS: 00010282 # [ 30.580611] RAX: ffffffff87d7bab0<4>[ 40.396125] R13: ffffac7e02be7f10 R14: ffffac7e02be7f10 R15: ffff90a846658000 RBX: 0000000000000001 RCX: 0000000000000000 # [ 30.588870] R<4>[ 40.410605] FS: 00007fc2314c0580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 DX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370<4>[ 40.426153] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 30.597128] RBP: ffffffff893e8808 R08: 0000000000000001 R<4>[ 40.439080] CR2: 00007fc2312ca000 CR3: 00000001035c2004 CR4: 00000000003706e0 09: 0000000000000001 # [ 30.605387] R10: 00000000ffffe000 R11<4>[ 40.453561] Call Trace: : 3fffffffffffffff R12: 0000000000000004 # [ 30.613666] R13: <4>[ 40.462801] ? __warn+0x80/0x110 ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # <4>[ 40.472908] ? refcount_warn_saturate+0xba/0x110 [ 30.621925] FS: 00007f1202cb3580(0000) GS:ffff90a8bad00000(0<4>[ 40.484572] ? report_bug+0x9e/0xc0 000) knlGS:0000000000000000 # [ 30.631252] CS: 0010 DS: 0000<4>[ 40.494975] ? handle_bug+0x41/0x90 ES: 0000 CR0: 0000000080050033 # [ 30.637959] CR2: ffffac7e0<4>[ 40.505377] ? exc_invalid_op+0x14/0x70 0256fd6 CR3: 000000010379c001 CR4: 00000000003706e0 # EXEC_VMAL<4>[ 40.516164] ? asm_exc_invalid_op+0x12/0x20 LOC: saw 'call trace:': ok ok 33 selftests: lkdtm: EXEC_VMALLOC<4>[ 40.527368] ? refcount_warn_saturate+0xba/0x110 .sh # selftests: lkdtm: EXEC_RODATA.sh # Killed # [ 30.7270<4>[ 40.539029] __refcount_sub_and_test.constprop.0+0x3c/0x50 17] lkdtm: Performing direct entry EXEC_RODATA # [ 30.739314]<4>[ 40.551663] lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE+0x3e/0x78 lkdtm: attempting ok execution at ffffffff87d7be80 # [ 30.75<4>[ 40.564407] direct_entry.cold+0x2c/0x38 2365] lkdtm: attempting bad execution at ffffffff88ef8800 # [ <4>[ 40.575297] full_proxy_write+0x53/0x80 30.765481] kernel tried to execute NX-protected page - exploit <4>[ 40.586087] vfs_write+0xe7/0x3b0 <4>[ 40.596293] ksys_write+0x68/0xf0 attempt? (uid: 0) # [ 30.780303] BUG: unable to handle page f<4>[ 40.600288] do_syscall_64+0x30/0x40 <4>[ 40.610779] entry_SYSCALL_64_after_hwframe+0x62/0xc7 ault for address: ffffffff88ef8800 # [ 30.788271] #PF: superv<4>[ 40.616738] RIP: 0033:0x7fc2313d6473 isor instruction fetch in kernel mode # [ 30.794878] #PF: err<4>[ 40.627231] 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>[ 40.654726] RSP: 002b:00007fff063358e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 or_code(0x0011) - permissions violation # [ 30.801411] PGD 26<4>[ 40.663479] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007fc2313d6473 <4>[ 40.677955] RDX: 000000000000001f RSI: 00007fc2312ca000 RDI: 0000000000000001 c29067 P4D 26c29067 PUD 26c2a063 PMD 80000000264000e1 # [ 30<4>[ 40.686219] RBP: 00007fc2312ca000 R08: 00007fc2312c9010 R09: 0000000000000000 <4>[ 40.700693] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 .809193] Oops: 0011 [#9] SMP PTI # [ 30.813376] CPU: 0 PID: 1<4>[ 40.708958] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 722 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [<4>[ 40.723435] irq event stamp: 0 <4>[ 40.733373] hardirqs last enabled at (0): [<0000000000000000>] 0x0 30.822354] Hardware name: Google Rammus/Rammus, BIOS 09/04/2<4>[ 40.740668] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 40.756310] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 020 # [ 30.829456] RIP: 0010:lkdtm_rodata_do_nothing+0x0/0x10<4>[ 40.765741] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 40.779244] ---[ end trace 4d2843ad41e5ef06 ]--- # [ 30.835487] Code: ff ff bb 0b 46 88 ff ff ff ff b2 28 38 <6>[ 40.784692] lkdtm: Negative detected: saturated 89 ff ff ff ff 01 f3 45 88 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 # [ 30.856759] RSP: 0018:ffffac7e0240fe48 EFLAGS: 00010246 # [ 30.862882] RAX: 0000000000000033 RBX: 0000000000000000 RCX: 0000000000000000 # [ 30.871142] RDX: 0000000000000000 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 # [ 30.879407] RBP: ffffffff88ef8800 R08: 0000000000000000 R09: 0000000000000000 # [ 30.887666] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000c # [ 30.895925] R13: ffffac7e0240ff10 R14: ffffac7e0240ff10 R15: ffff90a842fad000 # [ 30.904184] FS: 00007fe80db11580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 30.913512] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 30.920216] CR2: ffffffff88ef8800 CR3: 00000001036ac005 CR4: 00000000003706f0 # [ 30.928476] Call Trace: # [ 30.931495] ? __die_body.cold+0x1a/0x1f # [ 30.936169] ? no_context+0x177/0x380 # [ 30.940553] ? exc_page_fault+0xd7/0x170 # [ 30.945224] ? asm_exc_page_fault+0x1e/0x30 # [ 30.950188] ? execute_location+0x45/0x56 # [ 30.954959] ? direct_entry.cold+0x2c/0x38 # [ 30.959823] ? full_proxy_write+0x53/0x80 # [ 30.964595] ? vfs_write+0xe7/0x3b0 # [ 30.968777] ? ksys_write+0x68/0xf0 # [ 30.972<6>[ 40.922950] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_NEGATIVE 951] ? do_syscall_64+0x30/0x40 # [ 30.977415] ? entry_SYSCA<6>[ 40.934956] lkdtm: attempting bad refcount_sub_and_test() below zero LL_64_after_hwframe+0x62/0xc7 # [ 30.983541] Modules linked i<4>[ 40.948588] ------------[ cut here ]------------ <4>[ 40.960220] refcount_t: underflow; use-after-free. n: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sens<4>[ 40.965895] WARNING: CPU: 1 PID: 2255 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 ors_core industrialio_triggered_buffer kfifo_buf industrialio uv<4>[ 40.981797] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table cvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec<4>[ 41.040757] CPU: 1 PID: 2255 Comm: cat Tainted: G D W 5.10.202-cip41 #1 _sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec<4>[ 41.055914] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 _debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar sn<4>[ 41.069230] RIP: 0010:refcount_warn_saturate+0xba/0x110 <4>[ 41.081572] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 d_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress vi<4>[ 41.102853] RSP: 0018:ffffac7e02c77e40 EFLAGS: 00010286 deobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cr<4>[ 41.115190] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 0000000000000000 <4>[ 41.129669] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 os_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [<4>[ 41.137933] RBP: ffffffff893823a8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 41.152409] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f 31.036303] CR2: ffffffff88ef8800 # [ 31.040290] ---[ end t<4>[ 41.160676] R13: ffffac7e02c77f10 R14: ffffac7e02c77f10 R15: ffff90a842670000 race 4d2843ad41e5eef8 ]--- # [ 31.045736] RIP: 0010:lkdtm_BUG<4>[ 41.175151] FS: 00007f8e3cd87580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 41.190699] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 +0x5/0x10 # [ 31.050404] Code: 89 ff e8 4e d8 79 ff 48 c7 c0 <4>[ 41.197424] CR2: 00007f8e3cb91000 CR3: 000000010363c005 CR4: 00000000003706e0 <4>[ 41.211899] Call Trace: ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc cc 48 c7 c0 f<4>[ 41.214930] ? __warn+0x80/0x110 4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 <4>[ 41.225035] ? refcount_warn_saturate+0xba/0x110 00 0f 1f 44 00 00 83 05 00 62 0b 03 # [ 31.071674] RSP: 0018:<4>[ 41.236698] ? report_bug+0x9e/0xc0 ffffac7e0134fe60 EFLAGS: 00010282 # [ 31.077799] RAX: fffffff<4>[ 41.247102] ? handle_bug+0x41/0x90 f87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 31.<4>[ 41.257531] ? exc_invalid_op+0x14/0x70 086048] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: fffffff<4>[ 41.268295] ? asm_exc_invalid_op+0x12/0x20 f88ef8370 # [ 31.094307] RBP: ffffffff893e8808 R08: 000000000<4>[ 41.279473] ? refcount_warn_saturate+0xba/0x110 0000001 R09: 0000000000000001 # [ 31.102567] R10: 00000000fff<4>[ 41.291135] __refcount_sub_and_test.constprop.0+0x3c/0x50 fe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 31.1108<4>[ 41.303771] lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE+0x3e/0x7b 26] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436<4>[ 41.316502] direct_entry.cold+0x2c/0x38 f0000 # [ 31.119085] FS: 00007fe80db11580(0000) GS:ffff90a8b<4>[ 41.327393] full_proxy_write+0x53/0x80 ac00000(0000) knlGS:0000000000000000 # [ 31.128403] CS: 0010<4>[ 41.338181] vfs_write+0xe7/0x3b0 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.135108] CR2: <4>[ 41.348401] ksys_write+0x68/0xf0 ffffffff88ef8800 CR3: 00000001036ac005 CR4: 00000000003706f0 # <4>[ 41.358616] do_syscall_64+0x30/0x40 [ 31.143367] BUG: sleeping function called from invalid contex<4>[ 41.369113] entry_SYSCALL_64_after_hwframe+0x62/0xc7 t at include/linux/percpu-rwsem.h:49 # [ 31.153569] in_atomic<4>[ 41.381262] RIP: 0033:0x7f8e3cc9d473 (): 0, irqs_disabled(): 1, non_block: 0, pid: 1722, name: cat #<4>[ 41.391759] 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 [ 31.162315] INFO: lockdep is turned off. # [ 31.166982] i<4>[ 41.419253] RSP: 002b:00007ffc79eede88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 rq event stamp: 0 # [ 31.170679] hardirqs last enabled at (0<4>[ 41.434218] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f8e3cc9d473 ): [<0000000000000000>] 0x0 # [ 31.177968] hardirqs last disa<4>[ 41.448700] RDX: 000000000000001f RSI: 00007f8e3cb91000 RDI: 0000000000000001 bled at (0): [] copy_process+0x65c/0x20e0 # [<4>[ 41.463180] RBP: 00007f8e3cb91000 R08: 00007f8e3cb90010 R09: 0000000000000000 31.187393] softirqs last enabled at (0): [<4>[ 41.477662] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 ] copy_process+0x65c/0x20e0 # [ 31.196817] softirqs last disa<4>[ 41.492144] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 bled at (0): [<0000000000000000>] 0x0 # [ 31.204107] CPU: 0 P<4>[ 41.506627] irq event stamp: 0 ID: 1722 Comm: cat Tainted: G D W 5.10.202-cip41 #1<4>[ 41.516537] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 31.213046] Hardware name: Google Rammus/Rammus, BIOS 09<4>[ 41.530046] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 /04/2020 # [ 31.220140] Call Trace: # [ 31.223164] dump_s<4>[ 41.545691] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 tack+0x77/0x9b # [ 31.227159] ___might_sleep.cold+0xa6/0xb6 <4>[ 41.561362] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 31.232029] exit_signals+0x1c/0x300 # [ 31.236314] do<4>[ 41.574860] ---[ end trace 4d2843ad41e5ef07 ]--- _exit+0xc2/0xab0 # [ 31.240099] ? ksys_write+0x68/0xf0 # [ <6>[ 41.586522] lkdtm: Negative detected: saturated 31.244281] make_task_dead+0x2f/0x30 # [ 31.248649] rewind_stack_and_make_dead+0x17/0x20 # [ 31.254181] RIP: 0033:0x7fe80da27473 # [ 31.258460] 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 # [ 31.279722] RSP: 002b:00007ffd8b7fbce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 31.288469] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fe80da27473 # [ 31.296727] RDX: 000000000000000c RSI: 00007fe80d91b000 RDI: 0000000000000001 # [ 31.304987] RBP: 00007fe80d91b000 R08: 00007fe80d91a010 R09: 0000000000000000 # [ 31.313247] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 31.321506] 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 # [ 31.413502] lkdtm: Performing direct entry EXEC_USERSPACE # [ 31.423139] lkdtm: attempting ok execution at ffffffff87d7be80 # [ 31.429963] lkdtm: attempting bad execution at 00007f212e380000 # [ 31.443066] unable to execute userspace code (SMEP?) (uid: 0) # [ 31.449798] BUG: unable to handle page fault for address: 00007f212e380000 # [ 31.463978] #PF: supervisor instruction fetch in kernel mode # [ 31.470588] #PF: error_code(0x0011) - permissions violation # [ 31.477101] PGD 8000000102dac067 P4D 8000000102dac067 PUD 1058a8067 PMD 104972067 PTE 10868e067 # [ 31.487111] Oops: 0011 [#10] SMP PTI # [ 31.491391] CPU: 2 PID: 1759 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 31.500375] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 31.507471] RIP: 0010:0x7f212e380000 # [ 31.511749] Code: Unable to access opcode bytes at RIP 0x7f212e37ffd6. # [ 31.519329] RSP: 0018:ffffac7e02467e50 EFLAGS: 00010246 # [ 31.525477] RAX: 0000000000000033 RBX: 0000000000000024 RCX: 0000000000000000 # [ 31.533735] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 # [ 31.541995] RBP: 00007f212e380000 R08: 0000000000000000 R09: 0000000000000000 # [ 31.550256] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000000f # [ 31.558515] R13: ffffac7e02467f10 R14: ffffac7e02467f10 R15: ffff90a842cee000 # [ 31.566775] FS: 00007f212e351580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 31.576104] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.582808] CR2: 00007f212e380000 CR3: 0000000105a34004 CR4: 00000000003706e0 # [ 31.591068] Call Trace: # [ 31.594087] ? __die_body.cold+0x1a/0x1f # [ 31.598757] ? no_context+0x177/0x380 # [ 31.603136] ? exc_page_fault+0x53/0x170 # [ 31.607804] ? asm_exc_page_fault+0x1e/0x30 # [ 31.612767] ? lkdtm_EXEC_USERSPACE.cold+0x66/0xae # [ 31.618409] ? direct_entry.cold+0x2c/0x38 # [ 31.623272] ? full_proxy_write+0x53/0x80 # [ 31.628029] ? vfs_write+0xe7/0x3b0 # [ 31.632202] ? ksys_write+0x68/0xf0 # [ 31.636385] ? do_syscall_64+0x30/0x40 # [ 31.640850] ? entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 31.646976] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 31.705964] CR2: 00007f212e380000 # [ 31.709944] ---[ end trace 4d2843ad41e5eef9 ]--- # [ 31.715390] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 31.720078] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 31.741359] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 31.747484] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 31.755744] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 31.764004] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 31.772264] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 31.780522] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 31.788783] FS: 00007f212e351580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 31.798112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 31.804818] CR2: 00007f212e380000 CR3: 0000000105a34004 CR4: 00000000003706e0 # EXEC_USERSPACE: saw 'call trace:': ok ok 35 selftests: lkdtm: EXEC_USERSPACE.sh # selftests: lkdtm: EXEC_NULL.sh # Killed # [ 31.898729] lkdtm: Performing <6>[ 42.089304] lkdtm: Performing direct entry REFCOUNT_INC_ZERO direct entry EXEC_NULL # [ 31.905973] lkdtm: attempting ok ex<6>[ 42.099708] lkdtm: attempting safe refcount_inc_not_zero() from zero ecution at ffffffff87d7be80 # [ 31.912816] lkdtm: attempting <6>[ 42.113316] lkdtm: Good: zero detected bad execution at 0000000000000000 # [ 31.919758] BUG: kernel <6>[ 42.124006] lkdtm: Correctly stayed at zero NULL pointer dereference, address: 0000000000000000 # [ 31.92<6>[ 42.135180] lkdtm: attempting bad refcount_inc() from zero 7854] #PF: supervisor instruction fetch in kernel mode # [ 31<4>[ 42.147814] ------------[ cut here ]------------ .934464] #PF: error_code(0x0010) - not-present page # [ 31.94<4>[ 42.159476] refcount_t: addition on 0; use-after-free. 0489] PGD 0 P4D 0 # [ 31.943605] Oops: 0010 [#11] SMP PTI #<4>[ 42.171750] WARNING: CPU: 1 PID: 2288 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 [ 31.947877] CPU: 2 PID: 1796 Comm: cat Tainted: G D W <4>[ 42.187652] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table 5.10.202-cip41 #1 # [ 31.956816] Hardware name: Google<4>[ 42.246607] CPU: 1 PID: 2288 Comm: cat Tainted: G D W 5.10.202-cip41 #1 Rammus/Rammus, BIOS 09/04/2020 # [ 31.963912] RIP: 0010:0x0<4>[ 42.261766] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 31.967123] Code: Unable to access opcode bytes at RIP 0x<4>[ 42.275083] RIP: 0010:refcount_warn_saturate+0x74/0x110 ffffffffffffffd6. # [ 31.975091] RSP: 0018:ffffac7e0252fe48 E<4>[ 42.287425] Code: 02 01 e8 69 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d 89 c6 05 25 fd 16 02 01 e8 46 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d FLAGS: 00010246 # [ 31.981215] RAX: 0000000000000033 RBX: 000<4>[ 42.314919] RSP: 0018:ffffac7e02d07e48 EFLAGS: 00010286 0000000000000 RCX: 0000000000000000 # [ 31.989474] RDX: 00000<4>[ 42.327258] RAX: 0000000000000000 RBX: 0000000000000033 RCX: 0000000000000000 00000000000 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 # [ 3<4>[ 42.341736] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 1.997735] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000<4>[ 42.356217] RBP: ffffffff89382749 R08: 0000000000000000 R09: 0000000000000000 00000000000 # [ 32.005995] R10: 00000000ffffe000 R11: 3ffffff<4>[ 42.370695] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 fffffffff R12: 000000000000000a # [ 32.014256] R13: ffffac7e0<4>[ 42.385179] R13: ffffac7e02d07f10 R14: ffffac7e02d07f10 R15: ffff90a842f61000 252ff10 R14: ffffac7e0252ff10 R15: ffff90a8429ed000 # [ 32.02<4>[ 