CVE-2021-46951 (GCVE-0-2021-46951)
Vulnerability from cvelistv5
Published
2024-02-27 18:40
Modified
2025-05-04 07:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: tpm: efi: Use local variable for calculating final log size When tpm_read_log_efi is called multiple times, which happens when one loads and unloads a TPM2 driver multiple times, then the global variable efi_tpm_final_log_size will at some point become a negative number due to the subtraction of final_events_preboot_size occurring each time. Use a local variable to avoid this integer underflow. The following issue is now resolved: Mar 8 15:35:12 hibinst kernel: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 Mar 8 15:35:12 hibinst kernel: Workqueue: tpm-vtpm vtpm_proxy_work [tpm_vtpm_proxy] Mar 8 15:35:12 hibinst kernel: RIP: 0010:__memcpy+0x12/0x20 Mar 8 15:35:12 hibinst kernel: Code: 00 b8 01 00 00 00 85 d2 74 0a c7 05 44 7b ef 00 0f 00 00 00 c3 cc cc cc 66 66 90 66 90 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 <f3> 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4 Mar 8 15:35:12 hibinst kernel: RSP: 0018:ffff9ac4c0fcfde0 EFLAGS: 00010206 Mar 8 15:35:12 hibinst kernel: RAX: ffff88f878cefed5 RBX: ffff88f878ce9000 RCX: 1ffffffffffffe0f Mar 8 15:35:12 hibinst kernel: RDX: 0000000000000003 RSI: ffff9ac4c003bff9 RDI: ffff88f878cf0e4d Mar 8 15:35:12 hibinst kernel: RBP: ffff9ac4c003b000 R08: 0000000000001000 R09: 000000007e9d6073 Mar 8 15:35:12 hibinst kernel: R10: ffff9ac4c003b000 R11: ffff88f879ad3500 R12: 0000000000000ed5 Mar 8 15:35:12 hibinst kernel: R13: ffff88f878ce9760 R14: 0000000000000002 R15: ffff88f77de7f018 Mar 8 15:35:12 hibinst kernel: FS: 0000000000000000(0000) GS:ffff88f87bd00000(0000) knlGS:0000000000000000 Mar 8 15:35:12 hibinst kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 8 15:35:12 hibinst kernel: CR2: ffff9ac4c003c000 CR3: 00000001785a6004 CR4: 0000000000060ee0 Mar 8 15:35:12 hibinst kernel: Call Trace: Mar 8 15:35:12 hibinst kernel: tpm_read_log_efi+0x152/0x1a7 Mar 8 15:35:12 hibinst kernel: tpm_bios_log_setup+0xc8/0x1c0 Mar 8 15:35:12 hibinst kernel: tpm_chip_register+0x8f/0x260 Mar 8 15:35:12 hibinst kernel: vtpm_proxy_work+0x16/0x60 [tpm_vtpm_proxy] Mar 8 15:35:12 hibinst kernel: process_one_work+0x1b4/0x370 Mar 8 15:35:12 hibinst kernel: worker_thread+0x53/0x3e0 Mar 8 15:35:12 hibinst kernel: ? process_one_work+0x370/0x370
References
Impacted products
Vendor Product Version
Linux Linux Version: 166a2809d65b282272c474835ec22c882a39ca1b
Version: 166a2809d65b282272c474835ec22c882a39ca1b
Version: 166a2809d65b282272c474835ec22c882a39ca1b
Version: 166a2809d65b282272c474835ec22c882a39ca1b
Version: 166a2809d65b282272c474835ec22c882a39ca1b
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    "cveId": "CVE-2021-46951",
    "datePublished": "2024-02-27T18:40:34.757Z",
    "dateReserved": "2024-02-25T13:45:52.722Z",
    "dateUpdated": "2025-05-04T07:01:02.947Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-46951\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T19:04:06.470\",\"lastModified\":\"2024-11-21T06:35:00.820\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntpm: efi: Use local variable for calculating final log size\\n\\nWhen tpm_read_log_efi is called multiple times, which happens when\\none loads and unloads a TPM2 driver multiple times, then the global\\nvariable efi_tpm_final_log_size will at some point become a negative\\nnumber due to the subtraction of final_events_preboot_size occurring\\neach time. Use a local variable to avoid this integer underflow.