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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
55ee5e67a59a1b6f388d7a1c7b24022145f47a3e affected < 3078d82e7fe9048a2b90a992e71af7cd7ef881fa
55ee5e67a59a1b6f388d7a1c7b24022145f47a3e affected < 866a35735e56b9dc81cbc33899255134adf6d8b3
55ee5e67a59a1b6f388d7a1c7b24022145f47a3e affected < d06fea9b85f038690f55e72fe0c45e113715a85a
55ee5e67a59a1b6f388d7a1c7b24022145f47a3e affected < 0e28ca1c3204b51068579defc904a0dfba5e5c57
55ee5e67a59a1b6f388d7a1c7b24022145f47a3e affected < 754f8efe45f87e3a9c6871b645b2f9d46d1b407b
Linux Linux affected
Version Status Constraints
5.14 affected —
0 unaffected < 5.14
6.6.148 unaffected ≤ 6.6.*
6.12.101 unaffected ≤ 6.12.*
6.18.42 unaffected ≤ 6.18.*
7.1.6 unaffected ≤ 7.1.*
7.2-rc5 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57 cve-icon
https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa cve-icon
https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b cve-icon
https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3 cve-icon
https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a cve-icon
History

Mon, 10 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-788

Mon, 10 Aug 2026 12:30:00 +0000

Type Values Removed Values 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.
Title iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-10T12:03:00.073Z

Reserved: 2026-07-30T09:28:09.382Z

Link: CVE-2026-68324

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T16:00:04Z

Weaknesses