diff --git a/Backport-check-value-for-topic.patch b/Backport-check-value-for-topic.patch
new file mode 100644
index 0000000..b5320c5
--- /dev/null
+++ b/Backport-check-value-for-topic.patch
@@ -0,0 +1,50 @@
+From 585ac671ed21faa9d84cbab1609f2557857e5204 Mon Sep 17 00:00:00 2001
+From: zgzxx <zhangguangzhi3@huawei.com>
+Date: Tue, 21 Nov 2023 21:21:26 +0800
+Subject: [PATCH] check value for topic
+
+---
+ lib/secDetector_sdk.cpp | 12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+diff --git a/lib/secDetector_sdk.cpp b/lib/secDetector_sdk.cpp
+index 208f4ac..ee76079 100644
+--- a/lib/secDetector_sdk.cpp
++++ b/lib/secDetector_sdk.cpp
+@@ -18,7 +18,7 @@
+ #include <iostream>
+ #include "../observer_agent/grpc_comm/grpc_api.h"
+ 
+-#define ALLTOPIC 0x008FFFFF
++#define ALLTOPIC 0x00FFFFFF
+ using namespace std;
+ static string server_address("unix:///var/run/secDetector.sock");
+ static PubSubClient g_client(grpc::CreateChannel(server_address, grpc::InsecureChannelCredentials()));
+@@ -32,8 +32,10 @@ extern "C" {
+ 
+ void *secSub(const int topic)
+ {
+-	if (!(topic & ALLTOPIC))
++	if (topic <= 0 || topic > ALLTOPIC) {
++		printf("secSub failed, topic:%d is error\n", topic);
+ 		return NULL;
++	}
+ 
+ 	unique_ptr<ClientReader<Message>> reader = g_client.Subscribe(topic);
+ 
+@@ -47,8 +49,10 @@ void *secSub(const int topic)
+ 
+ void secUnsub(const int topic, void *reader)
+ {
+-        if (!(topic & ALLTOPIC))
+-                return;
++	if (topic <= 0 || topic > ALLTOPIC) {
++		printf("secUnsub failed, topic:%d is error\n", topic);
++		return;
++	}
+ 
+ 	if (!reader)
+                 return;
+-- 
+2.33.0
+
diff --git a/secDetector.spec b/secDetector.spec
index 410b60f..db4e73e 100644
--- a/secDetector.spec
+++ b/secDetector.spec
@@ -5,7 +5,7 @@
 Name         :  secDetector
 Summary      :  OS Security Intrusion Detection System
 Version      :  1.0
-Release      :  3
+Release      :  4
 License      :  GPL-2.0
 Source0      :  %{name}-v%{version}.tar.gz
 BuildRequires:  kernel-devel kernel-headers
@@ -17,6 +17,7 @@ Requires     :  protobuf grpc libuuid libbpf
 
 Patch0001: 0001-fix-report-api-function.patch
 Patch0002: Backport-service-fix-power_of_2-bug.patch
+Patch0003: Backport-check-value-for-topic.patch
 
 %description
 OS Security Intrusion Detection System
@@ -90,6 +91,9 @@ rm -rf %{buildroot}
 %attr(0644,root,root) /usr/include/secDetector/secDetector_topic.h
 
 %changelog
+* Wed Nov 22 2023 zhangguangzhi <zhangguangzhi3@huawei.com> 1.0-4
+- add patch to check value for topic
+
 * Tue Nov 21 2023 chenjingwen6 <lhchenjw@gmail.com> 1.0-3
 - add patch to fix power_of_2 bug