diff --git a/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp b/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp
index 43bae0a641fe559f119748a490977681cc3a716a..0b9df546266b4609f93d6f3c2a240f3ce1143eb2 100644
--- a/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp
+++ b/interfaces/kits/js/src/mod_fileio/class_dir/dir_n_exporter.cpp
@@ -168,6 +168,9 @@ napi_value DirNExporter::Read(napi_env env, napi_callback_info info)
     auto arg = make_shared<DirReadArgs>(NVal(env, funcArg.GetThisVar()));
     auto cbExec = [arg, dir, dirEntity](napi_env env) -> UniError {
         struct dirent tmpDirent;
+        if (memset_s(&tmpDirent, sizeof(struct dirent), 0, sizeof(struct dirent)) != EOK) {
+            return UniError(errno);
+        }
         lock_guard(dirEntity->lock_);
         errno = 0;
         dirent *res = nullptr;
@@ -216,26 +219,29 @@ napi_value DirNExporter::ReadSync(napi_env env, napi_callback_info info)
     }
 
     struct dirent tmpDirent;
-    {
-        lock_guard(dirEntity->lock_);
-        errno = 0;
-        dirent *res = nullptr;
-        do {
-            res = readdir(dirEntity->dir_.get());
-            if (res == nullptr && errno) {
-                UniError(errno).ThrowErr(env);
-                return nullptr;
-            } else if (res == nullptr) {
-                return NVal::CreateUndefined(env).val_;
-            } else if (string(res->d_name) == "." || string(res->d_name) == "..") {
-                continue;
-            } else {
-                tmpDirent = *res;
-                break;
-            }
-        } while (true);
+    if (memset_s(&tmpDirent, sizeof(struct dirent), 0, sizeof(struct dirent)) != EOK) {
+        UniError(EINVAL).ThrowErr(env, "Get dirent memset fail");
+        return nullptr;
     }
 
+    lock_guard(dirEntity->lock_);
+    errno = 0;
+    struct dirent *res = nullptr;
+    do {
+        res = readdir(dirEntity->dir_.get());
+        if (res == nullptr && errno) {
+            UniError(errno).ThrowErr(env);
+            return nullptr;
+        } else if (res == nullptr) {
+            return NVal::CreateUndefined(env).val_;
+        } else if (string(res->d_name) == "." || string(res->d_name) == "..") {
+            continue;
+        } else {
+            tmpDirent = *res;
+            break;
+        }
+    } while (true);
+
     napi_value objDirent = NClass::InstantiateClass(env, DirentNExporter::className_, {});
     if (!objDirent) {
         return nullptr;