42.399657] FS: 00007f04cbd22580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 2516] FS: 00007f51864ec580(0000) GS:ffff90a8bad00000(0000) knlG<4>[ 42.415212] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 S:0000000000000000 # [ 32.031844] CS: 0010 DS: 0000 ES: 0000<4>[ 42.428135] CR2: 00007f04cbb2c000 CR3: 00000001035c2003 CR4: 00000000003706e0 CR0: 0000000080050033 # [ 32.038550] CR2: ffffffffffffffd6 C<4>[ 42.442611] Call Trace: R3: 0000000102fd0004 CR4: 00000000003706e0 # [ 32.046809] Cal<4>[ 42.451852] ? __warn+0x80/0x110 l Trace: # [ 32.049829] ? __die_body.cold+0x1a/0x1f # [ 3<4>[ 42.461958] ? refcount_warn_saturate+0x74/0x110 2.054498] ? no_context+0x177/0x380 # [ 32.058875] ? exc_pag<4>[ 42.473623] ? report_bug+0x9e/0xc0 e_fault+0x53/0x170 # [ 32.063544] ? asm_exc_page_fault+0x1e/<4>[ 42.484026] ? handle_bug+0x41/0x90 0x30 # [ 32.068507] execute_location+0x45/0x56 # [ 32.073<4>[ 42.494425] ? exc_invalid_op+0x14/0x70 077] direct_entry.cold+0x2c/0x38 # [ 32.077747] full_proxy_<4>[ 42.505215] ? asm_exc_invalid_op+0x12/0x20 write+0x53/0x80 # [ 32.082320] vfs_write+0xe7/0x3b0 # [ 3<4>[ 42.516417] ? refcount_warn_saturate+0x74/0x110 2.086308] ksys_write+0x68/0xf0 # [ 32.090297] do_syscall_64<4>[ 42.528075] ? refcount_warn_saturate+0x74/0x110 +0x30/0x40 # [ 32.094577] entry_SYSCALL_64_after_hwframe+0x6<4>[ 42.539739] lkdtm_REFCOUNT_INC_ZERO+0x99/0xc1 2/0xc7 # [ 32.100497] RIP: 0033:0x7f5186402473 # [ 32.1047<4>[ 42.551207] direct_entry.cold+0x2c/0x38 77] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff <4>[ 42.562098] full_proxy_write+0x53/0x80 eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 0<4>[ 42.572887] vfs_write+0xe7/0x3b0 0 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 <4>[ 42.583094] ksys_write+0x68/0xf0 89 54 24 18 # [ 32.126048] RSP: 002b:00007ffc5fcd2248 EFLAGS:<4>[ 42.593302] do_syscall_64+0x30/0x40 00000246 ORIG_RAX: 0000000000000001 # [ 32.134787] RAX: ffff<4>[ 42.603800] entry_SYSCALL_64_after_hwframe+0x62/0xc7 ffffffffffda RBX: 000000000000000a RCX: 00007f5186402473 # [ <4>[ 42.615948] RIP: 0033:0x7f04cbc38473 32.143046] RDX: 000000000000000a RSI: 00007f51862f6000 RDI: 0000<4>[ 42.626445] 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 000000000001 # [ 32.151307] RBP: 00007f51862f6000 R08: 00007f<4>[ 42.653935] RSP: 002b:00007ffe0dbed2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 51862f5010 R09: 0000000000000000 # [ 32.159566] R10: ffffffff<4>[ 42.668899] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f04cbc38473 fffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 32.1<4>[ 42.683380] RDX: 0000000000000012 RSI: 00007f04cbb2c000 RDI: 0000000000000001 67825] R13: 0000000000000001 R14: 0000000000020000 R15: 00000000<4>[ 42.697858] RBP: 00007f04cbb2c000 R08: 00007f04cbb2b010 R09: 0000000000000000 <4>[ 42.712356] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 00020000 # [ 32.176090] Modules linked in: fuse ip_tables cro<4>[ 42.720625] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 s_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio<4>[ 42.735106] irq event stamp: 0 _triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219<4>[ 42.745017] hardirqs last enabled at (0): [<0000000000000000>] 0x0 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2<4>[ 42.758527] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sens<4>[ 42.774174] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 orhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_p<4>[ 42.789819] softirqs last disabled at (0): [<0000000000000000>] 0x0 kg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_u<4>[ 42.803332] ---[ end trace 4d2843ad41e5ef08 ]--- sbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight <6>[ 42.814995] lkdtm: Zero detected: saturated i2c_hid chromeos_pstore coreboot_table # [ 32.235076] CR2: 0000000000000000 # [ 32.239064] ---[ end trace 4d2843ad41e5eefa ]--- # [ 32.244503] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 32.249170] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 32.270439] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 32.276562] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 32.284820] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 32.293080] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 32.301361] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 32.309621] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 32.317880] FS: 00007f51864ec580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 32.327207] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 32.333913] CR2: ffffffffffffffd6 CR3: 0000000102fd0004 CR4: 00000000003706e0 # [ 32.342173] BUG: s<6>[ 42.934104] lkdtm: Performing direct entry REFCOUNT_ADD_ZERO leeping function called from invalid context at include/linux/pe<6>[ 42.944660] lkdtm: attempting safe refcount_add_not_zero() from zero rcpu-rwsem.h:49 # [ 32.352375] in_atomic(): 0, irqs_disabled(<6>[ 42.958269] lkdtm: Good: zero detected ): 1, non_block: 0, pid: 1796, name: cat # [ 32.361121] INFO:<6>[ 42.968962] lkdtm: Correctly stayed at zero <6>[ 42.980138] lkdtm: attempting bad refcount_add() from zero lockdep is turned off. # [ 32.365787] irq event stamp: 0 # <4>[ 42.986557] ------------[ cut here ]------------ <4>[ 42.998217] refcount_t: addition on 0; use-after-free. [ 32.369483] hardirqs last enabled at (0): [<0000000000000000<4>[ 43.004288] WARNING: CPU: 1 PID: 2321 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 >] 0x0 # [ 32.376773] hardirqs last disabled at (0): [[ 43.020183] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 43.079140] CPU: 1 PID: 2321 Comm: cat Tainted: G D W 5.10.202-cip41 #1 ff872fd6cc>] copy_process+0x65c/0x20e0 # [ 32.386200] softirq<4>[ 43.088086] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 s last enabled at (0): [] copy_process+0x65c/<4>[ 43.101412] RIP: 0010:refcount_warn_saturate+0x74/0x110 <4>[ 43.113755] Code: 02 01 e8 69 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d 89 c6 05 25 fd 16 02 01 e8 46 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 0x20e0 # [ 32.395629] softirqs last disabled at (0): [<000000<4>[ 43.135034] RSP: 0018:ffffac7e02d7fe48 EFLAGS: 00010286 <4>[ 43.147371] RAX: 0000000000000000 RBX: 0000000000000034 RCX: 0000000000000000 0000000000>] 0x0 # [ 32.409132] CPU: 2 PID: 1796 Comm: cat Ta<4>[ 43.155637] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 <4>[ 43.170110] RBP: ffffffff8938275b R08: 0000000000000000 R09: 0000000000000000 inted: G D W 5.10.202-cip41 #1 # [ 32.418074] Ha<4>[ 43.178378] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 <4>[ 43.192857] R13: ffffac7e02d7ff10 R14: ffffac7e02d7ff10 R15: ffff90a845889000 rdware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 32.42<4>[ 43.201122] FS: 00007f4795a44580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 <4>[ 43.216665] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 5169] Call Trace: # [ 32.428189] dump_stack+0x77/0x9b # [ <4>[ 43.223377] CR2: 00007f479584e000 CR3: 00000001026aa001 CR4: 00000000003706e0 <4>[ 43.237851] Call Trace: 32.432179] ___might_sleep.cold+0xa6/0xb6 # [ 32.437044] ex<4>[ 43.240876] ? __warn+0x80/0x110 it_signals+0x1c/0x300 # [ 32.441325] do_exit+0xc2/0xab0 # [<4>[ 43.250976] ? refcount_warn_saturate+0x74/0x110 <4>[ 43.262640] ? report_bug+0x9e/0xc0 32.445121] ? ksys_write+0x68/0xf0 # [ 32.449305] make_ta<4>[ 43.266854] ? handle_bug+0x41/0x90 <4>[ 43.277247] ? exc_invalid_op+0x14/0x70 sk_dead+0x2f/0x30 # [ 32.453682] rewind_stack_and_make_dead+<4>[ 43.281822] ? asm_exc_invalid_op+0x12/0x20 0x17/0x20 # [ 32.459223] RIP: 0033:0x7f5186402473 # [ 32.4<4>[ 43.292998] ? refcount_warn_saturate+0x74/0x110 <4>[ 43.304660] ? refcount_warn_saturate+0x74/0x110 63502] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff <4>[ 43.310112] lkdtm_REFCOUNT_ADD_ZERO+0x99/0xc1 <4>[ 43.321574] direct_entry.cold+0x2c/0x38 ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 0<4>[ 43.326249] full_proxy_write+0x53/0x80 0 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 <4>[ 43.337033] vfs_write+0xe7/0x3b0 48 89 54 24 18 # [ 32.484766] RSP: 002b:00007ffc5fcd2248 EFLA<4>[ 43.347241] ksys_write+0x68/0xf0 GS: 00000246 ORIG_RAX: 0000000000000001 # [ 32.493504] RAX: f<4>[ 43.357449] do_syscall_64+0x30/0x40 <4>[ 43.367948] entry_SYSCALL_64_after_hwframe+0x62/0xc7 fffffffffffffda RBX: 000000000000000a RCX: 00007f5186402473 # [<4>[ 43.373884] RIP: 0033:0x7f479595a473 32.501764] RDX: 000000000000000a RSI: 00007f51862f6000 RDI: 0<4>[ 43.384376] 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>[ 43.411869] RSP: 002b:00007ffde92c8b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 000000000000001 # [ 32.510025] RBP: 00007f51862f6000 R08: 000<4>[ 43.420620] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f479595a473 <4>[ 43.435094] RDX: 0000000000000012 RSI: 00007f479584e000 RDI: 0000000000000001 07f51862f5010 R09: 0000000000000000 # [ 32.518286] R10: fffff<4>[ 43.443361] RBP: 00007f479584e000 R08: 00007f479584d010 R09: 0000000000000000 <4>[ 43.457836] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 ffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 3<4>[ 43.466103] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 2.526547] R13: 0000000000000001 R14: 0000000000020000 R15: 00000<4>[ 43.480580] irq event stamp: 0 <4>[ 43.490492] hardirqs last enabled at (0): [<0000000000000000>] 0x0 00000020000 # EXEC_NULL: saw 'call trace:': ok ok 36 selftests<4>[ 43.497788] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 : lkdtm: EXEC_NULL.sh # selftests: lkdtm: ACCESS_USERSPACE.sh <4>[ 43.513428] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 43.529075] softirqs last disabled at (0): [<0000000000000000>] 0x0 # Killed # [ 32.628219] lkdtm: Performing direct entry ACCESS<4>[ 43.536370] ---[ end trace 4d2843ad41e5ef09 ]--- <6>[ 43.548027] lkdtm: Zero detected: saturated _USERSPACE # [ 32.640832] lkdtm: attempting bad read at 00007ff678432000 # [ 32.653467] BUG: unable to handle page fault for address: 00007ff678432000 # [ 32.667629] #PF: supervisor read access in kernel mode # [ 32.673657] #PF: error_code(0x0001) - permissions violation # [ 32.680169] PGD 80000001030ab067 P4D 80000001030ab067 PUD 1031ec067 PMD 106dc2067 PTE 107bd1067 # [ 32.690183] Oops: 0001 [#12] SMP PTI # [ 32.700679] CPU: 1 PID: 1832 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 32.709617] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 32.716714] RIP: 0010:lkdtm_ACCESS_USERSPACE.cold+0x41/0xa3 # [ 32.723230] Code: 00 00 00 75 64 48 83 c4 10 5d c3 cc cc cc cc 48 89 ee 48 c7 c7 d0 35 38 89 e8 37 d8 fb ff 48 c7 c7 f8 35 38 89 b8 de c0 de c0 <48> 03 45 00 48 89 04 24 e8 1e d8 fb ff 48 89 ee 48 c7 c7 20 36 38 # [ 32.750718] RSP: 0018:ffffac7e025dfe48 EFLAGS: 00010246 # [ 32.756842] RAX: 00000000c0dec0de RBX: 0000000000000026 RCX: 0000000000000000 # [ 32.765103] RDX: 0000000000000000 RSI: ffff90a8bac9bf50 RDI: ffffffff893835f8 # [ 32.773364] RBP: 00007ff678432000 R08: 0000000000000000 R09: 0000000000000000 # [ 32.781624] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000011 # [ 32.789884] R13: ffffac7e025dff10 R14: ffffac7e025dff10 R15: ffff90a8432ec000 # [ 32.798146] FS: 00007ff678403580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 32.807476] C<6>[ 43.691934] lkdtm: Performing direct entry REFCOUNT_INC_SATURATED S: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 32.81418<6>[ 43.703434] lkdtm: attempting bad refcount_inc() from saturated 4] CR2: 00007ff678432000 CR3: 00000001036e0001 CR4: 000000000037<4>[ 43.716555] ------------[ cut here ]------------ <4>[ 43.728215] refcount_t: saturated; leaking memory. 06e0 # [ 32.822444] Call Trace: # [ 32.825465] ? __die_bo<4>[ 43.733888] WARNING: CPU: 1 PID: 2357 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 dy.cold+0x1a/0x1f # [ 32.836363] ? no_context+0x177/0x380 #<4>[ 43.749788] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table [ 32.840744] ? exc_page_fault+0x53/0x170 # [ 32.851625] <4>[ 43.808751] CPU: 1 PID: 2357 Comm: cat Tainted: G D W 5.10.202-cip41 #1 ? asm_exc_page_fault+0x1e/0x30 # [ 32.856587] ? lkdtm_ACCESS<4>[ 43.823913] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 _USERSPACE.cold+0x41/0xa3 # [ 32.862423] ? lkdtm_ACCESS_USER<4>[ 43.837228] RIP: 0010:refcount_warn_saturate+0x51/0x110 <4>[ 43.849572] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d SPACE.cold+0x35/0xa3 # [ 32.874470] direct_entry.cold+0x2c/0<4>[ 43.870874] RSP: 0018:ffffac7e02dffe48 EFLAGS: 00010286 x38 # [ 32.879139] full_proxy_write+0x53/0x80 # [ 32.8837<4>[ 43.883192] RAX: 0000000000000000 RBX: 0000000000000035 RCX: 0000000000000000 <4>[ 43.897666] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 11] vfs_write+0xe7/0x3b0 # [ 32.893912] ksys_write+0x68/0xf<4>[ 43.905933] RBP: ffffffff8938276d R08: 0000000000000000 R09: 0000000000000000 <4>[ 43.920408] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 0 # [ 32.897894] do_syscall_64+0x30/0x40 # [ 32.902173] <4>[ 43.928672] R13: ffffac7e02dfff10 R14: ffffac7e02dfff10 R15: ffff90a843f73000 <4>[ 43.943147] FS: 00007f3caf768580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 32.908104] RIP: <4>[ 43.952481] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 43.965407] CR2: 00007f3caf572000 CR3: 0000000102fba003 CR4: 00000000003706e0 0033:0x7ff678319473 # [ 32.912384] Code: 8b 15 21 2a 0e 00 f7<4>[ 43.973674] Call Trace: d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 <4>[ 43.982908] ? __warn+0x80/0x110 <4>[ 43.993017] ? refcount_warn_saturate+0x51/0x110 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77<4>[ 43.998467] ? report_bug+0x9e/0xc0 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 32.933659] <4>[ 44.008864] ? handle_bug+0x41/0x90 <4>[ 44.019265] ? exc_invalid_op+0x14/0x70 RSP: 002b:00007ffde8b3e138 EFLAGS: 00000246 ORIG_RAX: 0000000000<4>[ 44.023842] ? asm_exc_invalid_op+0x12/0x20 000001 # [ 32.942412] RAX: ffffffffffffffda RBX: 000000000000<4>[ 44.035016] ? refcount_warn_saturate+0x51/0x110 <4>[ 44.046678] ? refcount_warn_saturate+0x51/0x110 0011 RCX: 00007ff678319473 # [ 32.950673] RDX: 00000000000000<4>[ 44.052130] lkdtm_REFCOUNT_INC_SATURATED+0x3c/0x64 <4>[ 44.064078] direct_entry.cold+0x2c/0x38 11 RSI: 00007ff67820d000 RDI: 0000000000000001 # [ 32.958933]<4>[ 44.068752] full_proxy_write+0x53/0x80 RBP: 00007ff67820d000 R08: 00007ff67820c010 R09: 00000000000000<4>[ 44.079536] vfs_write+0xe7/0x3b0 00 # [ 32.967194] R10: fffffffffffffbc5 R11: 0000000000000246<4>[ 44.089746] ksys_write+0x68/0xf0 R12: 0000000000000001 # [ 32.975455] R13: 0000000000000001 R<4>[ 44.099952] do_syscall_64+0x30/0x40 <4>[ 44.110452] entry_SYSCALL_64_after_hwframe+0x62/0xc7 14: 0000000000020000 R15: 0000000000020000 # [ 32.983718] Mod<4>[ 44.116404] RIP: 0033:0x7f3caf67e473 <4>[ 44.126897] 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 ules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors<4>[ 44.148177] RSP: 002b:00007ffcc39688e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 44.163135] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f3caf67e473 cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf in<4>[ 44.171405] RDX: 0000000000000017 RSI: 00007f3caf572000 RDI: 0000000000000001 <4>[ 44.185870] RBP: 00007f3caf572000 R08: 00007f3caf571010 R09: 0000000000000000 dustrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_m<4>[ 44.194137] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 44.208610] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 emops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_ch<4>[ 44.216879] irq event stamp: 0 <4>[ 44.226784] hardirqs last enabled at (0): [<0000000000000000>] 0x0 arger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_e<4>[ 44.234079] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 44.249717] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 c_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev sn<4>[ 44.259147] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 44.272648] ---[ end trace 4d2843ad41e5ef0a ]--- <6>[ 44.278096] lkdtm: Saturation detected: still saturated d_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 33.042677] CR2: 00007ff678432000 # [ 33.046664] ---[ end trace 4d2843ad41e5eefb ]--- # [ 33.052111] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 33.056778] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 33.078052] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 33.084176] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 33.092437] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 33.100699] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 33.108958] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 33.117217] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 33.125478] FS: 00007ff678403580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 33.1348<6>[ 44.388386] lkdtm: Performing direct entry REFCOUNT_DEC_SATURATED 08] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.