------------[ cut here ]------------
WARNING: CPU: 0 PID: 3735 at fs/inode.c:417 drop_nlink+0x82/0xd0 fs/inode.c:417
Modules linked in:
CPU: 0 UID: 0 PID: 3735 Comm: syz.3.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:drop_nlink+0x82/0xd0 fs/inode.c:417
Code: 48 8b 1f 48 8d bb b0 08 00 00 be 08 00 00 00 e8 54 15 f3 ff f0 48 ff 83 b0 08 00 00 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 90 <0f> 0b 90 eb a7 89 d9 80 e1 07 80 c1 03 38 c1 7c 96 49 89 fc 48 89
RSP: 0018:ffffc900037ff2d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88802a21ec88 RCX: ec2e28bb32c35900
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88802a21ec40
RBP: dffffc0000000000 R08: ffffc900037ff287 R09: 1ffff920006ffe50
R10: dffffc0000000000 R11: fffff520006ffe51 R12: 0000000028fe14c5
R13: 000000006927a1dd R14: dffffc0000000000 R15: 1ffff11005443d91
FS:  00007efc9bc0e6c0(0000) GS:ffff8881309dc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efc9bc0df98 CR3: 000000002d1ec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 shmem_unlink+0x19f/0x250 mm/shmem.c:3976
 shmem_rename2+0x1b3/0x2c0 mm/shmem.c:4062
 vfs_rename+0x7c0/0xb50 fs/namei.c:5129
 ovl_do_rename+0x130/0x1d0 fs/overlayfs/overlayfs.h:372
 ovl_create_over_whiteout fs/overlayfs/dir.c:517 [inline]
 ovl_create_or_link+0x600/0x1170 fs/overlayfs/dir.c:623
 ovl_create_object+0x1f0/0x2c0 fs/overlayfs/dir.c:662
 lookup_open fs/namei.c:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0xe56/0x2be0 fs/namei.c:4043
 do_filp_open+0x1e4/0x3c0 fs/namei.c:4073
 do_sys_openat2+0xfa/0x180 fs/open.c:1434
 do_sys_open fs/open.c:1449 [inline]
 __do_sys_openat fs/open.c:1465 [inline]
 __se_sys_openat fs/open.c:1460 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1460
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc9bdbf749
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:00007efc9bc0e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efc9c016090 RCX: 00007efc9bdbf749
RDX: 0000000000105042 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007efc9be43f91 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc9c016128 R14: 00007efc9c016090 R15: 00007ffedabdbde8
 </TASK>