syzbot

=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
6.1.74-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor283/3542 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff8880153a90c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:996 [inline]
ffff8880153a90c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x196/0x4d0 fs/fcntl.c:1017

and this task is already holding:
ffff888024c57028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
ffff888024c57028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
which would create a new lock dependency:
 (&client->buffer_lock){....}-{2:2} -> (&new->fa_lock){....}-{2:2}

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

... which became HARDIRQ-irq-safe at:
  lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
  __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
  _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
  input_event+0x8d/0xd0 drivers/input/input.c:430
  input_report_key include/linux/input.h:425 [inline]
  psmouse_report_standard_buttons drivers/input/mouse/psmouse-base.c:121 [inline]
  psmouse_report_standard_packet+0x50/0x200 drivers/input/mouse/psmouse-base.c:139
  psmouse_process_byte+0x45b/0x640 drivers/input/mouse/psmouse-base.c:230
  psmouse_handle_byte+0x46/0x4b0 drivers/input/mouse/psmouse-base.c:272
  psmouse_interrupt+0x697/0x10a0 drivers/input/mouse/psmouse-base.c:424
  serio_interrupt+0x88/0x130 drivers/input/serio/serio.c:998
  i8042_interrupt+0x357/0x750 drivers/input/serio/i8042.c:606
  __handle_irq_event_percpu+0x2a8/0xb20 kernel/irq/handle.c:158
  handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
  handle_irq_event+0x85/0x1e0 kernel/irq/handle.c:210
  handle_edge_irq+0x245/0xbf0 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+0xd7/0x1f0 arch/x86/kernel/irq.c:250
  common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240
  asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:644
  __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
  _raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
  spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
  i8042_command drivers/input/serio/i8042.c:356 [inline]
  i8042_aux_write+0x112/0x190 drivers/input/serio/i8042.c:391
  serio_write include/linux/serio.h:125 [inline]
  ps2_do_sendbyte+0x20a/0x720 drivers/input/serio/libps2.c:41
  ps2_sendbyte+0x5c/0x120 drivers/input/serio/libps2.c:93
  cypress_ps2_sendbyte drivers/input/mouse/cypress_ps2.c:42 [inline]
  cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:116 [inline]
  cypress_send_ext_cmd+0x21d/0x900 drivers/input/mouse/cypress_ps2.c:189
  cypress_detect+0x8f/0x220 drivers/input/mouse/cypress_ps2.c:205
  psmouse_do_detect drivers/input/mouse/psmouse-base.c:1007 [inline]
  psmouse_try_protocol drivers/input/mouse/psmouse-base.c:1021 [inline]
  psmouse_extensions+0xc2a/0x1550 drivers/input/mouse/psmouse-base.c:1144
  psmouse_switch_protocol+0x308/0x840 drivers/input/mouse/psmouse-base.c:1538
  psmouse_connect+0x903/0x14c0 drivers/input/mouse/psmouse-base.c:1628
  serio_connect_driver drivers/input/serio/serio.c:44 [inline]
  serio_driver_probe+0x74/0x90 drivers/input/serio/serio.c:775
  really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
  __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
  driver_probe_device+0x50/0x420 drivers/base/dd.c:815
  __driver_attach+0x458/0x6f0 drivers/base/dd.c:1201
  bus_for_each_dev+0x17c/0x1f0 drivers/base/bus.c:301
  serio_attach_driver drivers/input/serio/serio.c:804 [inline]
  serio_handle_event+0x56a/0x8f0 drivers/input/serio/serio.c:224
  process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
  worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
  kthread+0x28d/0x320 kernel/kthread.c:376
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

to a HARDIRQ-irq-unsafe lock:
 (tasklist_lock){.+.+}-{2:2}

... which became HARDIRQ-irq-unsafe at:
...
  lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
  __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
  _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
  do_wait+0x2c6/0xb80 kernel/exit.c:1602
  kernel_wait+0xe5/0x230 kernel/exit.c:1792
  call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
  call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
  process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
  worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
  kthread+0x28d/0x320 kernel/kthread.c:376
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

other info that might help us debug this:

Chain exists of:
  &dev->event_lock#2 --> &client->buffer_lock --> tasklist_lock

 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(tasklist_lock);
                               local_irq_disable();
                               lock(&dev->event_lock#2);
                               lock(&client->buffer_lock);
  <Interrupt>
    lock(&dev->event_lock#2);

