Messages in this thread | | | Date | Mon, 07 Nov 2011 11:50:12 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [kernel-hardening] Re: [PATCH] proc: restrict access to /proc/interrupts |
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On 11/07/2011 11:48 AM, Eric Paris wrote: > On Mon, Nov 7, 2011 at 2:29 PM, Vasiliy Kulikov <segoon@openwall.com> 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.....
Yes, for a filesystem that dynamically creates nodes, a static script just doesn't work well. Control options do, like we have for devpts for example.
-hpa
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