ghsa-95vc-3fw2-mxm8
Vulnerability from github
Published
2025-05-01 15:31
Modified
2025-05-01 15:31
Details

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

drm/imagination: take paired job reference

For paired jobs, have the fragment job take a reference on the geometry job, so that the geometry job cannot be freed until the fragment job has finished with it.

The geometry job structure is accessed when the fragment job is being prepared by the GPU scheduler. Taking the reference prevents the geometry job being freed until the fragment job no longer requires it.

Fixes a use after free bug detected by KASAN:

[ 124.256386] BUG: KASAN: slab-use-after-free in pvr_queue_prepare_job+0x108/0x868 [powervr] [ 124.264893] Read of size 1 at addr ffff0000084cb960 by task kworker/u16:4/63

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37763"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T14:15:38Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: take paired job reference\n\nFor paired jobs, have the fragment job take a reference on the\ngeometry job, so that the geometry job cannot be freed until\nthe fragment job has finished with it.\n\nThe geometry job structure is accessed when the fragment job is being\nprepared by the GPU scheduler. Taking the reference prevents the\ngeometry job being freed until the fragment job no longer requires it.\n\nFixes a use after free bug detected by KASAN:\n\n[  124.256386] BUG: KASAN: slab-use-after-free in pvr_queue_prepare_job+0x108/0x868 [powervr]\n[  124.264893] Read of size 1 at addr ffff0000084cb960 by task kworker/u16:4/63",
  "id": "GHSA-95vc-3fw2-mxm8",
  "modified": "2025-05-01T15:31:43Z",
  "published": "2025-05-01T15:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37763"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ba2abe154ef68f9612eee9d6fbfe53a1736b064"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5a6f97a78e2fc008fd6503b7040cb7e1120b873"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c90b95e12eb88d23740e5ea2c43d71675d17ac8d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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