From ffebe864a42e8f0787ca9289d527f03bf58c204a Mon Sep 17 00:00:00 2001
From: dki1110 <tomohiro.ikeda.1110@gmail.com>
Date: Sun, 17 May 2020 14:36:07 +0900
Subject: [PATCH] Avoid slice bounds out of range

---
 adv.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/adv.go b/adv.go
index 787ff33..d62eb73 100644
--- a/adv.go
+++ b/adv.go
@@ -96,6 +96,9 @@ func (a *Advertisement) unmarshall(b []byte) error {
 		if len(b) < int(1+l) {
 			return errors.New("invalid advertise data")
 		}
+		if l <= 2 {
+			return errors.New("invalid advertise data (l<=2)")
+		}
 		d := b[2 : 1+l]
 		switch t {
 		case typeFlags: