GHSA-CJRR-3F69-P92J

Vulnerability from github – Published: 2025-04-01 18:30 – Updated: 2025-11-03 21:33
VLAI?
Details

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

ftrace: Avoid potential division by zero in function_stat_show()

Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64} produce zero and skip stddev computation in that case.

For now don't care about rec->counter * rec->counter overflow because rec->time * rec->time overflow will likely happen earlier.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-21898"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-369"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:20Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Avoid potential division by zero in function_stat_show()\n\nCheck whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64}\nproduce zero and skip stddev computation in that case.\n\nFor now don\u0027t care about rec-\u003ecounter * rec-\u003ecounter overflow because\nrec-\u003etime * rec-\u003etime overflow will likely happen earlier.",
  "id": "GHSA-cjrr-3f69-p92j",
  "modified": "2025-11-03T21:33:20Z",
  "published": "2025-04-01T18:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21898"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d738b53ed6cddb68e68c9874520a4bf846163b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b3d32f607f0478b414b16516cf27f9170cf66c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/746cc474a95473591853927b3a9792a2d671155b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/992775227843c9376773784b8b362add44592ad7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9cdac46fa7e854e587eb5f393fe491b6d7a9bdf6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1a7eb89ca0b89dc1c326eeee2596f263291aca3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca381f60a3bb7cfaa618d73ca411610bd7fc3149"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f58a3f8e284d0bdf94164a8e61cd4e70d337a1a3"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "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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Detection rules are retrieved from Rulezet.