From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net] packet: avoid panic in packet_getsockopt()
Date: Sat, 21 Oct 2017 01:50:08 +0100 (WEST)
Message-ID: <20171021.015008.162706023967923091.davem@davemloft.net>
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 18 Oct 2017 15:08:24 -0700

> From: Eric Dumazet <edumazet@google.com>
> 
> syzkaller got crashes in packet_getsockopt() processing
> PACKET_ROLLOVER_STATS command while another thread was managing
> to change po->rollover
> 
> Using RCU will fix this bug. We might later add proper RCU annotations
> for sparse sake.
> 
> Fixes: a9b6391814d5 ("packet: rollover statistics")
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied and queued up for -stable, but:

> Willem de Bruijn <willemb@google.com>

I didn't know what kind of tag you intended to use here for Willem
so just deleted the line.