CVE-2024-46814 drm/amd/display: Check msg_id before processing transcation

High 7.8 Published Updated

A missing check for invalid message IDs in the AMD display driver can lead to out-of-bounds array access, potentially causing a system crash.

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-2024-46814?

CVE-2024-46814 is a high-severity vulnerability in Linux kernel, 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/display: Check msg_id before processing transcation

[WHY & HOW] HDCP_MESSAGE_ID_INVALID (-1) is not a valid msg_id nor is it a valid array index, and it needs checking before used.

This fixes 4 OVERRUN issues reported by Coverity.

Weakness: CWE-129

Which versions are affected by CVE-2024-46814?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46814?

Apply the vendor's patch.

Is CVE-2024-46814 being exploited?

There is no known exploitation of CVE-2024-46814 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-46814, DEBIAN-CVE-2024-46814, GHSA-jjvj-jj3x-xj85, UBUNTU-CVE-2024-46814.

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