cve/2009/CVE-2009-4131.md

### [CVE-2009-4131](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4131)
![](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 EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions.

### POC

#### Reference
- http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/

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