UNKNOWN NVD
CVE-2026-98894
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 advanc
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.
References
- https://git.kernel.org/stable/c/4d695e66d7027a0c78302e47ac76293675fbbb4d
- https://git.kernel.org/stable/c/a98d0d49757a113ce17960262b9cd4ccc1420108
This unknown severity vulnerability was published on 2026-10-23 via NVD.
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