{"schema":"threatline.record/2","record":{"id":"CVE-2026-98446","aliases":[],"summary":"xfs: don't let hidden_space go negative in xfs_metafile_resv_init","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't let hidden_space go negative in xfs_metafile_resv_init\n\nLOLLM points out that if the amount of fdblocks that we can reserve for\na metadata btree file goes below the space already used by that file,\nthen the hidden_space subtraction can underflow, causing\nxfs_dec_fdblocks to subtract a huge amount of space.  We never want the\ntarget to be less than the used sapce, so fix the logic that adjusts\ndblocks_avail downwards.\n\nAlso fix an error in the adjacent comment.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98446","source_modified_at":"2026-10-19T09:19:41.777Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"1df8d75030b787a9fae270b59b93eef809dd2011","lessThan":"930a9c1c321efdaa3e7f8caecb0479cee3baf342","status":"affected","versionType":"git"},{"version":"1df8d75030b787a9fae270b59b93eef809dd2011","lessThan":"f0d8352a39f4a2e329ae45b71bb0d49e2ca0a6dc","status":"affected","versionType":"git"},{"version":"1df8d75030b787a9fae270b59b93eef809dd2011","lessThan":"476582d754cdc5110f806001417fea6c77824c13","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98446","source_modified_at":"2026-10-19T09:19:41.777Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.15","status":"affected"},{"version":"0","lessThan":"6.15","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","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-2026-98446","source_modified_at":"2026-10-19T09:19:41.777Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"930a9c1c321efdaa3e7f8caecb0479cee3baf342","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98446","source_modified_at":"2026-10-19T09:19:41.777Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"476582d754cdc5110f806001417fea6c77824c13","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06447,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:14:56.724Z","modified_at":"2026-10-19T09:19:41.777Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98446","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:19:41.777Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98446","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/930a9c1c321efdaa3e7f8caecb0479cee3baf342"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f0d8352a39f4a2e329ae45b71bb0d49e2ca0a6dc"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/476582d754cdc5110f806001417fea6c77824c13"}],"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":"2026-10-19T09:19:41.777Z","content_hash":"4fb2cccb9bee4b6843838104671ab272c94b1101bd943b56c5c59b0dcabacab5"}}