CVE-2025-68313
Linux Kernel vulnerability analysis and mitigation

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. ]


SourceNVD

Related Linux Kernel vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-68321N/AN/A
  • Linux KernelLinux Kernel
  • kernel-core
NoYesDec 16, 2025
CVE-2025-68319N/AN/A
  • Linux KernelLinux Kernel
  • kernel-64k-core
NoYesDec 16, 2025
CVE-2025-68317N/AN/A
  • Linux KernelLinux Kernel
  • kernel-rt-modules-extra
NoYesDec 16, 2025
CVE-2025-68313N/AN/A
  • Linux KernelLinux Kernel
  • kernel-rt-64k-debug-modules
NoYesDec 16, 2025
CVE-2025-68312N/AN/A
  • Linux KernelLinux Kernel
  • kernel-64k-modules-extra
NoYesDec 16, 2025

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