http://bugs.winehq.org/show_bug.cgi?id=30161
--- Comment #5 from Dmitry Timoshkov dmitry@baikal.ru 2012-03-14 11:34:27 CDT --- (In reply to comment #4)
I don't think we need more information just yet. From the backtrace it looks like the problem is we're not validating arguments in that function.
The problem may be that NULL comes from some other gdiplus call, and GdipImageRotateFlip is not supposed to check for it, needs the tests though.