Qt SSL leak

Leak occurs in qsslsocket_openssl.cpp following to call to q_SSL_load_error_strings() in QSslSocketPrivate::ensureInitialized.

According to OpenSSL documentation, calls to q_SSL_load_error_strings must eventually be followed by a call to ERR_free_strings to free the loaded strings. ERR_free_strings does not seem to be called at all in Qt SSL files.

Call stack is available in attached Valgrind report extract.