PT-2026-61468 · Linux+1 · Linux Kernel+1

CVE-2026-64151

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Published

2026-05-15

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Updated

2026-09-07

CVSS v3.1

8.4

High

VectorAV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the iommupt component where the driver could omit PAGE SIZE from the pgsize bitmap. While technically permitted, this behavior contradicts the intended design. The fix involves adjusting the PT WARN ON logic to skip the fast path when this condition occurs.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improperly Implemented Security Check for Standard

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Weakness Enumeration

Related Identifiers

BDU:2026-14369
CVE-2026-64151
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1

Affected Products

Linux Kernel
Ubuntu