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Date:   Sun, 10 Dec 2017 12:38:56 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     syzbot 
        <bot+ed0838d0fa4c4f2b528e20286e6dc63effc7c14d@...kaller.appspotmail.com>,
        davem <davem@...emloft.net>, kuznet <kuznet@....inr.ac.ru>,
        LKML <linux-kernel@...r.kernel.org>, linux-sctp@...r.kernel.org,
        network dev <netdev@...r.kernel.org>,
        Neil Horman <nhorman@...driver.com>,
        syzkaller-bugs@...glegroups.com,
        Vlad Yasevich <vyasevich@...il.com>,
        yoshfuji <yoshfuji@...ux-ipv6.org>
Subject: Re: kernel BUG at net/core/skbuff.c:LINE! (2)

On Sun, Dec 10, 2017 at 3:36 AM, Cong Wang <xiyou.wangcong@...il.com> wrote:
> On Fri, Dec 8, 2017 at 12:45 AM, Xin Long <lucien.xin@...il.com> wrote:
>> This isn't a sctp problem, but mld's, seems when lo's mtu became 0,
>> it allocs a skb without enough space in add_grec():
>
> Shouldn't we just set its min_mtu to ETH_MIN_MTU?
No idea why there's no min_mtu limitation for lo dev.

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