{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98496","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.353Z","datePublished":"2026-10-18T15:16:27.545Z","dateUpdated":"2026-10-19T09:20:33.996Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:20:33.996Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/airoha/airoha_npu.c"],"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"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/airoha/airoha_npu.c"],"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"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/aca91d8fa0ecbc990ebf9a688c684dda78a43c00"},{"url":"https://git.kernel.org/stable/c/da9d42531f3a6dfea2e9c775b62a46185dbf280a"},{"url":"https://git.kernel.org/stable/c/4bdee8060d1e4581624e68fbd369b1afb14df4bc"}],"title":"net: airoha: npu: cancel wdt_work after releasing the WDT IRQ","x_generator":{"engine":"bippy-1.2.0"}}}}