As long as rowhammer is still out there, aint none of your memory safe. Fixing rowhammer is the memory safety absolutism I want to hear more about.
My system sometimes detects a few bitflips per day.
Perhaps you should replace your RAM, or it's a sign that you have a massive source of radiation lurking somewhere?
It wouldn't be the first time engineers pushed something close to the unreliability limit and compensated with a mechanism to make it more reliable.