ghsa-cwj6-5v55-7mj7
Vulnerability from github
Published
2024-05-21 15:31
Modified
2025-04-30 15:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

batman-adv: Avoid WARN_ON timing related checks

The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker.

But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47252"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: Avoid WARN_ON timing related checks\n\nThe soft/batadv interface for a queued OGM can be changed during the time\nthe OGM was queued for transmission and when the OGM is actually\ntransmitted by the worker.\n\nBut WARN_ON must be used to denote kernel bugs and not to print simple\nwarnings. A warning can simply be printed using pr_warn.",
  "id": "GHSA-cwj6-5v55-7mj7",
  "modified": "2025-04-30T15:30:43Z",
  "published": "2024-05-21T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47252"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/282baa8104af44e04c4af3e7f933b44267c7f86f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45011f2973f6b52cf50db397bb27bf805f5f0e7f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f460ae31c4435fd022c443a6029352217a16ac1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8e9d2968a9d08bf5c683afca182f1537edebf8d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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