{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23223", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.987Z", "datePublished": "2026-02-18T14:53:26.603Z", "dateUpdated": "2026-02-18T14:53:26.603Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-18T14:53:26.603Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix UAF in xchk_btree_check_block_owner\n\nWe cannot dereference bs->cur when trying to determine if bs->cur\naliases bs->sc->sa.{bno,rmap}_cur after the latter has been freed.\nFix this by sampling before type before any freeing could happen.\nThe correct temporal ordering was broken when we removed xfs_btnum_t."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/scrub/btree.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1d411278dda293a507cb794db7d9ed3511c685c6", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ed82e7949f5cac3058f4100f3cd670531d41a266", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ba5264610423d9653aa36920520902d83841bcfd", "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/xfs/scrub/btree.c"], "versions": [{"version": "6.12.72", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.11", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.1", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.72"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1d411278dda293a507cb794db7d9ed3511c685c6"}, {"url": "https://git.kernel.org/stable/c/ed82e7949f5cac3058f4100f3cd670531d41a266"}, {"url": "https://git.kernel.org/stable/c/ba5264610423d9653aa36920520902d83841bcfd"}], "title": "xfs: fix UAF in xchk_btree_check_block_owner", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix UAF in xchk_btree_check_block_owner\n\nWe cannot dereference bs->cur when trying to determine if bs->cur\naliases bs->sc->sa.{bno,rmap}_cur after the latter has been freed.\nFix this by sampling before type before any freeing could happen.\nThe correct temporal ordering was broken when we removed xfs_btnum_t."}], "id": "CVE-2026-23223", "lastModified": "2026-02-18T16:22:32.037", "metrics": {}, "published": "2026-02-18T16:22:32.037", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1d411278dda293a507cb794db7d9ed3511c685c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba5264610423d9653aa36920520902d83841bcfd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ed82e7949f5cac3058f4100f3cd670531d41a266"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}