From 03011fa512bc04879f17774450712dade3dc77b9 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Fri, 15 Dec 2006 10:24:57 +0000
Subject: fix segfault when $host is used and *) request is "GET http://host"
 without CR or LF, or timed out *) request is "GET      http://host" with a
 large blank space

---
 src/http/ngx_http_request.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/http/ngx_http_request.c')

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 2c1ac9566..f6dcd6a56 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1104,7 +1104,9 @@ ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
 
         if (r->host_start) {
             r->host_start = new + (r->host_start - old);
-            r->host_end = new + (r->host_end - old);
+            if (r->host_end) {
+                r->host_end = new + (r->host_end - old);
+            }
         }
 
         if (r->port_start) {
-- 
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