CVE-2022-48979 drm/amd/display: fix array index out of bound error in DCN32 DML
An out-of-bounds array index error in the Linux kernel's AMD display driver can lead to 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-2022-48979?
CVE-2022-48979 is a high-severity vulnerability in Linux kernel, published on 21 Oct 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: fix array index out of bound error in DCN32 DML
[Why&How] LinkCapacitySupport array is indexed with the number of voltage states and not the number of max DPPs. Fix the error by changing the array declaration to use the correct (larger) array size of total number of voltage states.
Weakness: CWE-129
Which versions are affected by CVE-2022-48979?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48979?
Apply the vendor's patch.
Is CVE-2022-48979 being exploited?
There is no known exploitation of CVE-2022-48979 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-51383, DEBIAN-CVE-2022-48979, GHSA-97r4-38mp-rc64, ROOT-OS-DEBIAN-11-CVE-2022-48979, ROOT-OS-UBUNTU-2204-CVE-2022-48979, UBUNTU-CVE-2022-48979.