netdev - Re: [PATCH] net: filter: fix upper BPF instruction limit

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

Message-Id: <20140618.170522.253556263376208566.davem@davemloft.net>
Date:	Wed, 18 Jun 2014 17:05:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	keescook@...omium.org
Cc:	linux-kernel@...r.kernel.org, ast@...mgrid.com,
	dborkman@...hat.com, edumazet@...gle.com, chema@...gle.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] net: filter: fix upper BPF instruction limit

From: Kees Cook <keescook@...omium.org>
Date: Wed, 18 Jun 2014 15:34:57 -0700

> The original checks (via sk_chk_filter) for instruction count uses ">",
> not ">=", so changing this in sk_convert_filter has the potential to break
> existing seccomp filters that used exactly BPF_MAXINSNS many instructions.
> 
> Fixes: bd4cf0ed331a ("net: filter: rework/optimize internal BPF interpreter's instruction set")
> Signed-off-by: Kees Cook <keescook@...omium.org>

Applied, thanks.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html