CVEs-PoC/2020/CVE-2020-25669.md

### [CVE-2020-25669](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25669)
![](https://img.shields.io/static/v1?label=Product&message=Linux%20Kernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-416&color=brighgreen)

### Description

A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.

### POC

#### Reference
- http://www.openwall.com/lists/oss-security/2020/11/05/2
- http://www.openwall.com/lists/oss-security/2020/11/20/5
- https://www.openwall.com/lists/oss-security/2020/11/05/2,
- https://www.openwall.com/lists/oss-security/2020/11/20/5,

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