On Fri, 2016-12-09 at 19:31 -0600, Thomas Falcon wrote:
> This patch is based on an earlier one submitted
> by Jon Maxwell with the following commit message:
>
> + DIV_ROUND_UP(skb->len - hdr_len, mss);
> + } else if (offset) {
> + skb_shinfo(skb)->gso_size = ntohs(tcph->check);
> + skb_shinfo(skb)->gso_segs =
> + DIV_ROUND_UP(skb->len - hdr_len,
> + skb_shinfo(skb)->gso_size);
> + tcph->check = 0;
> + }
Are you sure that tcph->check could never be 0 on some cases ?
That would crash on a divide by 0