ghsa-w939-6x76-94vc
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-05-22 15:34
Details

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

usb: typec: ucsi: displayport: Fix deadlock

This patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock functions to the UCSI driver. ucsi_con_mutex_lock ensures the connector mutex is only locked if a connection is established and the partner pointer is valid. This resolves a deadlock scenario where ucsi_displayport_remove_partner holds con->mutex waiting for dp_altmode_work to complete while dp_altmode_work attempts to acquire it.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37967"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T17:15:47Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: displayport: Fix deadlock\n\nThis patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock\nfunctions to the UCSI driver. ucsi_con_mutex_lock ensures the connector\nmutex is only locked if a connection is established and the partner pointer\nis valid. This resolves a deadlock scenario where\nucsi_displayport_remove_partner holds con-\u003emutex waiting for\ndp_altmode_work to complete while dp_altmode_work attempts to acquire it.",
  "id": "GHSA-w939-6x76-94vc",
  "modified": "2025-05-22T15:34:48Z",
  "published": "2025-05-20T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37967"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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