CVEs-PoC/2021/CVE-2021-26312.md

### [CVE-2021-26312](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26312)
![](https://img.shields.io/static/v1?label=Product&message=Athlon%E2%84%A2%20Series&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=EPYC%E2%84%A2%20Processors&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Ryzen%E2%84%A2%20Series&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=various%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-665%20Improper%20Initialization&color=brightgreen)

### Description

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

### POC

#### Reference
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028

#### Github
No PoCs found on GitHub currently.