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Date:   Thu, 1 Sep 2022 16:48:47 +0200
From:   Richard Gobert <richardbgobert@gmail.com>
To:     Eric Dumazet <edumazet@google.com>
Cc:     David Miller <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
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Subject: Re: [PATCH 2/4] net-next: ip6: fetch inetpeer in ip6frag_init
Message-ID: <20220901144810.GA31767@debian>
References: <20220829114600.GA2374@debian>
 <CANn89iLH4nDuOHS-0AzYBYOz4f3byZndKXG3_VefVxUbujJZNg@mail.gmail.com>
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On Mon, Aug 29, 2022 at 03:20:54PM -0700, Eric Dumazet wrote:
> Sorry, this is adding yet another bottleneck, and will make DDOS
> attacks based on fragments more effective.
> 
> Whole concept of 'peers' based on IPv6 addresses is rather weak, as
> hosts with IPv6 can easily
> get millions of different 'addresses'.

I understand the problem with the implementation. Since peers don't 
carry much weight in IPv6, this patch can be dropped.