{
  "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": "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.191",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "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\u0027s 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\u0027s 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\u0027 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-\u003epmsr_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-\u003eftm_initiator.req; hwsim stores data-\u003epmsr_request), then NL80211_CMD_STOP_P2P_DEVICE so drv_remove_interface() clears IEEE80211_SDATA_IN_DRIVER, then closes the socket so nl80211_netlink_notify()-\u003ecfg80211_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-\u003euser_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-\u003eftm_initiator.req-\u003ecookie, 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": "2026-10-30T12:35:16.376Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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"
      }
    }
  },
  "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": "2026-10-30T12:35:16.376Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}