{"schema":"threatline.record/2","record":{"id":"CVE-2026-98574","aliases":[],"summary":"net: bcmgenet: stop Tx NAPI before disabling the queues","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: stop Tx NAPI before disabling the queues\n\nbcmgenet_netif_stop() and the Wake-on-LAN branch of bcmgenet_suspend()\nboth disable the Tx queues first and stop Tx NAPI several steps later. A\ncompletion in flight calls netif_tx_wake_queue() in between, and nothing\nstops the queue again, so a transmit can reach the rings after they have\nbeen freed.\n\nClose is safe because dev_deactivate_many() stops the qdisc first.\nbcmgenet_suspend() does not, so stop Tx NAPI before the queues on both\npaths.\n\nKASAN on a Raspberry Pi CM4, driven from an MTU change because suspend\nfreezes user space before the callback runs:\n\n  BUG: KASAN: use-after-free in bcmgenet_xmit+0x17f8/0x2258\n  Write of size 8 at addr ffffff8055844a68 by task ksoftirqd/0/14\n   bcmgenet_xmit+0x17f8/0x2258\n   dev_hard_start_xmit+0x13c/0x588\n   sch_direct_xmit+0x108/0x340\n   __dev_queue_xmit+0x1190/0x3848","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98574","source_modified_at":"2026-10-19T09:21:59.645Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"254f3239dd070e469f45c3ca8b6ac38e47d6c730","lessThan":"63bcc2fee6419963e45e7c2cd698fa862409601d","status":"affected","versionType":"git"},{"version":"254f3239dd070e469f45c3ca8b6ac38e47d6c730","lessThan":"f329d42423089904758f2685cda295de9bf99441","status":"affected","versionType":"git"},{"version":"254f3239dd070e469f45c3ca8b6ac38e47d6c730","lessThan":"7e87508b5c4d81210d0a736ed01962e52f5c4c56","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98574","source_modified_at":"2026-10-19T09:21:59.645Z","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-2026-98574","source_modified_at":"2026-10-19T09:21:59.645Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"63bcc2fee6419963e45e7c2cd698fa862409601d","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98574","source_modified_at":"2026-10-19T09:21:59.645Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7e87508b5c4d81210d0a736ed01962e52f5c4c56","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09057,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:18:39.767Z","modified_at":"2026-10-19T09:21:59.645Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98574","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:21:59.645Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98574","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/63bcc2fee6419963e45e7c2cd698fa862409601d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f329d42423089904758f2685cda295de9bf99441"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7e87508b5c4d81210d0a736ed01962e52f5c4c56"}],"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":"2026-10-19T09:21:59.645Z","content_hash":"6acf478af0357792f234993f1b05faf9f6a024ee3454e8c727afccd61972f4de"}}