linux-kernel - Re: [PATCH 4.14 43/43] tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit

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Message-ID: <CADvbK_cOU00xqML35NMf3jk+S81kRLteHODf6Y-OsxPRDurSoQ@mail.gmail.com>
Date:   Sat, 3 Aug 2019 08:45:03 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@...ia.com>
Cc:     "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "syzbot+a43d8d4e7e8a7a9e149e@...kaller.appspotmail.com" 
        <syzbot+a43d8d4e7e8a7a9e149e@...kaller.appspotmail.com>,
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        <syzbot+c4c4b2bb358bb936ad7e@...kaller.appspotmail.com>,
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        <syzbot+a9e23ea2aa21044c2798@...kaller.appspotmail.com>,
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        <syzbot+9d4c12bfd45a58738d0a@...kaller.appspotmail.com>
Subject: Re: [PATCH 4.14 43/43] tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb

On Fri, Aug 2, 2019 at 7:03 PM Rantala, Tommi T. (Nokia - FI/Espoo)
<tommi.t.rantala@...ia.com> wrote:
>
> On Fri, 2019-08-02 at 09:28 +0200, gregkh@...uxfoundation.org wrote:
> > On Thu, Aug 01, 2019 at 10:17:30AM +0000, Rantala, Tommi T. (Nokia -
> > FI/Espoo) wrote:
> > > Hi,
> > >
> > > This tipc patch added in 4.14.132 is triggering a crash for me,
> > > revert
> > > fixes it.
> > >
> > > Anyone have ideas if some other commits missing in 4.14.x to make
> > > this
> > > work...?
> >
> > Do you also hav a problem with 4.19.y?  How about 5.2.y?  If not, can
> > you do 'git bisect' to find the patch that fixes the issue?
> >
> > thanks,
> >
> > greg k-h
>
> Hi, please pick this to 4.14.y and 4.19.y, tested that it fixes the
> crash in both:
>
> commit 5684abf7020dfc5f0b6ba1d68eda3663871fce52
> Author: Xin Long <lucien.xin@...il.com>
> Date:   Mon Jun 17 21:34:13 2019 +0800
>
>     ip_tunnel: allow not to count pkts on tstats by setting skb's dev
> to NULL
Thanks Rantala,

sorry for late, I was in a trip.

The patch belongs to a patchset:

https://www.spinics.net/lists/netdev/msg578674.html

So this commit should also be included:

commit 6f6a8622057c92408930c31698394fae1557b188
Author: Xin Long <lucien.xin@...il.com>
Date:   Mon Jun 17 21:34:14 2019 +0800

    ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL

Next time I think I should put "Fixes:" flag into each patch.

>
>
> For 5.2.y nothing is needed, these commits were in v5.2-rc6 already.
>
> -Tommi
>