cve/2011/CVE-2011-2525.md

### [CVE-2011-2525](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2525)
![](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 qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call.

### POC

#### Reference
- http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805

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