------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.7.0-rc4-next-20231207-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.3/4632 is trying to acquire lock:
ffffffff8d199458 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x12/0x70 kernel/locking/semaphore.c:139
but task is already holding lock:
ffffffff8dc75078 (pool_rwlock){----}-{2:2}, at: stack_depot_put lib/stackdepot.c:621 [inline]
ffffffff8dc75078 (pool_rwlock){----}-{2:2}, at: stack_depot_put+0x24/0x110 lib/stackdepot.c:613
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (pool_rwlock){----}-{2:2}:
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x46/0x90 kernel/locking/spinlock.c:236
stack_depot_save_flags+0x169/0x740 lib/stackdepot.c:508
kasan_save_stack+0x42/0x50 mm/kasan/common.c:48
__kasan_record_aux_stack+0xc2/0xd0 mm/kasan/generic.c:517
task_work_add+0x88/0x2a0 kernel/task_work.c:48
task_tick_numa kernel/sched/fair.c:3512 [inline]
task_tick_fair+0x5a5/0xc30 kernel/sched/fair.c:12599
scheduler_tick+0x210/0x650 kernel/sched/core.c:5674
update_process_times+0x19e/0x220 kernel/time/timer.c:2076
tick_sched_handle+0x8e/0x170 kernel/time/tick-sched.c:255
tick_nohz_highres_handler+0xe9/0x110 kernel/time/tick-sched.c:1516
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x654/0xc20 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x10c/0x410 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
check_kcov_mode kernel/kcov.c:173 [inline]
write_comp_data+0x2e/0x80 kernel/kcov.c:236
__sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:341
unwind_next_frame+0xea8/0x2390 arch/x86/kernel/unwind_orc.c:641
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x15e/0x1f0 mm/page_owner.c:130
__set_page_owner+0x1f/0x60 mm/page_owner.c:196
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1540
prep_new_page mm/page_alloc.c:1547 [inline]
get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3355
__alloc_pages+0x22e/0x2410 mm/page_alloc.c:4611
alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
folio_alloc+0x1e/0xe0 mm/mempolicy.c:2211
filemap_alloc_folio+0x3b6/0x490 mm/filemap.c:974
page_cache_ra_unbounded+0x1aa/0x5e0 mm/readahead.c:247
do_page_cache_ra mm/readahead.c:299 [inline]
page_cache_ra_order+0x7d7/0xaa0 mm/readahead.c:544
ondemand_readahead+0x493/0x1130 mm/readahead.c:666
page_cache_async_ra mm/readahead.c:715 [inline]
page_cache_async_ra+0x123/0x150 mm/readahead.c:697
filemap_readahead mm/filemap.c:2472 [inline]
filemap_get_pages+0x359/0x1830 mm/filemap.c:2513
filemap_read+0x39b/0xcf0 mm/filemap.c:2593
generic_file_read_iter+0x346/0x450 mm/filemap.c:2772
ext4_file_read_iter+0x1dc/0x6c0 fs/ext4/file.c:147
__kernel_read+0x300/0x870 fs/read_write.c:428
integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:221
ima_calc_file_hash_tfm+0x2c5/0x3d0 security/integrity/ima/ima_crypto.c:485
ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
ima_calc_file_hash+0x1c6/0x4a0 security/integrity/ima/ima_crypto.c:573
ima_collect_measurement+0x85e/0xa20 security/integrity/ima/ima_api.c:290
process_measurement+0xe92/0x2260 security/integrity/ima/ima_main.c:359
ima_file_mmap+0x1ad/0x1d0 security/integrity/ima/ima_main.c:449
security_mmap_file+0x186/0x1d0 security/security.c:2788
vm_mmap_pgoff+0xdb/0x3c0 mm/util.c:552
