CVE-2026-46199 drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg
An out-of-bounds read in the AMD GPU VCN4 driver allows attackers to read kernel memory or cause 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-2026-46199?
CVE-2026-46199 is a high-severity memory corruption vulnerability in Linux kernel, published on 28 May 2026. 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/amdgpu/vcn4: Prevent OOB reads when parsing dec msg
Check bounds against the end of the BO whenever we access the msg.
Weakness: CWE-125
Which versions are affected by CVE-2026-46199?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46199?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-46199 being exploited?
There is no known exploitation of CVE-2026-46199 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88938, BELL-CVE-2026-46199, DEBIAN-CVE-2026-46199, GHSA-v7cw-36xw-548q, ROOT-OS-DEBIAN-11-CVE-2026-46199, ROOT-OS-DEBIAN-12-CVE-2026-46199 and 3 more.