{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-31759",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-31759"
  ],
  "published": "2026-05-01T14:17:31Z",
  "summary": "usb: ulpi: fix double free in ulpi_register_interface() error path",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ulpi: fix double free in ulpi_register_interface() error path\n\nWhen device_register() fails, ulpi_register() calls put_device() on\nulpi->dev.\n\nThe device release callback ulpi_dev_release() drops the OF node\nreference and frees ulpi, but the current error path in\nulpi_register_interface() then calls kfree(ulpi) again, causing a\ndouble free.\n\nLet put_device() handle the cleanup through ulpi_dev_release() and\navoid freeing ulpi again in ulpi_register_interface().",
  "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-2026-31759"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}