ghsa-7rj5-g3mr-xmp6
Vulnerability from github
Published
2025-09-05 18:31
Modified
2025-09-05 18:31
Details

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

media: mt9m114: Fix deadlock in get_frame_interval/set_frame_interval

Getting / Setting the frame interval using the V4L2 subdev pad ops get_frame_interval/set_frame_interval causes a deadlock, as the subdev state is locked in the [1] but also in the driver itself.

In [2] it's described that the caller is responsible to acquire and release the lock in this case. Therefore, acquiring the lock in the driver is wrong.

Remove the lock acquisitions/releases from mt9m114_ifp_get_frame_interval() and mt9m114_ifp_set_frame_interval().

[1] drivers/media/v4l2-core/v4l2-subdev.c - line 1129 [2] Documentation/driver-api/media/v4l2-subdev.rst

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39712"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-05T18:15:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mt9m114: Fix deadlock in get_frame_interval/set_frame_interval\n\nGetting / Setting the frame interval using the V4L2 subdev pad ops\nget_frame_interval/set_frame_interval causes a deadlock, as the\nsubdev state is locked in the [1] but also in the driver itself.\n\nIn [2] it\u0027s described that the caller is responsible to acquire and\nrelease the lock in this case. Therefore, acquiring the lock in the\ndriver is wrong.\n\nRemove the lock acquisitions/releases from mt9m114_ifp_get_frame_interval()\nand mt9m114_ifp_set_frame_interval().\n\n[1] drivers/media/v4l2-core/v4l2-subdev.c - line 1129\n[2] Documentation/driver-api/media/v4l2-subdev.rst",
  "id": "GHSA-7rj5-g3mr-xmp6",
  "modified": "2025-09-05T18:31:27Z",
  "published": "2025-09-05T18:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39712"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d23b548d71e5d76955fdf1d73addd8f6494f602"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/298d1471cf83d5a2a05970e41822a2403f451086"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41b97490a1656bdc7038d6345a84b08d45deafc6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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