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SubjectRe: [kernel-hardening] Re: [PATCH] proc: restrict access to /proc/interrupts
On Mon, Nov 7, 2011 at 2:29 PM, Vasiliy Kulikov <> wrote:
> On Mon, Nov 07, 2011 at 11:18 -0800, H. Peter Anvin wrote:

> As to procfs, I see no real need of adding mode/group mount option for
> global procfs files (/proc/interrupts, /proc/stat, etc.) - it can be
> done by distro specific init scripts (chown+chmod).  I don't mind
> against such an option for the convenience, though.

While possible, the chmod+chown 'solutions' just aren't as simple as
you pretend. Every time one creates a chroot environment and mounts
/proc it has be manually fixed there as well. Same thing with a
container. Sure if /proc were something that was only ever mounted
one time on a box it wouldn't be so bad, but that's not the case.....
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