netdev - Re: [PATCH net-next] net/ipv6: fix LOCKDEP issue in rt6_remove_exception

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Message-Id: <20180424.161938.1265588832730788595.davem@davemloft.net>
Date:   Tue, 24 Apr 2018 16:19:38 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com, dsahern@...il.com
Subject: Re: [PATCH net-next] net/ipv6: fix LOCKDEP issue in
 rt6_remove_exception_rt()

From: Eric Dumazet <edumazet@...gle.com>
Date: Tue, 24 Apr 2018 09:22:49 -0700

> rt6_remove_exception_rt() is called under rcu_read_lock() only.
> 
> We lock rt6_exception_lock a bit later, so we do not hold
> rt6_exception_lock yet.
> 
> Fixes: 8a14e46f1402 ("net/ipv6: Fix missing rcu dereferences on from")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied, thanks Eric.