------------[ cut here ]------------
kernel BUG at ./include/linux/skbuff.h:1406!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 9856 Comm: syz-executor631 Not tainted 4.14.139 #35
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88807fee8080 task.stack: ffff888089d18000
RIP: 0010:skb_queue_prev include/linux/skbuff.h:1406 [inline]
RIP: 0010:tcp_write_queue_prev include/net/tcp.h:1653 [inline]
RIP: 0010:tcp_write_queue_prev include/net/tcp.h:1650 [inline]
RIP: 0010:tcp_rtx_queue_tail include/net/tcp.h:1708 [inline]
RIP: 0010:tcp_fragment+0x12a7/0x13e0 net/ipv4/tcp_output.c:1284
RSP: 0018:ffff8880aef07c00 EFLAGS: 00010206
RAX: ffff88807fee8080 RBX: ffff888085acc080 RCX: 1ffff11015081ae9
RDX: 0000000000000100 RSI: ffff888085acc080 RDI: ffff888085acc088
RBP: ffff8880aef07c58 R08: 0000000001080020 R09: ffff888085acc0a8
R10: ffff88821fff8050 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000006880 R14: ffff8880a840d750 R15: 0000000001080020
FS:  0000000001538880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000484 CR3: 000000007fc17000 CR4: 00000000001406e0
Call Trace:
 <IRQ>
 tcp_write_wakeup+0x34c/0x5b0 net/ipv4/tcp_output.c:3708
 tcp_send_probe0+0x4b/0x3fe net/ipv4/tcp_output.c:3736
 tcp_probe_timer net/ipv4/tcp_timer.c:365 [inline]
 tcp_write_timer_handler+0x6da/0x7e0 net/ipv4/tcp_timer.c:583
 tcp_write_timer+0xd8/0x180 net/ipv4/tcp_timer.c:597
 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
 expire_timers kernel/time/timer.c:1318 [inline]
 __run_timers kernel/time/timer.c:1634 [inline]
 __run_timers kernel/time/timer.c:1602 [inline]
 run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647
 __do_softirq+0x244/0x9a0 kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x160/0x1b0 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1064
 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:192
RSP: 0018:ffff888089d1fa10 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0ee2a59 RBX: 0000000000000286 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286
RBP: ffff888089d1fa20 R08: ffff88807fee8080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809287a8c0
R13: ffff88809287a100 R14: 0000000000000001 R15: ffff8880aef2c518
 try_to_wake_up+0xa8/0xf90 kernel/sched/core.c:2090
 wake_up_process kernel/sched/core.c:2159 [inline]
 wake_up_q+0x95/0xf0 kernel/sched/core.c:467
 futex_wake+0x38b/0x430 kernel/futex.c:1634
 do_futex+0x290/0x19e0 kernel/futex.c:3667
 SYSC_futex kernel/futex.c:3723 [inline]
 SyS_futex+0x215/0x302 kernel/futex.c:3691
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x446d39
RSP: 002b:00007fff77448268 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000000f4f5 RCX: 0000000000446d39
RDX: 0000000000446d39 RSI: 0000000000000081 RDI: 00000000006dcc28
RBP: 00000000006dcc2c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc20
R13: 0000000000000000 R14: 20c49ba5e353f7cf R15: 0000000000000002
Code: 3c 02 00 0f 85 4f 01 00 00 48 8b 45 d0 ba 00 00 00 00 4c 8b b0 58 02 00 00 4c 3b 75 c0 4c 0f 44 f2 e9 e6 fc ff ff e8 49 72 35 fc <0f> 0b e8 a2 1f 5f fc e9 31 fa ff ff 48 89 df e8 f5 1e 5f fc e9 
RIP: skb_queue_prev include/linux/skbuff.h:1406 [inline] RSP: ffff8880aef07c00
RIP: tcp_write_queue_prev include/net/tcp.h:1653 [inline] RSP: ffff8880aef07c00
RIP: tcp_write_queue_prev include/net/tcp.h:1650 [inline] RSP: ffff8880aef07c00
RIP: tcp_rtx_queue_tail include/net/tcp.h:1708 [inline] RSP: ffff8880aef07c00
RIP: tcp_fragment+0x12a7/0x13e0 net/ipv4/tcp_output.c:1284 RSP: ffff8880aef07c00
---[ end trace 641dbfcccf84f6ae ]---