{"schema":"threatline.record/2","record":{"id":"CVE-2026-97446","aliases":[],"summary":"ACPICA: Fix NULL pointer dereference in acpi_ns_custom_package()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Fix NULL pointer dereference in acpi_ns_custom_package()\n\nacpi_ns_custom_package() unconditionally dereferences the first element\nof the package to read the _BIX version number, without checking for\nNULL:\n\n    if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER)\n\nWhen firmware returns a _BIX package whose first element is an\nunresolvable reference, ACPICA evaluates that entry to NULL.\nacpi_ns_remove_null_elements() does not strip NULL entries for\nACPI_PTYPE_CUSTOM packages (fixed-position format would break if\nelements were shifted), so acpi_ns_custom_package() sees the NULL\nand causes a crash.\n\nAdd a NULL check for the first element (version field) before\ndereferencing it. The caller then receives AE_AML_OPERAND_TYPE\ninstead of crashing.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"fad537538cdfcdc51e41db61bbf9ebe5ed9427eb","status":"affected","versionType":"git"},{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"9936507ac0f2379787a2a805b11ab1cf0f241372","status":"affected","versionType":"git"},{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"644888605f55395e6012ed43e3ed643ef7ab5013","status":"affected","versionType":"git"},{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"08c5dee5da1d8d99b5a4e94db5a3d873c491771e","status":"affected","versionType":"git"},{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"3762c6c8ae5073892d7cec736cc54270c7c9ce90","status":"affected","versionType":"git"},{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"3cbf096a478f4fa03953f0685ad28c9c82ce67cb","status":"affected","versionType":"git"},{"version":"7952d40240855932de01bbe81c02bf1416ec91d8","lessThan":"f8d14b7bb0063bbbd86c0e4d73edb8cea7b362bc","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.7","status":"affected"},{"version":"0","lessThan":"4.7","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-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"9936507ac0f2379787a2a805b11ab1cf0f241372","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"644888605f55395e6012ed43e3ed643ef7ab5013","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"08c5dee5da1d8d99b5a4e94db5a3d873c491771e","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"3762c6c8ae5073892d7cec736cc54270c7c9ce90","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","source_modified_at":"2026-10-03T10:58:30.858Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"3cbf096a478f4fa03953f0685ad28c9c82ce67cb","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06337,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:04:01.612Z","modified_at":"2026-10-03T10:58:30.858Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97446","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:58:30.858Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97446","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/fad537538cdfcdc51e41db61bbf9ebe5ed9427eb"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9936507ac0f2379787a2a805b11ab1cf0f241372"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/644888605f55395e6012ed43e3ed643ef7ab5013"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/08c5dee5da1d8d99b5a4e94db5a3d873c491771e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3762c6c8ae5073892d7cec736cc54270c7c9ce90"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3cbf096a478f4fa03953f0685ad28c9c82ce67cb"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f8d14b7bb0063bbbd86c0e4d73edb8cea7b362bc"}],"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":"2026-10-03T10:58:30.858Z","content_hash":"d155e24967c3c05cea6ddd3563ef06f3c9acd6e53354fc03bb9a4b92c1912ef7"}}