CVE-2024-46776 drm/amd/display: Run DC_LOG_DC after checking link->link_enc
A null pointer dereference in the AMD display driver can cause a system crash when logging occurs before checking a link encoder pointer.
- 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-2024-46776?
CVE-2024-46776 is a medium-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: Run DC_LOG_DC after checking link->link_enc
[WHAT] The DC_LOG_DC should be run after link->link_enc is checked, not before.
This fixes 1 REVERSE_INULL issue reported by Coverity.
Weakness: CWE-476
Which versions are affected by CVE-2024-46776?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46776?
Apply the vendor's patch.
Is CVE-2024-46776 being exploited?
There is no known exploitation of CVE-2024-46776 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-53262, BELL-CVE-2024-46776, DEBIAN-CVE-2024-46776, GHSA-rxvg-52xh-5pv7, ROOT-OS-DEBIAN-11-CVE-2024-46776, ROOT-OS-DEBIAN-12-CVE-2024-46776 and 1 more.