CVE-2025-38404 (GCVE-0-2025-38404)
Vulnerability from cvelistv5
Published
2025-07-25 13:09
Modified
2025-07-28 04:21
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: e0359c66c1beccbe90119a63391678eabda38007
Version: e3fb6c2c3939b4aad203cacdd613a62ce1fd032c
Version: 56846793f105cf2b39ecbde4f3ae86342091f6fc
Version: 8e8a69b1f8c59f0505f8a1c0fb77191f27b75011
Version: 8851e40587013db00b71d4aeaae30f5fd59b0eec
Version: 10cc2cfd3e5d0e0ec7590c4bee8bcea10e5492c4
Version: 8f6a4fa7b663468bb304cb885b93326e025ae005
Version: b4b38ffb38c91afd4dc387608db26f6fc34ed40b
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   Linux Linux Version: 6.1.143   ≤
Version: 6.6.96   ≤
Version: 6.12.36   ≤
Version: 6.15.5   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/altmodes/displayport.c"
          ],
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/altmodes/displayport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.1.144",
              "status": "affected",
              "version": "6.1.143",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.97",
              "status": "affected",
              "version": "6.6.96",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.37",
              "status": "affected",
              "version": "6.12.36",
              "versionType": "semver"
            },
            {
              "lessThan": "6.15.6",
              "status": "affected",
              "version": "6.15.5",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.144",
                  "versionStartIncluding": "6.1.143",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.97",
                  "versionStartIncluding": "6.6.96",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.37",
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                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.6",
                  "versionStartIncluding": "6.15.5",
                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:21:13.683Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/749d9076735fb497aae60fbea9fff563f9ea3254"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb08fca56f1f39e4038cb9bac9864464b13b00aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/7be0d1ea71f52595499da39cea484a895e8ed042"
        },
        {
          "url": "https://git.kernel.org/stable/c/76cf1f33e7319fe74c94ac92f9814094ee8cc84b"
        },
        {
          "url": "https://git.kernel.org/stable/c/63cff9f57e86b2dc25d7487ca0118df89a665296"
        },
        {
          "url": "https://git.kernel.org/stable/c/c782f98eef14197affa8a7b91e6981420f109ea9"
        },
        {
          "url": "https://git.kernel.org/stable/c/80c25d7916a44715338d4f8924c8e52af50d0b9f"
        },
        {
          "url": "https://git.kernel.org/stable/c/099cf1fbb8afc3771f408109f62bdec66f85160e"
        }
      ],
      "title": "usb: typec: displayport: Fix potential deadlock",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38404",
    "datePublished": "2025-07-25T13:09:25.822Z",
    "dateReserved": "2025-04-16T04:51:24.012Z",
    "dateUpdated": "2025-07-28T04:21:13.683Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38404\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T14:15:31.950\",\"lastModified\":\"2025-07-25T15:29:19.837\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/099cf1fbb8afc3771f408109f62bdec66f85160e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/63cff9f57e86b2dc25d7487ca0118df89a665296\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/749d9076735fb497aae60fbea9fff563f9ea3254\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/76cf1f33e7319fe74c94ac92f9814094ee8cc84b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7be0d1ea71f52595499da39cea484a895e8ed042\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/80c25d7916a44715338d4f8924c8e52af50d0b9f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c782f98eef14197affa8a7b91e6981420f109ea9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb08fca56f1f39e4038cb9bac9864464b13b00aa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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