linux-kernel - Re: [PATCH] exec argument expansion can inappropriately trigger OOM-killer

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Message-ID: <20100831115304.GA27486@openwall.com>
Date:	Tue, 31 Aug 2010 15:53:04 +0400
From:	Solar Designer <solar@...nwall.com>
To:	Brad Spengler <spender@...ecurity.net>
Cc:	Roland McGrath <roland@...hat.com>,
	Kees Cook <kees.cook@...onical.com>,
	linux-kernel@...r.kernel.org, oss-security@...ts.openwall.com,
	Al Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Neil Horman <nhorman@...driver.com>,
	linux-fsdevel@...r.kernel.org, pageexec@...email.hu
Subject: Re: [PATCH] exec argument expansion can inappropriately trigger OOM-killer

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
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