netdev - Re: [PATCH net] ipv6: fix suspicious RCU usage in rt6_dump

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Message-ID: <20190626123436.2dd2f11d@redhat.com>
Date:   Wed, 26 Jun 2019 12:34:36 +0200
From:   Stefano Brivio <sbrivio@...hat.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>,
        David Ahern <dsahern@...il.com>
Subject: Re: [PATCH net] ipv6: fix suspicious RCU usage in rt6_dump_route()

On Wed, 26 Jun 2019 03:05:28 -0700
Eric Dumazet <edumazet@...gle.com> wrote:

> syzbot reminded us that rt6_nh_dump_exceptions() needs to be called
> with rcu_read_lock()
> 
> net/ipv6/route.c:1593 suspicious rcu_dereference_check() usage!

Thanks for fixing this too.

Reviewed-by: Stefano Brivio <sbrivio@...hat.com>

-- 
Stefano