Bug 461738

Application: umbrello5 (2.35.1 (Applications 22.08.1))

Qt Version: 5.15.6
Frameworks Version: 5.99.0
Operating System: Linux 6.0.5-200.fc36.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora release 36 (Thirty Six)"
DrKonqi: 5.25.5 [KCrashBackend]

-- Information about the crash:
It appears that the C++ parser that Umbrello can crash in certain situations (from looking at the code, it looks like it's trying to access a null unique_ptr (which results in an assert failure within libstdc++)). If you want, I can try to track down the precise code that can do so, but the code itself seems like it's badly written in the first place... (as in, it seems like it should be checking for a null pointer in a different way)

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Umbrello UML Modeller (umbrello5), signal: Aborted

[KCrash Handler]
#4  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#5  0x00007f8d06c8ec73 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78
#6  0x00007f8d06c3e986 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#7  0x00007f8d06c287f4 in __GI_abort () at abort.c:79
#8  0x00007f8d070d7dd0 in std::__glibcxx_assert_fail(char const*, int, char const*, char const*) (file=file@entry=0x5567f3068840 "/usr/include/c++/12/bits/unique_ptr.h", line=line@entry=445, function=function@entry=0x5567f3068d28 "typename std::add_lvalue_reference<_Tp>::type std::unique_ptr<_Tp, _Dp>::operator*() const [with _Tp = InitDeclaratorAST; _Dp = std::default_delete<InitDeclaratorAST>; typename std::add_lvalue_referen"..., condition=condition@entry=0x5567f306873b "get() != pointer()") at ../../../../../libstdc++-v3/src/c++11/debug.cc:60
#9  0x00005567f2f74817 in std::unique_ptr<InitDeclaratorAST, std::default_delete<InitDeclaratorAST> >::operator*() const (this=<optimized out>) at /usr/include/c++/12/bits/unique_ptr.h:443
#10 std::unique_ptr<InitDeclaratorAST, std::default_delete<InitDeclaratorAST> >::operator*() const (this=<optimized out>) at /usr/include/c++/12/bits/unique_ptr.h:443
#11 Parser::parseDeclarationInternal(std::unique_ptr<DeclarationAST, std::default_delete<DeclarationAST> >&) (this=<optimized out>, node=std::unique_ptr<DeclarationAST> = {...}) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/parser.cpp:3161
#12 0x00005567f2f68f07 in Parser::parseMemberSpecification(std::unique_ptr<DeclarationAST, std::default_delete<DeclarationAST> >&) (node=std::unique_ptr<DeclarationAST> = {...}, this=0x7ffe1dc0dea0) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/parser.cpp:2145
#13 Parser::parseClassSpecifier(std::unique_ptr<TypeSpecifierAST, std::default_delete<TypeSpecifierAST> >&) (this=0x7ffe1dc0dea0, node=std::unique_ptr<TypeSpecifierAST> = {...}) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/parser.cpp:2026
#14 0x00005567f2f5e478 in Parser::parseDeclaration(std::unique_ptr<DeclarationAST, std::default_delete<DeclarationAST> >&) (this=0x7ffe1dc0dea0, node=std::unique_ptr<DeclarationAST> = {...}) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/parser.cpp:532
#15 0x00005567f2f40ded in Parser::parseTranslationUnit(QExplicitlySharedDataPointer<TranslationUnitAST>&) (node=<synthetic pointer>..., this=0x7ffe1dc0dea0) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/parser.cpp:468
#16 Driver::ParseHelper::parse() (this=this@entry=0x7ffe1dc0dfa0) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/driver.cpp:345
#17 0x00005567f2f46a60 in Driver::parseFile(QString const&, bool, bool, bool) (this=0x5567f4dd9a40, fileName=..., onlyPreProcess=<optimized out>, force=<optimized out>, macrosGlobal=<optimized out>) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/lib/cppparser/driver.cpp:560
