auth: Fix request leak when client tries to authenticate with unsupported mechanism

diff --git a/src/auth/auth-request-handler.c b/src/auth/auth-request-handler.c
index 769d1e45f5f561efe514295ed7e28c9f6cf57f16..17fd46720234baec3a6fa1d175f077e1c9ec18e4 100644 (file)
--- a/src/auth/auth-request-handler.c
+++ b/src/auth/auth-request-handler.c
@@ -682,8 +682,10 @@ int auth_request_handler_auth_begin(struct auth_request_handler *handler,
        const struct sasl_server_mech *mech;
 
        if (auth_request_handler_find_mech(handler, request, mech_name,
-                                          &mech) < 0)
+                                          &mech) < 0) {
+               auth_request_unref(&request);
                return -1;
+       }
        auth_request_init_sasl(request, mech);
 
        request->to_abort = timeout_add(MASTER_AUTH_SERVER_TIMEOUT_SECS * 1000,