Linux Kernel UDP Fragmentation Offset (UFO) Privilege Escalation

This module attempts to gain root privileges on Linux systems by abusing
UDP Fragmentation Offload (UFO).

This exploit targets only systems using Ubuntu (Trusty / Xenial) kernels
4.4.0-21 based on Ubuntu, such as Linux Mint.

The target system must have unprivileged user namespaces enabled
and SMAP disabled.

Bypasses for SMEP and KASLR are included. Failed exploitation
may crash the kernel.

This module has been tested successfully on various Ubuntu and Linux
Mint systems, including:

Ubuntu 14.04.5 4.4.0-31-generic x64 Desktop;
Ubuntu 16.04 4.8.0-53-generic;
Linux Mint 17.3 4.4.0-89-generic;
Linux Mint 18 4.8.0-58-generic