CVE-2024-46821 drm/amd/pm: Fix negative array index read

High 7.8 Published Updated

A negative array index read in the AMD power management driver can lead to memory corruption or system crashes.

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-2024-46821?

CVE-2024-46821 is a high-severity vulnerability in Debian Debian Linux, published on 27 Sep 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: Fix negative array index read

Avoid using the negative values for clk_idex as an index into an array pptable->DpmDescriptor.

V2: fix clk_index return check (Tim Huang)

Weakness: CWE-129

Which versions are affected by CVE-2024-46821?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2024-46821?

Apply the vendor's patch.

Is CVE-2024-46821 being exploited?

There is no known exploitation of CVE-2024-46821 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as AZL-49977, BELL-CVE-2024-46821, DEBIAN-CVE-2024-46821, GHSA-h364-pjw6-c9c5, UBUNTU-CVE-2024-46821.

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