======================================================
WARNING: possible circular locking dependency detected
4.19.38 #6 Not tainted
------------------------------------------------------
syz-executor.5/5742 is trying to acquire lock:
0000000066f65f86 (&acct->lock#2){+.+.}, at: acct_pin_kill+0x27/0x100 kernel/acct.c:173

but task is already holding lock:
00000000d60061f8 (sb_writers#4){.+.+}, at: sb_start_write include/linux/fs.h:1575 [inline]
00000000d60061f8 (sb_writers#4){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (sb_writers#4){.+.+}:
       percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline]
       percpu_down_read include/linux/percpu-rwsem.h:59 [inline]
       __sb_start_write+0x20b/0x360 fs/super.c:1387
       sb_start_write include/linux/fs.h:1575 [inline]
       mnt_want_write+0x3f/0xc0 fs/namespace.c:360
       ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24
       ovl_link+0x7c/0x2d5 fs/overlayfs/dir.c:674
       vfs_link+0x7a4/0xb60 fs/namei.c:4240
       do_linkat+0x550/0x770 fs/namei.c:4308
       __do_sys_link fs/namei.c:4337 [inline]
       __se_sys_link fs/namei.c:4335 [inline]
       __x64_sys_link+0x61/0x80 fs/namei.c:4335
       do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (&ovl_i_mutex_key[depth]#2){+.+.}:
       down_write+0x38/0x90 kernel/locking/rwsem.c:70
       inode_lock include/linux/fs.h:744 [inline]
       ovl_write_iter+0x148/0xc20 fs/overlayfs/file.c:231
       call_write_iter include/linux/fs.h:1817 [inline]
       new_sync_write fs/read_write.c:474 [inline]
       __vfs_write+0x58e/0x820 fs/read_write.c:487
       __kernel_write+0x110/0x390 fs/read_write.c:506
       do_acct_process+0xd37/0x1150 kernel/acct.c:520
       acct_pin_kill+0x2f/0x100 kernel/acct.c:174
       pin_kill+0x18f/0x860 fs/fs_pin.c:50
       acct_on+0x574/0x790 kernel/acct.c:254
kobject: 'loop3' (000000006956267e): kobject_uevent_env
       __do_sys_acct kernel/acct.c:286 [inline]
       __se_sys_acct kernel/acct.c:273 [inline]
       __x64_sys_acct+0xae/0x200 kernel/acct.c:273
       do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&acct->lock#2){+.+.}:
       lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
       acct_pin_kill+0x27/0x100 kernel/acct.c:173
       pin_kill+0x18f/0x860 fs/fs_pin.c:50
       acct_on+0x574/0x790 kernel/acct.c:254
       __do_sys_acct kernel/acct.c:286 [inline]
       __se_sys_acct kernel/acct.c:273 [inline]
       __x64_sys_acct+0xae/0x200 kernel/acct.c:273
       do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
  &acct->lock#2 --> &ovl_i_mutex_key[depth]#2 --> sb_writers#4

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(sb_writers#4);
                               lock(&ovl_i_mutex_key[depth]#2);
                               lock(sb_writers#4);
  lock(&acct->lock#2);

 *** DEADLOCK ***

2 locks held by syz-executor.5/5742:
 #0: 000000003a2cd657 (acct_on_mutex){+.+.}, at: __do_sys_acct kernel/acct.c:285 [inline]
 #0: 000000003a2cd657 (acct_on_mutex){+.+.}, at: __se_sys_acct kernel/acct.c:273 [inline]
 #0: 000000003a2cd657 (acct_on_mutex){+.+.}, at: __x64_sys_acct+0xa6/0x200 kernel/acct.c:273
 #1: 00000000d60061f8 (sb_writers#4){.+.+}, at: sb_start_write include/linux/fs.h:1575 [inline]
 #1: 00000000d60061f8 (sb_writers#4){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360

stack backtrace:
CPU: 1 PID: 5742 Comm: syz-executor.5 Not tainted 4.19.38 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221
 check_prev_add kernel/locking/lockdep.c:1861 [inline]
 check_prevs_add kernel/locking/lockdep.c:1974 [inline]
 validate_chain kernel/locking/lockdep.c:2415 [inline]
 __lock_acquire+0x2e6d/0x48f0 kernel/locking/lockdep.c:3411
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
 __mutex_lock_common kernel/locking/mutex.c:925 [inline]
 __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
 acct_pin_kill+0x27/0x100 kernel/acct.c:173
 pin_kill+0x18f/0x860 fs/fs_pin.c:50
 acct_on+0x574/0x790 kernel/acct.c:254
 __do_sys_acct kernel/acct.c:286 [inline]
 __se_sys_acct kernel/acct.c:273 [inline]
 __x64_sys_acct+0xae/0x200 kernel/acct.c:273
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f360e113c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458da9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f360e1146d4
R13: 00000000004becd2 R14: 00000000004cfa50 R15: 00000000ffffffff
