### [CVE-2021-33655](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33655)
![](https://img.shields.io/static/v1?label=Product&message=kernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=5.18%205.19.0-rc1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-787%3A%20Out-of-bounds%20Write&color=brightgreen)

### Description

When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.

### POC

#### Reference
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4

#### Github
- https://github.com/ARPSyndicate/cvemon