PT-2026-61368 · Linux · Linux

CVE-2026-64051 · Published 2026-07-19 · Updated 2026-07-19

Mitre

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

In the Linux kernel, the following vulnerability has been resolved:

accel/qaic: Add overflow check to remap pfn range during mmap

The call to remap pfn range in qaic gem object mmap is susceptible to (re)mapping beyond the VMA if the BO is too large. This can cause use after free issues when munmap() unmaps only the VMA region and not the additional mappings. To prevent this, check the remaining size of the VMA before remapping and truncate the remapped length if sg->length is too large.

[jhugo: fix braces from checkpatch --strict]

Fix

Related Identifiers

CVE-2026-64051

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-64051 · Security Note
• https://git.kernel.org/stable/c/9baafc2fea096279e75480f93fd5942e8336b510 · Note
• https://git.kernel.org/stable/c/aa16b2bc0f02709919e2435f531406531e5bcc69 · Note
• https://git.kernel.org/stable/c/8dd6edbe26770df147136c3f2ac976c873b82650 · Note
• https://git.kernel.org/stable/c/97a8e89cdef36207a8776edc03d6931763a06ad0 · Note
• https://git.kernel.org/stable/c/8c795012d0e06b7740e40319b86ff8d2a435098d · Note