{"api_version":"1","generated_at":"2026-10-20T15:39:20+00:00","cve":"CVE-2026-98822","urls":{"html":"https://cve.report/CVE-2026-98822","api":"https://cve.report/api/cve/CVE-2026-98822.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98822","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98822"},"summary":{"title":"wifi: mac80211: prevent AP VLAN tx from other interfaces","description":"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_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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:36","updated_at":"2026-10-19 10:19:46"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0","name":"https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42","name":"https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5","name":"https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908","name":"https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98822","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98822","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97ffe75791b3e9c0797d5891070e41321c3beccb fd875e24e8f2b202e3636b3ef8e6060874eca0e5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97ffe75791b3e9c0797d5891070e41321c3beccb 88e96d902efeefbffc34450969f40dc61a0c8a42 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97ffe75791b3e9c0797d5891070e41321c3beccb ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97ffe75791b3e9c0797d5891070e41321c3beccb 7f93ca31f7fd9b42e7d692f59514436d448ac908 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.56 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.10 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/ieee80211_i.h","net/mac80211/tx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fd875e24e8f2b202e3636b3ef8e6060874eca0e5","status":"affected","version":"97ffe75791b3e9c0797d5891070e41321c3beccb","versionType":"git"},{"lessThan":"88e96d902efeefbffc34450969f40dc61a0c8a42","status":"affected","version":"97ffe75791b3e9c0797d5891070e41321c3beccb","versionType":"git"},{"lessThan":"ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0","status":"affected","version":"97ffe75791b3e9c0797d5891070e41321c3beccb","versionType":"git"},{"lessThan":"7f93ca31f7fd9b42e7d692f59514436d448ac908","status":"affected","version":"97ffe75791b3e9c0797d5891070e41321c3beccb","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/ieee80211_i.h","net/mac80211/tx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.1"},{"lessThan":"4.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.56","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"4.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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_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."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:26:15.163Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}],"title":"wifi: mac80211: prevent AP VLAN tx from other interfaces","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98822","datePublished":"2026-10-18T15:49:14.593Z","dateReserved":"2026-09-25T10:25:14.372Z","dateUpdated":"2026-10-19T09:26:15.163Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:36","lastModifiedDate":"2026-10-19 10:19:46","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98822","Ordinal":"1","Title":"wifi: mac80211: prevent AP VLAN tx from other interfaces","CVE":"CVE-2026-98822","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98822","Ordinal":"1","NoteData":"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_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.","Type":"Description","Title":"wifi: mac80211: prevent AP VLAN tx from other interfaces"}]}}}