[cbraz]

AMD's response (https://www.amd.com/en/corporate/product-security):

"Take A Way 3/7/20

We are aware of a new white paper that claims potential security exploits in AMD CPUs, whereby a malicious actor could manipulate a cache-related feature to potentially transmit user data in an unintended way. The researchers then pair this data path with known and mitigated software or speculative execution side channel vulnerabilities. AMD believes these are not new speculation-based attacks.

AMD continues to recommend the following best practices to help mitigate against side-channel issues:

Keeping your operating system up-to-date by operating at the latest version revisions of platform software and firmware, which include existing mitigations for speculation-based vulnerabilities

Following secure coding methodologies

Implementing the latest patched versions of critical libraries, including those susceptible to side channel attacks

Utilizing safe computer practices and running antivirus software"

[tedunangst]

Running AV software seems like not the best mitigation here.

[Sephr]

In other words, "we have not shipped a patch for this."