https://www.amd.com/en/resources/product-security/bulletin/a...
The OP says they discovered this on a Zen 2, which is not covered by that bulletin (?)
[edit to add]: Also, the bulletin is solely about RDSEED zeros, whereas the OP is also reporting RDRAND zeroes.
alt Hacker News
The OP says they discovered this on a Zen 2, which is not covered by that bulletin (?)
[edit to add]: Also, the bulletin is solely about RDSEED zeros, whereas the OP is also reporting RDRAND zeroes.