From: Mathias Hall-Andersen <mathias@hall-andersen.dk>
Date: Sun, 11 Feb 2018 22:07:07 +0000 (+0100)
Subject: Added missing mutex acquisition
X-Git-Tag: 0.0.20180514~73
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=04ded4c63183927feba565a43fafc987dba32005;p=thirdparty%2Fwireguard-go.git

Added missing mutex acquisition
---

diff --git a/cookie.go b/cookie.go
index 7cea75c..72455a4 100644
--- a/cookie.go
+++ b/cookie.go
@@ -62,6 +62,9 @@ func (st *CookieChecker) Init(pk NoisePublicKey) {
 }
 
 func (st *CookieChecker) CheckMAC1(msg []byte) bool {
+	st.mutex.RLock()
+	defer st.mutex.RUnlock()
+
 	size := len(msg)
 	smac2 := size - blake2s.Size128
 	smac1 := smac2 - blake2s.Size128