On Fri, 6 Apr 2012 09:46:46 -0400, Xi Wang <xi.wang@xxxxxxxxx> wrote: > On Apr 6, 2012, at 9:36 AM, Chris Wilson wrote: > > > On Fri, 6 Apr 2012 08:58:18 -0400, Xi Wang <xi.wang@xxxxxxxxx> wrote: > >> A large args->buffer_count from userspace may overflow the allocation > >> size, leading to out-of-bounds access. > >> > >> Use kmalloc_array() to avoid that. > > > > I can safely say that exec list larger than 4GiB is going to be an > > illegal operation and would rather the ioctl failed outright with > > EINVAL. > > On 32-bit platform? On any platform. The largest it can legally be is a few tens of megabytes. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
