On Tue, 2017-02-07 at 15:57 -0500, Willem de Bruijn wrote: > From: Willem de Bruijn <will...@google.com> > > Link layer protocols may unconditionally pull headers, as Ethernet > does in eth_type_trans. Ensure that the entire link layer header > always lies in the skb linear segment. tpacket_snd has such a check. > Extend this to packet_snd. > > Variable length link layer headers complicate the computation > somewhat. Here skb->len may be smaller than dev->hard_header_len. > > Round up the linear length to be at least as long as the smallest of > the two. > > Reported-by: Dmitry Vyukov <dvyu...@google.com> > Signed-off-by: Willem de Bruijn <will...@google.com> > ---
Acked-by: Eric Dumazet <eduma...@google.com>
