### [CVE-2011-1013](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1013)
![](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

Integer signedness error in the drm_modeset_ctl function in (1) drivers/gpu/drm/drm_irq.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.38 and (2) sys/dev/pci/drm/drm_irq.c in the kernel in OpenBSD before 4.9 allows local users to trigger out-of-bounds write operations, and consequently cause a denial of service (system crash) or possibly have unspecified other impact, via a crafted num_crtcs (aka vb_num) structure member in an ioctl argument.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Heshamshaban001/Kioptix-level-1-walk-through
- https://github.com/Heshamshaban001/Metasploitable1-walkthrough
- https://github.com/Heshamshaban001/Metasploitable2-Walk-through