#18 0x00005567f2f0571f in CppImport::parseFile(QString const&) (this=0x5567f4d5bfe0, fileName=...) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/umbrello/codeimport/cppimport.cpp:143
#19 0x00005567f2d316ee in ClassImport::importFile(QString const&) (fileName=..., this=0x5567f4d5bfe0) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/umbrello/codeimport/classimport.cpp:120
#20 CodeImpThread::run() (this=0x5567f4dd4770) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/umbrello/codeimpwizard/codeimpthread.cpp:50
#21 0x00005567f2d346b1 in CodeImpStatusPage::importCodeFile(bool) (this=0x5567f4b81f10, noError=<optimized out>) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/umbrello/codeimpwizard/codeimpstatuspage.cpp:180
#22 0x00007f8d076dbb2f in doActivate<false>(QObject*, int, void**) (sender=0x5567f4dc1a30, signal_index=3, argv=0x7ffe1dc0e320) at kernel/qobject.cpp:3931
#23 0x00007f8d076d6927 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x5567f4dc1a30, m=m@entry=0x7f8d0796d5e0 <QSingleShotTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3979
#24 0x00007f8d076dee03 in QSingleShotTimer::timeout() (this=0x5567f4dc1a30) at .moc/qtimer.moc:130
#25 QSingleShotTimer::timerEvent(QTimerEvent*) (this=0x5567f4dc1a30) at kernel/qtimer.cpp:323
#26 0x00007f8d076d2ad5 in QObject::event(QEvent*) (this=0x5567f4dc1a30, e=0x7ffe1dc0e4c0) at kernel/qobject.cpp:1369
#27 0x00007f8d083aed02 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x5567f4dc1a30, e=0x7ffe1dc0e4c0) at kernel/qapplication.cpp:3637
#28 0x00007f8d076a81c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x5567f4dc1a30, event=0x7ffe1dc0e4c0) at kernel/qcoreapplication.cpp:1064
#29 0x00007f8d076f83b1 in QTimerInfoList::activateTimers() (this=0x5567f3ca4fa0) at kernel/qtimerinfo_unix.cpp:643
#30 0x00007f8d076f8cd4 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#31 idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:230
#32 0x00007f8d02726faf in g_main_dispatch (context=0x7f8cec005010) at ../glib/gmain.c:3417
#33 g_main_context_dispatch (context=0x7f8cec005010) at ../glib/gmain.c:4135
#34 0x00007f8d0277c2c8 in g_main_context_iterate.constprop.0 (context=context@entry=0x7f8cec005010, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4211
#35 0x00007f8d02724940 in g_main_context_iteration (context=0x7f8cec005010, may_block=1) at ../glib/gmain.c:4276
#36 0x00007f8d076f902a in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x5567f3ca4a60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#37 0x00007f8d076a6c1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe1dc0e760, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#38 0x00007f8d085bf5e7 in QDialog::exec() (this=0x5567f4b17d90) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#39 0x00005567f2ced249 in UMLApp::slotImportingWizard() (this=0x5567f3cfce70) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/umbrello/uml.cpp:2963
#40 UMLApp::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x5567f3cfce70, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/redhat-linux-build/umbrello/libumbrello_autogen/EWIEGA46WW/moc_uml.cpp:483
#41 0x00007f8d076dbb2f in doActivate<false>(QObject*, int, void**) (sender=0x5567f402d370, signal_index=4, argv=0x7ffe1dc0e9e0) at kernel/qobject.cpp:3931
#42 0x00007f8d076d6927 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x5567f402d370, m=m@entry=0x7f8d088d4240 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffe1dc0e9e0) at kernel/qobject.cpp:3979
#43 0x00007f8d083a82e6 in QAction::triggered(bool) (this=this@entry=0x5567f402d370, _t1=<optimized out>) at .moc/moc_qaction.cpp:376
