diff --git a/interfaces/kits/native/recent/recent_n_exporter.cpp b/interfaces/kits/native/recent/recent_n_exporter.cpp
index af0ca370fa5a83924f98ad539653b927e2b1408e..71fc919b37bc0de727ca68a5c935f352bec79aa0 100644
--- a/interfaces/kits/native/recent/recent_n_exporter.cpp
+++ b/interfaces/kits/native/recent/recent_n_exporter.cpp
@@ -172,6 +172,7 @@ static void Deleter(struct NameListArg *arg)
         (arg->namelist)[i] = nullptr;
     }
     free(arg->namelist);
+    arg->namelist = nullptr;
     delete arg;
     arg = nullptr;
 }
diff --git a/utils/file_util.h b/utils/file_util.h
index 206355f821e8be3e8dd7fd42b9ec6440abb15c0b..77342dfa19512cda214c444b066e3b8a6ef81408 100644
--- a/utils/file_util.h
+++ b/utils/file_util.h
@@ -61,6 +61,7 @@ static void Deleter(struct NameListArg *arg)
         (arg->namelist)[i] = nullptr;
     }
     free(arg->namelist);
+    arg->namelist = nullptr;
     delete arg;
     arg = nullptr;
 }