static int em_pushf(struct x86_emulate_ctxt *ctxt)
{
	ctxt->src.val = (unsigned long)ctxt->eflags & ~EFLG_VM;
	return em_push(ctxt);
}

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.