[Minor] Fix use after free

diff --git a/src/lua/lua_http.c b/src/lua/lua_http.c
index f7dd01e878198ffe566060cdf947d6f20208ebf2..6ad5e6d21d04e236feb330f8a41e20362504d5b4 100644 (file)
--- a/src/lua/lua_http.c
+++ b/src/lua/lua_http.c
@@ -467,6 +467,11 @@ static void
 lua_http_dns_handler (struct rdns_reply *reply, gpointer ud)
 {
        struct lua_http_cbdata *cbd = (struct lua_http_cbdata *)ud;
+       struct rspamd_symcache_item *item;
+       struct rspamd_task *task;
+
+       task = cbd->task;
+       item = cbd->item;
 
        if (reply->code != RDNS_RC_NOERROR) {
                lua_http_push_error (cbd, "unable to resolve host");
@@ -497,8 +502,8 @@ lua_http_dns_handler (struct rdns_reply *reply, gpointer ud)
                REF_RELEASE (cbd);
        }
 
-       if (cbd->item) {
-               rspamd_symcache_item_async_dec_check (cbd->task, cbd->item, M);
+       if (item) {
+               rspamd_symcache_item_async_dec_check (task, item, M);
        }
 }