From 433f32043319f3ce511e43c22f424429769c76e0 Mon Sep 17 00:00:00 2001
From: Victor Julien <victor@inliniac.net>
Date: Fri, 1 Dec 2017 09:23:29 +0100
Subject: [PATCH] detect/http_start: check if 'line' is valid

In certain conditions like low memory the line can be NULL.

Bug #2307.
---
 src/detect-http-start.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/detect-http-start.c b/src/detect-http-start.c
index 2d587dc228..914ecca4cd 100644
--- a/src/detect-http-start.c
+++ b/src/detect-http-start.c
@@ -109,7 +109,7 @@ static uint8_t *GetBufferForTX(htp_tx_t *tx, uint64_t tx_id,
         headers = tx->response_headers;
         line = tx->response_line;
     }
-    if (headers == NULL)
+    if (line == NULL || headers == NULL)
         return NULL;
 
     size_t line_size = bstr_len(line) + 2;
-- 
2.47.2