CVE-2024-36026 drm/amd/pm: fixes a random hang in S4 for SMU v13.0.4/11

Medium 5.5 Published Updated

A flaw in the AMD power management driver causes random system hangs during S4 sleep, requiring a kernel patch to prevent denial of service.

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-2024-36026?

CVE-2024-36026 is a medium-severity denial of service vulnerability in Linux kernel, published on 30 May 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:

drm/amd/pm: fixes a random hang in S4 for SMU v13.0.4/11

While doing multiple S4 stress tests, GC/RLC/PMFW get into an invalid state resulting into hard hangs.

Adding a GFX reset as workaround just before sending the MP1_UNLOAD message avoids this failure.

Which versions are affected by CVE-2024-36026?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-36026?

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-2024-36026 being exploited?

There is no known exploitation of CVE-2024-36026 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-36026, DEBIAN-CVE-2024-36026, ROOT-OS-UBUNTU-2204-CVE-2024-36026, UBUNTU-CVE-2024-36026.

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