<6>[ 44.396977] lkdtm: attempting bad refcount_dec() from saturated 141515] CR2: 00007ff678432000 CR3: 00000001036e0001 CR4: 0000000<4>[ 44.410103] ------------[ cut here ]------------ 0003706e0 # ACCESS_USERSPACE: saw 'call trace:': ok ok 37 self<4>[ 44.421763] refcount_t: decrement hit 0; leaking memory. tests: lkdtm: ACCESS_USERSPACE.sh # selftests: lkdtm: ACCESS_NU<4>[ 44.434221] WARNING: CPU: 1 PID: 2393 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 LL.sh # Killed # [ 33.247414] lkdtm: Performing direct entry<4>[ 44.450145] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table ACCESS_NULL # [ 33.255267] lkdtm: attempting bad read at 000<4>[ 44.509105] CPU: 1 PID: 2393 Comm: cat Tainted: G D W 5.10.202-cip41 #1 0000000000000 # [ 33.267928] BUG: kernel NULL pointer derefer<4>[ 44.524266] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 ence, address: 0000000000000000 # [ 33.282170] #PF: superviso<4>[ 44.537582] RIP: 0010:refcount_warn_saturate+0xfb/0x110 r read access in kernel mode # [ 33.288196] #PF: error_code(0<4>[ 44.549926] Code: a0 d3 2d 89 c6 05 b5 fc 16 02 01 e8 d9 f2 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 70 d3 2d 89 c6 05 9c fc 16 02 01 e8 bf f2 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b x0000) - not-present page # [ 33.294222] PGD 0 P4D 0 # [ <4>[ 44.577421] RSP: 0018:ffffac7e02e67e48 EFLAGS: 00010286 33.297330] Oops: 0000 [#13] SMP PTI # [ 33.301609] CPU: 0 PID<4>[ 44.589764] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 0000000000000000 : 1870 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 44.604244] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 33.310549] Hardware name: Google Rammus/Rammus, BIOS 09/0<4>[ 44.618721] RBP: ffffffff89382784 R08: 0000000000000000 R09: 0000000000000000 4/2020 # [ 33.317646] RIP: 0010:lkdtm_ACCESS_NULL+0x14/0x53 <4>[ 44.633201] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 33.323192] Code: db d7 fb ff be 00 10 00 00 48 89 ef e8 0a<4>[ 44.647682] R13: ffffac7e02e67f10 R14: ffffac7e02e67f10 R15: ffff90a845b00000 6d 0a ff e9 69 ff ff ff 0f 1f 44 00 00 53 31 f6 48 c7 c7 d0 35 <4>[ 44.662164] FS: 00007fab42991580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 38 89 e8 b5 d7 fb ff <48> 8b 1c 25 00 00 00 00 b8 de c0 de c0 48<4>[ 44.677715] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 44.690641] CR2: 00007fab4279b000 CR3: 0000000103456002 CR4: 00000000003706e0 c7 c7 f8 35 38 89 48 01 # [ 33.344462] RSP: 0018:ffffac7e026<4>[ 44.698907] Call Trace: 7fe58 EFLAGS: 00010246 # [ 33.350587] RAX: 000000000000002e R<4>[ 44.708171] ? __warn+0x80/0x110 BX: 0000000000000027 RCX: 0000000000000000 # [ 33.358846] RDX<4>[ 44.718293] ? refcount_warn_saturate+0xfb/0x110 : 0000000000000000 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 <4>[ 44.729936] ? report_bug+0x9e/0xc0 # [ 33.367106] RBP: ffffffff893826c1 R08: 0000000000000000 R09<4>[ 44.740365] ? handle_bug+0x41/0x90 <4>[ 44.750764] ? exc_invalid_op+0x14/0x70 : 0000000000000000 # [ 33.375366] R10: 00000000ffffe000 R11: <4>[ 44.755363] ? asm_exc_invalid_op+0x12/0x20 3fffffffffffffff R12: 000000000000000c # [ 33.383626] R13: ff<4>[ 44.766534] ? refcount_warn_saturate+0xfb/0x110 <4>[ 44.778197] ? refcount_warn_saturate+0xfb/0x110 ffac7e0267ff10 R14: ffffac7e0267ff10 R15: ffff90a842f98000 # [ <4>[ 44.783647] lkdtm_REFCOUNT_DEC_SATURATED+0x37/0x5f 33.391887] FS: 00007f691d34f580(0000) GS:ffff90a8bac00000(000<4>[ 44.795596] direct_entry.cold+0x2c/0x38 0) knlGS:0000000000000000 # [ 33.401214] CS: 0010 DS: 0000 E<4>[ 44.806484] full_proxy_write+0x53/0x80 S: 0000 CR0: 0000000080050033 # [ 33.407921] CR2: 00000000000<4>[ 44.817275] vfs_write+0xe7/0x3b0 <4>[ 44.827481] ksys_write+0x68/0xf0 00000 CR3: 00000001036dc001 CR4: 00000000003706f0 # [ 33.4161<4>[ 44.831498] do_syscall_64+0x30/0x40 <4>[ 44.841988] entry_SYSCALL_64_after_hwframe+0x62/0xc7 80] Call Trace: # [ 33.419200] ? __die_body.cold+0x1a/0x1f <4>[ 44.847925] RIP: 0033:0x7fab428a7473 <4>[ 44.858418] 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 # [ 33.423875] ? no_context+0x177/0x380 # [ 33.428259] ? <4>[ 44.879698] RSP: 002b:00007ffe7c9246c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 44.894657] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fab428a7473 exc_page_fault+0x53/0x170 # [ 33.432934] ? asm_exc_page_faul<4>[ 44.902922] RDX: 0000000000000017 RSI: 00007fab4279b000 RDI: 0000000000000001 t+0x1e/0x30 # [ 33.437897] ? lkdtm_ACCESS_NULL+0x14/0x53 # <4>[ 44.917410] RBP: 00007fab4279b000 R08: 00007fab4279a010 R09: 0000000000000000 <4>[ 44.931888] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 [ 33.442764] ? lkdtm_ACCESS_NULL+0x14/0x53 # [ 33.447626] <4>[ 44.940154] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 direct_entry.cold+0x2c/0x38 # [ 33.452296] full_proxy_write<4>[ 44.954654] irq event stamp: 0 <4>[ 44.964549] hardirqs last enabled at (0): [<0000000000000000>] 0x0 +0x53/0x80 # [ 33.456873] vfs_write+0xe7/0x3b0 # [ 33.460<4>[ 44.971844] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 44.987484] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 867] ksys_write+0x68/0xf0 # [ 33.464859] do_syscall_64+0x30<4>[ 44.996914] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 45.010417] ---[ end trace 4d2843ad41e5ef0b ]--- /0x40 # [ 33.469144] entry_SYSCALL_64_after_hwframe+0x62/0xc<6>[ 45.015867] lkdtm: Saturation detected: still saturated 7 # [ 33.475077] RIP: 0033:0x7f691d265473 # [ 33.479356] 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 # [ 33.500619] RSP: 002b:00007ffe32580018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 33.509355] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f691d265473 # [ 33.517613] RDX: 000000000000000c RSI: 00007f691d159000 RDI: 0000000000000001 # [ 33.525872] RBP: 00007f691d159000 R08: 00007f691d158010 R09: 0000000000000000 # [ 33.534132] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 33.542391] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 33.550656] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 33.603422] CR2: 0000000000000000 # [ 33.607409] ---[ end trace 4d2843ad41e5eefc ]--- # [ 33.612846] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 33.617513] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 33.638785] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 33.644910] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 33.653160] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 33.661420] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 33.669680] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 33.677939] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 33.686199] FS: 00007f691d34f580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 33.695525] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 33.702231] CR2: 0000000000000000 CR3: 00000001036dc001 CR4: 00000000003706f0 # [ 33.710491] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49 # [ 33.720693] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1870, name: cat # [ 33.729437] INFO: lockdep is turned off. # [ 33.734105] irq event stamp: 0 # [ 33.737793] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 33.745083] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 33.754501] softirqs las<6>[ 45.309150] lkdtm: Performing direct entry REFCOUNT_ADD_SATURATED t enabled at (0): [] copy_process+0x65c/0x20e<6>[ 45.319019] lkdtm: attempting bad refcount_dec() from saturated 0 # [ 33.763918] softirqs last disabled at (0): [<00000000000<4>[ 45.332136] ------------[ cut here ]------------ 00000>] 0x0 # [ 33.771199] CPU: 0 PID: 1870 Comm: cat Tainted<4>[ 45.343797] refcount_t: saturated; leaking memory. : G D W 5.10.202-cip41 #1 # [ 33.780138] Hardwar<4>[ 45.355669] WARNING: CPU: 1 PID: 2429 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 e name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 33.787233]<4>[ 45.371592] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table Call Trace: # [ 33.790253] dump_stack+0x77/0x9b # [ 33.7<4>[ 45.430564] CPU: 1 PID: 2429 Comm: cat Tainted: G D W 5.10.202-cip41 #1 94248] ___might_sleep.cold+0xa6/0xb6 # [ 33.799117] exit_si<4>[ 45.445719] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 gnals+0x1c/0x300 # [ 33.803403] do_exit+0xc2/0xab0 # [ 33<4>[ 45.459031] RIP: 0010:refcount_warn_saturate+0x51/0x110 .807196] ? ksys_write+0x68/0xf0 # [ 33.811372] make_task_de<4>[ 45.471375] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d ad+0x2f/0x30 # [ 33.815750] rewind_stack_and_make_dead+0x17/<4>[ 45.498868] RSP: 0018:ffffac7e02f17e48 EFLAGS: 00010286 0x20 # [ 33.821293] RIP: 0033:0x7f691d265473 # [ 33.825572<4>[ 45.511212] RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000 ] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb<4>[ 45.525692] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 <4>[ 45.540173] RBP: ffffffff8938279b R08: 0000000000000000 R09: 0000000000000000 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89<4>[ 45.554651] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 54 24 18 # [ 33.846835] RSP: 002b:00007ffe32580018 EFLAGS: 0<4>[ 45.569132] R13: ffffac7e02f17f10 R14: ffffac7e02f17f10 R15: ffff90a842995000 0000246 ORIG_RAX: 0000000000000001 # [ 33.855572] RAX: ffffff<4>[ 45.583612] FS: 00007fef6ecfe580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 ffffffffda RBX: 000000000000000c RCX: 00007f691d265473 # [ 33<4>[ 45.599162] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 .863832] RDX: 000000000000000c RSI: 00007f691d159000 RDI: 000000<4>[ 45.612090] CR2: 00007fef6eb08000 CR3: 00000001035ec006 CR4: 00000000003706e0 0000000001 # [ 33.872091] RBP: 00007f691d159000 R08: 00007f69<4>[ 45.626571] Call Trace: 1d158010 R09: 0000000000000000 # [ 33.880352] R10: ffffffffff<4>[ 45.635812] ? __warn+0x80/0x110 fffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 33.888<4>[ 45.645919] ? refcount_warn_saturate+0x51/0x110 603] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000<4>[ 45.657585] ? report_bug+0x9e/0xc0 020000 # ACCESS_NULL: saw 'call trace:': ok ok 38 selftests: l<4>[ 45.667989] ? handle_bug+0x41/0x90 kdtm: ACCESS_NULL.sh # selftests: lkdtm: WRITE_RO.sh # Killed <4>[ 45.678389] ? exc_invalid_op+0x14/0x70 # [ 33.993536] lkdtm: Performing direct entry WRITE_RO # [ <4>[ 45.689178] ? asm_exc_invalid_op+0x12/0x20 34.002065] lkdtm: attempting bad rodata write at ffffffff88ef87<4>[ 45.700370] ? refcount_warn_saturate+0x51/0x110 f0 # [ 34.009294] BUG: unable to handle page fault for addres<4>[ 45.712031] ? refcount_warn_saturate+0x51/0x110 s: ffffffff88ef87f0 # [ 34.017289] #PF: supervisor write acce<4>[ 45.723696] lkdtm_REFCOUNT_ADD_SATURATED+0x3c/0x64 ss in kernel mode # [ 34.029625] #PF: error_code(0x0003) - pe<4>[ 45.735651] direct_entry.cold+0x2c/0x38 rmissions violation # [ 34.036137] PGD 26c29067 P4D 26c29067 <4>[ 45.746540] full_proxy_write+0x53/0x80 PUD 26c2a063 PMD 80000000264000e1 # [ 34.043914] Oops: 0003 <4>[ 45.757330] vfs_write+0xe7/0x3b0 [#14] SMP PTI # [ 34.048192] CPU: 3 PID: 1906 Comm: cat Taint<4>[ 45.767535] ksys_write+0x68/0xf0 ed: G D W 5.10.202-cip41 #1 # [ 34.057132] Hardw<4>[ 45.777742] do_syscall_64+0x30/0x40 are name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 34.06422<4>[ 45.788238] entry_SYSCALL_64_after_hwframe+0x62/0xc7 9] RIP: 0010:lkdtm_WRITE_RO+0x2e/0x3a # [ 34.069479] Code: 00<4>[ 45.800388] RIP: 0033:0x7fef6ec14473 48 c7 c7 b0 34 38 89 48 c7 c6 f0 87 ef 88 e8 5f da fb ff 48 8b <4>[ 45.810884] 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 05 a4 91 a9 00 ba 34 12 cd ab 48 c7 c7 e0 34 38 89 48 31 d0 <48><4>[ 45.838377] RSP: 002b:00007ffd4afdff38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 89 05 8e 91 a9 00 e9 3d da fb ff 0f 1f 44 00 00 48 8b 05 dd ac <4>[ 45.853363] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fef6ec14473 # [ 34.090751] RSP: 0018:ffffac7e0270fe60 EFLAGS: 00010202 #<4>[ 45.867843] RDX: 0000000000000017 RSI: 00007fef6eb08000 RDI: 0000000000000001 [ 34.096876] RAX: 000000000198b861 RBX: 0000000000000028 RCX:<4>[ 45.882323] RBP: 00007fef6eb08000 R08: 00007fef6eb07010 R09: 0000000000000000 <4>[ 45.896801] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 0000000000000000 # [ 34.105136] RDX: 00000000abcd1234 RSI: f<4>[ 45.905067] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 fff90a8bad9bf50 RDI: ffffffff893834e0 # [ 34.113410] RBP: fff<4>[ 45.919547] irq event stamp: 0 fffff893826cd R08: 0000000000000000 R09: 0000000000000000 # [ <4>[ 45.929459] hardirqs last enabled at (0): [<0000000000000000>] 0x0 34.121701] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000<4>[ 45.942969] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 0000000000009 # [ 34.129959] R13: ffffac7e0270ff10 R14: ffffa<4>[ 45.958615] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 c7e0270ff10 R15: ffff90a8464da000 # [ 34.138219] FS: 00007f3<4>[ 45.974262] softirqs last disabled at (0): [<0000000000000000>] 0x0 adfa88580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000<4>[ 45.987772] ---[ end trace 4d2843ad41e5ef0c ]--- # [ 34.147547] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005<6>[ 45.999436] lkdtm: Saturation detected: still saturated 0033 # [ 34.154252] CR2: ffffffff88ef87f0 CR3: 00000001058f6005 CR4: 00000000003706e0 # [ 34.162512] Call Trace: # [ 34.165531] ? __die_body.cold+0x1a/0x1f # [ 34.170200] ? no_context+0x177/0x380 # [ 34.174579] ? exc_page_fault+0xd7/0x170 # [ 34.179247] ? asm_exc_page_fault+0x1e/0x30 # [ 34.184208] ? lkdtm_WRITE_RO+0x2e/0x3a # [ 34.188779] direct_entry.cold+0x2c/0x38 # [ 34.193449] full_proxy_write+0x53/0x80 # [ 34.198022] vfs_write+0xe7/0x3b0 # [ 34.202010] ksys_write+0x68/0xf0 # [ 34.205991] do_syscall_64+0x30/0x40 # [ 34.210271] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 34.216202] RIP: 0033:0x7f3adf99e473 # [ 34.220473] 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 # [ 34.241748] RSP: 002b:00007ffe8665c2d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 34.250484] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f3adf99e473 # [ 34.258746] RDX: 00<6>[ 46.116474] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_SATURATED <6>[ 46.125401] lkdtm: attempting bad refcount_inc_not_zero() from saturated <4>[ 46.133190] ------------[ cut here ]------------ <4>[ 46.138651] refcount_t: saturated; leaking memory. <4>[ 46.144314] WARNING: CPU: 2 PID: 2462 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 00000000000009 RSI: 00007f3adf892000 RDI: 0000000000000001 # [ <4>[ 46.154067] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table <4>[ 46.213066] CPU: 2 PID: 2462 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 46.222039] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 46.229138] RIP: 0010:refcount_warn_saturate+0x97/0x110 <4>[ 46.235266] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d <4>[ 46.256542] RSP: 0018:ffffac7e02f7fe38 EFLAGS: 00010282 <4>[ 46.262670] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 <4>[ 46.270932] RDX: ffff90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 <4>[ 46.279195] RBP: ffffffff893823c8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 46.287457] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 <4>[ 46.295720] R13: ffffac7e02f7ff10 R14: ffffac7e02f7ff10 R15: ffff90a840e5b000 <4>[ 46.303983] FS: 00007ffab2d42580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 <4>[ 46.313315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 46.320023] CR2: 00007ffab2b4c000 CR3: 000000010363c006 CR4: 00000000003706e0 <4>[ 46.328288] Call Trace: <4>[ 46.331312] ? __warn+0x80/0x110 <4>[ 46.335233] ? refcount_warn_saturate+0x97/0x110 <4>[ 46.340682] ? report_bug+0x9e/0xc0 <4>[ 46.344871] ? handle_bug+0x41/0x90 <4>[ 46.349081] ? exc_invalid_op+0x14/0x70 <4>[ 46.353655] ? asm_exc_invalid_op+0x12/0x20 <4>[ 46.358619] ? refcount_warn_saturate+0x97/0x110 <4>[ 46.364066] ? refcount_warn_saturate+0x97/0x110 <4>[ 46.369514] __refcount_add_not_zero.constprop.0+0x2a/0x35 <4>[ 46.375932] lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED+0x3e/0x76 <4>[ 46.382544] direct_entry.cold+0x2c/0x38 <4>[ 46.387216] full_proxy_write+0x53/0x80 <4>[ 46.391814] vfs_write+0xe7/0x3b0 34.267006] RBP: 00007f3adf892000 R08: 00007f3adf891010 R09: 00<4>[ 46.395834] ksys_write+0x68/0xf0 <4>[ 46.406039] do_syscall_64+0x30/0x40 00000000000000 # [ 34.275267] R10: fffffffffffffbc5 R11: 0000<4>[ 46.410364] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 46.422512] RIP: 0033:0x7ffab2c58473 <4>[ 46.426794] 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>[ 46.448093] RSP: 002b:00007ffe15ba7b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 000000000246 R12: 0000000000000001 # [ 34.283526] R13: 000000<4>[ 46.456855] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007ffab2c58473 <4>[ 46.471328] RDX: 