{"api_version":"1","generated_at":"2026-10-06T22:37:47+00:00","cve":"CVE-2026-98335","urls":{"html":"https://cve.report/CVE-2026-98335","api":"https://cve.report/api/cve/CVE-2026-98335.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98335","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98335"},"summary":{"title":"wifi: mac80211: abort chanswitch when leaving a mesh","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: abort chanswitch when leaving a mesh\n\nThe code in ieee80211_stop_mesh() leaves CSA active, but leaving\nthe mesh released the channel context, so the CSA finalize work\ncrashes:\n\n  Oops: general protection fault, probably for non-canonical address\n        0xdffffc0000000003\n  KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\n  RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272\n  Call Trace:\n   ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093\n   ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147\n   ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542\n   ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]\n   __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]\n   ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155\n   cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438\n\nAbort the channel switch properly.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-06 09:18:26","updated_at":"2026-10-06 09:18:26"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c","name":"https://git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9","name":"https://git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939","name":"https://git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2","name":"https://git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98335","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98335","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b8456a14e9d2770846fcf74de18ff95b676149a3 bc544ef02327edf61c94d2b6bae9d14b217009b2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b8456a14e9d2770846fcf74de18ff95b676149a3 2e1d6e80148495e728a85a9250176f266312e55c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b8456a14e9d2770846fcf74de18ff95b676149a3 d222fdc973bb8dbf0357772bd9042ffdc8291939 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b8456a14e9d2770846fcf74de18ff95b676149a3 ac7472a24bd433b81c06582835dd1d5547c10da9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.13 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":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/mesh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bc544ef02327edf61c94d2b6bae9d14b217009b2","status":"affected","version":"b8456a14e9d2770846fcf74de18ff95b676149a3","versionType":"git"},{"lessThan":"2e1d6e80148495e728a85a9250176f266312e55c","status":"affected","version":"b8456a14e9d2770846fcf74de18ff95b676149a3","versionType":"git"},{"lessThan":"d222fdc973bb8dbf0357772bd9042ffdc8291939","status":"affected","version":"b8456a14e9d2770846fcf74de18ff95b676149a3","versionType":"git"},{"lessThan":"ac7472a24bd433b81c06582835dd1d5547c10da9","status":"affected","version":"b8456a14e9d2770846fcf74de18ff95b676149a3","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/mesh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.13"},{"lessThan":"3.13","status":"unaffected","version":"0","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":"6.12.112","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc4","versionStartIncluding":"3.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: abort chanswitch when leaving a mesh\n\nThe code in ieee80211_stop_mesh() leaves CSA active, but leaving\nthe mesh released the channel context, so the CSA finalize work\ncrashes:\n\n  Oops: general protection fault, probably for non-canonical address\n        0xdffffc0000000003\n  KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\n  RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272\n  Call Trace:\n   ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093\n   ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147\n   ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542\n   ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]\n   __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]\n   ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155\n   cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438\n\nAbort the channel switch properly."}],"providerMetadata":{"dateUpdated":"2026-10-06T08:46:26.816Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2"},{"url":"https://git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c"},{"url":"https://git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939"},{"url":"https://git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9"}],"title":"wifi: mac80211: abort chanswitch when leaving a mesh","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98335","datePublished":"2026-10-06T08:46:26.816Z","dateReserved":"2026-09-25T10:25:14.342Z","dateUpdated":"2026-10-06T08:46:26.816Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 09:18:26","lastModifiedDate":"2026-10-06 09:18:26","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98335","Ordinal":"1","Title":"wifi: mac80211: abort chanswitch when leaving a mesh","CVE":"CVE-2026-98335","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98335","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: abort chanswitch when leaving a mesh\n\nThe code in ieee80211_stop_mesh() leaves CSA active, but leaving\nthe mesh released the channel context, so the CSA finalize work\ncrashes:\n\n  Oops: general protection fault, probably for non-canonical address\n        0xdffffc0000000003\n  KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\n  RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272\n  Call Trace:\n   ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093\n   ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147\n   ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542\n   ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]\n   __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]\n   ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155\n   cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438\n\nAbort the channel switch properly.","Type":"Description","Title":"wifi: mac80211: abort chanswitch when leaving a mesh"}]}}}