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'input35' (0000000005e37519): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'input35' (0000000005e37519): kobject_uevent_env
kobject: 'input35' (0000000005e37519): fill_kobj_path: path = '/devices/virtual/input/input35'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
Process accounting resumed
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'input35' (0000000005e37519): fill_kobj_path: path = '/devices/virtual/input/input35'
input: syz1 as /devices/virtual/input/input35
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (000000007870315b): kobject_add_internal: parent: 'input35', set: 'devices'
kobject: 'event4' (000000007870315b): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'event4' (000000007870315b): fill_kobj_path: path = '/devices/virtual/input/input35/event4'
Process accounting resumed
kobject: 'event4' (000000007870315b): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (000000007870315b): fill_kobj_path: path = '/devices/virtual/input/input35/event4'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: '(null)' (0000000009f8797a): kobject_cleanup, parent 000000007870315b
kobject: '(null)' (0000000009f8797a): calling ktype release
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'event4' (000000007870315b): kobject_cleanup, parent           (null)
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (000000007870315b): calling ktype release
Process accounting resumed
kobject: 'event4': free name
kobject: 'input35' (0000000005e37519): kobject_uevent_env
kobject: 'input35' (0000000005e37519): fill_kobj_path: path = '/devices/virtual/input/input35'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'input35' (0000000005e37519): kobject_cleanup, parent           (null)
kobject: 'input35' (0000000005e37519): calling ktype release
kobject: 'input35': free name
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'input36' (000000004725ae50): kobject_cleanup, parent           (null)
kobject: 'input36' (000000004725ae50): calling ktype release
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'input36': free name
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'input37' (00000000995c9729): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'input37' (00000000995c9729): kobject_uevent_env
kobject: 'input37' (00000000995c9729): fill_kobj_path: path = '/devices/virtual/input/input37'
kobject: 'input37' (00000000995c9729): fill_kobj_path: path = '/devices/virtual/input/input37'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
input: syz1 as /devices/virtual/input/input37
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'event4' (00000000ce1e0a8c): kobject_add_internal: parent: 'input37', set: 'devices'
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'input38' (000000008587d112): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'event4' (00000000ce1e0a8c): kobject_uevent_env
kobject: 'event4' (00000000ce1e0a8c): fill_kobj_path: path = '/devices/virtual/input/input37/event4'
kobject: 'input39' (00000000cc5e4a88): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'input38' (000000008587d112): kobject_uevent_env
kobject: 'input38' (000000008587d112): fill_kobj_path: path = '/devices/virtual/input/input38'
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (00000000ce1e0a8c): kobject_uevent_env
kobject: 'input39' (00000000cc5e4a88): kobject_uevent_env
kobject: 'input39' (00000000cc5e4a88): fill_kobj_path: path = '/devices/virtual/input/input39'
kobject: 'input38' (000000008587d112): fill_kobj_path: path = '/devices/virtual/input/input38'
kobject: 'input39' (00000000cc5e4a88): fill_kobj_path: path = '/devices/virtual/input/input39'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
input: syz1 as /devices/virtual/input/input39
kobject: 'event4' (00000000ce1e0a8c): fill_kobj_path: path = '/devices/virtual/input/input37/event4'
input: syz1 as /devices/virtual/input/input38
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '(null)' (000000000ae200f5): kobject_cleanup, parent 00000000ce1e0a8c
kobject: '(null)' (000000000ae200f5): calling ktype release
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (00000000ce1e0a8c): kobject_cleanup, parent           (null)
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'event4' (00000000ce1e0a8c): calling ktype release
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4': free name
