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N/a summary researchers from wuhan university have provided amd with a paper titled zenleak We have discovered cases where the effects of a. In their paper, researchers investigate the feasibility of prime and probe cache attacks on.

[accepted], [amd response], [news] best paper award nominee ke xu, ming tang, quancheng wang, han wang microarchitectural attacks and mitigations on retire resources in modern processors The architecture documentation recommends using it to eliminate any performance penalties caused by false dependencies when transitioning between avx and sse modes A place to share and discuss news and leaks, datamines and theories relating to the video game 'zenless zone zero'

A quick summary is that a mispredicted vzeroupper instruction can lead to the processor leaking leftover contents in the register.

论文ZenLeak: Practical Last-Level Cache Side-Channel Attacks on AMD Zen Processors 由武汉大学的王晗、唐明教授、王泉成、许可，南方科技大学张殷乾教授共同撰写。第一作者为国家网络安全学院2022级硕士研究生王晗，唐明教授为通讯作者。研究团队探讨了针对AMD Zen处理器的末级缓存（LLC）的Prime+Probe攻击方法. The vzeroupper instruction can be used to zero the upper 128 bits of the ymm registers

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