CVE-2026-46218 drm/amdgpu: Add bounds checking to ib_{get,set}_value
Missing bounds checks and integer overflow in AMD GPU driver allow attackers to cause memory corruption or 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-2026-46218?
CVE-2026-46218 is a high-severity 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: Add bounds checking to ib_{get,set}_value
The uvd/vce/vcn code accesses the IB at predefined offsets without checking that the IB is large enough. Check the bounds here. The caller is responsible for making sure it can handle arbitrary return values.
Also make the idx a uint32_t to prevent overflows causing the condition to fail.
Which versions are affected by CVE-2026-46218?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46218?
Apply the vendor's patch.
Is CVE-2026-46218 being exploited?
There is no known exploitation of CVE-2026-46218 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88872, BELL-CVE-2026-46218, DEBIAN-CVE-2026-46218, GHSA-qmfv-4x39-7vh3, ROOT-OS-DEBIAN-11-CVE-2026-46218, ROOT-OS-DEBIAN-12-CVE-2026-46218 and 3 more.