CVE-2023-54317

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54317", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:44.531Z", "datePublished": "2025-12-30T12:23:47.232Z", "dateUpdated": "2026-10-15T21:41:44.644Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:19:12.880Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm flakey: don't corrupt the zero page\n\nWhen we need to zero some range on a block device, the function\n__blkdev_issue_zero_pages submits a write bio with the bio vector pointing\nto the zero page. If we use dm-flakey with corrupt bio writes option, it\nwill corrupt the content of the zero page which results in crashes of\nvarious userspace programs. Glibc assumes that memory returned by mmap is\nzeroed and it uses it for calloc implementation; if the newly mapped\nmemory is not zeroed, calloc will return non-zeroed memory.\n\nFix this bug by testing if the page is equal to ZERO_PAGE(0) and\navoiding the corruption in this case."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The corruption is triggered by local block-device I/O \u2014 a write/fallocate/BLKZEROOUT that reaches `__blkdev_issue_zero_pages()` through a dm-flakey device \u2014 with no network protocol involved. This matches the AV:L treatment of all other device-mapper/block-layer CVEs.\nAC:L - Given a flakey target configured with `corrupt_bio_byte ... w`, the write into ZERO_PAGE is fully deterministic: no race, no memory-layout dependency, and the attacker freely repeats I/O until the periodic down interval, which is observable and cycles on a fixed schedule.\nPR:L - While loading the dm table needs CAP_SYS_ADMIN, that is a pre-existing environmental configuration; the exploit step is ordinary filesystem I/O (fallocate/ZERO_RANGE, unwritten-extent zeroing) that any unprivileged user \u2014 or a container process on a flakey-backed volume \u2014 can issue, thereby corrupting memory shared with root processes.\nUI:N - The attacker's own I/O request drives the whole path; no victim action is needed, and the corrupted zero page then damages other processes passively as they fault in anonymous memory.\nS:U - The corruption stays within the kernel's own security authority; there is no hypervisor, IOMMU, or DMA boundary crossed, so standard kernel scoring applies.\nC:H - The bug destroys the system-wide guarantee that freshly mapped anonymous memory is zero, at an attacker-selected offset and value, so `calloc`-based buffers in every process (including privileged daemons) silently lose their zero terminators/sentinels and can be leveraged to read and disclose adjacent heap contents.\nI:H - An arbitrary byte value is written at an arbitrary offset into a page shared read-only by every process on the system, and because the same global page is the source for all subsequent `blkdev_issue_zeroout` fallbacks, non-zero garbage is also persisted to disk on unrelated, healthy block devices.\nA:H - The commit documents that the corrupted zero page causes crashes of various userspace programs via glibc's `calloc`, and the damage is permanent for the boot, producing system-wide instability across all users and services."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-flakey.c"], "versions": [{"version": "c6cd92fcabd6cc78bb1808c6a18245c842722fc1", "lessThan": "b7f8892f672222dbfcc721f51edc03963212b249", "status": "affected", "versionType": "git"}, {"version": "d4c637af2e56ee1ec66ee34d0ac5a13c75911aec", "lessThan": "98e311be44dbe31ad9c42aa067b2359bac451fda", "status": "affected", "versionType": "git"}, {"version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "3c4a56ef7c538d16c1738ba0ccea9e7146105b5a", "status": "affected", "versionType": "git"}, {"version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "f2b478228bfdd11e358c5bc197561331f5d5c394", "status": "affected", "versionType": "git"}, {"version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "ff60b2bb680ebcaf8890814dd51084a022891469", "status": "affected", "versionType": "git"}, {"version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "be360c83f2d810493c04f999d69ec9152981e0c0", "status": "affected", "versionType": "git"}, {"version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "63d31617883d64b43b0e2d529f0751f40713ecae", "status": "affected", "versionType": "git"}, {"version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "f50714b57aecb6b3dc81d578e295f86d9c73f078", "status": "affected", "versionType": "git"}, {"version": "1ed7c9f45fb893877ffa7cedd7aa61beaadbb328", "status": "affected", "versionType": "git"}, {"version": "4.14.158", "lessThan": "4.14.308", "status": "affected", "versionType": "semver"}, {"version": "4.19.88", "lessThan": "4.19.276", "status": "affected", "versionType": "semver"}, {"version": "4.9.206", "lessThan": "4.10", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", 