PT-2025-51725

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue with the RDSEED instruction on Zen5 processors, where 16-bit and 32-bit register output variants may return a random value of 0 at an inconsistent rate...

RDSEED Failure on AMD “Zen 5” Processors

Summary AMD was notified of a bug in “Zen 5” processors that may cause the RDSEED instruction to return 0 at a rate inconsistent with randomness while incorrectly signaling success CF=1, indicating a potential misclassification of failure as success. This issue was initially reported publicly via...