invalid inflight: 1 state 4 cwnd 10 mss 1428
------------[ cut here ]------------
WARNING: CPU: 1 PID: 16078 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: 1 PID: 16078 Comm: syz-executor.5 Not tainted 4.14.144 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop4' (ffff8880a4ab0aa0): kobject_uevent_env
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
kobject: 'loop4' (ffff8880a4ab0aa0): fill_kobj_path: path = '/devices/virtual/block/loop4'
 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:ffff8880aef07cb8 EFLAGS: 00010282
RAX: 000000000000002c RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff866d10e0 RDI: ffffed1015de0f8d
RBP: ffff8880aef07ce8 R08: 000000000000002c R09: ffff888056286998
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880696bea80
R13: 0000000000000001 R14: 0000000000000594 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
 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
SELinux:  policydb string length 65333 does not match expected length 8
 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:__sanitizer_cov_trace_pc+0x29/0x60 kernel/kcov.c:56
RSP: 0018:ffff888076687890 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffff888056286080 RBX: ffff88812fffb3c0 RCX: ffffc9000a24f000
RDX: 0000000000000001 RSI: ffffffff8149ffdd RDI: 00000000000f4757
RBP: ffff8880766878b0 R08: 0000000000000035 R09: ffff888056286948
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88812fffb000
R13: ffff88821fff0000 R14: ffff88821fffd940 R15: ffff8880757bf0b8
 mark_nosave_pages kernel/power/snapshot.c:1048 [inline]
 create_basic_memory_bitmaps.cold+0x93/0xe1 kernel/power/snapshot.c:1096
SELinux: failed to load policy
 snapshot_open+0x378/0x400 kernel/power/user.c:91
 misc_open+0x34f/0x480 drivers/char/misc.c:154
 chrdev_open+0x207/0x590 fs/char_dev.c:423
 do_dentry_open+0x73b/0xeb0 fs/open.c:777
 vfs_open+0x105/0x220 fs/open.c:891
 do_last fs/namei.c:3425 [inline]
 path_openat+0x8bd/0x3f70 fs/namei.c:3566
 do_filp_open+0x18e/0x250 fs/namei.c:3600
 do_sys_open+0x2c5/0x430 fs/open.c:1084
 SYSC_openat fs/open.c:1111 [inline]
 SyS_openat+0x30/0x40 fs/open.c:1105
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4598e9
RSP: 002b:00007f70c0a6ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004598e9
RDX: 0000000000000001 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f70c0a6b6d4
R13: 00000000004c64fe R14: 00000000004db478 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..