ghsa-8295-hcjh-5w9p
Vulnerability from github
Published
2025-03-27 18:31
Modified
2025-04-15 18:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

drm/i915: Fix potential bit_17 double-free

A userspace with multiple threads racing I915_GEM_SET_TILING to set the tiling to I915_TILING_NONE could trigger a double free of the bit_17 bitmask. (Or conversely leak memory on the transition to tiled.) Move allocation/free'ing of the bitmask within the section protected by the obj lock.

[tursulin: Correct fixes tag and added cc stable.] (cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52930"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:42Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix potential bit_17 double-free\n\nA userspace with multiple threads racing I915_GEM_SET_TILING to set the\ntiling to I915_TILING_NONE could trigger a double free of the bit_17\nbitmask.  (Or conversely leak memory on the transition to tiled.)  Move\nallocation/free\u0027ing of the bitmask within the section protected by the\nobj lock.\n\n[tursulin: Correct fixes tag and added cc stable.]\n(cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)",
  "id": "GHSA-8295-hcjh-5w9p",
  "modified": "2025-04-15T18:31:41Z",
  "published": "2025-03-27T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52930"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0769f997a7b6d5cb8336db0b4ec3d2d311b8097c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7057a8f126f14f14b040faecfa220fd27c6c2f85"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b591abac78e25269b12e3d7170c99463f8c5cb02"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3ebc3e23bd9028a8a9a26cbc5985f99be445f65"
    }
  ],
  "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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