{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "46757a3e7d50dac923888e7fbe68377736f13c70"
            },
            {
              "fixed": "f28d7b5f1578a7501ab17b10643ed1e4f729187e"
            },
            {
              "fixed": "3ab06151ffcb8c3aeb8f78508658b6c0f05be932"
            },
            {
              "fixed": "e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72403.json"
  },
  "details": "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.",
  "id": "CVE-2026-72403",
  "modified": "2026-08-16T03:31:06.380575246Z",
  "published": "2026-08-15T05:56:27.464Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ab06151ffcb8c3aeb8f78508658b6c0f05be932"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f28d7b5f1578a7501ab17b10643ed1e4f729187e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72403.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72403"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ALSA: FCP: Fix NULL pointer dereference in interface lookup"
}