echo Author Maher Description Can you pwn this 1 line syscall? You just receive what you send to the kernel. nc echo.2021.3k.ctf.to 9995 Distribution echo-447e7d55a7bc1f96518a18b7d645320b.tgz Points 478 Solves 9 Writeup https://github.com/h0pe-ay/Kernel-Pwn/tree/master/3kctf2021/echo