# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1563463670 -10800
# Node ID 01e26357916a2293f27653db8a887892475d3acf
# Parent  c3f60d618c1738620ae82d75f132b18b7f63bd97
HTTP/2: return error on output on closed stream.

Without this, an (incorrect) output on a closed stream could result in
a socket leak.

diff --git a/src/http/v2/ngx_http_v2_filter_module.c b/src/http/v2/ngx_http_v2_filter_module.c
--- a/src/http/v2/ngx_http_v2_filter_module.c
+++ b/src/http/v2/ngx_http_v2_filter_module.c
@@ -1444,6 +1444,12 @@ ngx_http_v2_send_chain(ngx_connection_t 
 
     if (in == NULL || stream->out_closed) {
 
+        if (size) {
+            ngx_log_error(NGX_LOG_ERR, fc->log, 0,
+                          "output on closed stream");
+            return NGX_CHAIN_ERROR;
+        }
+
         if (stream->queued) {
             fc->write->active = 1;
             fc->write->ready = 0;