{"schema":"threatline.record/2","record":{"id":"CVE-2026-97986","aliases":[],"summary":"virtio_input: stop callbacks before unregistering input device","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_input: stop callbacks before unregistering input device\n\nvirtinput_remove() unregisters the input device before resetting the\nvirtio device. virtinput_recv_events() drops vi->lock around input_event(),\nso clearing vi->ready does not stop a callback that passed the entry check.\nIt can still use vi->idev, requeue buffers and kick the queue.\n\nReset first, as virtinput_freeze() already does. With the preceding core\nchange, reset waits for callbacks before input_unregister_device() can\nfree vi->idev. Recheck vi->ready after taking the lock again: keep draining\ncompleted events so an input packet is not truncated, but stop requeueing\nbuffers and kicking the queue.\n\nWith evdev attached, input_unregister_handle() currently waits for an RCU\ngrace period, which also waits out IRQ callbacks. This masks the lifetime\nbug on PCI and MMIO, but does not protect sleepable callbacks on other\ntransports.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97986","source_modified_at":"2026-10-19T09:11:53.304Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"271c865161c57cfabca45b93eaa712b19da365bc","lessThan":"3ae729b1f8ab81d1244061872db2fb0ebb110d2a","status":"affected","versionType":"git"},{"version":"271c865161c57cfabca45b93eaa712b19da365bc","lessThan":"81073bca2062c916c818f2744fbab545a5c4982b","status":"affected","versionType":"git"},{"version":"271c865161c57cfabca45b93eaa712b19da365bc","lessThan":"8226aeee9b9a94cd699fbb51cb230feff46cfaf2","status":"affected","versionType":"git"},{"version":"271c865161c57cfabca45b93eaa712b19da365bc","lessThan":"a3ba86a270dd87460759214046dc7cbd409ac711","status":"affected","versionType":"git"},{"version":"271c865161c57cfabca45b93eaa712b19da365bc","lessThan":"5378f7945856a5ed88e6f9850bc7a68f54090135","status":"affected","versionType":"git"},{"version":"271c865161c57cfabca45b93eaa712b19da365bc","lessThan":"d7808b37da0a619cf1fa541c2384e783fecc2480","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97986","source_modified_at":"2026-10-19T09:11:53.304Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.1","status":"affected"},{"version":"0","lessThan":"4.1","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":"7.2.7","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-2026-97986","source_modified_at":"2026-10-19T09:11:53.304Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3ae729b1f8ab81d1244061872db2fb0ebb110d2a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97986","source_modified_at":"2026-10-19T09:11:53.304Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"81073bca2062c916c818f2744fbab545a5c4982b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97986","source_modified_at":"2026-10-19T09:11:53.304Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"8226aeee9b9a94cd699fbb51cb230feff46cfaf2","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97986","source_modified_at":"2026-10-19T09:11:53.304Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5378f7945856a5ed88e6f9850bc7a68f54090135","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00172,"percentile":0.06313,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:23:20.801Z","modified_at":"2026-10-19T09:11:53.304Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97986","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:11:53.304Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97986","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/3ae729b1f8ab81d1244061872db2fb0ebb110d2a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/81073bca2062c916c818f2744fbab545a5c4982b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/8226aeee9b9a94cd699fbb51cb230feff46cfaf2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a3ba86a270dd87460759214046dc7cbd409ac711"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5378f7945856a5ed88e6f9850bc7a68f54090135"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d7808b37da0a619cf1fa541c2384e783fecc2480"}],"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":"2026-10-19T09:11:53.304Z","content_hash":"8e872805cb4684d0dd88755787fe47051a1eaa24e61f831c7e702bdfd718e224"}}