{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "43db6366fc2de02050e66389f5628d3fdc9af10a"
            },
            {
              "fixed": "d36520e5da8bf87265b334def0daaadf3603cc62"
            },
            {
              "fixed": "4b45d7836b9526b8776af5f29219615be9417230"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68423.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: virt_concat: fix use-after-free in mtd_virt_concat_destroy()\n\nmtd_concat_destroy() frees item-\u003econcat so calling\nmtd_virt_concat_put_mtd_devices(item-\u003econcat) after that leads to a\nuse-after-free.\n\nFix it by moving mtd_virt_concat_put_mtd_devices() before\nmtd_concat_destroy().",
  "id": "CVE-2026-68423",
  "modified": "2026-08-18T03:31:11.643271813Z",
  "published": "2026-08-10T12:04:43.942Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b45d7836b9526b8776af5f29219615be9417230"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d36520e5da8bf87265b334def0daaadf3603cc62"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68423.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68423"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "mtd: virt_concat: fix use-after-free in mtd_virt_concat_destroy()"
}