ghsa-whrv-p2hp-qr7f
Vulnerability from github
Published
2025-07-25 15:30
Modified
2025-07-25 15:30
Details

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

usb: typec: displayport: Fix potential deadlock

The deadlock can occur due to a recursive lock acquisition of cros_typec_altmode_data::mutex. The call chain is as follows: 1. cros_typec_altmode_work() acquires the mutex 2. typec_altmode_vdm() -> dp_altmode_vdm() -> 3. typec_altmode_exit() -> cros_typec_altmode_exit() 4. cros_typec_altmode_exit() attempts to acquire the mutex again

To prevent this, defer the typec_altmode_exit() call by scheduling it rather than calling it directly from within the mutex-protected context.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38404"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T14:15:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: displayport: Fix potential deadlock\n\nThe deadlock can occur due to a recursive lock acquisition of\n`cros_typec_altmode_data::mutex`.\nThe call chain is as follows:\n1. cros_typec_altmode_work() acquires the mutex\n2. typec_altmode_vdm() -\u003e dp_altmode_vdm() -\u003e\n3. typec_altmode_exit() -\u003e cros_typec_altmode_exit()\n4. cros_typec_altmode_exit() attempts to acquire the mutex again\n\nTo prevent this, defer the `typec_altmode_exit()` call by scheduling\nit rather than calling it directly from within the mutex-protected\ncontext.",
  "id": "GHSA-whrv-p2hp-qr7f",
  "modified": "2025-07-25T15:30:53Z",
  "published": "2025-07-25T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38404"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/099cf1fbb8afc3771f408109f62bdec66f85160e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63cff9f57e86b2dc25d7487ca0118df89a665296"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/749d9076735fb497aae60fbea9fff563f9ea3254"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76cf1f33e7319fe74c94ac92f9814094ee8cc84b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7be0d1ea71f52595499da39cea484a895e8ed042"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80c25d7916a44715338d4f8924c8e52af50d0b9f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c782f98eef14197affa8a7b91e6981420f109ea9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb08fca56f1f39e4038cb9bac9864464b13b00aa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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