{"id":"CVE-2026-81018","revision":"8fb8989b04f343db8dd1af419b21fba8","records":[{"revision":"8fb8989b04f343db8dd1af419b21fba8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-81018","aliases":[],"title":"platform/x86: think-lmi: Free system certificate signatures","description":"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 ->signature and ->save_signature, which leak when the driver is\nremoved. Free the signatures to avoid leaking memory.","state":0,"publishedAt":"2026-09-11T19:43:06.08+00:00","modifiedAt":"2026-10-19T08:46:43.567+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/platform/x86/lenovo/think-lmi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5dcb5ef125907d09806509a9db8c6705041e0026\",\n                            \"lessThan\": \"9c28adde051fe76a7754856d0a414ab89adcaa4d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5dcb5ef125907d09806509a9db8c6705041e0026\",\n                            \"lessThan\": \"abbcc0354108cf47a6055b951182bf73520d0363\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5dcb5ef125907d09806509a9db8c6705041e0026\",\n                            \"lessThan\": \"abca989604f60fe29d7170431f819e28ec7d868a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/platform/x86/lenovo/think-lmi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/9c28adde051fe76a7754856d0a414ab89adcaa4d","https://git.kernel.org/stable/c/abbcc0354108cf47a6055b951182bf73520d0363","https://git.kernel.org/stable/c/abca989604f60fe29d7170431f819e28ec7d868a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-81018","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-81018","identifiers":["CVE-2026-81018"]},"retained":false,"historicalAffected":[]}],"coverage":[]}