Qt Bearer thread crash on OS X

A customer complains about my Qt 5 application crashing when idling. Turned out, it's the Qt Bearer thread (is there any way to disable it?):

Thread 4 Crashed:: Qt bearer thread
0 com.apple.CoreFoundation 0x00007fff95fbe4ca CFRelease + 1434
1 libqcorewlanbearer.dylib 0x0000000115c27554 0x115c20000 + 30036
2 libqcorewlanbearer.dylib 0x0000000115c24fb2 0x115c20000 + 20402
3 org.qt-project.QtCore 0x000000010f95e2f2 QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const + 1026
4 org.qt-project.QtCore 0x000000010f95d91a QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) + 2122
5 org.qt-project.QtNetwork 0x000000010fdf8c65 QNetworkConfigurationManagerPrivate::pollEngines() + 629
6 org.qt-project.QtNetwork 0x000000010fe6c037 0x10fd92000 + 892983
7 org.qt-project.QtCore 0x000000010f9877d2 QMetaObject::activate(QObject*, int, int, void**) + 2994
8 org.qt-project.QtCore 0x000000010f9800f0 QObject::event(QEvent*) + 48
9 org.qt-project.QtWidgets 0x000000010eb9eddb QApplicationPrivate::notify_helper(QObject*, QEvent*) + 251
10 org.qt-project.QtWidgets 0x000000010eba20f8 QApplication::notify(QObject*, QEvent*) + 8136
11 org.qt-project.QtCore 0x000000010f954da3 QCoreApplication::notifyInternal(QObject*, QEvent*) + 115
12 org.qt-project.QtCore 0x000000010f9a9196 QTimerInfoList::activateTimers() + 1270
13 org.qt-project.QtCore 0x000000010f9a7e80 QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 256
14 org.qt-project.QtCore 0x000000010f95239d QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 381
15 org.qt-project.QtCore 0x000000010f747a95 QThread::exec() + 117
16 org.qt-project.QtCore 0x000000010f74b523 0x10f716000 + 218403
17 libsystem_pthread.dylib 0x00007fff9791ac13 _pthread_body + 131
18 libsystem_pthread.dylib 0x00007fff9791ab90 _pthread_start + 168
19 libsystem_pthread.dylib 0x00007fff97918375 thread_start + 13