{"api_version":"1","generated_at":"2026-08-10T23:10:52+00:00","cve":"CVE-2026-68324","urls":{"html":"https://cve.report/CVE-2026-68324","api":"https://cve.report/api/cve/CVE-2026-68324.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68324","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68324"},"summary":{"title":"iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/intel: Fix out-of-bounds memset in dmar_latency_disable()\n\ndmar_latency_disable() intends to zero out only the single\nlatency_statistic entry for the given type, but the memset size was\ncomputed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire\narray starting from &lstat[type].\n\nWhen type > 0, this writes beyond the end of the allocated array,\ncorrupting adjacent memory.\n\nFix by using sizeof(*lstat) to clear only the target entry.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:22","updated_at":"2026-08-10 13:20:22"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57","name":"https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a","name":"https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3","name":"https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b","name":"https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa","name":"https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68324","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68324","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e 3078d82e7fe9048a2b90a992e71af7cd7ef881fa git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e 866a35735e56b9dc81cbc33899255134adf6d8b3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e d06fea9b85f038690f55e72fe0c45e113715a85a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e 0e28ca1c3204b51068579defc904a0dfba5e5c57 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e 754f8efe45f87e3a9c6871b645b2f9d46d1b407b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa","status":"affected","version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","versionType":"git"},{"lessThan":"866a35735e56b9dc81cbc33899255134adf6d8b3","status":"affected","version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","versionType":"git"},{"lessThan":"d06fea9b85f038690f55e72fe0c45e113715a85a","status":"affected","version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","versionType":"git"},{"lessThan":"0e28ca1c3204b51068579defc904a0dfba5e5c57","status":"affected","version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","versionType":"git"},{"lessThan":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b","status":"affected","version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc5","versionStartIncluding":"5.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/intel: Fix out-of-bounds memset in dmar_latency_disable()\n\ndmar_latency_disable() intends to zero out only the single\nlatency_statistic entry for the given type, but the memset size was\ncomputed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire\narray starting from &lstat[type].\n\nWhen type > 0, this writes beyond the end of the allocated array,\ncorrupting adjacent memory.\n\nFix by using sizeof(*lstat) to clear only the target entry."}],"providerMetadata":{"dateUpdated":"2026-08-10T12:03:00.073Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa"},{"url":"https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3"},{"url":"https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a"},{"url":"https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57"},{"url":"https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b"}],"title":"iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68324","datePublished":"2026-08-10T12:03:00.073Z","dateReserved":"2026-07-30T09:28:09.382Z","dateUpdated":"2026-08-10T12:03:00.073Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:22","lastModifiedDate":"2026-08-10 13:20:22","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68324","Ordinal":"1","Title":"iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()","CVE":"CVE-2026-68324","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68324","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/intel: Fix out-of-bounds memset in dmar_latency_disable()\n\ndmar_latency_disable() intends to zero out only the single\nlatency_statistic entry for the given type, but the memset size was\ncomputed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire\narray starting from &lstat[type].\n\nWhen type > 0, this writes beyond the end of the allocated array,\ncorrupting adjacent memory.\n\nFix by using sizeof(*lstat) to clear only the target entry.","Type":"Description","Title":"iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()"}]}}}