 *** DEADLOCK ***

7 locks held by syz-executor283/3542:
 #0: ffff888022fc2110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x26d/0x7c0 drivers/input/evdev.c:513
 #1: ffff88814628f230 (&dev->event_lock#2){-...}-{2:2}, at: input_inject_event+0xc1/0x330 drivers/input/input.c:456
 #2: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
 #2: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #2: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0xd1/0x330 drivers/input/input.c:458
 #3: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
 #3: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #3: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: input_pass_values+0xa3/0x12a0 drivers/input/input.c:151
 #4: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
 #4: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #4: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x6b/0x2f0 drivers/input/evdev.c:298
 #5: ffff888024c57028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
 #5: ffff888024c57028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
 #6: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
 #6: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #6: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x51/0x4d0 fs/fcntl.c:1016

the dependencies between HARDIRQ-irq-safe lock and the holding lock:
 -> (&dev->event_lock#2){-...}-{2:2} {
    IN-HARDIRQ-W at:
                      lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                      __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                      _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
                      input_event+0x8d/0xd0 drivers/input/input.c:430
                      input_report_key include/linux/input.h:425 [inline]
                      psmouse_report_standard_buttons drivers/input/mouse/psmouse-base.c:121 [inline]
                      psmouse_report_standard_packet+0x50/0x200 drivers/input/mouse/psmouse-base.c:139
                      psmouse_process_byte+0x45b/0x640 drivers/input/mouse/psmouse-base.c:230
                      psmouse_handle_byte+0x46/0x4b0 drivers/input/mouse/psmouse-base.c:272
                      psmouse_interrupt+0x697/0x10a0 drivers/input/mouse/psmouse-base.c:424
                      serio_interrupt+0x88/0x130 drivers/input/serio/serio.c:998
                      i8042_interrupt+0x357/0x750 drivers/input/serio/i8042.c:606
                      __handle_irq_event_percpu+0x2a8/0xb20 kernel/irq/handle.c:158
                      handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
                      handle_irq_event+0x85/0x1e0 kernel/irq/handle.c:210
                      handle_edge_irq+0x245/0xbf0 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+0xd7/0x1f0 arch/x86/kernel/irq.c:250
                      common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240
                      asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:644
                      __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
                      _raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
                      spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
                      i8042_command drivers/input/serio/i8042.c:356 [inline]
                      i8042_aux_write+0x112/0x190 drivers/input/serio/i8042.c:391
                      serio_write include/linux/serio.h:125 [inline]
                      ps2_do_sendbyte+0x20a/0x720 drivers/input/serio/libps2.c:41
                      ps2_sendbyte+0x5c/0x120 drivers/input/serio/libps2.c:93
                      cypress_ps2_sendbyte drivers/input/mouse/cypress_ps2.c:42 [inline]
                      cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:116 [inline]
                      cypress_send_ext_cmd+0x21d/0x900 drivers/input/mouse/cypress_ps2.c:189
                      cypress_detect+0x8f/0x220 drivers/input/mouse/cypress_ps2.c:205
                      psmouse_do_detect drivers/input/mouse/psmouse-base.c:1007 [inline]
                      psmouse_try_protocol drivers/input/mouse/psmouse-base.c:1021 [inline]
                      psmouse_extensions+0xc2a/0x1550 drivers/input/mouse/psmouse-base.c:1144
                      psmouse_switch_protocol+0x308/0x840 drivers/input/mouse/psmouse-base.c:1538
                      psmouse_connect+0x903/0x14c0 drivers/input/mouse/psmouse-base.c:1628
                      serio_connect_driver drivers/input/serio/serio.c:44 [inline]
                      serio_driver_probe+0x74/0x90 drivers/input/serio/serio.c:775
                      really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
                      __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
                      driver_probe_device+0x50/0x420 drivers/base/dd.c:815
                      __driver_attach+0x458/0x6f0 drivers/base/dd.c:1201
                      bus_for_each_dev+0x17c/0x1f0 drivers/base/bus.c:301
                      serio_attach_driver drivers/input/serio/serio.c:804 [inline]
                      serio_handle_event+0x56a/0x8f0 drivers/input/serio/serio.c:224
                      process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
                      worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
                      kthread+0x28d/0x320 kernel/kthread.c:376
                      ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
    INITIAL USE at:
                     lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                     __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                     _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
                     input_inject_event+0xc1/0x330 drivers/input/input.c:456
                     led_trigger_event+0x114/0x1d0 drivers/leds/led-triggers.c:390
                     kbd_led_trigger_activate+0xb9/0x100 drivers/tty/vt/keyboard.c:1036
                     led_trigger_set+0x53a/0x910 drivers/leds/led-triggers.c:197
                     led_trigger_set_default+0x1c2/0x200 drivers/leds/led-triggers.c:262
                     led_classdev_register_ext+0x600/0x7e0 drivers/leds/led-class.c:419
                     led_classdev_register include/linux/leds.h:196 [inline]
                     input_leds_connect+0x48f/0x630 drivers/input/input-leds.c:139
                     input_attach_handler drivers/input/input.c:1060 [inline]
                     input_register_device+0xcec/0x1080 drivers/input/input.c:2396
                     atkbd_connect+0x79d/0x9e0 drivers/input/keyboard/atkbd.c:1316
                     serio_connect_driver drivers/input/serio/serio.c:44 [inline]
                     serio_driver_probe+0x74/0x90 drivers/input/serio/serio.c:775
                     really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
                     __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
                     driver_probe_device+0x50/0x420 drivers/base/dd.c:815
                     __driver_attach+0x458/0x6f0 drivers/base/dd.c:1201
                     bus_for_each_dev+0x17c/0x1f0 drivers/base/bus.c:301
                     serio_attach_driver drivers/input/serio/serio.c:804 [inline]
                     serio_handle_event+0x56a/0x8f0 drivers/input/serio/serio.c:224
                     process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
                     worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
                     kthread+0x28d/0x320 kernel/kthread.c:376
                     ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
  }
  ... key      at: [<ffffffff9204d340>] input_allocate_device.__key.5+0x0/0x20
-> (&client->buffer_lock){....}-{2:2} {
   INITIAL USE at:
                   lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                   __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
                   _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
                   spin_lock include/linux/spinlock.h:350 [inline]
                   evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
                   evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
                   input_to_handler drivers/input/input.c:127 [inline]
                   input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
                   input_event_dispose+0x366/0x650 drivers/input/input.c:374
                   input_handle_event+0x97d/0xb00 drivers/input/input.c:402
                   input_inject_event+0x224/0x330 drivers/input/input.c:461
                   evdev_write+0x668/0x7c0 drivers/input/evdev.c:530
                   vfs_write+0x2d9/0xba0 fs/read_write.c:582
                   ksys_write+0x19c/0x2c0 fs/read_write.c:637
                   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
                   do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
                   entry_SYSCALL_64_after_hwframe+0x63/0xcd
 }
 ... key      at: [<ffffffff9204d600>] evdev_open.__key.25+0x0/0x20
 ... acquired at:
   lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
   __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
   _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
   spin_lock include/linux/spinlock.h:350 [inline]
   evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
   evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
   input_to_handler drivers/input/input.c:127 [inline]
   input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
   input_event_dispose+0x366/0x650 drivers/input/input.c:374
   input_handle_event+0x97d/0xb00 drivers/input/input.c:402
   input_inject_event+0x224/0x330 drivers/input/input.c:461
   evdev_write+0x668/0x7c0 drivers/input/evdev.c:530
   vfs_write+0x2d9/0xba0 fs/read_write.c:582
   ksys_write+0x19c/0x2c0 fs/read_write.c:637
   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
   do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
   entry_SYSCALL_64_after_hwframe+0x63/0xcd


