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Date: Fri, 17 Jun 2011 14:01:54 +0400
From: Vasiliy Kulikov <segoon@...nwall.com>
To: kernel-hardening@...ts.openwall.com
Subject: Re: How to temporary change 'current' (task)
On Fri, Jun 17, 2011 at 13:25 +0400, Vasiliy Kulikov wrote:
> On Fri, Jun 17, 2011 at 12:59 +0400, Solar Designer wrote:
> > On Fri, Jun 17, 2011 at 12:36:51PM +0400, Vasiliy Kulikov wrote:
> > > I wonder whether there is a simple way to temporary switch 'current' to
> > > another task and then switch it back with minimum side effects?
BTW, as HARDEN_PROC restricts not only procfs, but also netlink sockets,
it should be moved into sysctls. I think about (according to already
implemented dmesg_restricted and kptr_restricted):
kernel.proc_restricted
kernel.proc_restricted_gid
And, as net restriction is no more associated with proc restrictions:
net.core.conninfo_restricted
net.core.conninfo_restricted_gid
Thanks,
--
Vasiliy Kulikov
http://www.openwall.com - bringing security into open computing environments
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