[konsole] [Bug 497633] Dragging a tab on a 'Configure - Konsole' window crashes with a 'invalid nullptr' exception

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=497633

--- Comment #1 from tcanabrava at kde.org ---
Wayland issue, I currently am working on x11 only because of other
unrelated bugs.
if anyone has a working wayland setup and wanna try to fix this.

On Wed, Dec 18, 2024 at 2:32 AM <bugzilla_noreply at kde.org> wrote:

> https://bugs.kde.org/show_bug.cgi?id=497633
>
>             Bug ID: 497633
>            Summary: Dragging a tab on a 'Configure - Konsole' window
>                     crashes with a 'invalid nullptr' exception
>     Classification: Applications
>            Product: konsole
>            Version: 24.12.0
>           Platform: Fedora RPMs
>                 OS: Linux
>             Status: REPORTED
>           Severity: crash
>           Priority: NOR
>          Component: tabbar
>           Assignee: konsole-devel at kde.org
>           Reporter: Bowarc at proton.me
>   Target Milestone: ---
>
> Created attachment 176736
>   --> https://bugs.kde.org/attachment.cgi?id=176736&action=edit
> Quick video showing the crash in gdb
>
> Im a new Linux user so if i did something wrong please tell me
>
> SUMMARY
> Dragging a tab on the 'Configure Konsole' window crashes
>
>
>
> STEPS TO REPRODUCE
> 1. Open Konsole
> 2. Open the Configure window ( ctrl + shift + , )
> 3. Drag a tab onto that new window
>
> OBSERVED RESULT
> Segfault
> Stacktrace:
> ```
> Using host libthread_db library "/lib64/libthread_db.so.1".
> [New Thread 0x7fffe03ff6c0 (LWP 45632)]
> [New Thread 0x7fffdf7ff6c0 (LWP 45633)]
> [New Thread 0x7fffdeffe6c0 (LWP 45634)]
> [New Thread 0x7fffde4e96c0 (LWP 45635)]
> [New Thread 0x7fffddb1e6c0 (LWP 45637)]
> [New Thread 0x7fffdd31d6c0 (LWP 45638)]
> [New Thread 0x7fffd53ff6c0 (LWP 45639)]
> [New Thread 0x7fffd4bfe6c0 (LWP 45640)]
> [Detaching after fork from child process 45641]
> [New Thread 0x7fffbffff6c0 (LWP 45666)]
> [New Thread 0x7fffbf7fe6c0 (LWP 45667)]
> qt.qpa.wayland: Creating a popup with a parent,
> QWidgetWindow(0x555555a81bc0,
> name="MainWindow#1Window") which does not match the current topmost
> grabbing
> popup, QWidgetWindow(0x555555d6dfc0, name="QMenuClassWindow") With some
> shell
> surface protocols, this is not allowed. The wayland QPA plugin is currently
> handling it by setting the parent to the topmost grabbing popup. Note,
> however,
> that this may cause positioning errors and popups closing unxpectedly.
> Please
> fix the transient parent of the popup.
> qt.core.qobject.connect: QObject::connect(Konsole::Session, Unknown):
> invalid
> nullptr parameter
>
> Thread 1 "konsole" received signal SIGSEGV, Segmentation fault.
> Konsole::ViewManager::registerTerminal (this=this at entry=0x0,
> terminal=terminal at entry=0x555555b5ce10)
>     at
> /usr/src/debug/konsole-24.12.0-1.fc41.x86_64/src/ViewManager.cpp:1697
> 1697        connect(terminal, &TerminalDisplay::requestToggleExpansion,
> _viewContainer, &TabbedViewContainer::toggleMaximizeCurrentTerminal,
> Qt::UniqueConnection);
> ```
>
> EXPECTED RESULT
> User not being able to move the tab, and the tab returning to the tabbar
>
> SOFTWARE/OS VERSIONS
> Operating System: Fedora Linux 41
> KDE Plasma Version: 6.2.4
> KDE Frameworks Version: 6.9.0
> Qt Version: 6.8.1
> Kernel Version: 6.12.4-200.fc41.x86_64 (64-bit)
> Graphics Platform: Wayland
> Processors: 16 × AMD Ryzen 7 2700X Eight-Core Processor
> Memory: 15.6 GiB of RAM
> Graphics Processor: NV166
>
> ADDITIONAL INFORMATION
> I made a quick video showing the bug inside gdb
>
> --
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