Looks like a neighbors Samoyed? That needs a bath and grooming. Well except for the tail.
Another possibility is wolf hybrid pet or stray. I knew a guy once who had a wolf hybrid that looked exactly like those photos. That was one big dog! Size might be an indicator, I don't know how big samoyed's get I was thinking they were smaller but I don't remember. Wolves do come in white and almost white. I've also seen black bears that were quite red (cinnamon bear).