GHSA-QQ33-46PR-RG4R

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32
VLAI
Details

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

intel_th: fix MSC output device reference leak

intel_th_output_open() looks up the output device with bus_find_device_by_devt(), which returns the device with a reference that must be dropped after use.

commit 95fc36a234da ("intel_th: fix device leak on output open()") attempted to drop the reference from intel_th_output_release(). However, a successful open replaces file->f_op with the output driver file operations before returning, so close runs the output driver release callback instead.

For MSC outputs, close runs intel_th_msc_release(), which only removes the per-file iterator and does not drop the device reference taken by intel_th_output_open(). Consequently, every successful MSC output open leaks one device reference.

Drop the device reference from intel_th_msc_release(), which is the release path actually used for MSC output files. Remove the now-unused intel_th_output_release() callback from intel_th_output_fops.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-68180"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:04Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: fix MSC output device reference leak\n\nintel_th_output_open() looks up the output device with\nbus_find_device_by_devt(), which returns the device with a reference that\nmust be dropped after use.\n\ncommit 95fc36a234da (\"intel_th: fix device leak on output open()\")\nattempted to drop the reference from intel_th_output_release(). However,\na successful open replaces file-\u003ef_op with the output driver file\noperations before returning, so close runs the output driver release\ncallback instead.\n\nFor MSC outputs, close runs intel_th_msc_release(), which only removes\nthe per-file iterator and does not drop the device reference taken by\nintel_th_output_open(). Consequently, every successful MSC output open\nleaks one device reference.\n\nDrop the device reference from intel_th_msc_release(), which is the\nrelease path actually used for MSC output files. Remove the now-unused\nintel_th_output_release() callback from intel_th_output_fops.",
  "id": "GHSA-qq33-46pr-rg4r",
  "modified": "2026-08-19T18:32:09Z",
  "published": "2026-08-10T15:33:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68180"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12ad4fad748e6e563ff4480f03b89134a41b5c37"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/141641a70ed337e54487f766ede745fc2ce44c42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26e27b8dcef1e4df6f30d8f25b3304a506d482b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/761b785a0cfbce43761227bc42a7f984f31f8921"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3a28f9cb82425fe0835048ed3677f321e780691"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/caba30eb8bd321c465ecfc7d850ee85f5b353496"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddcf2064d7ec5a8c9afa7cb74442320e443502bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df55842fddbcdb80e6dd16680439c0f780ed592e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.