From: Matthew Nicholson <mnicholson@digium.com>
Date: Mon, 16 May 2011 15:53:26 +0000 (+0000)
Subject: Make sure tcptls_session exists before dereferencing it.
X-Git-Tag: 1.8.5-rc1~11^2~113
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f625f139af52c0d4e215dafd0d271093df425b2;p=thirdparty%2Fasterisk.git

Make sure tcptls_session exists before dereferencing it.

(closes issue #19192)
Reported by: stknob
Patches:
      10-tcptls-unreachable-peer-segfault.patch uploaded by Chainsaw (license 723)
Tested by: vois, Chainsaw


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@319142 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index f350b9799b..63d4a6964f 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -2740,7 +2740,7 @@ static void *_sip_tcp_helper_thread(struct sip_pvt *pvt, struct ast_tcptls_sessi
 	ast_debug(2, "Shutting down thread for %s server\n", tcptls_session->ssl ? "SSL" : "TCP");
 
 cleanup:
-	if (!tcptls_session->client && !authenticated) {
+	if (tcptls_session && !tcptls_session->client && !authenticated) {
 		ast_atomic_fetchadd_int(&unauth_sessions, -1);
 	}