------------[ cut here ]------------
WARNING: CPU: 0 PID: 4002 at net/core/dev.c:2490 skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
lo: caps=(0x000000a2803b7c69, 0x0000000000000000) len=4086 data_len=3768 gso_size=274 gso_type=4 ip_summed=0
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4002 Comm: syz-executor.3 Not tainted 4.9.202+ #0
 ffff8801a0197238 ffffffff81b55d2b ffff8801a0197300 ffffffff82a3b700
 00000000ffffffff 0000000000000000 0000000000000009 ffff8801a0197318
 ffffffff813fef21 0000000041b58ab3 ffffffff82e316f3 ffffffff813fed41
Call Trace:
 [<0000000068121db1>] __dump_stack lib/dump_stack.c:15 [inline]
 [<0000000068121db1>] dump_stack+0xcb/0x130 lib/dump_stack.c:56
 [<0000000031468c85>] panic+0x1e0/0x3c4 kernel/panic.c:181
 [<00000000e9bdd2c9>] __warn.cold+0x2f/0x2f kernel/panic.c:547
 [<00000000fdae36d7>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:570
 [<00000000bbcac25a>] skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
 [<00000000d1f24891>] __skb_gso_segment+0x597/0x6c0 net/core/dev.c:2796
 [<00000000efb378f4>] skb_gso_segment include/linux/netdevice.h:4010 [inline]
 [<00000000efb378f4>] validate_xmit_skb+0x4a1/0xaa0 net/core/dev.c:3032
 [<0000000016ef0055>] __dev_queue_xmit+0x83e/0x1bd0 net/core/dev.c:3465
 [<0000000043c84470>] dev_queue_xmit+0x18/0x20 net/core/dev.c:3506
 [<0000000020e2adf6>] packet_snd net/packet/af_packet.c:2990 [inline]
 [<0000000020e2adf6>] packet_sendmsg+0x24e0/0x47c0 net/packet/af_packet.c:3015
 [<000000005ef78f44>] sock_sendmsg_nosec net/socket.c:649 [inline]
 [<000000005ef78f44>] sock_sendmsg+0xbe/0x110 net/socket.c:659
 [<000000008c10d923>] kernel_sendmsg+0x44/0x50 net/socket.c:667
 [<000000002877a010>] sock_no_sendpage+0x116/0x150 net/core/sock.c:2340
 [<000000005eef434a>] kernel_sendpage+0x95/0xf0 net/socket.c:3326
 [<0000000085909355>] sock_sendpage+0x8b/0xc0 net/socket.c:803
 [<000000007189b634>] pipe_to_sendpage+0x28d/0x3d0 fs/splice.c:470
 [<0000000073d789d6>] splice_from_pipe_feed fs/splice.c:521 [inline]
 [<0000000073d789d6>] __splice_from_pipe+0x351/0x790 fs/splice.c:645
 [<000000007d79b916>] splice_from_pipe+0x108/0x170 fs/splice.c:680
 [<000000006ae63fe3>] generic_splice_sendpage+0x3c/0x50 fs/splice.c:851
 [<00000000f77e8475>] do_splice_from fs/splice.c:870 [inline]
 [<00000000f77e8475>] do_splice fs/splice.c:1166 [inline]
 [<00000000f77e8475>] SYSC_splice fs/splice.c:1416 [inline]
 [<00000000f77e8475>] SyS_splice+0xe02/0x14c0 fs/splice.c:1399
 [<0000000076f7153c>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<00000000c29407f5>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..