CVEs-PoC/2020/CVE-2020-29372.md

### [CVE-2020-29372](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29372)
![](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 do_madvise in mm/madvise.c in the Linux kernel before 5.6.8. There is a race condition between coredump operations and the IORING_OP_MADVISE implementation, aka CID-bc0c4d1e176e.

### POC

#### Reference
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0c4d1e176eeb614dc8734fc3ace34292771f11

#### Github
- https://github.com/Live-Hack-CVE/CVE-2020-29372