CVE-2026-68324
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()
dmar_latency_disable() intends to zero out only the single
latency_statistic entry for the given type, but the memset size was
computed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire
array starting from &lstat[type].
When type > 0, this writes beyond the end of the allocated array,
corrupting adjacent memory.
Fix by using sizeof(*lstat) to clear only the target entry.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace.
We have provided these links to other web sites because they
may have information that would be of interest to you. No
inferences should be drawn on account of other sites being
referenced, or not, from this page. There may be other web
sites that are more appropriate for your purpose. NIST does
not necessarily endorse the views expressed, or concur with
the facts presented on these sites. Further, NIST does not
endorse any commercial products that may be mentioned on
these sites. Please address comments about this page to [email protected]
Change History
3 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:42 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/104d89cf5b01cb66ff975d91ed42f61b3904df53
Added
Reference
https://git.kernel.org/stable/c/80f3605991461679c298ea2045c350ee3cf36de3
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"866a35735e56b9dc81cbc33899255134adf6d8b3","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"d06fea9b85f038690f55e72fe0c45e113715a85a","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"0e28ca1c3204b51068579defc904a0dfba5e5c57","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2221 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"80f3605991461679c298ea2045c350ee3cf36de3","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"104d89cf5b01cb66ff975d91ed42f61b3904df53","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"866a35735e56b9dc81cbc33899255134adf6d8b3","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"d06fea9b85f038690f55e72fe0c45e113715a85a","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"0e28ca1c3204b51068579defc904a0dfba5e5c57","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","le
CVE Modified by kernel.org
8/17/2026 1:18:35 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"866a35735e56b9dc81cbc33899255134adf6d8b3","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"d06fea9b85f038690f55e72fe0c45e113715a85a","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"0e28ca1c3204b51068579defc904a0dfba5e5c57","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"866a35735e56b9dc81cbc33899255134adf6d8b3","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"d06fea9b85f038690f55e72fe0c45e113715a85a","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"0e28ca1c3204b51068579defc904a0dfba5e5c57","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
New CVE Received from kernel.org
8/10/2026 9:20:22 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()
dmar_latency_disable() intends to zero out only the single
latency_statistic entry for the given type, but the memset size was
computed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire
array starting from &lstat[type].
When type > 0, this writes beyond the end of the allocated array,
corrupting adjacent memory.
Fix by using sizeof(*lstat) to clear only the target entry.
Added
Reference
https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57
Added
Reference
https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa
Added
Reference
https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b
Added
Reference
https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3
Added
Reference
https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"3078d82e7fe9048a2b90a992e71af7cd7ef881fa","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"866a35735e56b9dc81cbc33899255134adf6d8b3","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"d06fea9b85f038690f55e72fe0c45e113715a85a","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"0e28ca1c3204b51068579defc904a0dfba5e5c57","versionType":"git","status":"affected"},{"version":"55ee5e67a59a1b6f388d7a1c7b24022145f47a3e","lessThan":"754f8efe45f87e3a9c6871b645b2f9d46d1b407b","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/iommu/intel/perf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68324 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
