Re: [PATCH v5 0/3] MR8834: server: Use process_vm_writev / process_vm_readv instead of ptrace when available.

[Marc-Aurel Zent (＠mzent)]

On Thu Nov  6 11:38:17 2025 +0000, Paul Gofman wrote:
> If I have to guess, this part looks suspicious:
>             ret = mach_vm_region( process_port, &region_address,
> &region_size, VM_REGION_BASIC_INFO_64,
>                      (vm_region_info_t)&info, &info_count, &object_name );
>
> ((vm_region_info_t)&info). That seems like the parameter which address
> on stack is below our 'written' (so writing past it can do this), and it
> is suspiciously casted.

The cast there is how the API is supposed to be used, but this is indeed where the stack is getting smashed.