### [CVE-2012-2121](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2121)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.

### POC

#### Reference
- http://www.ubuntu.com/usn/USN-1577-1

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