BUG: Dentry ffff88806fd83490{i=0,n=.reiserfs_priv}  still in use (1) [unmount of minix loop4]
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3643 at fs/dcache.c:1676 umount_check+0x188/0x1d0 fs/dcache.c:1667
Modules linked in:
CPU: 0 PID: 3643 Comm: syz-executor.4 Not tainted 6.0.0-syzkaller-06205-gffb39098bf87 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:umount_check+0x188/0x1d0 fs/dcache.c:1676
Code: ff 4c 8b 0b 48 81 c5 a8 06 00 00 48 c7 c7 40 da bc 8a 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 53 b5 48 08 48 83 c4 08 <0f> 0b e9 f4 fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c cb fe ff
RSP: 0018:ffffc9000459fce8 EFLAGS: 00010286
RAX: 000000000000005d RBX: ffffffff8ceed020 RCX: 56aabd62f329cb00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff88808fcac6a8 R08: ffffffff816c58bd R09: ffffed10173467f1
R10: ffffed10173467f1 R11: 1ffff110173467f0 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88806fd83490
FS:  0000555556044400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4c0a0e53be CR3: 000000003f1fe000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 d_walk+0x1e3/0x6d0 fs/dcache.c:1386
 do_one_tree fs/dcache.c:1683 [inline]
 shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1699
 generic_shutdown_super+0x63/0x310 fs/super.c:472
 kill_block_super+0x79/0xd0 fs/super.c:1427
 deactivate_locked_super+0xa7/0xf0 fs/super.c:331
 cleanup_mnt+0x4ce/0x560 fs/namespace.c:1186
 task_work_run+0x146/0x1c0 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcc9488ba17
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffce7c83708 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcc9488ba17
RDX: 00007ffce7c837dc RSI: 000000000000000a RDI: 00007ffce7c837d0
RBP: 00007ffce7c837d0 R08: 00000000ffffffff R09: 00007ffce7c835a0
R10: 0000555556045873 R11: 0000000000000246 R12: 00007fcc948e45f6
R13: 00007ffce7c84890 R14: 0000555556045810 R15: 00007ffce7c848d0
 </TASK>