From mboxrd@z Thu Jan  1 00:00:00 1970
From: Solar Designer <solar-cxoSlKxDwOJWk0Htik3J/w@public.gmane.org>
Subject: Re: [PATCH] exec argument expansion can inappropriately trigger OOM-killer
Date: Tue, 31 Aug 2010 15:53:04 +0400
Message-ID: <20100831115304.GA27486@openwall.com>
References: <20100827220258.GF4703@outflux.net> <20100830005648.431B7400D9@magilla.sf.frob.com> <20100830032331.GA22773@openwall.com> <20100830174920.GA25091@openwall.com> <20100830220847.GA24980@grsecurity.net>
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Cc: Roland McGrath <roland-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Kees Cook <kees.cook-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, oss-security-ZwoEplunGu1jrUoiu81ncdBPR1lH4CV8@public.gmane.org,
	Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
	Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	KOSAKI Motohiro <kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
	Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	pageexec-Y8qEzhMunLyT9ig0jae3mg@public.gmane.org
To: Brad Spengler <spender-JNS0hek0TMl4qEwOxq4T+Q@public.gmane.org>
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Brad, Roland -

Thank you for your comments and your work on this.

On Mon, Aug 30, 2010 at 06:08:47PM -0400, Brad Spengler wrote:
> There shouldn't be any additional risk from adding the extra rescheds, 
> as copy_*_user can already sleep and be raced against via a number of 
> methods.

Agreed.

Alexander