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-rw-r--r--channels/chan_sip.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 41325d169..592a83414 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -2247,6 +2247,8 @@ static void *_sip_tcp_helper_thread(struct sip_pvt *pvt, struct ast_tcptls_sessi
req.ignore = 0;
req.debug = 0;
+ memset(buf, 0, sizeof(buf));
+
if (tcptls_session->ssl) {
set_socket_transport(&req.socket, SIP_TRANSPORT_TLS);
req.socket.port = htons(ourport_tls);