SUMMARY

KPatience 24.02.0 crashes on clicking undo function.

STEPS TO REPRODUCE
1.  Open KPat, Start a game, e.g. "Grandfather"
2.  Click redeal
3.  Click undo

OBSERVED RESULT
The window freezes and has to be terminated forcefully.

ADDITIONAL INFORMATION
GDB / debuginfod does not find debugging symbols, however gdb shows "alloc(): invalid next size" with following backtrace:
# …
[New Thread 0x7fff969196c0 (LWP 23412)]
[Thread 0x7fff969196c0 (LWP 23412) exited]
realloc(): invalid next size

Thread 1 "kpat" received signal SIGABRT, Aborted.
0x00007ffff5aab32c in ?? () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007ffff5aab32c in ??? () at /usr/lib/libc.so.6
#1  0x00007ffff5a5a6c8 in raise () at /usr/lib/libc.so.6
#2  0x00007ffff5a424b8 in abort () at /usr/lib/libc.so.6
#3  0x00007ffff5a43395 in ??? () at /usr/lib/libc.so.6
#4  0x00007ffff5ab52a7 in ??? () at /usr/lib/libc.so.6
#5  0x00007ffff5ab934c in ??? () at /usr/lib/libc.so.6
#6  0x00007ffff5aba1a6 in realloc () at /usr/lib/libc.so.6
#7  0x00007ffff622e4e8 in QArrayData::reallocateUnaligned(QArrayData*, void*, long long, long long, QArrayData::AllocationOption) () at /usr/lib/libQt6Core.so.6
#8  0x00007ffff7c89d5c in ??? () at /usr/lib/libkcardgame.so
#9  0x00007ffff7c6d3b0 in ??? () at /usr/lib/libkcardgame.so
#10 0x00007ffff7c7818b in KCardPile::insert(int, KCard*) () at /usr/lib/libkcardgame.so
#11 0x000055555557acbc in ??? ()
#12 0x000055555557fe19 in ??? ()
#13 0x00007ffff6190ca9 in ??? () at /usr/lib/libQt6Core.so.6
#14 0x00007ffff6ae2077 in QAction::activate(QAction::ActionEvent) () at /usr/lib/libQt6Gui.so.6
#15 0x00007ffff71feb1c in ??? () at /usr/lib/libQt6Widgets.so.6
#16 0x00007ffff720d245 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt6Widgets.so.6
#17 0x00007ffff731f6fe in QToolButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt6Widgets.so.6
#18 0x00007ffff7145065 in QWidget::event(QEvent*) () at /usr/lib/libQt6Widgets.so.6
#19 0x00007ffff70f438b in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt6Widgets.so.6
#20 0x00007ffff70f6be8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt6Widgets.so.6
#21 0x00007ffff6139818 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt6Core.so.6
#22 0x00007ffff70f2327 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib/libQt6Widgets.so.6
#23 0x00007ffff7157a97 in ??? () at /usr/lib/libQt6Widgets.so.6
#24 0x00007ffff7158db0 in ??? () at /usr/lib/libQt6Widgets.so.6
#25 0x00007ffff70f438b in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt6Widgets.so.6
#26 0x00007ffff6139818 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt6Core.so.6
#27 0x00007ffff676f9e5 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt6Gui.so.6
#28 0x00007ffff67da85c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Gui.so.6
#29 0x00007ffff6bb26c4 in ??? () at /usr/lib/libQt6Gui.so.6
#30 0x00007ffff4622f69 in ??? () at /usr/lib/libglib-2.0.so.0
#31 0x00007ffff46813a7 in ??? () at /usr/lib/libglib-2.0.so.0
#32 0x00007ffff4621162 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#33 0x00007ffff63739c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Core.so.6
#34 0x00007ffff6143d6e in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Core.so.6
#35 0x00007ffff613c2b8 in QCoreApplication::exec() () at /usr/lib/libQt6Core.so.6
#36 0x000055555557234d in ??? ()
#37 0x00007ffff5a43cd0 in ??? () at /usr/lib/libc.so.6
#38 0x00007ffff5a43d8a in __libc_start_main () at /usr/lib/libc.so.6
#39 0x00005555555748d5 in ??? ()
(gdb)