http://bugs.winehq.org/show_bug.cgi?id=21336
--- Comment #2 from Dan Kegel dank@kegel.com 2010-01-11 21:33:44 --- Created an attachment (id=25684) --> (http://bugs.winehq.org/attachment.cgi?id=25684) Draft patch to fix problem
This patch seems to solve the problem, but doesn't catch overruns on shrunken blocks.