diff --git a/services/implementation/src/dependency/hichain/mine_hichain_connector.cpp b/services/implementation/src/dependency/hichain/mine_hichain_connector.cpp
index 44e54a941f1cb018521bcd7d9f056bc4bab765e0..c5d37fd50aac4b2f6818743904e4690487f839f6 100644
--- a/services/implementation/src/dependency/hichain/mine_hichain_connector.cpp
+++ b/services/implementation/src/dependency/hichain/mine_hichain_connector.cpp
@@ -143,6 +143,7 @@ int32_t MineHiChainConnector::DeleteCredentialAndGroup(void)
         LOGE("failed to delete hichain credential and group with ret:%{public}d.", retValue);
         return ERR_DM_FAILED;
     }
+    g_deviceGroupManager->destroyInfo(&returnInfo);
 #endif
     return DM_OK;
 }
@@ -263,9 +264,11 @@ int MineHiChainConnector::ImportCredential(std::string reqJsonStr, std::string &
     }
     if (CreateGroup(reqJsonStr) != DM_OK) {
         DeleteCredentialAndGroup();
+        g_deviceGroupManager->destroyInfo(&returnInfo);
         LOGE("fail to import hichain credential bacause create group unsuccessfully.");
         return ERR_DM_HICHAIN_GROUP_CREATE_FAILED;
     }
+    g_deviceGroupManager->destroyInfo(&returnInfo);
 #endif
     LOGI("import device credential info successfully.");
     return DM_OK;
diff --git a/services/implementation/src/dependency/softbus/softbus_connector.cpp b/services/implementation/src/dependency/softbus/softbus_connector.cpp
index 8bdbf7e2ef3ca7cc34fb3308348556abc81084a9..acd632078b4fb1fd811c642e0cb20623a4ba9cb8 100644
--- a/services/implementation/src/dependency/softbus/softbus_connector.cpp
+++ b/services/implementation/src/dependency/softbus/softbus_connector.cpp
@@ -639,9 +639,11 @@ std::string SoftbusConnector::GetNetworkIdByDeviceId(const std::string &deviceId
             LOGE("[SOFTBUS]GetNodeKeyInfo failed.");
         }
         if (reinterpret_cast<char *>(mUdid) == deviceId) {
+            FreeNodeInfo(nodeInfo);
             return static_cast<std::string>(nodeBasicInfo->networkId);
         }
     }
+    FreeNodeInfo(nodeInfo);
     return "";
 }
 
@@ -714,10 +716,12 @@ bool SoftbusConnector::CheckIsOnline(const std::string &targetDeviceId)
         std::string udid = reinterpret_cast<char *>(mUdid);
         if (udid == targetDeviceId) {
             LOGI("The device is online.");
+            FreeNodeInfo(nodeInfo);
             return true;
         }
     }
     LOGI("The device is not online.");
+    FreeNodeInfo(nodeInfo);
     return false;
 }
 
@@ -734,6 +738,7 @@ DmDeviceInfo SoftbusConnector::GetDeviceInfoByDeviceId(const std::string &device
     char deviceIdHash[DM_MAX_DEVICE_ID_LEN] = {0};
     if (Crypto::GetUdidHash(deviceId, reinterpret_cast<uint8_t *>(deviceIdHash)) != DM_OK) {
         LOGE("get deviceIdHash by deviceId: %{public}s failed.", GetAnonyString(deviceId).c_str());
+        FreeNodeInfo(nodeInfo);
         return info;
     }
     for (int32_t i = 0; i < deviceCount; ++i) {
@@ -742,6 +747,7 @@ DmDeviceInfo SoftbusConnector::GetDeviceInfoByDeviceId(const std::string &device
         if (GetNodeKeyInfo(DM_PKG_NAME, nodeBasicInfo->networkId, NodeDeviceInfoKey::NODE_KEY_UDID,
             mUdid, sizeof(mUdid)) != DM_OK) {
             LOGE("[SOFTBUS]GetNodeKeyInfo failed.");
+            FreeNodeInfo(nodeInfo);
             return info;
         }
         std::string udid = reinterpret_cast<char *>(mUdid);