netdev - Re: [PATCH net] net_sched: validate TCA_KIND attribute in tc_chain_tmplt

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Message-ID: <CAM_iQpVE5-59QPiP3Od7p-Fkjwjcm5QYrncN0LofWEC+TPTZUw@mail.gmail.com>
Date:   Sat, 7 Dec 2019 10:57:20 -0800
From:   Cong Wang <xiyou.wangcong@...il.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>,
        syzbot <syzkaller@...glegroups.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH net] net_sched: validate TCA_KIND attribute in tc_chain_tmplt_add()

On Sat, Dec 7, 2019 at 10:49 AM Eric Dumazet <edumazet@...gle.com> wrote:
>
> Use the new tcf_proto_check_kind() helper to make sure user
> provided value is well formed.
...
> Fixes: 6f96c3c6904c ("net_sched: fix backward compatibility for TCA_KIND")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>
> Cc: Cong Wang <xiyou.wangcong@...il.com>
> Cc: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
> Cc: Jamal Hadi Salim <jhs@...atatu.com>
> Cc: Jiri Pirko <jiri@...nulli.us>

Acked-by: Cong Wang <xiyou.wangcong@...il.com>

Just a nit: the extack message should be for a chain template, not
for a TC filter.

Thanks.