Use After Free Affecting kernel-debug package, versions <0:6.12.0-211.53.1.el10_2


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.18% (7th percentile)

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  • Snyk IDSNYK-ALMALINUX10-KERNELDEBUG-19695149
  • published12 Sept 2026
  • disclosed8 Sept 2026

Introduced: 8 Sep 2026

NewCVE-2026-64051  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 kernel-debug to version 0:6.12.0-211.53.1.el10_2 or higher.
This issue was patched in ALSA-2026:65334.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

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]

CVSS Base Scores

version 3.1