CVE-2026-93177 drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup
Missing bounds checks in the AMDGPU Vega10 powerplay driver allow out-of-bounds reads from VBIOS tables, potentially causing crashes or information leaks.
- 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-2026-93177?
CVE-2026-93177 is a high-severity memory corruption vulnerability in Linux, published on 17 Sep 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/pm/powerplay: bounds-check voltage index in Vega10 lookup
vddInd, vddciInd and mvddInd from VBIOS-parsed tables index into vddc, vddci and vddmem lookup tables without bounds checks across nine sites. Return -EINVAL when any index is out of range.
Which versions are affected by CVE-2026-93177?
How do I fix CVE-2026-93177?
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-2026-93177 being exploited?
There is no known exploitation of CVE-2026-93177 in the wild and no public exploit code.
Sources
Also known as AZL-102294, BELL-CVE-2026-93177, DEBIAN-CVE-2026-93177, GHSA-28gw-3rjm-8334, UBUNTU-CVE-2026-93177.