From: Willy Tarreau <w@1wt.eu>
Date: Wed, 23 Sep 2015 10:18:14 +0000 (+0200)
Subject: BUG/MEDIUM: http: do not dereference strm_li(stream)
X-Git-Tag: v1.6-dev6~94
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c29d0cda4b4502c4e04411cab0205d33a04086d2;p=thirdparty%2Fhaproxy.git

BUG/MEDIUM: http: do not dereference strm_li(stream)

Some streams do not have a listener (eg: Lua's cosockets) so
let's check for this. For now this problem cannot happen but
it's definitely unsafe.
---

diff --git a/src/proto_http.c b/src/proto_http.c
index 0fb57d39d8..57cc35487b 100644
--- a/src/proto_http.c
+++ b/src/proto_http.c
@@ -5284,7 +5284,7 @@ void http_end_txn_clean_session(struct stream *s)
 			si_idle_conn(&s->si[1], &srv->idle_conns);
 	}
 
-	s->req.analysers = strm_li(s)->analysers;
+	s->req.analysers = strm_li(s) ? strm_li(s)->analysers : 0;
 	s->res.analysers = 0;
 }