{"schema":"threatline.record/2","record":{"id":"CVE-2026-97521","aliases":[],"summary":"gfs2: fix quota init duplicate scan","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: fix quota init duplicate scan\n\ngfs2_quota_init() checks for duplicate quota_change IDs while holding\nqd_lock and the quota hash bucket bitlock. That path used\ngfs2_qd_search_bucket(), which takes a lockref reference via\nlockref_get_not_dead().\n\nOn PREEMPT_RT this may sleep, which is not allowed under the bucket\nbitlock, triggering \"sleeping function called from invalid context\".\n\nUse a no-ref bucket lookup in this path, then continue duplicate\nhandling without taking a lockref there.\n\nRefactor gfs2_qd_search_bucket() to build on top of the no-ref helper\nso lookup traversal stays in one place.\n\nThis patch fixes a bug reported by syzbot.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97521","source_modified_at":"2026-09-28T05:30:59.436Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"de0d95c26c41c1776e4d23b1a8b3f2bcfd1dae5f","lessThan":"7fdcf16e5e14e11028f5bcaa6d25075eb5e876a0","status":"affected","versionType":"git"},{"version":"de0d95c26c41c1776e4d23b1a8b3f2bcfd1dae5f","lessThan":"812a766e2b0a8f4d094393fad13475c57f5f86db","status":"affected","versionType":"git"},{"version":"de0d95c26c41c1776e4d23b1a8b3f2bcfd1dae5f","lessThan":"b99a1f0f18ee50445907f55069e88bcfd8947383","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97521","source_modified_at":"2026-09-28T05:30:59.436Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.11","status":"affected"},{"version":"0","lessThan":"6.11","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","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97521","source_modified_at":"2026-09-28T05:30:59.436Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"7fdcf16e5e14e11028f5bcaa6d25075eb5e876a0","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97521","source_modified_at":"2026-09-28T05:30:59.436Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"812a766e2b0a8f4d094393fad13475c57f5f86db","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00155,"percentile":0.04256,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:05:21.667Z","modified_at":"2026-09-28T05:30:59.436Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97521","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-28T05:30:59.436Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97521","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/7fdcf16e5e14e11028f5bcaa6d25075eb5e876a0"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/812a766e2b0a8f4d094393fad13475c57f5f86db"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/b99a1f0f18ee50445907f55069e88bcfd8947383"}],"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":"2026-09-28T05:30:59.436Z","content_hash":"83503ea7da69658d494b2c35d2aa2713104e8c0f7edc4eaac3fe9161df8c2fec"}}