IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5686 at net/core/dev.c:2473 skb_warn_bad_offload+0x2af/0x380 net/core/dev.c:2468
veth0_to_bridge: caps=(0x00000c229fbb59e9, 0x0000000000000000) len=65483 data_len=65393 gso_size=49152 gso_type=5 ip_summed=0
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 5686 Comm: syz-executor4 Not tainted 4.9.98-gf679e4d #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d70a74a0 ffffffff81eb0fc9 ffffffff83c484a0 00000000ffffffff
 0000000000000000 0000000000000001 00000000000009a9 ffff8801d70a7560
 ffffffff8141f975 0000000041b58ab3 ffffffff843b86e8 ffffffff8141f7b6
Call Trace:
 [<ffffffff81eb0fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb0fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8141f975>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff8141fc61>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff811344b2>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff83068c9f>] skb_warn_bad_offload+0x2af/0x380 net/core/dev.c:2468
 [<ffffffff83084026>] __skb_gso_segment+0x546/0x680 net/core/dev.c:2774
 [<ffffffff83084fde>] skb_gso_segment include/linux/netdevice.h:4000 [inline]
 [<ffffffff83084fde>] validate_xmit_skb+0x48e/0xab0 net/core/dev.c:3010
 [<ffffffff83086b18>] __dev_queue_xmit+0x888/0x2080 net/core/dev.c:3443
 [<ffffffff83088327>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3484
 [<ffffffff8368d85f>] packet_snd net/packet/af_packet.c:2960 [inline]
 [<ffffffff8368d85f>] packet_sendmsg+0x1eff/0x4470 net/packet/af_packet.c:2985
 [<ffffffff83012fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff83012fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff83013cbc>] SYSC_sendto+0x21c/0x370 net/socket.c:1670
 [<ffffffff830162d0>] SyS_sendto+0x40/0x50 net/socket.c:1638
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839f4653>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..