{"schema":"threatline.record/2","record":{"id":"CVE-2026-98707","aliases":[],"summary":"wifi: mac80211: shut down RX BA session timer on teardown","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: shut down RX BA session timer on teardown\n\nTearing down an RX BA session can leave the session timer queued on a\nfreed tid_rx. Later timer-wheel processing and the timer callback itself\nthen run against freed memory.\n\nAn RX BAR handler can dereference tid_rx under RCU before teardown\nunpublishes it and stay in its read-side critical section while teardown\ndeletes the session timer. The stale handler can then rearm the timer\nafter timer_delete_sync() returns and before the RCU callback frees\ntid_rx.\n\nUse timer_shutdown_sync() so rearm attempts become ineffective once\nteardown starts. Keep reorder_timer unchanged: teardown marks the session\nremoved under reorder_lock and its release path checks that state before\nrearming. session_timer has no equivalent guard because\nieee80211_rx_h_ctrl() rearms it before taking reorder_lock.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98707","source_modified_at":"2026-10-21T12:55:56.087Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"a87f736d942c86255e3088c606f0e3eab6bbf784","lessThan":"d0da6ab1fc53a68025929baf0947519c6c1684dc","status":"affected","versionType":"git"},{"version":"a87f736d942c86255e3088c606f0e3eab6bbf784","lessThan":"7bb2a5bd4f07192fca35644fab7d49a17bfbc861","status":"affected","versionType":"git"},{"version":"a87f736d942c86255e3088c606f0e3eab6bbf784","lessThan":"481f9230284c27052b59c587069f232c5d84779e","status":"affected","versionType":"git"},{"version":"a87f736d942c86255e3088c606f0e3eab6bbf784","lessThan":"09b7d5e4f88504e62ddf4ff31ebeebb3b87578ba","status":"affected","versionType":"git"},{"version":"a87f736d942c86255e3088c606f0e3eab6bbf784","lessThan":"e588e83e5c7a0f6d7a77dbbb58927c8c8cfd598e","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98707","source_modified_at":"2026-10-21T12:55:56.087Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","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-2026-98707","source_modified_at":"2026-10-21T12:55:56.087Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7bb2a5bd4f07192fca35644fab7d49a17bfbc861","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98707","source_modified_at":"2026-10-21T12:55:56.087Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"481f9230284c27052b59c587069f232c5d84779e","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98707","source_modified_at":"2026-10-21T12:55:56.087Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"09b7d5e4f88504e62ddf4ff31ebeebb3b87578ba","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05719,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:46:37.587Z","modified_at":"2026-10-21T12:55:56.087Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98707","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:55:56.087Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98707","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/d0da6ab1fc53a68025929baf0947519c6c1684dc"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7bb2a5bd4f07192fca35644fab7d49a17bfbc861"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/481f9230284c27052b59c587069f232c5d84779e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/09b7d5e4f88504e62ddf4ff31ebeebb3b87578ba"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e588e83e5c7a0f6d7a77dbbb58927c8c8cfd598e"}],"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":"2026-10-21T12:55:56.087Z","content_hash":"b677720692a416e1406caa9ea5f6ce661e234ad367f5462a59533d15b0019a1b"}}