cve/2018/CVE-2018-20836.md

### [CVE-2018-20836](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20836)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

### POC

#### Reference
- https://usn.ubuntu.com/4076-1/

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