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List:       koffice
Subject:    [Fwd: Bug#2500: kdelibs/kparts/shell.cpp (line 301) causes segmentation
From:       Harri Porten <porten () tu-harburg ! de>
Date:       2000-01-12 11:30:54
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FYI,

Harri.

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Subject: Bug#2500: kdelibs/kparts/shell.cpp (line 301) causes segmentation fault.
Reply-To: Ferdi Franceschini <ferdif@optusnet.com.au>, 2500@bugs.kde.org
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From: Ferdi Franceschini <ferdif@optusnet.com.au>
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Package: kdelibs
Version: 1.89

Compiled from:
        kdelibs-20000108.tar.bz2

Problem: Segmentation fault running kword and kspread.

The segmentation fault is caused by the following function call
        a->plug( bar );
made at the following location 
        kdelibs/kparts/shell.cpp (line 301)

The problem is that the plug function is defined as taking two arguments
and the second argument has a default value of -1.
See
kdelibs/kdeui/kaction.h (line 258)
        int plug( QWidget*, int index = -1 );

This causes a segmentation fault when the QT function "NodePtr at( uint
i )" is  eventually called.


Additional Information
The -1 is converted to unsigned in the QT function "NodePtr at( uint i
)", see
        qt/include/qvaluelist.h (262)
the result is a very large integer which exceeds the number of
available  nodes and causes a segmentation fault.

Other relevant source files:
        koffice-20000108.tar.bz2
        qt-2.1.0-snapshot-19991215.tar.gz


If you need more information please feel free to send me an email.

Sincerely,
Ferdi Franceschini



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