Fix transport message length check

wireguard-go has a bad length check in its transport message handling.
Although it cannot be exploited because of another length check earlier in the
function, this should be fixed regardless.

diff --git a/receive.go b/receive.go
index 01151cadd2376b2efe2c76e181467869d87dfda5..abe4e5748400c85b4c1c0ddff60d69cbe14d1359 100644 (file)
--- a/receive.go
+++ b/receive.go
@@ -147,7 +147,7 @@ func (device *Device) RoutineReceiveIncoming(IP int, bind Bind) {
 
                        // check size
 
-                       if len(packet) < MessageTransportType {
+                       if len(packet) < MessageTransportSize {
                                continue
                        }