Vulnerability 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.
References
- https://git.kernel.org/stable/c/4d695e66d7027a0c78302e47ac76293675fbbb4d
- https://git.kernel.org/stable/c/a98d0d49757a113ce17960262b9cd4ccc1420108
FAQ
What is CVE-2026-98894?
CVE-2026-98894 is a documented vulnerability. 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 parse...
How severe is CVE-2026-98894?
CVSS scoring is not yet available for CVE-2026-98894. Check NVD for updates.
Is there a patch for CVE-2026-98894?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.