IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready
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WARNING: CPU: 0 PID: 14177 at fs/ext4/page-io.c:205 ext4_add_complete_io fs/ext4/page-io.c:205 [inline]
WARNING: CPU: 0 PID: 14177 at fs/ext4/page-io.c:205 ext4_put_io_end_defer+0x2bb/0x3b0 fs/ext4/page-io.c:268
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 14177 Comm: syz-executor0 Not tainted 4.9.128+ #42
 ffff8801db607a48 ffffffff81b2b9e9 ffffffff82a38c20 00000000ffffffff
 0000000000000000 0000000000000000 00000000000000cd ffff8801db607b08
 ffffffff813f6665 0000000041b58ab3 ffffffff82e289c3 ffffffff813f64a6
Call Trace:
 <IRQ> [  217.459351]  [<ffffffff81b2b9e9>] __dump_stack lib/dump_stack.c:15 [inline]
 <IRQ> [  217.459351]  [<ffffffff81b2b9e9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff813f6665>] panic+0x1bf/0x39f kernel/panic.c:179
 [<ffffffff813f6934>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff810dbc7c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff816e87ab>] ext4_add_complete_io fs/ext4/page-io.c:205 [inline]
 [<ffffffff816e87ab>] ext4_put_io_end_defer+0x2bb/0x3b0 fs/ext4/page-io.c:268
 [<ffffffff816e89d6>] ext4_end_bio+0x136/0x460 fs/ext4/page-io.c:324
 [<ffffffff81a9eae5>] bio_endio+0x1a5/0x1f0 block/bio.c:1781
 [<ffffffff81abf148>] req_bio_endio block/blk-core.c:157 [inline]
 [<ffffffff81abf148>] blk_update_request+0x248/0x9b0 block/blk-core.c:2628
 [<ffffffff81e04f3d>] scsi_end_request+0x9d/0x5c0 drivers/scsi/scsi_lib.c:606
 [<ffffffff81e0df43>] scsi_io_completion+0x273/0x17a0 drivers/scsi/scsi_lib.c:829
 [<ffffffff81df0e6a>] scsi_finish_command+0x3ba/0x530 drivers/scsi/scsi.c:607
 [<ffffffff81e0c470>] scsi_softirq_done+0x250/0x360 drivers/scsi/scsi_lib.c:1567
 [<ffffffff81add00d>] blk_done_softirq+0x27d/0x3e0 block/blk-softirq.c:35
 [<ffffffff827fd140>] __do_softirq+0x210/0x940 kernel/softirq.c:288
 [<ffffffff810ef974>] invoke_softirq kernel/softirq.c:368 [inline]
 [<ffffffff810ef974>] irq_exit+0x114/0x150 kernel/softirq.c:409
 [<ffffffff827fa15d>] exiting_irq arch/x86/include/asm/apic.h:669 [inline]
 [<ffffffff827fa15d>] do_IRQ+0x10d/0x1c0 arch/x86/kernel/irq.c:252
 [<ffffffff827f875d>] common_interrupt+0x9d/0x9d arch/x86/entry/entry_64.S:461
 <EOI> [  217.657978]  [<ffffffff823dd6c8>] ? get_next_corpse net/netfilter/nf_conntrack_core.c:1547 [inline]
 <EOI> [  217.657978]  [<ffffffff823dd6c8>] ? nf_ct_iterate_cleanup+0x238/0x480 net/netfilter/nf_conntrack_core.c:1618
 [<ffffffff823dd6ef>] local_bh_enable include/linux/bottom_half.h:31 [inline]
 [<ffffffff823dd6ef>] get_next_corpse net/netfilter/nf_conntrack_core.c:1562 [inline]
 [<ffffffff823dd6ef>] nf_ct_iterate_cleanup+0x25f/0x480 net/netfilter/nf_conntrack_core.c:1618
 [<ffffffff825ebae8>] masq_device_event+0xa8/0xd0 net/ipv4/netfilter/nf_nat_masquerade_ipv4.c:100
 [<ffffffff811473c4>] notifier_call_chain+0xb4/0x1d0 kernel/notifier.c:93
 [<ffffffff8114754d>] __raw_notifier_call_chain kernel/notifier.c:394 [inline]
 [<ffffffff8114754d>] raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401
 [<ffffffff822d6795>] call_netdevice_notifiers_info+0x55/0x70 net/core/dev.c:1647
 [<ffffffff822d7434>] call_netdevice_notifiers net/core/dev.c:1663 [inline]
 [<ffffffff822d7434>] dev_close_many+0x2e4/0x6a0 net/core/dev.c:1456
 [<ffffffff822e4e7c>] rollback_registered_many+0x3ac/0xb50 net/core/dev.c:6810
 [<ffffffff822e570e>] rollback_registered+0xee/0x1b0 net/core/dev.c:6873
 [<ffffffff822ef2ca>] unregister_netdevice_queue+0x1aa/0x230 net/core/dev.c:7860
 [<ffffffff81eba521>] unregister_netdevice include/linux/netdevice.h:2458 [inline]
 [<ffffffff81eba521>] __tun_detach+0x821/0xa00 drivers/net/tun.c:575
 [<ffffffff81eba744>] tun_detach drivers/net/tun.c:585 [inline]
 [<ffffffff81eba744>] tun_chr_close+0x44/0x60 drivers/net/tun.c:2390
 [<ffffffff8150fef3>] __fput+0x263/0x700 fs/file_table.c:208
 [<ffffffff81510415>] ____fput+0x15/0x20 fs/file_table.c:244
 [<ffffffff8113d73c>] task_work_run+0x10c/0x180 kernel/task_work.c:116
 [<ffffffff81003e49>] tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 [<ffffffff81003e49>] exit_to_usermode_loop+0x129/0x150 arch/x86/entry/common.c:162
 [<ffffffff81005932>] prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 [<ffffffff81005932>] syscall_return_slowpath arch/x86/entry/common.c:263 [inline]
 [<ffffffff81005932>] do_syscall_64+0x3e2/0x550 arch/x86/entry/common.c:290
 [<ffffffff827f7e53>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..