static void mptsas_update_interrupt(MPTSASState *s)
{
    PCIDevice *pci = (PCIDevice *) s;
    uint32_t state = s->intr_status & ~(s->intr_mask | MPI_HIS_IOP_DOORBELL_STATUS);

    if (s->msi_in_use && msi_enabled(pci)) {
        if (state) {
            trace_mptsas_irq_msi(s);
            msi_notify(pci, 0);
        }
    }

    trace_mptsas_irq_intx(s, !!state);
    pci_set_irq(pci, !!state);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.