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"original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.158", "versionEndExcluding": "4.14.308"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.88", "versionEndExcluding": "4.19.276"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.4.235"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.10.173"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.15.99"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": 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"https://git.kernel.org/stable/c/63d31617883d64b43b0e2d529f0751f40713ecae"}, {"url": "https://git.kernel.org/stable/c/f50714b57aecb6b3dc81d578e295f86d9c73f078"}], "title": "dm flakey: don't corrupt the zero page", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-54317", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:40:17.618804Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:41:44.644Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-54317", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:40:17.618804Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:40:18.251Z"}}], "cna": {"title": "dm flakey: don't corrupt the zero page", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The corruption is triggered by local block-device I/O \u2014 a write/fallocate/BLKZEROOUT that reaches `__blkdev_issue_zero_pages()` through a dm-flakey device \u2014 with no network protocol involved. This matches the AV:L treatment of all other device-mapper/block-layer CVEs.\nAC:L - Given a flakey target configured with `corrupt_bio_byte ... w`, the write into ZERO_PAGE is fully deterministic: no race, no memory-layout dependency, and the attacker freely repeats I/O until the periodic down interval, which is observable and cycles on a fixed schedule.\nPR:L - While loading the dm table needs CAP_SYS_ADMIN, that is a pre-existing environmental configuration; the exploit step is ordinary filesystem I/O (fallocate/ZERO_RANGE, unwritten-extent zeroing) that any unprivileged user \u2014 or a container process on a flakey-backed volume \u2014 can issue, thereby corrupting memory shared with root processes.\nUI:N - The attacker's own I/O request drives the whole path; no victim action is needed, and the corrupted zero page then damages other processes passively as they fault in anonymous memory.\nS:U - The corruption stays within the kernel's own security authority; there is no hypervisor, IOMMU, or DMA boundary crossed, so standard kernel scoring applies.\nC:H - The bug destroys the system-wide guarantee that freshly mapped anonymous memory is zero, at an attacker-selected offset and value, so `calloc`-based buffers in every process (including privileged daemons) silently lose their zero terminators/sentinels and can be leveraged to read and disclose adjacent heap contents.\nI:H - An arbitrary byte value is written at an arbitrary offset into a page shared read-only by every process on the system, and because the same global page is the source for all subsequent `blkdev_issue_zeroout` fallbacks, non-zero garbage is also persisted to disk on unrelated, healthy block devices.\nA:H - The commit documents that the corrupted zero page causes crashes of various userspace programs via glibc's `calloc`, and the damage is permanent for the boot, producing system-wide instability across all users and services."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "c6cd92fcabd6cc78bb1808c6a18245c842722fc1", "lessThan": "b7f8892f672222dbfcc721f51edc03963212b249", "versionType": "git"}, {"status": "affected", "version": "d4c637af2e56ee1ec66ee34d0ac5a13c75911aec", "lessThan": "98e311be44dbe31ad9c42aa067b2359bac451fda", "versionType": "git"}, {"status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "3c4a56ef7c538d16c1738ba0ccea9e7146105b5a", "versionType": "git"}, {"status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "f2b478228bfdd11e358c5bc197561331f5d5c394", "versionType": "git"}, {"status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "ff60b2bb680ebcaf8890814dd51084a022891469", "versionType": "git"}, {"status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "be360c83f2d810493c04f999d69ec9152981e0c0", "versionType": "git"}, {"status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "63d31617883d64b43b0e2d529f0751f40713ecae", "versionType": "git"}, {"status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "lessThan": "f50714b57aecb6b3dc81d578e295f86d9c73f078", "versionType": "git"}, {"status": "affected", "version": "1ed7c9f45fb893877ffa7cedd7aa61beaadbb328", "versionType": "git"}, {"status": "affected", "version": "4.14.158", "lessThan": "4.14.308", "versionType": "semver"}, {"status": "affected", "version": "4.19.88", "lessThan": "4.19.276", "versionType": "semver"}, {"status": "affected", "version": "4.9.206", "lessThan": "4.10", "versionType": "semver"}], "programFiles": ["drivers/md/dm-flakey.