On Wed, Jan 04, 2012 at 11:26:59PM +0000, Alan Cox wrote: > > Ok, can you try the patch below and let me know if it solves the problem > > or not? > > If it does the right fix is to stop clearing tty->driver_data. If > tty->driver_data can go NULL outside of the final release then its > probably an exploitable hole. So in acm_tty_close() we shouldn't set driver_data to NULL after we unregister the device? Ah, that should happen in tty_operations->cleanup()? It seems that cdc_acm.c doesn't have that function, which is causing this problem now, right? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
