From 6f21520a82ad75c5737064adff3e0c51024b7a59 Mon Sep 17 00:00:00 2001
From: Guillaume Ballet <gballet@gmail.com>
Date: Thu, 4 Apr 2019 23:41:52 +0200
Subject: [PATCH] More review feedback

---
 accounts/scwallet/apdu.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/accounts/scwallet/apdu.go b/accounts/scwallet/apdu.go
index db0cf0dca6..bd3660604e 100644
--- a/accounts/scwallet/apdu.go
+++ b/accounts/scwallet/apdu.go
@@ -19,6 +19,7 @@ package scwallet
 import (
 	"bytes"
 	"encoding/binary"
+	"fmt"
 )
 
 // commandAPDU represents an application data unit sent to a smartcard.
@@ -66,6 +67,10 @@ type responseAPDU struct {
 
 // deserialize deserializes a response APDU.
 func (ra *responseAPDU) deserialize(data []byte) error {
+	if len(data) < 2 {
+		return fmt.Errorf("can not deserialize data: payload too short (%d < 2)", len(data))
+	}
+
 	ra.Data = make([]byte, len(data)-2)
 
 	buf := bytes.NewReader(data)