{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/fcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f28d7b5f1578a7501ab17b10643ed1e4f729187e",
              "status": "affected",
              "version": "46757a3e7d50dac923888e7fbe68377736f13c70",
              "versionType": "git"
            },
            {
              "lessThan": "3ab06151ffcb8c3aeb8f78508658b6c0f05be932",
              "status": "affected",
              "version": "46757a3e7d50dac923888e7fbe68377736f13c70",
              "versionType": "git"
            },
            {
              "lessThan": "e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c",
              "status": "affected",
              "version": "46757a3e7d50dac923888e7fbe68377736f13c70",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/fcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: FCP: Fix NULL pointer dereference in interface lookup\n\nA malformed USB device can provide a vendor-specific interface without\nany endpoint descriptors. fcp_find_fc_interface() currently selects the\nfirst vendor-specific interface and reads endpoint 0 from it, without\nchecking whether the interface actually has any endpoints.\n\nWhen bNumEndpoints is zero, no endpoint array is allocated for the parsed\nalternate setting, so get_endpoint(..., 0) yields an invalid endpoint\ndescriptor pointer. Dereferencing it through usb_endpoint_num() then\ntriggers a NULL pointer dereference.\n\nSkip vendor-specific interfaces that do not have any endpoints."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:14:00.240Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f28d7b5f1578a7501ab17b10643ed1e4f729187e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ab06151ffcb8c3aeb8f78508658b6c0f05be932"
        },
        {
          "url": "https://git.kernel.org/stable/c/e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c"
        }
      ],
      "title": "ALSA: FCP: Fix NULL pointer dereference in interface lookup",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72403",
    "datePublished": "2026-08-15T05:56:27.464Z",
    "dateReserved": "2026-08-09T03:40:39.925Z",
    "dateUpdated": "2026-08-17T05:14:00.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}