GHSA-QFPX-FGCV-PJX6

Vulnerability from github – Published: 2025-05-02 15:31 – Updated: 2025-11-06 21:31
VLAI?
Details

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

codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue().

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-37798"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-02T15:15:48Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncodel: remove sch-\u003eq.qlen check before qdisc_tree_reduce_backlog()\n\nAfter making all -\u003eqlen_notify() callbacks idempotent, now it is safe to\nremove the check of qlen!=0 from both fq_codel_dequeue() and\ncodel_qdisc_dequeue().",
  "id": "GHSA-qfpx-fgcv-pjx6",
  "modified": "2025-11-06T21:31:17Z",
  "published": "2025-05-02T15:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37798"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/342debc12183b51773b3345ba267e9263bdfaaef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d55144b12e742404bb3f8fee6038bafbf45619d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a742a9506849d1c1aa71e36c89855ceddc7d58e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/829c49b6b2ff45b043739168fd1245e4e1a91a30"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc71a757da78dd4aa1b4a9b19cb011833730ccf2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e73c838c80dccb9e4f19becc11d9f3cb4a27d483"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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