{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38530",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38530"
  ],
  "published": "2025-08-16T11:14:15Z",
  "summary": "comedi: pcl812: Fix bit shift out of bounds",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: pcl812: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\tif ((1 << it->options[1]) & board->irq_bits) {\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.  Valid `it->options[1]` values that select the IRQ\nwill be in the range [1,15]. The value 0 explicitly disables the use of\ninterrupts.",
  "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-2025-38530"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/374d9b3eb4b08407997ef1fce96119d31e0c0bc4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0489c30d080f07cc7f09d04de723d8c2ccdb61ef"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/29ef03e5b84431171d6b77b822985b54bc44b793"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5bfa301e1e59a9b1a7b62a800b54852337c97416"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7e470d8efd10725b189ca8951973a8425932398a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a27e27eee313fe1c450b6af1e80e64412546cab4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/16c173abee315953fd17a279352fec4a1faee862"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b14b076ce593f72585412fc7fd3747e03a5e3632"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}