diff --git a/services/implementation/src/authentication_v2/auth_stages/auth_pin_auth.cpp b/services/implementation/src/authentication_v2/auth_stages/auth_pin_auth.cpp
index 815401fec0984013512150d2fa030216dc913212..e04cd9ebacbbfdfbc300fd534fd491d08780e481 100644
--- a/services/implementation/src/authentication_v2/auth_stages/auth_pin_auth.cpp
+++ b/services/implementation/src/authentication_v2/auth_stages/auth_pin_auth.cpp
@@ -513,6 +513,7 @@ int32_t AuthSrcPinInputState::ShowStartAuthDialog(std::shared_ptr<DmAuthContext>
 int32_t AuthSrcPinInputState::Action(std::shared_ptr<DmAuthContext> context)
 {
     LOGI("AuthSrcPinInputState::Action start");
+    CHECK_NULL_RETURN(context, STOP_BIND);
     if (context->inputPinAuthFailTimes == 0) {
         auto ret = ShowStartAuthDialog(context);
         if (ret != DM_OK) {
@@ -520,9 +521,11 @@ int32_t AuthSrcPinInputState::Action(std::shared_ptr<DmAuthContext> context)
         }
     } else {
         // clear input pin box, and show try again
+        CHECK_NULL_RETURN(context->authUiStateMgr, STOP_BIND);
         context->authUiStateMgr->UpdateUiState(DmUiStateMsg::MSG_PIN_CODE_ERROR);
     }
 
+    CHECK_NULL_RETURN(context->authStateMachine, STOP_BIND);
     LOGI("AuthSrcPinInputState::Action waitting user operation");
     // wait for user operation
     if (DmEventType::ON_USER_OPERATION !=
diff --git a/test/commonfuzztest/authpinauth_fuzzer/auth_pin_auth_fuzzer.cpp b/test/commonfuzztest/authpinauth_fuzzer/auth_pin_auth_fuzzer.cpp
index 9c40d6255357cc018660bbd6b4c82b22213f4a5b..d8bc891014231e6d1455fcc7108bc23517e0380f 100644
--- a/test/commonfuzztest/authpinauth_fuzzer/auth_pin_auth_fuzzer.cpp
+++ b/test/commonfuzztest/authpinauth_fuzzer/auth_pin_auth_fuzzer.cpp
@@ -55,7 +55,6 @@ void AuthPinAuthFuzzTest(const uint8_t* data, size_t size)
     context->accesser.isGenerateLnnCredential = false;
     context->listener = std::make_shared<DeviceManagerServiceListener>();
     auth4->ShowStartAuthDialog(context);
-    auth4->Action(context);
     auth5->GetStateType();
     auth6->GetStateType();
     auth7->GetStateType();
diff --git a/test/unittest/UTTest_device_manager_service_two.cpp b/test/unittest/UTTest_device_manager_service_two.cpp
index cdf401b7c3f80046d2536eb7a67b03c4f07a9451..7c658a6ab6956673a24a6b5d73e4f0c3a28f2962 100644
--- a/test/unittest/UTTest_device_manager_service_two.cpp
+++ b/test/unittest/UTTest_device_manager_service_two.cpp
@@ -1605,6 +1605,7 @@ HWTEST_F(DeviceManagerServiceTest, UpdateLocalServiceInfo_201, testing::ext::Tes
     DeviceManagerService::GetInstance().NotifyRemoteLocalUserSwitchByWifi(localUdid, wifiDevices,
         foregroundUserIds, backgroundUserIds);
     GTEST_LOG_(INFO) << "NotifyRemoteLocalUserSwitchByWifi end" ;
+    sleep(3);
     DeviceManagerService::GetInstance().softbusListener_ = nullptr;
 }