diff --git a/frameworks/native/backup_ext/src/ext_backup_ani.cpp b/frameworks/native/backup_ext/src/ext_backup_ani.cpp
index ad8d0530713de60c5da6a09ccfdb440e8295c4ba..2e25cf167341ec93a2694d2238e5c50b6101d83b 100644
--- a/frameworks/native/backup_ext/src/ext_backup_ani.cpp
+++ b/frameworks/native/backup_ext/src/ext_backup_ani.cpp
@@ -97,6 +97,10 @@ ErrCode ExtBackupAni::CallEtsOnBackup()
 ErrCode ExtBackupAni::CallEtsOnRestore()
 {
     ani_vm *vm = nullptr;
+    if (stsRuntime_.GetAniEnv() == nullptr) {
+        HILOGE("Failed to tsRuntime_.GetAniEnv()");
+        return EINVAL;
+    }
     if (ANI_OK != stsRuntime_.GetAniEnv()->GetVM(&vm)) {
         return EINVAL;
     }
diff --git a/frameworks/native/backup_ext/src/ext_backup_ani_error.cpp b/frameworks/native/backup_ext/src/ext_backup_ani_error.cpp
index bd72c18a916cb9aab3eddfeee313a0403ebb0746..f49f3557ec871ea42b02c99ef315b689caaa5798 100644
--- a/frameworks/native/backup_ext/src/ext_backup_ani_error.cpp
+++ b/frameworks/native/backup_ext/src/ext_backup_ani_error.cpp
@@ -23,6 +23,10 @@ void AniError::ThrowBusinessError(ani_env *env, errorCode errCode, const std::st
     static const char *errorClsName = "L@ohos/base/BusinessError;";
     HILOGD("Begin ThrowBusinessError.");
 
+    if (env == nullptr) {
+        HILOGE("env is nullptr");
+        return;
+    }
     ani_class cls {};
     if (ANI_OK != env->FindClass(errorClsName, &cls)) {
         HILOGE("find class BusinessError %{public}s failed", errorClsName);
diff --git a/interfaces/kits/ani/file_share/src/ani_file_share.cpp b/interfaces/kits/ani/file_share/src/ani_file_share.cpp
index 2a12db9328fe45f5679bde90d03a7f04cc228774..0a8e2b089fcfd0ed9ce7e022fbc24f7ca63b3760 100644
--- a/interfaces/kits/ani/file_share/src/ani_file_share.cpp
+++ b/interfaces/kits/ani/file_share/src/ani_file_share.cpp
@@ -274,7 +274,7 @@ static void GrantUriPermission(ani_env *env, ani_string uri, ani_string bundleNa
         ThrowBusinessError(env, EINVAL, "GrantUriPermission is not System App!");
         return;
     }
-    uriPermInfo.flag = wantConstantFlag;
+    uriPermInfo.flag = static_cast<unsigned int>(wantConstantFlag);
     uriPermInfo.mode = GetModeFromFlag(wantConstantFlag);
     LOGD("GrantUriPermission uri: %{public}s, bundleName: %{public}s, flag: %{public}d, mode: %{public}s",
         uriStr.c_str(), bundleNameStr.c_str(), wantConstantFlag, uriPermInfo.mode.c_str());
diff --git a/interfaces/kits/ani/file_uri/src/ani_file_uri.cpp b/interfaces/kits/ani/file_uri/src/ani_file_uri.cpp
index 8ba4067de8098b260f7970723987439a13936ac4..524c3f256e109987fbb1aed00337bd2b0031c13f 100644
--- a/interfaces/kits/ani/file_uri/src/ani_file_uri.cpp
+++ b/interfaces/kits/ani/file_uri/src/ani_file_uri.cpp
@@ -134,6 +134,8 @@ void FileUriConstructor(ani_env *env, ani_object obj, ani_string stringObj)
     if (env->FindNamespace("L@ohos/file/fileuri/fileUri;", &ns) != ANI_OK) {
         LOGE("Namespace L@ohos/file/fileuri/fileUri not found.");
         ThrowBusinessError(env, EPERM, "Namespace L@ohos/file/fileuri/fileUri not found.");
+        delete holder;
+        holder = nullptr;
         return;
     };
 
@@ -142,18 +144,24 @@ void FileUriConstructor(ani_env *env, ani_object obj, ani_string stringObj)
     if (env->Namespace_FindClass(ns, className, &cls) != ANI_OK) {
         LOGE("Not found class LFileUri in Namespace L@ohos/file/fileuri/fileUri.");
         ThrowBusinessError(env, EPERM, "Class LFileUri not found.");
+        delete holder;
+        holder = nullptr;
         return;
     }
 
     ani_method acquireObj;
     if (ANI_OK != env->Class_FindMethod(cls, "acquireFileUriEntity", "J:V", &acquireObj)) {
         LOGE("Not found method acquireFileUriEntity in class LFileUri.");
+        delete holder;
+        holder = nullptr;
         ThrowBusinessError(env, EPERM, "Method acquireFileUriEntity not found.");
         return;
     }
 
     if (ANI_OK != env->Object_CallMethod_Void(obj, acquireObj, reinterpret_cast<ani_long>(holder))) {
         LOGE("Call method acquireFileUriEntity failed.");
+        delete holder;
+        holder = nullptr;
         ThrowBusinessError(env, EPERM, "Call method acquireFileUriEntity failed.");
         return;
     }