cve/2013/CVE-2013-1819.md

### [CVE-2013-1819](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1819)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20n%2Fa%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the ability to mount an XFS filesystem containing a metadata inode with an invalid extent map.

### POC

#### Reference
- http://www.ubuntu.com/usn/USN-1973-1
- http://www.ubuntu.com/usn/USN-1973-1

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