CVE-2024-46816 drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links
A buffer overrun in the AMD display driver can cause a system crash during initialization if the link count exceeds the maximum allowed value.
- 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-2024-46816?
CVE-2024-46816 is a high-severity denial of service 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: Stop amdgpu_dm initialize when link nums greater than max_links
[Why] Coverity report OVERRUN warning. There are only max_links elements within dc->links. link count could up to AMDGPU_DM_MAX_DISPLAY_INDEX 31.
[How] Make sure link count less than max_links.
Which versions are affected by CVE-2024-46816?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46816?
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-2024-46816 being exploited?
There is no known exploitation of CVE-2024-46816 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-46816, DEBIAN-CVE-2024-46816, GHSA-924c-rx43-2mjr, ROOT-OS-UBUNTU-2204-CVE-2024-46816, UBUNTU-CVE-2024-46816.