BUG: Dentry ffff88807781f8f8{i=0,n=.reiserfs_priv}  still in use (1) [unmount of minix loop1]
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WARNING: CPU: 0 PID: 8644 at fs/dcache.c:1676 umount_check+0x18c/0x1d0 fs/dcache.c:1667
Modules linked in:
CPU: 0 PID: 8644 Comm: syz-executor.1 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:umount_check+0x18c/0x1d0 fs/dcache.c:1676
Code: 9a e9 ff 4c 8b 0b 48 81 c5 a8 06 00 00 48 c7 c7 a0 f6 f6 8a 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 55 e8 38 40 a8 08 48 83 c4 08 <0f> 0b e9 f5 fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c cc fe ff
RSP: 0000:ffffc900032cfbd8 EFLAGS: 00010286
RAX: 000000000000005d RBX: ffffffff8d0ff680 RCX: 08b36695ff1fd900
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff8880320fe6a8 R08: ffffffff816de46c R09: fffff52000659f31
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88807781f8f8
FS:  0000555556bdd400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84d22d56be CR3: 0000000027c32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 d_walk+0x1f9/0x6c0 fs/dcache.c:1386
 do_one_tree+0x35/0xe0 fs/dcache.c:1683
 shrink_dcache_for_umount+0x7d/0x120 fs/dcache.c:1699
 generic_shutdown_super+0x67/0x340 fs/super.c:472
 kill_block_super+0x7e/0xe0 fs/super.c:1407
 deactivate_locked_super+0xa4/0x110 fs/super.c:331
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177
 task_work_run+0x24a/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f16c328d567
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:00007ffc2d029628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f16c328d567
RDX: 00007ffc2d0296fb RSI: 000000000000000a RDI: 00007ffc2d0296f0
RBP: 00007ffc2d0296f0 R08: 00000000ffffffff R09: 00007ffc2d0294c0
R10: 0000555556bde8b3 R11: 0000000000000246 R12: 00007f16c32e6b74
R13: 00007ffc2d02a7b0 R14: 0000555556bde810 R15: 00007ffc2d02a7f0
 </TASK>