\\n\\nThe following issue is now resolved:\\n\\nMar  8 15:35:12 hibinst kernel: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\\nMar  8 15:35:12 hibinst kernel: Workqueue: tpm-vtpm vtpm_proxy_work [tpm_vtpm_proxy]\\nMar  8 15:35:12 hibinst kernel: RIP: 0010:__memcpy+0x12/0x20\\nMar  8 15:35:12 hibinst kernel: Code: 00 b8 01 00 00 00 85 d2 74 0a c7 05 44 7b ef 00 0f 00 00 00 c3 cc cc cc 66 66 90 66 90 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 \u003cf3\u003e 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4\\nMar  8 15:35:12 hibinst kernel: RSP: 0018:ffff9ac4c0fcfde0 EFLAGS: 00010206\\nMar  8 15:35:12 hibinst kernel: RAX: ffff88f878cefed5 RBX: ffff88f878ce9000 RCX: 1ffffffffffffe0f\\nMar  8 15:35:12 hibinst kernel: RDX: 0000000000000003 RSI: ffff9ac4c003bff9 RDI: ffff88f878cf0e4d\\nMar  8 15:35:12 hibinst kernel: RBP: ffff9ac4c003b000 R08: 0000000000001000 R09: 000000007e9d6073\\nMar  8 15:35:12 hibinst kernel: R10: ffff9ac4c003b000 R11: ffff88f879ad3500 R12: 0000000000000ed5\\nMar  8 15:35:12 hibinst kernel: R13: ffff88f878ce9760 R14: 0000000000000002 R15: ffff88f77de7f018\\nMar  8 15:35:12 hibinst kernel: FS:  0000000000000000(0000) GS:ffff88f87bd00000(0000) knlGS:0000000000000000\\nMar  8 15:35:12 hibinst kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nMar  8 15:35:12 hibinst kernel: CR2: ffff9ac4c003c000 CR3: 00000001785a6004 CR4: 0000000000060ee0\\nMar  8 15:35:12 hibinst kernel: Call Trace:\\nMar  8 15:35:12 hibinst kernel: tpm_read_log_efi+0x152/0x1a7\\nMar  8 15:35:12 hibinst kernel: tpm_bios_log_setup+0xc8/0x1c0\\nMar  8 15:35:12 hibinst kernel: tpm_chip_register+0x8f/0x260\\nMar  8 15:35:12 hibinst kernel: vtpm_proxy_work+0x16/0x60 [tpm_vtpm_proxy]\\nMar  8 15:35:12 hibinst kernel: process_one_work+0x1b4/0x370\\nMar  8 15:35:12 hibinst kernel: worker_thread+0x53/0x3e0\\nMar  8 15:35:12 hibinst kernel: ? process_one_work+0x370/0x370\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: tpm: efi: use la variable local para calcular el tama\u00f1o del registro final Cuando se llama a tpm_read_log_efi varias veces, lo que sucede cuando uno carga y descarga un controlador TPM2 varias veces, entonces la variable global efi_tpm_final_log_size en alg\u00fan momento se convierte en un n\u00famero negativo debido a la resta de final_events_preboot_size que ocurre cada vez. Utilice una variable local para evitar este desbordamiento de enteros. El siguiente problema ahora est\u00e1 resuelto: 8 de marzo 15:35:12 kernel hibinst: Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS 0.0.0 06/02/2015 8 de marzo 15:35:12 kernel hibinst: Cola de trabajo: tpm-vtpm vtpm_proxy_work [tpm_vtpm_proxy] 8 de marzo 15:35:12 kernel de hibinst: RIP: 0010:__memcpy+0x12/0x20 8 de marzo 15:35:12 kernel de hibinst: C\u00f3digo: 00 b8 01 00 00 00 85 d2 74 0a c7 05 44 7b ef 00 0f 00 00 00 c3 cc cc cc 66 66 90 66 90 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07  48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4 8 de marzo 15:35:12 kernel de hibinst: RSP: 0018:ffff9ac4c0fcfde0 EFLAGS: 00010206 8 de marzo 15:35:12 kernel de hibinst: RAX: ffff88f878cefed5 RBX: ffff88f878ce9000 RCX: 1ff ffffffffffe0f 8 de marzo 15:35:12 kernel de hibinst: RDX: 0000000000000003 RSI: ffff9ac4c003bff9 RDI: ffff88f878cf0e4d 8 de marzo 15:35:12 kernel de hibinst: RBP: ffff9ac4c003b000 R08: 0000000000001000 R09: 000 000007e9d6073 8 de marzo 15:35:12 kernel hibinst: R10: ffff9ac4c003b000 R11: ffff88f879ad3500 R12: 0000000000000ed5 8 de marzo 15:35:12 kernel de hibinst: R13: ffff88f878ce9760 R14: 0000000000000002 R15: ffff88f77de7f018 8 de marzo 15:35:12 kernel de hibinst: FS: 0000000000000000(0000) GS:ffff8 8f87bd00000(0000) knlGS:0000000000000000 8 de marzo a las 15:35: 12 kernel de hibinst: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 8 de marzo 15:35:12 kernel de hibinst: CR2: ffff9ac4c003c000 CR3: 00000001785a6004 CR4: 0000000000060ee0 8 de marzo 15:35:12 kernel de hibinst: