From 477e8177b70acb694759e62d830b8a311a736324 Mon Sep 17 00:00:00 2001
From: Valentin Bartenev <vbart@nginx.com>
Date: Wed, 24 Jan 2018 15:02:56 +0300
Subject: [PATCH] HTTP parser: restricting control chars in header fields
 values.

This also fixes an infinite loop here (found with honggfuzz).
---
 src/nxt_http_parse.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/nxt_http_parse.c b/src/nxt_http_parse.c
index 975fdd98..7393e19e 100644
--- a/src/nxt_http_parse.c
+++ b/src/nxt_http_parse.c
@@ -650,9 +650,7 @@ nxt_http_parse_field_value(nxt_http_request_parse_t *rp, u_char **pos,
             break;
         }
 
-        if (ch == '\0') {
-            return NXT_HTTP_PARSE_INVALID;
-        }
+        return NXT_HTTP_PARSE_INVALID;
     }
 
     if (nxt_fast_path(p != *pos)) {