GHSA-MRPV-WRF5-7WR6

Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2026-01-20 21:31
VLAI?
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: fix use-after-free in cmp_bss()

Following bss_free() quirk introduced in commit 776b3580178f ("cfg80211: track hidden SSID networks properly"), adjust cfg80211_update_known_bss() to free the last beacon frame elements only if they're not shared via the corresponding 'hidden_beacon_bss' pointer.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-39864"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-19T16:15:45Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: fix use-after-free in cmp_bss()\n\nFollowing bss_free() quirk introduced in commit 776b3580178f\n(\"cfg80211: track hidden SSID networks properly\"), adjust\ncfg80211_update_known_bss() to free the last beacon frame\nelements only if they\u0027re not shared via the corresponding\n\u0027hidden_beacon_bss\u0027 pointer.",
  "id": "GHSA-mrpv-wrf5-7wr6",
  "modified": "2026-01-20T21:31:30Z",
  "published": "2025-09-22T21:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39864"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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