src: handle null backing store in ArrayBufferViewContents::Read

Author: mertcanaltin

src/util-inl.h

@@ -591,10 +591,9 @@ void ArrayBufferViewContents<T, S>::Read(v8::Local<v8::ArrayBufferView> abv) {
   static_assert(sizeof(T) == 1, "Only supports one-byte data at the moment");
   length_ = abv->ByteLength();
   if (length_ > sizeof(stack_storage_) || abv->HasBuffer()) {
-    auto buf = abv->Buffer();
-    data_ = buf->Data() != nullptr
-                ? static_cast<T*>(buf->Data()) + abv->ByteOffset()
-                : stack_storage_;
+    auto buf_data = abv->Buffer()->Data();
+    data_ = buf_data != nullptr ? static_cast<T*>(buf_data) + abv->ByteOffset()
+                                : stack_storage_;
   } else {
     abv->CopyContents(stack_storage_, sizeof(stack_storage_));
     data_ = stack_storage_;