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'event4' (00000000bc0cd857): kobject_add_internal: parent: 'input39', set: 'devices'
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (00000000bc0cd857): kobject_uevent_env
kobject: 'input37' (00000000995c9729): kobject_uevent_env
kobject: 'event4' (00000000bc0cd857): fill_kobj_path: path = '/devices/virtual/input/input39/event4'
kobject: 'event5' (00000000a8df176b): kobject_add_internal: parent: 'input38', set: 'devices'
kobject: 'event5' (00000000a8df176b): kobject_uevent_env
kobject: 'input37' (00000000995c9729): fill_kobj_path: path = '/devices/virtual/input/input37'
kobject: 'event5' (00000000a8df176b): fill_kobj_path: path = '/devices/virtual/input/input38/event5'
kobject: 'event5' (00000000a8df176b): kobject_uevent_env
kobject: 'input37' (00000000995c9729): kobject_cleanup, parent           (null)
kobject: 'event5' (00000000a8df176b): fill_kobj_path: path = '/devices/virtual/input/input38/event5'
kobject: 'input37' (00000000995c9729): calling ktype release
kobject: 'input37': free name
kobject: '(null)' (000000004bf11a04): kobject_cleanup, parent 00000000a8df176b
kobject: '(null)' (000000004bf11a04): calling ktype release
kobject: 'event5' (00000000a8df176b): kobject_cleanup, parent           (null)
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'input40' (000000005e942287): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'event5' (00000000a8df176b): calling ktype release
kobject: 'input40' (000000005e942287): kobject_uevent_env
kobject: 'input40' (000000005e942287): fill_kobj_path: path = '/devices/virtual/input/input40'
kobject: 'event5': free name
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'input38' (000000008587d112): kobject_uevent_env
kobject: 'event4' (00000000bc0cd857): kobject_uevent_env
kobject: 'input40' (000000005e942287): fill_kobj_path: path = '/devices/virtual/input/input40'
kobject: 'event4' (00000000bc0cd857): fill_kobj_path: path = '/devices/virtual/input/input39/event4'
kobject: 'input38' (000000008587d112): fill_kobj_path: path = '/devices/virtual/input/input38'
input: syz1 as /devices/virtual/input/input40
kobject: '(null)' (00000000b2f238bd): kobject_cleanup, parent 00000000bc0cd857
kobject: 'input38' (000000008587d112): kobject_cleanup, parent           (null)
kobject: '(null)' (00000000b2f238bd): calling ktype release
kobject: 'input38' (000000008587d112): calling ktype release
kobject: 'input38': free name
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (00000000bc0cd857): kobject_cleanup, parent           (null)
kobject: 'event4' (00000000bc0cd857): calling ktype release
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'event4': free name
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (000000009a4fddc3): kobject_add_internal: parent: 'input40', set: 'devices'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'input39' (00000000cc5e4a88): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'event4' (000000009a4fddc3): kobject_uevent_env
kobject: 'input41' (00000000479d9dad): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'input39' (00000000cc5e4a88): fill_kobj_path: path = '/devices/virtual/input/input39'
kobject: 'event4' (000000009a4fddc3): fill_kobj_path: path = '/devices/virtual/input/input40/event4'
kobject: 'input41' (00000000479d9dad): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'input39' (00000000cc5e4a88): kobject_cleanup, parent           (null)
kobject: 'event4' (000000009a4fddc3): kobject_uevent_env
kobject: 'input41' (00000000479d9dad): fill_kobj_path: path = '/devices/virtual/input/input41'
kobject: 'event4' (000000009a4fddc3): fill_kobj_path: path = '/devices/virtual/input/input40/event4'
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'input39' (00000000cc5e4a88): calling ktype release
kobject: 'input41' (00000000479d9dad): fill_kobj_path: path = '/devices/virtual/input/input41'
kobject: '(null)' (000000007db83b28): kobject_cleanup, parent 000000009a4fddc3
kobject: 'input39': free name
input: syz1 as /devices/virtual/input/input41
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: '(null)' (000000007db83b28): calling ktype release
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (000000009a4fddc3): kobject_cleanup, parent           (null)
kobject: 'input42' (00000000706cb1d5): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'event4' (000000009a4fddc3): calling ktype release
kobject: 'event4': free name