0000000000000020 RSI: 00007ffab2b4c000 RDI: 0000000000000001 <4>[ 46.479591] RBP: 00007ffab2b4c000 R08: 00007ffab2b4b010 R09: 0000000000000000 <4>[ 46.487853] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 46.496107] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 46.504375] irq event stamp: 0 <4>[ 46.508079] hardirqs last enabled at (0): [<0000000000000000>] 0x0 <4>[ 46.515373] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 46.524803] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 <4>[ 46.534231] softirqs last disabled at (0): [<0000000000000000>] 0x0 <4>[ 46.541524] ---[ end trace 4d2843ad41e5ef0d ]--- <6>[ 46.546971] lkdtm: Saturation detected: still saturated 0000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 34.291789] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 34.350780] CR2: ffffffff88ef87f0 # [ 34.354760] ---[ end trace 4d2843ad41e5eefd ]--- # [ 34.360206] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 34.364873] Code: 89 ff e8 4e d8 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 00 62 0b 03 # [ 34.386146] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 34.392269] RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 0000000000000000 # [ 34.400530] RDX: 0000000000000000 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 34.408790] RBP: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 # [ 34.417049] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 # [ 34.425310] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 34.433570] FS: 00007f3adfa88580(0000) GS:ffff90a8bad80000(0000) knlGS:0000000000000000 # [ 34.442898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 34.449605] CR2: ffffffff88ef87f0 CR3: 00000001058f6005 CR4: 00000000003706e0 # WRITE_RO: saw 'call trace:': ok ok 39 selftests: lkdtm: WRITE_RO.sh # selftests: lkdtm: WRITE_RO_AFTER_INIT.sh # Killed # [ 34.577484] lkdtm: Performing direct entry WRITE_RO_AFTER_INIT # [ 34.589360] lkdtm: attempting bad ro_after_init write at ffffffff8940a350 # [ 34.603462] BUG: unable to handle page fault for address: ffffffff8940a350 # [ 34.617621] #PF: supervisor write access in kernel mode # [ 34.623746] #PF: error_code(0x0003) - permissions violation # [ 34.630259] PGD 26c29067 P4D 26c29067 PUD 26c2a063 PMD 104993063 PTE 8000000026a0a061 # [ 34.639306] Oops: 0003 [#15] SMP PTI # [ 34.643585] CPU: 0 PID: 1942 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 34.652516] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 34.659611] RIP: 0010:lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a # [ 34.665934] Code: 35 38 89 e9 11 da fb ff 48 c7 c7 38 35 38 89 e8 05 da fb ff 48 8b 05 aa ac fa 00 ba 34 12 cd ab 48 c7 c7 e0 34 38 89 48 31 d0 <48> 89 05 94 ac fa 00 e9 e3 d9 fb ff 0f 1f 44 00 00 41 54 48 c7 c7 # [ 34.687207] RSP: 0018:ffffac7e027a7e60 EFLAGS: 00010202 # [ 34.693332] RAX: 00000000fe67479e RBX: 0000000000000029 RCX: 0000000000000000 # [ 34.701593] RDX: 00000000abcd1234 RSI: ffff90a8bac1bf50 RDI: ffffffff893834e0 # [ 34.709852] RBP: ffffffff893826d6 R08: 0000000000000000 R09: 0000000000000000 # [ 34.718112] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000014 # [ 34.726372] R13: ffffac7e027a7f10 R14: ffffac7e027a7f10 R15: ffff90a845ac1000 # [ 34.734624] FS: 00007f3a2e620580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 34.743951] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 34.750658] CR2: ffffffff8940a350 CR3: 0000000102c22005<6>[ 46.891654] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_SATURATED CR4: 00000000003706f0 # [ 34.758918] Call Trace: # [ 34.7<6>[ 46.903167] lkdtm: attempting bad refcount_add_not_zero() from saturated 61939] ? __die_body.cold+0x1a/0x1f # [ 34.766606] ? no_cont<4>[ 46.917163] ------------[ cut here ]------------ ext+0x177/0x380 # [ 34.770990] ? exc_page_fault+0xd7/0x170 <4>[ 46.928828] refcount_t: saturated; leaking memory. # [ 34.775663] ? asm_exc_page_fault+0x1e/0x30 # [ 34.78062<4>[ 46.940728] WARNING: CPU: 0 PID: 2495 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 6] ? lkdtm_WRITE_RO_AFTER_INIT+0x4e/0x5a # [ 34.786261] dir<4>[ 46.956653] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table ect_entry.cold+0x2c/0x38 # [ 34.790932] full_proxy_write+0x5<4>[ 47.015641] CPU: 0 PID: 2495 Comm: cat Tainted: G D W 5.10.202-cip41 #1 3/0x80 # [ 34.795510] vfs_write+0xe7/0x3b0 # [ 34.799503]<4>[ 47.030784] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 ksys_write+0x68/0xf0 # [ 34.803494] do_syscall_64+0x30/0x4<4>[ 47.044139] RIP: 0010:refcount_warn_saturate+0x97/0x110 0 # [ 34.807780] entry_SYSCALL_64_after_hwframe+0x62/0xc7 #<4>[ 47.056469] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d [ 34.813703] RIP: 0033:0x7f3a2e536473 # [ 34.817983] Code:<4>[ 47.083999] RSP: 0018:ffffac7e03007e38 EFLAGS: 00010282 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f <4>[ 47.096369] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 <4>[ 47.110837] RDX: ffff90a8bac2c620 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <<4>[ 47.119142] RBP: ffffffff893823e8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 47.133582] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 <4>[ 47.141879] R13: ffffac7e03007f10 R14: ffffac7e03007f10 R15: ffff90a8453a0000 18 # [ 34.839249] RSP: 002b:00007ffefb013dc8 EFLAGS: 00000246<4>[ 47.156366] FS: 00007fb3090f6580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 ORIG_RAX: 0000000000000001 # [ 34.847995] RAX: fffffffffffff<4>[ 47.171873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 fda RBX: 0000000000000014 RCX: 00007f3a2e536473 # [ 34.856254<4>[ 47.184824] CR2: 00007fb308f00000 CR3: 000000010341c005 CR4: 00000000003706f0 ] RDX: 0000000000000014 RSI: 00007f3a2e42a000 RDI: 0000000000000<4>[ 47.199343] Call Trace: 001 # [ 34.864514] RBP: 00007f3a2e42a000 R08: 00007f3a2e42901<4>[ 47.208566] ? __warn+0x80/0x110 0 R09: 0000000000000000 # [ 34.872773] R10: fffffffffffffbc5 <4>[ 47.218794] ? refcount_warn_saturate+0x97/0x110 R11: 0000000000000246 R12: 0000000000000001 # [ 34.881032] R1<4>[ 47.230488] ? report_bug+0x9e/0xc0 3: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 <4>[ 47.240844] ? handle_bug+0x41/0x90 # [ 34.889297] Modules linked in: fuse ip_tables cros_ec_lid_<4>[ 47.251254] ? exc_invalid_op+0x14/0x70 angle cros_ec_sensors cros_ec_sensors_core industrialio_triggere<4>[ 47.262054] ? asm_exc_invalid_op+0x12/0x20 d_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf<4>[ 47.273269] ? refcount_warn_saturate+0x97/0x110 2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_<4>[ 47.284940] ? refcount_warn_saturate+0x97/0x110 chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cro<4>[ 47.296653] __refcount_add_not_zero.constprop.0+0x2a/0x35 s_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_t<4>[ 47.309265] lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED+0x3e/0x76 hermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_noti<4>[ 47.322127] direct_entry.cold+0x2c/0x38 fy snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid c<4>[ 47.333007] full_proxy_write+0x53/0x80 hromeos_pstore coreboot_table # [ 34.942068] CR2: ffffffff894<4>[ 47.343846] vfs_write+0xe7/0x3b0 0a350 # [ 34.946057] ---[ end trace 4d2843ad41e5eefe ]--- # <4>[ 47.354023] ksys_write+0x68/0xf0 [ 34.951505] RIP: 0010:lkdtm_BUG+0x5/0x10 # [ 34.956173] Co<4>[ 47.364279] do_syscall_64+0x30/0x40 de: 89 ff e8 4e d8 79 ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea <4>[ 47.374751] entry_SYSCALL_64_after_hwframe+0x62/0xc7 ff ff ff c3 cc cc cc cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 0<4>[ 47.386936] RIP: 0033:0x7fb30900c473 0 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 05 00 62 <4>[ 47.397443] 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 0b 03 # [ 34.977435] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010<4>[ 47.424940] RSP: 002b:00007fff37851de8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 282 # [ 34.983559] RAX: ffffffff87d7bab0 RBX: 000000000000000<4>[ 47.439893] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fb30900c473 1 RCX: 0000000000000000 # [ 34.991820] RDX: 0000000000000000 <4>[ 47.454381] RDX: 0000000000000020 RSI: 00007fb308f00000 RDI: 0000000000000001 RSI: ffff90a8bad1bf50 RDI: ffffffff88ef8370 # [ 35.000072] RB<4>[ 47.468842] RBP: 00007fb308f00000 R08: 00007fb308eff010 R09: 0000000000000000 P: ffffffff893e8808 R08: 0000000000000001 R09: 0000000000000001 <4>[ 47.483367] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 35.008329] R10: 00000000ffffe000 R11: 3fffffffffffffff R1<4>[ 47.497866] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 2: 0000000000000004 # [ 35.016590] R13: ffffac7e0134ff10 R14:<4>[ 47.512356] irq event stamp: 0 ffffac7e0134ff10 R15: ffff90a8436f0000 # [ 35.024849] FS: 0<4>[ 47.522293] hardirqs last enabled at (0): [<0000000000000000>] 0x0 0007f3a2e620580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000<4>[ 47.535789] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 000000 # [ 35.034177] CS: 0010 DS: 0000 ES: 0000 CR0: 000000<4>[ 47.551475] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 0080050033 # [ 35.040884] CR2: ffffffff8940a350 CR3: 00000001<4>[ 47.567107] softirqs last disabled at (0): [<0000000000000000>] 0x0 02c22005 CR4: 00000000003706f0 # [ 35.049137] BUG: sleeping f<4>[ 47.580660] ---[ end trace 4d2843ad41e5ef0e ]--- unction called from invalid context at include/linux/percpu-rwse<6>[ 47.592317] lkdtm: Saturation detected: still saturated m.h:49 # [ 35.059338] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1942, name: cat # [ 35.068082] INFO: lockdep is turned off. # [ 35.072748] irq event stamp: 0 # [ 35.076443] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 35.083733] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 35.093158] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 35.102583] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 35.109873] CPU: 0 PID: 1942 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 35.118804] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 35.125899] Call Trace: # [ 35.128919] dump_stack+0x77/0x9b # [ 35.132914] ___might_sleep.cold+0xa6/0xb6 # [ 35.137783] exit_signals+0x1c/0x300 # [ 35.142069] do_exit+0xc2/0xab0 # [ 35.145856] ? ksys_write+0x68/0xf0 # [ 35.150040] make_task_dead+0x2f/0x30 # [ 35.154417] rewind_stack_and_make_dead+0x17/0x20 # [ 35.159951] RIP: 0033:0x7f3a2e536473 # [ 35.164222] 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 0<6>[ 47.716851] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_SATURATED 5 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 <6>[ 47.730697] lkdtm: attempting bad refcount_dec_and_test() from saturated 24 18 # [ 35.185484] RSP: 002b:00007ffefb013dc8 EFLAGS: 00000<4>[ 47.744721] ------------[ cut here ]------------ 246 ORIG_RAX: 0000000000000001 # [ 35.194230] RAX: ffffffffff<4>[ 47.756365] refcount_t: underflow; use-after-free. ffffda RBX: 0000000000000014 RCX: 00007f3a2e536473 # [ 35.202<4>[ 47.768235] WARNING: CPU: 0 PID: 2531 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 490] RDX: 0000000000000014 RSI: 00007f3a2e42a000 RDI: 0000000000<4>[ 47.784217] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table 000001 # [ 35.210749] RBP: 00007f3a2e42a000 R08: 00007f3a2e42<4>[ 47.843130] CPU: 0 PID: 2531 Comm: cat Tainted: G D W 5.10.202-cip41 #1 9010 R09: 0000000000000000 # [ 35.219011] R10: fffffffffffffb<4>[ 47.858350] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 c5 R11: 0000000000000246 R12: 0000000000000001 # [ 35.227262]<4>[ 47.871636] RIP: 0010:refcount_warn_saturate+0xba/0x110 R13: 0000000000000001 R14: 0000000000020000 R15: 00000000000200<4>[ 47.884047] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 00 # WRITE_RO_AFTER_INIT: saw 'call trace:': ok ok 40 selftest<4>[ 47.911473] RSP: 0018:ffffac7e0308fe40 EFLAGS: 00010286 s: lkdtm: WRITE_RO_AFTER_INIT.sh # selftests: lkdtm: WRITE_KERN<4>[ 47.923832] RAX: 0000000000000000 RBX: 000000000000003a RCX: 0000000000000000 .sh # Killed # [ 35.337402] lkdtm: Performing direct entry W<4>[ 47.938282] RDX: ffff90a8bac2c620 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 RITE_KERN # [ 35.347130] lkdtm: attempting bad 7223110 byte w<4>[ 47.952754] RBP: ffffffff89382408 R08: 0000000000000000 R09: 0000000000000000 rite at ffffffff8845f5c6 # [ 35.354913] BUG: unable to handle<4>[ 47.967239] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 page fault for address: ffffffff8845f5c6 # [ 35.362913] #PF:<4>[ 47.981716] R13: ffffac7e0308ff10 R14: ffffac7e0308ff10 R15: ffff90a842d02000 supervisor write access in kernel mode # [ 35.369040] #PF: e<4>[ 47.996210] FS: 00007f575376e580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 rror_code(0x0003) - permissions violation # [ 35.381768] PGD <4>[ 48.011745] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 26c29067 P4D 26c29067 PUD 26c2a063 PMD 25a000e1 # [ 35.38877<4>[ 48.024689] CR2: 00007f5753578000 CR3: 000000010311c006 CR4: 00000000003706f0 0] Oops: 0003 [#16] SMP PTI # [ 35.393041] CPU: 2 PID: 1978 C<4>[ 48.039156] Call Trace: omm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 35<4>[ 48.048414] ? __warn+0x80/0x110 .401982] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 48.058506] ? refcount_warn_saturate+0xba/0x110 # [ 35.409079] RIP: 0010:lkdtm_WRITE_KERN+0x38/0x4e # [ 35.<4>[ 48.070179] ? report_bug+0x9e/0xc0 414523] Code: 53 48 c7 c3 c6 f5 45 88 49 89 dc 48 89 da 49 81 ec<4>[ 48.080574] ? handle_bug+0x41/0x90 80 be d7 87 4c 89 e6 e8 b8 d9 fb ff 48 89 df 4c 89 e1 48 c7 c6 <4>[ 48.090986] ? exc_invalid_op+0x14/0x70 80 be d7 87 a4 48 c7 c7 e0 34 38 89 e8 9d d9 fb ff 5b 41 5c<4>[ 48.101766] ? asm_exc_invalid_op+0x12/0x20 e9 b7 fe ff ff # [ 35.435798] RSP: 0018:ffffac7e0283fe50 EFL<4>[ 48.112968] ? refcount_warn_saturate+0xba/0x110 AGS: 00010246 # [ 35.441914] RAX: 000000000000003c RBX: fffff<4>[ 48.124612] __refcount_sub_and_test.constprop.0+0x3c/0x50 fff8845f5c6 RCX: 00000000006e3746 # [ 35.450174] RDX: 0000000<4>[ 48.137266] lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED+0x3e/0x76 000000000 RSI: ffffffff87d7be80 RDI: ffffffff8845f5c6 # [ 35.<4>[ 48.150080] direct_entry.cold+0x2c/0x38 458433] RBP: ffffffff893826ea R08: 0000000000000000 R09: 0000000<4>[ 48.160997] full_proxy_write+0x53/0x80 000000000 # [ 35.466693] R10: 00000000ffffe000 R11: 3ffffffff<4>[ 48.171771] vfs_write+0xe7/0x3b0 fffffff R12: 00000000006e3746 # [ 35.474954] R13: ffffac7e028<4>[ 48.181991] ksys_write+0x68/0xf0 3ff10 R14: ffffac7e0283ff10 R15: ffff90a842c39000 # [ 35.4832<4>[ 48.192183] do_syscall_64+0x30/0x40 14] FS: 00007f03ec811580(0000) GS:ffff90a8bad00000(0000) knlGS:<4>[ 48.202693] entry_SYSCALL_64_after_hwframe+0x62/0xc7 0000000000000000 # [ 35.492542] CS: 0010 DS: 0000 ES: 0000 C<4>[ 48.214827] RIP: 0033:0x7f5753684473 R0: 0000000080050033 # [ 35.499248] CR2: ffffffff8845f5c6 CR3<4>[ 48.225329] 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 : 0000000102fd4004 CR4: 00000000003706e0 # [ 35.507507] Call <4>[ 48.252817] RSP: 002b:00007ffdc4bd26b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 48.267765] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f5753684473 Trace: # [ 35.510527] ? __die_body.cold+0x1a/0x1f # [ 35.