------------[ cut here ]------------
inode->i_nlink == 0
WARNING: fs/inode.c:418 at drop_nlink+0xc5/0x110 fs/inode.c:418, CPU#1: syz.4.514/10011
Modules linked in:
CPU: 1 UID: 0 PID: 10011 Comm: syz.4.514 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:drop_nlink+0xc5/0x110 fs/inode.c:418
Code: c0 08 00 00 be 08 00 00 00 e8 07 e4 ea ff f0 48 ff 83 c0 08 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 6c bd 84 ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff
RSP: 0018:ffffc90004cd7a10 EFLAGS: 00010283
RAX: ffffffff823fc904 RBX: ffff88805e9452a8 RCX: 0000000000080000
RDX: ffffc9000fce0000 RSI: 000000000000085d RDI: 000000000000085e
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed4e37 R12: 1ffff1100bd28a5e
R13: 0000000000000000 R14: ffff88805e9452f0 R15: dffffc0000000000
FS:  00007fd215ebd6c0(0000) GS:ffff888126435000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0976b70eb8 CR3: 0000000038e60000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 nilfs_rename+0x4ce/0x8a0 fs/nilfs2/namei.c:418
 vfs_rename+0xa96/0xeb0 fs/namei.c:6032
 filename_renameat2+0x539/0x9c0 fs/namei.c:6150
 __do_sys_rename fs/namei.c:6194 [inline]
 __se_sys_rename+0x55/0x2c0 fs/namei.c:6190
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd217c8c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd215ebd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fd217f06090 RCX: 00007fd217c8c819
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000200000000080
RBP: 00007fd217d22c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd217f06128 R14: 00007fd217f06090 R15: 00007ffc3f8b4de8
 </TASK>