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"status": "unaffected", "version": "0", "lessThan": "5.0", "versionType": "semver"}, {"status": "unaffected", "version": "4.14.308", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.276", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.235", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.173", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.99", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.16", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.2.3", "versionType": "semver", "lessThanOrEqual": "6.2.*"}, {"status": "unaffected", "version": "6.3", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/md/dm-flakey.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b7f8892f672222dbfcc721f51edc03963212b249"}, {"url": "https://git.kernel.org/stable/c/98e311be44dbe31ad9c42aa067b2359bac451fda"}, {"url": "https://git.kernel.org/stable/c/3c4a56ef7c538d16c1738ba0ccea9e7146105b5a"}, {"url": "https://git.kernel.org/stable/c/f2b478228bfdd11e358c5bc197561331f5d5c394"}, {"url": "https://git.kernel.org/stable/c/ff60b2bb680ebcaf8890814dd51084a022891469"}, {"url": "https://git.kernel.org/stable/c/be360c83f2d810493c04f999d69ec9152981e0c0"}, {"url": "https://git.kernel.org/stable/c/63d31617883d64b43b0e2d529f0751f40713ecae"}, {"url": "https://git.kernel.org/stable/c/f50714b57aecb6b3dc81d578e295f86d9c73f078"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm flakey: don't corrupt the zero page\n\nWhen we need to zero some range on a block device, the function\n__blkdev_issue_zero_pages submits a write bio with the bio vector pointing\nto the zero page. If we use dm-flakey with corrupt bio writes option, it\nwill corrupt the content of the zero page which results in crashes of\nvarious userspace programs. Glibc assumes that memory returned by mmap is\nzeroed and it uses it for calloc implementation; if the newly mapped\nmemory is not zeroed, calloc will return non-zeroed memory.\n\nFix this bug by testing if the page is equal to ZERO_PAGE(0) and\navoiding the corruption in this case."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.14.308", "versionStartIncluding": "4.14.158"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.276", "versionStartIncluding": "4.19.88"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.235", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.173", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.99", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.16", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.2.3", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.3", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.9.206"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:19:12.880Z"}}}, "cveMetadata": {"cveId": "CVE-2023-54317", "state": "PUBLISHED", "dateUpdated": "2026-10-15T21:41:44.644Z", "dateReserved": "2025-12-30T12:06:44.531Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-12-30T12:23:47.232Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/dm-flakey.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "b7f8892f672222dbfcc721f51edc03963212b249", "status": "affected", "version": "c6cd92fcabd6cc78bb1808c6a18245c842722fc1", "versionType": "git"}, {"lessThan": "98e311be44dbe31ad9c42aa067b2359bac451fda", "status": "affected", "version": "d4c637af2e56ee1ec66ee34d0ac5a13c75911aec", "versionType": "git"}, {"lessThan": "3c4a56ef7c538d16c1738ba0ccea9e7146105b5a", "status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "versionType": "git"}, {"lessThan": "f2b478228bfdd11e358c5bc197561331f5d5c394", "status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "versionType": "git"}, {"lessThan": "ff60b2bb680ebcaf8890814dd51084a022891469", "status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "versionType": "git"}, {"lessThan": "be360c83f2d810493c04f999d69ec9152981e0c0", "status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "versionType": "git"}, {"lessThan": "63d31617883d64b43b0e2d529f0751f40713ecae", "status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "versionType": "git"}, {"lessThan": "f50714b57aecb6b3dc81d578e295f86d9c73f078", "status": "affected", "version": "a00f5276e26636cbf72f24f79831026d2e2868e7", "versionType": "git"}, {"status": "affected", "version": "1ed7c9f45fb893877ffa7cedd7aa61beaadbb328", "versionType": "git"}, {"lessThan": "4.14.308", "status": "affected", "version": "4.14.158", "versionType": "semver"}, {"lessThan": "4.19.276", "status": "affected", "version": "4.19.88", "versionType": "semver"}, {"lessThan": "4.10", "status": "affected", "version": "4.9.206", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/dm-flakey.