------------[ cut here ]------------
WARNING: CPU: 1 PID: 28983 at net/ipv4/tcp_timer.c:429 tcp_retransmit_timer+0x1ac5/0x2560 net/ipv4/tcp_timer.c:429
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 28983 Comm: syz-executor.0 Not tainted 4.14.144 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x138/0x197 lib/dump_stack.c:53
 panic+0x1f2/0x426 kernel/panic.c:182
 __warn.cold+0x2f/0x36 kernel/panic.c:546
 report_bug+0x216/0x254 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+0x1bb/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:tcp_retransmit_timer+0x1ac5/0x2560 net/ipv4/tcp_timer.c:429
RSP: 0018:ffff8880aef07c88 EFLAGS: 00010206
RAX: ffff8880676a0700 RBX: ffff8880692a8100 RCX: 0000000000000008
RDX: 0000000000000100 RSI: ffff8880a727480c RDI: ffff8880a72749d8
RBP: ffff8880aef07ce8 R08: 000000c6324ce119 R09: ffff88821fff8048
R10: ffff88821fff8050 R11: 0000000000000001 R12: ffff8880a7274000
R13: ffff8880a727469a R14: ffff8880a7274030 R15: 0000000000000000
 tcp_write_timer_handler+0x479/0x7e0 net/ipv4/tcp_timer.c:579
 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:1102
 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:200
RSP: 0018:ffff8880566b7b80 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0ee2a83 RBX: ffff8880676a0700 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880676a0f7c
RBP: ffff8880566b7b88 R08: ffff8880676a0700 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aef2c500
R13: ffff888085a0e240 R14: 0000000000000000 R15: ffff8880aef2ce58
 finish_lock_switch kernel/sched/sched.h:1350 [inline]
 finish_task_switch+0x178/0x650 kernel/sched/core.c:2674
 context_switch kernel/sched/core.c:2810 [inline]
 __schedule+0x7c0/0x1cd0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x1d7/0x5e0 kernel/time/hrtimer.c:1480
 hrtimer_nanosleep+0x218/0x4a0 kernel/time/hrtimer.c:1534
 SYSC_nanosleep kernel/time/hrtimer.c:1566 [inline]
 SyS_nanosleep+0x11a/0x170 kernel/time/hrtimer.c:1553
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457db1
RSP: 002b:00007ffc7436ac40 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000ce8c8 RCX: 0000000000457db1
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc7436ac50
RBP: 0000000000000001 R08: 000000009aa89adb R09: 000000009aa89adf
R10: 00007ffc7436ad40 R11: 0000000000000293 R12: 000000000075bf20
R13: 000000000075c9a0 R14: 0000000000761138 R15: 000000000075c07c
Kernel Offset: disabled
Rebooting in 86400 seconds..