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

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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.
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