<4>[ 48.276037] RDX: 0000000000000020 RSI: 00007f5753578000 RDI: 0000000000000001 515198] ? no_context+0x177/0x380 # [ 35.519575] ? lkdtm_SLA<4>[ 48.290524] RBP: 00007f5753578000 R08: 00007f5753577010 R09: 0000000000000000 B_FREE_CROSS.cold+0x32/0x32 # [ 35.525313] ? exc_page_fault+<4>[ 48.304985] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 0xd7/0x170 # [ 35.529982] ? asm_exc_page_fault+0x1e/0x30 # <4>[ 48.319503] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 [ 35.534943] ? lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 35<4>[ 48.334011] irq event stamp: 0 .540680] ? lkdtm_SLAB_FREE_PAGE+0x40/0x40 # [ 35.545834] ? <4>[ 48.343920] hardirqs last enabled at (0): [<0000000000000000>] 0x0 lkdtm_SLAB_FREE_CROSS.cold+0x32/0x32 # [ 35.551570] ? lkdtm_<4>[ 48.357460] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 WRITE_KERN+0x38/0x4e # [ 35.556354] direct_entry.cold+0x2c/0<4>[ 48.373120] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 x38 # [ 35.561025] full_proxy_write+0x53/0x80 # [ 35.5655<4>[ 48.388772] softirqs last disabled at (0): [<0000000000000000>] 0x0 97] vfs_write+0xe7/0x3b0 # [ 35.569586] ksys_write+0x68/0xf<4>[ 48.402298] ---[ end trace 4d2843ad41e5ef0f ]--- 0 # [ 35.573575] do_syscall_64+0x30/0x40 # [ 35.577855] <6>[ 48.413968] lkdtm: Saturation detected: still saturated entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 35.583786] RIP: 0033:0x7f03ec727473 # [ 35.588057] 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 # [ 35.609329] RSP: 002b:00007ffc5679b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 35.618099] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f03ec727473 # [ 35.626366] RDX: 000000000000000b RSI: 00007f03ec61b000 RDI: 0000000000000001 # [ 35.634625] RBP: 00007f03ec61b000 R08: 00007f03ec61a010 R09: 0000000000000000 # [ 35.642885] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 35.651145] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 35.659422] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev sn<6>[ 48.538626] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_SATURATED d_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine <6>[ 48.552376] lkdtm: attempting bad refcount_sub_and_test() from saturated regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore corebo<4>[ 48.566373] ------------[ cut here ]------------ ot_table # [ 35.718412] CR2: ffffffff8845f5c6 # [ 35.72241<4>[ 48.578050] refcount_t: underflow; use-after-free. 5] ---[ end trace 4d2843ad41e5eeff ]--- # [ 35.727860] RIP: 0<4>[ 48.589960] WARNING: CPU: 0 PID: 2567 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 010:lkdtm_BUG+0x5/0x10 # [ 35.732529] Code: 89 ff e8 4e d8 79<4>[ 48.605840] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table ff 48 c7 c0 ea ff ff ff eb de 48 c7 c0 ea ff ff ff c3 cc cc cc <4>[ 48.664882] CPU: 0 PID: 2567 Comm: cat Tainted: G D W 5.10.202-cip41 #1 cc 48 c7 c0 f4 ff ff ff eb c9 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84<4>[ 48.679979] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 00 00 00 00 00 0f 1f 44 00 00 83 05 00 62 0b 03 # [ 35.75379<4>[ 48.693356] RIP: 0010:refcount_warn_saturate+0xba/0x110 6] RSP: 0018:ffffac7e0134fe60 EFLAGS: 00010282 # [ 35.759920]<4>[ 48.705628] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 RAX: ffffffff87d7bab0 RBX: 0000000000000001 RCX: 00000000000000<4>[ 48.733195] RSP: 0018:ffffac7e0311fe40 EFLAGS: 00010286 00 # [ 35.768182] RDX: 0000000000000000 RSI: ffff90a8bad1bf50<4>[ 48.745467] RAX: 0000000000000000 RBX: 000000000000003b RCX: 0000000000000000 RDI: ffffffff88ef8370 # [ 35.776441] RBP: ffffffff893e8808 R<4>[ 48.759970] RDX: ffff90a8bac2c620 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 08: 0000000000000001 R09: 0000000000000001 # [ 35.784700] R10<4>[ 48.774430] RBP: ffffffff89382428 R08: 0000000000000000 R09: 0000000000000000 : 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000004 <4>[ 48.788926] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 35.792961] R13: ffffac7e0134ff10 R14: ffffac7e0134ff10 R15<4>[ 48.803386] R13: ffffac7e0311ff10 R14: ffffac7e0311ff10 R15: ffff90a843419000 : ffff90a8436f0000 # [ 35.801221] FS: 00007f03ec811580(0000)<4>[ 48.817884] FS: 00007fc5ddf12580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 35.8105<4>[ 48.833440] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 51] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 35.<4>[ 48.846407] CR2: 00007fc5ddd1c000 CR3: 0000000102cee003 CR4: 00000000003706f0 817256] CR2: ffffffff8845f5c6 CR3: 0000000102fd4004 CR4: 0000000<4>[ 48.860851] Call Trace: 0003706e0 # WRITE_KERN: saw 'call trace:': ok ok 41 selftests:<4>[ 48.870119] ? __warn+0x80/0x110 lkdtm: WRITE_KERN.sh # selftests: lkdtm: REFCOUNT_INC_OVERFLOW<4>[ 48.880205] ? refcount_warn_saturate+0xba/0x110 .sh # [ 35.917566] lkdtm: Performing direct entry REFCOUNT_IN<4>[ 48.891898] ? report_bug+0x9e/0xc0 C_OVERFLOW # [ 35.925792] lkdtm: attempting good refcount_inc<4>[ 48.902281] ? handle_bug+0x41/0x90 () without overflow # [ 35.933020] lkdtm: attempting bad refc<4>[ 48.912703] ? exc_invalid_op+0x14/0x70 ount_inc() overflow # [ 35.939348] ------------[ cut here ]--<4>[ 48.923474] ? asm_exc_invalid_op+0x12/0x20 ---------- # [ 35.944795] refcount_t: saturated; leaking memo<4>[ 48.934683] ? refcount_warn_saturate+0xba/0x110 ry. # [ 35.950467] WARNING: CPU: 2 PID: 2014 at lib/refcount.<4>[ 48.946348] __refcount_sub_and_test.constprop.0+0x3c/0x50 c:22 refcount_warn_saturate+0x51/0x110 # [ 35.960193] Modules<4>[ 48.958974] lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED+0x3e/0x76 linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cro<4>[ 48.971797] direct_entry.cold+0x2c/0x38 s_ec_sensors_core industrialio_triggered_buffer kfifo_buf indust<4>[ 48.982691] full_proxy_write+0x53/0x80 rialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memop<4>[ 48.993474] vfs_write+0xe7/0x3b0 s cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charge<4>[ 49.003696] ksys_write+0x68/0xf0 r cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_li<4>[ 49.013895] do_syscall_64+0x30/0x40 ghtbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_co<4>[ 49.024428] entry_SYSCALL_64_after_hwframe+0x62/0xc7 mpress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regm<4>[ 49.036550] RIP: 0033:0x7fc5dde28473 ap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_t<4>[ 49.047061] 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 able # [ 36.019143] CPU: 2 PID: 2014 Comm: cat Tainted: G <4>[ 49.074545] RSP: 002b:00007ffd219867a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 D W 5.10.202-cip41 #1 # [ 36.028085] Hardware name:<4>[ 49.089526] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fc5dde28473 Google Rammus/Rammus, BIOS 09/04/2020 # [ 36.035182] RIP: 0<4>[ 49.103988] RDX: 0000000000000020 RSI: 00007fc5ddd1c000 RDI: 0000000000000001 010:refcount_warn_saturate+0x51/0x110 # [ 36.041309] Code: 84<4>[ 49.118508] RBP: 00007fc5ddd1c000 R08: 00007fc5ddd1b010 R09: 0000000000000000 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 <4>[ 49.132962] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f><4>[ 49.147469] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d <4>[ 49.161928] irq event stamp: 0 # [ 36.062585] RSP: 0018:ffffac7e028cfe48 EFLAGS: 00010286 #<4>[ 49.171871] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 36.068711] RAX: 0000000000000000 RBX: 000000000000002b RCX:<4>[ 49.185377] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 0000000000000000 # [ 36.076973] RDX: ffff90a8bad2c620 RSI: f<4>[ 49.201021] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 fff90a8bad1bf50 RDI: ffff90a8bad1bf50 # [ 36.085245] RBP: fff<4>[ 49.216640] softirqs last disabled at (0): [<0000000000000000>] 0x0 fffff893826f5 R08: 0000000000000000 R09: 0000000000000000 # [ <4>[ 49.230148] ---[ end trace 4d2843ad41e5ef10 ]--- 36.099715] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000<6>[ 49.241805] lkdtm: Saturation detected: still saturated 0000000000016 # [ 36.107980] R13: ffffac7e028cff10 R14: ffffac7e028cff10 R15: ffff90a84342e000 # [ 36.116245] FS: 00007fbe1af0a580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 36.125602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 36.132330] CR2: 00007fbe1ad14000 CR3: 0000000102c1e003 CR4: 00000000003706e0 # [ 36.146794] Call Trace: # [ 36.149821] ? __warn+0x80/0x110 # [ 36.153744] ? refcount_warn_saturate+0x51/0x110 # [ 36.165414] ? report_bug+0x9e/0xc0 # [ 36.169602] ? handle_bug+0x41/0x90 # [ 36.173818] ? exc_invalid_op+0x14/0x70 # [ 36.178407] ? asm_exc_invalid_op+0x12/0x20 # [ 36.183421] ? refcount_warn_saturate+0x51/0x110 # [ 36.188899] ? refcount_warn_saturate+0x51/0x110 # [ 36.194365] lkdtm_REFCOUNT_INC_OVERFLOW+0x70/0x98 # [ 36.206225] direct_entry.cold+0x2c/0x38 # [ 36.217116] full_proxy_write+0x53/0x80 # [ 36.227907] vfs_write+0xe7/0x3b0 # [ 36.238114] ksys_write+0x68/0xf0 # [ 36.248319] do_syscall_64+0x30/0x40 # [ 36.258818] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 36.270967] RIP: 0033:0x7fbe1ae20473 # [ 36.281465] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 36.308956] RSP: 002b:00007ffce2d5e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 36.323921] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fbe1ae20473 # [ 36.338403] RDX: 0000000000000016 RSI: 00007fbe1ad14000 RDI: 0000000000000001 # [ 36.352882] RBP: 00007fbe1ad14000 R08: 00007fbe1ad13010 R09: 0000000000000000 # [ 36.361148] R10: fffffffffff<6>[ 49.417276] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_TO ffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 36.3756<6>[ 49.428959] lkdtm: attempting good copy_to_user of correct size 21] R13: 0000000000000001 R14: 0000000000020000 R15: 00000000000<6>[ 49.442124] lkdtm: attempting bad copy_to_user of too large size 20000 # [ 36.383890] irq event stamp: 0 # [ 36.393795] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 36.401089] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 36.410520] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 36.419950] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 36.427243] ---[ end trace 4d2843ad41e5ef00 ]--- # [ 36.432689] 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 # [ 36.531627] lkdtm: Performing direct entry REFCOUNT_ADD_OVERFLOW # [ 36.544491] lkdtm: attempting good refcount_add() without overflow # [ 36.557903] lkdtm: attempting bad refcount_add() overflow # [ 36.570435] ------------[ cut here ]------------ # [ 36.575882] refcount_t: saturated; leaking memory. # [ 36.587766] WARNING: CPU: 1 PID: 2047 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 36.603671] Modules linked <6>[ 49.559215] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_FROM in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sen<6>[ 49.568159] lkdtm: attempting good copy_from_user of correct size sors_core industrialio_triggered_buffer kfifo_buf industrialio u<6>[ 49.581494] lkdtm: attempting bad copy_from_user of too large size vcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 36.662629] CPU: 1 PID: 2047 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 36.677789] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 36.684890] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 36.697227] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d # [ 36.718503] RSP: 0018:ffffac7e0294fe48 EFLAGS: 00010286 # [ 36.730842] RAX: 0000000000000000 RBX: 000000000000002c RCX: 0000000000000000 # [ 36.745322] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 36.759800] RBP: ffffffff893<6>[ 49.698995] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_TO 8270b R08: 0000000000000000 R09: 0000000000000000 # [ 36.7680<6>[ 49.708039] lkdtm: attempting good copy_to_user inside whitelist 87] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 00000000000<6>[ 49.721288] lkdtm: attempting bad copy_to_user outside whitelist 00016 # [ 36.782541] R13: ffffac7e0294ff10 R14: ffffac7e0294ff10 R15: ffff90a842f91000 # [ 36.797020] FS: 00007fda73c71580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 36.806361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 36.819278] CR2: 00007fda73a7b000 CR3: 00000001027fa002 CR4: 00000000003706e0 # [ 36.827543] Call Trace: # [ 36.836777] ? __warn+0x80/0x110 # [ 36.846883] ? refcount_warn_saturate+0x51/0x110 # [ 36.852350] ? report_bug+0x9e/0xc0 # [ 36.862727] ? handle_bug+0x41/0x90 # [ 36.873128] ? exc_invalid_op+0x14/0x70 # [ 36.877704] ? asm_exc_invalid_op+0x12/0x20 # [ 36.888877] ? refcount_warn_saturate+0x51/0x110 # [ 36.900537] ? refcount_warn_saturate+0x51/0x110 # [ 36.905986] lkdtm_REFCOUNT_ADD_OVERFLOW+0x7f/0xa7 # [ 36.917838] direct_entry.cold+0x2c/0x38 # [ 36.922513] full_proxy_write+0x53/0x80 # [ 36.933295] vfs_write+0xe7/0x3b0 # [ 36.943525] ksys_write+0x68/0xf0 # [ 36.947519] do_syscall_64+0x30/0x40 # [ 36.958009] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [<6>[ 49.837703] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_FROM <6>[ 49.847817] lkdtm: attempting good copy_from_user inside whitelist 36.963969] RIP: 0033:0x7fda73b87473 # [ 36.974462] Code: 8<6>[ 49.855032] lkdtm: attempting bad copy_from_user outside whitelist b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 36.995740] RSP: 002b:00007ffff8692378 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 37.010701] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007fda73b87473 # [ 37.025179] RDX: 0000000000000016 RSI: 00007fda73a7b000 RDI: 0000000000000001 # [ 37.033444] RBP: 00007fda73a7b000 R08: 00007fda73a7a010 R09: 0000000000000000 # [ 37.047917] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 37.056182] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 37.064449] irq event stamp: 0 # [ 37.074363] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 37.081657] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 37.097294] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 37.106725] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 37<6>[ 49.968176] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_TO <6>[ 49.981339] lkdtm: good_stack: ffffac7e034c7e20-ffffac7e034c7e40 .120226] ---[ end trace 4d2843ad41e5ef01 ]--- # [ 37.125676] <6>[ 49.988350] lkdtm: bad_stack : ffffac7e034c7da8-ffffac7e034c7dc8 lkdtm: Overflow detected: saturated # REFCOUNT_ADD_OVERFLOW: sa<6>[ 50.001616] lkdtm: attempting good copy_to_user of local stack w 'call trace:': ok ok 43 selftests: lkdtm: REFCOUNT_ADD_OVERFL<6>[ 50.014647] lkdtm: attempting bad copy_to_user of distant stack OW.sh # selftests: lkdtm: REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh # [ 37.229884] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_OVERFLOW # [ 37.238368] lkdtm: attempting bad refcount_inc_not_zero() overflow # [ 37.251777] ------------[ cut here ]------------ # [ 37.263438] refcount_t: saturated; leaking memory. # [ 37.275327] WARNING: CPU: 1 PID: 2080 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 37.291226] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 37.350212] CPU: 1 PID: 2080 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 37.365368] Hardware nam<6>[ 50.132888] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_FROM <6>[ 50.140789] lkdtm: good_stack: ffffac7e0356fe20-ffffac7e0356fe40 <6>[ 50.147823] lkdtm: bad_stack : ffffac7e0356fda8-ffffac7e0356fdc8 <6>[ 50.154830] lkdtm: attempting good copy_from_user of local stack <6>[ 50.161841] lkdtm: attempting bad copy_from_user of distant stack e: Google Rammus/Rammus, BIOS 09/04/2020 # [ 37.378677] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 37.384830] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d # [ 37.412317] RSP: 0018:ffffac7e029c7e38 EFLAGS: 00010282 # [ 37.418470] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 # [ 37.432942] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 37.441207] RBP: ffffffff89382348 R08: 0000000000000000 R09: 0000000000000000 # [ 37.455680] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 37.463944] R13: ffffac7e029c7f10 R14: ffffac7e029c7f10 R15: ffff90a846427000 # [ 37.478417] FS: 00007f236bcbb580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 37.487750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 37.500671] CR2: 00007f236bac5000 CR3: 0000000102d14001 CR4: 00000000003706e0 # [ 37.508935] Call Trace: # [ <6>[ 50.274104] lkdtm: Performing direct entry USERCOPY_STACK_BEYOND <6>[ 50.281648] lkdtm: good_stack: ffffac7e03607e20-ffffac7e03607e40 <6>[ 50.288682] lkdtm: bad_stack : ffffac7e03607ff8-ffffac7e03608018 <6>[ 50.295694] lkdtm: attempting good copy_to_user of local stack <6>[ 50.302532] lkdtm: attempting bad copy_to_user of distant stack 37.518168] ? __warn+0x80/0x110 # [ 37.528279] ? refcount_wa<4>[ 50.309453] lkdtm: copy_to_user failed, but lacked Oops rn_saturate+0x97/0x110 # [ 37.539941] ? report_bug+0x9e/0xc0 # [ 37.550366] ? handle_bug+0x41/0x90 # [ 37.560763] ? exc_invalid_op+0x14/0x70 # [ 37.565363] ? asm_exc_invalid_op+0x12/0x20 # [ 37.576535] ? refcount_warn_saturate+0x97/0x110 # [ 37.588197] ? refcount_warn_saturate+0x97/0x110 # [ 37.593647] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 37.606275] lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW+0x3e/0x76 # [ 37.612790] direct_entry.cold+0x2c/0x38 # [ 37.623671] full_proxy_write+0x53/0x80 # [ 37.634462] vfs_write+0xe7/0x3b0 # [ 37.644667] ksys_write+0x68/0xf0 # [ 37.648662] do_syscall_64+0x30/0x40 # [ 37.659152] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 37.665087] RIP: 0033:0x7f236bbd1473 # [ 37.675577] 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 # [ 37.696856] RSP: 002b:00007ffe62b64fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 37.711814] <6>[ 50.421454] lkdtm: Performing direct entry USERCOPY_KERNEL RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f236bbd147<6>[ 50.433908] lkdtm: attempting good copy_to_user from kernel rodata: ffffffff88ef8810 3 # [ 37.720079] RDX: 000000000000001f RSI: 00007f236bac5000 <6>[ 50.449076] lkdtm: attempting bad copy_to_user from kernel text: ffffffff874e2c00 RDI: 0000000000000001 # [ 37.734553] RBP: 00007f236bac5000 R0<3>[ 50.463920] lkdtm: FAIL: survived bad copy_to_user() 8: 00007f236bac4010 R09: 0000000000000000 # [ 37.742819] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 37.757293] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 37.765563] irq event stamp: 0 # [ 37.775475] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 37.782769] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 