kobject: 'input42' (00000000706cb1d5): kobject_uevent_env
kobject: 'event4' (000000003491cef5): kobject_add_internal: parent: 'input41', set: 'devices'
kobject: 'input40' (000000005e942287): kobject_uevent_env
kobject: 'input42' (00000000706cb1d5): fill_kobj_path: path = '/devices/virtual/input/input42'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'event4' (000000003491cef5): kobject_uevent_env
kobject: 'input40' (000000005e942287): fill_kobj_path: path = '/devices/virtual/input/input40'
kobject: 'event4' (000000003491cef5): fill_kobj_path: path = '/devices/virtual/input/input41/event4'
kobject: 'input42' (00000000706cb1d5): fill_kobj_path: path = '/devices/virtual/input/input42'
kobject: 'input40' (000000005e942287): kobject_cleanup, parent           (null)
kobject: 'event4' (000000003491cef5): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (000000003491cef5): fill_kobj_path: path = '/devices/virtual/input/input41/event4'
kobject: 'input40' (000000005e942287): calling ktype release
kobject: '(null)' (00000000c21226a0): kobject_cleanup, parent 000000003491cef5
input: syz1 as /devices/virtual/input/input42
kobject: '(null)' (00000000c21226a0): calling ktype release
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'input40': free name
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (000000003491cef5): kobject_cleanup, parent           (null)
kobject: 'event4' (000000003491cef5): calling ktype release
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'event4': free name
kobject: 'input43' (000000004cd90308): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'event4' (00000000c5e75999): kobject_add_internal: parent: 'input42', set: 'devices'
kobject: 'input41' (00000000479d9dad): kobject_uevent_env
kobject: 'input43' (000000004cd90308): kobject_uevent_env
kobject: 'event4' (00000000c5e75999): kobject_uevent_env
kobject: 'input41' (00000000479d9dad): fill_kobj_path: path = '/devices/virtual/input/input41'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'input43' (000000004cd90308): fill_kobj_path: path = '/devices/virtual/input/input43'
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event4' (00000000c5e75999): fill_kobj_path: path = '/devices/virtual/input/input42/event4'
kobject: 'input41' (00000000479d9dad): kobject_cleanup, parent           (null)
kobject: 'input43' (000000004cd90308): fill_kobj_path: path = '/devices/virtual/input/input43'
input: syz1 as /devices/virtual/input/input43
kobject: 'event4' (00000000c5e75999): kobject_uevent_env
kobject: 'input41' (00000000479d9dad): calling ktype release
kobject: 'event4' (00000000c5e75999): fill_kobj_path: path = '/devices/virtual/input/input42/event4'
kobject: 'input41': free name
kobject: '(null)' (0000000023bf1c6c): kobject_cleanup, parent 00000000c5e75999
kobject: '(null)' (0000000023bf1c6c): calling ktype release
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'event4' (00000000c5e75999): kobject_cleanup, parent           (null)
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (00000000c5e75999): calling ktype release
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'event4': free name
kobject: 'input44' (00000000fecbc552): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'event4' (00000000f76512e3): kobject_add_internal: parent: 'input43', set: 'devices'
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'input42' (00000000706cb1d5): kobject_uevent_env
kobject: 'input44' (00000000fecbc552): kobject_uevent_env
kobject: 'event4' (00000000f76512e3): kobject_uevent_env
kobject: 'input42' (00000000706cb1d5): fill_kobj_path: path = '/devices/virtual/input/input42'
kobject: 'event4' (00000000f76512e3): fill_kobj_path: path = '/devices/virtual/input/input43/event4'
kobject: 'input44' (00000000fecbc552): fill_kobj_path: path = '/devices/virtual/input/input44'
kobject: 'input42' (00000000706cb1d5): kobject_cleanup, parent           (null)
kobject: 'input42' (00000000706cb1d5): calling ktype release
kobject: 'event4' (00000000f76512e3): kobject_uevent_env
kobject: 'input42': free name
kobject: 'input44' (00000000fecbc552): fill_kobj_path: path = '/devices/virtual/input/input44'
kobject: 'event4' (00000000f76512e3): fill_kobj_path: path = '/devices/virtual/input/input43/event4'
kobject: '(null)' (0000000026de9363): kobject_cleanup, parent 00000000f76512e3
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: '(null)' (0000000026de9363): calling ktype release
