CVE-2025-37967 (GCVE-0-2025-37967)
Vulnerability from cvelistv5
Published
2025-05-20 16:47
Modified
2025-05-26 05:24
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: af8622f6a585d8d82b11cd7987e082861fd0edd3
Version: af8622f6a585d8d82b11cd7987e082861fd0edd3
Version: af8622f6a585d8d82b11cd7987e082861fd0edd3
Version: af8622f6a585d8d82b11cd7987e082861fd0edd3
Version: af8622f6a585d8d82b11cd7987e082861fd0edd3
Version: af8622f6a585d8d82b11cd7987e082861fd0edd3
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/ucsi/displayport.c",
            "drivers/usb/typec/ucsi/ucsi.c",
            "drivers/usb/typec/ucsi/ucsi.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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        {
          "defaultStatus": "affected",
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          "programFiles": [
            "drivers/usb/typec/ucsi/displayport.c",
            "drivers/usb/typec/ucsi/ucsi.c",
            "drivers/usb/typec/ucsi/ucsi.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "5.2"
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              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.30",
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            {
              "lessThanOrEqual": "6.14.*",
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              "version": "6.14.7",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "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": "2025-05-26T05:24:45.417Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c"
        },
        {
          "url": "https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7"
        },
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          "url": "https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d"
        },
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          "url": "https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d"
        },
        {
          "url": "https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5"
        },
        {
          "url": "https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802"
        }
      ],
      "title": "usb: typec: ucsi: displayport: Fix deadlock",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37967",
    "datePublished": "2025-05-20T16:47:15.473Z",
    "dateReserved": "2025-04-16T04:51:23.974Z",
    "dateUpdated": "2025-05-26T05:24:45.417Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37967\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-20T17:15:47.130\",\"lastModified\":\"2025-05-22T13:15:56.110\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: typec: ucsi: displayport: Correcci\u00f3n de interbloqueo. Este parche incorpora las funciones ucsi_con_mutex_lock y ucsi_con_mutex_unlock al controlador UCSI. ucsi_con_mutex_lock garantiza que el mutex del conector solo se bloquee si se establece una conexi\u00f3n y el puntero del asociado es v\u00e1lido. Esto resuelve un escenario de interbloqueo donde ucsi_displayport_remove_partner mantiene con-\u0026gt;mutex esperando a que dp_altmode_work complete su ejecuci\u00f3n mientras dp_altmode_work intenta adquirirlo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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