Application: konsole (17.04.1)

Qt Version: 5.6.2
Frameworks Version: 5.32.0
Operating System: Linux 4.4.68-2-default x86_64
Distribution: "openSUSE Leap 42.3 Beta"

-- Information about the crash:
Running a screen session under Konsole. I was selecting some text with the mouse to copy it over clipboard. 
Steps to reproduce: 
- Konsole with two tabs. 
- screen session under fist tab with many (10) screen subtabs
- run some command with a lot of text.
- Shift+PgUp to roll up.
- Start selecting text with mouse. 
- Move cursor below forcing to go to current terminal cursor.

Expected behaviour:
- Text selected, and available through clipboard. 

Current behaviour:
- Konsoled crashed. 

Couldn't reproduce later (few tries).

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f61314f88c0 (LWP 18306))]

Thread 11 (Thread 0x7f610db89700 (LWP 18316)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f610e38a700 (LWP 18315)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f610eb8b700 (LWP 18314)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f610f38c700 (LWP 18313)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f610fb8d700 (LWP 18312)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f611038e700 (LWP 18311)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f6110b8f700 (LWP 18310)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f6111390700 (LWP 18309)):
#0  0x00007f6128d6c0bf in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6118762183 in ?? () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f6118761d07 in ?? () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f611a22a700 (LWP 18308)):
#0  0x00007f6130e2951d in read () from /lib64/libc.so.6
#1  0x00007f612888a750 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f6128849e49 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f612884a2a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f612884a42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f612d4311ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f612d3debfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f612d219f5a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f612b5de295 in ?? () from /usr/lib64/libQt5DBus.so.5
#9  0x00007f612d21ea29 in ?? () from /usr/lib64/libQt5Core.so.5
#10 0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f611c5c4700 (LWP 18307)):
#0  0x00007f6130e2d49d in poll () from /lib64/libc.so.6
#1  0x00007f612918a3e2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f612918bfcf in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f611eb1f0d9 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f612d21ea29 in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f6128d67744 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f6130e35d3d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f61314f88c0 (LWP 18306)):
[KCrash Handler]
#6  0x00007f6130ad6efd in Konsole::TerminalDisplay::charClass(Konsole::Character const&) const () from /usr/lib64/libkonsoleprivate.so.17
#7  0x00007f6130adab54 in Konsole::TerminalDisplay::findWordStart(QPoint const&) () from /usr/lib64/libkonsoleprivate.so.17
#8  0x00007f6130adb5ba in Konsole::TerminalDisplay::extendSelection(QPoint const&) () from /usr/lib64/libkonsoleprivate.so.17
#9  0x00007f6130ad9117 in Konsole::TerminalDisplay::mouseMoveEvent(QMouseEvent*) () from /usr/lib64/libkonsoleprivate.so.17
#10 0x00007f612e3b701e in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#11 0x00007f6130adf42a in Konsole::TerminalDisplay::event(QEvent*) () from /usr/lib64/libkonsoleprivate.so.17
#12 0x00007f612e37528c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007f612e37a164 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007f612d3e0be5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#15 0x00007f612e378e60 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f612e3d0601 in ?? () from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f612e3d2ba3 in ?? () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007f612e37528c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f612e3798ea in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f612d3e0be5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#21 0x00007f612dbbf86b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5
#22 0x00007f612dbc1005 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib64/libQt5Gui.so.5
#23 0x00007f612dba2eab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#24 0x00007f611eb4c8a0 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#25 0x00007f612884a134 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#26 0x00007f612884a388 in ?? () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f612884a42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#28 0x00007f612d43118c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f612d3debfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#30 0x00007f612d3e6ae6 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#31 0x00007f6131117fca in kdemain () from /usr/lib64/libkdeinit5_konsole.so
#32 0x00007f6130d6c6e5 in __libc_start_main () from /lib64/libc.so.6
#33 0x0000000000400789 in _start ()

Reported using DrKonqi