{"api_version":"1","generated_at":"2026-10-27T06:05:15+00:00","cve":"CVE-2026-90343","urls":{"html":"https://cve.report/CVE-2026-90343","api":"https://cve.report/api/cve/CVE-2026-90343.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90343","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90343"},"summary":{"title":"wifi: cfg80211: stop PMSR before P2P and NAN teardown","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:32","updated_at":"2026-10-21 13:20:51"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","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","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","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","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848","name":"https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78","name":"https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de","name":"https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4","name":"https://git.kernel.org/stable/c/dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9374943fc5a45915e4ea8b597b6a17d3b571bcbf","name":"https://git.kernel.org/stable/c/9374943fc5a45915e4ea8b597b6a17d3b571bcbf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90343","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90343","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 9374943fc5a45915e4ea8b597b6a17d3b571bcbf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 7a22cbc6c6bdd3c3811b4ce13875685c520f94de git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 db3439ad11ac5e52decdefe784c98b21c3757848 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 6c5fc504d0d6934132637aa3db4b9b58148eaa78 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.0","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.0 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.160 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.114 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"90343","cve":"CVE-2026-90343","epss":"0.001730000","percentile":"0.064190000","score_date":"2026-10-21","updated_at":"2026-10-22 00:15:10"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/wireless/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9374943fc5a45915e4ea8b597b6a17d3b571bcbf","status":"affected","version":"9bb7e0f24e7e7d00daa1219b14539e2e602649b2","versionType":"git"},{"lessThan":"dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4","status":"affected","version":"9bb7e0f24e7e7d00daa1219b14539e2e602649b2","versionType":"git"},{"lessThan":"7a22cbc6c6bdd3c3811b4ce13875685c520f94de","status":"affected","version":"9bb7e0f24e7e7d00daa1219b14539e2e602649b2","versionType":"git"},{"lessThan":"db3439ad11ac5e52decdefe784c98b21c3757848","status":"affected","version":"9bb7e0f24e7e7d00daa1219b14539e2e602649b2","versionType":"git"},{"lessThan":"6c5fc504d0d6934132637aa3db4b9b58148eaa78","status":"affected","version":"9bb7e0f24e7e7d00daa1219b14539e2e602649b2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/wireless/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.0"},{"lessThan":"5.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.160","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.114","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.160","versionStartIncluding":"5.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.114","versionStartIncluding":"5.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"5.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"5.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"scenarios":[{"lang":"en","value":"AV:L - The UAF is created when nl80211_stop_p2p_device() or nl80211_stop_nan() (also cfg80211_shutdown_all_interfaces() and _cfg80211_unregister_wdev()) call cfg80211_stop_p2p_device()/cfg80211_stop_nan() with a pending cfg80211_pmsr_request still on wdev->pmsr_list; those paths are local generic-netlink/rfkill/unregister, not parsing of a received 802.11/FTM frame.\nAC:L - The attacker issues NL80211_CMD_PEER_MEASUREMENT_START (iwlwifi stores mvm->ftm_initiator.req; hwsim stores data->pmsr_request), then NL80211_CMD_STOP_P2P_DEVICE so drv_remove_interface() clears IEEE80211_SDATA_IN_DRIVER, then closes the socket so nl80211_netlink_notify()->cfg80211_release_pmsr() kfree()s the request while drv_abort_pmsr() returns without calling the driver.\nPR:L - NL80211_CMD_NEW_INTERFACE, NL80211_CMD_START_P2P_DEVICE, NL80211_CMD_PEER_MEASUREMENT_START and NL80211_CMD_STOP_P2P_DEVICE are GENL_UNS_ADMIN_PERM, checked as netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN); an unprivileged user obtains that via unshare -Urn. (STOP_NAN is GENL_ADMIN_PERM, but the P2P path is sufficient.)\nUI:N - The attacker creates/starts the P2P_DEVICE wdev, starts the PMSR request, stops it via NL80211_CMD_STOP_P2P_DEVICE, and closes their own nl80211 socket; no other user must associate, mount, or confirm anything.\nS:U - The dangling cfg80211_pmsr_request is used in-process by iwl_mvm_ftm_range_resp()/iwl_mvm_ftm_restart() and cfg80211_pmsr_report() in the same kernel; this does not cross a VM, IOMMU, or sandbox boundary.\nC:H - After kfree(req) in cfg80211_pmsr_process_abort(), iwl_mvm_ftm_range_resp() and iwl_mvm_ftm_restart() still load mvm->ftm_initiator.req->cookie, n_peers and peers[].addr and pass the object to cfg80211_pmsr_report(); that heap UAF is an arbitrary read primitive.\nI:H - The same stale ftm_initiator.req / hwsim pmsr_request is later passed to cfg80211_pmsr_complete() (list_del on the freed object) and used as live driver state, giving a heap write/control-flow hijack primitive from the UAF.\nA:H - iwl_mvm_ftm_range_resp() dereferences the freed cfg80211_pmsr_request when firmware later delivers a TOF range response (or iwl_mvm_ftm_restart() on FW restart), which oopses the kernel even without a full exploit."}]}],"providerMetadata":{"dateUpdated":"2026-10-21T12:51:08.784Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9374943fc5a45915e4ea8b597b6a17d3b571bcbf"},{"url":"https://git.kernel.org/stable/c/dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4"},{"url":"https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de"},{"url":"https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848"},{"url":"https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78"}],"title":"wifi: cfg80211: stop PMSR before P2P and NAN teardown","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90343","datePublished":"2026-09-17T16:08:53.670Z","dateReserved":"2026-09-11T19:38:34.804Z","dateUpdated":"2026-10-21T12:51:08.784Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:32","lastModifiedDate":"2026-10-21 13:20:51","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90343","Ordinal":"1","Title":"wifi: cfg80211: stop PMSR before P2P and NAN teardown","CVE":"CVE-2026-90343","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90343","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"wifi: cfg80211: stop PMSR before P2P and NAN teardown"}]}}}