cve/2019/CVE-2019-19816.md

### [CVE-2019-19816](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19816)
![](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

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.

### POC

#### Reference
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816
- https://usn.ubuntu.com/4414-1/

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