------------[ cut here ]------------
WARNING: CPU: 0 PID: 30076 at net/core/dev.c:2495 skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
lo: caps=(0x000000a2803b7c69, 0x0000000000000000) len=4086 data_len=3768 gso_size=8 gso_type=4 ip_summed=0
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 30076 Comm: syz-executor.5 Not tainted 4.9.141+ #1
 ffff88004f467238 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff
 ffffffff82c71900 0000000000000000 0000000000000009 ffff88004f4672f8
 ffffffff813f7125 0000000041b58ab3 ffffffff82e2b62b ffffffff813f6f66
Call Trace:
 [<ffffffff81b42e79>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b42e79>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff813f7125>] panic+0x1bf/0x39f kernel/panic.c:179
 [<ffffffff813f7362>] __warn.cold.8+0x2f/0x2f kernel/panic.c:542
 [<ffffffff810dbec2>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff822fbc80>] skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
 [<ffffffff823133fe>] __skb_gso_segment+0x57e/0x6b0 net/core/dev.c:2796
 [<ffffffff82314390>] skb_gso_segment include/linux/netdevice.h:4007 [inline]
 [<ffffffff82314390>] validate_xmit_skb+0x490/0xab0 net/core/dev.c:3032
 [<ffffffff82315eb5>] __dev_queue_xmit+0x835/0x1b90 net/core/dev.c:3465
 [<ffffffff82317227>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3506
 [<ffffffff827d860d>] packet_snd net/packet/af_packet.c:2962 [inline]
 [<ffffffff827d860d>] packet_sendmsg+0x1edd/0x4520 net/packet/af_packet.c:2987
 [<ffffffff822a063b>] sock_sendmsg_nosec net/socket.c:648 [inline]
 [<ffffffff822a063b>] sock_sendmsg+0xbb/0x110 net/socket.c:658
 [<ffffffff822a0a83>] kernel_sendmsg+0x43/0x50 net/socket.c:666
 [<ffffffff822ab2c2>] sock_no_sendpage+0x112/0x150 net/core/sock.c:2334
 [<ffffffff822a0313>] kernel_sendpage+0x93/0xf0 net/socket.c:3334
 [<ffffffff822a03fc>] sock_sendpage+0x8c/0xc0 net/socket.c:802
 [<ffffffff815a98c6>] pipe_to_sendpage+0x266/0x330 fs/splice.c:470
 [<ffffffff815ad926>] splice_from_pipe_feed fs/splice.c:521 [inline]
 [<ffffffff815ad926>] __splice_from_pipe+0x316/0x710 fs/splice.c:645
 [<ffffffff815af439>] splice_from_pipe+0xf9/0x170 fs/splice.c:680
 [<ffffffff815af4ec>] generic_splice_sendpage+0x3c/0x50 fs/splice.c:851
 [<ffffffff815b066d>] do_splice_from fs/splice.c:870 [inline]
 [<ffffffff815b066d>] do_splice fs/splice.c:1166 [inline]
 [<ffffffff815b066d>] SYSC_splice fs/splice.c:1416 [inline]
 [<ffffffff815b066d>] SyS_splice+0xe4d/0x14d0 fs/splice.c:1399
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82817893>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..