{"schema":"threatline.record/2","record":{"id":"CVE-2026-98496","aliases":[],"summary":"net: airoha: npu: cancel wdt_work after releasing the WDT IRQ","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: airoha: npu: cancel wdt_work after releasing the WDT IRQ\n\nairoha_npu_remove() calls cancel_work_sync() on each core's wdt_work,\nbut the watchdog IRQ that queues it is requested with devm_request_irq()\nand is freed only after .remove() returns.  airoha_npu_wdt_handler() can\ntherefore schedule_work() again once the cancel has returned.  struct\nairoha_npu, which contains the work, is devm_kzalloc()'d and is freed in\nthat same unwind, so the late work dereferences freed memory.\n\nRegister the work with devm_work_autocancel() before devm_request_irq()\nand drop .remove().  Devres runs in reverse order, so the IRQ is freed\nbefore cancel_work_sync(), including when probe fails.  A cancel left in\n.remove() cannot get that order.  Initializing the work first also stops\na pending watchdog interrupt from queuing an uninitialized work item.\nProbe currently calls INIT_WORK() only after devm_request_irq().\n\nThis issue was identified during our ongoing static-analysis research\nwhile reviewing kernel code.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98496","source_modified_at":"2026-10-19T09:20:33.996Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"23290c7bc190def4e1ca61610992d9b7c32e33f3","lessThan":"aca91d8fa0ecbc990ebf9a688c684dda78a43c00","status":"affected","versionType":"git"},{"version":"23290c7bc190def4e1ca61610992d9b7c32e33f3","lessThan":"da9d42531f3a6dfea2e9c775b62a46185dbf280a","status":"affected","versionType":"git"},{"version":"23290c7bc190def4e1ca61610992d9b7c32e33f3","lessThan":"4bdee8060d1e4581624e68fbd369b1afb14df4bc","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98496","source_modified_at":"2026-10-19T09:20:33.996Z","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-2026-98496","source_modified_at":"2026-10-19T09:20:33.996Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4bdee8060d1e4581624e68fbd369b1afb14df4bc","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09055,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:16:27.545Z","modified_at":"2026-10-19T09:20:33.996Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98496","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:20:33.996Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98496","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/aca91d8fa0ecbc990ebf9a688c684dda78a43c00"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/da9d42531f3a6dfea2e9c775b62a46185dbf280a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4bdee8060d1e4581624e68fbd369b1afb14df4bc"}],"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":"2026-10-19T09:20:33.996Z","content_hash":"252d9d480e2ce9744b836c4d97db2776a354cd36b7a3e671f183129d31cd14e8"}}