vm_mmap+0x8e/0xc0 mm/util.c:575
elf_map fs/binfmt_elf.c:385 [inline]
elf_load+0x196/0x870 fs/binfmt_elf.c:408
load_elf_interp fs/binfmt_elf.c:675 [inline]
load_elf_binary+0x3436/0x4e10 fs/binfmt_elf.c:1200
search_binary_handler fs/exec.c:1736 [inline]
exec_binprm fs/exec.c:1778 [inline]
bprm_execve fs/exec.c:1853 [inline]
bprm_execve+0x7ef/0x1a80 fs/exec.c:1809
kernel_execve+0x3d7/0x4e0 fs/exec.c:2034
try_to_run_init_process init/main.c:1364 [inline]
kernel_init+0x137/0x2a0 init/main.c:1497
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
-> #2 (&rq->__lock){-.-.}-{2:2}:
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
raw_spin_rq_lock kernel/sched/sched.h:1385 [inline]
rq_lock kernel/sched/sched.h:1699 [inline]
task_fork_fair+0x70/0x240 kernel/sched/fair.c:12619
sched_cgroup_fork+0x3cf/0x510 kernel/sched/core.c:4835
copy_process+0x6a38/0x9770 kernel/fork.c:2601
kernel_clone+0xfd/0x940 kernel/fork.c:2899
user_mode_thread+0xb4/0xf0 kernel/fork.c:2977
rest_init+0x27/0x2b0 init/main.c:695
arch_call_rest_init+0x13/0x30 init/main.c:827
start_kernel+0x39e/0x480 init/main.c:1072
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:555
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:536
secondary_startup_64_no_verify+0x166/0x16b
-> #1 (&p->pi_lock){-.-.}-{2:2}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:522 [inline]
try_to_wake_up+0x9a/0x13d0 kernel/sched/core.c:4252
up+0x79/0xb0 kernel/locking/semaphore.c:191
__up_console_sem kernel/printk/printk.c:340 [inline]
__console_unlock kernel/printk/printk.c:2706 [inline]
console_unlock+0x1cf/0x260 kernel/printk/printk.c:3038
vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303
dev_vprintk_emit drivers/base/core.c:4850 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4861
__dev_printk+0xf5/0x270 drivers/base/core.c:4873
_dev_warn+0xe5/0x120 drivers/base/core.c:4917
hid_parser_main+0x2b2/0xc80 drivers/hid/hid-core.c:632
hid_open_report+0x3ee/0x7b0 drivers/hid/hid-core.c:1276
hid_parse include/linux/hid.h:1118 [inline]
hid_generic_probe+0x4d/0x90 drivers/hid/hid-generic.c:63
__hid_device_probe drivers/hid/hid-core.c:2633 [inline]
hid_device_probe+0x2e4/0x480 drivers/hid/hid-core.c:2670
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x234/0xc90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830
__device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958
bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532
device_add+0x117e/0x1aa0 drivers/base/core.c:3625
hid_add_device+0x37a/0xa60 drivers/hid/hid-core.c:2816
uhid_device_add_worker+0x3e/0x110 drivers/hid/uhid.c:73
process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
-> #0 ((console_sem).lock){-.-.}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x246e/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5719
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
down_trylock+0x12/0x70 kernel/locking/semaphore.c:139
__down_trylock_console_sem+0x40/0x140 kernel/printk/printk.c:323
console_trylock+0x73/0x130 kernel/printk/printk.c:2659
console_trylock_spinning kernel/printk/printk.c:1923 [inline]
vprintk_emit+0x162/0x5f0 kernel/printk/printk.c:2302
vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2328
__warn_printk+0x158/0x350 kernel/panic.c:721
refcount_warn_saturate+0x149/0x210 lib/refcount.c:28
