CVE-2026-90343

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90343", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.804Z", "datePublished": "2026-09-17T16:08:53.670Z", "dateUpdated": "2026-10-30T12:35:16.376Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:35:16.376Z"}, "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": {"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"}, "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."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/wireless/core.c"], "versions": [{"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "lessThan": "af158188ef7b4e89d0a3c04680a98d90b3822ec5", "status": "affected", "versionType": "git"}, {"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "lessThan": "9374943fc5a45915e4ea8b597b6a17d3b571bcbf", "status": "affected", "versionType": "git"}, {"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "lessThan": "dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4", "status": "affected", "versionType": "git"}, {"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "lessThan": "7a22cbc6c6bdd3c3811b4ce13875685c520f94de", "status": "affected", "versionType": "git"}, {"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "lessThan": "db3439ad11ac5e52decdefe784c98b21c3757848", "status": "affected", "versionType": "git"}, {"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "lessThan": "6c5fc504d0d6934132637aa3db4b9b58148eaa78", "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/wireless/core.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "5.0", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/af158188ef7b4e89d0a3c04680a98d90b3822ec5"}, {"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"}}}}

{}

{"affected": [{"affectedData": [{"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": "af158188ef7b4e89d0a3c04680a98d90b3822ec5", "status": "affected", "version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2", "versionType": "git"}, {"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": "6.1.*", "status": "unaffected", "version": "6.1.191", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-90343", "lastModified": "2026-10-30T13:20:50.440", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-09-17T17:17:32.977", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9374943fc5a45915e4ea8b597b6a17d3b571bcbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af158188ef7b4e89d0a3c04680a98d90b3822ec5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9bb7e0f24e7e7d00daa1219b14539e2e602649b2,7a22cbc6c6bdd3c3811b4ce13875685c520f94de)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9bb7e0f24e7e7d00daa1219b14539e2e602649b2,db3439ad11ac5e52decdefe784c98b21c3757848)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9bb7e0f24e7e7d00daa1219b14539e2e602649b2,6c5fc504d0d6934132637aa3db4b9b58148eaa78)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T05:30:17.541192+00:00", "updated": "2026-09-19T15:45:16.348656+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}