linux-kernel - Re: [PATCH] CRED: Further fix execve cred_exec

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Message-ID: <alpine.LRH.1.10.0808230844080.24779@tundra.namei.org>
Date:	Sat, 23 Aug 2008 08:44:30 +1000 (EST)
From:	James Morris <jmorris@...ei.org>
To:	David Howells <dhowells@...hat.com>
cc:	a.beregalov@...il.com, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH] CRED: Further fix execve cred_exec_mutex handling [ver
 #2]

On Fri, 22 Aug 2008, David Howells wrote:

> Further fix the way cred_exec_mutex is handled by [compat_]do_execve().  The
> mutex is now only unlocked by the function that locked it, and is no longer
> unlocked by free_bprm() or install_exec_creds().  This means that PTRACE_ATTACH
> may have to wait a little longer before being allowed to proceed.
> 
> This patch cleans up the order in which the mutex is locked and unlocked and
> gets rid of a potential double unlock.
> 
> Signed-off-by: David Howells <dhowells@...hat.com>
> ---

Applied to:
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6#next-creds


-- 
James Morris
<jmorris@...ei.org>
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