invalid inflight: 1 state 4 cwnd 10 mss 21845
------------[ cut here ]------------
WARNING: CPU: 0 PID: 13213 at net/ipv4/tcp_output.c:2507 tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 13213 Comm: udevd Not tainted 4.14.143 #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_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507
RSP: 0018:ffff8880aee07cb8 EFLAGS: 00010282
RAX: 000000000000002d RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff866d10e0 RDI: ffffed1015dc0f8d
RBP: ffff8880aee07ce8 R08: 000000000000002d R09: ffff8880678aed70
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888091684c00
R13: 0000000000000001 R14: 0000000000005555 R15: 000000000000000a
 tcp_write_timer_handler+0x4a8/0x7e0 net/ipv4/tcp_timer.c:575
 tcp_write_timer+0xd8/0x180 net/ipv4/tcp_timer.c:597
kobject: 'brif' (ffff88807dff1400): kobject_cleanup, parent ffff88805aff08b0
 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:lookup_fast+0x14e/0xf10 fs/namei.c:1605
RSP: 0018:ffff88807b3477e0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffff8880a45bb270 RBX: ffff88807b347960 RCX: 1ffff1100f668f28
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: ffff888218421398
RBP: ffff88807b347890 R08: ffff8880678ae480 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000003 R12: ffff88807b347b90
R13: ffff888218421340 R14: ffff8882184211e0 R15: ffff88807b347868
kobject: 'brif' (ffff88807dff1400): auto cleanup kobject_del
 walk_component+0xcf/0x1d00 fs/namei.c:1820
 link_path_walk+0x81f/0x10a0 fs/namei.c:2153
kobject: 'brif' (ffff88807dff1400): calling ktype release
 path_lookupat.isra.0+0xcb/0x7b0 fs/namei.c:2341
 filename_lookup+0x18e/0x380 fs/namei.c:2376
 user_path_at_empty+0x43/0x50 fs/namei.c:2630
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0xcd/0x160 fs/stat.c:185
 vfs_stat include/linux/fs.h:3060 [inline]
 SYSC_newstat+0x95/0x100 fs/stat.c:337
kobject: (ffff88807dff1400): dynamic_kobj_release
 SyS_newstat+0x1e/0x30 fs/stat.c:333
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7fd96d1bcc65
RSP: 002b:00007fffe15b2918 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000702 RCX: 00007fd96d1bcc65
RDX: 00007fffe15b2980 RSI: 00007fffe15b2980 RDI: 00007fffe15b3210
RBP: 00000000000003e9 R08: 00000000018b1e90 R09: 00007fd96d2133d0
R10: 7269762f73656369 R11: 0000000000000246 R12: 00000000018b1e90
R13: 0000000000000001 R14: 0000000000000000 R15: 00000000018dba89
Kernel Offset: disabled
Rebooting in 86400 seconds..