`mmap: Operation not permitted`

[vergenzt]

I keep getting the following output, and the binary does not successfully decrypt:

mmap: Operation not permitted
Succeeded in decrypting the binary.

Seems to be related to https://stackoverflow.com/questions/76089523/why-mmap-fails-to-allocate-executable-page-on-macos:

This Apple document states:

When memory protection is enabled, a thread cannot write to a memory region and execute instructions in that region at the same time. Apple silicon enables memory protection for all apps, regardless of whether they adopt the Hardened Runtime. Intel-based Mac computers enable memory protection only for apps that adopt the Hardened Runtime.

It goes on to explain what you need to do. It’s a bit long to quote, but it boils down to using pthread_jit_write_protect_np to disable memory protection before writing, and to enable it again before executing.

[vergenzt]

Looks like same ish as NyaMisty/fouldecrypt#15?