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: <20190803071100.GC24334@kroah.com>
Date:   Sat, 3 Aug 2019 09:11:00 +0200
From:   "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:     Xin Long <lucien.xin@...il.com>
Cc:     "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@...ia.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "syzbot+a43d8d4e7e8a7a9e149e@...kaller.appspotmail.com" 
        <syzbot+a43d8d4e7e8a7a9e149e@...kaller.appspotmail.com>,
        "syzbot+c4c4b2bb358bb936ad7e@...kaller.appspotmail.com" 
        <syzbot+c4c4b2bb358bb936ad7e@...kaller.appspotmail.com>,
        "syzbot+a47c5f4c6c00fc1ed16e@...kaller.appspotmail.com" 
        <syzbot+a47c5f4c6c00fc1ed16e@...kaller.appspotmail.com>,
        "syzbot+a9e23ea2aa21044c2798@...kaller.appspotmail.com" 
        <syzbot+a9e23ea2aa21044c2798@...kaller.appspotmail.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "syzbot+0290d2290a607e035ba1@...kaller.appspotmail.com" 
        <syzbot+0290d2290a607e035ba1@...kaller.appspotmail.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "syzbot+9d4c12bfd45a58738d0a@...kaller.appspotmail.com" 
        <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 Sat, Aug 03, 2019 at 08:45:03AM +0800, Xin Long wrote:
> 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

This commit is also included in the following kernel releases:
	4.9.186 4.14.134 4.19.59 5.1.18 5.2

so this should all be taken care of, right?

If not, please let me know.

thanks,

greg k-h