Since the post doesn't mention it, if anyone's curious, you can find the PoC (and use it on pretty much any MTK device) here: https://github.com/R0rt1z2/lkpatcher

For those unfamiliar with it, this basically means you can use fenrir (for the average person this means strong integrity) and boot custom LKs / any bootloader on virtually any relatively new MTK device, even if that wasn't previously possible.

It includes two exploits: the 2023 one (well known and already patched), and the new variant, which should affect most devices.

To use the new exploit against a patched/modified LK image:

python3 -m lkpatcher lk-patched.bin --cert-bypass

To use the old exploit (mainly on V5 / legacy devices and some older V6 devices):

python3 -m lkpatcher lk-patched.bin --cert-bypass wrap