Application: calligrawords (2.4 Beta 6)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.1-CHAKRA x86_64
Distribution: "Chakra Linux"

-- Information about the crash:
I selected text, chose the text colour button, clicked Add/remove colours and selected black (the last colour). The moment I clicked it words crashed and corrupted my file.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Words (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7e2f331760 (LWP 14254))]

Thread 2 (Thread 0x7f7e0c9d7700 (LWP 14255)):
#0  0x00007f7e2c9b6123 in poll () from /lib/libc.so.6
#1  0x00007f7e299fcc14 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f7e299fd14d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f7e2df80f7e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#4  0x00007f7e2df554f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#5  0x00007f7e2df556f7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x00007f7e2de6d02f in QThread::exec() () from /usr/lib/libQtCore.so.4
#7  0x00007f7e2df3852f in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007f7e2de6fa85 in ?? () from /usr/lib/libQtCore.so.4
#9  0x00007f7e2dbe5df0 in start_thread () from /lib/libpthread.so.0
#10 0x00007f7e2c9be39d in clone () from /lib/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7e2f331760 (LWP 14254)):
[KCrash Handler]
#6  KoColor::KoColor (this=0x81cedd0, rhs=...) at /home/user/Apps/calligra/calligra-src/libs/pigment/KoColor.cpp:114
#7  0x00007f7e1a8fffd8 in KoColorSetEntry (this=0x81cedd0) at /home/user/Apps/calligra/calligra-src/libs/pigment/resources/KoColorSet.h:32
#8  QVector<KoColorSetEntry>::realloc (this=0x7f7e0800e198, asize=136082176, aalloc=<optimized out>) at /usr/include/QtCore/qvector.h:504
#9  0x00007f7e1a8fe980 in detach (this=0x7f7e0800e198) at /usr/include/QtCore/qvector.h:134
#10 data (this=0x7f7e0800e198) at /usr/include/QtCore/qvector.h:139
#11 operator[] (i=1, this=0x7f7e0800e198) at /usr/include/QtCore/qvector.h:348
#12 KoColorSet::getColor (this=0x7f7e0800e160, index=<optimized out>) at /home/user/Apps/calligra/calligra-src/libs/pigment/resources/KoColorSet.cpp:235
#13 0x00007f7e1b75395d in KoColorSetWidget::KoColorSetWidgetPrivate::filter (this=0x1fe1520, state=2) at /home/user/Apps/calligra/calligra-src/libs/widgets/KoColorSetWidget.cpp:92
#14 0x00007f7e1b7545b2 in KoColorSetWidget::KoColorSetWidgetPrivate::addRemoveColors (this=0x1fe1520) at /home/user/Apps/calligra/calligra-src/libs/widgets/KoColorSetWidget.cpp:133
#15 0x00007f7e1b7547ad in KoColorSetWidget::qt_metacall (this=0x1fe1180, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff48ad42f0) at /home/user/Apps/calligra/calligra-build/libs/widgets/KoColorSetWidget.moc:92
#16 0x00007f7e2df68f0a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x00007f7e2d781962 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#18 0x00007f7e2d4c8c4e in ?? () from /usr/lib/libQtGui.so.4
#19 0x00007f7e2d4c9f8b in ?? () from /usr/lib/libQtGui.so.4
#20 0x00007f7e2d4ca1fc in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007f7e2d58715a in QToolButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007f7e2d18638a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#23 0x00007f7e2d135d94 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#24 0x00007f7e2d13b502 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0x00007f7e2ed0fe26 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0x00007f7e2df562fc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#27 0x00007f7e2d136d62 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#28 0x00007f7e2d1b336d in ?? () from /usr/lib/libQtGui.so.4
#29 0x00007f7e2d1b1a6a in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#30 0x00007f7e2d1d9032 in ?? () from /usr/lib/libQtGui.so.4
#31 0x00007f7e299fc6d3 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#32 0x00007f7e299fceb0 in ?? () from /usr/lib/libglib-2.0.so.0
#33 0x00007f7e299fd14d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#34 0x00007f7e2df80f16 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0x00007f7e2d1d8cae in ?? () from /usr/lib/libQtGui.so.4
#36 0x00007f7e2df554f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0x00007f7e2df556f7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#38 0x00007f7e2d549201 in QMenu::exec(QPoint const&, QAction*) () from /usr/lib/libQtGui.so.4
#39 0x00007f7e2d589014 in ?? () from /usr/lib/libQtGui.so.4
#40 0x00007f7e2d589a18 in QToolButton::mousePressEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#41 0x00007f7e2d186669 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#42 0x00007f7e2d135d94 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#43 0x00007f7e2d13b502 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#44 0x00007f7e2ed0fe26 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#45 0x00007f7e2df562fc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#46 0x00007f7e2d136d62 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#47 0x00007f7e2d1b2cc1 in ?? () from /usr/lib/libQtGui.so.4
#48 0x00007f7e2d1b1a6a in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#49 0x00007f7e2d1d9032 in ?? () from /usr/lib/libQtGui.so.4
#50 0x00007f7e299fc6d3 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#51 0x00007f7e299fceb0 in ?? () from /usr/lib/libglib-2.0.so.0
#52 0x00007f7e299fd14d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#53 0x00007f7e2df80f16 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#54 0x00007f7e2d1d8cae in ?? () from /usr/lib/libQtGui.so.4
#55 0x00007f7e2df554f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#56 0x00007f7e2df556f7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#57 0x00007f7e2df598eb in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#58 0x00007f7e1bd13fed in kdemain (argc=<optimized out>, argv=0x13582d0) at /home/user/Apps/calligra/calligra-src/words/part/main.cpp:43
#59 0x0000000000408792 in _start ()

Reported using DrKonqi