{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-80555",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-80555"
  ],
  "published": "2026-08-26T14:37:59Z",
  "summary": "s390/vfio_ccw: Free all memory if cp_init() fails",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Free all memory if cp_init() fails\n\nThe routine cp_free() is called to unpin/free any memory once an I/O\nis completed successfully, or if cp_prefetch() fails. But if cp_init()\nfails, and cp->initialized is not enabled, the same routine cannot be\nused to free all the memory.\n\nAn attempt to address this exists in ccwchain_handle_ccw(), where a\nsingle call to ccwchain_free() is made for the currently-processed\nCCW segment. But this will leak other segments (created as a result\nof a Transfer in Channel) that had been allocated as part of the same\nchannel program.\n\nAddress this by performing the cleanup outside of the recursive\nccwchain_handle_ccw()/ccwchain_loop_tic() logic.",
  "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": "6.1.185",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-80555"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/276bd7ed34d56c48c65c43c0b08f2ee77029b2fa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f9bcff265556796834122f95de16d52a8375206c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/17e01e342af74de12899c206dcc9ec90684703aa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/152fcb74a26804b70909381c6acc90595a0ae1c1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6a917199aaf97904f5619afe3dfdacb155b03e8c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/32e3d364a7b8295120d37e6a6bd433d2de26f748"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4699b54fada156534cbb39834d47fc9374d7a1f5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/74186c2968f8f756ac3226b545b598457c910c75"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-27T12:40:42Z"
  }
}