On Tue, Apr 25, 2017 at 05:33:19PM -0700, Adrian Salido wrote: > it's actually the data portion of the struct under a custom user ioctl > where (param_kernel->data_size - minimum_data_size) < > sizeof(param_kernel->data) > Will update the patch to be clear Yes - but before updating the patch, we need to be clearer about the requirements of the ioctl here. Why are two different minimum data sizes used? If we let userspace send a truncated dm_ioctl struct, why are we not returning the same truncated one? Is this the bug? param->data_size = sizeof(*param); Alasdair -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
