{"api_version":"1","generated_at":"2026-10-16T01:37:16+00:00","cve":"CVE-2026-98326","urls":{"html":"https://cve.report/CVE-2026-98326","api":"https://cve.report/api/cve/CVE-2026-98326.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98326","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98326"},"summary":{"title":"wifi: mac80211: mesh: release the channel if start fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: release the channel if start fails\n\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\n\n  wlan0: Failed check-sdata-in-driver check, flags: 0x0\n  WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\n   ieee80211_assign_link_chanctx\n   __ieee80211_link_release_channel\n   ieee80211_link_release_channel\n   ieee80211_teardown_sdata\n   unregister_netdevice_many_notify\n   _cfg80211_unregister_wdev\n   ieee80211_remove_interfaces\n   ieee80211_unregister_hw\n   mac80211_hwsim_del_radio\n   hwsim_exit_net\n\nCorrectly release the channel on start failures.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-06 09:18:24","updated_at":"2026-10-06 09:18:24"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12","name":"https://git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf","name":"https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe","name":"https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f","name":"https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f","name":"https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d","name":"https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98326","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98326","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b5e19677592c167d012c2d129407f39d2bdeb8d f0afcec2129c166e61821d6ae097061155f01b12 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b5e19677592c167d012c2d129407f39d2bdeb8d b51f5a310bd6888b90bb9546a8081215dcfe6fbe git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b5e19677592c167d012c2d129407f39d2bdeb8d 632f7acfe6dac1278a9314eaaab14fada400ddaf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b5e19677592c167d012c2d129407f39d2bdeb8d 41bee71112db53651ba9a9030de1b843255a4a7f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b5e19677592c167d012c2d129407f39d2bdeb8d 4a4e3fa77ea36d3419d806fb5883ef425a605a5d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b5e19677592c167d012c2d129407f39d2bdeb8d ae97fff6495a8764bc0ef281cfe5444f701e527f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.189 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.158 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.54 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.8 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"98326","cve":"CVE-2026-98326","epss":"0.001800000","percentile":"0.069220000","score_date":"2026-10-06","updated_at":"2026-10-07 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/cfg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f0afcec2129c166e61821d6ae097061155f01b12","status":"affected","version":"2b5e19677592c167d012c2d129407f39d2bdeb8d","versionType":"git"},{"lessThan":"b51f5a310bd6888b90bb9546a8081215dcfe6fbe","status":"affected","version":"2b5e19677592c167d012c2d129407f39d2bdeb8d","versionType":"git"},{"lessThan":"632f7acfe6dac1278a9314eaaab14fada400ddaf","status":"affected","version":"2b5e19677592c167d012c2d129407f39d2bdeb8d","versionType":"git"},{"lessThan":"41bee71112db53651ba9a9030de1b843255a4a7f","status":"affected","version":"2b5e19677592c167d012c2d129407f39d2bdeb8d","versionType":"git"},{"lessThan":"4a4e3fa77ea36d3419d806fb5883ef425a605a5d","status":"affected","version":"2b5e19677592c167d012c2d129407f39d2bdeb8d","versionType":"git"},{"lessThan":"ae97fff6495a8764bc0ef281cfe5444f701e527f","status":"affected","version":"2b5e19677592c167d012c2d129407f39d2bdeb8d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/cfg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.9"},{"lessThan":"3.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.189","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.158","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.54","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.189","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.158","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc4","versionStartIncluding":"3.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: release the channel if start fails\n\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\n\n  wlan0: Failed check-sdata-in-driver check, flags: 0x0\n  WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\n   ieee80211_assign_link_chanctx\n   __ieee80211_link_release_channel\n   ieee80211_link_release_channel\n   ieee80211_teardown_sdata\n   unregister_netdevice_many_notify\n   _cfg80211_unregister_wdev\n   ieee80211_remove_interfaces\n   ieee80211_unregister_hw\n   mac80211_hwsim_del_radio\n   hwsim_exit_net\n\nCorrectly release the channel on start failures."}],"providerMetadata":{"dateUpdated":"2026-10-06T08:46:19.534Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12"},{"url":"https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe"},{"url":"https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf"},{"url":"https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f"},{"url":"https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d"},{"url":"https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f"}],"title":"wifi: mac80211: mesh: release the channel if start fails","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98326","datePublished":"2026-10-06T08:46:19.534Z","dateReserved":"2026-09-25T10:25:14.340Z","dateUpdated":"2026-10-06T08:46:19.534Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 09:18:24","lastModifiedDate":"2026-10-06 09:18:24","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98326","Ordinal":"1","Title":"wifi: mac80211: mesh: release the channel if start fails","CVE":"CVE-2026-98326","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98326","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: release the channel if start fails\n\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\n\n  wlan0: Failed check-sdata-in-driver check, flags: 0x0\n  WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\n   ieee80211_assign_link_chanctx\n   __ieee80211_link_release_channel\n   ieee80211_link_release_channel\n   ieee80211_teardown_sdata\n   unregister_netdevice_many_notify\n   _cfg80211_unregister_wdev\n   ieee80211_remove_interfaces\n   ieee80211_unregister_hw\n   mac80211_hwsim_del_radio\n   hwsim_exit_net\n\nCorrectly release the channel on start failures.","Type":"Description","Title":"wifi: mac80211: mesh: release the channel if start fails"}]}}}