{"id":"CVE-2026-98421","state":"PUBLISHED","title":"wifi: mac80211: require a peer station for TDLS setup confirm","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: require a peer station for TDLS setup confirm\n\nIt's nonsense for the setup confirm to go to station that\ndoesn't even exist, and it hits a warning when building\nthe frame:\n\n  WARN_ON_ONCE(!sta || !ap_sta)\n\nOnly accept WLAN_TDLS_SETUP_CONFIRM when the station is\nalready there as a TDLS station. Need to copy the call\nto ieee80211_tdls_prep_mgmt_packet() since the existing\nWLAN_TDLS_DISCOVERY_REQUEST already falls through to it.","publishedAt":"2026-10-14T13:27:50.200Z","updatedAt":"2026-10-19T09:19:14.905Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"6bae6ef511a29ef12ab969adeea691067d4d5d74","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"d0afa5395c46d73ad2090aa50209886e84f179bd","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"742c762bee59c973684f70dfed7de4945d3141e2","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"fce36d242a18ddf64731d816a37564103172da11","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"038e1d126304fd25d507fd4e671232df57bd1799","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/tdls.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/tdls.c"]}],"references":["https://git.kernel.org/stable/c/6bae6ef511a29ef12ab969adeea691067d4d5d74","https://git.kernel.org/stable/c/d0afa5395c46d73ad2090aa50209886e84f179bd","https://git.kernel.org/stable/c/742c762bee59c973684f70dfed7de4945d3141e2","https://git.kernel.org/stable/c/fce36d242a18ddf64731d816a37564103172da11","https://git.kernel.org/stable/c/1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b","https://git.kernel.org/stable/c/038e1d126304fd25d507fd4e671232df57bd1799"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98421.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98421","state":"PUBLISHED","datePublished":"2026-10-14T13:27:50.200Z","dateUpdated":"2026-10-19T09:19:14.905Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.348Z"},"containers":{"cna":{"title":"wifi: mac80211: require a peer station for TDLS setup confirm","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: require a peer station for TDLS setup confirm\n\nIt's nonsense for the setup confirm to go to station that\ndoesn't even exist, and it hits a warning when building\nthe frame:\n\n  WARN_ON_ONCE(!sta || !ap_sta)\n\nOnly accept WLAN_TDLS_SETUP_CONFIRM when the station is\nalready there as a TDLS station. Need to copy the call\nto ieee80211_tdls_prep_mgmt_packet() since the existing\nWLAN_TDLS_DISCOVERY_REQUEST already falls through to it."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"6bae6ef511a29ef12ab969adeea691067d4d5d74","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"d0afa5395c46d73ad2090aa50209886e84f179bd","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"742c762bee59c973684f70dfed7de4945d3141e2","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"fce36d242a18ddf64731d816a37564103172da11","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b","versionType":"git"},{"version":"6f7eaa47e1de30159277f91f1145a6687f13ffd9","status":"affected","lessThan":"038e1d126304fd25d507fd4e671232df57bd1799","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/tdls.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/tdls.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6bae6ef511a29ef12ab969adeea691067d4d5d74"},{"url":"https://git.kernel.org/stable/c/d0afa5395c46d73ad2090aa50209886e84f179bd"},{"url":"https://git.kernel.org/stable/c/742c762bee59c973684f70dfed7de4945d3141e2"},{"url":"https://git.kernel.org/stable/c/fce36d242a18ddf64731d816a37564103172da11"},{"url":"https://git.kernel.org/stable/c/1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b"},{"url":"https://git.kernel.org/stable/c/038e1d126304fd25d507fd4e671232df57bd1799"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:19:14.905Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}