Not yet scoredPublished Aug 10, 2026

CVE-2026-68324iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()

Updated under an hour ago (Oct 27, 2026, 2:00 AM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Aug 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e before 80f3605991461679c298ea2045c350ee3cf36de3; from 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e before 104d89cf5b01cb66ff975d91ed42f61b3904df53; from 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e before 3078d82e7fe9048a2b90a992e71af7cd7ef881fa; from 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e before 866a35735e56b9dc81cbc33899255134adf6d8b3; from 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e before d06fea9b85f038690f55e72fe0c45e113715a85a; 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e builds before 0e28ca1c3204b51068579defc904a0dfba5e5c57; from 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e before 754f8efe45f87e3a9c6871b645b2f9d46d1b407b	CNA record

References

References

https://git.kernel.org/stable/c/80f3605991461679c298ea2045c350ee3cf36de3
https://git.kernel.org/stable/c/104d89cf5b01cb66ff975d91ed42f61b3904df53
https://git.kernel.org/stable/c/3078d82e7fe9048a2b90a992e71af7cd7ef881fa
https://git.kernel.org/stable/c/866a35735e56b9dc81cbc33899255134adf6d8b3
https://git.kernel.org/stable/c/d06fea9b85f038690f55e72fe0c45e113715a85a
https://git.kernel.org/stable/c/0e28ca1c3204b51068579defc904a0dfba5e5c57
https://git.kernel.org/stable/c/754f8efe45f87e3a9c6871b645b2f9d46d1b407b

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.