37.798419] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 37.814065] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 37.821363] ---[ end trace 4d2843ad41e5ef02 ]--- # [ 37.833019] 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 # [ 37.926445] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_OVERFLOW # [ 37.939475] lkdtm: attempting bad refcount_add_not_zero() overflow # [ 37.952886] ------------[ cut here ]------------ # [ 37.964<6>[ 50.579630] lkdtm: Performing direct entry STACKLEAK_ERASING 548] refcount_t: saturated; leaking memory. # [ 37.970227] WA<6>[ 50.588283] lkdtm: checking unused part of the thread stack (15928 bytes)... RNING: CPU: 1 PID: 2113 at lib/refcount.c:19 refcount_warn_satur<3>[ 50.602666] lkdtm: FAIL: the erased part is not found (checked 15928 bytes) ate+0x97/0x110 # [ 37.986131] Modules linked in: fuse ip_tabl<3>[ 50.616936] lkdtm: FAIL: the thread stack is NOT properly erased es cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core indust<4>[ 50.630191] CPU: 0 PID: 2943 Comm: cat Tainted: G D W 5.10.202-cip41 #1 <4>[ 50.645290] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 <4>[ 50.652375] Call Trace: <4>[ 50.655414] dump_stack+0x77/0x9b <4>[ 50.659412] lkdtm_STACKLEAK_ERASING+0x116/0x144 <4>[ 50.664858] direct_entry.cold+0x2c/0x38 <4>[ 50.669519] full_proxy_write+0x53/0x80 <4>[ 50.674097] vfs_write+0xe7/0x3b0 <4>[ 50.678086] ksys_write+0x68/0xf0 <4>[ 50.682068] do_syscall_64+0x30/0x40 <4>[ 50.686360] entry_SYSCALL_64_after_hwframe+0x62/0xc7 <4>[ 50.692291] RIP: 0033:0x7f8792d3c473 <4>[ 50.696568] 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>[ 50.717840] RSP: 002b:00007fff97f63a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 <4>[ 50.726588] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f8792d3c473 <4>[ 50.734850] RDX: 0000000000000012 RSI: 00007f8792c30000 RDI: 0000000000000001 <4>[ 50.743111] RBP: 00007f8792c30000 R08: 00007f8792c2f010 R09: 0000000000000000 <4>[ 50.751372] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 <4>[ 50.759633] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 rialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 38.045085] CPU: 1 PID: 2113 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 38.054031] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 38.067371] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 38.079705] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d # [ 38.107204] RSP: 0018:ffffac7e02a4fe38 EFLAGS: 00010282 # [ 38.119546] RAX: 0000000000000000 RBX: 000000007fffffff RCX: 0000000000000000 # [ 38.134021] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: fff<6>[ 50.872778] lkdtm: Performing direct entry CFI_FORWARD_PROTO <6>[ 50.880195] lkdtm: Calling matched prototype ... <6>[ 50.885646] lkdtm: Calling mismatched prototype ... <6>[ 50.891420] lkdtm: Fail: survived mismatched prototype function call! f90a8bac9bf50 # [ 38.148500] RBP: ffffffff89382368 R08: 0000000000000000 R09: 0000000000000000 # [ 38.162980] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 38.177461] R13: ffffac7e02a4ff10 R14: ffffac7e02a4ff10 R15: ffff90a8426e8000 # [ 38.191944] FS: 00007efc8a3e6580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 38.207493] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.220421] CR2: 00007efc8a1f0000 CR3: 0000000102780005 CR4: 00000000003706e0 # [ 38.234903] Call Trace: # [ 38.244146] ? __warn+0x80/0x110 # [ 38.254254] ? refcount_warn_saturate+0x97/0x110 # [ 38.265919] ? report_bug+0x9e/0xc0 # [ 38.276321] ? handle_bug+0x41/0x90 # [ 38.286722] ? exc_invalid_op+0x14/0x70 # [ 38.297511] ? asm_exc_invalid_op+0x12/0x20 # [ 38.308694] ? refcount_warn_saturate+0x97/0x110 # [ 38.320357] ? refcount_warn_saturate+0x97/0x110 # [ 38.332023] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 38.344658] lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW+0x3e/0x76 # [ 38.357390] direct_entry.cold+0x2c/0x38 # [ 38.368279] full_proxy_write+0x53/0x80 # [ 38.379071] vfs_write+0xe7/0x3b0 # [ 38.389277] ksys_write+0x68/0xf0 # [ 38.399484] do_syscall_64+0x30/0x40 # [ 38.409978] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 38.422126] RIP: 0033:0x7efc8a2fc473 # [ 38.432624] 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 # [ 38.460116] RSP: 002b:00007ffc2db0e858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 38.475081] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007efc8a2fc473 # [ 38.489558] RDX: 000000000000001f RSI: 00007efc8a1f0000 RDI: 0000000000000001 # [ 38.504040] RBP: 00007efc8a1f0000 R08: 00007efc8a1ef010 R09: 0000000000000000 # [ 38.518521] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 38.532999] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 38.547486] irq event stamp: 0 # [ 38.557412] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 38.570923] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 38.586568] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 38.602214] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 38.615721] ---[ end trace 4d2843ad41e5ef03 ]--- # [ 38.621159] 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 # [ 38.732703] lkdtm: Performing direct entry REFCOUNT_DEC_ZERO # [ 38.744992] lkdtm: attempting good refcount_dec() # [ 38.750560] lkdtm: attempting bad refcount_dec() to zero # [ 38.756786] ------------[ cut here ]------------ # [ 38.762232] refcount_t: decrement hit 0; leaking memory. # [ 38.768488] WARNING: CPU: 2 PID: 2147 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 38.778212] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 38.837169] CPU: 2 PID: 2147 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 38.846141] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 38.853242] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 38.859414] Code: a0 d3 2d 89 c6 05 b5 fc 16 02 01 e8 d9 f2 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 70 d3 2d 89 c6 05 9c fc 16 02 01 e8 bf f2 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 38.880690] RSP: 0018:ffffac7e02a9fe48 EFLAGS: 00010286 # [ 38.886820] RAX: 0000000000000000 RBX: 000000000000002f RCX: 0000000000000000 # [ 38.895086] RDX: ffff90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 # [ 38.903375] RBP: ffffffff89382721 R08: 0000000000000000 R09: 0000000000000000 # [ 38.911642] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 38.919907] R13: ffffac7e02a9ff10 R14: ffffac7e02a9ff10 R15: ffff90a843f49000 # [ 38.928173] FS: 00007f0e72af9580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 38.937505] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 38.944217] CR2: 00007f0e72903000 CR3: 0000000102c04001 CR4: 00000000003706e0 # [ 38.952480] Call Trace: # [ 38.955504] ? __warn+0x80/0x110 # [ 38.959432] ? refcount_warn_saturate+0xfb/0x110 # [ 38.964883] ? report_bug+0x9e/0xc0 # [ 38.969104] ? handle_bug+0x41/0x90 # [ 38.973320] ? exc_invalid_op+0x14/0x70 # [ 38.977894] ? asm_exc_invalid_op+0x12/0x20 # [ 38.982861] ? refcount_warn_saturate+0xfb/0x110 # [ 38.988320] ? refcount_warn_saturate+0xfb/0x110 # [ 38.993797] lkdtm_REFCOUNT_DEC_ZERO+0x4d/0xbd # [ 38.999054] direct_entry.cold+0x2c/0x38 # [ 39.003728] full_proxy_write+0x53/0x80 # [ 39.008354] vfs_write+0xe7/0x3b0 # [ 39.012356] ksys_write+0x68/0xf0 # [ 39.022558] do_syscall_64+0x30/0x40 # [ 39.026872] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 39.032807] RIP: 0033:0x7f0e72a0f473 # [ 39.037121] 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 # [ 39.058415] RSP: 002b:00007ffcef85d5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 39.067165] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f0e72a0f473 # [ 39.075431] RDX: 0000000000000012 RSI: 00007f0e72903000 RDI: 0000000000000001 # [ 39.083695] RBP: 00007f0e72903000 R08: 00007f0e72902010 R09: 0000000000000000 # [ 39.091961] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 39.100228] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 39.108495] irq event stamp: 0 # [ 39.112227] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 39.119523] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 39.128984] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 39.138416] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 39.145710] ---[ end trace 4d2843ad41e5ef04 ]--- # [ 39.151159] 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 # [ 39.389567] lkdtm: Performing direct entry REFCOUNT_DEC_NEGATIVE # [ 39.402054] lkdtm: attempting bad refcount_dec() below zero # [ 39.414787] ------------[ cut here ]------------ # [ 39.426450] refcount_t: decrement hit 0; leaking memory. # [ 39.438919] WARNING: CPU: 1 PID: 2183 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 39.454827] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 39.513786] CPU: 1 PID: 2183 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 39.528945] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 39.542260] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 39.554603] Code: a0 d3 2d 89 c6 05 b5 fc 16 02 01 e8 d9 f2 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 70 d3 2d 89 c6 05 9c fc 16 02 01 e8 bf f2 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 39.582096] RSP: 0018:ffffac7e02b57e48 EFLAGS: 00010286 # [ 39.594442] RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000 # [ 39.608922] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 39.623408] RBP: ffffffff89382733 R08: 0000000000000000 R09: 0000000000000000 # [ 39.637888] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000016 # [ 39.652370] R13: ffffac7e02b57f10 R14: ffffac7e02b57f10 R15: ffff90a843f14000 # [ 39.666851] FS: 00007f39c8cba580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 39.682411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 39.695358] CR2: 00007f39c8ac4000 CR3: 00000001035c2003 CR4: 00000000003706e0 # [ 39.709836] Call Trace: # [ 39.712863] ? __warn+0x80/0x110 # [ 39.722970] ? refcount_warn_saturate+0xfb/0x110 # [ 39.728419] ? report_bug+0x9e/0xc0 # [ 39.738817] ? handle_bug+0x41/0x90 # [ 39.749214] ? exc_invalid_op+0x14/0x70 # [ 39.753791] ? asm_exc_invalid_op+0x12/0x20 # [ 39.764966] ? refcount_warn_saturate+0xfb/0x110 # [ 39.776627] ? refcount_warn_saturate+0xfb/0x110 # [ 39.782079] lkdtm_REFCOUNT_DEC_NEGATIVE+0x37/0x61 # [ 39.793930] direct_entry.cold+0x2c/0x38 # [ 39.798606] full_proxy_write+0x53/0x80 # [ 39.809406] vfs_write+0xe7/0x3b0 # [ 39.819612] ksys_write+0x68/0xf0 # [ 39.823605] do_syscall_64+0x30/0x40 # [ 39.834096] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 39.840030] RIP: 0033:0x7f39c8bd0473 # [ 39.850524] 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 # [ 39.871804] RSP: 002b:00007ffd3fffe588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 39.886762] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f39c8bd0473 # [ 39.895026] RDX: 0000000000000016 RSI: 00007f39c8ac4000 RDI: 0000000000000001 # [ 39.909501] RBP: 00007f39c8ac4000 R08: 00007f39c8ac3010 R09: 0000000000000000 # [ 39.917765] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 39.932241] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 39.940509] irq event stamp: 0 # [ 39.950431] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 39.963940] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 39.979584] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 39.995236] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 40.008741] ---[ end trace 4d2843ad41e5ef05 ]--- # [ 40.020416] 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 # [ 40.136387] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_NEGATIVE # [ 40.145515] lkdtm: attempting bad refcount_dec_and_test() below zero # [ 40.159121] ------------[ cut here ]------------ # [ 40.170784] refcount_t: underflow; use-after-free. # [ 40.182675] WARNING: CPU: 1 PID: 2219 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 40.198581] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 40.257541] CPU: 1 PID: 2219 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 40.272704] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 40.286020] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 40.298367] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 40.325882] RSP: 0018:ffffac7e02be7e40 EFLAGS: 00010286 # [ 40.338208] RAX: 0000000000000000 RBX: 0000000000000031 RCX: 0000000000000000 # [ 40.352685] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 40.367165] RBP: ffffffff89382388 R08: 0000000000000000 R09: 0000000000000000 # [ 40.381645] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 40.396125] R13: ffffac7e02be7f10 R14: ffffac7e02be7f10 R15: ffff90a846658000 # [ 40.410605] FS: 00007fc2314c0580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 40.426153] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 40.439080] CR2: 00007fc2312ca000 CR3: 00000001035c2004 CR4: 00000000003706e0 # [ 40.453561] Call Trace: # [ 40.462801] ? __warn+0x80/0x110 # [ 40.472908] ? refcount_warn_saturate+0xba/0x110 # [ 40.484572] ? report_bug+0x9e/0xc0 # [ 40.494975] ? handle_bug+0x41/0x90 # [ 40.505377] ? exc_invalid_op+0x14/0x70 # [ 40.516164] ? asm_exc_invalid_op+0x12/0x20 # [ 40.527368] ? refcount_warn_saturate+0xba/0x110 # [ 40.539029] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 40.551663] lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE+0x3e/0x78 # [ 40.564407] direct_entry.cold+0x2c/0x38 # [ 40.575297] full_proxy_write+0x53/0x80 # [ 40.586087] vfs_write+0xe7/0x3b0 # [ 40.596293] ksys_write+0x68/0xf0 # [ 40.600288] do_syscall_64+0x30/0x40 # [ 40.610779] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 40.616738] RIP: 0033:0x7fc2313d6473 # [ 40.627231] 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 # [ 40.654726] RSP: 002b:00007fff063358e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 40.663479] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007fc2313d6473 # [ 40.677955] RDX: 000000000000001f RSI: 00007fc2312ca000 RDI: 0000000000000001 # [ 40.686219] RBP: 00007fc2312ca000 R08: 00007fc2312c9010 R09: 0000000000000000 # [ 40.700693] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 40.708958] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 40.723435] irq event stamp: 0 # [ 40.733373] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 40.740668] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 40.756310] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 40.765741] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 40.779244] ---[ end trace 4d2843ad41e5ef06 ]--- # [ 40.784692] 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 # [ 40.922950] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_NEGATIVE # [ 40.934956] lkdtm: attempting bad refcount_sub_and_test() below zero # [ 40.948588] ------------[ cut here ]------------ # [ 40.960220] refcount_t: underflow; use-after-free. # [ 40.965895] WARNING: CPU: 1 PID: 2255 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 40.981797] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 41.040757] CPU: 1 PID: 2255 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 41.055914] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 41.069230] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 41.081572] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 41.102853] RSP: 0018:ffffac7e02c77e40 EFLAGS: 00010286 # [ 41.115190] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 0000000000000000 # [ 41.129669] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 41.137933] RBP: ffffffff893823a8 R08: 0000000000000000 R09: 0000000000000000 # [ 41.152409] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 000000000000001f # [ 41.160676] R13: ffffac7e02c77f10 R14: ffffac7e02c77f10 R15: ffff90a842670000 # [ 41.175151] FS: 00007f8e3cd87580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 41.190699] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 41.197424] CR2: 00007f8e3cb91000 CR3: 000000010363c005 CR4: 00000000003706e0 # [ 41.211899] Call Trace: # [ 41.214930] ? __warn+0x80/0x110 # [ 41.225035] ? refcount_warn_saturate+0xba/0x110 # [ 41.236698] ? report_bug+0x9e/0xc0 # [ 41.247102] ? handle_bug+0x41/0x90 # [ 41.257531] ? exc_invalid_op+0x14/0x70 # [ 41.268295] ? asm_exc_invalid_op+0x12/0x20 # [ 41.279473] ? refcount_warn_saturate+0xba/0x110 # [ 41.291135] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 41.303771] lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE+0x3e/0x7b # [ 41.316502] direct_entry.cold+0x2c/0x38 # [ 41.327393] full_proxy_write+0x53/0x80 # [ 41.338181] vfs_write+0xe7/0x3b0 # [ 41.348401] ksys_write+0x68/0xf0 # [ 41.358616] do_syscall_64+0x30/0x40 # [ 41.369113] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 41.381262] RIP: 0033:0x7f8e3cc9d473 # [ 41.391759] 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 # [ 41.419253] RSP: 002b:00007ffc79eede88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 41.434218] RAX: ffffffffffffffda RBX: 000000000000001f