{"schema":"threatline.record/2","record":{"id":"CVE-2026-93246","aliases":[],"summary":"octeontx2-af: fix out-of-bounds read setting MSI-X irq affinity","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: fix out-of-bounds read setting MSI-X irq affinity\n\nrvu_register_interrupts() walks every MSI-X vector and uses strstr()\nto match \"Mbox\" or \"FLR\" in irq_name before pinning those interrupts\nto CPU 0. irq_name is a per-vector NAME_SIZE buffer, but not every\nslot is populated before this loop runs. strstr() keeps scanning until\nit finds a NUL terminator, so an uninitialized slot can trigger a KASAN\nslab-out-of-bounds read at boot when debug options are enabled.\n\nUse strnstr() with NAME_SIZE to bound the search within each vector's\nname buffer.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93246","source_modified_at":"2026-10-19T09:07:58.955Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4e527f1e5c155ce28164ba34cad47b635d16f827","lessThan":"2f460aa0211e97c011ef0cfe5016f8f2a2ed059b","status":"affected","versionType":"git"},{"version":"4e527f1e5c155ce28164ba34cad47b635d16f827","lessThan":"4d5df98369c5f45710b786499f8bd7ffc3196433","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93246","source_modified_at":"2026-10-19T09:07:58.955Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"7.1","status":"affected"},{"version":"0","lessThan":"7.1","status":"unaffected","versionType":"semver"},{"version":"7.2.6","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-2026-93246","source_modified_at":"2026-10-19T09:07:58.955Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"2f460aa0211e97c011ef0cfe5016f8f2a2ed059b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93246","source_modified_at":"2026-10-19T09:07:58.955Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4d5df98369c5f45710b786499f8bd7ffc3196433","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00189,"percentile":0.08115,"score_date":"2026-10-23"},"published_at":"2026-09-24T15:51:03.587Z","modified_at":"2026-10-19T09:07:58.955Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93246","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:07:58.955Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93246","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/2f460aa0211e97c011ef0cfe5016f8f2a2ed059b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4d5df98369c5f45710b786499f8bd7ffc3196433"}],"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":"2026-10-19T09:07:58.955Z","content_hash":"b6d016d02a31ee03f9d3f2ca9f00bee627d7440e868b1659506e0474f99be29d"}}