{"schema":"threatline.record/2","record":{"id":"CVE-2026-98709","aliases":[],"summary":"wifi: mac80211: count only matching reservations in reserved switch","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: count only matching reservations in reserved switch\n\nieee80211_vif_use_reserved_switch() validates a replacement by counting\nassigned links on ctx->replace_ctx and treating reservations too\nbroadly. A link can still be assigned to the old channel context while\nholding a reservation that belongs to a different replacement\noperation.\n\nThat can make the current replacement appear complete too early. If\nanother link finalizes first, the function can free the\nWILL_BE_REPLACED chanctx while the unmatched link and driver still use\nit, leading to a use-after-free in later beacon generation.\n\nRequire an in-place reservation to point at the current replacement\ncontext, and require the reserved and assigned contexts to be the\nmatching replacement pair, before counting or moving the link.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98709","source_modified_at":"2026-10-21T12:55:58.274Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f","lessThan":"4ae6ed5b6074df5f3da05fd74c40bb24c5c9b41d","status":"affected","versionType":"git"},{"version":"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f","lessThan":"d31f655e44631891788ca67018ec5e1ed1c7de86","status":"affected","versionType":"git"},{"version":"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f","lessThan":"03525b632908b049f4d04cc8a71cdff2329589cf","status":"affected","versionType":"git"},{"version":"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f","lessThan":"5cc54a000960bc88f8c58940164dca0e601ab39c","status":"affected","versionType":"git"},{"version":"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f","lessThan":"437f3727b4fd715266c296435c116288f82666fd","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98709","source_modified_at":"2026-10-21T12:55:58.274Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"3.17","status":"affected"},{"version":"0","lessThan":"3.17","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-2026-98709","source_modified_at":"2026-10-21T12:55:58.274Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4ae6ed5b6074df5f3da05fd74c40bb24c5c9b41d","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98709","source_modified_at":"2026-10-21T12:55:58.274Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"03525b632908b049f4d04cc8a71cdff2329589cf","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98709","source_modified_at":"2026-10-21T12:55:58.274Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5cc54a000960bc88f8c58940164dca0e601ab39c","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98709","source_modified_at":"2026-10-21T12:55:58.274Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"437f3727b4fd715266c296435c116288f82666fd","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":"2026-10-18T15:46:39.290Z","modified_at":"2026-10-21T12:55:58.274Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98709","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:55:58.274Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98709","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/4ae6ed5b6074df5f3da05fd74c40bb24c5c9b41d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d31f655e44631891788ca67018ec5e1ed1c7de86"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/03525b632908b049f4d04cc8a71cdff2329589cf"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5cc54a000960bc88f8c58940164dca0e601ab39c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/437f3727b4fd715266c296435c116288f82666fd"}],"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":"2026-10-21T12:55:58.274Z","content_hash":"b25ee6d700263013491797e5b6044c56faa8828041970bece5d6a01781dfff0d"}}