__refcount_sub_and_test include/linux/refcount.h:283 [inline]
__refcount_dec_and_test include/linux/refcount.h:315 [inline]
refcount_dec_and_test include/linux/refcount.h:333 [inline]
stack_depot_put lib/stackdepot.c:627 [inline]
stack_depot_put+0xe4/0x110 lib/stackdepot.c:613
__kasan_record_aux_stack+0xb3/0xd0 mm/kasan/generic.c:515
insert_work+0x38/0x230 kernel/workqueue.c:1653
__queue_work+0x633/0x11d0 kernel/workqueue.c:1802
__queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953
mod_delayed_work_on+0xcc/0x1a0 kernel/workqueue.c:2027
kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1046
blk_kick_flush block/blk-flush.c:348 [inline]
blk_flush_complete_seq+0xa66/0x10c0 block/blk-flush.c:213
blk_insert_flush+0x349/0x6d0 block/blk-flush.c:456
blk_mq_submit_bio+0x16cd/0x2150 block/blk-mq.c:3005
__submit_bio+0xfd/0x310 block/blk-core.c:607
__submit_bio_noacct_mq block/blk-core.c:686 [inline]
submit_bio_noacct_nocheck+0x852/0xbb0 block/blk-core.c:715
submit_bio_noacct+0x87b/0x1b90 block/blk-core.c:809
submit_bio_wait+0x10a/0x230 block/bio.c:1365
blkdev_issue_flush+0xa7/0xf0 block/blk-flush.c:474
jbd2_cleanup_journal_tail+0x1b7/0x200 fs/jbd2/checkpoint.c:332
jbd2_log_do_checkpoint+0x81/0xbb0 fs/jbd2/checkpoint.c:163
jbd2_journal_flush+0x188/0xc10 fs/jbd2/journal.c:2456
ext4_change_inode_journal_flag+0x5e5/0x9f0 fs/ext4/inode.c:6026
ext4_ioctl_setflags fs/ext4/ioctl.c:695 [inline]
ext4_fileattr_set+0xcb1/0x17a0 fs/ext4/ioctl.c:1021
vfs_fileattr_set+0x7c6/0xbf0 fs/ioctl.c:697
ioctl_fssetxattr fs/ioctl.c:759 [inline]
do_vfs_ioctl+0xf92/0x1920 fs/ioctl.c:846
__do_sys_ioctl fs/ioctl.c:869 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x112/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x62/0x6a
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &rq->__lock --> pool_rwlock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(pool_rwlock);
lock(&rq->__lock);
lock(pool_rwlock);
lock((console_sem).lock);
*** DEADLOCK ***
9 locks held by syz-executor.3/4632:
#0: ffff8880263de420 (sb_writers#4){.+.+}-{0:0}, at: ioctl_setflags fs/ioctl.c:726 [inline]
#0: ffff8880263de420 (sb_writers#4){.+.+}-{0:0}, at: do_vfs_ioctl+0xf5e/0x1920 fs/ioctl.c:840
#1: ffff88808f866800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88808f866800 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_fileattr_set+0x153/0xbf0 fs/ioctl.c:682
#2: ffff888025a48b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_write fs/ext4/ext4.h:1779 [inline]
#2: ffff888025a48b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x55d/0x9f0 fs/ext4/inode.c:6012
#3: ffff888025a4a168 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x15d/0x340 fs/jbd2/transaction.c:904
#4: ffff888025a4a3f0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: jbd2_journal_flush+0x180/0xc10 fs/jbd2/journal.c:2455
#5: ffff88801f007118 (&fq->mq_flush_lock){..-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline]
#5: ffff88801f007118 (&fq->mq_flush_lock){..-.}-{2:2}, at: blk_insert_flush+0x337/0x6d0 block/blk-flush.c:455
#6: ffffffff8d1ab9a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#6: ffffffff8d1ab9a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:744 [inline]
#6: ffffffff8d1ab9a0 (rcu_read_lock){....}-{1:2}, at: __queue_work+0xf2/0x11d0 kernel/workqueue.c:1730
