Segfault when scrolling down on twitter media pages

[The-Compiler]

Report by V155: http://paste.the-compiler.org/view/aebf75cb

Press and hold j on http://www.twitter.com/fritzde/media -> segfault after some seconds.

Stracktrace without symbols (why?!):

#0  0x00007fb85f2860c9 in raise () from /usr/lib/libpthread.so.0
#1  <signal handler called>
#2  0x00007fb8515ccb41 in ?? () from /usr/lib/libQt5WebKit.so.5
#3  0x00007fb8515c0186 in ?? () from /usr/lib/libQt5WebKit.so.5
#4  0x00007fb8515c01cf in ?? () from /usr/lib/libQt5WebKit.so.5
#5  0x00007fb8515d284a in ?? () from /usr/lib/libQt5WebKit.so.5
#6  0x00007fb85173bb08 in ?? () from /usr/lib/libQt5WebKit.so.5
#7  0x00007fb851745e39 in ?? () from /usr/lib/libQt5WebKit.so.5
#8  0x00007fb851746888 in ?? () from /usr/lib/libQt5WebKit.so.5
#9  0x00007fb85172fc61 in ?? () from /usr/lib/libQt5WebKit.so.5
#10 0x00007fb859ced293 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#11 0x00007fb848454f4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007fb84845a36e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#13 0x00007fb848ee5446 in ?? () from /usr/lib/python3.4/site-packages/PyQt5/QtWidgets.so
#14 0x00007fb859cbd70b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#15 0x00007fb859d1402d in QTimerInfoList::activateTimers() () from /usr/lib/libQt5Core.so.5
#16 0x00007fb859d14471 in ?? () from /usr/lib/libQt5Core.so.5
#17 0x00007fb85b58aa1d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#18 0x00007fb85b58ad08 in ?? () from /usr/lib/libglib-2.0.so.0
#19 0x00007fb85b58adbc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#20 0x00007fb859d15137 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#21 0x00007fb859cbb132 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#22 0x00007fb859cc2aec in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5

[The-Compiler]

I can't reproduce this on Qt 5.4 anymore. Might be the same as #94 and fixed in 5.4.