=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
5.14.0-rc3-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor042/8440 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff888029e163b8 (&f->f_owner.lock){.+.+}-{2:2}, at: send_sigio+0x24/0x380 fs/fcntl.c:795

and this task is already holding:
ffff88801bfe7018 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1012 [inline]
ffff88801bfe7018 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1033 [inline]
ffff88801bfe7018 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x132/0x460 fs/fcntl.c:1026
which would create a new lock dependency:
 (&new->fa_lock){....}-{2:2} -> (&f->f_owner.lock){.+.+}-{2:2}

but this new dependency connects a HARDIRQ-irq-safe lock:
 (&dev->event_lock){-...}-{2:2}

... which became HARDIRQ-irq-safe at:
  lock_acquire kernel/locking/lockdep.c:5625 [inline]
  lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
  __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
  _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
  input_event drivers/input/input.c:445 [inline]
  input_event+0x7b/0xb0 drivers/input/input.c:438
  input_report_key include/linux/input.h:425 [inline]
  psmouse_report_standard_buttons+0x2c/0x80 drivers/input/mouse/psmouse-base.c:123
  psmouse_report_standard_packet drivers/input/mouse/psmouse-base.c:141 [inline]
  psmouse_process_byte+0x1e1/0x890 drivers/input/mouse/psmouse-base.c:232
  psmouse_handle_byte+0x41/0x1b0 drivers/input/mouse/psmouse-base.c:274
  psmouse_interrupt+0x304/0xf00 drivers/input/mouse/psmouse-base.c:426
  serio_interrupt+0x88/0x150 drivers/input/serio/serio.c:1002
  i8042_interrupt+0x27a/0x520 drivers/input/serio/i8042.c:602
  __handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156
  handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
  handle_irq_event+0x102/0x280 kernel/irq/handle.c:213
  handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819
  generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
  handle_irq arch/x86/kernel/irq.c:231 [inline]
  __common_interrupt+0x9d/0x210 arch/x86/kernel/irq.c:250
  common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240
  asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
  __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
  _raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191
  spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
  i8042_command+0x12e/0x150 drivers/input/serio/i8042.c:352
  i8042_aux_write+0xd7/0x120 drivers/input/serio/i8042.c:387
  serio_write include/linux/serio.h:125 [inline]
  ps2_do_sendbyte+0x2cf/0x710 drivers/input/serio/libps2.c:40
  ps2_sendbyte+0x58/0x150 drivers/input/serio/libps2.c:92
  cypress_ps2_sendbyte+0x2e/0x160 drivers/input/mouse/cypress_ps2.c:42
  cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:116 [inline]
  cypress_send_ext_cmd+0x1d0/0x8e0 drivers/input/mouse/cypress_ps2.c:189
  cypress_detect+0x75/0x190 drivers/input/mouse/cypress_ps2.c:205
  psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline]
  psmouse_try_protocol+0x211/0x370 drivers/input/mouse/psmouse-base.c:1023
  psmouse_extensions+0x557/0x930 drivers/input/mouse/psmouse-base.c:1146
  psmouse_switch_protocol+0x52a/0x740 drivers/input/mouse/psmouse-base.c:1542
  psmouse_connect+0x5e9/0xfd0 drivers/input/mouse/psmouse-base.c:1632
  serio_connect_driver drivers/input/serio/serio.c:47 [inline]
  serio_driver_probe+0x72/0xa0 drivers/input/serio/serio.c:778
  call_driver_probe drivers/base/dd.c:517 [inline]
  really_probe+0x23c/0xcd0 drivers/base/dd.c:595
  __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747
  driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777
  __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1136
  bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301
  serio_attach_driver drivers/input/serio/serio.c:808 [inline]
  serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
  process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
  worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
  kthread+0x3e5/0x4d0 kernel/kthread.c:319
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

to a HARDIRQ-irq-unsafe lock:
 (&f->f_owner.lock){.+.+}-{2:2}

... which became HARDIRQ-irq-unsafe at:
...
  lock_acquire kernel/locking/lockdep.c:5625 [inline]
  lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
  __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
  _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
  f_getown_ex fs/fcntl.c:211 [inline]
  do_fcntl+0x8af/0x1210 fs/fcntl.c:395
  __do_sys_fcntl fs/fcntl.c:471 [inline]
  __se_sys_fcntl fs/fcntl.c:456 [inline]
  __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:456
  do_syscall_x64 arch/x86/entry/common.c:50 [inline]
  do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

other info that might help us debug this:

