diff --git a/services/native/driver_extension_manager/include/input_emit_event/emit_event_manager.h b/services/native/driver_extension_manager/include/input_emit_event/emit_event_manager.h
index a6d00a4e5001c248d2b83a0c8e26cb32f50e4e69..14758b740cd9f6ba5f079c19eefa1d60a08ce2ce 100644
--- a/services/native/driver_extension_manager/include/input_emit_event/emit_event_manager.h
+++ b/services/native/driver_extension_manager/include/input_emit_event/emit_event_manager.h
@@ -34,8 +34,6 @@ public:
 
 private:
     EmitEventManager() = default;
-    bool HasPermission(void);
-    bool CheckHapPermission(uint32_t tokenId);
     std::map<int32_t, std::unique_ptr<VirtualDeviceInject>> virtualDeviceMap_;
     int32_t lastDeviceId_ = 0;
 };
diff --git a/services/native/driver_extension_manager/src/driver_permission/BUILD.gn b/services/native/driver_extension_manager/src/driver_permission/BUILD.gn
index 34914c5e15b88d00f3d35ed8f4801f6725ad40e3..cc89358c160d85fffb8a1791f8a41d0bfe7c57c5 100644
--- a/services/native/driver_extension_manager/src/driver_permission/BUILD.gn
+++ b/services/native/driver_extension_manager/src/driver_permission/BUILD.gn
@@ -30,7 +30,6 @@ ohos_shared_library("driver_permission_manager") {
   external_deps = [
     "ability_base:want",
     "access_token:libaccesstoken_sdk",
-    "access_token:libprivacy_sdk",
     "bundle_framework:appexecfwk_base",
     "bundle_framework:appexecfwk_core",
     "c_utils:utilsbase",
diff --git a/services/native/driver_extension_manager/src/driver_permission/ext_permission_manager.cpp b/services/native/driver_extension_manager/src/driver_permission/ext_permission_manager.cpp
index 539e48a6cf374c2fdb5489bf0a930d7cb88aa04f..20815cad270f21e68d5481489d56fede91a18fe9 100644
--- a/services/native/driver_extension_manager/src/driver_permission/ext_permission_manager.cpp
+++ b/services/native/driver_extension_manager/src/driver_permission/ext_permission_manager.cpp
@@ -19,7 +19,6 @@
 #include "ipc_skeleton.h"
 #include "iservice_registry.h"
 #include "accesstoken_kit.h"
-#include "privacy_kit.h"
 #include "system_ability_definition.h"
 
 namespace OHOS {
@@ -79,10 +78,6 @@ bool ExtPermissionManager::HasPermission(std::string permissionName)
     
     AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
     int result = AccessTokenKit::VerifyAccessToken(callerToken, permissionName);
-    if (PrivacyKit::AddPermissionUsedRecord(callerToken, permissionName, static_cast<int32_t>(1 + result),
-        static_cast<int32_t>(-result)) != 0) {
-        EDM_LOGE(MODULE_DEV_MGR, "AddPermissionUsedRecord failed.");
-    }
     if (result != PERMISSION_GRANTED) {
         EDM_LOGE(MODULE_DEV_MGR, "usb_ddk_api:  No permission.");
         return false;
diff --git a/services/native/driver_extension_manager/src/input_emit_event/emit_event_manager.cpp b/services/native/driver_extension_manager/src/input_emit_event/emit_event_manager.cpp
index 0eeffcb4b1842135a1d30257dc8d4e6307e2f6a4..9622816edd1b7f14b96f971b299e0d40dadae3f9 100644
--- a/services/native/driver_extension_manager/src/input_emit_event/emit_event_manager.cpp
+++ b/services/native/driver_extension_manager/src/input_emit_event/emit_event_manager.cpp
@@ -29,10 +29,6 @@ IMPLEMENT_SINGLE_INSTANCE(EmitEventManager);
 const uint16_t MAX_VIRTUAL_DEVICE_NUM = 200;
 int32_t EmitEventManager::CreateDevice(Hid_Device *hidDevice, Hid_EventProperties *hidEventProperties)
 {
-    if (!HasPermission()) {
-        EDM_LOGE(MODULE_HID_DDK, "permission denied");
-        return HID_DDK_NO_PERM;
-    }
     // check device number
     if (virtualDeviceMap_.size() >= MAX_VIRTUAL_DEVICE_NUM) {
         EDM_LOGE(MODULE_HID_DDK, "device num exceeds maximum %{public}d", MAX_VIRTUAL_DEVICE_NUM);
@@ -82,33 +78,6 @@ int32_t EmitEventManager::DestroyDevice(int32_t deviceId)
     return HID_DDK_SUCCESS;
 }
 
