static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
	void (* done)(struct scsi_cmnd *))
{
	struct Scsi_Host *host = cmd->device->host;
	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
	struct CommandControlBlock *ccb;
	int target = cmd->device->id;
	int lun = cmd->device->lun;
	uint8_t scsicmd = cmd->cmnd[0];
	cmd->scsi_done = done;
	cmd->host_scribble = NULL;
	cmd->result = 0;
	if ((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)){
		if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
    			cmd->result = (DID_NO_CONNECT << 16);
		}
		cmd->scsi_done(cmd);
		return 0;
	}
	if (target == 16) {
		/* virtual device for iop message transfer */
		arcmsr_handle_virtual_command(acb, cmd);
		return 0;
	}
	ccb = arcmsr_get_freeccb(acb);
	if (!ccb)
		return SCSI_MLQUEUE_HOST_BUSY;
	if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
		cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
		cmd->scsi_done(cmd);
		return 0;
	}
	arcmsr_post_ccb(acb, ccb);
	return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.