#7: ffff8880b993c2f8 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x39e/0x11d0 kernel/workqueue.c:1766
#8: ffffffff8dc75078 (pool_rwlock){----}-{2:2}, at: stack_depot_put lib/stackdepot.c:621 [inline]
#8: ffffffff8dc75078 (pool_rwlock){----}-{2:2}, at: stack_depot_put+0x24/0x110 lib/stackdepot.c:613
stack backtrace:
CPU: 1 PID: 4632 Comm: syz-executor.3 Not tainted 6.7.0-rc4-next-20231207-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
check_noncircular+0x316/0x400 kernel/locking/lockdep.c:2187
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x246e/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5719
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
down_trylock+0x12/0x70 kernel/locking/semaphore.c:139
__down_trylock_console_sem+0x40/0x140 kernel/printk/printk.c:323
console_trylock+0x73/0x130 kernel/printk/printk.c:2659
console_trylock_spinning kernel/printk/printk.c:1923 [inline]
vprintk_emit+0x162/0x5f0 kernel/printk/printk.c:2302
vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2328
__warn_printk+0x158/0x350 kernel/panic.c:721
refcount_warn_saturate+0x149/0x210 lib/refcount.c:28
__refcount_sub_and_test include/linux/refcount.h:283 [inline]
__refcount_dec_and_test include/linux/refcount.h:315 [inline]
refcount_dec_and_test include/linux/refcount.h:333 [inline]
stack_depot_put lib/stackdepot.c:627 [inline]
stack_depot_put+0xe4/0x110 lib/stackdepot.c:613
__kasan_record_aux_stack+0xb3/0xd0 mm/kasan/generic.c:515
insert_work+0x38/0x230 kernel/workqueue.c:1653
__queue_work+0x633/0x11d0 kernel/workqueue.c:1802
__queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953
mod_delayed_work_on+0xcc/0x1a0 kernel/workqueue.c:2027
kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1046
blk_kick_flush block/blk-flush.c:348 [inline]
blk_flush_complete_seq+0xa66/0x10c0 block/blk-flush.c:213
blk_insert_flush+0x349/0x6d0 block/blk-flush.c:456
blk_mq_submit_bio+0x16cd/0x2150 block/blk-mq.c:3005
__submit_bio+0xfd/0x310 block/blk-core.c:607
__submit_bio_noacct_mq block/blk-core.c:686 [inline]
submit_bio_noacct_nocheck+0x852/0xbb0 block/blk-core.c:715
submit_bio_noacct+0x87b/0x1b90 block/blk-core.c:809
submit_bio_wait+0x10a/0x230 block/bio.c:1365
blkdev_issue_flush+0xa7/0xf0 block/blk-flush.c:474
jbd2_cleanup_journal_tail+0x1b7/0x200 fs/jbd2/checkpoint.c:332
jbd2_log_do_checkpoint+0x81/0xbb0 fs/jbd2/checkpoint.c:163
jbd2_journal_flush+0x188/0xc10 fs/jbd2/journal.c:2456
ext4_change_inode_journal_flag+0x5e5/0x9f0 fs/ext4/inode.c:6026
ext4_ioctl_setflags fs/ext4/ioctl.c:695 [inline]
ext4_fileattr_set+0xcb1/0x17a0 fs/ext4/ioctl.c:1021
vfs_fileattr_set+0x7c6/0xbf0 fs/ioctl.c:697
ioctl_fssetxattr fs/ioctl.c:759 [inline]
do_vfs_ioctl+0xf92/0x1920 fs/ioctl.c:846
__do_sys_ioctl fs/ioctl.c:869 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x112/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fc0f8c7cba9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc0f9ac30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc0f8d9bf80 RCX: 00007fc0f8c7cba9
RDX: 00000000200002c0 RSI: 0000000040086602 RDI: 0000000000000004
RBP: 00007fc0f8cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc0f8d9bf80 R15: 00007ffc4dd7e688
</TASK>
refcount_t: underflow; use-after-free.
