From: Wei Wang <wei...@google.com>
Date: Wed, 3 Jan 2018 14:11:59 -0800
> From: Wei Wang <wei...@google.com>
>
> In fib6_add(), pn could be NULL if fib6_add_1() failed to return a fib6
> node. Checking pn != fn before accessing pn->leaf makes sure pn is not
> NULL.
> This fixes the following GPF reported by syzkaller:
...
> Reported-by: syzbot <syzkal...@googlegroups.com>
> Fixes: 66f5d6ce53e6 ("ipv6: replace rwlock with rcu and spinlock in
> fib6_table")
> Signed-off-by: Wei Wang <wei...@google.com>
Applied, thanks.
