{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98327","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.341Z","datePublished":"2026-10-06T08:46:20.317Z","dateUpdated":"2026-10-06T08:46:20.317Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-06T08:46:20.317Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: reset the CSA state when leaving\n\nifmsh->csa is allocated in ieee80211_mesh_csa_beacon() and only freed\nin ieee80211_mesh_finish_csa(), i.e. when the channel switch completes.\nLeaving the mesh while a switch is still pending therefore leaks it.\n\nAdditionally, ifmsh->csa_role and ifmsh->chsw_ttl have their state leak\nin this case, so things can get mixed up in addition to the memory\nleak.\n\nRefactor the reset and call it in ieee80211_stop_mesh() to fix it all."}],"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":"aba8dfb45864441199748c33ce3c1c8ca121c8bd","status":"affected","versionType":"git"},{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"bd3b21145ae2e781daac1bbd19216a63ab4e0cbd","status":"affected","versionType":"git"},{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"ba5bf83a81e8832cb84bb3a2da67512f81f57a02","status":"affected","versionType":"git"},{"version":"b8456a14e9d2770846fcf74de18ff95b676149a3","lessThan":"860134b3af77970e006feab7e5decb8c84771c7f","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/aba8dfb45864441199748c33ce3c1c8ca121c8bd"},{"url":"https://git.kernel.org/stable/c/bd3b21145ae2e781daac1bbd19216a63ab4e0cbd"},{"url":"https://git.kernel.org/stable/c/ba5bf83a81e8832cb84bb3a2da67512f81f57a02"},{"url":"https://git.kernel.org/stable/c/860134b3af77970e006feab7e5decb8c84771c7f"}],"title":"wifi: mac80211: mesh: reset the CSA state when leaving","x_generator":{"engine":"bippy-1.2.0"}}}}