Bug 374733

Segfault on almost every exit, debug information is below:

Application: kwordquiz (kwordquiz), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe43dcde800 (LWP 22686))]

Thread 3 (Thread 0x7fe428863700 (LWP 22688)):
#0  0x00007fe433c04d59 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fe433bc0539 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe433bc0f18 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe433bc10fc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fe43a268e2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007fe43a21c46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007fe43a0741a4 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007fe43ddb2445 in ?? () from /usr/lib64/libQt5DBus.so.5
#8  0x00007fe43a07873c in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007fe435cd0444 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe4399c55ed in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fe4121c2700 (LWP 22744)):
#0  0x00007fe43a268d22 in ?? () from /usr/lib64/libQt5Core.so.5
#1  0x00007fe433bc052d in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe433bc0f18 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe433bc10fc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fe43a268e2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007fe43a21c46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007fe43a0741a4 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007fe43a07873c in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007fe435cd0444 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe4399c55ed in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fe43dcde800 (LWP 22686)):
[KCrash Handler]
#6  0x00007fe43c5600a4 in ?? () from /usr/lib64/libKF5IconThemes.so.5
#7  0x00007fe43a0cbc49 in QHashData::free_helper(void (*)(QHashData::Node*)) () from /usr/lib64/libQt5Core.so.5
#8  0x00007fe43c55c42c in KIconLoader::~KIconLoader() () from /usr/lib64/libKF5IconThemes.so.5
#9  0x00007fe43c55c499 in ?? () from /usr/lib64/libKF5IconThemes.so.5
#10 0x00007fe439913a88 in ?? () from /lib64/libc.so.6
#11 0x00007fe439913ad5 in exit () from /lib64/libc.so.6
#12 0x00007fe4398fe797 in __libc_start_main () from /lib64/libc.so.6
#13 0x0000000000423329 in _start ()