{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52805", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.247Z", "datePublished": "2024-05-21T15:31:16.374Z", "dateUpdated": "2026-08-05T09:11:31.057Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:11:31.057Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix array-index-out-of-bounds in diAlloc\n\nCurrently there is not check against the agno of the iag while\nallocating new inodes to avoid fragmentation problem. Added the check\nwhich is required." } ], "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 bug is reached only after a local mount of an attacker-crafted JFS image, then a create path (open/creat → jfs_create → ialloc → diAlloc); fs/jfs has no network or adjacent-protocol entry point.\nAC:L - agstart is taken from on-disk IAG metadata into the parent inode, so a crafted image sets agno (including the syzbot index -1) deterministically; creating a regular file then hits db_active[agno]/AG_LOCK/im_agctl with no race or attacker-uncontrollable state.\nPR:L - As with sibling JFS crafted-image CVEs, an unprivileged local session user can attach the malicious image via udisks2/polkit/automount on desktops, kiosks, and shared workstations, then trigger diAlloc with ordinary file creation.\nUI:N - The attacker supplies the image, causes it to be mounted (including via automount/udisks on their own session), and drives file creation themselves; no separate victim action is required at exploitation time.\nS:U - Out-of-bounds indexing of in-kernel bmap/imap arrays corrupts host kernel memory only and does not cross a VM, IOMMU, or other separate security authority.\nC:H - Invalid agno causes out-of-bounds reads of db_active[] and adjacent kernel/imap state; under the memory-corruption guidance this is reasonably leveraged for high confidentiality impact.\nI:H - The same bad agno indexes im_aglock[] and im_agctl[], and later allocation paths write im_agctl[agno].numfree and related map state, yielding out-of-bounds kernel writes suitable for control-flow hijacking.\nA:H - Syzbot reported UBSAN array-index-out-of-bounds in diAlloc (panic under UBSAN_TRAP/panic_on_warn), and the OOB lock/agctl accesses also produce kernel oopses and filesystem failure." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/jfs/jfs_imap.c" ], "versions": [ { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "2308d0fb0dc32446b4e6ca37cd09c30374bb64e9", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "cf7e3e84df36a9953796c737f080712f631d7083", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "7467ca10a5ff09b0e87edf6c4d2a4bfdee69cf2c", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1ba7df5457dc1c1071c5f92ac11323533a6430e1", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "64f062baf202b82f54987a3f614a6c8f3e466641", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "8c68af2af697ba2ba3b138be0c6d72e2ce3a3d6d", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "665b44e55c2767a4f899c3b18f49e9e1c9983777", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1708d0a9917fea579cc9da3d87b154285abd2cd8", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "05d9ea1ceb62a55af6727a69269a4fd310edf483", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/jfs/jfs_imap.c" ], "versions": [ { "version": "2.6.12", "status": "affected" }, { "version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.331", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.300", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.262", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.202", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.140", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.64", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.14.331" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.19.300" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.4.262" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.202" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.5.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.6.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.7" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2308d0fb0dc32446b4e6ca37cd09c30374bb64e9" }, { "url": "https://git.kernel.org/stable/c/cf7e3e84df36a9953796c737f080712f631d7083" }, { "url": "https://git.kernel.org/stable/c/7467ca10a5ff09b0e87edf6c4d2a4bfdee69cf2c" }, { "url": "https://git.kernel.org/stable/c/1ba7df5457dc1c1071c5f92ac11323533a6430e1" }, { "url": "https://git.kernel.org/stable/c/64f062baf202b82f54987a3f614a6c8f3e466641" }, { "url": "https://git.kernel.org/stable/c/8c68af2af697ba2ba3b138be0c6d72e2ce3a3d6d" }, { "url": "https://git.kernel.org/stable/c/665b44e55c2767a4f899c3b18f49e9e1c9983777" }, { "url": "https://git.kernel.org/stable/c/1708d0a9917fea579cc9da3d87b154285abd2cd8" }, { "url": "https://git.kernel.org/stable/c/05d9ea1ceb62a55af6727a69269a4fd310edf483" } ], "title": "jfs: fix array-index-out-of-bounds in diAlloc", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-129", "lang": "en", "description": "CWE-129 Improper Validation of Array Index" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2025-10-01T19:18:27.367558Z", "id": "CVE-2023-52805", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:18:52.937Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.055Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/2308d0fb0dc32446b4e6ca37cd09c30374bb64e9", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/cf7e3e84df36a9953796c737f080712f631d7083", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7467ca10a5ff09b0e87edf6c4d2a4bfdee69cf2c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1ba7df5457dc1c1071c5f92ac11323533a6430e1", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/64f062baf202b82f54987a3f614a6c8f3e466641", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/8c68af2af697ba2ba3b138be0c6d72e2ce3a3d6d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/665b44e55c2767a4f899c3b18f49e9e1c9983777", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1708d0a9917fea579cc9da3d87b154285abd2cd8", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/05d9ea1ceb62a55af6727a69269a4fd310edf483", "tags": [ "x_transferred" ] } ] } ] } }