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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Paolo Abeni <pabeni@redhat.com>, netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>,
	David Ahern <dsahern@gmail.com>,
	syzbot <syzbot+91e6f9932ff122fa4410@syzkaller.appspotmail.com>,
	syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH net v2] ipv6: the entire IPv6 header chain must fit the first fragment
Date: Fri, 23 Mar 2018 07:04:47 -0700	[thread overview]
Message-ID: <0c9d0c7e-5cea-5ef4-6cbe-9c87e667123d@gmail.com> (raw)
In-Reply-To: <43638c155545c57a4b332c64771a1e9b0238148c.1521812678.git.pabeni@redhat.com>



On 03/23/2018 06:47 AM, Paolo Abeni wrote:
> While building ipv6 datagram we currently allow arbitrary large
> extheaders, even beyond pmtu size. The syzbot has found a way
> to exploit the above to trigger the following splat:
> 
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Reported-by: syzbot+91e6f9932ff122fa4410@syzkaller.appspotmail.com
> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
> 

Reviewed-by: Eric Dumazet <edumazet@google.com>

Thanks Paolo !

  reply	other threads:[~2018-03-23 14:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-23 13:47 [PATCH net v2] ipv6: the entire IPv6 header chain must fit the first fragment Paolo Abeni
2018-03-23 14:04 ` Eric Dumazet [this message]
2018-03-26  1:18 ` David Miller

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