https://bugs.winehq.org/show_bug.cgi?id=26130
--- Comment #4 from Austin English austinenglish@gmail.com --- (In reply to Henri Verbeet from comment #3)
This is probably more of a Valgrind issue than an issue with Wine or the tests. The test is calling DirectDrawEnumerateA() with a NULL callback on purpose, to test the exception handler in DirectDrawEnumerateExA(). It seems Valgrind doesn't handle that very well for some reason.
Sounds like https://bugs.kde.org/show_bug.cgi?id=264785