CVE-2024-53114 x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client

Medium 5.5 Published Updated

A flaw in the Linux kernel allows random host reboots on AMD Zen4 client systems due to incorrect virtualized VMLOAD/VMSAVE capability advertisement.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-53114?

CVE-2024-53114 is a medium-severity denial of service vulnerability in Linux kernel, published on 2 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client

A number of Zen4 client SoCs advertise the ability to use virtualized VMLOAD/VMSAVE, but using these instructions is reported to be a cause of a random host reboot.

These instructions aren't intended to be advertised on Zen4 client so clear the capability.

Which versions are affected by CVE-2024-53114?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-53114?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-53114 being exploited?

There is no known exploitation of CVE-2024-53114 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-54113, AZL-54177, BELL-CVE-2024-53114, DEBIAN-CVE-2024-53114, GHSA-rgw8-cw3p-qv66, ROOT-OS-DEBIAN-11-CVE-2024-53114 and 3 more.

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