CVE-2024-46730 drm/amd/display: Ensure array index tg_inst won't be -1

High 7.8 Published Updated

A missing check in the Linux kernel AMD display driver allows a negative array index, potentially causing a 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-2024-46730?

CVE-2024-46730 is a high-severity vulnerability in Linux kernel, published on 18 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: Ensure array index tg_inst won't be -1

[WHY & HOW] tg_inst will be a negative if timing_generator_count equals 0, which should be checked before used.

This fixes 2 OVERRUN issues reported by Coverity.

Weakness: CWE-191

Which versions are affected by CVE-2024-46730?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46730?

Apply the vendor's patch.

Is CVE-2024-46730 being exploited?

There is no known exploitation of CVE-2024-46730 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-49722, AZL-49770, BELL-CVE-2024-46730, DEBIAN-CVE-2024-46730, GHSA-g4xf-vj7c-7443, ROOT-OS-DEBIAN-11-CVE-2024-46730 and 3 more.

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