ghsa-q5wr-hr4c-4mfv
Vulnerability from github
Published
2025-10-07 18:31
Modified
2025-10-07 18:31
Details

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

wifi: mac80211: mlme: fix null-ptr deref on failed assoc

If association to an AP without a link 0 fails, then we crash in tracing because it assumes that either ap_mld_addr or link 0 BSS is valid, since we clear sdata->vif.valid_links and then don't add the ap_mld_addr to the struct.

Since we clear also sdata->vif.cfg.ap_addr, keep a local copy of it and assign it earlier, before clearing valid_links, to fix this.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50533"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T16:15:37Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mlme: fix null-ptr deref on failed assoc\n\nIf association to an AP without a link 0 fails, then we crash in\ntracing because it assumes that either ap_mld_addr or link 0 BSS\nis valid, since we clear sdata-\u003evif.valid_links and then don\u0027t\nadd the ap_mld_addr to the struct.\n\nSince we clear also sdata-\u003evif.cfg.ap_addr, keep a local copy of\nit and assign it earlier, before clearing valid_links, to fix\nthis.",
  "id": "GHSA-q5wr-hr4c-4mfv",
  "modified": "2025-10-07T18:31:08Z",
  "published": "2025-10-07T18:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50533"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78a6a43aaf87180ec7425a2a90468e1b4d09a1ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb7743955a929e44b308cc3f63f8cc03873c1bee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c695dfba8dfb82dc7ace4f22be088916cbf621ca"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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