diff --git a/samgr_endpoint/source/default_client_rpc.c b/samgr_endpoint/source/default_client_rpc.c
index a245f2eef2f5295b3112c28f72fc335054523fa6..ce5a2cb824fd080eff4955a004ac33c34c53dfb1 100755
--- a/samgr_endpoint/source/default_client_rpc.c
+++ b/samgr_endpoint/source/default_client_rpc.c
@@ -233,6 +233,7 @@ static int ProxyInvoke(IClientProxy *proxy, int funcId, IpcIo *request, IOwner o
     WriteInt32(&requestWrapper, (int32_t)header->saId);
     if (!IpcIoAppend(&requestWrapper, request)) {
         HILOG_ERROR(HILOG_MODULE_SAMGR, "ipc io append fail\n");
+        FreeBuffer(tmpData2);
         return EC_INVALID;
     }
     int ret = SendRequest(header->target, funcId, &requestWrapper, &reply, flag, (uintptr_t *)&replyBuf);