https://bugs.kde.org/show_bug.cgi?id=489268
Bug ID: 489268
Summary: krfb sigsegv in libqt in QImage::sizeInBytes() const
() from /lib64/libQt6Gui.so.6
Classification: Applications
Product: krfb
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: grundleb...@googlemail.com
Reporter: lcst...@gmail.com
Target Milestone: ---
Fedora 40 Workstation
krfb - 24.05.0-2.fc40
SUMMARY
```
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `krfb'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f793017319f in QImage::sizeInBytes() const () from
/lib64/libQt6Gui.so.6
[Current thread is 1 (Thread 0x7f7929a49d00 (LWP 9239))]
(gdb) bt
#0 0x00007f793017319f in QImage::sizeInBytes() const () from
/lib64/libQt6Gui.so.6
#1 0x00007f791895f3eb in
QtPrivate::QCallableObject<PWFrameBuffer::Private::Private(PWFrameBuffer*)::{lambda(PipeWireFrame
const&)#1}, QtPrivate::List<PipeWireFrame const&>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () from
/usr/lib64/qt6/plugins/krfb/framebuffer/pw.so
#2 0x00007f792f9fa752 in void doActivate<false>(QObject*, int, void**) () from
/lib64/libQt6Core.so.6
#3 0x00007f791885d74c in PipeWireSourceStream::frameReceived(PipeWireFrame
const&) () from /lib64/libKPipeWire.so.6
#4 0x00007f7918863883 in PipeWireSourceStream::handleFrame(pw_buffer*) () from
/lib64/libKPipeWire.so.6
#5 0x00007f79188645af in PipeWireSourceStream::process() () from
/lib64/libKPipeWire.so.6
#6 0x00007f79186e9488 in do_call_process () from /lib64/libpipewire-0.3.so.0
#7 0x00007f791864152a in flush_items () from
/usr/lib64/spa-0.2/support/libspa-support.so
#8 0x00007f7918640445 in source_event_func () from
/usr/lib64/spa-0.2/support/libspa-support.so
#9 0x00007f7918642246 in loop_iterate () from
/usr/lib64/spa-0.2/support/libspa-support.so
#10 0x00007f7918852409 in
QtPrivate::QCallableObject<PipeWireCore::init(int)::{lambda()#1},
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) () from /lib64/libKPipeWire.so.6
#11 0x00007f792f9fa752 in void doActivate<false>(QObject*, int, void**) () from
/lib64/libQt6Core.so.6
#12 0x00007f792fa0802d in QSocketNotifier::activated(QSocketDescriptor,
QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) () from
/lib64/libQt6Core.so.6
#13 0x00007f792fa0883b in QSocketNotifier::event(QEvent*) () from
/lib64/libQt6Core.so.6
#14 0x00007f7930b8b168 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt6Widgets.so.6
#15 0x00007f792f995b18 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt6Core.so.6
#16 0x00007f792fc7dd0f in socketNotifierSourceDispatch(_GSource*, int
(*)(void*), void*) () from /lib64/libQt6Core.so.6
#17 0x00007f792e516e8c in g_main_context_dispatch_unlocked.lto_priv () from
/lib64/libglib-2.0.so.0
#18 0x00007f792e578c98 in g_main_context_iterate_unlocked.isra () from
/lib64/libglib-2.0.so.0
#19 0x00007f792e518383 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#20 0x00007f792fc7cb53 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#21 0x00007f792f9a2713 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#22 0x00007f792f99e69c in QCoreApplication::exec() () from
/lib64/libQt6Core.so.6
#23 0x0000558736254912 in main ()
```
STEPS TO REPRODUCE
1. launch krfb in fedora 40
2. "Remote Control Requested" Dialog is presented with buttons Share/Cancel
3. Click share
OBSERVED RESULT
```
$ krfb
libEGL warning: pci id for fd 9: 1b36:0100, driver (null)
libEGL warning: MESA-LOADER: failed to open qxl: /usr/lib64/dri/qxl_dri.so:
cannot open shared object file: No such file or directory (search paths
/usr/lib64/dri, suffix _dri)
MESA: error: ZINK: failed to choose pdev
libEGL warning: egl: failed to create dri2 screen
Initializing D-Bus connectivity with XDG Desktop Portal
DBus session created:
"/org/freedesktop/portal/desktop/request/1_113/krfb4080005267"
kpipewire_logging: Failed to query DMA-BUF formats.
Segmentation fault (core dumped)
```
EXPECTED RESULT
No Crash
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.1.0-3.fc40
(available in About System)
KDE Plasma Version: 6.1.0-3.fc40
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
ADDITIONAL INFORMATION
Operating System: Fedora Linux 40
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
Kernel Version: 6.9.5-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 64 × QEMU Virtual CPU version 2.5+
Memory: 31.3 GiB of RAM
Graphics Processor: llvmpipe
Manufacturer: QEMU
Product Name: Standard PC (i440FX + PIIX, 1996)
System Version: pc-i440fx-9.0
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