Bug 448911

Application: khelpcenter (5.7.6.20123)

Qt Version: 5.15.2
Frameworks Version: 5.80.0
Operating System: Linux 5.11.0-49-generic x86_64
Windowing System: X11
Drkonqi Version: 5.21.4
Distribution: Ubuntu 21.04

-- Information about the crash:
- What I was doing when the application crashed:
I'm using the cppreference man pages in help, when I tried to access the printf page it told me thet it wasn't a valid manpage. when I hit back to go back to the search it segfaults

- Custom settings of the application:
>I'm using the cppreference man pages in help
these. they didn't come with my distro.

The crash can be reproduced every time.

-- Backtrace:
Application: Help Center (khelpcenter), signal: Segmentation fault

[KCrash Handler]
#4  0x00007fbcf01cfb64 in ?? () from /lib/x86_64-linux-gnu/libkdeinit5_khelpcenter.so
#5  0x00007fbcedd4710c in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fbcee940783 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007fbcedd197ba in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fbcedd1c7e1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fbcedd73ba7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fbcebdc58eb in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fbcebe18d28 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fbcebdc3023 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007fbcedd73204 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fbcedd1811b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fbcedd20604 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fbcf01d2853 in kdemain () from /lib/x86_64-linux-gnu/libkdeinit5_khelpcenter.so
#17 0x00007fbceffc8565 in __libc_start_main (main=0x558c42b8e060, argc=1, argv=0x7fffb0fffe18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb0fffe08) at ../csu/libc-start.c:332
#18 0x0000558c42b8e09e in _start ()
[Inferior 1 (process 48419) detached]

Possible duplicates by query: bug 448830, bug 448607, bug 448195, bug 448184, bug 448140.

Reported using DrKonqi