Re: [PATCH net] net: ipv6: RTF_PCPU should not be settable from userspace

[Martin KaFai Lau]

On Thu, Apr 20, 2017 at 04:43:03PM -0600, David Ahern wrote:
> On 4/20/17 4:39 PM, Cong Wang wrote:
> > On Wed, Apr 19, 2017 at 2:19 PM, David Ahern <d...@cumulusnetworks.com> 
> > wrote:
> >>
> >> Fix by checking for the flag and failing with EINVAL.
> >>
> >
> > I am still not sure about this. There are a few unused bits in
> > this flag, we simply ignore the rest, right? Why should we
> > reject this one instead of all of those we don't use?
> >
>
> RTF_PCPU most definitely should not be set by userspace.
+1