I haven't look at this challenge. It seems not very hard.
There is a writeup and some tips on kernel pwn: https://pr0cf5.github.io/ctf/2020/03/09/the-plight-of-tty-in-the-linux-kernel.html
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I haven't look at this challenge. It seems not very hard.
There is a writeup and some tips on kernel pwn: https://pr0cf5.github.io/ctf/2020/03/09/the-plight-of-tty-in-the-linux-kernel.html