https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-01T19:26:31.699598+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2025-68313 CVE-2025-68313 — x86/CPU/AMD: Add RDSEED fix for Zen5 2026-10-01T19:26:31.750041+00:00

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

x86/CPU/AMD: Add RDSEED fix for Zen5

There's an issue with RDSEED's 16-bit and 32-bit register output variants on Zen5 which return a random value of 0 "at a rate inconsistent with randomness while incorrectly signaling success (CF=1)". Search the web for AMD-SB-7055 for more detail.

Add a fix glue which checks microcode revisions.

[ bp: Add microcode revisions checking, rewrite. ]