ghsa-gvx3-72r6-pv8h
Vulnerability from github
Published
2025-02-27 21:32
Modified
2025-02-27 21:32
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/panfrost: Job should reference MMU not file_priv

For a while now it's been allowed for a MMU context to outlive it's corresponding panfrost_priv, however the job structure still references panfrost_priv to get hold of the MMU context. If panfrost_priv has been freed this is a use-after-free which I've been able to trigger resulting in a splat.

To fix this, drop the reference to panfrost_priv in the job structure and add a direct reference to the MMU structure which is what's actually needed.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49359"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:12Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panfrost: Job should reference MMU not file_priv\n\nFor a while now it\u0027s been allowed for a MMU context to outlive it\u0027s\ncorresponding panfrost_priv, however the job structure still references\npanfrost_priv to get hold of the MMU context. If panfrost_priv has been\nfreed this is a use-after-free which I\u0027ve been able to trigger resulting\nin a splat.\n\nTo fix this, drop the reference to panfrost_priv in the job structure\nand add a direct reference to the MMU structure which is what\u0027s actually\nneeded.",
  "id": "GHSA-gvx3-72r6-pv8h",
  "modified": "2025-02-27T21:32:13Z",
  "published": "2025-02-27T21:32:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49359"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/472dd7ea5e19a1aeabf1711ddc756777e05ee7c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e516faf04317db2c46cbec4e3b78b4653a5b109"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c8e8cc91a6ffc79865108279a74fd57d9070a17"
    }
  ],
  "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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