https://bugs.kde.org/show_bug.cgi?id=502575
Bug ID: 502575
Summary: kaccess crashes while trying to remove something from
an array when enabling colorblindness correction
effect
Classification: Applications
Product: systemsettings
Version: master
Platform: Other
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: kcm_accessibility
Assignee: plasma-b...@kde.org
Reporter: n...@kde.org
CC: duha.b...@gmail.com, nicolas.fe...@gmx.de
Target Milestone: ---
Git master, Qt 6.8.2.
STEPS TO REPRODUCE
1. Navigate to System Settings > Accessibility > Color Blindness Correction
2. Click "enable"
3. Click Apply
OBSERVED RESULT
The effect is successfully applied, but kaccess crashes 100% of the time:
Thread 1 (Thread 0x7f3bf820d980 (LWP 206537)):
[KCrash Handler]
#5 QArrayDataPointer<QInputDevice const*>::data (this=0x0) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/tools/qarraydatapointer.h:120
#6 QArrayDataPointer<QInputDevice const*>::constEnd (this=0x0) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/tools/qarraydatapointer.h:127
#7 QList<QInputDevice const*>::cend (this=0x0) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/tools/qlist.h:644
#8 QtPrivate::sequential_erase_one<QList<QInputDevice const*>, QInputDevice
const*> (c=..., t=<synthetic pointer>: <optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/tools/qcontainertools_impl.h:389
#9 QList<QInputDevice const*>::removeOne<QInputDevice const*> (this=0x0,
t=<synthetic pointer>: <optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/tools/qlist.h:613
#10 QInputDevicePrivate::unregisterDevice (dev=dev@entry=0x22d3f360) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/gui/kernel/qinputdevice.cpp:360
#11 0x00007f3bfa4fe7d3 in QInputDevice::~QInputDevice
(this=this@entry=0x22d3f360, __in_chrg=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/gui/kernel/qinputdevice.cpp:110
#12 0x00007f3bfa530ad7 in QPointingDevice::~QPointingDevice
(this=this@entry=0x22d3f360, __in_chrg=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/gui/kernel/qpointingdevice.cpp:168
#13 0x00007f3be8582fcf in QXcbScrollingDevice::~QXcbScrollingDevice
(this=0x22d3f360, __in_chrg=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbscrollingdevice_p.h:29
#14 QXcbScrollingDevice::~QXcbScrollingDevice (this=0x22d3f360,
__in_chrg=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbscrollingdevice_p.h:29
#15 0x00007f3bf9d4b8ae in QObject::event (this=0x22d3f360, e=0x22d3f380) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/kernel/qobject.cpp:1403
#16 0x00007f3bfb03d9b8 in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x22d3f360, e=0x22d3f380) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/widgets/kernel/qapplication.cpp:3296
#17 0x00007f3bf9cf3590 in QCoreApplication::notifyInternal2
(receiver=0x22d3f360, event=0x22d3f380) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/kernel/qcoreapplication.cpp:1172
#18 0x00007f3bf9cf37ed in QCoreApplication::sendEvent (receiver=<optimized
out>, event=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/kernel/qcoreapplication.cpp:1612
#19 0x00007f3bf9cf6f51 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=52, data=0x22cfd9d0) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/kernel/qcoreapplication.cpp:1946
#20 0x00007f3bf9cf71fd in QCoreApplication::sendPostedEvents
(receiver=<optimized out>, event_type=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/kernel/qcoreapplication.cpp:1800
#21 0x00007f3bf9eb55c9 in operator() (__closure=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/thread/qthread_unix.cpp:403
#22 (anonymous
namespace)::terminate_on_exception<QThreadPrivate::finish()::<lambda()>
>(struct {...} &&) (t=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/thread/qthread_unix.cpp:311
#23 0x00007f3bf9eb5895 in QThreadPrivate::finish (this=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/thread/qthread_unix.cpp:386
#24 destroy_current_thread_data (p=0x22cfd9d0) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/thread/qthread_unix.cpp:130
#25 Cleanup::~Cleanup (this=<optimized out>, __in_chrg=<optimized out>) at
/usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/thread/qthread_unix.cpp:180
#26 0x00007f3bf9629180 in __cxa_finalize (d=0x7f3bfa279020) at
cxa_finalize.c:97
#27 0x00007f3bf9c53a97 in __do_global_dtors_aux () at /lib64/libQt6Core.so.6
#28 0x00007fff17c86750 in ??? ()
#29 0x00007f3bfbe510f2 in _dl_call_fini (closure_map=0x7f3bfbc91000) at
dl-call_fini.c:43
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