{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b6faa9c613787b894913638a76030018f6d62d54"
            },
            {
              "fixed": "06322da06116f1ee52271dd4d84dc69580087df7"
            },
            {
              "fixed": "16329b510f76e5b824e05bf8add8b29850f1f16f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97423.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Validate partition index before array access\n\nconstruct_region() reads cxled-\u003epart and uses it to index\ncxlds-\u003epart[] without checking for a negative value. If the\npartition was never resolved, part remains at its initial value\nof -1, causing an out-of-bounds array access.\n\nAdd a guard to return -EBUSY when part is negative.\n\nThe check was dropped during a merge.",
  "id": "CVE-2026-97423",
  "modified": "2026-09-27T03:31:01.701030552Z",
  "published": "2026-09-24T16:03:35.458Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/06322da06116f1ee52271dd4d84dc69580087df7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16329b510f76e5b824e05bf8add8b29850f1f16f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97423.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97423"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "cxl/region: Validate partition index before array access"
}