{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38483",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38483"
  ],
  "published": "2025-07-28T11:22:31Z",
  "summary": "comedi: das16m1: Fix bit shift out of bounds",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: das16m1: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\t/* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */\n\tif ((1 << it->options[1]) & 0xdcfc) {\n\nHowever, `it->options[i]` is an unchecked `int` value from userspace, so\nthe shift amount could be negative or out of bounds.  Fix the test by\nrequiring `it->options[1]` to be within bounds before proceeding with\nthe original test.",
  "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": "6.1.147",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38483"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/539bdff832adac9ea653859fa0b6bc62e743329c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d1291c69f46d6572b2cf75960dd8975d7ab2176b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b3c95fa508e5dc3da60520eea92a5241095ceef1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}