ghsa-5wgv-v8w4-hvpr
Vulnerability from github
Published
2024-10-21 18:30
Modified
2024-10-25 15:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs

There are some cases, such as the one uncovered by Commit 46d4efcccc68 ("drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails") where

msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL);

is called on gpu->pdev == NULL, as the GPU device has not been fully initialized yet.

Turns out that there's more than just the aforementioned path that causes this to happen (e.g. the case when there's speedbin data in the catalog, but opp-supported-hw is missing in DT).

Assigning msm_gpu->pdev earlier seems like the least painful solution to this, therefore do so.

Patchwork: https://patchwork.freedesktop.org/patch/602742/

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-49901"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:12Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/adreno: Assign msm_gpu-\u003epdev earlier to avoid nullptrs\n\nThere are some cases, such as the one uncovered by Commit 46d4efcccc68\n(\"drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails\")\nwhere\n\nmsm_gpu_cleanup() : platform_set_drvdata(gpu-\u003epdev, NULL);\n\nis called on gpu-\u003epdev == NULL, as the GPU device has not been fully\ninitialized yet.\n\nTurns out that there\u0027s more than just the aforementioned path that\ncauses this to happen (e.g. the case when there\u0027s speedbin data in the\ncatalog, but opp-supported-hw is missing in DT).\n\nAssigning msm_gpu-\u003epdev earlier seems like the least painful solution\nto this, therefore do so.\n\nPatchwork: https://patchwork.freedesktop.org/patch/602742/",
  "id": "GHSA-5wgv-v8w4-hvpr",
  "modified": "2024-10-25T15:31:26Z",
  "published": "2024-10-21T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49901"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16007768551d5bfe53426645401435ca8d2ef54f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9288a9676c529ad9c856096db68fad812499bc4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9773737375b20070ea935203fd66cb9fa17c5acb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8ac2060597a5768e4699bb61d604b4c09927b85"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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