Reading CCCD value using WinRT crashs

When trying to read a CCCD value, the system crashs with invalid memory usage reported in QByteArray.

It's easy to reproduce but I did not took time to isolate the issue in a sample program. But a simple look at the code makes it easy to identify the flaw:

In bluetooth\qlowenergycontroller_winrt.cpp

In QLowEnergyControllerPrivateWinRT::readDescriptor, there is a special piece of code for CCCD:

if (descData.uuid == QBluetoothUuid(QBluetoothUuid::ClientCharacteristicConfiguration))

Then we create a readCompletedLambda function taking a pointer to descData. But descData is a local object, when readCompletedLambda is invoked, after the current function returned, it gets a reference to an object that does not exist anymore. When it tries to use it (descData.value = QByteArray(2, Qt::Uninitialized)), the system crashs.

I experience the crash using Win10 on a laptop.