From: Sean Christopherson <sean.j.christopherson@intel.com>
To: syzbot <syzbot+ab5d7a5d0fc0c7518f6d@syzkaller.appspotmail.com>
Cc: hpa@zytor.com, jmattson@google.com, karahmed@amazon.de,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
mingo@redhat.com, pbonzini@redhat.com, rkrcmar@redhat.com,
syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
x86@kernel.org
Subject: Re: WARNING in enter_vmx_operation
Date: Mon, 1 Apr 2019 12:21:19 -0700 [thread overview]
Message-ID: <20190401192119.GC24070@linux.intel.com> (raw)
In-Reply-To: <000000000000c6c95105854d4f1d@google.com>
On Sat, Mar 30, 2019 at 03:33:00AM -0700, syzbot wrote:
> syzbot has bisected this bug to:
>
> commit 8fcc4b5923af5de58b80b53a069453b135693304
> Author: Jim Mattson <jmattson@google.com>
> Date: Tue Jul 10 09:27:20 2018 +0000
>
> kvm: nVMX: Introduce KVM_CAP_NESTED_STATE
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16dc157d200000
> start commit: 3f16503b Merge branch 'fixes' of git://git.kernel.org/pub/..
> git tree: upstream
> final crash: https://syzkaller.appspot.com/x/report.txt?x=15dc157d200000
> console output: https://syzkaller.appspot.com/x/log.txt?x=11dc157d200000
> kernel config: https://syzkaller.appspot.com/x/.config?x=49927b422dcf0b29
> dashboard link: https://syzkaller.appspot.com/bug?extid=ab5d7a5d0fc0c7518f6d
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=132365a6400000
>
> Reported-by: syzbot+ab5d7a5d0fc0c7518f6d@syzkaller.appspotmail.com
> Fixes: 8fcc4b5923af ("kvm: nVMX: Introduce KVM_CAP_NESTED_STATE")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
Likewise, this is variant on the bug fixed by commit 5bea5123cbf0 ("KVM: VMX:
check nested state and CR4.VMXE against SMM").
#syz fix: KVM: VMX: check nested state and CR4.VMXE against SMM
prev parent reply other threads:[~2019-04-01 19:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-31 1:31 WARNING in enter_vmx_operation syzbot
2019-03-30 10:33 ` syzbot
2019-04-01 19:21 ` Sean Christopherson [this message]
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