Crash after accessing parts before allocated memory

[Fabian Maurer]

On Sunday, November 20, 2016 8:20:32 PM CET Stefan Dösinger wrote:
> 
> You could try to find out what is supposed to be stored at the offset used
> by the program and see if you can modify Wine to behave similarly to
> Windows.

Well, there isn't much stored, on windows it's just null-bytes all the way. 
Probably because wine has a different allocation scheme in RtlAllocateHeap 
than windows.
 
> It is also possible that the program is really just broken and incredibly
> lucky on Windows. Even then you could in theory find out why it’s unlucky
> on Wine (e.g. how the allocated addresses look after its HeapAlloc calls)
> and try to improve the odds, but there is no guarantee that you can make it
> reliable.

I fear that's the case, it looks broken. Though I'll probably investigate it a 
bit longer before giving up.