From: Sean Christopherson <seanjc@google.com>
To: syzbot <syzbot+8112db3ab20e70d50c31@syzkaller.appspotmail.com>
Cc: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com,
jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, mingo@redhat.com,
pbonzini@redhat.com, syzkaller-bugs@googlegroups.com,
tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com,
x86@kernel.org
Subject: Re: [syzbot] WARNING in free_loaded_vmcs (3)
Date: Tue, 25 Jan 2022 20:21:57 +0000 [thread overview]
Message-ID: <YfBb5YU4adUAptUg@google.com> (raw)
In-Reply-To: <0000000000002c4f0905d655b052@google.com>
On Mon, Jan 24, 2022, syzbot wrote:
> WARNING: CPU: 0 PID: 3606 at arch/x86/kvm/vmx/vmx.c:2665 free_loaded_vmcs arch/x86/kvm/vmx/vmx.c:2665 [inline]
> WARNING: CPU: 0 PID: 3606 at arch/x86/kvm/vmx/vmx.c:2665 free_loaded_vmcs+0x158/0x1a0 arch/x86/kvm/vmx/vmx.c:2656
KVM gets confused if userspace abuses KVM_SET_VCPU_EVENTS to toggle SMM on/off
while the vCPU is post-VMXON, I'll send a patch.
prev parent reply other threads:[~2022-01-25 20:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-24 15:33 [syzbot] WARNING in free_loaded_vmcs (3) syzbot
2022-01-25 20:21 ` Sean Christopherson [this message]
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