Trying to unpack rar-archive ARK crashes.

Kubuntu 16.10
Kernel 4.9RC6 x86_64


Application: Ark (ark), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8d44201d40 (LWP 9064))]

Thread 3 (Thread 0x7f8d39bb3700 (LWP 9066)):
#0  0x00007f8d4fab9c8d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f8d4c3cdc60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8d4c389485 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8d4c389974 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8d4c389aec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8d503ec4ab in QEventDispatcherGlib::processEvents (this=0x7f8d340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007f8d503940fa in QEventLoop::exec (this=this@entry=0x7f8d39bb2cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f8d501b9d43 in QThread::exec (this=this@entry=0x7f8d4e4a0d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#8  0x00007f8d4e42c575 in QDBusConnectionManager::run (this=0x7f8d4e4a0d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:171
#9  0x00007f8d501bec68 in QThreadPrivate::start (arg=0x7f8d4e4a0d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#10 0x00007f8d4cac370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f8d4faca0af in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f8d4175c700 (LWP 9065)):
#0  0x00007f8d4fabe0bd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f8d49d96c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f8d49d988d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f8d43cb3299 in QXcbEventReader::run (this=0x55eef01f8190) at qxcbconnection.cpp:1325
#4  0x00007f8d501bec68 in QThreadPrivate::start (arg=0x55eef01f8190) at thread/qthread_unix.cpp:341
#5  0x00007f8d4cac370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f8d4faca0af in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f8d44201d40 (LWP 9064)):
[KCrash Handler]
#6  0x000055eeef6cb1b6 in ?? ()
#7  0x00007f8d503cfe76 in QtPrivate::QSlotObjectBase::call (a=0x7fff28446d10, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#8  QSingleShotTimer::timerEvent (this=0x55eef02f2480) at kernel/qtimer.cpp:310
#9  0x00007f8d503c4653 in QObject::event (this=0x55eef02f2480, e=<optimized out>) at kernel/qobject.cpp:1278
#10 0x00007f8d50cd18ac in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55eef02f2480, e=0x7fff28446fe0) at kernel/qapplication.cpp:3804
#11 0x00007f8d50cd6d4f in QApplication::notify (this=0x7fff28447380, receiver=0x55eef02f2480, e=0x7fff28446fe0) at kernel/qapplication.cpp:3561
#12 0x00007f8d503963b0 in QCoreApplication::notifyInternal2 (receiver=0x55eef02f2480, event=event@entry=0x7fff28446fe0) at kernel/qcoreapplication.cpp:1015
#13 0x00007f8d503eb3ae in QCoreApplication::sendEvent (event=0x7fff28446fe0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#14 QTimerInfoList::activateTimers (this=0x55eef022e5e0) at kernel/qtimerinfo_unix.cpp:637
#15 0x00007f8d503eb8d1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#16 0x00007f8d4c3897d7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f8d4c389a40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f8d4c389aec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f8d503ec48f in QEventDispatcherGlib::processEvents (this=0x55eef0234320, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#20 0x00007f8d503940fa in QEventLoop::exec (this=this@entry=0x7fff28447230, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#21 0x00007f8d5039c90c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#22 0x000055eeef6c63f5 in ?? ()
#23 0x00007f8d4f9e23f1 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#24 0x000055eeef6c712a in _start ()