netdev - Re: [PATCH bpf-next] bpf: bpf_setsockopt: reset sock dst on SO

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Message-ID: <CAPNVh5fNh7fTmVNkB_oA0JTuBJ2oqbTBfGxhpa6eQkZ62iin=w@mail.gmail.com>
Date:   Thu, 17 Jan 2019 08:36:00 -0800
From:   Peter Oskolkov <posk@...gle.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        netdev <netdev@...r.kernel.org>,
        Peter Oskolkov <posk.devel@...il.com>,
        Maciej Żenczykowski <maze@...gle.com>
Subject: Re: [PATCH bpf-next] bpf: bpf_setsockopt: reset sock dst on SO_MARK changes

On Thu, Jan 17, 2019 at 7:50 AM Daniel Borkmann <daniel@...earbox.net> wrote:
>
> On 01/16/2019 05:47 PM, Peter Oskolkov wrote:
> > In sock_setsockopt() (net/core/sock.h), when SO_MARK option is used
> > to change sk_mark, sk_dst_reset(sk) is called. The same should be done
> > in bpf_setsockopt.
> >
> > Reported-by: Maciej Żenczykowski <maze@...gle.com>
> > Signed-off-by: Peter Oskolkov <posk@...gle.com>
>
> Given this is a fix, I'm inclined to apply to bpf tree. Objections?

Up to the maintainer... :)

>
> Thanks,
> Daniel