{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-31755",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-31755"
  ],
  "published": "2026-05-01T14:17:31Z",
  "summary": "usb: cdns3: gadget: fix NULL pointer dereference in ep_queue",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: gadget: fix NULL pointer dereference in ep_queue\n\nWhen the gadget endpoint is disabled or not yet configured, the ep->desc\npointer can be NULL. This leads to a NULL pointer dereference when\n__cdns3_gadget_ep_queue() is called, causing a kernel crash.\n\nAdd a check to return -ESHUTDOWN if ep->desc is NULL, which is the\nstandard return code for unconfigured endpoints.\n\nThis prevents potential crashes when ep_queue is called on endpoints\nthat are not ready.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.168",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31755"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3cf0580a09d417eab41ce914a11f9cde3a121871"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222af"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-07-04T11:51:32Z"
  }
}