Reproduce in a virtual machine the Dirty COW vulnerabilities. Please, refer to the website. You may need to run a specific version of the kernel for this to work. Look at how to setup virtual machines using vagrant. You will need to setup a vagrant box and install (or compile) a specific version of the kernel. This can be done in the vagrant provision script. You are encouraged to use Google liberally!
Explain the example code provided on the Dirty COW website.