cve/2019/CVE-2019-19036.md

### [CVE-2019-19036](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19036)
![](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

btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.

### POC

#### Reference
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036
- https://usn.ubuntu.com/4414-1/
- https://usn.ubuntu.com/4414-1/

#### Github
- https://github.com/DelspoN/CVE