diff --git a/distributedinput.gni b/distributedinput.gni
index 3a1a679fe3666073e2ca864724df4f7f5d5d0c1f..1f7097ebda8b58ef99d5b74c4a4bf223685c7ca0 100644
--- a/distributedinput.gni
+++ b/distributedinput.gni
@@ -16,8 +16,6 @@ distributedinput_path = "//foundation/distributedhardware/distributed_input"
 distributedhardwarefwk_path =
     "//foundation/distributedhardware/distributed_hardware_fwk"
 
-window_manager_path = "//foundation/window/window_manager"
-
 common_path = "${distributedinput_path}/common"
 
 utils_path = "${distributedinput_path}/utils"
diff --git a/interfaces/ipc/src/start_stop_result_call_back_stub.cpp b/interfaces/ipc/src/start_stop_result_call_back_stub.cpp
index f94640aef093a4791a2eb82b6fbc94043eae6db6..5c41b0930b5eca1b65c4fb1f322f3341f0022409 100644
--- a/interfaces/ipc/src/start_stop_result_call_back_stub.cpp
+++ b/interfaces/ipc/src/start_stop_result_call_back_stub.cpp
@@ -40,8 +40,11 @@ int32_t StartStopResultCallbackStub::OnRemoteRequest(
         case IStartStopResultCallback::Message::RESULT_START: {
             std::string srcId = data.ReadString();
             std::string sinkId = data.ReadString();
-
             uint32_t size = data.ReadUint32();
+            if (size > IPC_VECTOR_MAX_SIZE) {
+                DHLOGI("OnRemoteRequest start data size too large.");
+                return ERR_DH_INPUT_IPC_READ_VALID_FAIL;
+            }
             std::vector<std::string> dhIds;
             for (uint32_t i = 0; i < size; i++) {
                 std::string dhId = data.ReadString();
@@ -55,6 +58,10 @@ int32_t StartStopResultCallbackStub::OnRemoteRequest(
             std::string srcId = data.ReadString();
             std::string sinkId = data.ReadString();
             uint32_t size = data.ReadUint32();
+            if (size > IPC_VECTOR_MAX_SIZE) {
+                DHLOGI("OnRemoteRequest stop data size too large.");
+                return ERR_DH_INPUT_IPC_READ_VALID_FAIL;
+            }
             std::vector<std::string> dhIds;
             for (uint32_t i = 0; i < size; i++) {
                 std::string dhId = data.ReadString();