void kvm_inject_nmi(struct kvm_vcpu *vcpu)
{
	kvm_make_request(KVM_REQ_EVENT, vcpu);
	vcpu->arch.nmi_pending = 1;
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.