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.308", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.276", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.235", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.173", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.99", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.16", "versionType": "semver"}, {"lessThanOrEqual": "6.2.*", "status": "unaffected", "version": "6.2.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm flakey: don't corrupt the zero page\n\nWhen we need to zero some range on a block device, the function\n__blkdev_issue_zero_pages submits a write bio with the bio vector pointing\nto the zero page. If we use dm-flakey with corrupt bio writes option, it\nwill corrupt the content of the zero page which results in crashes of\nvarious userspace programs. Glibc assumes that memory returned by mmap is\nzeroed and it uses it for calloc implementation; if the newly mapped\nmemory is not zeroed, calloc will return non-zeroed memory.\n\nFix this bug by testing if the page is equal to ZERO_PAGE(0) and\navoiding the corruption in this case."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndm flakey: no corromper la p\u00e1gina cero\n\nCuando necesitamos poner a cero un rango en un dispositivo de bloques, la funci\u00f3n __blkdev_issue_zero_pages env\u00eda un bio de escritura con el vector bio apuntando a la p\u00e1gina cero. Si usamos dm-flakey con la opci\u00f3n de escrituras bio corruptas, corromper\u00e1 el contenido de la p\u00e1gina cero, lo que resulta en fallos de varios programas de espacio de usuario. Glibc asume que la memoria devuelta por mmap est\u00e1 puesta a cero y la usa para la implementaci\u00f3n de calloc; si la memoria reci\u00e9n mapeada no est\u00e1 puesta a cero, calloc devolver\u00e1 memoria no puesta a cero.\n\nSoluciona este error probando si la p\u00e1gina es igual a ZERO_PAGE(0) y evitando la corrupci\u00f3n en este caso."}], "id": "CVE-2023-54317", "lastModified": "2026-10-15T22:17:58.093", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-54317", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:40:17.618804Z", "version": "2.0.3"}}]}, "published": "2025-12-30T13:16:20.973", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c4a56ef7c538d16c1738ba0ccea9e7146105b5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/63d31617883d64b43b0e2d529f0751f40713ecae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/98e311be44dbe31ad9c42aa067b2359bac451fda"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b7f8892f672222dbfcc721f51edc03963212b249"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be360c83f2d810493c04f999d69ec9152981e0c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2b478228bfdd11e358c5bc197561331f5d5c394"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f50714b57aecb6b3dc81d578e295f86d9c73f078"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ff60b2bb680ebcaf8890814dd51084a022891469"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: dm flakey: don't corrupt the zero page", "id": "2426017", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426017"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndm flakey: don't corrupt the zero page\nWhen we need to zero some range on a block device, the function\n__blkdev_issue_zero_pages submits a write bio with the bio vector pointing\nto the zero page. If we use dm-flakey with corrupt bio writes option, it\nwill corrupt the content of the zero page which results in crashes of\nvarious userspace programs. Glibc assumes that memory returned by mmap is\nzeroed and it uses it for calloc implementation; if the newly mapped\nmemory is not zeroed, calloc will return non-zeroed memory.\nFix this bug by testing if the page is equal to ZERO_PAGE(0) and\navoiding the corruption in this case."], "name": "CVE-2023-54317", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-54317\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54317\nhttps://lore.kernel.org/linux-cve-announce/2025123037-CVE-2023-54317-4750@gregkh/T"], "threat_severity": "Moderate"}

{}