RCX: 00007f8e3cc9d473 # [ 41.448700] RDX: 000000000000001f RSI: 00007f8e3cb91000 RDI: 0000000000000001 # [ 41.463180] RBP: 00007f8e3cb91000 R08: 00007f8e3cb90010 R09: 0000000000000000 # [ 41.477662] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 41.492144] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 41.506627] irq event stamp: 0 # [ 41.516537] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 41.530046] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 41.545691] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 41.561362] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 41.574860] ---[ end trace 4d2843ad41e5ef07 ]--- # [ 41.586522] 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 # [ 42.089304] lkdtm: Performing direct entry REFCOUNT_INC_ZERO # [ 42.099708] lkdtm: attempting safe refcount_inc_not_zero() from zero # [ 42.113316] lkdtm: Good: zero detected # [ 42.124006] lkdtm: Correctly stayed at zero # [ 42.135180] lkdtm: attempting bad refcount_inc() from zero # [ 42.147814] ------------[ cut here ]------------ # [ 42.159476] refcount_t: addition on 0; use-after-free. # [ 42.171750] WARNING: CPU: 1 PID: 2288 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 # [ 42.187652] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 42.246607] CPU: 1 PID: 2288 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 42.261766] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 42.275083] RIP: 0010:refcount_warn_saturate+0x74/0x110 # [ 42.287425] Code: 02 01 e8 69 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d 89 c6 05 25 fd 16 02 01 e8 46 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d # [ 42.314919] RSP: 0018:ffffac7e02d07e48 EFLAGS: 00010286 # [ 42.327258] RAX: 0000000000000000 RBX: 0000000000000033 RCX: 0000000000000000 # [ 42.341736] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 42.356217] RBP: ffffffff89382749 R08: 0000000000000000 R09: 0000000000000000 # [ 42.370695] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 42.385179] R13: ffffac7e02d07f10 R14: ffffac7e02d07f10 R15: ffff90a842f61000 # [ 42.399657] FS: 00007f04cbd22580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 42.415212] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 42.428135] CR2: 00007f04cbb2c000 CR3: 00000001035c2003 CR4: 00000000003706e0 # [ 42.442611] Call Trace: # [ 42.451852] ? __warn+0x80/0x110 # [ 42.461958] ? refcount_warn_saturate+0x74/0x110 # [ 42.473623] ? report_bug+0x9e/0xc0 # [ 42.484026] ? handle_bug+0x41/0x90 # [ 42.494425] ? exc_invalid_op+0x14/0x70 # [ 42.505215] ? asm_exc_invalid_op+0x12/0x20 # [ 42.516417] ? refcount_warn_saturate+0x74/0x110 # [ 42.528075] ? refcount_warn_saturate+0x74/0x110 # [ 42.539739] lkdtm_REFCOUNT_INC_ZERO+0x99/0xc1 # [ 42.551207] direct_entry.cold+0x2c/0x38 # [ 42.562098] full_proxy_write+0x53/0x80 # [ 42.572887] vfs_write+0xe7/0x3b0 # [ 42.583094] ksys_write+0x68/0xf0 # [ 42.593302] do_syscall_64+0x30/0x40 # [ 42.603800] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 42.615948] RIP: 0033:0x7f04cbc38473 # [ 42.626445] 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 # [ 42.653935] RSP: 002b:00007ffe0dbed2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 42.668899] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f04cbc38473 # [ 42.683380] RDX: 0000000000000012 RSI: 00007f04cbb2c000 RDI: 0000000000000001 # [ 42.697858] RBP: 00007f04cbb2c000 R08: 00007f04cbb2b010 R09: 0000000000000000 # [ 42.712356] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 42.720625] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 42.735106] irq event stamp: 0 # [ 42.745017] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 42.758527] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 42.774174] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 42.789819] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 42.803332] ---[ end trace 4d2843ad41e5ef08 ]--- # [ 42.814995] 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 # [ 42.934104] lkdtm: Performing direct entry REFCOUNT_ADD_ZERO # [ 42.944660] lkdtm: attempting safe refcount_add_not_zero() from zero # [ 42.958269] lkdtm: Good: zero detected # [ 42.968962] lkdtm: Correctly stayed at zero # [ 42.980138] lkdtm: attempting bad refcount_add() from zero # [ 42.986557] ------------[ cut here ]------------ # [ 42.998217] refcount_t: addition on 0; use-after-free. # [ 43.004288] WARNING: CPU: 1 PID: 2321 at lib/refcount.c:25 refcount_warn_saturate+0x74/0x110 # [ 43.020183] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 43.079140] CPU: 1 PID: 2321 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 43.088086] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 43.101412] RIP: 0010:refcount_warn_saturate+0x74/0x110 # [ 43.113755] Code: 02 01 e8 69 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d 89 c6 05 25 fd 16 02 01 e8 46 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d # [ 43.135034] RSP: 0018:ffffac7e02d7fe48 EFLAGS: 00010286 # [ 43.147371] RAX: 0000000000000000 RBX: 0000000000000034 RCX: 0000000000000000 # [ 43.155637] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 43.170110] RBP: ffffffff8938275b R08: 0000000000000000 R09: 0000000000000000 # [ 43.178378] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000012 # [ 43.192857] R13: ffffac7e02d7ff10 R14: ffffac7e02d7ff10 R15: ffff90a845889000 # [ 43.201122] FS: 00007f4795a44580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 43.216665] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 43.223377] CR2: 00007f479584e000 CR3: 00000001026aa001 CR4: 00000000003706e0 # [ 43.237851] Call Trace: # [ 43.240876] ? __warn+0x80/0x110 # [ 43.250976] ? refcount_warn_saturate+0x74/0x110 # [ 43.262640] ? report_bug+0x9e/0xc0 # [ 43.266854] ? handle_bug+0x41/0x90 # [ 43.277247] ? exc_invalid_op+0x14/0x70 # [ 43.281822] ? asm_exc_invalid_op+0x12/0x20 # [ 43.292998] ? refcount_warn_saturate+0x74/0x110 # [ 43.304660] ? refcount_warn_saturate+0x74/0x110 # [ 43.310112] lkdtm_REFCOUNT_ADD_ZERO+0x99/0xc1 # [ 43.321574] direct_entry.cold+0x2c/0x38 # [ 43.326249] full_proxy_write+0x53/0x80 # [ 43.337033] vfs_write+0xe7/0x3b0 # [ 43.347241] ksys_write+0x68/0xf0 # [ 43.357449] do_syscall_64+0x30/0x40 # [ 43.367948] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 43.373884] RIP: 0033:0x7f479595a473 # [ 43.384376] 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 # [ 43.411869] RSP: 002b:00007ffde92c8b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 43.420620] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f479595a473 # [ 43.435094] RDX: 0000000000000012 RSI: 00007f479584e000 RDI: 0000000000000001 # [ 43.443361] RBP: 00007f479584e000 R08: 00007f479584d010 R09: 0000000000000000 # [ 43.457836] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 43.466103] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 43.480580] irq event stamp: 0 # [ 43.490492] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 43.497788] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 43.513428] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 43.529075] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 43.536370] ---[ end trace 4d2843ad41e5ef09 ]--- # [ 43.548027] 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 # [ 43.691934] lkdtm: Performing direct entry REFCOUNT_INC_SATURATED # [ 43.703434] lkdtm: attempting bad refcount_inc() from saturated # [ 43.716555] ------------[ cut here ]------------ # [ 43.728215] refcount_t: saturated; leaking memory. # [ 43.733888] WARNING: CPU: 1 PID: 2357 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 43.749788] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 43.808751] CPU: 1 PID: 2357 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 43.823913] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 43.837228] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 43.849572] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d # [ 43.870874] RSP: 0018:ffffac7e02dffe48 EFLAGS: 00010286 # [ 43.883192] RAX: 0000000000000000 RBX: 0000000000000035 RCX: 0000000000000000 # [ 43.897666] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 43.905933] RBP: ffffffff8938276d R08: 0000000000000000 R09: 0000000000000000 # [ 43.920408] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 43.928672] R13: ffffac7e02dfff10 R14: ffffac7e02dfff10 R15: ffff90a843f73000 # [ 43.943147] FS: 00007f3caf768580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 43.952481] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 43.965407] CR2: 00007f3caf572000 CR3: 0000000102fba003 CR4: 00000000003706e0 # [ 43.973674] Call Trace: # [ 43.982908] ? __warn+0x80/0x110 # [ 43.993017] ? refcount_warn_saturate+0x51/0x110 # [ 43.998467] ? report_bug+0x9e/0xc0 # [ 44.008864] ? handle_bug+0x41/0x90 # [ 44.019265] ? exc_invalid_op+0x14/0x70 # [ 44.023842] ? asm_exc_invalid_op+0x12/0x20 # [ 44.035016] ? refcount_warn_saturate+0x51/0x110 # [ 44.046678] ? refcount_warn_saturate+0x51/0x110 # [ 44.052130] lkdtm_REFCOUNT_INC_SATURATED+0x3c/0x64 # [ 44.064078] direct_entry.cold+0x2c/0x38 # [ 44.068752] full_proxy_write+0x53/0x80 # [ 44.079536] vfs_write+0xe7/0x3b0 # [ 44.089746] ksys_write+0x68/0xf0 # [ 44.099952] do_syscall_64+0x30/0x40 # [ 44.110452] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 44.116404] RIP: 0033:0x7f3caf67e473 # [ 44.126897] 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 # [ 44.148177] RSP: 002b:00007ffcc39688e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 44.163135] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f3caf67e473 # [ 44.171405] RDX: 0000000000000017 RSI: 00007f3caf572000 RDI: 0000000000000001 # [ 44.185870] RBP: 00007f3caf572000 R08: 00007f3caf571010 R09: 0000000000000000 # [ 44.194137] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 44.208610] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 44.216879] irq event stamp: 0 # [ 44.226784] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 44.234079] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 44.249717] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 44.259147] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 44.272648] ---[ end trace 4d2843ad41e5ef0a ]--- # [ 44.278096] 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 # [ 44.388386] lkdtm: Performing direct entry REFCOUNT_DEC_SATURATED # [ 44.396977] lkdtm: attempting bad refcount_dec() from saturated # [ 44.410103] ------------[ cut here ]------------ # [ 44.421763] refcount_t: decrement hit 0; leaking memory. # [ 44.434221] WARNING: CPU: 1 PID: 2393 at lib/refcount.c:31 refcount_warn_saturate+0xfb/0x110 # [ 44.450145] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 44.509105] CPU: 1 PID: 2393 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 44.524266] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 44.537582] RIP: 0010:refcount_warn_saturate+0xfb/0x110 # [ 44.549926] Code: a0 d3 2d 89 c6 05 b5 fc 16 02 01 e8 d9 f2 c5 00 0f 0b c3 cc cc cc cc 48 c7 c7 70 d3 2d 89 c6 05 9c fc 16 02 01 e8 bf f2 c5 00 <0f> 0b c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 8b # [ 44.577421] RSP: 0018:ffffac7e02e67e48 EFLAGS: 00010286 # [ 44.589764] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 0000000000000000 # [ 44.604244] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 44.618721] RBP: ffffffff89382784 R08: 0000000000000000 R09: 0000000000000000 # [ 44.633201] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 44.647682] R13: ffffac7e02e67f10 R14: ffffac7e02e67f10 R15: ffff90a845b00000 # [ 44.662164] FS: 00007fab42991580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 44.677715] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 44.690641] CR2: 00007fab4279b000 CR3: 0000000103456002 CR4: 00000000003706e0 # [ 44.698907] Call Trace: # [ 44.708171] ? __warn+0x80/0x110 # [ 44.718293] ? refcount_warn_saturate+0xfb/0x110 # [ 44.729936] ? report_bug+0x9e/0xc0 # [ 44.740365] ? handle_bug+0x41/0x90 # [ 44.750764] ? exc_invalid_op+0x14/0x70 # [ 44.755363] ? asm_exc_invalid_op+0x12/0x20 # [ 44.766534] ? refcount_warn_saturate+0xfb/0x110 # [ 44.778197] ? refcount_warn_saturate+0xfb/0x110 # [ 44.783647] lkdtm_REFCOUNT_DEC_SATURATED+0x37/0x5f # [ 44.795596] direct_entry.cold+0x2c/0x38 # [ 44.806484] full_proxy_write+0x53/0x80 # [ 44.817275] vfs_write+0xe7/0x3b0 # [ 44.827481] ksys_write+0x68/0xf0 # [ 44.831498] do_syscall_64+0x30/0x40 # [ 44.841988] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 44.847925] RIP: 0033:0x7fab428a7473 # [ 44.858418] 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 # [ 44.879698] RSP: 002b:00007ffe7c9246c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 44.894657] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fab428a7473 # [ 44.902922] RDX: 0000000000000017 RSI: 00007fab4279b000 RDI: 0000000000000001 # [ 44.917410] RBP: 00007fab4279b000 R08: 00007fab4279a010 R09: 0000000000000000 # [ 44.931888] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 44.940154] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 44.954654] irq event stamp: 0 # [ 44.964549] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 44.971844] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 44.987484] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 44.996914] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 45.010417] ---[ end trace 4d2843ad41e5ef0b ]--- # [ 45.015867] 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 # [ 45.309150] lkdtm: Performing direct entry REFCOUNT_ADD_SATURATED # [ 45.319019] lkdtm: attempting bad refcount_dec() from saturated # [ 45.332136] ------------[ cut here ]------------ # [ 45.343797] refcount_t: saturated; leaking memory. # [ 45.355669] WARNING: CPU: 1 PID: 2429 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110 # [ 45.371592] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 45.430564] CPU: 1 PID: 2429 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 45.445719] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 45.459031] RIP: 0010:refcount_warn_saturate+0x51/0x110 # [ 45.471375] Code: 84 bc 00 00 00 c3 cc cc cc cc 85 f6 74 46 80 3d 59 fd 16 02 00 75 ee 48 c7 c7 f0 d2 2d 89 c6 05 49 fd 16 02 01 e8 69 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d 35 fd 16 02 00 75 cb 48 c7 c7 18 d3 2d # [ 45.498868] RSP: 0018:ffffac7e02f17e48 EFLAGS: 00010286 # [ 45.511212] RAX: 0000000000000000 RBX: 0000000000000037 RCX: 0000000000000000 # [ 45.525692] RDX: ffff90a8bacac620 RSI: ffff90a8bac9bf50 RDI: ffff90a8bac9bf50 # [ 45.540173] RBP: ffffffff8938279b R08: 0000000000000000 R09: 0000000000000000 # [ 45.554651] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000017 # [ 45.569132] R13: ffffac7e02f17f10 R14: ffffac7e02f17f10 R15: ffff90a842995000 # [ 45.583612] FS: 00007fef6ecfe580(0000) GS:ffff90a8bac80000(0000) knlGS:0000000000000000 # [ 45.599162] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 45.612090] CR2: 00007fef6eb08000 CR3: 00000001035ec006 CR4: 00000000003706e0 # [ 45.626571] Call Trace: # [ 45.635812] ? __warn+0x80/0x110 # [ 45.645919] ? refcount_warn_saturate+0x51/0x110 # [ 45.657585] ? report_bug+0x9e/0xc0 # [ 45.667989] ? handle_bug+0x41/0x90 # [ 45.678389] ? exc_invalid_op+0x14/0x70 # [ 45.689178] ? asm_exc_invalid_op+0x12/0x20 # [ 45.700370] ? refcount_warn_saturate+0x51/0x110 # [ 45.712031] ? refcount_warn_saturate+0x51/0x110 # [ 45.723696] lkdtm_REFCOUNT_ADD_SATURATED+0x3c/0x64 # [ 45.735651] direct_entry.cold+0x2c/0x38 # [ 45.746540] full_proxy_write+0x53/0x80 # [ 45.757330] vfs_write+0xe7/0x3b0 # [ 45.767535] ksys_write+0x68/0xf0 # [ 45.777742] do_syscall_64+0x30/0x40 # [ 45.788238] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 45.800388] RIP: 0033:0x7fef6ec14473 # [ 45.810884] 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 # [ 45.838377] RSP: 002b:00007ffd4afdff38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 45.853363] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fef6ec14473 # [ 45.867843] RDX: 0000000000000017 RSI: 00007fef6eb08000 RDI: 0000000000000001 # [ 45.882323] RBP: 00007fef6eb08000 R08: 00007fef6eb07010 R09: 0000000000000000 # [ 45.896801] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 45.905067] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 45.919547] irq event stamp: 0 # [ 45.929459] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 45.942969] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 45.958615] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 45.974262] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 45.987772] ---[ end trace 4d2843ad41e5ef0c ]--- # [ 45.999436] 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 # [ 46.116474] lkdtm: Performing direct entry REFCOUNT_INC_NOT_ZERO_SATURATED # [ 46.125401] lkdtm: attempting bad refcount_inc_not_zero() from saturated # [ 46.133190] ------------[ cut here ]------------ # [ 46.138651] refcount_t: saturated; leaking