From ccd0cc82a48c833e42095f4880e6c223c208c34d Mon Sep 17 00:00:00 2001
From: zhengchao <zhengchao@iie.ac.cn>
Date: Sat, 8 Dec 2018 17:41:25 +0600
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E4=BB=8Etableinfo=E4=B8=AD?=
 =?UTF-8?q?=E8=AF=BB=E5=8F=96=E6=97=A7=E7=89=88=E6=9C=ACplugin=E6=8F=8F?=
 =?UTF-8?q?=E8=BF=B0=E6=97=B6=E9=80=A0=E6=88=90=E7=9A=84=E5=86=99=E8=B6=8A?=
 =?UTF-8?q?=E7=95=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/entry/Maat_rule.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 3fe7c84..a0e91fb 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -601,7 +601,7 @@ int _read_integer_arrary(char* string, int *array, int size)
 	}
 	return i;
 }
-
+#define COLUMN_PLUGIN_DESCR_JSON	4
 int read_plugin_table_description(const char* line, struct Maat_table_desc* p)
 {
 	int i=0,ret=0;
@@ -610,15 +610,18 @@ int read_plugin_table_description(const char* line, struct Maat_table_desc* p)
 	char* copy_line=NULL, *plug_info=NULL;
 	struct plugin_table_desc* plugin_desc=&(p->plugin);
 	copy_line=_maat_strdup(line);
-	ret=get_column_pos(copy_line, 4, &offset, &len);
+	ret=get_column_pos(copy_line, COLUMN_PLUGIN_DESCR_JSON, &offset, &len);
 	if(i<0)
 	{
 		goto error_out;
 	}
-	copy_line[offset+len+1]='\0';
+	if(offset+len<strlen(copy_line))
+	{
+		copy_line[offset+len+1]='\0';
+	}
 	plug_info=copy_line+offset;
 
-	if(strlen(plug_info)<4)//For old version compatible.
+	if(strlen(plug_info)<COLUMN_PLUGIN_DESCR_JSON)//For old version compatible.
 	{
 		ret=sscanf(plug_info, "%d", &(plugin_desc->valid_flag_column));
 		if(ret==0||ret==EOF)