Rating:

## tl;dr

+ Use the integer overflow to trigger a kernel heap overflow.
+ Use the heap overflow to overwrite tty structure function pointers to get code execution.

Challenge Points: 986

No of Solves: 7

Challenge Author: [Cyb0rG](https://twitter.com/_Cyb0rG)

Original writeup (https://blog.bi0s.in/2021/08/17/Pwn/InCTFi21-Kqueue/).