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From: David Miller <davem@davemloft.net>
Subject: Re: net/ipv4: divide error in __tcp_select_window
Date: Thu, 31 Aug 2017 12:25:43 -0700 (PDT)
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From: Neal Cardwell <ncardwell@google.com>
Date: Thu, 31 Aug 2017 07:11:28 -0400

> Thanks for the report. I believe this tcp_recvmsg  => tcp_cleanup_rbuf
>  => __tcp_select_window divide-by-zero issue was fixed in May by Wei,
> in:
> 
>  499350a5a6e7 tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0
>  https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=499350a5a6e7
> 
> Looks like we should probably mark this as a -stable candidate, so
> that it will eventually make it to 4.4.y, 4.9.y, 4.12.y users, etc. (I
> don't see the commit in those stable branches.)

Ok, queued up for -stable, thanks.