README.md

EEBPF - TWCTF 2020

Extended Extended Berkeley Packet Filter

It implements a new bpf op BPF_ALSH. However, it fails to check 64-bit register range.

External writeup:

• https://github.com/leesh3288/CTF/blob/master/2020/TWCTF_2020/eebpf/writeup.md