Seguimiento de llamadas: 8 de marzo 15:35:12 Hibinst Kernel: tpm_read_log_efi+0x152/0x1a7 mar 8 15:35:12 hibinst kernel: tpm_bios_log_setup+0xc8/0x1c0 mar 8 15:35:12 hibinst kernel: tpm_chip_register kernel de hibinst: vtpm_proxy_work+0x16/0x60 [tpm_vtpm_proxy] 8 de marzo 15:35:12 kernel de hibinst: Process_one_work+0x1b4/0x370 8 de marzo 15:35:12 kernel de hibinst: work_thread+0x53/0x3e0 8 de marzo 15:35:12 kernel de hibinst : ? proceso_un_trabajo+0x370/0x370\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-191\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.3.0\",\"versionEndExcluding\":\"5.4.118\",\"matchCriteriaId\":\"E2F9A2C0-AF4B-4AEB-8B7D-1654AAE2376E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5.0\",\"versionEndExcluding\":\"5.10.36\",\"matchCriteriaId\":\"C7148769-B830-4B8F-986F-E0C85A19FC7F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.0\",\"versionEndExcluding\":\"5.11.20\",\"matchCriteriaId\":\"EFB425F0-C28C-4B44-8B4C-AD512AA832DE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12.0\",\"versionEndExcluding\":\"5.12.3\",\"matchCriteriaId\":\"C3814FA3-8141-4313-A852-8C4212BE12AD\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2f12258b5224cfaa808c54fd29345f3c1cbfca76\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3818b753277f5ca0c170bf5b98e0a5a225542fcb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/48cff270b037022e37835d93361646205ca25101\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/60a01ecc9f68067e4314a0b55148e39e5d58a51b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac07c557ca12ec9276c0375517bac7ae5be4e50c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2f12258b5224cfaa808c54fd29345f3c1cbfca76\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3818b753277f5ca0c170bf5b98e0a5a225542fcb\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/48cff270b037022e37835d93361646205ca25101\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/60a01ecc9f68067e4314a0b55148e39e5d58a51b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac07c557ca12ec9276c0375517bac7ae5be4e50c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2f12258b5224cfaa808c54fd29345f3c1cbfca76\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/60a01ecc9f68067e4314a0b55148e39e5d58a51b\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/3818b753277f5ca0c170bf5b98e0a5a225542fcb\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/ac07c557ca12ec9276c0375517bac7ae5be4e50c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/48cff270b037022e37835d93361646205ca25101\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:17:43.102Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-46951\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-05T20:13:25.298982Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-05T15:20:41.341Z\"}}], \"cna\": {\"title\": \"tpm: efi: Use local variable for calculating final log size\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"166a2809d65b282272c474835ec22c882a39ca1b\", \"lessThan\": \"2f12258b5224cfaa808c54fd29345f3c1cbfca76\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"166a2809d65b282272c474835ec22c882a39ca1b\", \"lessThan\": \"60a01ecc9f68067e4314a0b55148e39e5d58a51b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"166a2809d65b282272c474835ec22c882a39ca1b\", \"lessThan\": \"3818b753277f5ca0c170bf5b98e0a5a225542fcb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"166a2809d65b282272c474835ec22c882a39ca1b\", \"lessThan\": \"ac07c557ca12ec9276c0375517bac7ae5be4e50c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"166a2809d65b282272c474835ec22c882a39ca1b\", \"lessThan\": \"48cff270b037022e37835d93361646205ca25101\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/char/tpm/eventlog/efi.