{"id":"CVE-2026-68324","summary":"iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()","details":"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 \u003e 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.","modified":"2026-08-21T03:30:37.094666675Z","published":"2026-08-10T12:03:00.073Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68324.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/104d89cf5b01cb66ff975d91ed42f61b3904df53"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/80f3605991461679c298ea2045c350ee3cf36de3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68324.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68324"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e"},{"fixed":"80f3605991461679c298ea2045c350ee3cf36de3"},{"fixed":"104d89cf5b01cb66ff975d91ed42f61b3904df53"},{"fixed":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa"},{"fixed":"866a35735e56b9dc81cbc33899255134adf6d8b3"},{"fixed":"d06fea9b85f038690f55e72fe0c45e113715a85a"},{"fixed":"0e28ca1c3204b51068579defc904a0dfba5e5c57"},{"fixed":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68324.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.14.0"},{"fixed":"5.15.216"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68324.json"}}],"schema_version":"1.9.0"}