[at-spi2-core] Fix use after free when removing a hung process

[Mike Gorse <mgorse src gnome org>]

commit 9dbffc38e5c13aa6e0e0b234d8f6b3c431d62c3c
Author: Mike Gorse <mgorse suse com>
Date:   Wed Apr 20 15:18:06 2022 -0500

    Fix use after free when removing a hung process

 registryd/deviceeventcontroller.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/registryd/deviceeventcontroller.c b/registryd/deviceeventcontroller.c
index 06d7c5e5..0fe65556 100644
--- a/registryd/deviceeventcontroller.c
+++ b/registryd/deviceeventcontroller.c
@@ -896,8 +896,9 @@ reset_hung_process (DBusPendingCall *pending, void *data)
   {
     if (!strcmp (l->data, dest))
     {
-      hung_processes = g_slist_remove (hung_processes, l->data);
-      g_free (l->data);
+      gpointer l_data = l->data;
+      hung_processes = g_slist_remove (hung_processes, l_data);
+      g_free (l_data);
       break;
     }
   }
@@ -921,8 +922,9 @@ reset_hung_process_from_ping (DBusPendingCall *pending, void *data)
   {
     if (!strcmp (l->data, data))
     {
-      hung_processes = g_slist_remove (hung_processes, l->data);
-      g_free (l->data);
+      gpointer l_data = l->data;
+      hung_processes = g_slist_remove (hung_processes, l_data);
+      g_free (l_data);
       break;
     }
   }