I just talked to amluto who explained that the race can only be triggered by a write that uses the "force" flag to get_user_pages() (a kernel function). /proc/p

I just talked to amluto who explained that the race can only be triggered by a write that uses the "force" flag to get_user_pages() (a kernel function). /proc/pid/mem and ptrace() do this but regular writes and process_vm_writev() do not.