syzbot

=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
5.15.0-rc6-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor365/6543 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffffffff8b60a098 (tasklist_lock){.+.+}-{2:2}, at: send_sigio+0xab/0x380 fs/fcntl.c:810

and this task is already holding:
ffff8880737dbcb8 (&f->f_owner.lock){....}-{2:2}, at: send_sigio+0x24/0x380 fs/fcntl.c:796
which would create a new lock dependency:
 (&f->f_owner.lock){....}-{2:2} -> (tasklist_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:162
  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:1001
  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:822
  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:194
  spin_unlock_irqrestore include/linux/spinlock.h:418 [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+0x245/0xcc0 drivers/base/dd.c:596
  __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
  driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
  __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1140
  bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301
  serio_attach_driver drivers/input/serio/serio.c:807 [inline]
  serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
  process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
  worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
  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:
 (tasklist_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:228
  do_wait+0x284/0xce0 kernel/exit.c:1504
  kernel_wait+0x9c/0x150 kernel/exit.c:1694
  call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
  call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
  process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
  worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
  kthread+0x3e5/0x4d0 kernel/kthread.c:319
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

other info that might help us debug this:

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

 Possible interrupt unsafe locking scenario:

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

 *** DEADLOCK ***

5 locks held by syz-executor365/6543:
 #0: ffffffff8b981b20 (rcu_read_lock){....}-{1:2}, at: sock_def_readable+0x0/0x4e0 include/trace/events/sock.h:204
 #1: ffffffff8b981b20 (rcu_read_lock){....}-{1:2}, at: rcu_read_unlock include/linux/rcupdate.h:716 [inline]
 #1: ffffffff8b981b20 (rcu_read_lock){....}-{1:2}, at: sock_def_readable+0x2aa/0x4e0 net/core/sock.c:3057
 #2: ffffffff8b981b20 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x41/0x470 fs/fcntl.c:1033
 #3: ffff8880197450c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1014 [inline]
 #3: ffff8880197450c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1035 [inline]
 #3: ffff8880197450c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x136/0x470 fs/fcntl.c:1028
 #4: ffff8880737dbcb8 (&f->f_owner.lock){....}-{2:2}, at: send_sigio+0x24/0x380 fs/fcntl.c:796

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:162
                          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:1001
                          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:822
                          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:194
                          spin_unlock_irqrestore include/linux/spinlock.h:418 [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+0x245/0xcc0 drivers/base/dd.c:596
                          __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
                          driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
                          __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1140
                          bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301
                          serio_attach_driver drivers/input/serio/serio.c:807 [inline]
                          serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
                          process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
                          worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
                          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:162
                         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+0x622/0x850 drivers/leds/led-class.c:417
                         led_classdev_register include/linux/leds.h:196 [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+0x245/0xcc0 drivers/base/dd.c:596
                         __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
                         driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
                         __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1140
                         bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301
                         serio_attach_driver drivers/input/serio/serio.c:807 [inline]
                         serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
                         process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
                         worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
                         kthread+0x3e5/0x4d0 kernel/kthread.c:319
                         ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
    }
    ... key      at: [<ffffffff90563dc0>] __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:154
                       spin_lock include/linux/spinlock.h:363 [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/0xae0 fs/read_write.c:592
                       ksys_write+0x1ee/0x250 fs/read_write.c:647
                       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: [<ffffffff90564240>] __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:154
   spin_lock include/linux/spinlock.h:363 [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/0xae0 fs/read_write.c:592
   ksys_write+0x1ee/0x250 fs/read_write.c:647
   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_irqsave include/linux/rwlock_api_smp.h:159 [inline]
                          _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
                          kill_fasync_rcu fs/fcntl.c:1014 [inline]
                          kill_fasync fs/fcntl.c:1035 [inline]
                          kill_fasync+0x136/0x470 fs/fcntl.c:1028
                          __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/0xae0 fs/read_write.c:592
                          ksys_write+0x1ee/0x250 fs/read_write.c:647
                          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: [<ffffffff902bf440>] __key.0+0x0/0x40
  ... acquired at:
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
   _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
   kill_fasync_rcu fs/fcntl.c:1014 [inline]
   kill_fasync fs/fcntl.c:1035 [inline]
   kill_fasync+0x136/0x470 fs/fcntl.c:1028
   __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/0xae0 fs/read_write.c:592
   ksys_write+0x1ee/0x250 fs/read_write.c:647
   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

