linux-kernel - Re: [PATCH] selinux: conditional expression type validation was off-by-one

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Message-ID: <alpine.LRH.1.10.0808070945400.15561@tundra.namei.org>
Date:	Thu, 7 Aug 2008 09:47:23 +1000 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Vesa-Matti Kari <vmkari@...helsinki.fi>
cc:	sds@...ho.nsa.gov, eparis@...isplace.org,
	linux-kernel@...r.kernel.org, selinux@...ho.nsa.gov
Subject: Re: [PATCH] selinux: conditional expression type validation was
 off-by-one

On Wed, 6 Aug 2008, Vesa-Matti Kari wrote:

> expr_isvalid() in conditional.c was off-by-one and allowed
> invalid expression type COND_LAST. However, it is this header file
> that needs to be fixed. That way the if-statement's disjunction's
> second component reads more naturally, "if expr type is greater than
> the last allowed value" ( rather than using ">=" in conditional.c):
> 
>   if (expr->expr_type <= 0 || expr->expr_type > COND_LAST)
> 
> Signed-off-by: Vesa-Matti Kari <vmkari@...helsinki.fi>

Thanks, nice catch.

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



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