[okular] [Bug 510920] New: Okular crashes after applying a digital signature

[Darren Peets]

https://bugs.kde.org/show_bug.cgi?id=510920

            Bug ID: 510920
           Summary: Okular crashes after applying a digital signature
    Classification: Applications
           Product: okular
      Version First 23.08.5
       Reported In:
          Platform: unspecified
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: dpeets at gmail.com
  Target Milestone: ---

Application: okular (23.08.5)

Qt Version: 5.15.13
Frameworks Version: 5.115.0
Operating System: Linux 6.8.0-63-generic x86_64
Windowing System: X11
Distribution: Ubuntu 24.04.3 LTS
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
After I digitally sign a PDF in a signature field, Okular often, but not
always, crashes when opening the signed version.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Okular (okular), signal: Segmentation fault

[KCrash Handler]
#4  0x00007e4c0c0cf2e7 in Okular::Page::number() const () from
/lib/x86_64-linux-gnu/libOkular5Core.so.11
#5  0x00007e4c0c2b8db6 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so
#6  0x00007e4c14f12e16 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007e4c15c676e4 in QAbstractButton::clicked(bool) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007e4c15c6796f in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007e4c15c695b0 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007e4c15c697b8 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007e4c15bb0df8 in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007e4c15b6bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007e4c15b746b0 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007e4c14ed8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007e4c15b72874 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007e4c15bcaa39 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007e4c15bcdfbf in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007e4c15b6bd45 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007e4c14ed8118 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007e4c15345a3b in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007e4c15317bfc in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007e4c100fcd06 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007e4c139145c5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007e4c13973737 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007e4c13913a63 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007e4c14f35279 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007e4c14ed6a7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007e4c14edf3e8 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000064d9335f1d1d in ?? ()
#30 0x00007e4c1442a1ca in __libc_start_call_main
(main=main at entry=0x64d9335f0800, argc=argc at entry=2,
argv=argv at entry=0x7ffd7c1dac48) at ../sysdeps/nptl/libc_start_call_main.h:58
#31 0x00007e4c1442a28b in __libc_start_main_impl (main=0x64d9335f0800, argc=2,
argv=0x7ffd7c1dac48, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffd7c1dac38) at ../csu/libc-start.c:360
#32 0x000064d9335f2b65 in ?? ()
[Inferior 1 (process 3192658) detached]

The reporter indicates this bug may be a duplicate of or related to bug 481362,
bug 475798.

Reported using DrKonqi

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