Re: [PATCH v2] netfilter: take care of timewait sockets

Eric Dumazet [off-list ref] wrote:

Sami Farin reported crashes in xt_LOG because it assumes skb->sk is a
full blown socket.

But with TCP early demux, we can have skb->sk pointing to a timewait
socket.

Same fix is needed in netfnetlink_log

Looks good, but IMHO it is very un-intuitive that
skb->sk might be a pointer to an object that is not struct sock (or
a compatible object).