linux-kernel - Re: [PATCH] seccomp: cap SECCOMP_RET_ERRNO data to MAX

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Date:	Sat, 7 Feb 2015 01:32:07 +0300
From:	"Dmitry V. Levin" <ldv@...linux.org>
To:	Kees Cook <keescook@...omium.org>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Andy Lutomirski <luto@...capital.net>,
	Will Drewry <wad@...omium.org>
Subject: Re: [PATCH] seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNO

On Fri, Feb 06, 2015 at 01:03:09PM -0800, Kees Cook wrote:
> The value resulting from the SECCOMP_RET_DATA mask could exceed MAX_ERRNO
> when setting errno during a SECCOMP_RET_ERRNO filter action. This makes sure
> we have a reliable value being set, so that an invalid errno will not be
> ignored by userspace.

Acked-by: Dmitry V. Levin <ldv@...linux.org>


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