IPVS: set_ctl: invalid protocol: 46 224.0.0.1:20004 nq
------------[ cut here ]------------
WARNING: CPU: 0 PID: 24275 at net/core/dev.c:2473 skb_warn_bad_offload+0x2af/0x380 net/core/dev.c:2468
sit0: caps=(0x00000000803b7869, 0x0000000000000000) len=2048 data_len=2000 gso_size=1432 gso_type=2 ip_summed=0
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 24275 Comm: syz-executor2 Not tainted 4.9.94-g8683408 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801ce0170c8 ffffffff81d9b509 ffffffff83a484a0 00000000ffffffff
 0000000000000000 0000000000000000 00000000000009a9 ffff8801ce017188
 ffffffff8141f845 0000000041b58ab3 ffffffff8419c168 ffffffff8141f686
Call Trace:
 [<ffffffff81d9b509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9b509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8141f845>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff8141fb31>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff811344b2>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff82f45c9f>] skb_warn_bad_offload+0x2af/0x380 net/core/dev.c:2468
 [<ffffffff82f61026>] __skb_gso_segment+0x546/0x680 net/core/dev.c:2774
 [<ffffffff82f61f0e>] skb_gso_segment include/linux/netdevice.h:4000 [inline]
 [<ffffffff82f61f0e>] validate_xmit_skb+0x48e/0xab0 net/core/dev.c:3010
 [<ffffffff82f63a48>] __dev_queue_xmit+0x888/0x2080 net/core/dev.c:3443
 [<ffffffff82f65257>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3484
 [<ffffffff82f79985>] neigh_direct_output+0x15/0x20 net/core/neighbour.c:1354
 [<ffffffff8342fa08>] dst_neigh_output include/net/dst.h:470 [inline]
 [<ffffffff8342fa08>] ip6_finish_output2+0x8a8/0x1d00 net/ipv6/ip6_output.c:119
 [<ffffffff834391e8>] ip6_finish_output+0x3b8/0x760 net/ipv6/ip6_output.c:145
 [<ffffffff83439783>] NF_HOOK_COND include/linux/netfilter.h:246 [inline]
 [<ffffffff83439783>] ip6_output+0x1f3/0x6e0 net/ipv6/ip6_output.c:162
 [<ffffffff835531db>] dst_output include/net/dst.h:507 [inline]
 [<ffffffff835531db>] ip6_local_out+0x9b/0x180 net/ipv6/output_core.c:176
 [<ffffffff8343b941>] ip6_send_skb+0xa1/0x340 net/ipv6/ip6_output.c:1749
 [<ffffffff8349b63a>] udp_v6_send_skb+0x5ba/0xe70 net/ipv6/udp.c:974
 [<ffffffff834a106b>] udpv6_sendmsg+0x1ebb/0x2430 net/ipv6/udp.c:1246
 [<ffffffff83301ea3>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:770
 [<ffffffff82eeffcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82eeffcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef0cbc>] SYSC_sendto+0x21c/0x370 net/socket.c:1670
 [<ffffffff82ef32d0>] SyS_sendto+0x40/0x50 net/socket.c:1638
 [<ffffffff81006da7>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 [<ffffffff81006da7>] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387
 [<ffffffff838d2a10>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..