{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38391",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38391"
  ],
  "published": "2025-07-25T12:55:41Z",
  "summary": "usb: typec: altmodes/displayport: do not index invalid pin_assignments",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmodes/displayport: do not index invalid pin_assignments\n\nA poorly implemented DisplayPort Alt Mode port partner can indicate\nthat its pin assignment capabilities are greater than the maximum\nvalue, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show\nwill cause a BRK exception due to an out of bounds array access.\n\nPrevent for loop in pin_assignment_show from accessing\ninvalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX\nvalue in typec_dp.h and using i < DP_PIN_ASSIGN_MAX as a loop\ncondition.",
  "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": "6.1.144",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38391"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790cee"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}