{"api_version":"1","generated_at":"2026-10-27T16:46:36+00:00","cve":"CVE-2026-98704","urls":{"html":"https://cve.report/CVE-2026-98704","api":"https://cve.report/api/cve/CVE-2026-98704.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98704","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98704"},"summary":{"title":"wifi: mac80211: keep fallback association elements alive","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: keep fallback association elements alive\n\nAssociating to a non-transmitted MBSSID profile reads freed memory while\ndetermining the operating channel and applying HT capabilities.\n\nWhen an association response omits WMM, HT, or VHT information,\nieee80211_assoc_config_link() parses the cached BSS IEs and copies the\nmissing element pointers out of that fallback parse. For a\nnon-transmitted MBSSID profile those pointers refer to merged-profile\nstorage owned by the parse object, and the fallback block frees that\nobject at its end. The copied pointers are used afterwards to determine\nthe operating channel, configure bandwidth, and apply HT capabilities.\n\nKeep the fallback parse result alive until association setup finishes.\n\n[reorder variable declaration]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:23","updated_at":"2026-10-21 13:21:38"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/1d9644753d46c86b4e5c05bd6d9d35339ea27331","name":"https://git.kernel.org/stable/c/1d9644753d46c86b4e5c05bd6d9d35339ea27331","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d0183cd1f6a2dba9e63be20af2f65093c9c8d121","name":"https://git.kernel.org/stable/c/d0183cd1f6a2dba9e63be20af2f65093c9c8d121","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0878594c5806dd29fa5e16cc026ce19158afdad2","name":"https://git.kernel.org/stable/c/0878594c5806dd29fa5e16cc026ce19158afdad2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a10a2f80476d166fd81c361ec0319493671b694e","name":"https://git.kernel.org/stable/c/a10a2f80476d166fd81c361ec0319493671b694e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/de77b0f68142147e74fac1c497dbe1f93daeeed9","name":"https://git.kernel.org/stable/c/de77b0f68142147e74fac1c497dbe1f93daeeed9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98704","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98704","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5023b14cf4df4d22e1a80738167f3438c9e62e5f de77b0f68142147e74fac1c497dbe1f93daeeed9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5023b14cf4df4d22e1a80738167f3438c9e62e5f 1d9644753d46c86b4e5c05bd6d9d35339ea27331 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5023b14cf4df4d22e1a80738167f3438c9e62e5f d0183cd1f6a2dba9e63be20af2f65093c9c8d121 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5023b14cf4df4d22e1a80738167f3438c9e62e5f 0878594c5806dd29fa5e16cc026ce19158afdad2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5023b14cf4df4d22e1a80738167f3438c9e62e5f a10a2f80476d166fd81c361ec0319493671b694e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.160 6.6.* 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":{"cve_year":"2026","cve_id":"98704","cve":"CVE-2026-98704","epss":"0.001680000","percentile":"0.057340000","score_date":"2026-10-21","updated_at":"2026-10-22 00:15:10"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/mlme.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"de77b0f68142147e74fac1c497dbe1f93daeeed9","status":"affected","version":"5023b14cf4df4d22e1a80738167f3438c9e62e5f","versionType":"git"},{"lessThan":"1d9644753d46c86b4e5c05bd6d9d35339ea27331","status":"affected","version":"5023b14cf4df4d22e1a80738167f3438c9e62e5f","versionType":"git"},{"lessThan":"d0183cd1f6a2dba9e63be20af2f65093c9c8d121","status":"affected","version":"5023b14cf4df4d22e1a80738167f3438c9e62e5f","versionType":"git"},{"lessThan":"0878594c5806dd29fa5e16cc026ce19158afdad2","status":"affected","version":"5023b14cf4df4d22e1a80738167f3438c9e62e5f","versionType":"git"},{"lessThan":"a10a2f80476d166fd81c361ec0319493671b694e","status":"affected","version":"5023b14cf4df4d22e1a80738167f3438c9e62e5f","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/mlme.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.2"},{"lessThan":"5.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.160","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":"6.6.160","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"5.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"5.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: keep fallback association elements alive\n\nAssociating to a non-transmitted MBSSID profile reads freed memory while\ndetermining the operating channel and applying HT capabilities.\n\nWhen an association response omits WMM, HT, or VHT information,\nieee80211_assoc_config_link() parses the cached BSS IEs and copies the\nmissing element pointers out of that fallback parse. For a\nnon-transmitted MBSSID profile those pointers refer to merged-profile\nstorage owned by the parse object, and the fallback block frees that\nobject at its end. The copied pointers are used afterwards to determine\nthe operating channel, configure bandwidth, and apply HT capabilities.\n\nKeep the fallback parse result alive until association setup finishes.\n\n[reorder variable declaration]"}],"providerMetadata":{"dateUpdated":"2026-10-21T12:55:52.970Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/de77b0f68142147e74fac1c497dbe1f93daeeed9"},{"url":"https://git.kernel.org/stable/c/1d9644753d46c86b4e5c05bd6d9d35339ea27331"},{"url":"https://git.kernel.org/stable/c/d0183cd1f6a2dba9e63be20af2f65093c9c8d121"},{"url":"https://git.kernel.org/stable/c/0878594c5806dd29fa5e16cc026ce19158afdad2"},{"url":"https://git.kernel.org/stable/c/a10a2f80476d166fd81c361ec0319493671b694e"}],"title":"wifi: mac80211: keep fallback association elements alive","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98704","datePublished":"2026-10-18T15:46:34.493Z","dateReserved":"2026-09-25T10:25:14.365Z","dateUpdated":"2026-10-21T12:55:52.970Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:23","lastModifiedDate":"2026-10-21 13:21:38","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98704","Ordinal":"1","Title":"wifi: mac80211: keep fallback association elements alive","CVE":"CVE-2026-98704","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98704","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: keep fallback association elements alive\n\nAssociating to a non-transmitted MBSSID profile reads freed memory while\ndetermining the operating channel and applying HT capabilities.\n\nWhen an association response omits WMM, HT, or VHT information,\nieee80211_assoc_config_link() parses the cached BSS IEs and copies the\nmissing element pointers out of that fallback parse. For a\nnon-transmitted MBSSID profile those pointers refer to merged-profile\nstorage owned by the parse object, and the fallback block frees that\nobject at its end. The copied pointers are used afterwards to determine\nthe operating channel, configure bandwidth, and apply HT capabilities.\n\nKeep the fallback parse result alive until association setup finishes.\n\n[reorder variable declaration]","Type":"Description","Title":"wifi: mac80211: keep fallback association elements alive"}]}}}