------------[ cut here ]------------
WARNING: CPU: 0 PID: 2983 at net/core/dev.c:2589 skb_warn_bad_offload+0x2a9/0x380 net/core/dev.c:2584
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2983 Comm: syzkaller162878 Not tainted 4.14.0-rc2+ #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 panic+0x1e4/0x417 kernel/panic.c:181
 __warn+0x1c4/0x1d9 kernel/panic.c:542
 report_bug+0x211/0x2d0 lib/bug.c:183
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:178
 do_trap_no_signal arch/x86/kernel/traps.c:212 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:261
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:298
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:311
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
RIP: 0010:skb_warn_bad_offload+0x2a9/0x380 net/core/dev.c:2584
RSP: 0018:ffff8801ce106ec8 EFLAGS: 00010282
RAX: 000000000000006f RBX: ffff8801cdd12da0 RCX: 0000000000000000
RDX: 000000000000006f RSI: 1ffff10039c20d99 RDI: ffffed0039c20dcd
RBP: ffff8801ce106f20 R08: ffff8801ce1065b8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801ce1f82c0
R13: 0000000000000000 R14: ffff8801ce1f82c0 R15: 0000000000002111
 __skb_gso_segment+0x607/0x7f0 net/core/dev.c:2795
 skb_gso_segment include/linux/netdevice.h:3951 [inline]
 validate_xmit_skb+0x4ba/0xb20 net/core/dev.c:3045
 validate_xmit_skb_list+0xb7/0x120 net/core/dev.c:3096
 sch_direct_xmit+0x3b6/0x6d0 net/sched/sch_generic.c:181
 __dev_xmit_skb net/core/dev.c:3177 [inline]
 __dev_queue_xmit+0x16c6/0x2050 net/core/dev.c:3444
 dev_queue_xmit+0x17/0x20 net/core/dev.c:3509
 packet_snd net/packet/af_packet.c:2956 [inline]
 packet_sendmsg+0x3bbd/0x6030 net/packet/af_packet.c:2981
 sock_sendmsg_nosec net/socket.c:633 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:643
 ___sys_sendmsg+0x75b/0x8a0 net/socket.c:2049
 __sys_sendmsg+0xe5/0x210 net/socket.c:2083
 C_SYSC_sendmsg net/compat.c:739 [inline]
 compat_SyS_sendmsg+0x2a/0x40 net/compat.c:737
 do_syscall_32_irqs_on arch/x86/entry/common.c:329 [inline]
 do_fast_syscall_32+0x3f2/0xf05 arch/x86/entry/common.c:391
 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
RIP: 0023:0xf7fcac79
RSP: 002b:000000000820fe4c EFLAGS: 00000202 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000207fcfc8
RDX: 0000000000004010 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000cdf3 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..