From: David Miller <davem@davemloft.net>
To: edumazet@google.com
Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com, dsa@cumulusnetworks.com
Subject: Re: [PATCH net] net: validate attribute sizes in neigh_dump_table()
Date: Thu, 12 Apr 2018 21:50:16 -0400 (EDT) [thread overview]
Message-ID: <20180412.215016.1190154950435089625.davem@davemloft.net> (raw)
In-Reply-To: <20180411214600.203361-1-edumazet@google.com>
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 11 Apr 2018 14:46:00 -0700
> Since neigh_dump_table() calls nlmsg_parse() without giving policy
> constraints, attributes can have arbirary size that we must validate
>
> Reported by syzbot/KMSAN :
...
> Fixes: 21fdd092acc7 ("net: Add support for filtering neigh dump by master device")
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Cc: David Ahern <dsa@cumulusnetworks.com>
> Reported-by: syzbot <syzkaller@googlegroups.com>
Applied and queued up for -stable.
prev parent reply other threads:[~2018-04-13 1:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-11 21:46 [PATCH net] net: validate attribute sizes in neigh_dump_table() Eric Dumazet
2018-04-11 21:48 ` David Ahern
2018-04-13 1:50 ` David Miller [this message]
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