From b82c1b6c0a24bf1a3f6b8c9136b8f298175f6c7c Mon Sep 17 00:00:00 2001
From: yangwei <yangwei@iie.ac.cn>
Date: Mon, 6 May 2024 14:44:11 +0800
Subject: 🐞 fix(BtoL): check input buffer
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---
 src/SSL_Proc.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/SSL_Proc.c')

diff --git a/src/SSL_Proc.c b/src/SSL_Proc.c
index 4389c24..4f8356f 100644
--- a/src/SSL_Proc.c
+++ b/src/SSL_Proc.c
@@ -166,6 +166,7 @@ struct ssl_serial_string g_astCipherSuit[] =
 
 int BtoL4BytesNum(const char *pcData)
 {
+	if(pcData==NULL) return 0;
     int uiLength = 0;
     uiLength = pcData[0];
     uiLength = (uiLength << 8) + (unsigned char)pcData[1];
@@ -176,6 +177,7 @@ int BtoL4BytesNum(const char *pcData)
 
 int BtoL3BytesNum(const char *pcData)
 {
+	if(pcData==NULL) return 0;
     int uiLength = 0;
     uiLength = pcData[0];
     uiLength = (uiLength << 8) + (unsigned char)pcData[1];
@@ -186,6 +188,7 @@ int BtoL3BytesNum(const char *pcData)
 
 int BtoL2BytesNum(const char *pcData)
 {
+	if(pcData==NULL) return 0;
     int uiLength = 0;
     uiLength = pcData[0];
     uiLength = (uiLength << 8) + (unsigned char)pcData[1];
@@ -195,6 +198,7 @@ int BtoL2BytesNum(const char *pcData)
 
 int BtoL1BytesNum(const char *pcData)
 {
+	if(pcData==NULL) return 0;
     int uiLength = 0;
     uiLength = pcData[0];
 
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