CVEs-PoC/2021/CVE-2021-20317.md

### [CVE-2021-20317](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20317)
![](https://img.shields.io/static/v1?label=Product&message=kernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Kernel%205.3%20rc1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-665&color=brightgreen)

### Description

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

### POC

#### Reference
No PoCs from references.

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