Chain exists of:
  &dev->event_lock --> &new->fa_lock --> &f->f_owner.lock

 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&f->f_owner.lock);
                               local_irq_disable();
                               lock(&dev->event_lock);
                               lock(&new->fa_lock);
  <Interrupt>
    lock(&dev->event_lock);

 *** DEADLOCK ***

8 locks held by syz-executor042/8440:
 #0: ffff8881475b0110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 drivers/input/evdev.c:513
 #1: ffff888145a92230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xa6/0x320 drivers/input/input.c:471
 #2: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:53 [inline]
 #2: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:50 [inline]
 #2: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x320 drivers/input/input.c:470
 #3: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: input_dev_toggle drivers/input/input.c:1712 [inline]
 #3: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:1832
 #4: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3e0 drivers/input/evdev.c:296
 #5: ffff88801d7cb028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
 #5: ffff88801d7cb028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261
 #6: ffffffff8b97ba40 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 fs/fcntl.c:1031
 #7: ffff88801bfe7018 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1012 [inline]
 #7: ffff88801bfe7018 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1033 [inline]
 #7: ffff88801bfe7018 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x132/0x460 fs/fcntl.c:1026

the dependencies between HARDIRQ-irq-safe lock and the holding lock:
  -> (&dev->event_lock){-...}-{2:2} {
     IN-HARDIRQ-W at:
                        lock_acquire kernel/locking/lockdep.c:5625 [inline]
                        lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                        __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                        _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
                        input_event drivers/input/input.c:445 [inline]
                        input_event+0x7b/0xb0 drivers/input/input.c:438
                        input_report_key include/linux/input.h:425 [inline]
                        psmouse_report_standard_buttons+0x2c/0x80 drivers/input/mouse/psmouse-base.c:123
                        psmouse_report_standard_packet drivers/input/mouse/psmouse-base.c:141 [inline]
                        psmouse_process_byte+0x1e1/0x890 drivers/input/mouse/psmouse-base.c:232
                        psmouse_handle_byte+0x41/0x1b0 drivers/input/mouse/psmouse-base.c:274
                        psmouse_interrupt+0x304/0xf00 drivers/input/mouse/psmouse-base.c:426
                        serio_interrupt+0x88/0x150 drivers/input/serio/serio.c:1002
                        i8042_interrupt+0x27a/0x520 drivers/input/serio/i8042.c:602
                        __handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156
                        handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
                        handle_irq_event+0x102/0x280 kernel/irq/handle.c:213
                        handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819
                        generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
                        handle_irq arch/x86/kernel/irq.c:231 [inline]
                        __common_interrupt+0x9d/0x210 arch/x86/kernel/irq.c:250
                        common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240
                        asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
                        __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
                        _raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191
                        spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
                        i8042_command+0x12e/0x150 drivers/input/serio/i8042.c:352
                        i8042_aux_write+0xd7/0x120 drivers/input/serio/i8042.c:387
                        serio_write include/linux/serio.h:125 [inline]
                        ps2_do_sendbyte+0x2cf/0x710 drivers/input/serio/libps2.c:40
                        ps2_sendbyte+0x58/0x150 drivers/input/serio/libps2.c:92
                        cypress_ps2_sendbyte+0x2e/0x160 drivers/input/mouse/cypress_ps2.c:42
                        cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:116 [inline]
                        cypress_send_ext_cmd+0x1d0/0x8e0 drivers/input/mouse/cypress_ps2.c:189
                        cypress_detect+0x75/0x190 drivers/input/mouse/cypress_ps2.c:205
                        psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline]
                        psmouse_try_protocol+0x211/0x370 drivers/input/mouse/psmouse-base.c:1023
                        psmouse_extensions+0x557/0x930 drivers/input/mouse/psmouse-base.c:1146
                        psmouse_switch_protocol+0x52a/0x740 drivers/input/mouse/psmouse-base.c:1542
                        psmouse_connect+0x5e9/0xfd0 drivers/input/mouse/psmouse-base.c:1632
                        serio_connect_driver drivers/input/serio/serio.c:47 [inline]
                        serio_driver_probe+0x72/0xa0 drivers/input/serio/serio.c:778
                        call_driver_probe drivers/base/dd.c:517 [inline]
                        really_probe+0x23c/0xcd0 drivers/base/dd.c:595
                        __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747
                        driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777
                        __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1136
