usb: typec: ucsi: displayport: Fix deadlock

{
  "id": "bc70b86e169fa96ef5df903467381ea691944476ba184afdf25032252a234c13",
  "url": "https://osv.dev/vulnerability/CVE-2025-37967",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2025-37967",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.184",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.140",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.92",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-37967",
      "aliases": [
        "CVE-2025-37967"
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      "affected": [
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                  "fixed": "5924b324468845fc795bd76f588f51d7ab4f202d"
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                  "fixed": "61fc1a8e1e10cc784cab5829930838aaf1d37af5"
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                {
                  "fixed": "364618c89d4c57c85e5fc51a2446cd939bf57802"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37967.json"
          }
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        {
          "ranges": [
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37967.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.454683030Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802",
        "https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d",
        "https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5",
        "https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d",
        "https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7",
        "https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c",
        "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37967.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37967",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37967.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37967",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 495999,
  "published_at": "2025-05-20T16:47:15.473+00:00"
}