diff --git a/services/native/src/usb_service.cpp b/services/native/src/usb_service.cpp
index 159d0f4482132dfcf2970b6b428db76b16dea5cf..547bc1b37da7476c6ede27ae8e08dba120812468 100644
--- a/services/native/src/usb_service.cpp
+++ b/services/native/src/usb_service.cpp
@@ -2959,6 +2959,7 @@ int32_t UsbService::AddSerialRight(uint32_t tokenId, int32_t portId)
 }
 // LCOV_EXCL_STOP
 
+// LCOV_EXCL_START
 int32_t UsbService::GetDeviceVidPidSerialNumber(int32_t portId, std::string& deviceName, std::string& strDesc)
 {
     USB_HILOGI(MODULE_USB_SERVICE, "%{public}s: Start", __func__);
@@ -2975,6 +2976,7 @@ int32_t UsbService::GetDeviceVidPidSerialNumber(int32_t portId, std::string& dev
     }
     return isMatched;
 }
+// LCOV_EXCL_STOP
 
 // LCOV_EXCL_START
 void UsbService::UpdateDeviceVidPidMap(std::vector<OHOS::HDI::Usb::Serial::V1_0::SerialPort>& serialPortList)
diff --git a/test/fuzztest/usbmgraddserialright_fuzzer/corpus/init b/test/fuzztest/usbmgraddserialright_fuzzer/corpus/init
new file mode 100644
index 0000000000000000000000000000000000000000..bc977bd9738ee9a70b362067f57a9c63d3adb801
--- /dev/null
+++ b/test/fuzztest/usbmgraddserialright_fuzzer/corpus/init
@@ -0,0 +1,14 @@
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FUZZ
\ No newline at end of file
diff --git a/test/fuzztest/usbmgraddserialright_fuzzer/project.xml b/test/fuzztest/usbmgraddserialright_fuzzer/project.xml
new file mode 100644
index 0000000000000000000000000000000000000000..20dc766db73742058c8300227a37ba63703fc683
--- /dev/null
+++ b/test/fuzztest/usbmgraddserialright_fuzzer/project.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2022 Huawei Device Co., Ltd.
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<fuzz_config>
+  <fuzztest>
+    <!-- maximum length of a test input -->
+    <max_len>1000</max_len>
+    <!-- maximum total time in seconds to run the fuzzer -->
+    <max_total_time>120</max_total_time>
+    <!-- memory usage limit in Mb -->
+    <rss_limit_mb>2048</rss_limit_mb>
+  </fuzztest>
+</fuzz_config>
diff --git a/test/fuzztest/usbmgraddserialright_fuzzer/usbmgraddserialright_fuzzer.cpp b/test/fuzztest/usbmgraddserialright_fuzzer/usbmgraddserialright_fuzzer.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b4e40244731d90c5b10b49d351b0dfae3276094c
--- /dev/null
+++ b/test/fuzztest/usbmgraddserialright_fuzzer/usbmgraddserialright_fuzzer.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "usbmgraddserialright_fuzzer.h"
+
+#include "usb_srv_client.h"
+#include "usb_errors.h"
+
+namespace OHOS {
+namespace USB {
+    bool UsbMgrAddSerialRightFuzzTest(const uint8_t* data, size_t size)
+    {
+        auto &usbSrvClient = UsbSrvClient::GetInstance();
+        if (data == nullptr || size < sizeof(int32_t) + sizeof(uint32_t)) {
+            return false;
+        }
+        int32_t ret = usbSrvClient.AddSerialRight(*reinterpret_cast<const uint32_t *>(data),
+            *reinterpret_cast<const int32_t *>(data + sizeof(uint32_t)));
+        if (ret == UEC_OK) {
+            return false;
+        }
+        return true;
+    }
+}
+}
+
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    /* Run your code on data */
+    OHOS::USB::UsbMgrAddSerialRightFuzzTest(data, size);
+    return 0;
+}
+
diff --git a/test/fuzztest/usbmgraddserialright_fuzzer/usbmgraddserialright_fuzzer.h b/test/fuzztest/usbmgraddserialright_fuzzer/usbmgraddserialright_fuzzer.h
new file mode 100644
index 0000000000000000000000000000000000000000..29566224b53ed2f49aa4b17d87800f1f1ab54c83
--- /dev/null
+++ b/test/fuzztest/usbmgraddserialright_fuzzer/usbmgraddserialright_fuzzer.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef USBMGRADDSERIALRIGHT_FUZZER_H
+#define USBMGRADDSERIALRIGHT_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "usbmgraddserialright_fuzzer"
+
+#endif // USBMGRADDSERIALRIGHT_FUZZER_H
diff --git a/test/fuzztest/usbmgrserialsetattribute_fuzzer/usbmgrserialsetattribute_fuzzer.cpp b/test/fuzztest/usbmgrserialsetattribute_fuzzer/usbmgrserialsetattribute_fuzzer.cpp
index 779730d78b6c90eaa2f72a433ab514518fec251a..86408c24f4f639a96b5435cba3ae77be59ca6564 100644
--- a/test/fuzztest/usbmgrserialsetattribute_fuzzer/usbmgrserialsetattribute_fuzzer.cpp
+++ b/test/fuzztest/usbmgrserialsetattribute_fuzzer/usbmgrserialsetattribute_fuzzer.cpp
@@ -23,17 +23,17 @@ constexpr int32_t OK = 0;
 }
 using OHOS::USB::UsbSrvClient;
 namespace OHOS {
+const uint32_t OFFSET = 4;
 namespace SERIAL {
 bool UsbMgrSerialSetAttributeFuzzTest(const uint8_t* data, size_t size)
 {
-    if (data == nullptr || size < sizeof(int32_t)) {
+    if (data == nullptr || size < sizeof(UsbSerialAttr) + OFFSET) {
         return false;
     }
     auto &usbSrvClient = UsbSrvClient::GetInstance();
-    struct UsbSerialAttr info;
     int32_t portId = *reinterpret_cast<const int32_t *>(data);
 
-    if (usbSrvClient.SerialGetAttribute(portId, info) != OK) {
+    if (usbSrvClient.SerialSetAttribute(portId, reinterpret_cast<UsbSerialAttr &>(std::move(data + OFFSET))) != OK) {
         return false;
     }