Kernel buffer overflow exposes iPhone 11 Pro to radio based attacks

[Adam D. Ruppe]

On Friday, 4 December 2020 at 09:24:43 UTC, Timon Gehr wrote:
> The only reason why `HLT` terminates execution of userspace 
> code is that such code does not have sufficient permissions to 
> execute the instruction; in the kernel, it would not do much.

I think every time dmd uses hlt it would be better off with int 
3; the debug trap instruction. It is also one byte - 0xcc - and 
is actually defined to do something more appropriate.

Or maybe not cuz of side effects... idk really, just the misuse 
of hlt has always bugged me.