CVE-2026-93179 drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read
A local attacker can trigger an infinite loop or out-of-bounds read in the AMD powerplay driver via a malformed VBIOS table, causing denial of service or information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-93179?
CVE-2026-93179 is a 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/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read
Reject voltage objects whose usSize is smaller than the header or would advance the cursor past the table end, preventing an infinite loop or heap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table.
Which versions are affected by CVE-2026-93179?
How do I fix CVE-2026-93179?
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-2026-93179 being exploited?
There is no known exploitation of CVE-2026-93179 in the wild and no public exploit code.
Sources
Also known as AZL-102249, BELL-CVE-2026-93179, DEBIAN-CVE-2026-93179, GHSA-636p-hq8h-v2cp, UBUNTU-CVE-2026-93179.