-bool EmitEventManager::CheckHapPermission(uint32_t tokenId)
-{
-    OHOS::Security::AccessToken::HapTokenInfo findInfo;
-    if (OHOS::Security::AccessToken::AccessTokenKit::GetHapTokenInfo(tokenId, findInfo) != 0) {
-        EDM_LOGE(MODULE_USB_DDK, "GetHapTokenInfo failed");
-        return false;
-    }
-    if ((findInfo.apl == ATokenAplEnum::APL_SYSTEM_CORE) || (findInfo.apl == ATokenAplEnum::APL_SYSTEM_BASIC)) {
-        return true;
-    }
-    return false;
-}
-
-bool EmitEventManager::HasPermission(void)
-{
-    auto tokenId = IPCSkeleton::GetCallingTokenID();
-    auto tokenType = OHOS::Security::AccessToken::AccessTokenKit::GetTokenTypeFlag(tokenId);
-    if (tokenType == OHOS::Security::AccessToken::TOKEN_HAP) {
-        return CheckHapPermission(tokenId);
-    } else if (tokenType == OHOS::Security::AccessToken::TOKEN_NATIVE) {
-        return true;
-    } else if (tokenType == OHOS::Security::AccessToken::TOKEN_SHELL) {
-        return true;
-    }
-    return false;
-}
-
 int32_t EmitEventManager::GetCurDeviceId(void)
 {
     if (virtualDeviceMap_.count(lastDeviceId_) == 0) {
diff --git a/services/zidl/src/driver_ext_mgr_stub.cpp b/services/zidl/src/driver_ext_mgr_stub.cpp
index 58515dc97f2bfbddee03c7e3bf6d3519d34f370d..7b613b48230a2b3f13783d974ab163089be38fdb 100644
--- a/services/zidl/src/driver_ext_mgr_stub.cpp
+++ b/services/zidl/src/driver_ext_mgr_stub.cpp
@@ -145,6 +145,7 @@ int32_t DriverExtMgrStub::OnCreateDevice(MessageParcel &data, MessageParcel &rep
     auto device = &(hidDevice.value());
     auto eventProperties = &(hidEventProperties.value());
     int32_t ret = CreateDevice(device, eventProperties);
+    delete[] device->deviceName;
     delete device->properties;
     delete eventProperties->hidEventTypes.hidEventType;
     delete eventProperties->hidKeys.hidKeyCode;
diff --git a/services/zidl/src/driver_ext_mgr_types.cpp b/services/zidl/src/driver_ext_mgr_types.cpp
index 8e9136fa7514a23f33f5ba8575260a6888d825ef..14eee09b55077acc1f6441068906832373a0c00a 100644
--- a/services/zidl/src/driver_ext_mgr_types.cpp
+++ b/services/zidl/src/driver_ext_mgr_types.cpp
@@ -279,7 +279,7 @@ std::optional<Hid_Device> HidDeviceUnMarshalling(MessageParcel &parcel)
         EDM_LOGE(MODULE_DEV_MGR, "failed to read deviceName");
         return std::nullopt;
     }
-    hidDevice.deviceName = (char *)str->c_str();
+    hidDevice.deviceName = str->c_str();
 
     if (!parcel.ReadUint16(hidDevice.vendorId)) {
         EDM_LOGE(MODULE_DEV_MGR, "failed to read vendorId");