{"id":"CVE-2026-98327","summary":"wifi: mac80211: mesh: reset the CSA state when leaving","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: reset the CSA state when leaving\n\nifmsh-\u003ecsa 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-\u003ecsa_role and ifmsh-\u003echsw_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.","modified":"2026-10-07T02:47:34.380839201Z","published":"2026-10-06T08:46:20.317Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98327.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/860134b3af77970e006feab7e5decb8c84771c7f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aba8dfb45864441199748c33ce3c1c8ca121c8bd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba5bf83a81e8832cb84bb3a2da67512f81f57a02"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bd3b21145ae2e781daac1bbd19216a63ab4e0cbd"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98327.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98327"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b8456a14e9d2770846fcf74de18ff95b676149a3"},{"fixed":"aba8dfb45864441199748c33ce3c1c8ca121c8bd"},{"fixed":"bd3b21145ae2e781daac1bbd19216a63ab4e0cbd"},{"fixed":"ba5bf83a81e8832cb84bb3a2da67512f81f57a02"},{"fixed":"860134b3af77970e006feab7e5decb8c84771c7f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98327.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.13.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.54"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98327.json"}}],"schema_version":"1.9.0"}