{"id":"CVE-2026-98822","title":"wifi: mac80211: prevent AP VLAN tx from other interfaces","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: prevent AP VLAN tx from other interfaces\n\nSince the station lookup was factored out of ieee80211_build_hdr(),\nieee80211_lookup_ra_sta() uses sta_info_ge…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < fd875e24e8f2b202e3636b3ef8e6060874eca0e5","Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < 88e96d902efeefbffc34450969f40dc61a0c8a42","Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0","Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < 7f93ca31f7fd9b42e7d692f59514436d448ac908","Linux 4.1"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:49:14.593Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98822","references":[{"url":"https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5"},{"url":"https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42"},{"url":"https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0"},{"url":"https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T16:47:32.474Z","slug":"CVE-2026-98822","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: prevent AP VLAN tx from other interfaces\n\nSince the station lookup was factored out of ieee80211_build_hdr(),\nieee80211_lookup_ra_sta() uses sta_info_get_bss() for all AP and AP VLAN\nframes, not only for control port frames. A unicast frame sent on one\ninterface thus matches a station of a different VLAN of the same BSS and\nis transmitted to it.\n\nOnly match stations of the interface the frame is sent on, except for\ncontrol port frames, since those may be sent for VLAN stations directly\non the BSS interface.\n\n## Affected\n\n- `Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < fd875e24e8f2b202e3636b3ef8e6060874eca0e5`\n- `Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < 88e96d902efeefbffc34450969f40dc61a0c8a42`\n- `Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0`\n- `Linux >= 97ffe75791b3e9c0797d5891070e41321c3beccb < 7f93ca31f7fd9b42e7d692f59514436d448ac908`\n- `Linux 4.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}