-> (&f->f_owner.lock){....}-{2:2} {
   INITIAL USE at:
                   lock_acquire kernel/locking/lockdep.c:5625 [inline]
                   lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
                   __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
                   _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:316
                   f_modown+0x2a/0x390 fs/fcntl.c:91
                   __f_setown fs/fcntl.c:110 [inline]
                   f_setown+0xd7/0x230 fs/fcntl.c:138
                   sock_ioctl+0x37e/0x640 net/socket.c:1178
                   vfs_ioctl fs/ioctl.c:51 [inline]
                   __do_sys_ioctl fs/ioctl.c:874 [inline]
                   __se_sys_ioctl fs/ioctl.c:860 [inline]
                   __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
                   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_irqsave include/linux/rwlock_api_smp.h:159 [inline]
                        _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
                        send_sigio+0x24/0x380 fs/fcntl.c:796
                        kill_fasync_rcu fs/fcntl.c:1021 [inline]
                        kill_fasync fs/fcntl.c:1035 [inline]
                        kill_fasync+0x1f8/0x470 fs/fcntl.c:1028
                        __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/0xae0 fs/read_write.c:592
                        ksys_write+0x1ee/0x250 fs/read_write.c:647
                        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: [<ffffffff902be660>] __key.5+0x0/0x40
 ... acquired at:
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
   _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
   send_sigio+0x24/0x380 fs/fcntl.c:796
   kill_fasync_rcu fs/fcntl.c:1021 [inline]
   kill_fasync fs/fcntl.c:1035 [inline]
   kill_fasync+0x1f8/0x470 fs/fcntl.c:1028
   __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/0xae0 fs/read_write.c:592
   ksys_write+0x1ee/0x250 fs/read_write.c:647
   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:
-> (tasklist_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:228
                    do_wait+0x284/0xce0 kernel/exit.c:1504
                    kernel_wait+0x9c/0x150 kernel/exit.c:1694
                    call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
                    call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
                    process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
                    worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
                    kthread+0x3e5/0x4d0 kernel/kthread.c:319
                    ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
   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:228
                    do_wait+0x284/0xce0 kernel/exit.c:1504
                    kernel_wait+0x9c/0x150 kernel/exit.c:1694
                    call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
                    call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
                    process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
                    worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
                    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_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
                   _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:316
                   copy_process+0x36c0/0x7590 kernel/fork.c:2313
                   kernel_clone+0xe7/0xac0 kernel/fork.c:2584
                   kernel_thread+0xb5/0xf0 kernel/fork.c:2636
                   rest_init+0x23/0x3e0 init/main.c:699
                   start_kernel+0x47a/0x49b init/main.c:1142
                   secondary_startup_64_no_verify+0xb0/0xbb
   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:228
                        do_wait+0x284/0xce0 kernel/exit.c:1504
                        kernel_wait+0x9c/0x150 kernel/exit.c:1694
                        call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
                        call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
                        process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
                        worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
                        kthread+0x3e5/0x4d0 kernel/kthread.c:319
                        ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 }
 ... key      at: [<ffffffff8b60a098>] tasklist_lock+0x18/0x40
 ... acquired 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:228
   send_sigio+0xab/0x380 fs/fcntl.c:810
   kill_fasync_rcu fs/fcntl.c:1021 [inline]
   kill_fasync fs/fcntl.c:1035 [inline]
   kill_fasync+0x1f8/0x470 fs/fcntl.c:1028
   sock_wake_async+0xd2/0x160 net/socket.c:1368
   sk_wake_async include/net/sock.h:2368 [inline]
   sk_wake_async include/net/sock.h:2364 [inline]
   sock_def_readable+0x349/0x4e0 net/core/sock.c:3056
   unix_dgram_sendmsg+0xfa7/0x1950 net/unix/af_unix.c:1941
   sock_sendmsg_nosec net/socket.c:704 [inline]
   sock_sendmsg+0xcf/0x120 net/socket.c:724
   ____sys_sendmsg+0x331/0x810 net/socket.c:2409
   ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
   __sys_sendmmsg+0x195/0x470 net/socket.c:2549
   __do_sys_sendmmsg net/socket.c:2578 [inline]
   __se_sys_sendmmsg net/socket.c:2575 [inline]
   __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575
   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: 1 PID: 6543 Comm: syz-executor365 Not tainted 5.15.0-rc6-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:106
 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 include/linux/rwlock_api_smp.h:149 [inline]
 _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
 send_sigio+0xab/0x380 fs/fcntl.c:810
 kill_fasync_rcu fs/fcntl.c:1021 [inline]
 kill_fasync fs/fcntl.c:1035 [inline]
 kill_fasync+0x1f8/0x470 fs/fcntl.c:1028
 sock_wake_async+0xd2/0x160 net/socket.c:1368
 sk_wake_async include/net/sock.h:2368 [inline]
 sk_wake_async include/net/sock.h:2364 [inline]
 sock_def_readable+0x349/0x4e0 net/core/sock.c:3056
 unix_dgram_sendmsg+0xfa7/0x1950 net/unix/af_unix.c:1941
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x331/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmmsg+0x195/0x470 net/socket.c:2549
 __do_sys_sendmmsg net/socket.c:2578 [inline]
 __se_sys_sendmmsg net/socket.c:2575 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575
 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: 0033:0x7f877ea95759
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:00007ffd61e762e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f877ea95759
RDX: 0307017fdb7a66cb RSI: 0000000020002dc0