[Fix] Fix potential HTTP connection structure corruption

Issue: #550
Reported by: @moisseev

diff --git a/src/libutil/map.c b/src/libutil/map.c
index 377154b8f8d9ec72ea15a4eb3dcfe283f9634bac..ee84f4b4195575d60e6e299658a2ce4ebf1e4d0d 100644 (file)
--- a/src/libutil/map.c
+++ b/src/libutil/map.c
@@ -215,7 +215,8 @@ free_http_cbdata (struct http_callback_data *cbd)
        }
 
        if (cbd->conn) {
-               rspamd_http_connection_free (cbd->conn);
+               rspamd_http_connection_unref (cbd->conn);
+               cbd->conn = NULL;
        }
 
        if (cbd->fd != -1) {