Syscall Hijacking: Anti Fork-Bomb LKM (kernel 2.6.x)

Hi. In this post I’ll show you how to implement a simple anti fork-bomb LKM.
There is already a kernel method to prevent the fork bomb: you can search online about this stuff.
Instead I’ll show you how prevent a fork bomb attack through a simple loadable kernel module, in order to better understand how a new process is created and how we can prevent its creation.