==19731== Invalid read of size 8
==19731==    at 0x67EDCCD: QCoreApplication::postEvent(QObject*, QEvent*, int) (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x42C8F5: HttpGet::requestFinished(QNetworkReply*) (httpget.cpp:169)
==19731==    by 0x4CD133: HttpGet::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (moc_httpget.cpp:69)
==19731==    by 0x67FFF5E: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x63913E1: QNetworkAccessManager::finished(QNetworkReply*) (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x6391430: ??? (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x67FFF5E: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x63B20D8: ??? (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x63B17D9: ??? (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x63B183C: ??? (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x5852E9B: QApplicationPrivate::notify_helper(QObject*, QEvent*) (in /usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.3)
==19731==    by 0x5857309: QApplication::notify(QObject*, QEvent*) (in /usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.3)
==19731==  Address 0x1574ddd8 is 8 bytes inside a block of size 16 free'd
==19731==    at 0x4C2A44B: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==19731==    by 0x639178D: QNetworkAccessManager::~QNetworkAccessManager() (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x6391818: QNetworkAccessManager::~QNetworkAccessManager() (in /usr/lib/x86_64-linux-gnu/libQtNetwork.so.4.8.3)
==19731==    by 0x67FD181: QObjectPrivate::deleteChildren() (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x6800FC5: QObject::~QObject() (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x45E5FE: HttpGet::~HttpGet() (httpget.h:29)
==19731==    by 0x67FD181: QObjectPrivate::deleteChildren() (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x6800FC5: QObject::~QObject() (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731==    by 0x4CDD4B: ZipInstaller::~ZipInstaller() (zipinstaller.h:37)
==19731==    by 0x4C29BF: SelectiveInstallWidget::installFonts() (selectiveinstallwidget.cpp:434)
==19731==    by 0x4C5207: SelectiveInstallWidget::continueInstall(bool) (selectiveinstallwidget.cpp:205)
==19731==    by 0x67FFF5E: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (in /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.3)
==19731== 
==19731== 
==19731== ---- Attach to debugger ? --- [Return/N/n/Y/y/C/c] ----