This warning does not occur on the Ubuntu 4.8 kernel.
It might be fixed by upstream Linux 4.5 commit d88270eef4b56bd7973841dd1fed387ccfa83709 "tcp: fix tcp_mark_head_lost to check skb len before fragmenting". https://github.com/torvalds/linux/commit/d88270eef4b56bd7973841dd1fed387ccfa83709
This warning does not occur on the Ubuntu 4.8 kernel.
It might be fixed by upstream Linux 4.5 commit d88270eef4b56bd 7973841dd1fed38 7ccfa83709 "tcp: fix tcp_mark_head_lost to check skb len before fragmenting". https:/ /github. com/torvalds/ linux/commit/ d88270eef4b56bd 7973841dd1fed38 7ccfa83709