{"schema":"threatline.record/2","record":{"id":"CVE-2026-98340","aliases":[],"summary":"wifi: cfg80211: only group hidden BSSes with beacon entries","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: only group hidden BSSes with beacon entries\n\nWhen a probe response for an unknown BSS comes in, __cfg80211_bss_update()\nlooks for an existing entry with the same BSSID and a hidden (zero-length\nor NUL-filled) SSID, and if it finds one it groups them, using the beacon\nIEs from the existing entry.\n\nBut that could find another entry without a beacon, if it was also from a\nprobe response (with SSID), so there's a group without beacon elements.\n\nIf a beacon with a hidden SSID for that BSSID arrives later,\ncfg80211_combine_bsses() goes looking for the probe response entries that\nbelong to it - i.e. entries with the same BSSID and channel that have no\nbeacon IEs - and finds those two. They are already grouped with each\nother, so it hits its\n\n  WARN_ON_ONCE(bss->pub.hidden_beacon_bss)\n  WARN_ON_ONCE(!list_empty(&bss->hidden_list))\n\nwhich are there because an entry without beacon elements is not supposed\nto be part of a group yet.\n\nOnly combine entries when a beacon was already received, ones that are\nkept separate will be combined when a beacon arrives.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"4cd6a518ce7527284bbc9baab5fa2453a7d477c2","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"74ed0d992f392c75e1969415527e06df3f7a4034","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"3658093df69849daf4f813a8f087f358e13be203","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"73365b81630b57e1a1f9d50dc87281797855c2ac","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"7405dd19bda4537a2843637d8d7bed1efd4776cf","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"86235be788094131912e9bd8412b358d91d99f49","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"332ea1502c46f53375cb109fa82bfaff818f3a41","status":"affected","versionType":"git"},{"version":"4593c4cbe1c96b3995727dc42f6aa103f4ff5afc","lessThan":"068843ed0902c552a13860c5ec6b2ca65b57a065","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"3.9","status":"affected"},{"version":"0","lessThan":"3.9","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-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4cd6a518ce7527284bbc9baab5fa2453a7d477c2","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"74ed0d992f392c75e1969415527e06df3f7a4034","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3658093df69849daf4f813a8f087f358e13be203","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"73365b81630b57e1a1f9d50dc87281797855c2ac","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7405dd19bda4537a2843637d8d7bed1efd4776cf","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"86235be788094131912e9bd8412b358d91d99f49","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"332ea1502c46f53375cb109fa82bfaff818f3a41","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","source_modified_at":"2026-10-19T09:17:51.387Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"068843ed0902c552a13860c5ec6b2ca65b57a065","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00184,"percentile":0.07617,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:46:30.796Z","modified_at":"2026-10-19T09:17:51.387Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98340","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:17:51.387Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98340","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/4cd6a518ce7527284bbc9baab5fa2453a7d477c2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/74ed0d992f392c75e1969415527e06df3f7a4034"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3658093df69849daf4f813a8f087f358e13be203"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/73365b81630b57e1a1f9d50dc87281797855c2ac"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7405dd19bda4537a2843637d8d7bed1efd4776cf"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/86235be788094131912e9bd8412b358d91d99f49"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/332ea1502c46f53375cb109fa82bfaff818f3a41"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/068843ed0902c552a13860c5ec6b2ca65b57a065"}],"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":"2026-10-19T09:17:51.387Z","content_hash":"602b01c24dfc35564cad7f826e333008c119e9af29c046b0a865fe3b2d997d1c"}}