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Message-ID: <20110813192530.GB13051@openwall.com>
Date: Sat, 13 Aug 2011 23:25:30 +0400
From: Solar Designer <solar@...nwall.com>
To: kernel-hardening@...ts.openwall.com
Subject: Re: 32/64 bitness restriction for pid namespace
On Sat, Aug 13, 2011 at 09:31:18PM +0400, Vasiliy Kulikov wrote:
> Also, to keep the code clean and small, I think sysctl interface should
> be dropped. The only use case is locking a live container, which is
> probably a very limited thing. Also it will fail if any unprivileged task
> already runs a binary of other bitness anyway.
>
> Do you agree?
Yes.
BTW, another user of this feature may be vsftpd - but I guess it will
simply be enhanced to use our prctl().
Alexander
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