input: syz1 as /devices/virtual/input/input44
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (00000000f76512e3): kobject_cleanup, parent           (null)
kobject: 'input45' (000000000920e6f1): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'input45' (000000000920e6f1): kobject_uevent_env
kobject: 'event4' (00000000f76512e3): calling ktype release
kobject: 'input45' (000000000920e6f1): fill_kobj_path: path = '/devices/virtual/input/input45'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'input45' (000000000920e6f1): fill_kobj_path: path = '/devices/virtual/input/input45'
kobject: 'event4': free name
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
input: syz1 as /devices/virtual/input/input45
kobject: 'input43' (000000004cd90308): kobject_uevent_env
kobject: 'event4' (000000002bb8f0a1): kobject_add_internal: parent: 'input44', set: 'devices'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'event4' (000000002bb8f0a1): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (000000002bb8f0a1): fill_kobj_path: path = '/devices/virtual/input/input44/event4'
kobject: 'input43' (000000004cd90308): fill_kobj_path: path = '/devices/virtual/input/input43'
kobject: 'event5' (00000000e0308b14): kobject_add_internal: parent: 'input45', set: 'devices'
kobject: 'input43' (000000004cd90308): kobject_cleanup, parent           (null)
kobject: 'event5' (00000000e0308b14): kobject_uevent_env
kobject: 'input43' (000000004cd90308): calling ktype release
kobject: 'event5' (00000000e0308b14): fill_kobj_path: path = '/devices/virtual/input/input45/event5'
kobject: 'input43': free name
kobject: 'event4' (000000002bb8f0a1): kobject_uevent_env
kobject: 'event4' (000000002bb8f0a1): fill_kobj_path: path = '/devices/virtual/input/input44/event4'
kobject: '(null)' (00000000cfa4ef9a): kobject_cleanup, parent 000000002bb8f0a1
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: '(null)' (00000000cfa4ef9a): calling ktype release
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'event4' (000000002bb8f0a1): kobject_cleanup, parent           (null)
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (000000002bb8f0a1): calling ktype release
kobject: 'event4': free name
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'input44' (00000000fecbc552): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'event5' (00000000e0308b14): kobject_uevent_env
kobject: 'input44' (00000000fecbc552): fill_kobj_path: path = '/devices/virtual/input/input44'
kobject: 'event5' (00000000e0308b14): fill_kobj_path: path = '/devices/virtual/input/input45/event5'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'input44' (00000000fecbc552): kobject_cleanup, parent           (null)
kobject: 'input44' (00000000fecbc552): calling ktype release
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'input44': free name
kobject: '(null)' (00000000a5ede9db): kobject_cleanup, parent 00000000e0308b14
kobject: '(null)' (00000000a5ede9db): calling ktype release
kobject: 'event5' (00000000e0308b14): kobject_cleanup, parent           (null)
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'event5' (00000000e0308b14): calling ktype release
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'event5': free name
kobject: 'input45' (000000000920e6f1): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'input45' (000000000920e6f1): fill_kobj_path: path = '/devices/virtual/input/input45'
kobject: 'input45' (000000000920e6f1): kobject_cleanup, parent           (null)
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'input45' (000000000920e6f1): calling ktype release
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'input45': free name
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
overlayfs: './file0' not a directory
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000074b42087): kobject_uevent_env
kobject: 'loop5' (0000000074b42087): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000b8f027fb): kobject_uevent_env
kobject: 'loop4' (00000000b8f027fb): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (000000006956267e): kobject_uevent_env
kobject: 'loop3' (000000006956267e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000005ebb3248): kobject_uevent_env
kobject: 'loop2' (000000005ebb3248): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f62d20cb): kobject_uevent_env
kobject: 'loop0' (00000000f62d20cb): fill_kobj_path: path = '/devices/virtual/block/loop0'