netdev - Re: [PATCH v2 net] netfilter: x_tables: avoid out-of-bounds reads in xt_request_find

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Message-ID: <20180125113310.zkhizswlqtt2m5yd@salvia>
Date:   Thu, 25 Jan 2018 12:33:10 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Florian Westphal <fw@...len.de>, netdev <netdev@...r.kernel.org>,
        netfilter-devel@...r.kernel.org
Subject: Re: [PATCH v2 net] netfilter: x_tables: avoid out-of-bounds reads in
 xt_request_find_{match|target}

On Wed, Jan 24, 2018 at 05:16:09PM -0800, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> It looks like syzbot found its way into netfilter territory.
> 
> Issue here is that @name comes from user space and might
> not be null terminated.
> 
> Out-of-bound reads happen, KASAN is not happy.
> 
> v2 added similar fix for xt_request_find_target(),
> as Florian advised.

Applied, thanks Eric.