WARNING: CPU: 1 PID: 4632 at lib/refcount.c:28 refcount_warn_saturate+0x14a/0x210 lib/refcount.c:28
Modules linked in:
CPU: 1 PID: 4632 Comm: syz-executor.3 Not tainted 6.7.0-rc4-next-20231207-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:refcount_warn_saturate+0x14a/0x210 lib/refcount.c:28
Code: ff 89 de e8 58 b6 22 fd 84 db 0f 85 66 ff ff ff e8 1b bb 22 fd c6 05 32 25 be 0a 01 90 48 c7 c7 00 ce 2e 8b e8 67 ac e8 fc 90 <0f> 0b 90 90 e9 43 ff ff ff e8 f8 ba 22 fd 0f b6 1d 0d 25 be 0a 31
RSP: 0018:ffffc90003b7efd0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e05d9
RDX: ffff88808fe98000 RSI: ffffffff814e05e6 RDI: 0000000000000001
RBP: ffff88803293599c R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffffffff6c40 R12: ffff888017eb58c0
R13: ffff888018ad4800 R14: ffff888018ad485c R15: ffff8880b993c340
FS: 00007fc0f9ac36c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020045000 CR3: 00000000a569d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__refcount_sub_and_test include/linux/refcount.h:283 [inline]
__refcount_dec_and_test include/linux/refcount.h:315 [inline]
refcount_dec_and_test include/linux/refcount.h:333 [inline]
stack_depot_put lib/stackdepot.c:627 [inline]
stack_depot_put+0xe4/0x110 lib/stackdepot.c:613
__kasan_record_aux_stack+0xb3/0xd0 mm/kasan/generic.c:515
insert_work+0x38/0x230 kernel/workqueue.c:1653
__queue_work+0x633/0x11d0 kernel/workqueue.c:1802
__queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953
mod_delayed_work_on+0xcc/0x1a0 kernel/workqueue.c:2027
kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1046
blk_kick_flush block/blk-flush.c:348 [inline]
blk_flush_complete_seq+0xa66/0x10c0 block/blk-flush.c:213
blk_insert_flush+0x349/0x6d0 block/blk-flush.c:456
blk_mq_submit_bio+0x16cd/0x2150 block/blk-mq.c:3005
__submit_bio+0xfd/0x310 block/blk-core.c:607
__submit_bio_noacct_mq block/blk-core.c:686 [inline]
submit_bio_noacct_nocheck+0x852/0xbb0 block/blk-core.c:715
submit_bio_noacct+0x87b/0x1b90 block/blk-core.c:809
submit_bio_wait+0x10a/0x230 block/bio.c:1365
blkdev_issue_flush+0xa7/0xf0 block/blk-flush.c:474
jbd2_cleanup_journal_tail+0x1b7/0x200 fs/jbd2/checkpoint.c:332
jbd2_log_do_checkpoint+0x81/0xbb0 fs/jbd2/checkpoint.c:163
jbd2_journal_flush+0x188/0xc10 fs/jbd2/journal.c:2456
ext4_change_inode_journal_flag+0x5e5/0x9f0 fs/ext4/inode.c:6026
ext4_ioctl_setflags fs/ext4/ioctl.c:695 [inline]
ext4_fileattr_set+0xcb1/0x17a0 fs/ext4/ioctl.c:1021
vfs_fileattr_set+0x7c6/0xbf0 fs/ioctl.c:697
ioctl_fssetxattr fs/ioctl.c:759 [inline]
do_vfs_ioctl+0xf92/0x1920 fs/ioctl.c:846
__do_sys_ioctl fs/ioctl.c:869 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x112/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fc0f8c7cba9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc0f9ac30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc0f8d9bf80 RCX: 00007fc0f8c7cba9
RDX: 00000000200002c0 RSI: 0000000040086602 RDI: 0000000000000004
RBP: 00007fc0f8cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc0f8d9bf80 R15: 00007ffc4dd7e688
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