{"id":"CVE-2026-90343","title":"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","summary":"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. cfg80…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 < 7a22cbc6c6bdd3c3811b4ce13875685c520f94de","Linux >= 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 < db3439ad11ac5e52decdefe784c98b21c3757848","Linux >= 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 < 6c5fc504d0d6934132637aa3db4b9b58148eaa78","Linux 5.0"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:54.750","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90343","references":[{"url":"https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00161,"epssPercentile":0.05764,"ingestedAt":"2026-09-17T16:21:47.817Z","slug":"CVE-2026-90343","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207267,"id":"CVE-2026-90343","ts":1789757340147,"field":"cvss","old":null,"new":"7.8"},{"seq":207266,"id":"CVE-2026-90343","ts":1789757340147,"field":"severity","old":"none","new":"high"}]}