CVE-2026-98894 drm/amd/ras: reset CPER ring on corrupt entry size
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-98894?
CVE-2026-98894 is a vulnerability in Linux, published on 23 Oct 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/ras: reset CPER ring on corrupt entry size
When CPER ring overflow handling advances the read pointer, it trusts the parsed entry size from the current ring contents. Corrupt CPER data can produce an entry size that does not advance rptr after dword conversion and pointer masking.
In that case the recovery loop keeps testing the same location while holding the CPER ring mutex. This can hang the worker that is writing the next CPER record.
Detect a no-progress rptr update and reset the CPER ring to an empty state instead. This drops the corrupt contents and lets the writer leave the recovery path without spinning.
Which versions are affected by CVE-2026-98894?
How do I fix CVE-2026-98894?
Upgrade to a fixed version.
Is CVE-2026-98894 being exploited?
There is no known exploitation of CVE-2026-98894 in the wild and no public exploit code.
Sources
Also known as AZL-110567, BELL-CVE-2026-98894, DEBIAN-CVE-2026-98894, GHSA-7fwj-mp6x-9r6f, UBUNTU-CVE-2026-98894.