From 98af57041d51b34b3f511c76748d77e11ebcffc6 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwe@kingsome.cn>
Date: Wed, 25 Sep 2019 13:48:33 +0800
Subject: [PATCH] =?UTF-8?q?websocketsession=E6=B7=BB=E5=8A=A0=E9=98=B2?=
 =?UTF-8?q?=E5=BE=A1=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 a8/websocketsession.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/a8/websocketsession.cc b/a8/websocketsession.cc
index 5a98afd..14192f1 100644
--- a/a8/websocketsession.cc
+++ b/a8/websocketsession.cc
@@ -191,6 +191,9 @@ namespace a8
 
     void WebSocketSession::DecodeFrame(char* buf, int& offset, unsigned int buflen)
     {
+        if (offset + 2 < buflen) {
+            return;
+        }
         char* real_buf = buf + offset;
         unsigned int ava_len = buflen - offset;
         char header = real_buf[0];