https://bugs.kde.org/show_bug.cgi?id=378787
Bug ID: 378787
Summary: KDialog crashes if given unknown command line options
Product: kdialog
Version: unspecified
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: br...@frogmouth.net
Reporter: beo...@gmail.com
Target Milestone: ---
KDialog crashes if it is given no, or unknown, command line options. The
backtrace is:
Application: kdialog (kdialog), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4892ebf000 (LWP 27369))]
Thread 2 (Thread 0x7f487ea0c700 (LWP 27370)):
#0 0x00007f488ea4567d in poll () from /usr/lib/libc.so.6
#1 0x00007f488b5268e0 in ?? () from /usr/lib/libxcb.so.1
#2 0x00007f488b528679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3 0x00007f4880d679e9 in QXcbEventReader::run (this=0x846f80) at
qxcbconnection.cpp:1345
#4 0x00007f488f13e6b8 in QThreadPrivate::start (arg=0x846f80) at
thread/qthread_unix.cpp:368
#5 0x00007f48898fe2e7 in start_thread () from /usr/lib/libpthread.so.0
#6 0x00007f488ea4f54f in clone () from /usr/lib/libc.so.6
Thread 1 (Thread 0x7f4892ebf000 (LWP 27369)):
[KCrash Handler]
#6 std::__atomic_base<QMutexData*>::compare_exchange_strong
(__m2=std::memory_order_acquire, __m1=std::memory_order_acquire,
__p2=<optimized out>, __p1=@0x7fff386a0218: 0x0, this=0x20) at
/usr/include/c++/6.3.1/bits/atomic_base.h:752
#7 std::atomic<QMutexData*>::compare_exchange_strong
(__m2=std::memory_order_acquire, __m1=std::memory_order_acquire,
__p2=<optimized out>, __p1=@0x7fff386a0218: 0x0, this=0x20) at
/usr/include/c++/6.3.1/atomic:466
#8 QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*>
(currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0,
_q_value=...) at
../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:290
#9 QBasicAtomicPointer<QMutexData>::testAndSetAcquire (currentValue=<synthetic
pointer>: <optimized out>, newValue=<optimized out>, expectedValue=0x0,
this=0x20) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:262
#10 QBasicMutex::fastTryLock (current=<synthetic pointer>: <optimized out>,
this=0x20) at thread/qmutex.h:101
#11 QMutex::lock (this=this@entry=0x20) at thread/qmutex.cpp:224
#12 0x00007f4890e59ab7 in QMutexLocker::QMutexLocker (m=0x20, this=<synthetic
pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:199
#13 QDBusConnectionManager::busConnection (this=0x0,
type=type@entry=QDBusConnection::SessionBus) at qdbusconnection.cpp:105
#14 0x00007f4890e5ab7c in QDBusConnection::sessionBus () at
qdbusconnection.cpp:1169
#15 0x00007f487ca23956 in QtCurve::Style::disconnectDBus() () from
/usr/lib/qt/plugins/styles/qtcurve.so
#16 0x00007f487ca61236 in QtCurve::StylePlugin::~StylePlugin() () from
/usr/lib/qt/plugins/styles/qtcurve.so
#17 0x00007f488f30d5b9 in QLibraryPrivate::unload (this=this@entry=0x88a470,
flag=flag@entry=QLibraryPrivate::UnloadSys) at plugin/qlibrary.cpp:562
#18 0x00007f488f303252 in QFactoryLoaderPrivate::~QFactoryLoaderPrivate
(this=0x8898a0, __in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:86
#19 0x00007f488f303379 in QFactoryLoaderPrivate::~QFactoryLoaderPrivate
(this=0x8898a0, __in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:89
#20 0x00007f488f34bfd7 in QScopedPointerDeleter<QObjectData>::cleanup
(pointer=<optimized out>) at
../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:60
#21 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData>
>::~QScopedPointer (this=0x7f4890706858 <(anonymous
namespace)::Q_QGS_loader::innerFunction()::holder+8>, __in_chrg=<optimized
out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:107
#22 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at
kernel/qobject.cpp:900
#23 0x00007f488f3027ae in QFactoryLoader::~QFactoryLoader (this=0x7f4890706850
<(anonymous namespace)::Q_QGS_loader::innerFunction()::holder>,
__in_chrg=<optimized out>) at plugin/qfactoryloader.cpp:211
#24 0x00007f4890072389 in (anonymous namespace)::Q_QGS_loader::Holder::~Holder
(this=<optimized out>, __in_chrg=<optimized out>) at
styles/qstylefactory.cpp:66
#25 0x00007f488e9996c0 in __run_exit_handlers () from /usr/lib/libc.so.6
#26 0x00007f488e99971a in exit () from /usr/lib/libc.so.6
#27 0x00007f488f1f7354 in QCommandLineParser::showHelp (this=<optimized out>,
exitCode=0) at tools/qcommandlineparser.cpp:1036
#28 0x000000000040fcfa in ?? ()
#29 0x00007f488e983511 in __libc_start_main () from /usr/lib/libc.so.6
#30 0x00000000004100fa in _start ()
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