[Bug 52492] New: stack overflow from GdipFlattenPath
WineHQ Bugzilla
wine-bugs at winehq.org
Sun Jan 30 15:38:20 CST 2022
https://bugs.winehq.org/show_bug.cgi?id=52492
Bug ID: 52492
Summary: stack overflow from GdipFlattenPath
Product: Wine
Version: 7.1
Hardware: x86-64
OS: Mac OS X
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gdiplus
Assignee: wine-bugs at winehq.org
Reporter: rjfeuerbach at gmail.com
Created attachment 71787
--> https://bugs.winehq.org/attachment.cgi?id=71787
test patch to replicate the curves and stack overflow
I have a third party application, unfortunately not available for download,
that is generating a virtual stack overflow error. Using +replay and
eventually +gdiplus messages, the cause was narrowed down to be due to calls to
GdipFlattenPath.
Attached is a patch to gdiplus/test/graphicspath.c to include the precise
curves that cause the stack overflow.
I believe the problem is due to the comparison of REALs with == in the
flatten_bezier helper function.
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