https://bugs.kde.org/show_bug.cgi?id=503464
--- Comment #7 from Ming Chuan <m...@culpring.com> --- I got another segfault crash related to tablet event processing, this time stack trace is more straightforward (crash at https://codebrowser.dev/qt6/qtbase/src/gui/kernel/qpointingdevice.cpp.html#279) ``` #0 0x00007ffff3447808 in QPointingDevice::uniqueId (this=this@entry=0x1ec49350) at /build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qpointingdevice.cpp:279 #1 0x00007ffff34011e9 in QGuiApplicationPrivate::processTabletEvent (e=0xef7ea30) at /build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qguiapplication.cpp:2939 #2 0x00007ffff346ce64 in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at /build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qwindowsysteminterface.cpp:1113 #3 0x00007ffff346d08f in QWindowSystemInterface::flushWindowSystemEvents (flags=...) at /build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qwindowsysteminterface.cpp:1082 #4 0x00007ffff2c1ca5e in doActivate<false> (sender=0xe3add0, signal_index=4, argv=0x7ffffffdc538) at /build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:4150 #5 0x00007ffff2c128e7 in QMetaObject::activate (sender=sender@entry=0xe3add0, m=m@entry=0x7ffff30b0fa0 <QAbstractEventDispatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at /build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:4198 #6 0x00007ffff2bab647 in QAbstractEventDispatcher::awake (this=this@entry=0xe3add0) at /build/qtbase-everywhere-src-6.9.0/build/src/corelib/Core_autogen/include/moc_qabstracteventdispatcher.cpp:128 #7 0x00007ffff2ec39db in QEventDispatcherGlib::processEvents (this=0xe3add0, flags=...) at /build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qeventdispatcher_glib.cpp:406 #8 0x00007ffff2bc0beb in QEventLoop::exec (this=this@entry=0x7ffffffdc680, flags=..., flags@entry=...) at /build/qtbase-everywhere-src-6.9.0/src/corelib/global/qflags.h:77 #9 0x00007ffff2bbc02e in QCoreApplication::exec () at /build/qtbase-everywhere-src-6.9.0/src/corelib/global/qflags.h:77 #10 0x000000000040a088 in main () ``` gdb says the value of `d` is `0x114` ``` (gdb) print d $7 = (const QPointingDevicePrivate * const) 0x114 ``` so this likely is some kind of use-after-free bug of `QPointingDevice` or some related class? -- You are receiving this mail because: You are watching all bug changes.
