ghsa-w939-vjpg-j262
Vulnerability from github
Published
2025-10-07 18:31
Modified
2025-10-07 18:31
Details

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

clk: microchip: fix potential UAF in auxdev release callback

Similar to commit 1c11289b34ab ("peci: cpu: Fix use-after-free in adev_release()"), the auxiliary device is not torn down in the correct order. If auxiliary_device_add() fails, the release callback will be called twice, resulting in a UAF. Due to timing, the auxdev code in this driver "took inspiration" from the aforementioned commit, and thus its bugs too!

Moving auxiliary_device_uninit() to the unregister callback instead avoids the issue.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-53636"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T16:15:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: microchip: fix potential UAF in auxdev release callback\n\nSimilar to commit 1c11289b34ab (\"peci: cpu: Fix use-after-free in\nadev_release()\"), the auxiliary device is not torn down in the correct\norder. If auxiliary_device_add() fails, the release callback will be\ncalled twice, resulting in a UAF. Due to timing, the auxdev code in this\ndriver \"took inspiration\" from the aforementioned commit, and thus its\nbugs too!\n\nMoving auxiliary_device_uninit() to the unregister callback instead\navoids the issue.",
  "id": "GHSA-w939-vjpg-j262",
  "modified": "2025-10-07T18:31:09Z",
  "published": "2025-10-07T18:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53636"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b4052aa956e11bcd19e50ca559eb38dcb46201b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7455b7007b9e93bcc2bc9c1c6c73a228e3152069"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/934406b2d42eaf3fc57f5546cc68ff7ab9680bb3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7d6dacf39ed102d7667721ca1700022c9c8b11a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.