BUG: Dentry 0000000007f62ffb{i=0,n=.reiserfs_priv}  still in use (1) [unmount of squashfs loop3]
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WARNING: CPU: 1 PID: 3123 at fs/dcache.c:1676 umount_check+0xc0/0xc8 fs/dcache.c:1667
Modules linked in:
CPU: 1 PID: 3123 Comm: syz-executor.3 Not tainted 6.1.0-rc2-syzkaller-154433-g247f34f7b803 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : umount_check+0xc0/0xc8 fs/dcache.c:1667
lr : umount_check+0xc0/0xc8 fs/dcache.c:1667
sp : ffff800012d9bbc0
x29: ffff800012d9bbc0 x28: ffff000101acdfb8 x27: ffff80000d4e5380
x26: ffff000101acdea0 x25: 0000000000000001 x24: ffff000101acdfb8
x23: ffff000101b99b88 x22: ffff0001098864e0 x21: ffff8000085f7f88
x20: 0000000000000000 x19: ffff000101b99af8 x18: 00000000000003f5
x17: 657375206e69206c x16: 6c69747320207d76 x15: 6972705f73667265
x14: 736965722e3d6e2c x13: 205d333231335420 x12: 5b5d353335373637
x11: ff808000081c650c x10: 0000000000000000 x9 : 3a7a88fd9fd14f00
x8 : 3a7a88fd9fd14f00 x7 : 205b5d3533353736 x6 : ffff80000c0903b4
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000002 x0 : 0000000000000060
Call trace:
 umount_check+0xc0/0xc8 fs/dcache.c:1667
 d_walk+0x13c/0x55c fs/dcache.c:1386
 do_one_tree fs/dcache.c:1683 [inline]
 shrink_dcache_for_umount+0x60/0x140 fs/dcache.c:1699
 generic_shutdown_super+0x30/0x198 fs/super.c:472
 kill_block_super+0x30/0x78 fs/super.c:1427
 deactivate_locked_super+0x70/0xe8 fs/super.c:331
 deactivate_super+0xd0/0xd4 fs/super.c:362
 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x100/0x148 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<ffff8000080f30f0>] copy_process+0x928/0x16ec kernel/fork.c:2197
softirqs last  enabled at (0): [<ffff8000080f3100>] copy_process+0x938/0x16ec kernel/fork.c:2198
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---
BUG: Dentry 0000000007f62ffb{i=0,n=.reiserfs_priv}  still in use (1) [unmount of squashfs loop3]
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3123 at fs/dcache.c:1676 umount_check+0xc0/0xc8 fs/dcache.c:1667
Modules linked in:
CPU: 0 PID: 3123 Comm: syz-executor.3 Tainted: G        W          6.1.0-rc2-syzkaller-154433-g247f34f7b803 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : umount_check+0xc0/0xc8 fs/dcache.c:1667
lr : umount_check+0xc0/0xc8 fs/dcache.c:1667
sp : ffff800012d9bbc0
x29: ffff800012d9bbc0 x28: ffff000101acdfb8 x27: ffff80000d4e5380
x26: ffff000101acdea0 x25: 0000000000000001 x24: ffff000101acdfb8
x23: ffff000101b99b88 x22: ffff0001098864e0 x21: ffff8000085f7f88
x20: 0000000000000000 x19: ffff000101b99af8 x18: 000000000000000e
x17: 657375206e69206c x16: 6c69747320207d76 x15: 6972705f73667265
x14: 736965722e3d6e2c x13: 205d333231335420 x12: 5b5d373734393538
x11: ff808000081c650c x10: 0000000000000000 x9 : 3a7a88fd9fd14f00
x8 : 3a7a88fd9fd14f00 x7 : 205b5d3737343935 x6 : ffff80000c0903b4
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefbecc8 x1 : 0000000000000003 x0 : 0000000000000060
Call trace:
 umount_check+0xc0/0xc8 fs/dcache.c:1667
 d_walk+0x13c/0x55c fs/dcache.c:1386
 do_one_tree fs/dcache.c:1683 [inline]
 shrink_dcache_for_umount+0x60/0x140 fs/dcache.c:1699
 generic_shutdown_super+0x30/0x198 fs/super.c:472
 kill_block_super+0x30/0x78 fs/super.c:1427
 deactivate_locked_super+0x70/0xe8 fs/super.c:331
 deactivate_super+0xd0/0xd4 fs/super.c:362
 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x100/0x148 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<ffff8000080f30f0>] copy_process+0x928/0x16ec kernel/fork.c:2197
softirqs last  enabled at (0): [<ffff8000080f3100>] copy_process+0x938/0x16ec kernel/fork.c:2198
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---
VFS: Busy inodes after unmount of loop3. Self-destruct in 5 seconds.  Have a nice day...