static int pmcraid_notify_ccn(struct pmcraid_instance *pinstance)
{
	return pmcraid_notify_aen(pinstance,
				pinstance->ccn.msg,
				pinstance->ccn.hcam->data_len +
				sizeof(struct pmcraid_hcam_hdr));
}

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