Details
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Bug
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Resolution: Done
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P0: Blocker
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None
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5.12.8
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None
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Linux/Wayland
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ba7ba4cfa25eee93d4d7e76862e434b338b9d90a (qt/qtapplicationmanager/dev) 4b8c7ecc3da63eb96d1ffb47c76b500b4038e402 (qt/qtapplicationmanager/5.15) 5309c184f0b91bc6a03c8e1ca7b83261b63a5f1b (qt/qtapplicationmanager/5.12)
Description
Certain dbus calls on /ApplicationInterface from with an application cause sysui to crash due to abort in libdbus.
Assume following called in a programmatic manner from with an application of runtime 'qml' (probably the same for 'native'), it would lead to a sysui crash
dbus-send --peer="unix:path=/tmp/dbus-qtam/dbus-qtam-<HASHID>" --type=method_call --print-reply "/ApplicationInterface" "org.freedesktop.DBus.Properties.GetAll" string:"io.qt.ApplicationManager.ApplicationInterface"
here the backtrace:
[default] QDBusMarshaller: type `std::nullptr_t' (51) is not registered with D-BUS. Use qDBusRegisterMetaType to register it [unknown:0] [] *** process /opt/qt-5.12/bin/appman (543) crashed *** [unknown:0] [] > why: uncaught signal 6 (Aborted) [unknown:0] [] > where: main thread, TID: 543, pthread ID: 0x7fb335e000 [unknown:0] [] > backtrace: [unknown:0] [] 1: /opt/qt-5.12/bin/appman(+0x1763e4) [0x5581cb03e4] [unknown:0] [] 2: /opt/qt-5.12/bin/appman(+0x17644c) [0x5581cb044c] [unknown:0] [] 3: /opt/qt-5.12/bin/appman(+0x174860) [0x5581cae860] [unknown:0] [] 4: __kernel_rt_sigreturn [+0] [unknown:0] [] 5: gsignal [+0x9c] [unknown:0] [] 6: abort [+0x124] [unknown:0] [] 7: /usr/lib/libdbus-1.so.3(+0x3d03c) [0x7fb531503c] [unknown:0] [] 8: _dbus_strdup [+0] [unknown:0] [] 9: /usr/lib/libdbus-1.so.3(+0x1d9f0) [0x7fb52f59f0] [unknown:0] [] 10: _dbus_type_writer_unrecurse [+0xc4] [unknown:0] [] 11: dbus_message_iter_close_container [+0x134] [unknown:0] [] 12: /usr/lib/libQt5DBus.so.5(+0x61590) [0x7fb60c5590] [unknown:0] [] 13: /usr/lib/libQt5DBus.so.5(+0x61624) [0x7fb60c5624] [unknown:0] [] 14: /usr/lib/libQt5DBus.so.5(+0x6180c) [0x7fb60c580c] [unknown:0] [] 15: /usr/lib/libQt5DBus.so.5(+0x633fc) [0x7fb60c73fc] [unknown:0] [] 16: /usr/lib/libQt5DBus.so.5(+0x65980) [0x7fb60c9980] [unknown:0] [] 17: QDBusArgument::operator<<(QDBusVariant const&) [+0x2c] [unknown:0] [] 18: /usr/lib/libQt5DBus.so.5(+0x6b3d8) [0x7fb60cf3d8] [unknown:0] [] 19: QDBusMetaType::marshall(QDBusArgument&, int, void const*) [+0x1cc] [unknown:0] [] 20: /usr/lib/libQt5DBus.so.5(+0x61800) [0x7fb60c5800] [unknown:0] [] 21: /usr/lib/libQt5DBus.so.5(+0x633fc) [0x7fb60c73fc] [unknown:0] [] 22: /usr/lib/libQt5DBus.so.5(+0x64058) [0x7fb60c8058] [unknown:0] [] 23: /usr/lib/libQt5DBus.so.5(+0x307b4) [0x7fb60947b4] [unknown:0] [] 24: /usr/lib/libQt5DBus.so.5(+0x20354) [0x7fb6084354] [unknown:0] [] 25: /usr/lib/libQt5DBus.so.5(+0x23868) [0x7fb6087868] [unknown:0] [] 26: /usr/lib/libQt5DBus.so.5(+0x290dc) [0x7fb608d0dc] [unknown:0] [] 27: /usr/lib/libQt5DBus.so.5(+0x2b874) [0x7fb608f874] [unknown:0] [] 28: QObject::event(QEvent*) [+0x248] [unknown:0] [] 29: QCoreApplication::notifyInternal2(QObject*, QEvent*) [+0x134] [unknown:0] [] 30: QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) [+0x300] [unknown:0] [] 31: /usr/lib/libQt5Core.so.5(+0x2ff9c8) [0x7fb5d8d9c8] [unknown:0] [] 32: g_main_context_dispatch [+0x284] [unknown:0] [] 33: /usr/lib/libglib-2.0.so.0(+0x4d298) [0x7fb4dc1298] [unknown:0] [] 34: g_main_context_iteration [+0x34] [unknown:0] [] 35: QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) [+0x50] [unknown:0] [] 36: QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) [+0x10c] [unknown:0] [] 37: QCoreApplication::exec() [+0xa0] [unknown:0] [] 38: main [+0x1b8] [unknown:0] [] 39: __libc_start_main [+0xdc] [unknown:0] [] 40: /opt/qt-5.12/bin/appman(+0x3b18c) [0x5581b7518c] [unknown:0] [] > qml stack: empty [unknown:0]