                        bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301
                        serio_attach_driver drivers/input/serio/serio.c:808 [inline]
                        serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
                        process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
                        worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
                        kthread+0x3e5/0x4d0 kernel/kthread.c:319
                        ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
     INITIAL USE at:
                       lock_acquire kernel/locking/lockdep.c:5625 [inline]
                       lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                       _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
                       input_inject_event+0xa6/0x320 drivers/input/input.c:471
                       __led_set_brightness drivers/leds/led-core.c:47 [inline]
                       led_set_brightness_nopm drivers/leds/led-core.c:271 [inline]
                       led_set_brightness_nosleep+0xe6/0x1a0 drivers/leds/led-core.c:287
                       led_set_brightness+0x134/0x170 drivers/leds/led-core.c:264
                       led_trigger_event drivers/leds/led-triggers.c:388 [inline]
                       led_trigger_event+0x75/0xd0 drivers/leds/led-triggers.c:377
                       kbd_led_trigger_activate+0xc9/0x100 drivers/tty/vt/keyboard.c:1029
                       led_trigger_set+0x61e/0xbd0 drivers/leds/led-triggers.c:195
                       led_trigger_set_default drivers/leds/led-triggers.c:259 [inline]
                       led_trigger_set_default+0x1a6/0x230 drivers/leds/led-triggers.c:246
                       led_classdev_register_ext+0x5b1/0x7c0 drivers/leds/led-class.c:412
                       led_classdev_register include/linux/leds.h:190 [inline]
                       input_leds_connect+0x4bd/0x860 drivers/input/input-leds.c:139
                       input_attach_handler+0x180/0x1f0 drivers/input/input.c:1035
                       input_register_device.cold+0xf0/0x304 drivers/input/input.c:2335
                       atkbd_connect+0x739/0xa00 drivers/input/keyboard/atkbd.c:1293
                       serio_connect_driver drivers/input/serio/serio.c:47 [inline]
                       serio_driver_probe+0x72/0xa0 drivers/input/serio/serio.c:778
                       call_driver_probe drivers/base/dd.c:517 [inline]
                       really_probe+0x23c/0xcd0 drivers/base/dd.c:595
                       __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747
                       driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777
                       __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1136
                       bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301
                       serio_attach_driver drivers/input/serio/serio.c:808 [inline]
                       serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
                       process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
                       worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
                       kthread+0x3e5/0x4d0 kernel/kthread.c:319
                       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
   }
   ... key      at: [<ffffffff90535e60>] __key.8+0x0/0x40
 -> (&client->buffer_lock){....}-{2:2} {
    INITIAL USE at:
                     lock_acquire kernel/locking/lockdep.c:5625 [inline]
                     lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                     __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
                     _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
                     spin_lock include/linux/spinlock.h:354 [inline]
                     evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261
                     evdev_pass_values drivers/input/evdev.c:253 [inline]
                     evdev_events+0x359/0x3e0 drivers/input/evdev.c:306
                     input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
                     input_pass_values.part.0+0x230/0x710 drivers/input/input.c:145
                     input_pass_values drivers/input/input.c:134 [inline]
                     input_handle_event+0x373/0x1440 drivers/input/input.c:404
                     input_inject_event+0x1bd/0x320 drivers/input/input.c:476
                     evdev_write+0x430/0x760 drivers/input/evdev.c:530
                     vfs_write+0x28e/0xa40 fs/read_write.c:603
                     ksys_write+0x1ee/0x250 fs/read_write.c:658
                     do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                     do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
                     entry_SYSCALL_64_after_hwframe+0x44/0xae
  }
  ... key      at: [<ffffffff905362e0>] __key.4+0x0/0x40
  ... acquired at:
   __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
   _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
   spin_lock include/linux/spinlock.h:354 [inline]
   evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261
   evdev_pass_values drivers/input/evdev.c:253 [inline]
   evdev_events+0x359/0x3e0 drivers/input/evdev.c:306
   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
   input_pass_values.part.0+0x230/0x710 drivers/input/input.c:145
   input_pass_values drivers/input/input.c:134 [inline]
   input_handle_event+0x373/0x1440 drivers/input/input.c:404
   input_inject_event+0x1bd/0x320 drivers/input/input.c:476
   evdev_write+0x430/0x760 drivers/input/evdev.c:530
   vfs_write+0x28e/0xa40 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x44/0xae

