By the way, on 4.19, this is now only readable by root. So, now returns EACCESS when user tries to read it.
$ cat /proc/self/stack cat: /proc/self/stack: Permission denied
f8a00cef17206ecd1b30d3d9f99e10d9fa707aa7 proc: restrict kernel stack dumps to root
By the way, on 4.19, this is now only readable by root. So, now returns EACCESS when user tries to read it.
$ cat /proc/self/stack
cat: /proc/self/stack: Permission denied
f8a00cef17206ec d1b30d3d9f99e10 d9fa707aa7 proc: restrict kernel stack dumps to root