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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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