https://bugs.kde.org/show_bug.cgi?id=502347
Bug ID: 502347
Summary: Cut > Open > Fit crashes Umbrello with a segfault
Classification: Applications
Product: umbrello
Version: Git
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: umbrello-de...@kde.org
Reporter: dillonotto...@gmail.com
Target Milestone: ---
SUMMARY
Deterministic sequence of UI interactions leads to a segmentation fault and
Umbrello crashing.
STEPS TO REPRODUCE
1. Open Umbrello
2. Select Cut and close the pop up window
3. Select Open, then Discard. Close the "Open File" pop up window.
4. Select Fit
OBSERVED RESULT
Umbrello crashes with a segmentation fault.
VIDEO
https://youtu.be/vqmSrQ6zO2g
VERSIONS
Ubuntu 24.10
Reproduced on most recent version available via apt: umbrello 2.38.5
(Applications 23.08.5)
And on most recent version built from source: umbrello 2.38.70-8b195bd0e
(experimental) (Applications 25.07.70)
BACKTRACE
```
Thread 1 "umbrello5" received signal SIGSEGV, Segmentation fault.
0x00007ffff6cf8074 in QGraphicsView::scene() const ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
(gdb) bt
#0 0x00007ffff6cf8074 in QGraphicsView::scene() const ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#1 0x0000555555981252 in UMLView::umlScene (this=0x0)
at /home/dillon/git/umbrello/umbrello/umlview.cpp:53
#2 0x000055555591f95f in UMLApp::slotZoomFit (this=0x555555f2ab70)
at /home/dillon/git/umbrello/umbrello/uml.cpp:706
#3 0x00005555556405a0 in UMLApp::qt_static_metacall (_o=0x555555f2ab70,
_c=QMetaObject::InvokeMetaMethod, _id=73, _a=0x7fffffffcd90)
at
/home/dillon/git/umbrello/build/umbrello/libumbrello_autogen/EWIEGA46WW/moc_uml.cpp:556
#4 0x00007ffff5d24862 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007ffff6a6a634 in QAbstractButton::clicked(bool) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#6 0x00007ffff6a6a8bf in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7 0x00007ffff6a6c54f in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8 0x00007ffff6a6c77b in QAbstractButton::mouseReleaseEvent(QMouseEvent*) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9 0x00007ffff6b732e6 in QToolButton::mouseReleaseEvent(QMouseEvent*) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007ffff69b1258 in QWidget::event(QEvent*) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007ffff696bef5 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007ffff69746af in QApplication::notify(QObject*, QEvent*) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007ffff5ce8c98 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffff697252d in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ffff69cbcb7 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007ffff69cf3cf in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007ffff696bef5 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007ffff5ce8c98 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ffff614ab87 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007ffff611afac in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007ffff08f63f6 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#22 0x00007ffff41b7397 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ffff4217dc7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ffff41b68b3 in g_main_context_iteration ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007ffff5d47afd in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007ffff5ce75ab in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007ffff5cf0286 in QCoreApplication::exec() ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x000055555562c4cc in main (argc=1, argv=0x7fffffffdcb8)
at /home/dillon/git/umbrello/umbrello/main.cpp:258
```
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