From b580770f3afaeec48a15cb8c9d2f9cf72b14e4da Mon Sep 17 00:00:00 2001
From: Vladimir Homutov <vl@nginx.com>
Date: Wed, 11 Jan 2017 12:01:56 +0300
Subject: [PATCH] Stream: avoid infinite loop in case of socket read error.

---
 src/stream/ngx_stream_proxy_module.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/stream/ngx_stream_proxy_module.c b/src/stream/ngx_stream_proxy_module.c
index bfd78d5bb..81a0891de 100644
--- a/src/stream/ngx_stream_proxy_module.c
+++ b/src/stream/ngx_stream_proxy_module.c
@@ -1534,8 +1534,9 @@ ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream,
 
         size = b->end - b->last;
 
-        if (size && src->read->ready && !src->read->delayed) {
-
+        if (size && src->read->ready && !src->read->delayed
+            && !src->read->error)
+        {
             if (limit_rate) {
                 limit = (off_t) limit_rate * (ngx_time() - u->start_sec + 1)
                         - *received;