On Sat, Jun 09, 2018 at 11:48:42AM -0400, Hugo Lefeuvre wrote: > case PI433_IOC_WR_TX_CFG: > if (copy_from_user(&instance->tx_cfg, argp, > sizeof(struct pi433_tx_cfg))) > return -EFAULT; > break; Btw, it looks so wrong to me that we copy partial data to &instance->tx_cfg... I'd really prefer copying it to a tmp buffer and then verifying it's corrent then memcpy()ing it to &instance->tx_cfg. regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel