{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-40314",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-40314"
  ],
  "published": "2025-12-08T00:47:38Z",
  "summary": "usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget\n\nIn the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget\nstructure (pdev->gadget) was freed before its endpoints.\nThe endpoints are linked via the ep_list in the gadget structure.\nFreeing the gadget first leaves dangling pointers in the endpoint list.\nWhen the endpoints are subsequently freed, this results in a use-after-free.\n\nFix:\nBy separating the usb_del_gadget_udc() operation into distinct \"del\" and\n\"put\" steps, cdnsp_gadget_free_endpoints() can be executed prior to the\nfinal release of the gadget structure with usb_put_gadget().\n\nA patch similar to bb9c74a5bd14(\"usb: dwc3: gadget: Free gadget structure\n only after freeing endpoints\").",
  "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": "6.1.159",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-40314"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0cf9a50af91fbdac3849f8d950e883a3eaa3ecea"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/37158ce6ba964b62d1e3eebd11f03c6900a52dd1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ea37884097a0931abb8e11e40eacfb25e9fdb5e9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9c52f01429c377a2d32cafc977465f37b5384f77"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fdf573c517627a96f5040f988e9b21267806be5c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/87c5ff5615dc0a37167e8faf3adeeddc6f1344a3"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}