static uint64_t ahci_mem_read(void *opaque, hwaddr addr,
                              unsigned size)
{
    AHCIState *s = opaque;
    uint32_t val = 0;

    if (addr < AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR) {
        switch (addr) {
        case HOST_CAP:
            val = s->control_regs.cap;
            break;
        case HOST_CTL:
            val = s->control_regs.ghc;
            break;
        case HOST_IRQ_STAT:
            val = s->control_regs.irqstatus;
            break;
        case HOST_PORTS_IMPL:
            val = s->control_regs.impl;
            break;
        case HOST_VERSION:
            val = s->control_regs.version;
            break;
        }

        DPRINTF(-1, "(addr 0x%08X), val 0x%08X\n", (unsigned) addr, val);
    } else if ((addr >= AHCI_PORT_REGS_START_ADDR) &&
               (addr < (AHCI_PORT_REGS_START_ADDR +
                (s->ports * AHCI_PORT_ADDR_OFFSET_LEN)))) {
        val = ahci_port_read(s, (addr - AHCI_PORT_REGS_START_ADDR) >> 7,
                             addr & AHCI_PORT_ADDR_OFFSET_MASK);
    }

    return val;
}

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.