static void pmac_ide_writeb (void *opaque,
                             hwaddr addr, uint32_t val)
{
    MACIOIDEState *d = opaque;

    addr = (addr & 0xFFF) >> 4;
    switch (addr) {
    case 1 ... 7:
        ide_ioport_write(&d->bus, addr, val);
        break;
    case 8:
    case 22:
        ide_cmd_write(&d->bus, 0, val);
        break;
    default:
        break;
    }
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.