Re: [PATCH] ipv6: fix NULL pointer dereference in ip6_output()

[Florian Westphal]

David Ahern <dsahern@xxxxxxxxx> wrote:
> On 12/7/21 5:21 PM, Andrea Mayer wrote:
> > +        IP6CB(skb)->iif = skb->skb_iif;
> >          [...]
> > 
> > What do you think?
> > 
> 
> I like that approach over the need for a fall back in core ipv6 code.

What if the device is removed after ->iif assignment and before dev lookup?