{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98335","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.342Z","datePublished":"2026-10-06T08:46:26.816Z","dateUpdated":"2026-10-06T08:46:26.816Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-06T08:46:26.816Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/mesh.c"],"versions":[{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"bc544ef02327edf61c94d2b6bae9d14b217009b2","status":"affected","versionType":"git"},{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"2e1d6e80148495e728a85a9250176f266312e55c","status":"affected","versionType":"git"},{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"d222fdc973bb8dbf0357772bd9042ffdc8291939","status":"affected","versionType":"git"},{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"ac7472a24bd433b81c06582835dd1d5547c10da9","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/mesh.c"],"versions":[{"version":"3.13","status":"affected"},{"version":"0","lessThan":"3.13","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc4","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"7.3-rc4"}]}]}],"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"}}}}