{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e521d16e76cd9ea99c585e064f4e7daf657b1451"
            },
            {
              "fixed": "40a984dd0602e238ad893b167751620e751d1199"
            },
            {
              "fixed": "0c3887a134f191723b53e2a47e501b534c8723ee"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63839.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()\n\nlwmi_dev_evaluate_int() leaks output.pointer when retval == NULL (found\nby sashiko.dev [1]).\n\nFix it by moving `ret_obj = output.pointer' outside of the `if (retval)'\nblock so that it is always freed by the __free cleanup callback.\n\nNo functional change intended.",
  "id": "CVE-2026-63839",
  "modified": "2026-07-21T03:41:53.293661432Z",
  "published": "2026-07-19T14:04:35.146Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c3887a134f191723b53e2a47e501b534c8723ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40a984dd0602e238ad893b167751620e751d1199"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63839.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63839"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()"
}