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Date: Fri, 3 Mar 2017 10:25:59 -0800
From: Eric Dumazet <edumazet@...gle.com>
To: Dmitry Vyukov <dvyukov@...gle.com>
Cc: David Miller <davem@...emloft.net>,
Alexey Kuznetsov <kuznet@....inr.ac.ru>,
James Morris <jmorris@...ei.org>,
Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
Patrick McHardy <kaber@...sh.net>,
netdev <netdev@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Cong Wang <xiyou.wangcong@...il.com>,
syzkaller <syzkaller@...glegroups.com>
Subject: Re: net/ipv4: division by 0 in tcp_select_window
On Fri, Mar 3, 2017 at 10:10 AM, Dmitry Vyukov <dvyukov@...gle.com> wrote:
> Hello,
>
> The following program triggers division by 0 in tcp_select_window:
>
> https://gist.githubusercontent.com/dvyukov/ef28c0fd2ab57a655508ef7621b12e6c/raw/079011e2a9523a390b0621cbc1e5d9d5e637fd6d/gistfile1.txt
Yeah, tcp_disconnect() should never have existed in the first place.
We'll send a patch, unless you take care of this before us .
Thanks.
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