Vulnerability-Lookup

GHSA-W939-6X76-94VC

Vulnerability from github – Published: 2025-05-20 18:30 – Updated: 2025-12-16 21:30

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37967"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T17:15:47Z",
    "severity": "MODERATE"
  },
  "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": "2025-12-16T21:30:49Z",
  "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"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-37967 (GCVE-0-2025-37967)

Vulnerability from cvelistv5 – Published: 2025-05-20 16:47 – Updated: 2026-05-11 21:18

Title

usb: typec: ucsi: displayport: Fix deadlock

Summary

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.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/f4bd982563c2fd41e…
https://git.kernel.org/stable/c/f32451ca4cb7dc53f…
https://git.kernel.org/stable/c/962ce9028ca6eb450…
https://git.kernel.org/stable/c/5924b324468845fc7…
https://git.kernel.org/stable/c/61fc1a8e1e10cc784…
https://git.kernel.org/stable/c/364618c89d4c57c85…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: af8622f6a585d8d82b11cd7987e082861fd0edd3 , < f4bd982563c2fd41ec9ca6c517c392d759db801c (git) Affected: af8622f6a585d8d82b11cd7987e082861fd0edd3 , < f32451ca4cb7dc53f2a0e2e66b84d34162747eb7 (git) Affected: af8622f6a585d8d82b11cd7987e082861fd0edd3 , < 962ce9028ca6eb450d5c205238a3ee27de9d214d (git) Affected: af8622f6a585d8d82b11cd7987e082861fd0edd3 , < 5924b324468845fc795bd76f588f51d7ab4f202d (git) Affected: af8622f6a585d8d82b11cd7987e082861fd0edd3 , < 61fc1a8e1e10cc784cab5829930838aaf1d37af5 (git) Affected: af8622f6a585d8d82b11cd7987e082861fd0edd3 , < 364618c89d4c57c85e5fc51a2446cd939bf57802 (git)
Linux	Linux	Affected: 5.2 Unaffected: 0 , < 5.2 (semver) Unaffected: 5.15.184 , ≤ 5.15.* (semver) Unaffected: 6.1.140 , ≤ 6.1.* (semver) Unaffected: 6.6.92 , ≤ 6.6.* (semver) Unaffected: 6.12.30 , ≤ 6.12.* (semver) Unaffected: 6.14.7 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

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JSON

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{
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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:57:51.142Z",
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
          }
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          ],
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          ],
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          "vendor": "Linux",
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              "version": "5.2"
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              "version": "0",
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              "status": "unaffected",
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              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:18:42.177Z",
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    "state": "PUBLISHED"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.