{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "384c57ec720597f8104f69082cdd261abb998b80"
            },
            {
              "fixed": "9c8bef223c6e991276188d30d74bdb2cbd8be652"
            },
            {
              "fixed": "ae4ff9dead5efa2025eddfcdb29411432bf40a7c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43431.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix NULL pointer dereference when reading portli debugfs files\n\nMichal reported and debgged a NULL pointer dereference bug in the\nrecently added portli debugfs files\n\nOops is caused when there are more port registers counted in\nxhci-\u003emax_ports than ports reported by Supported Protocol capabilities.\nThis is possible if max_ports is more than maximum port number, or\nif there are gaps between ports of different speeds the 'Supported\nProtocol' capabilities.\n\nIn such cases port-\u003erhub will be NULL so we can't reach xhci behind it.\nAdd an explicit NULL check for this case, and print portli in hex\nwithout dereferencing port-\u003erhub.",
  "id": "CVE-2026-43431",
  "modified": "2026-07-08T05:38:45.430367365Z",
  "published": "2026-05-08T14:22:03.298Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c8bef223c6e991276188d30d74bdb2cbd8be652"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae4ff9dead5efa2025eddfcdb29411432bf40a7c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43431.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43431"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "xhci: Fix NULL pointer dereference when reading portli debugfs files"
}