------------[ cut here ]------------
WARNING: CPU: 0 PID: 13395 at net/core/dev.c:2495 skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
lo: caps=(0x000000a2803b7c69, 0x0000000000000000) len=536 data_len=0 gso_size=279 gso_type=6 ip_summed=0
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 13395 Comm: syz-executor.3 Not tainted 4.9.141+ #23
 ffff8801d1a3f410 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff
 ffffffff82c71900 0000000000000000 0000000000000009 ffff8801d1a3f4d0
 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
 [<ffffffff822a08b3>] sock_write_iter+0x223/0x3b0 net/socket.c:856
 [<ffffffff81508347>] new_sync_write fs/read_write.c:496 [inline]
 [<ffffffff81508347>] __vfs_write+0x3d7/0x580 fs/read_write.c:509
 [<ffffffff8150ab97>] vfs_write+0x187/0x520 fs/read_write.c:557
 [<ffffffff8150e9c9>] SYSC_write fs/read_write.c:604 [inline]
 [<ffffffff8150e9c9>] SyS_write+0xd9/0x1c0 fs/read_write.c:596
 [<ffffffff81006311>] do_syscall_32_irqs_on arch/x86/entry/common.c:328 [inline]
 [<ffffffff81006311>] do_fast_syscall_32+0x2f1/0xa10 arch/x86/entry/common.c:390
 [<ffffffff82818de0>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
Kernel Offset: disabled
Rebooting in 86400 seconds..