On Thu, Jun 30, 2022 at 09:40:01PM +0800, kernel test robot wrote: > 1636 nnodes = control.num_ranges; > 1637 if (!nnodes || nnodes > LOG_MAX_RANGES) > 1638 return -EINVAL; > 1639 > > 1640 ranges = (struct vfio_device_feature_dma_logging_range __user *) > 1641 control.ranges; Things like this should always use u64_to_user_ptr() Jason
