Warning: Permanently added '10.128.0.252' (ECDSA) to the list of known hosts.
executing program
[   66.831238] F2FS-fs (loop0): Corrupted extension count (131109 + 1 > 64)
[   66.838338] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock
[   66.846881] F2FS-fs (loop0): Test dummy encryption mount option ignored
[   66.859150] F2FS-fs (loop0): Found nat_bits in checkpoint
[   66.889504] F2FS-fs (loop0): Try to recover 2th superblock, ret: 0
[   66.895905] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[   66.910702] ------------[ cut here ]------------
[   66.915802] WARNING: CPU: 0 PID: 8110 at fs/inode.c:343 inc_nlink.cold+0x11/0x18
[   66.923339] Kernel panic - not syncing: panic_on_warn set ...
[   66.923339] 
[   66.930714] CPU: 0 PID: 8110 Comm: syz-executor406 Not tainted 4.19.211-syzkaller #0
[   66.938591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   66.947938] Call Trace:
[   66.950513]  dump_stack+0x1fc/0x2ef
[   66.954126]  panic+0x26a/0x50e
[   66.957305]  ? __warn_printk+0xf3/0xf3
[   66.961178]  ? inc_nlink.cold+0x11/0x18
[   66.965139]  ? __probe_kernel_read+0x130/0x1b0
[   66.969706]  ? __warn.cold+0x5/0x5a
[   66.973310]  ? __warn+0xe4/0x200
[   66.976658]  ? inc_nlink.cold+0x11/0x18
[   66.980614]  __warn.cold+0x20/0x5a
[   66.984135]  ? inc_nlink.cold+0x11/0x18
[   66.988092]  report_bug+0x262/0x2b0
[   66.991701]  do_error_trap+0x1d7/0x310
[   66.995567]  ? math_error+0x310/0x310
[   66.999351]  ? __irq_work_queue_local+0x101/0x160
[   67.004182]  ? irq_work_queue+0x29/0x80
[   67.008137]  ? error_entry+0x72/0xd0
[   67.011829]  ? trace_hardirqs_off_caller+0x6e/0x210
[   67.016977]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   67.021803]  invalid_op+0x14/0x20
[   67.025235] RIP: 0010:inc_nlink.cold+0x11/0x18
[   67.029796] Code: c0 74 04 3c 03 7e 08 8b 5d 48 e9 e7 68 b4 f9 4c 89 e7 e8 aa 99 a3 f9 eb ee e8 43 bd 6d f9 48 c7 c7 80 b0 74 88 e8 a2 ee fe ff <0f> 0b e9 29 6a b4 f9 e8 2b bd 6d f9 48 8d 7b 40 b8 ff ff 37 00 48
[   67.048709] RSP: 0018:ffff88809232fa40 EFLAGS: 00010282
[   67.054056] RAX: 0000000000000024 RBX: ffff88808c78c100 RCX: 0000000000000000
[   67.061307] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012465f3a
[   67.068553] RBP: 0000000000000000 R08: 0000000000000024 R09: 0000000000000000
[   67.075801] R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808c78c148
[   67.083048] R13: 0000000000000000 R14: 0000000000004000 R15: ffff88808c78d510
[   67.090312]  ? vprintk_func+0x81/0x180
[   67.094186]  f2fs_update_parent_metadata+0x373/0x400
[   67.099269]  f2fs_add_inline_entry+0x5f5/0x3940
[   67.103920]  ? f2fs_make_empty_inline_dir+0x3c0/0x3c0
[   67.109096]  ? mark_held_locks+0xf0/0xf0
[   67.113141]  ? __lock_acquire+0x6de/0x3ff0
[   67.117365]  ? insert_inode_locked+0x403/0x510
[   67.121935]  ? __dquot_initialize+0x298/0xb70
[   67.126411]  f2fs_add_dentry+0x247/0x2f0
[   67.130455]  ? f2fs_add_regular_entry+0x1560/0x1560
[   67.135451]  ? dquot_initialize_needed+0x290/0x290
[   67.140358]  ? projid_m_show+0x220/0x220
[   67.144402]  f2fs_do_add_link+0x307/0x4f0
[   67.148532]  ? f2fs_add_dentry+0x2f0/0x2f0
[   67.152745]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   67.157749]  ? f2fs_mkdir+0x297/0x610
[   67.161534]  f2fs_mkdir+0x339/0x610
[   67.165141]  ? inode_permission.part.0+0x10c/0x450
[   67.170051]  ? security_inode_mkdir+0xd6/0x100
[   67.174614]  vfs_mkdir+0x508/0x7a0
[   67.178149]  do_mkdirat+0x262/0x2d0
[   67.181761]  ? __ia32_sys_mknod+0x120/0x120
[   67.186064]  ? trace_hardirqs_off_caller+0x6e/0x210
[   67.191060]  ? do_syscall_64+0x21/0x620
[   67.195016]  do_syscall_64+0xf9/0x620
[   67.198797]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   67.203965] RIP: 0033:0x7f7d546baad9
[   67.207662] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   67.226545] RSP: 002b:00007ffc6fcb69a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[   67.234232] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f7d546baad9
[   67.241479] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
[   67.248730] RBP: 00007f7d5467a0e0 R08: 0000000000000000 R09: 0000000000000000
[   67.255978] R10: 00000000000105b4 R11: 0000000000000246 R12: 00007f7d5467a170
[   67.263233] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   67.270778] Kernel Offset: disabled
[   67.274433] Rebooting in 86400 seconds..