{"schema":"threatline.record/2","record":{"id":"CVE-2026-97441","aliases":[],"summary":"ata: ahci: fail probe if BAR too small for claimed ports","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nata: ahci: fail probe if BAR too small for claimed ports\n\nWhen an AHCI controller is disabled in BIOS, its HOST_CAP register may\ncontain a bogus value, e.g. 0xFFFFFFFF.\n\nSince CAP.NP (Number of Ports) is a zeroes based 5-bit register field,\na value of 0x1f means 32 ports. If CAP.NP claims more ports than can\nphysically fit within the mapped BAR region, accessing port registers\nbeyond the BAR boundary causes a kernel panic.\n\nAdd validation in ahci_init_one() to check that the BAR size is\nsufficient for the number of ports claimed in CAP.NP. The check\ncalculates the required MMIO size as:\n\n  required_size = 0x100 (global registers) + max_ports * 0x80\n\nIf required_size exceeds the actual BAR size, the probe fails with\n-ENODEV, preventing the panic and providing a clear error message.\n\n[cassel: commit log]","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97441","source_modified_at":"2026-10-03T10:58:26.486Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"533a08ea11217100cec7a0ed903cb9b9c892d6f1","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c717b20100ef8cd06b5237af70ea2cb692e058ce","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"ff0ab535f8febbd32afa5832f8d2d9b06a8d5060","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"6d29b91164424256a759ddabc8f2de1ae09bd3f1","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"df262c828b616450eb351349e91c63447551bd01","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f2e291043c37a896d7f9797e25a356dceb030177","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c4086c6e1af757e1ff26fa2d2926b3ec0195de79","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97441","source_modified_at":"2026-10-03T10:58:26.486Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","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-2026-97441","source_modified_at":"2026-10-03T10:58:26.486Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"533a08ea11217100cec7a0ed903cb9b9c892d6f1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97441","source_modified_at":"2026-10-03T10:58:26.486Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"6d29b91164424256a759ddabc8f2de1ae09bd3f1","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06346,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:03:54.845Z","modified_at":"2026-10-03T10:58:26.486Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97441","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:58:26.486Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97441","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/533a08ea11217100cec7a0ed903cb9b9c892d6f1"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c717b20100ef8cd06b5237af70ea2cb692e058ce"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ff0ab535f8febbd32afa5832f8d2d9b06a8d5060"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6d29b91164424256a759ddabc8f2de1ae09bd3f1"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/df262c828b616450eb351349e91c63447551bd01"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f2e291043c37a896d7f9797e25a356dceb030177"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c4086c6e1af757e1ff26fa2d2926b3ec0195de79"}],"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":"2026-10-03T10:58:26.486Z","content_hash":"5637f5d8ffb860c354ad59e2f75510f2398c21a7f9594a043f9b5b4c247cd229"}}