ghsa-99r7-2gxr-89fw
Vulnerability from github
Published
2025-10-22 15:31
Modified
2025-10-22 15:31
Details

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

blk-throttle: prevent overflow while calculating wait time

There is a problem found by code review in tg_with_in_bps_limit() that 'bps_limit * jiffy_elapsed_rnd' might overflow. Fix the problem by calling mul_u64_u64_div_u64() instead.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50580"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-22T14:15:43Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-throttle: prevent overflow while calculating wait time\n\nThere is a problem found by code review in tg_with_in_bps_limit() that\n\u0027bps_limit * jiffy_elapsed_rnd\u0027 might overflow. Fix the problem by\ncalling mul_u64_u64_div_u64() instead.",
  "id": "GHSA-99r7-2gxr-89fw",
  "modified": "2025-10-22T15:31:10Z",
  "published": "2025-10-22T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50580"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19c010ae44f0ce52b5436080492a61a092ee0cf4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70b2adb1d698fbc63d3b3848c452524dc15872c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d6bbaada2e0a65f9012ac4c2506460160e7237a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca67b0563b39e79290c23e509319c178b9ca9104"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc6f0855bf8d9b729df28ff443ced7350c380dbd"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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