From c4e6894d6af8c6b21598524be0ae89245621d334 Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Mon, 30 Jul 2018 13:34:32 +0100
Subject: [PATCH] Copy sinfo.coords for safety

---
 src/yggdrasil/session.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/yggdrasil/session.go b/src/yggdrasil/session.go
index ac1e3930..bc9d21f0 100644
--- a/src/yggdrasil/session.go
+++ b/src/yggdrasil/session.go
@@ -426,7 +426,8 @@ func (sinfo *sessionInfo) doSend(bs []byte) {
 		// To prevent using empty session keys
 		return
 	}
-	coords := sinfo.coords
+	var coords []byte
+	coords = append(coords, sinfo.coords...)
 	// Read IPv6 flowlabel field (20 bits).
 	// Assumes packet at least contains IPv6 header.
 	flowkey := uint64(bs[1]&0x0f)<<16 | uint64(bs[2])<<8 | uint64(bs[3])