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.118\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.36\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.11.20\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.11.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/char/tpm/eventlog/efi.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2f12258b5224cfaa808c54fd29345f3c1cbfca76\"}, {\"url\": \"https://git.kernel.org/stable/c/60a01ecc9f68067e4314a0b55148e39e5d58a51b\"}, {\"url\": \"https://git.kernel.org/stable/c/3818b753277f5ca0c170bf5b98e0a5a225542fcb\"}, {\"url\": \"https://git.kernel.org/stable/c/ac07c557ca12ec9276c0375517bac7ae5be4e50c\"}, {\"url\": \"https://git.kernel.org/stable/c/48cff270b037022e37835d93361646205ca25101\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntpm: efi: Use local variable for calculating final log size\\n\\nWhen tpm_read_log_efi is called multiple times, which happens when\\none loads and unloads a TPM2 driver multiple times, then the global\\nvariable efi_tpm_final_log_size will at some point become a negative\\nnumber due to the subtraction of final_events_preboot_size occurring\\neach time. Use a local variable to avoid this integer underflow.\\n\\nThe following issue is now resolved:\\n\\nMar  8 15:35:12 hibinst kernel: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\\nMar  8 15:35:12 hibinst kernel: Workqueue: tpm-vtpm vtpm_proxy_work [tpm_vtpm_proxy]\\nMar  8 15:35:12 hibinst kernel: RIP: 0010:__memcpy+0x12/0x20\\nMar  8 15:35:12 hibinst kernel: Code: 00 b8 01 00 00 00 85 d2 74 0a c7 05 44 7b ef 00 0f 00 00 00 c3 cc cc cc 66 66 90 66 90 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 \u003cf3\u003e 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4\\nMar  8 15:35:12 hibinst kernel: RSP: 0018:ffff9ac4c0fcfde0 EFLAGS: 00010206\\nMar  8 15:35:12 hibinst kernel: RAX: ffff88f878cefed5 RBX: ffff88f878ce9000 RCX: 1ffffffffffffe0f\\nMar  8 15:35:12 hibinst kernel: RDX: 0000000000000003 RSI: ffff9ac4c003bff9 RDI: ffff88f878cf0e4d\\nMar  8 15:35:12 hibinst kernel: RBP: ffff9ac4c003b000 R08: 0000000000001000 R09: 000000007e9d6073\\nMar  8 15:35:12 hibinst kernel: R10: ffff9ac4c003b000 R11: ffff88f879ad3500 R12: 0000000000000ed5\\nMar  8 15:35:12 hibinst kernel: R13: ffff88f878ce9760 R14: 0000000000000002 R15: ffff88f77de7f018\\nMar  8 15:35:12 hibinst kernel: FS:  0000000000000000(0000) GS:ffff88f87bd00000(0000) knlGS:0000000000000000\\nMar  8 15:35:12 hibinst kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nMar  8 15:35:12 hibinst kernel: CR2: ffff9ac4c003c000 CR3: 00000001785a6004 CR4: 0000000000060ee0\\nMar  8 15:35:12 hibinst kernel: Call Trace:\\nMar  8 15:35:12 hibinst kernel: tpm_read_log_efi+0x152/0x1a7\\nMar  8 15:35:12 hibinst kernel: tpm_bios_log_setup+0xc8/0x1c0\\nMar  8 15:35:12 hibinst kernel: tpm_chip_register+0x8f/0x260\\nMar  8 15:35:12 hibinst kernel: vtpm_proxy_work+0x16/0x60 [tpm_vtpm_proxy]\\nMar  8 15:35:12 hibinst kernel: process_one_work+0x1b4/0x370\\nMar  8 15:35:12 hibinst kernel: worker_thread+0x53/0x3e0\\nMar  8 15:35:12 hibinst kernel: ? process_one_work+0x370/0x370\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.118\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.36\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.11.20\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.3\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:01:02.947Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-46951\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:01:02.947Z\", \"dateReserved\": \"2024-02-25T13:45:52.722Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-27T18:40:34.757Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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