1. There is nothing inherently wrong in &quot;leaking&quot; a page which used to cache some word-readable file or belonged to a process you&#x27;d be able to <i>ptrace</i> anyway.<p>2. One could imagine this being configurable for embedded or HPC systems which don&#x27;t care about security, though I&#x27;m not aware of people actually doing that.<p>3. The memory could equally well be overwritten with 0xdeadbeef and you have no control over that.<p>4. I once heard that Windows may sometimes fault-in nonzero pages if it runs out of pre-zeroed ones, but I couldn&#x27;t locate this in MS docs so I&#x27;m not quite sure.