From: Daniel Borkmann <[email protected]>
Date: Mon, 25 Jul 2016 18:06:12 +0200
> After a612769774a3 ("udp: prevent bugcheck if filter truncates packet
> too much"), there followed various other fixes for similar cases such
> as f4979fcea7fd ("rose: limit sk_filter trim to payload").
>
> Latter introduced a new helper sk_filter_trim_cap(), where we can pass
> the trim limit directly to the socket filter handling. Make use of it
> here as well with sizeof(struct udphdr) as lower cap limit and drop the
> extra skb->len test in UDP's input path.
>
> Signed-off-by: Daniel Borkmann <[email protected]>
Applied.
