Bug#669028: please backport new procfs hidepid option into 3.2
The procfs hidepid option added in Linux 3.3 can be useful as an
additional step to secure multi-user systems and I would like to have it
in wheezy's kernel.
At first glance, the following commits from mainline would need to be
97412950b1 ("procfs: parse mount options")
0499680a42 ("procfs: add hidepid= and gid= mount options")
a2ef990ab5 ("proc: fix null pointer deref in proc_pid_permission()")
99663be772 ("proc: fix mount -t proc -o AAA")
All these apply cleanly (in order) on top of v3.2.15, although I did not
check that the result actually works.
Romain Francoise <email@example.com>