{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5dcb5ef125907d09806509a9db8c6705041e0026"
            },
            {
              "fixed": "9c28adde051fe76a7754856d0a414ab89adcaa4d"
            },
            {
              "fixed": "abbcc0354108cf47a6055b951182bf73520d0363"
            },
            {
              "fixed": "abca989604f60fe29d7170431f819e28ec7d868a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81018.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: think-lmi: Free system certificate signatures\n\nMulti-certificate support also allows the system authentication object\nto store -\u003esignature and -\u003esave_signature, which leak when the driver is\nremoved. Free the signatures to avoid leaking memory.",
  "id": "CVE-2026-81018",
  "modified": "2026-09-13T03:30:27.377134768Z",
  "published": "2026-09-11T19:43:06.080Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c28adde051fe76a7754856d0a414ab89adcaa4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abbcc0354108cf47a6055b951182bf73520d0363"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abca989604f60fe29d7170431f819e28ec7d868a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81018.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81018"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "platform/x86: think-lmi: Free system certificate signatures"
}