Bug#669028: please backport new procfs hidepid option into 3.2

[Jonathan Nieder <jrnieder@gmail.com>]

tags 669028 + upstream patch moreinfo
quit

Romain Francoise wrote:

> 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
> backported:
>
>  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.

Neat.  If you get time to test it, I'd be interested to hear the result.

Thanks,
Jonathan