Vulnerability Description
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. ]
References
- https://git.kernel.org/stable/c/36ff93e66d0efc46e39fab536a9feec968daa766
- https://git.kernel.org/stable/c/607b9fb2ce248cc5b633c5949e0153838992c152
- https://git.kernel.org/stable/c/e980de2ff109dacb6d9d3a77f01b27c467115ecb
FAQ
What is CVE-2025-68313?
CVE-2025-68313 is a documented vulnerability. 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 retur...
How severe is CVE-2025-68313?
CVSS scoring is not yet available for CVE-2025-68313. Check NVD for updates.
Is there a patch for CVE-2025-68313?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.