Uncaught Exception Affecting kernel-rt-64k-debug-devel-matched package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELRT64KDEBUGDEVELMATCHED-16995866
  • published28 May 2026
  • disclosed27 May 2026

Introduced: 27 May 2026

NewCVE-2026-46032  (opens in a new tab)
CWE-248  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 kernel-rt-64k-debug-devel-matched.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k-debug-devel-matched package and not the kernel-rt-64k-debug-devel-matched package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

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

KVM: nSVM: Triple fault if restore host CR3 fails on nested #VMEXIT

If loading L1's CR3 fails on a nested #VMEXIT, nested_svm_vmexit() returns an error code that is ignored by most callers, and continues to run L1 with corrupted state. A sane recovery is not possible in this case, and HW behavior is to cause a shutdown. Inject a triple fault instead, and do not return early from nested_svm_vmexit(). Continue cleaning up the vCPU state (e.g. clear pending exceptions), to handle the failure as gracefully as possible.

From the APM:

Upon #VMEXIT, the processor performs the following actions in order to return to the host execution context:

...

if (illegal host state loaded, or exception while loading host state) shutdown else execute first host instruction following the VMRUN

Remove the return value of nested_svm_vmexit(), which is mostly unchecked anyway.

CVSS Base Scores

version 3.1