Fix GError use-after-free

diff --git a/src/plugins/dkim_check.c b/src/plugins/dkim_check.c
index 7cf65f2a3d0f865d65ef04feb53ba1792289acc0..494c458eae73c784754be01b98224f94857b6a6d 100644 (file)
--- a/src/plugins/dkim_check.c
+++ b/src/plugins/dkim_check.c
@@ -478,6 +478,7 @@ dkim_symbol_callback (struct rspamd_task *task, void *unused)
                                                msg_info_task ("<%s> cannot parse DKIM context: %s",
                                                                task->message_id, err->message);
                                                g_error_free (err);
+                                               err = NULL;
                                        }
                                        else {
                                                msg_info_task ("<%s> cannot parse DKIM context: "