{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98476",
  "modified": "2026-10-19T04:30:01Z",
  "upstream": [
    "CVE-2026-98476"
  ],
  "published": "2026-10-18T15:22:13Z",
  "summary": "s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()\n\nThe channel path registry entry associated with a CHPID may be removed\nwhile the subchannel's PMCW still references that CHPID. In this case,\nchpid_to_chp() can return NULL, leading to a NULL pointer dereference.\n\nAdd the missing NULL check before dereferencing the returned pointer.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98476"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9d8b21820caed9128945fffcedf03e2a4c21eee2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5fc54e04dad90b15d0430118b3f288a1d64e66c9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/27e396a89f76f742abdbe9f8c4a58a6e806fdf59"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dbf30e661ceb9a52c94c85719716391dcc29142a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5e006ac90a4d331db1dd712b91fec849b45ffc01"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c3bbcb32deecc06ebb1762398399b566d5ff2fc9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/44b16b02608058fc72198ac0205969f0f43065df"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5b76268dac968612f7283d59b539036de955b7d9"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-18T15:22:13Z"
  }
}