BUG: Dentry 000000006e86bb07{i=0,n=.reiserfs_priv}  still in use (1) [unmount of squashfs loop5]
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3074 at fs/dcache.c:1676 umount_check+0xc0/0xc8 fs/dcache.c:1667
Modules linked in:
CPU: 0 PID: 3074 Comm: syz-executor.5 Not tainted 6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/20/2022
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 : ffff80001280bbc0
x29: ffff80001280bbc0 x28: ffff0000f723f868 x27: ffff80000d4e1e20
x26: ffff0000f723f750 x25: 0000000000000001 x24: ffff0000f723f868
x23: ffff0000f723f570 x22: ffff0000f73ff000 x21: ffff8000085edd40
x20: 0000000000000000 x19: ffff0000f723f4e0 x18: 00000000000000c0
x17: 657375206e69206c x16: ffff80000dbb8658 x15: ffff0000c62d3500
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c62d3500
x11: ff808000081c39dc x10: 0000000000000000 x9 : dbe92070a1036700
x8 : dbe92070a1036700 x7 : ffff800008197c8c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefbecd0 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+0x30/0x190 fs/super.c:473
 kill_block_super+0x30/0x78 fs/super.c:1427
 deactivate_locked_super+0x70/0xd4 fs/super.c:332
 deactivate_super+0xb8/0xbc fs/super.c:363
 cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0xc4/0x208 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x174/0x1d0 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:625
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642
 el0t_64_sync+0x18c/0x190
irq event stamp: 1222956
hardirqs last  enabled at (1222955): [<ffff8000081c1c48>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264
hardirqs last disabled at (1222956): [<ffff80000bffe9cc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395
softirqs last  enabled at (1222950): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (1222889): [<ffff800008104658>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1222889): [<ffff800008104658>] invoke_softirq+0x70/0xbc kernel/softirq.c:452
---[ end trace 0000000000000000 ]---
BUG: Dentry 000000006e86bb07{i=0,n=.reiserfs_priv}  still in use (1) [unmount of squashfs loop5]
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3074 at fs/dcache.c:1676 umount_check+0xc0/0xc8 fs/dcache.c:1667
Modules linked in:
CPU: 1 PID: 3074 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/20/2022
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 : ffff80001280bbc0
x29: ffff80001280bbc0 x28: ffff0000f723f868 x27: ffff80000d4e1e20
x26: ffff0000f723f750 x25: 0000000000000001 x24: ffff0000f723f868
x23: ffff0000f723f570 x22: ffff0000f73ff000 x21: ffff8000085edd40
x20: 0000000000000000 x19: ffff0000f723f4e0 x18: 00000000000000c0
x17: 657375206e69206c x16: ffff80000dbb8658 x15: ffff0000c62d3500
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c62d3500
x11: ff808000081c39dc x10: 0000000000000000 x9 : dbe92070a1036700
x8 : dbe92070a1036700 x7 : ffff800008197c8c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000003 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+0x30/0x190 fs/super.c:473
 kill_block_super+0x30/0x78 fs/super.c:1427
 deactivate_locked_super+0x70/0xd4 fs/super.c:332
 deactivate_super+0xb8/0xbc fs/super.c:363
 cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0xc4/0x208 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x174/0x1d0 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:625
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642
 el0t_64_sync+0x18c/0x190
irq event stamp: 1223024
hardirqs last  enabled at (1223023): [<ffff8000081c1c48>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264
hardirqs last disabled at (1223024): [<ffff80000bffe9cc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:395
softirqs last  enabled at (1223000): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (1222959): [<ffff800008104658>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1222959): [<ffff800008104658>] invoke_softirq+0x70/0xbc kernel/softirq.c:452
---[ end trace 0000000000000000 ]---
VFS: Busy inodes after unmount of loop5. Self-destruct in 5 seconds.  Have a nice day...