#44 0x00007f8d083aafa3 in QAction::activate(QAction::ActionEvent) (this=0x5567f402d370, event=<optimized out>) at kernel/qaction.cpp:1161
#45 0x00007f8d08534f32 in QMenuPrivate::activateCausedStack(QVector<QPointer<QWidget> > const&, QAction*, QAction::ActionEvent, bool) (this=this@entry=0x5567f3f26b70, causedStack=..., action=action@entry=0x5567f402d370, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1384
#46 0x00007f8d0853ce0c in QMenuPrivate::activateAction(QAction*, QAction::ActionEvent, bool) (this=0x5567f3f26b70, action=0x5567f402d370, action_e=QAction::Trigger, self=<optimized out>) at widgets/qmenu.cpp:1461
#47 0x00007f8d083f1808 in QWidget::event(QEvent*) (this=0x5567f3f24110, event=0x7ffe1dc0efc0) at kernel/qwidget.cpp:9034
#48 0x00007f8d083aed02 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x5567f3c7e910, receiver=receiver@entry=0x5567f3f24110, e=e@entry=0x7ffe1dc0efc0) at kernel/qapplication.cpp:3637
#49 0x00007f8d083b7372 in QApplication::notify(QObject*, QEvent*) (this=<optimized out>, receiver=0x5567f3f24110, e=<optimized out>) at kernel/qapplication.cpp:3081
#50 0x00007f8d076a81c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x5567f3f24110, event=0x7ffe1dc0efc0) at kernel/qcoreapplication.cpp:1064
#51 0x00007f8d083b5472 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) (receiver=0x5567f3f24110, event=event@entry=0x7ffe1dc0efc0, alienWidget=<optimized out>, nativeWidget=0x5567f3f24110, buttonDown=buttonDown@entry=0x7f8d0890c330 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2619
#52 0x00007f8d0840afc5 in QWidgetWindow::handleMouseEvent(QMouseEvent*) (this=0x5567f48a30f0, event=0x7ffe1dc0f270) at kernel/qwidgetwindow.cpp:580
#53 0x00007f8d0840df30 in QWidgetWindow::event(QEvent*) (this=0x5567f48a30f0, event=0x7ffe1dc0f270) at kernel/qwidgetwindow.cpp:300
#54 0x00007f8d083aed02 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x5567f48a30f0, e=0x7ffe1dc0f270) at kernel/qapplication.cpp:3637
#55 0x00007f8d076a81c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x5567f48a30f0, event=0x7ffe1dc0f270) at kernel/qcoreapplication.cpp:1064
#56 0x00007f8d07b6ae7d in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) (e=0x7f8ce4005fa0) at kernel/qguiapplication.cpp:2278
#57 0x00007f8d07b4a02c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (flags=...) at kernel/qwindowsysteminterface.cpp:1169
#58 0x00007f8d02582414 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5WaylandClient.so.5
#59 0x00007f8d02726faf in g_main_dispatch (context=0x7f8cec005010) at ../glib/gmain.c:3417
#60 g_main_context_dispatch (context=0x7f8cec005010) at ../glib/gmain.c:4135
#61 0x00007f8d0277c2c8 in g_main_context_iterate.constprop.0 (context=context@entry=0x7f8cec005010, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4211
#62 0x00007f8d02724940 in g_main_context_iteration (context=0x7f8cec005010, may_block=1) at ../glib/gmain.c:4276
#63 0x00007f8d076f902a in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x5567f3ca4a60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#64 0x00007f8d076a6c1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe1dc0f600, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#65 0x00007f8d076aece2 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#66 0x00007f8d07b5fbe0 in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1863
#67 0x00007f8d083aec79 in QApplication::exec() () at kernel/qapplication.cpp:2829
#68 0x00005567f2cb91ca in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/umbrello-22.08.1-2.fc36.x86_64/umbrello/main.cpp:239
[Inferior 1 (process 2980175) detached]

Reported using DrKonqi
This report was filed against 'kde' because the product 'umbrello5' could not be located in Bugzilla. Add it to drkonqi's mappings file!