static void pmcraid_release_hcams(struct pmcraid_instance *pinstance)
{
	if (pinstance->ccn.msg != NULL) {
		pci_free_consistent(pinstance->pdev,
				    PMCRAID_AEN_HDR_SIZE +
				    sizeof(struct pmcraid_hcam_ccn_ext),
				    pinstance->ccn.msg,
				    pinstance->ccn.baddr);

		pinstance->ccn.msg = NULL;
		pinstance->ccn.hcam = NULL;
		pinstance->ccn.baddr = 0;
	}

	if (pinstance->ldn.msg != NULL) {
		pci_free_consistent(pinstance->pdev,
				    PMCRAID_AEN_HDR_SIZE +
				    sizeof(struct pmcraid_hcam_ldn),
				    pinstance->ldn.msg,
				    pinstance->ldn.baddr);

		pinstance->ldn.msg = NULL;
		pinstance->ldn.hcam = NULL;
		pinstance->ldn.baddr = 0;
	}
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.