memory. # [ 46.144314] WARNING: CPU: 2 PID: 2462 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 46.154067] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 46.213066] CPU: 2 PID: 2462 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 46.222039] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 46.229138] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 46.235266] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d # [ 46.256542] RSP: 0018:ffffac7e02f7fe38 EFLAGS: 00010282 # [ 46.262670] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 # [ 46.270932] RDX: ffff90a8bad2c620 RSI: ffff90a8bad1bf50 RDI: ffff90a8bad1bf50 # [ 46.279195] RBP: ffffffff893823c8 R08: 0000000000000000 R09: 0000000000000000 # [ 46.287457] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 46.295720] R13: ffffac7e02f7ff10 R14: ffffac7e02f7ff10 R15: ffff90a840e5b000 # [ 46.303983] FS: 00007ffab2d42580(0000) GS:ffff90a8bad00000(0000) knlGS:0000000000000000 # [ 46.313315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 46.320023] CR2: 00007ffab2b4c000 CR3: 000000010363c006 CR4: 00000000003706e0 # [ 46.328288] Call Trace: # [ 46.331312] ? __warn+0x80/0x110 # [ 46.335233] ? refcount_warn_saturate+0x97/0x110 # [ 46.340682] ? report_bug+0x9e/0xc0 # [ 46.344871] ? handle_bug+0x41/0x90 # [ 46.349081] ? exc_invalid_op+0x14/0x70 # [ 46.353655] ? asm_exc_invalid_op+0x12/0x20 # [ 46.358619] ? refcount_warn_saturate+0x97/0x110 # [ 46.364066] ? refcount_warn_saturate+0x97/0x110 # [ 46.369514] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 46.375932] lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED+0x3e/0x76 # [ 46.382544] direct_entry.cold+0x2c/0x38 # [ 46.387216] full_proxy_write+0x53/0x80 # [ 46.391814] vfs_write+0xe7/0x3b0 # [ 46.395834] ksys_write+0x68/0xf0 # [ 46.406039] do_syscall_64+0x30/0x40 # [ 46.410364] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 46.422512] RIP: 0033:0x7ffab2c58473 # [ 46.426794] Code: 8b 15 21 2a 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 # [ 46.448093] RSP: 002b:00007ffe15ba7b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 46.456855] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007ffab2c58473 # [ 46.471328] RDX: 0000000000000020 RSI: 00007ffab2b4c000 RDI: 0000000000000001 # [ 46.479591] RBP: 00007ffab2b4c000 R08: 00007ffab2b4b010 R09: 0000000000000000 # [ 46.487853] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 46.496107] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 46.504375] irq event stamp: 0 # [ 46.508079] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 46.515373] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 46.524803] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 46.534231] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 46.541524] ---[ end trace 4d2843ad41e5ef0d ]--- # [ 46.546971] 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 # [ 46.891654] lkdtm: Performing direct entry REFCOUNT_ADD_NOT_ZERO_SATURATED # [ 46.903167] lkdtm: attempting bad refcount_add_not_zero() from saturated # [ 46.917163] ------------[ cut here ]------------ # [ 46.928828] refcount_t: saturated; leaking memory. # [ 46.940728] WARNING: CPU: 0 PID: 2495 at lib/refcount.c:19 refcount_warn_saturate+0x97/0x110 # [ 46.956653] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 47.015641] CPU: 0 PID: 2495 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 47.030784] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 47.044139] RIP: 0010:refcount_warn_saturate+0x97/0x110 # [ 47.056469] Code: 02 01 e8 46 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d 14 fd 16 02 00 75 a8 48 c7 c7 f0 d2 2d 89 c6 05 04 fd 16 02 01 e8 23 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d # [ 47.083999] RSP: 0018:ffffac7e03007e38 EFLAGS: 00010282 # [ 47.096369] RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000000 # [ 47.110837] RDX: ffff90a8bac2c620 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 # [ 47.119142] RBP: ffffffff893823e8 R08: 0000000000000000 R09: 0000000000000000 # [ 47.133582] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 47.141879] R13: ffffac7e03007f10 R14: ffffac7e03007f10 R15: ffff90a8453a0000 # [ 47.156366] FS: 00007fb3090f6580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 47.171873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 47.184824] CR2: 00007fb308f00000 CR3: 000000010341c005 CR4: 00000000003706f0 # [ 47.199343] Call Trace: # [ 47.208566] ? __warn+0x80/0x110 # [ 47.218794] ? refcount_warn_saturate+0x97/0x110 # [ 47.230488] ? report_bug+0x9e/0xc0 # [ 47.240844] ? handle_bug+0x41/0x90 # [ 47.251254] ? exc_invalid_op+0x14/0x70 # [ 47.262054] ? asm_exc_invalid_op+0x12/0x20 # [ 47.273269] ? refcount_warn_saturate+0x97/0x110 # [ 47.284940] ? refcount_warn_saturate+0x97/0x110 # [ 47.296653] __refcount_add_not_zero.constprop.0+0x2a/0x35 # [ 47.309265] lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED+0x3e/0x76 # [ 47.322127] direct_entry.cold+0x2c/0x38 # [ 47.333007] full_proxy_write+0x53/0x80 # [ 47.343846] vfs_write+0xe7/0x3b0 # [ 47.354023] ksys_write+0x68/0xf0 # [ 47.364279] do_syscall_64+0x30/0x40 # [ 47.374751] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 47.386936] RIP: 0033:0x7fb30900c473 # [ 47.397443] 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 # [ 47.424940] RSP: 002b:00007fff37851de8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 47.439893] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fb30900c473 # [ 47.454381] RDX: 0000000000000020 RSI: 00007fb308f00000 RDI: 0000000000000001 # [ 47.468842] RBP: 00007fb308f00000 R08: 00007fb308eff010 R09: 0000000000000000 # [ 47.483367] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 47.497866] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 47.512356] irq event stamp: 0 # [ 47.522293] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 47.535789] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 47.551475] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 47.567107] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 47.580660] ---[ end trace 4d2843ad41e5ef0e ]--- # [ 47.592317] 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 # [ 47.716851] lkdtm: Performing direct entry REFCOUNT_DEC_AND_TEST_SATURATED # [ 47.730697] lkdtm: attempting bad refcount_dec_and_test() from saturated # [ 47.744721] ------------[ cut here ]------------ # [ 47.756365] refcount_t: underflow; use-after-free. # [ 47.768235] WARNING: CPU: 0 PID: 2531 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 47.784217] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 47.843130] CPU: 0 PID: 2531 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 47.858350] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 47.871636] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 47.884047] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 47.911473] RSP: 0018:ffffac7e0308fe40 EFLAGS: 00010286 # [ 47.923832] RAX: 0000000000000000 RBX: 000000000000003a RCX: 0000000000000000 # [ 47.938282] RDX: ffff90a8bac2c620 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 # [ 47.952754] RBP: ffffffff89382408 R08: 0000000000000000 R09: 0000000000000000 # [ 47.967239] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 47.981716] R13: ffffac7e0308ff10 R14: ffffac7e0308ff10 R15: ffff90a842d02000 # [ 47.996210] FS: 00007f575376e580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 48.011745] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 48.024689] CR2: 00007f5753578000 CR3: 000000010311c006 CR4: 00000000003706f0 # [ 48.039156] Call Trace: # [ 48.048414] ? __warn+0x80/0x110 # [ 48.058506] ? refcount_warn_saturate+0xba/0x110 # [ 48.070179] ? report_bug+0x9e/0xc0 # [ 48.080574] ? handle_bug+0x41/0x90 # [ 48.090986] ? exc_invalid_op+0x14/0x70 # [ 48.101766] ? asm_exc_invalid_op+0x12/0x20 # [ 48.112968] ? refcount_warn_saturate+0xba/0x110 # [ 48.124612] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 48.137266] lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED+0x3e/0x76 # [ 48.150080] direct_entry.cold+0x2c/0x38 # [ 48.160997] full_proxy_write+0x53/0x80 # [ 48.171771] vfs_write+0xe7/0x3b0 # [ 48.181991] ksys_write+0x68/0xf0 # [ 48.192183] do_syscall_64+0x30/0x40 # [ 48.202693] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 48.214827] RIP: 0033:0x7f5753684473 # [ 48.225329] 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 # [ 48.252817] RSP: 002b:00007ffdc4bd26b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 48.267765] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f5753684473 # [ 48.276037] RDX: 0000000000000020 RSI: 00007f5753578000 RDI: 0000000000000001 # [ 48.290524] RBP: 00007f5753578000 R08: 00007f5753577010 R09: 0000000000000000 # [ 48.304985] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 48.319503] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 48.334011] irq event stamp: 0 # [ 48.343920] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 48.357460] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 48.373120] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 48.388772] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 48.402298] ---[ end trace 4d2843ad41e5ef0f ]--- # [ 48.413968] 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 # [ 48.538626] lkdtm: Performing direct entry REFCOUNT_SUB_AND_TEST_SATURATED # [ 48.552376] lkdtm: attempting bad refcount_sub_and_test() from saturated # [ 48.566373] ------------[ cut here ]------------ # [ 48.578050] refcount_t: underflow; use-after-free. # [ 48.589960] WARNING: CPU: 0 PID: 2567 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 # [ 48.605840] Modules linked in: fuse ip_tables cros_ec_lid_angle cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio uvcvideo snd_soc_da7219 videobuf2_vmalloc videobuf2_memops cros_ec_sysfs videobuf2_v4l2 cros_ec_chardev cros_usbpd_charger cros_ec_debugfs cros_ec_sensorhub cros_usbpd_logger cros_ec_lightbar snd_soc_core gsmi x86_pkg_temp_thermal cros_ec_dev snd_compress videobuf2_common cros_usbpd_notify snd_pcm_dmaengine regmap_i2c cros_kbd_led_backlight i2c_hid chromeos_pstore coreboot_table # [ 48.664882] CPU: 0 PID: 2567 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 48.679979] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 48.693356] RIP: 0010:refcount_warn_saturate+0xba/0x110 # [ 48.705628] Code: 02 01 e8 23 f3 c5 00 0f 0b c3 cc cc cc cc 80 3d ee fc 16 02 00 75 85 48 c7 c7 48 d3 2d 89 c6 05 de fc 16 02 01 e8 00 f3 c5 00 <0f> 0b c3 cc cc cc cc 80 3d c9 fc 16 02 00 0f 85 5e ff ff ff 48 c7 # [ 48.733195] RSP: 0018:ffffac7e0311fe40 EFLAGS: 00010286 # [ 48.745467] RAX: 0000000000000000 RBX: 000000000000003b RCX: 0000000000000000 # [ 48.759970] RDX: ffff90a8bac2c620 RSI: ffff90a8bac1bf50 RDI: ffff90a8bac1bf50 # [ 48.774430] RBP: ffffffff89382428 R08: 0000000000000000 R09: 0000000000000000 # [ 48.788926] R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000020 # [ 48.803386] R13: ffffac7e0311ff10 R14: ffffac7e0311ff10 R15: ffff90a843419000 # [ 48.817884] FS: 00007fc5ddf12580(0000) GS:ffff90a8bac00000(0000) knlGS:0000000000000000 # [ 48.833440] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 # [ 48.846407] CR2: 00007fc5ddd1c000 CR3: 0000000102cee003 CR4: 00000000003706f0 # [ 48.860851] Call Trace: # [ 48.870119] ? __warn+0x80/0x110 # [ 48.880205] ? refcount_warn_saturate+0xba/0x110 # [ 48.891898] ? report_bug+0x9e/0xc0 # [ 48.902281] ? handle_bug+0x41/0x90 # [ 48.912703] ? exc_invalid_op+0x14/0x70 # [ 48.923474] ? asm_exc_invalid_op+0x12/0x20 # [ 48.934683] ? refcount_warn_saturate+0xba/0x110 # [ 48.946348] __refcount_sub_and_test.constprop.0+0x3c/0x50 # [ 48.958974] lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED+0x3e/0x76 # [ 48.971797] direct_entry.cold+0x2c/0x38 # [ 48.982691] full_proxy_write+0x53/0x80 # [ 48.993474] vfs_write+0xe7/0x3b0 # [ 49.003696] ksys_write+0x68/0xf0 # [ 49.013895] do_syscall_64+0x30/0x40 # [ 49.024428] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 49.036550] RIP: 0033:0x7fc5dde28473 # [ 49.047061] 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 # [ 49.074545] RSP: 002b:00007ffd219867a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 49.089526] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007fc5dde28473 # [ 49.103988] RDX: 0000000000000020 RSI: 00007fc5ddd1c000 RDI: 0000000000000001 # [ 49.118508] RBP: 00007fc5ddd1c000 R08: 00007fc5ddd1b010 R09: 0000000000000000 # [ 49.132962] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 49.147469] R13: 0000000000000001 R14: 0000000000020000 R15: 0000000000020000 # [ 49.161928] irq event stamp: 0 # [ 49.171871] hardirqs last enabled at (0): [<0000000000000000>] 0x0 # [ 49.185377] hardirqs last disabled at (0): [] copy_process+0x65c/0x20e0 # [ 49.201021] softirqs last enabled at (0): [] copy_process+0x65c/0x20e0 # [ 49.216640] softirqs last disabled at (0): [<0000000000000000>] 0x0 # [ 49.230148] ---[ end trace 4d2843ad41e5ef10 ]--- # [ 49.241805] 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 # [ 49.417276] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_TO # [ 49.428959] lkdtm: attempting good copy_to_user of correct size # [ 49.442124] 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 # [ 49.559215] lkdtm: Performing direct entry USERCOPY_HEAP_SIZE_FROM # [ 49.568159] lkdtm: attempting good copy_from_user of correct size # [ 49.581494] 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 # [ 49.698995] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_TO # [ 49.708039] lkdtm: attempting good copy_to_user inside whitelist # [ 49.721288] 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 # [ 49.837703] lkdtm: Performing direct entry USERCOPY_HEAP_WHITELIST_FROM # [ 49.847817] lkdtm: attempting good copy_from_user inside whitelist # [ 49.855032] 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 # [ 49.968176] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_TO # [ 49.981339] lkdtm: good_stack: ffffac7e034c7e20-ffffac7e034c7e40 # [ 49.988350] lkdtm: bad_stack : ffffac7e034c7da8-ffffac7e034c7dc8 # [ 50.001616] lkdtm: attempting good copy_to_user of local stack # [ 50.014647] 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 # [ 50.132888] lkdtm: Performing direct entry USERCOPY_STACK_FRAME_FROM # [ 50.140789] lkdtm: good_stack: ffffac7e0356fe20-ffffac7e0356fe40 # [ 50.147823] lkdtm: bad_stack : ffffac7e0356fda8-ffffac7e0356fdc8 # [ 50.154830] lkdtm: attempting good copy_from_user of local stack # [ 50.161841] 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 # [ 50.274104] lkdtm: Performing direct entry USERCOPY_STACK_BEYOND # [ 50.281648] lkdtm: good_stack: ffffac7e03607e20-ffffac7e03607e40 # [ 50.288682] lkdtm: bad_stack : ffffac7e03607ff8-ffffac7e03608018 # [ 50.295694] lkdtm: attempting good copy_to_user of local stack # [ 50.302532] lkdtm: attempting bad copy_to_user of distant stack # [ 50.309453] 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 # [ 50.421454] lkdtm: Performing direct entry USERCOPY_KERNEL # [ 50.433908] lkdtm: attempting good copy_to_user from kernel rodata: ffffffff88ef8810 # [ 50.449076] lkdtm: attempting bad copy_to_user from kernel text: ffffffff874e2c00 # [ 50.463920] 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 # [ 50.579630] lkdtm: Performing direct entry STACKLEAK_ERASING # [ 50.588283] lkdtm: checking unused part of the thread stack (15928 bytes)... # [ 50.602666] lkdtm: FAIL: the erased part is not found (checked 15928 bytes) # [ 50.616936] lkdtm: FAIL: the thread stack is NOT properly erased # [ 50.630191] CPU: 0 PID: 2943 Comm: cat Tainted: G D W 5.10.202-cip41 #1 # [ 50.645290] Hardware name: Google Rammus/Rammus, BIOS 09/04/2020 # [ 50.652375] Call Trace: # [ 50.655414] dump_stack+0x77/0x9b # [ 50.659412] lkdtm_STACKLEAK_ERASING+0x116/0x144 # [ 50.664858] direct_entry.cold+0x2c/0x38 # [ 50.669519] full_proxy_write+0x53/0x80 # [ 50.674097] vfs_write+0xe7/0x3b0 # [ 50.678086] ksys_write+0x68/0xf0 # [ 50.682068] do_syscall_64+0x30/0x40 # [ 50.686360] entry_SYSCALL_64_after_hwframe+0x62/0xc7 # [ 50.692291] RIP: 0033:0x7f8792d3c473 # [ 50.696568] 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 # [ 50.717840] RSP: 002b:00007fff97f63a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # [ 50.726588] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f8792d3c473 # [ 50.734850] RDX: 0000000000000012 RSI: 00007f8792c30000 RDI: 0000000000000001 # [ 50.743111] RBP: 00007f8792c30000 R08: 00007f8792c2f010 R09: 0000000000000000 # [ 50.751372] R10: fffffffffffffbc5 R11: 0000000000000246 R12: 0000000000000001 # [ 50.759633] 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 # [ 50.872778] lkdtm: Performing direct entry CFI_FORWARD_PROTO # [ 50.880195] lkdtm: Calling matched prototype ... # [ 50.885646] lkdtm: Calling mismatched prototype ... # [ 50.891420] 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 + set +x / #