ghsa-g68j-9rxj-c36w
Vulnerability from github
Published
2024-06-19 15:30
Modified
2024-06-19 15:30
Details

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

mac80211: track only QoS data frames for admission control

For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header.

Syzbot reported (see below) an uninitialized value here due to a status of a non-QoS nullfunc packet, which isn't even long enough to contain the QoS header.

Fix this to only do anything for QoS data packets.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2021-47602"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T15:15:54Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac80211: track only QoS data frames for admission control\n\nFor admission control, obviously all of that only works for\nQoS data frames, otherwise we cannot even access the QoS\nfield in the header.\n\nSyzbot reported (see below) an uninitialized value here due\nto a status of a non-QoS nullfunc packet, which isn\u0027t even\nlong enough to contain the QoS header.\n\nFix this to only do anything for QoS data packets.",
  "id": "GHSA-g68j-9rxj-c36w",
  "modified": "2024-06-19T15:30:55Z",
  "published": "2024-06-19T15:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47602"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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