https://bugs.kde.org/show_bug.cgi?id=523272
Bug ID: 523272
Summary: Undo after closing a project crashes labplot
Classification: Applications
Product: LabPlot2
Version First 2.10.1
Reported In:
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
DESCRIPTION
Undo after closing a project/worksheet crashes on the freed Worksheet
(use-after-free
in the undo stack)
Does not reproduce in labplot 2.11.0
STEPS TO REPRODUCE
1. Open a project containing a worksheet (e.g. any project with a
plot/worksheet.
Reproduced using `data/example_projects/lake-level.lml` example project.
2. Select the worksheet, then: Worksheet menu (right click) -> Layout -> No
Layout.
(The undo action becomes enabled.)
3. Project menu -> Close (do not save)
4. Edit menu -> Undo (or Ctrl+Z).
OBSERVED RESULT
LabPlot crashes immediately (SIGSEGV) when Undo is triggered.
EXPECTED RESULT
Undo should either have no effect (since its target worksheet no longer
exists) or should be unavailable/disabled once the worksheet it applies to
has been closed.
SOFTWARE/OS VERSIONS
Operating System: Ubuntu 24.04.04 LTS (noble)
Qt Version: 5.15.2
Backtrace
Thread 1 "labplot2" received signal SIGSEGV, Segmentation fault.
QList<QGraphicsItem*>::QList (this=0x7fffffffca28, l=...) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:856
856 if (!d->ref.ref()) {
#0 QList<QGraphicsItem*>::QList (this=0x7fffffffca28, l=...) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:856
#1 WorksheetView::selectedItems (this=0x5555564cd1a0) at
src/commonfrontend/worksheet/WorksheetView.cpp:2548
#2 0x00005555557c708a in WorksheetPrivate::updateLayout (this=0x55555635b540,
undoable=true) at src/backend/worksheet/Worksheet.cpp:1554
#3 0x00005555557cece7 in WorksheetSetLayoutCmd::finalize (this=0x5555566c2bb0)
at src/backend/worksheet/Worksheet.cpp:640
#4 0x00007ffff4d3182d in QUndoCommand::undo() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5 0x00007ffff4d33682 in QUndoStack::undo() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#6 0x000055555565d3c4 in MainWin::undo (this=0x555555feda70) at
src/kdefrontend/MainWin.cpp:2258
#7 0x00007ffff3d12dbf in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007ffff4964f94 in QAction::triggered(bool) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9 0x00007ffff4967eab in QAction::activate(QAction::ActionEvent) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
... (Qt event dispatch frames) ...
#31 0x0000555555648aea in main (argc=2, argv=<optimized out>) at
src/kdefrontend/LabPlot.cpp:258
--
You are receiving this mail because:
You are watching all bug changes.
