Re: [PATCH net-next] udp: disable gso with no_check_tx

2018-05-02 Thread Willem de Bruijn
On Wed, May 2, 2018 at 9:05 AM, Michal Kubecek wrote: > On Mon, Apr 30, 2018 at 03:58:36PM -0400, Willem de Bruijn wrote: >> From: Willem de Bruijn >> >> Syzbot managed to send a udp gso packet without checksum offload into >> the gso stack by disabling tx checksum (UDP_NO_CHECK6_TX). This >> tri

Re: [PATCH net-next] udp: disable gso with no_check_tx

2018-05-02 Thread Michal Kubecek
On Mon, Apr 30, 2018 at 03:58:36PM -0400, Willem de Bruijn wrote: > From: Willem de Bruijn > > Syzbot managed to send a udp gso packet without checksum offload into > the gso stack by disabling tx checksum (UDP_NO_CHECK6_TX). This > triggered the skb_warn_bad_offload. > > RIP: 0010:skb_warn_ba

Re: [PATCH net-next] udp: disable gso with no_check_tx

2018-05-01 Thread David Miller
From: Willem de Bruijn Date: Mon, 30 Apr 2018 15:58:36 -0400 > From: Willem de Bruijn > > Syzbot managed to send a udp gso packet without checksum offload into > the gso stack by disabling tx checksum (UDP_NO_CHECK6_TX). Impressive... > This triggered the skb_warn_bad_offload. > > RIP: 001

[PATCH net-next] udp: disable gso with no_check_tx

2018-04-30 Thread Willem de Bruijn
From: Willem de Bruijn Syzbot managed to send a udp gso packet without checksum offload into the gso stack by disabling tx checksum (UDP_NO_CHECK6_TX). This triggered the skb_warn_bad_offload. RIP: 0010:skb_warn_bad_offload+0x2bc/0x600 net/core/dev.c:2658 skb_gso_segment include/linux/netde