linux-kernel - Re: WARNING in do

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Message-ID: <20180126194725.x5tqo7htlou453sg@gmail.com>
Date:   Fri, 26 Jan 2018 11:47:25 -0800
From:   Eric Biggers <ebiggers3@...il.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Wanpeng Li <kernellwp@...il.com>,
        syzbot 
        <syzbot+adbefe6736a5b37af36f19ebfa8764fcdd9ddaed@...kaller.appspotmail.com>,
        David Hildenbrand <david@...hat.com>,
        Haozhong Zhang <haozhong.zhang@...el.com>,
        kvm <kvm@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krcmar <rkrcmar@...hat.com>,
        syzkaller-bugs@...glegroups.com,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: WARNING in do_debug

On Tue, Dec 26, 2017 at 08:08:13AM +0100, 'Dmitry Vyukov' via syzkaller-bugs wrote:
> On Tue, Dec 26, 2017 at 1:55 AM, Wanpeng Li <kernellwp@...il.com> wrote:
> > 2017-12-26 8:22 GMT+08:00 syzbot
> > <syzbot+adbefe6736a5b37af36f19ebfa8764fcdd9ddaed@...kaller.appspotmail.com>:
> >> syzkaller has found reproducer for the following crash on
> >> 464e1d5f23cca236b930ef068c328a64cab78fb1
> >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master
> >> compiler: gcc (GCC) 7.1.1 20170620
> >> .config is attached
> >> Raw console output is attached.
> >> C reproducer is attached
> >> syzkaller reproducer is attached. See https://goo.gl/kgGztJ
> >> for information about syzkaller reproducers
> >>
> >
> > https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?h=queue&id=ed3b37ac63a060bdc184d126c0655c1af8b6de62
> >
> > There is a fix in kvm/queue.
> 
> Hi Wanpeng,
> 
> syzbot does not know about the fix and still thinks that this bug is
> open. Please tell it about the fix:
> 
> 
> > syzbot will keep track of this bug report.
> > Once a fix for this bug is committed, please reply to this email with:
> > #syz fix: exact-commit-title
> > Note: all commands must start from beginning of the line.

#syz fix: KVM: x86: fix escape of guest dr6 to the host

Wanpeng, shouldn't this be Cc'ed to stable?

- Eric