==2016== Invalid read of size 4
==2016== at 0x4E24146: QString::operator==(QString const&) const (in /usr/lib/qt4/lib/libQtCore.so.4.2.3)
==2016== by 0x840E382: QCA::ProviderManager::scan() (qca_plugin.cpp:318)
==2016== by 0x8406D85: QCA::scanForPlugins() (qca_core.cpp:270)
==2016== by 0x8424E3A: QCA::KeyStoreManager::scan() const (qca_keystore.cpp:898)
==2016== by 0x8424F0A: QCA::KeyStoreManager::start() (qca_keystore.cpp:839)
==2016== by 0x83DF218: main (main.cpp:240)
==2016== Address 0x8 is not stack'd, malloc'd or (recently) free'd