ip6_tunnel: ip6tnl2 xmit: Local address not yet configured!
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
ip6_tunnel: O xmit: Local address not yet configured!
invalid inflight: 1 state 4 cwnd 10 mss 1428
------------[ cut here ]------------
WARNING: CPU: 0 PID: 23643 at net/ipv4/tcp_output.c:2507 tcp_send_loss_probe.cold+0x7e/0x94 net/ipv4/tcp_output.c:2507
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 23643 Comm: syz-executor.3 Not tainted 4.14.144+ #0
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xca/0x134 lib/dump_stack.c:53
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'.
 panic+0x1ea/0x3d3 kernel/panic.c:182
 __warn.cold+0x2f/0x3a kernel/panic.c:546
 report_bug+0x20a/0x248 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bf/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x18/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:tcp_send_loss_probe.cold+0x7e/0x94 net/ipv4/tcp_output.c:2507
RSP: 0018:ffff8881dba07ca8 EFLAGS: 00010286
RAX: 000000000000002c RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8881addf3780 RDI: ffffed103b740f87
RBP: ffff8881d1c07380 R08: 000000000000002c R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000594
R13: 0000000000000001 R14: 000000000000000a R15: ffff8881d1c07380
 tcp_write_timer_handler+0x46b/0x780 net/ipv4/tcp_timer.c:575
 tcp_write_timer+0xc9/0x170 net/ipv4/tcp_timer.c:597
 call_timer_fn+0x15b/0x6a0 kernel/time/timer.c:1279
 expire_timers+0x227/0x4c0 kernel/time/timer.c:1318
 __run_timers kernel/time/timer.c:1634 [inline]
 run_timer_softirq+0x1eb/0x5d0 kernel/time/timer.c:1647
 __do_softirq+0x234/0x9ec kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x114/0x150 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x1a7/0x650 arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:deref_stack_reg+0x1b/0xe0 arch/x86/kernel/unwind_orc.c:288
RSP: 0018:ffff8881a89df1f8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffff8881a89df698 RBX: ffff8881a89df2f0 RCX: 0000000000000001
RDX: 0000000000000008 RSI: ffff8881a89df690 RDI: ffff8881a89df2f0
RBP: ffff8881a89df690 R08: ffffffffba3b3a8c R09: ffff8881a89df5f0
R10: ffff8881a89df325 R11: 000000000001c033 R12: ffff8881a89df338
R13: dffffc0000000000 R14: ffff8881a89df338 R15: 0000000000000001
 unwind_next_frame+0x86d/0x1810 arch/x86/kernel/unwind_orc.c:425
 __save_stack_trace+0x7a/0xf0 arch/x86/kernel/stacktrace.c:44
 save_stack mm/kasan/common.c:76 [inline]
 set_track mm/kasan/common.c:85 [inline]
 __kasan_kmalloc.part.0+0x53/0xc0 mm/kasan/common.c:495
 slab_post_alloc_hook mm/slab.h:439 [inline]
 slab_alloc_node mm/slub.c:2792 [inline]
 slab_alloc mm/slub.c:2800 [inline]
 kmem_cache_alloc+0xee/0x360 mm/slub.c:2805
 kmem_cache_alloc_node include/linux/slab.h:361 [inline]
 __alloc_skb+0xea/0x5c0 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 __tcp_send_ack.part.0+0x67/0x580 net/ipv4/tcp_output.c:3610
 __tcp_send_ack net/ipv4/tcp_output.c:3637 [inline]
 tcp_send_ack+0x6f/0x90 net/ipv4/tcp_output.c:3637
 tcp_send_challenge_ack.isra.0+0x1ad/0x260 net/ipv4/tcp_input.c:3491
 tcp_validate_incoming+0x504/0x1390 net/ipv4/tcp_input.c:5376
 tcp_rcv_state_process+0xa03/0x4a4d net/ipv4/tcp_input.c:5976
 tcp_v4_do_rcv+0x2eb/0x700 net/ipv4/tcp_ipv4.c:1489
 sk_backlog_rcv include/net/sock.h:912 [inline]
 __release_sock+0x149/0x370 net/core/sock.c:2259
 release_sock+0x54/0x1b0 net/core/sock.c:2774
 inet_wait_for_connect net/ipv4/af_inet.c:555 [inline]
 __inet_stream_connect+0x4ad/0xbb0 net/ipv4/af_inet.c:641
 tcp_sendmsg_fastopen net/ipv4/tcp.c:1170 [inline]
 tcp_sendmsg_locked+0x1fea/0x2f50 net/ipv4/tcp.c:1216
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457
 inet_sendmsg+0x15b/0x520 net/ipv4/af_inet.c:760
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb7/0x100 net/socket.c:656
 SYSC_sendto net/socket.c:1763 [inline]
 SyS_sendto+0x1de/0x2f0 net/socket.c:1731
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4598e9
RSP: 002b:00007fbf73b60c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00000000004598e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000020000000 R09: 0000000000000010
R10: 0000000020000804 R11: 0000000000000246 R12: 00007fbf73b616d4
R13: 00000000004c7874 R14: 00000000004dd170 R15: 00000000ffffffff
Kernel Offset: 0x36800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..