From: Christopher Faulet <cfaulet@haproxy.com>
Date: Wed, 17 Apr 2019 13:08:42 +0000 (+0200)
Subject: BUG/MEDIUM: htx: Don't return the start-line if the HTX message is empty
X-Git-Tag: v2.0-dev3~246
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3a4d1bea61cb20dd4c00902dfff7a403af19f965;p=thirdparty%2Fhaproxy.git

BUG/MEDIUM: htx: Don't return the start-line if the HTX message is empty

In the function htx_get_stline(), NULL must be returned if the HTX message
doesn't contain any element.

This patch must be backported to 1.9.
---

diff --git a/include/common/htx.h b/include/common/htx.h
index 9cbc953009..cd7db0526e 100644
--- a/include/common/htx.h
+++ b/include/common/htx.h
@@ -280,7 +280,7 @@ static inline struct htx_sl *htx_get_stline(struct htx *htx)
 {
 	struct htx_sl *sl = NULL;
 
-	if (htx->sl_off != -1)
+	if (htx->used && htx->sl_off != -1)
 		sl = ((void *)htx->blocks + htx->sl_off);
 
 	return sl;