From b4c4aa3f8afe7a621b6664a9dcdf8b8cb95d9049 Mon Sep 17 00:00:00 2001
From: Jan Willamowius <jan@willamowius.de>
Date: Thu, 23 Aug 2018 18:06:10 +0200
Subject: [PATCH] add ptr check

---
 ProxyChannel.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ProxyChannel.cxx b/ProxyChannel.cxx
index a2fad78c..c314fdb9 100644
--- a/ProxyChannel.cxx
+++ b/ProxyChannel.cxx
@@ -13563,7 +13563,7 @@ bool H245ProxyHandler::HandleOpenLogicalChannel(H245_OpenLogicalChannel & olc, c
 				} else {
 					lc = FindLogicalChannel(flcn);
 				}
-				if (lc) {
+				if (lc && h225Params) {
 					params.m_keepAliveChannel = IPToH245TransportAddr(GetMasqAddr(), lc->GetPort()); // use RTP port for keepAlives
 					((RTPLogicalChannel*)lc)->SetUsesH46019fc(UsesH46019fc());
 					((RTPLogicalChannel*)lc)->SetRTPSessionID((WORD)h225Params->m_sessionID);