-> (&new->fa_lock){....}-{2:2} {
   INITIAL READ USE at:
                        lock_acquire kernel/locking/lockdep.c:5625 [inline]
                        lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                        __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                        _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
                        kill_fasync_rcu fs/fcntl.c:1012 [inline]
                        kill_fasync fs/fcntl.c:1033 [inline]
                        kill_fasync+0x132/0x460 fs/fcntl.c:1026
                        __pass_event drivers/input/evdev.c:240 [inline]
                        evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
                        evdev_pass_values drivers/input/evdev.c:253 [inline]
                        evdev_events+0x359/0x3e0 drivers/input/evdev.c:306
                        input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
                        input_pass_values.part.0+0x230/0x710 drivers/input/input.c:145
                        input_pass_values drivers/input/input.c:134 [inline]
                        input_handle_event+0x373/0x1440 drivers/input/input.c:404
                        input_inject_event+0x1bd/0x320 drivers/input/input.c:476
                        evdev_write+0x430/0x760 drivers/input/evdev.c:530
                        vfs_write+0x28e/0xa40 fs/read_write.c:603
                        ksys_write+0x1ee/0x250 fs/read_write.c:658
                        do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                        do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
                        entry_SYSCALL_64_after_hwframe+0x44/0xae
 }
 ... key      at: [<ffffffff90290080>] __key.0+0x0/0x40
 ... acquired at:
   __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
   _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
   kill_fasync_rcu fs/fcntl.c:1012 [inline]
   kill_fasync fs/fcntl.c:1033 [inline]
   kill_fasync+0x132/0x460 fs/fcntl.c:1026
   __pass_event drivers/input/evdev.c:240 [inline]
   evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
   evdev_pass_values drivers/input/evdev.c:253 [inline]
   evdev_events+0x359/0x3e0 drivers/input/evdev.c:306
   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
   input_pass_values.part.0+0x230/0x710 drivers/input/input.c:145
   input_pass_values drivers/input/input.c:134 [inline]
   input_handle_event+0x373/0x1440 drivers/input/input.c:404
   input_inject_event+0x1bd/0x320 drivers/input/input.c:476
   evdev_write+0x430/0x760 drivers/input/evdev.c:530
   vfs_write+0x28e/0xa40 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x44/0xae


