netdev - Re: [PATCH net] net: igmp: add a missing rcu locking section

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Message-Id: <20180201.150009.1785639412359558938.davem@davemloft.net>
Date:   Thu, 01 Feb 2018 15:00:09 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     netdev@...r.kernel.org, cernekee@...omium.org
Subject: Re: [PATCH net] net: igmp: add a missing rcu locking section

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 01 Feb 2018 10:26:57 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Newly added igmpv3_get_srcaddr() needs to be called under rcu lock.
> 
> Timer callbacks do not ensure this locking.
 ...
> Fixes: a46182b00290 ("net: igmp: Use correct source address on IGMPv3 reports")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied and queued up for -stable.