On Mon, Oct 23, 2017 at 09:59:35PM +0000, Wei Wang wrote: > From: Wei Wang <wei...@google.com> > > In rt6_select(), fn->leaf could be pointing to net->ipv6.ip6_null_entry. > In this case, we should directly return instead of trying to carry on > with the rest of the process. > If not, we could crash at: > spin_lock_bh(&leaf->rt6i_table->rt6_lock); > because net->ipv6.ip6_null_entry does not have rt6i_table set. Make sense. leaf->rt6i_table->rt6_lock is only needed after the rcu work.
Thanks for fixing it! Acked-by: Martin KaFai Lau <ka...@fb.com>