the dependencies between the lock to be acquired
 and HARDIRQ-irq-unsafe lock:
-> (&f->f_owner.lock){.+.+}-{2:2} {
   HARDIRQ-ON-R at:
                    lock_acquire kernel/locking/lockdep.c:5625 [inline]
                    lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                    __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                    _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
                    f_getown_ex fs/fcntl.c:211 [inline]
                    do_fcntl+0x8af/0x1210 fs/fcntl.c:395
                    __do_sys_fcntl fs/fcntl.c:471 [inline]
                    __se_sys_fcntl fs/fcntl.c:456 [inline]
                    __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:456
                    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                    do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
                    entry_SYSCALL_64_after_hwframe+0x44/0xae
   SOFTIRQ-ON-R at:
                    lock_acquire kernel/locking/lockdep.c:5625 [inline]
                    lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                    __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                    _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
                    f_getown_ex fs/fcntl.c:211 [inline]
                    do_fcntl+0x8af/0x1210 fs/fcntl.c:395
                    __do_sys_fcntl fs/fcntl.c:471 [inline]
                    __se_sys_fcntl fs/fcntl.c:456 [inline]
                    __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:456
                    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                    do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
                    entry_SYSCALL_64_after_hwframe+0x44/0xae
   INITIAL READ USE at:
                        lock_acquire kernel/locking/lockdep.c:5625 [inline]
                        lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                        __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                        _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
                        f_getown_ex fs/fcntl.c:211 [inline]
                        do_fcntl+0x8af/0x1210 fs/fcntl.c:395
                        __do_sys_fcntl fs/fcntl.c:471 [inline]
                        __se_sys_fcntl fs/fcntl.c:456 [inline]
                        __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:456
                        do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                        do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
                        entry_SYSCALL_64_after_hwframe+0x44/0xae
 }
 ... key      at: [<ffffffff9028f2a0>] __key.5+0x0/0x40
 ... acquired at:
   lock_acquire kernel/locking/lockdep.c:5625 [inline]
   lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
   _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
   send_sigio+0x24/0x380 fs/fcntl.c:795
   kill_fasync_rcu fs/fcntl.c:1019 [inline]
   kill_fasync fs/fcntl.c:1033 [inline]
   kill_fasync+0x1ec/0x460 fs/fcntl.c:1026
   __pass_event drivers/input/evdev.c:240 [inline]
   evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
   evdev_pass_values drivers/input/evdev.c:253 [inline]
   evdev_events+0x359/0x3e0 drivers/input/evdev.c:306
   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
   input_pass_values.part.0+0x230/0x710 drivers/input/input.c:145
   input_pass_values drivers/input/input.c:134 [inline]
   input_handle_event+0x373/0x1440 drivers/input/input.c:404
   input_inject_event+0x1bd/0x320 drivers/input/input.c:476
   evdev_write+0x430/0x760 drivers/input/evdev.c:530
   vfs_write+0x28e/0xa40 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x44/0xae


stack backtrace:
CPU: 0 PID: 8440 Comm: syz-executor042 Not tainted 5.14.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
 print_bad_irq_dependency kernel/locking/lockdep.c:2565 [inline]
 check_irq_usage.cold+0x4c1/0x6b0 kernel/locking/lockdep.c:2804
 check_prev_add kernel/locking/lockdep.c:3055 [inline]
 check_prevs_add kernel/locking/lockdep.c:3174 [inline]
 validate_chain kernel/locking/lockdep.c:3789 [inline]
 __lock_acquire+0x2a1f/0x54a0 kernel/locking/lockdep.c:5015
 lock_acquire kernel/locking/lockdep.c:5625 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
 _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
 send_sigio+0x24/0x380 fs/fcntl.c:795
 kill_fasync_rcu fs/fcntl.c:1019 [inline]
 kill_fasync fs/fcntl.c:1033 [inline]
 kill_fasync+0x1ec/0x460 fs/fcntl.c:1026
 __pass_event drivers/input/evdev.c:240 [inline]
 evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
 evdev_pass_values drivers/input/evdev.c:253 [inline]
 evdev_events+0x359/0x3e0 drivers/input/evdev.c:306
 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
 input_pass_values.part.0+0x230/0x710 drivers/input/input.c:145
 input_pass_values drivers/input/input.c:134 [inline]
 input_handle_event+0x373/0x1440 drivers/input/input.c:404
 input_inject_event+0x1bd/0x320 drivers/input/input.c:476
 evdev_write+0x430/0x760 drivers/input/evdev.c:530
 vfs_write+0x28e/0xa40 fs/read_write.c:603
 ksys_write+0x1ee/0x250 fs/read_write.c:658
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x443559
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc46981a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443559
RDX: 0000000000035000 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 0000000000403100 R08: 00000000004004a0 R09: 00000000004004a0
R10: 00000000004004a0 R11: 0000000000000246 R12: 0000000000403190