{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "db8e5d17ac03a65e2e0ee0ba50bf61a99741d871"
            },
            {
              "fixed": "3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99"
            },
            {
              "fixed": "d3b1e38404b22df5a1f93019f2bb656feaad5ae3"
            },
            {
              "fixed": "79ea5e0c4c8a9842ae85f45062d947b3297dfc07"
            },
            {
              "fixed": "d597fa1273802941c7801202135976fecc29672b"
            },
            {
              "fixed": "649badf3a2fd8929e40198603a2cb21b74c21700"
            },
            {
              "fixed": "988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf"
            },
            {
              "fixed": "9f5f9a78fedc45bc29d6a0a64e3a3472361afae5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.2.0"
            },
            {
              "fixed": "5.15.218"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.184"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.153"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.105"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.46"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Ensure index for read/write regions are within range\n\nThe introduction of the capability chain rightly clamped the\nregion indexes to the range of the capabilities itself, but\nneglected to do so for the existing read/write regions which\nshould also be enforced.",
  "id": "CVE-2026-80552",
  "modified": "2026-08-28T03:30:37.675679776Z",
  "published": "2026-08-26T14:37:21.178Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80552"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "s390/vfio_ccw: Ensure index for read/write regions are within range"
}