On Fri, Apr 28, 2017 at 06:53:32PM -0700, Joe Perches wrote: > On Sat, 2017-04-29 at 09:45 +0800, Geliang Tang wrote: > > Use memdup_user() helper instead of open-coding to simplify the code. > > While I doubt this is a problem, this loses > the multiplication overflow check for > sizeof(*insns) * insnlist.n_isns Yes it is a problem, we need that check. thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel