[Bug 20253] New: Regression: Change to OLE32 causes page fault (problematic commit attached)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=20253

           Summary: Regression: Change to OLE32 causes page fault
                    (problematic commit attached)
           Product: Wine
           Version: 1.1.30
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ole32
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: brian at brianvuyk.com
                CC: julliard at winehq.org


Created an attachment (id=23895)
 --> (http://bugs.winehq.org/attachment.cgi?id=23895)
commit 7b6dd2c9f8339a0bc14aa7f466f5c5a0bb03da06 by Alexandre Julliard
<julliard at winehq.org>

A commit back in March appears to have introduced a bug in which
StringFromGUID2() gets provided a null argument, and crashes.

I noticed this when trying to get WWII Online: Battleground Europe running.
This bug was not present in 1.0.1 (which ships with Ubuntu), but was present in
1.1.30.

In short, when you try to start the 'Settings.exe' program that comes with the
game, it crashes with a page fault.

I did a git bisect, and isolated the commit that introduced this behaviour. I
am attaching it, along with a backtrace which resulted from the crash.

If there is anything else I can provide, let me know.

Regards,

Brian

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