# AMD noncanical address access        attack poc 

**Published by:** [Tinychenlin](https://paragraph.com/@cryptometaman/)
**Published on:** 2021-11-20
**URL:** https://paragraph.com/@cryptometaman/amd-noncanical-address-access-attack-poc

## Content

amd ryzen 架构处理器硬件设计的漏洞：非法的地址通过一套算法和合法的地址映射到通过一个TLB 条目里。 攻击原理基于如此， 利用对非法地址的推测访问，获取对应合法地址的数据。详细的论文和PoC 在 Github: https://github.com/Tinycl/amd_nocanonical_access 其中合法地址和非法地址之间的映射关系如下：

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