linux-kernel - Re: general protection fault in __xfrm_policy_bysel

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Date:   Wed, 30 Jan 2019 15:03:13 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Florian Westphal <fw@...len.de>
Cc:     syzbot <syzbot+e6e1fe9148cffa18cf97@...kaller.appspotmail.com>,
        David Miller <davem@...emloft.net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: general protection fault in __xfrm_policy_bysel_ctx

On Tue, Jan 29, 2019 at 10:41 AM Florian Westphal <fw@...len.de> wrote:
>
> syzbot <syzbot+e6e1fe9148cffa18cf97@...kaller.appspotmail.com> wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:    085c4c7dd2b6 net: lmc: remove -I. header search path
> > git tree:       net-next
> > console output: https://syzkaller.appspot.com/x/log.txt?x=12347128c00000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=505743eba4e4f68
> > dashboard link: https://syzkaller.appspot.com/bug?extid=e6e1fe9148cffa18cf97
> > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> >
> > Unfortunately, I don't have any reproducer for this crash yet.
>
> net-next doesn't contain the fixes for the rbtree fallout yet, so
> this might already be fixed (fingers crossed).

Hi Florian,

What is that fix for the record?
We will need to close this later. Or perhaps we can already mark this
as fixed by that patch with "#syz fix:" command?