buffer overflow in QPulseAudioInput::read()

        if (pa_stream_peek(m_stream, &audioBuffer, &length) < 0) {
            qWarning() << QString("pa_stream_peek() failed: %1").arg(pa_strerror(pa_context_errno(pa_stream_get_context(m_stream))));
            pa_threaded_mainloop_unlock(pulseEngine->mainloop());
            return 0;
        }

        qint64 l = 0;
        if (m_pullMode) {
            l = m_audioSource->write((const char*)audioBuffer, length);
            length = l;
        } else {
            memcpy(data, audioBuffer, length);
        }