{"schema":"threatline.record/2","record":{"id":"CVE-2026-98422","aliases":[],"summary":"wifi: mac80211: reset the AP_VLAN tailroom counter on ifdown","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: reset the AP_VLAN tailroom counter on ifdown\n\nOn ifup, AP_VLAN interfaces get crypto_tx_tailroom_needed_cnt from\nthe AP interface, but it's never decremented again unless the AP is\nalso brought down. Thus, bringing the same AP_VLAN up again will\nincrement the counter again and eventually hit the sanity check:\n\n  WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt !=\n               master->crypto_tx_tailroom_needed_cnt);\n\nReset it on ifdown to avoid that.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"b0b32d3f163d24ea7134380666193bf398e9dc0b","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"f6b34a7d64324faf28eedc0f8678b0f832f1cc36","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"304a874670a0b6ab5589a7f60b4af0251797b121","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"7775759e3cb35ef5a571b2d877c2a9b70a5d5f08","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"3d76b45e8432c0d75fcb9e90d92eaa3176898adf","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"4b54d01b48445b66c9e576de92b90a3a3ae7b34a","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"875835377d8d62c849b4eb03a7abfafa71d7668f","status":"affected","versionType":"git"},{"version":"f9dca80b98caac8b4bfb43a2edf1e9f877ccf322","lessThan":"4504f3960dc4501c73be9f99eabda2e26e9db41e","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","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":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","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":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","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-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"304a874670a0b6ab5589a7f60b4af0251797b121","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7775759e3cb35ef5a571b2d877c2a9b70a5d5f08","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3d76b45e8432c0d75fcb9e90d92eaa3176898adf","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4b54d01b48445b66c9e576de92b90a3a3ae7b34a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"875835377d8d62c849b4eb03a7abfafa71d7668f","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","source_modified_at":"2026-10-19T09:19:15.873Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4504f3960dc4501c73be9f99eabda2e26e9db41e","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.0022,"percentile":0.11867,"score_date":"2026-10-23"},"published_at":"2026-10-14T13:27:50.789Z","modified_at":"2026-10-19T09:19:15.873Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98422","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:19:15.873Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98422","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/b0b32d3f163d24ea7134380666193bf398e9dc0b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f6b34a7d64324faf28eedc0f8678b0f832f1cc36"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/304a874670a0b6ab5589a7f60b4af0251797b121"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7775759e3cb35ef5a571b2d877c2a9b70a5d5f08"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3d76b45e8432c0d75fcb9e90d92eaa3176898adf"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4b54d01b48445b66c9e576de92b90a3a3ae7b34a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/875835377d8d62c849b4eb03a7abfafa71d7668f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4504f3960dc4501c73be9f99eabda2e26e9db41e"}],"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":"2026-10-19T09:19:15.873Z","content_hash":"0496d1718b6d14e24318b20fd9082257bab557360d53d04bd27874870207a873"}}