CVE-2025-68313 | THREATINT

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. ]

PUBLISHED Reserved 2025-12-16 | Published 2025-12-16 | Updated 2025-12-16 | Assigner Linux

Product status

Default status

unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before e980de2ff109dacb6d9d3a77f01b27c467115ecb

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 36ff93e66d0efc46e39fab536a9feec968daa766

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 607b9fb2ce248cc5b633c5949e0153838992c152

affected

Default status

affected

6.12.58 (semver)

unaffected

6.17.8 (semver)

unaffected

6.18 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/e980de2ff109dacb6d9d3a77f01b27c467115ecb

git.kernel.org/...c/36ff93e66d0efc46e39fab536a9feec968daa766

git.kernel.org/...c/607b9fb2ce248cc5b633c5949e0153838992c152

cve.org (CVE-2025-68313)

nvd.nist.gov (CVE-2025-68313)

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