diff --git a/test/unittest/BUILD.gn b/test/unittest/BUILD.gn
index 3c33ab9312fa71f43e35cfeb429eab1d56c6c3f2..5afb1264f88268fc9522a94124fdaace980c36bc 100644
--- a/test/unittest/BUILD.gn
+++ b/test/unittest/BUILD.gn
@@ -17,6 +17,7 @@ import("//foundation/filemanagement/user_file_service/filemanagement_aafwk.gni")
 ohos_unittest("medialibrary_file_access_test") {
   branch_protector_ret = "pac_ret"
   sanitize = {
+    integer_overflow = true
     cfi = true
     cfi_cross_dso = true
     debug = false
@@ -65,6 +66,7 @@ ohos_unittest("medialibrary_file_access_test") {
 ohos_unittest("external_file_access_test") {
   branch_protector_ret = "pac_ret"
   sanitize = {
+    integer_overflow = true
     cfi = true
     cfi_cross_dso = true
     debug = false
@@ -116,6 +118,7 @@ ohos_unittest("external_file_access_test") {
 ohos_unittest("abnormal_file_access_test") {
   branch_protector_ret = "pac_ret"
   sanitize = {
+    integer_overflow = true
     cfi = true
     cfi_cross_dso = true
     debug = false
@@ -159,6 +162,13 @@ ohos_unittest("abnormal_file_access_test") {
 }
 
 ohos_unittest("file_access_ext_stub_impl_test") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    integer_overflow = true
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   module_out_path = "user_file_service/tests"
 
   include_dirs = [
@@ -196,6 +206,13 @@ ohos_unittest("file_access_ext_stub_impl_test") {
 }
 
 ohos_unittest("file_access_service_proxy_test") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    integer_overflow = true
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   module_out_path = "user_file_service/tests"
 
   include_dirs = [
@@ -240,6 +257,13 @@ ohos_unittest("file_access_service_proxy_test") {
 }
 
 ohos_unittest("js_file_access_ext_ability_test") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    integer_overflow = true
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   module_out_path = "user_file_service/tests"
 
   include_dirs = [