--- drivers/scsi/pmcraid.c

+++ drivers/scsi/pmcraid.c

@@ -3508,6 +3508,9 @@ static long pmcraid_ioctl_passthrough(

rc = -EFAULT;

goto out_free_buffer;

}

+ } else if (request_size < 0) {

+ rc = -EINVAL;

+ goto out_free_buffer;

}

/* check if we have any additional command parameters */