{"id":"CVE-2026-90343","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-90343","summary":"wifi: cfg80211: stop PMSR before P2P and NAN teardown","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: stop PMSR before P2P and NAN teardown\n\nPMSR request teardown must abort active measurements while the\nwireless_dev is still present in the driver. cfg80211_leave_locked() and\ncfg80211_stop_pd() already do this before invoking the driver's stop\ncallback, but cfg80211_stop_p2p_device() and cfg80211_stop_nan() do not.\n\nThose helpers are also called directly by nl80211, rfkill shutdown, and\nwireless_dev unregister paths. If one of these paths stops a P2P device\nor NAN interface with a pending request, it removes the mac80211\nsubinterface from the driver first. Subsequent request cleanup cannot\nreach the lower driver's abort callback, but cfg80211 frees the request\nregardless. Driver state can then retain a stale request and use it when\nit later reports a result.\n\nCall cfg80211_pmsr_wdev_down() before stopping the P2P device or NAN\ninterface. This keeps lower-driver request state and cfg80211 request\nownership in sync for all of the helpers' callers.","published":"2026-09-17T16:08:53.670Z","modified":"2026-09-19T03:47:26.076450190Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.18.52"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de"},{"type":"WEB","url":"https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90343.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90343"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-19T03:47:26.076450190Z"}}