netdev - Re: Stable request

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Date:   Wed, 16 Oct 2019 13:47:47 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     ecree@...arflare.com
Cc:     lucien.xin@...il.com, netdev@...r.kernel.org,
        linux-sctp@...r.kernel.org, marcelo.leitner@...il.com,
        nhorman@...driver.com, brouer@...hat.com, dvyukov@...gle.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: Stable request

From: Edward Cree <ecree@...arflare.com>
Date: Wed, 16 Oct 2019 16:26:50 +0100

> On 04/10/2019 16:17, Edward Cree wrote:
>> On 23/08/2019 22:42, David Miller wrote:
>>> From: Xin Long <lucien.xin@...il.com>
>>> Date: Fri, 23 Aug 2019 19:33:03 +0800
>>>
>>>> We need a similar fix for ipv6 as Commit 0761680d5215 ("net: ipv4: fix
>>>> listify ip_rcv_finish in case of forwarding") does for ipv4.
>>>>
>>>> This issue can be reprocuded by syzbot since Commit 323ebb61e32b ("net:
>>>> use listified RX for handling GRO_NORMAL skbs") on net-next. The call
>>>> trace was:
>>>  ...
>>>> Fixes: d8269e2cbf90 ("net: ipv6: listify ipv6_rcv() and ip6_rcv_finish()")
>>>> Fixes: 323ebb61e32b ("net: use listified RX for handling GRO_NORMAL skbs")
>>>> Reported-by: syzbot+eb349eeee854e389c36d@...kaller.appspotmail.com
>>>> Reported-by: syzbot+4a0643a653ac375612d1@...kaller.appspotmail.com
>>>> Signed-off-by: Xin Long <lucien.xin@...il.com>
>>> Applied, thanks.
>> Just noticed that this only went to net-next (and 5.4-rc1), when actually
>>  it's needed on all kernels back to 4.19 (per the first Fixes: tag).  The
>>  second Fixes: reference, 323ebb61e32b, merely enables syzbot to hit it on
>>  whatever hardware it has, but the bug was already there, and hittable on
>>  sfc NICs.
>> David, can this go to stable please?
> Hi, did this get missed or was my request improper in some way?

Sorry, I'm just getting over a cold and very backlogged on this kind of stuff.

I'll get to this while I can Ed.