{"api_version":"1","generated_at":"2026-09-16T19:10:43+00:00","cve":"CVE-2026-81018","urls":{"html":"https://cve.report/CVE-2026-81018","api":"https://cve.report/api/cve/CVE-2026-81018.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-81018","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-81018"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:19:10","updated_at":"2026-09-11 20:19:10"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9c28adde051fe76a7754856d0a414ab89adcaa4d","name":"https://git.kernel.org/stable/c/9c28adde051fe76a7754856d0a414ab89adcaa4d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/abbcc0354108cf47a6055b951182bf73520d0363","name":"https://git.kernel.org/stable/c/abbcc0354108cf47a6055b951182bf73520d0363","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/abca989604f60fe29d7170431f819e28ec7d868a","name":"https://git.kernel.org/stable/c/abca989604f60fe29d7170431f819e28ec7d868a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-81018","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81018","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dcb5ef125907d09806509a9db8c6705041e0026 9c28adde051fe76a7754856d0a414ab89adcaa4d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dcb5ef125907d09806509a9db8c6705041e0026 abbcc0354108cf47a6055b951182bf73520d0363 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dcb5ef125907d09806509a9db8c6705041e0026 abca989604f60fe29d7170431f819e28ec7d868a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.50 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.4 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"81018","cve":"CVE-2026-81018","epss":"0.001320000","percentile":"0.030900000","score_date":"2026-09-14","updated_at":"2026-09-15 00:00:43"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/platform/x86/lenovo/think-lmi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9c28adde051fe76a7754856d0a414ab89adcaa4d","status":"affected","version":"5dcb5ef125907d09806509a9db8c6705041e0026","versionType":"git"},{"lessThan":"abbcc0354108cf47a6055b951182bf73520d0363","status":"affected","version":"5dcb5ef125907d09806509a9db8c6705041e0026","versionType":"git"},{"lessThan":"abca989604f60fe29d7170431f819e28ec7d868a","status":"affected","version":"5dcb5ef125907d09806509a9db8c6705041e0026","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/platform/x86/lenovo/think-lmi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.50","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.50","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:43:06.080Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9c28adde051fe76a7754856d0a414ab89adcaa4d"},{"url":"https://git.kernel.org/stable/c/abbcc0354108cf47a6055b951182bf73520d0363"},{"url":"https://git.kernel.org/stable/c/abca989604f60fe29d7170431f819e28ec7d868a"}],"title":"platform/x86: think-lmi: Free system certificate signatures","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-81018","datePublished":"2026-09-11T19:43:06.080Z","dateReserved":"2026-08-26T14:34:25.813Z","dateUpdated":"2026-09-11T19:43:06.080Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:19:10","lastModifiedDate":"2026-09-11 20:19:10","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"81018","Ordinal":"1","Title":"platform/x86: think-lmi: Free system certificate signatures","CVE":"CVE-2026-81018","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"81018","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"platform/x86: think-lmi: Free system certificate signatures"}]}}}