CVE-2025-39864 (GCVE-0-2025-39864)
Vulnerability from cvelistv5
Published
2025-09-19 15:26
Modified
2025-09-19 15:26
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26e84445f02ce6b2fe5f3e0e28ff7add77f35e08
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5b7ae04969f822283a95c866967e42b4d75e0eef
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6854476d9e1aeaaf05ebc98d610061c2075db07d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/912c4b66bef713a20775cfbf3b5e9bd71525c716
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a8bb681e879ca3c9f722aa08d3d7ae41c42a8807
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a97a9791e455bb0cd5e7a38b5abcb05523d4e21c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7d08929178c16398278613df07ad65cf63cce9d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff040562c10a540b8d851f7f4145fa112977f853
Impacted products
Vendor Product Version
Linux Linux Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
Version: 3ab8227d3e7d1d2bf1829675d3197e3cb600e9f6
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   Linux Linux Version: 5.4
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/scan.c"
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              "version": "6.17-rc5",
              "versionType": "original_commit_for_fix"
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          ]
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-19T15:26:33.787Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39864",
    "datePublished": "2025-09-19T15:26:33.787Z",
    "dateReserved": "2025-04-16T07:20:57.143Z",
    "dateUpdated": "2025-09-19T15:26:33.787Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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