{"schema":"threatline.record/2","record":{"id":"CVE-2026-97551","aliases":[],"summary":"xfs: initialise args->total for parent pointer updates","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: initialise args->total for parent pointer updates\n\nxfs_parent_da_args_init() builds an xfs_da_args from a zeroed\nxfs_parent_args (kmem_cache_zalloc), leaving args->total == 0.\nxfs_da_grow_inode_int() treats that field as a running block reservation\nand subtracts from it; because it is an xfs_extlen_t (uint32_t), the\nfirst attr-fork growth wraps it to ~0U.  That defeats the free-space\ncheck in xfs_alloc_space_available(), and when it coincides with an AG\nthat has exactly zero available blocks the allocation is clamped to\nmaxlen 0 and returns -ENOSPC, which xfs_defer_finish_noroll() escalates\nto a filesystem shutdown.\n\nSet args->total the way the log recovery path does\n(xfs_attri_recover_work(), xfs_attr_item.c:706), in the add and replace\npaths that can grow the fork.  Removals and lookups never grow it, so\nthey leave the field alone, matching that switch.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97551","source_modified_at":"2026-10-19T09:09:14.354Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff","lessThan":"9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1","status":"affected","versionType":"git"},{"version":"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff","lessThan":"c66e138af626cad4210da449996ae9e07ee63add","status":"affected","versionType":"git"},{"version":"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff","lessThan":"ac9032882d673dd6679e1d873a2dc0131a1aeb43","status":"affected","versionType":"git"},{"version":"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff","lessThan":"8e4ebb6afaa34bd2e8ce52da231003d24111c2d6","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97551","source_modified_at":"2026-10-19T09:09:14.354Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97551","source_modified_at":"2026-10-19T09:09:14.354Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97551","source_modified_at":"2026-10-19T09:09:14.354Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"8e4ebb6afaa34bd2e8ce52da231003d24111c2d6","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.002,"percentile":0.0933,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:21:44.048Z","modified_at":"2026-10-19T09:09:14.354Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97551","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:09:14.354Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97551","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c66e138af626cad4210da449996ae9e07ee63add"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ac9032882d673dd6679e1d873a2dc0131a1aeb43"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/8e4ebb6afaa34bd2e8ce52da231003d24111c2d6"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:09:14.354Z","content_hash":"b1708e8e34c0f5e684e041238d1e739debffb34e27977bd746a8728f51c9e530"}}