F2FS-fs (loop1): Found nat_bits in checkpoint
F2FS-fs (loop1): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 0 PID: 19010 at fs/inode.c:407 drop_nlink+0xc4/0x110 fs/inode.c:407
Modules linked in:
CPU: 0 UID: 0 PID: 19010 Comm: syz.1.4517 Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:drop_nlink+0xc4/0x110 fs/inode.c:407
Code: bb 70 07 00 00 be 08 00 00 00 e8 c7 dc e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d e9 8d 67 d6 09 e8 5d 29 7b ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
RSP: 0018:ffffc90010207b98 EFLAGS: 00010287
RAX: ffffffff8219d983 RBX: 1ffff1100910ab03 RCX: 0000000000080000
RDX: ffffc900285b2000 RSI: 0000000000000c64 RDI: 0000000000000c65
RBP: 0000000000000000 R08: ffffffff8219d903 R09: 1ffffffff203c906
R10: dffffc0000000000 R11: fffffbfff203c907 R12: ffff888048855818
R13: dffffc0000000000 R14: ffff8880488557d0 R15: dffffc0000000000
FS:  00007ff74d9d76c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c45aea0 CR3: 0000000074f8c000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 f2fs_i_links_write fs/f2fs/f2fs.h:3127 [inline]
 f2fs_drop_nlink+0xd6/0x380 fs/f2fs/dir.c:822
 f2fs_unlink+0x47f/0x960 fs/f2fs/namei.c:572
 vfs_unlink+0x367/0x650 fs/namei.c:4523
 do_unlinkat+0x4ae/0x830 fs/namei.c:4587
 __do_sys_unlinkat fs/namei.c:4630 [inline]
 __se_sys_unlinkat fs/namei.c:4623 [inline]
 __x64_sys_unlinkat+0xcc/0xf0 fs/namei.c:4623
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff74cb7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff74d9d7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 00007ff74cd35fa0 RCX: 00007ff74cb7e819
RDX: 0000000000000000 RSI: 0000000020000380 RDI: ffffffffffffff9c
RBP: 00007ff74cbf175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff74cd35fa0 R15: 00007ffc5aadf5d8
 </TASK>