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 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.
Affected versions
Fixed in
6.18.53,
7.2
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-98894?
CVE-2026-98894 is a unscored severity Linux kernel vulnerability . CVE-2026-98894 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98894?
Yes. CVE-2026-98894 has been patched. Fixed versions include 6.18.53 and 7.2.
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Is CVE-2026-98894 actively exploited?
No. CVE-2026-98894 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.