ghsa-m44g-hq47-38xw
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-06-04 15:30
Details

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

drm/nouveau: Fix WARN_ON in nouveau_fence_context_kill()

Nouveau is mostly designed in a way that it's expected that fences only ever get signaled through nouveau_fence_signal(). However, in at least one other place, nouveau_fence_done(), can signal fences, too. If that happens (race) a signaled fence remains in the pending list for a while, until it gets removed by nouveau_fence_update().

Should nouveau_fence_context_kill() run in the meantime, this would be a bug because the function would attempt to set an error code on an already signaled fence.

Have nouveau_fence_context_kill() check for a fence being signaled.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37930"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:29Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: Fix WARN_ON in nouveau_fence_context_kill()\n\nNouveau is mostly designed in a way that it\u0027s expected that fences only\never get signaled through nouveau_fence_signal(). However, in at least\none other place, nouveau_fence_done(), can signal fences, too. If that\nhappens (race) a signaled fence remains in the pending list for a while,\nuntil it gets removed by nouveau_fence_update().\n\nShould nouveau_fence_context_kill() run in the meantime, this would be\na bug because the function would attempt to set an error code on an\nalready signaled fence.\n\nHave nouveau_fence_context_kill() check for a fence being signaled.",
  "id": "GHSA-m44g-hq47-38xw",
  "modified": "2025-06-04T15:30:28Z",
  "published": "2025-05-20T18:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37930"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0453825167ecc816ec15c736e52316f69db0deb9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/126f5c6e0cb84e5c6f7a3a856d799d85668fb38e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ec0f5f6d4768f292c8406ed92fa699f184577e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39d6e889c0b19a2c79e1c74c843ea7c2d0f99c28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47ca11836c35c5698088fd87f7fb4b0ffa217e17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b771b2017260ffc3a8d4e81266619649bffcb242"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbe5679f30d7690a9b6838a583b9690ea73fe0e9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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