A part of commit 7ecf29a9db86f7161e2ff48e7bb8ea46a90f954f
Author: Miloslav Trmač <mitr@redhat.com>
Date:   Wed Feb 8 22:57:21 2017 +0100

    Fix a memory leak in server_handle_authentication_agent_response{,2}
    
    Signed-off-by: Miloslav Trmač <mitr@redhat.com>

diff --git a/src/polkitbackend/polkitbackendauthority.c b/src/polkitbackend/polkitbackendauthority.c
index 2bcad62..cad3f74 100644
--- a/src/polkitbackend/polkitbackendauthority.c
+++ b/src/polkitbackend/polkitbackendauthority.c
@@ -1054,6 +1054,7 @@ server_handle_authentication_agent_response (Server                 *server,
   g_dbus_method_invocation_return_value (invocation, g_variant_new ("()"));
 
  out:
+  g_variant_unref (identity_gvariant);
   if (identity != NULL)
     g_object_unref (identity);
 }
commit d9efd2673d73214e7990e3e67cdddfa77c6a8226
Author: Miloslav Trmač <mitr@redhat.com>
Date:   Wed Feb 8 22:55:10 2017 +0100

    Fix a memory leak in server_handle_unregister_authentication_agent
    
    Signed-off-by: Miloslav Trmač <mitr@redhat.com>

diff --git a/src/polkitbackend/polkitbackendauthority.c b/src/polkitbackend/polkitbackendauthority.c
index 7e08e57..2bcad62 100644
--- a/src/polkitbackend/polkitbackendauthority.c
+++ b/src/polkitbackend/polkitbackendauthority.c
@@ -1003,6 +1003,7 @@ server_handle_unregister_authentication_agent (Server                 *server,
   g_dbus_method_invocation_return_value (invocation, g_variant_new ("()"));
 
  out:
+  g_variant_unref (subject_gvariant);
   if (subject != NULL)
     g_object_unref (subject);
 }
commit af4566e1a7e9031b9a05f49c7d27bf379d822016
Author: Miloslav Trmač <mitr@redhat.com>
Date:   Thu Feb 9 19:53:54 2017 +0100

    Fix a memory leak per agent authentication
    
    Signed-off-by: Miloslav Trmač <mitr@redhat.com>

diff --git a/src/polkitbackend/polkitbackendinteractiveauthority.c b/src/polkitbackend/polkitbackendinteractiveauthority.c
index bf0ee48..b8096b3 100644
--- a/src/polkitbackend/polkitbackendinteractiveauthority.c
+++ b/src/polkitbackend/polkitbackendinteractiveauthority.c
@@ -1906,15 +1906,15 @@ authentication_agent_begin_cb (GDBusProxy   *proxy,
   AuthenticationSession *session = user_data;
   gboolean gained_authorization;
   gboolean was_dismissed;
+  GVariant *result;
   GError *error;
 
   was_dismissed = FALSE;
   gained_authorization = FALSE;
 
   error = NULL;
-  if (!g_dbus_proxy_call_finish (proxy,
-                                 res,
-                                 &error))
+  result = g_dbus_proxy_call_finish (proxy, res, &error);
+  if (result == NULL)
     {
       g_printerr ("Error performing authentication: %s (%s %d)\n",
                   error->message,
@@ -1926,6 +1926,7 @@ authentication_agent_begin_cb (GDBusProxy   *proxy,
     }
   else
     {
+      g_variant_unref (result);
       gained_authorization = session->is_authenticated;
       g_debug ("Authentication complete, is_authenticated = %d", session->is_authenticated);
     }