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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20150206223207.GA3829@altlinux.org>
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>


-- 
ldv
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/