Fixing stack buffer overflow (read) in SctpDataEngine.

webrtc/media/sctp/sctpdataengine.cc

Index: webrtc/media/sctp/sctpdataengine.cc
diff --git a/webrtc/media/sctp/sctpdataengine.cc b/webrtc/media/sctp/sctpdataengine.cc
index 2d8d48eee370fe2f79721261df3ed7e39cdd3b66..a724b2af69a5df86293f828e7bde4e2a7b2da796 100644
--- a/webrtc/media/sctp/sctpdataengine.cc
+++ b/webrtc/media/sctp/sctpdataengine.cc
@@ -550,8 +550,7 @@ bool SctpDataMediaChannel::Connect() {
   // Set the MTU and disable MTU discovery.
   // We can only do this after usrsctp_connect or it has no effect.
   sctp_paddrparams params = {{0}};
-  memcpy(reinterpret_cast<sockaddr*>(&params.spp_address),
-         reinterpret_cast<sockaddr*>(&remote_sconn), sizeof(sockaddr));
+  memcpy(&params.spp_address, &remote_sconn, sizeof(remote_sconn));
   params.spp_flags = SPP_PMTUD_DISABLE;
   params.spp_pathmtu = kSctpMtu;
   if (usrsctp_setsockopt(sock_, IPPROTO_SCTP, SCTP_PEER_ADDR_PARAMS, &params,