Re: https://firmwaresecurity.com/2020/06/14/acpi-exploit-poc-for-ubuntu/
there is another exploit from the original researcher.
This sequel is an improvement on American Unsigned Language, in that it works on mainline kernels and does not require any reboots.[…]
https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language-2.sh