[Bug 4742] Message handling in dlls/user/edit.c may crash programs

http://bugs.winehq.org/show_bug.cgi?id=4742

--- Comment #25 from Fabian Ebner <f.ebner94(a)gmail.com> 2013-05-03 10:10:52 CDT ---
(In reply to comment #22)
> Created attachment 44340 [details]
> +edit,+kernelheap
>
> NoteXpad2 is still crashing in the editcontrol message handler, when loading a
> textfile.
>
> The issue is still EM_GETHANDLE/EM_SETHANDLE.
>
> I changed the debug channel in dlls/kernel32/heap.c to "kernelheap"
> and added some extra TRACE to make the log more readable.
>
> The issue is still EM_GETHANDLE/EM_SETHANDLE:
>
> Callchain:
> - EM_GETHANDLE
> - GlobalFree(memory handle from EM_GETHANDLE)
> - GlobalReAlloc(memory handle from EM_GETHANDLE, size, flags)
>
> NoteXPad2 download (139264 bytes):
> http://www.softpedia.com/get/Office-tools/Text-editors/NoteXpad.shtml
>
> -- 
> By by ... Detlef

You're right, NoteXPad2 was crashing. I was testing with the program of comment
3, which didn't crash. Anyway, the patch works fine for me, good job.

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