Re: [PATCH 2/2 v2] ntdll: Zero debug registers after thread creation

[Michael Müller]

Am 07.04.2017 um 17:52 schrieb Christian Inci:
>  DWORD tid = 0;
>  int request_pipe[2];
> -
>
> CONTEXT ctx;
> NTSTATUS status;
>
> [...]
> -
>
> ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
> -
>
> NtSetContextThread(handle, &ctx);
> -

You didn't initialize the register values and therefore set the debug
registers to random stack values. You should either initialize them
manually or memset the whole struct.