netdev - Re: [PATCH net 2/2] tcp: tcp_v4_err() should be more careful

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Message-ID: <CADVnQymt=dtyQDhMNFz4Wmbeqbies_nwvU7fxawyizOji5H7eg@mail.gmail.com>
Date:   Fri, 15 Feb 2019 21:21:32 -0500
From:   Neal Cardwell <ncardwell@...gle.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Yuchung Cheng <ycheng@...gle.com>,
        soukjin bae <soukjin.bae@...sung.com>
Subject: Re: [PATCH net 2/2] tcp: tcp_v4_err() should be more careful

On Fri, Feb 15, 2019 at 4:36 PM Eric Dumazet <edumazet@...gle.com> wrote:
>
> ICMP handlers are not very often stressed, we should
> make them more resilient to bugs that might surface in
> the future.
>
> If there is no packet in retransmit queue, we should
> avoid a NULL deref.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: soukjin bae <soukjin.bae@...sung.com>
> ---
>  net/ipv4/tcp_ipv4.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Acked-by: Neal Cardwell <ncardwell@...gle.com>

Thanks!

neal