diff --git a/interfaces/ipc/src/distributed_input_client.cpp b/interfaces/ipc/src/distributed_input_client.cpp
index b0cea8fda5e5546d84051ad8feb14e5dfc67b6e3..7695489f5bd1e432bb7be10ef740dd2b370e65d1 100644
--- a/interfaces/ipc/src/distributed_input_client.cpp
+++ b/interfaces/ipc/src/distributed_input_client.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2025 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
@@ -329,7 +329,7 @@ int32_t DistributedInputClient::RegisterDistributedHardware(const std::string &d
     const std::string &parameters, const std::shared_ptr<RegisterCallback> &callback)
 {
     DHLOGI("DinputRegister called, deviceId: %{public}s,  dhId: %{public}s,  parameters: %{public}s.",
-        GetAnonyString(devId).c_str(), GetAnonyString(dhId).c_str(), SetAnonyId(parameters).c_str());
+        GetAnonyString(devId).c_str(), GetAnonyString(dhId).c_str(), parameters.c_str());
     if (!DInputSAManager::GetInstance().GetDInputSourceProxy()) {
         DHLOGE("DinputRegister client fail.");
         return ERR_DH_INPUT_CLIENT_GET_SOURCE_PROXY_FAIL;
diff --git a/test/fuzztest/distributedinputsinktransport_fuzzer/distributed_input_sink_transport_fuzzer.cpp b/test/fuzztest/distributedinputsinktransport_fuzzer/distributed_input_sink_transport_fuzzer.cpp
index 80e5f06fe2ce4270183e26c912c1e0de4b17f388..6be73e00d6b5ae100b5eb5758d76dd255fbc3b32 100644
--- a/test/fuzztest/distributedinputsinktransport_fuzzer/distributed_input_sink_transport_fuzzer.cpp
+++ b/test/fuzztest/distributedinputsinktransport_fuzzer/distributed_input_sink_transport_fuzzer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2025 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
@@ -33,7 +33,10 @@ void RespPrepareRemoteInputFuzzTest(const uint8_t *data, size_t size)
     }
 
     int32_t sessionId = *(reinterpret_cast<const int32_t*>(data));
-    std::string smsg(reinterpret_cast<const char*>(data), size);
+    nlohmann::json jsonStr;
+    jsonStr["device_id"] = "123456";
+    jsonStr["dh_id"] = "dinput_1";
+    std::string smsg = jsonStr.dump();
 
     DistributedInput::DistributedInputSinkTransport::GetInstance().RespPrepareRemoteInput(sessionId, smsg);
     DistributedInput::DistributedInputSinkTransport::GetInstance().RespUnprepareRemoteInput(sessionId, smsg);
@@ -46,7 +49,10 @@ void RespStartRemoteInputFuzzTest(const uint8_t *data, size_t size)
     }
 
     int32_t sessionId = *(reinterpret_cast<const int32_t*>(data));
-    std::string smsg(reinterpret_cast<const char*>(data), size);
+    nlohmann::json jsonStr;
+    jsonStr["device_id"] = "123456";
+    jsonStr["dh_id"] = "dinput_1";
+    std::string smsg = jsonStr.dump();
 
     DistributedInput::DistributedInputSinkTransport::GetInstance().RespStartRemoteInput(sessionId, smsg);
     DistributedInput::DistributedInputSinkTransport::GetInstance().RespStopRemoteInput(sessionId, smsg);
diff --git a/test/fuzztest/distributedinputtransportbase_fuzzer/distributed_input_transport_base_fuzzer.cpp b/test/fuzztest/distributedinputtransportbase_fuzzer/distributed_input_transport_base_fuzzer.cpp
index a8dcdb69d998ad14d5bdfc9650b57cec5f8bee48..89fe7644624c8c9976838c495e1e1ef6db48384e 100644
--- a/test/fuzztest/distributedinputtransportbase_fuzzer/distributed_input_transport_base_fuzzer.cpp
+++ b/test/fuzztest/distributedinputtransportbase_fuzzer/distributed_input_transport_base_fuzzer.cpp
@@ -111,6 +111,26 @@ void InitFuzzTest(const uint8_t *data, size_t size)
     (void)size;
     DistributedInput::DistributedInputTransportBase::GetInstance().Init();
 }
+
+void ReleaseFuzzTest(const uint8_t *data, size_t size)
+{
+    (void)data;
+    (void)size;
+    DistributedInput::DistributedInputTransportBase::GetInstance().Release();
+}
+
+void CreateClientSocketFuzzTest(const uint8_t *data, size_t size)
+{
+    if ((data == nullptr) || (size == 0)) {
+        return;
+    }
+    FuzzedDataProvider fdp(data, size);
+    std::string remoteDevId = fdp.ConsumeRandomLengthString();
+    DistributedInput::DistributedInputTransportBase::GetInstance().CreateClientSocket(remoteDevId);
+    if (DistributedInput::DistributedInputTransportBase::GetInstance().sessionId_ > 0) {
+        Shutdown(DistributedInput::DistributedInputTransportBase::GetInstance().sessionId_);
+    }
+}
 } // namespace DistributedHardware
 } // namespace OHOS
 
@@ -125,5 +145,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
     OHOS::DistributedHardware::OnSessionClosedFuzzTest(data, size);
     OHOS::DistributedHardware::EraseSessionIdFuzzTest(data, size);
     OHOS::DistributedHardware::InitFuzzTest(data, size);
+    OHOS::DistributedHardware::ReleaseFuzzTest(data, size);
+    OHOS::DistributedHardware::CreateClientSocketFuzzTest(data, size);
     return 0;
 }
\ No newline at end of file