--- nginx-1.4.3/src/http/modules/ngx_http_gzip_filter_module.c	2013-10-08 05:07:14.000000000 -0700
+++ nginx-1.4.3-patched/src/http/modules/ngx_http_gzip_filter_module.c	2013-10-27 14:53:49.723406912 -0700
@@ -370,7 +370,7 @@ ngx_http_gzip_body_filter(ngx_http_reque
         }
     }
 
-    if (ctx->nomem) {
+    if (ctx->nomem || in == NULL) {
 
         /* flush busy buffers */