the dependencies between the lock to be acquired
 and HARDIRQ-irq-unsafe lock:
  -> (tasklist_lock){.+.+}-{2:2} {
     HARDIRQ-ON-R at:
                        lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                        __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
                        _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
                        do_wait+0x2c6/0xb80 kernel/exit.c:1602
                        kernel_wait+0xe5/0x230 kernel/exit.c:1792
                        call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
                        call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
                        process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
                        worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
                        kthread+0x28d/0x320 kernel/kthread.c:376
                        ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
     SOFTIRQ-ON-R at:
                        lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                        __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
                        _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
                        do_wait+0x2c6/0xb80 kernel/exit.c:1602
                        kernel_wait+0xe5/0x230 kernel/exit.c:1792
                        call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
                        call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
                        process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
                        worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
                        kthread+0x28d/0x320 kernel/kthread.c:376
                        ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
     INITIAL USE at:
                       lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                       __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
                       _raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:326
                       copy_process+0x24b6/0x4060 kernel/fork.c:2401
                       kernel_clone+0x222/0x920 kernel/fork.c:2682
                       user_mode_thread+0x12e/0x190 kernel/fork.c:2758
                       rest_init+0x23/0x300 init/main.c:696
                       start_kernel+0x0/0x53f init/main.c:891
                       start_kernel+0x496/0x53f init/main.c:1138
                       secondary_startup_64_no_verify+0xcf/0xdb
     INITIAL READ USE at:
                            lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                            __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
                            _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
                            do_wait+0x2c6/0xb80 kernel/exit.c:1602
                            kernel_wait+0xe5/0x230 kernel/exit.c:1792
                            call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
                            call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
                            process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
                            worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
                            kthread+0x28d/0x320 kernel/kthread.c:376
                            ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
   }
   ... key      at: [<ffffffff8ce0a058>] tasklist_lock+0x18/0x40
   ... acquired at:
   lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
   __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
   _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
   send_sigio+0xf8/0x360 fs/fcntl.c:792
   kill_fasync_rcu fs/fcntl.c:1003 [inline]
   kill_fasync+0x232/0x4d0 fs/fcntl.c:1017
   lease_break_callback+0x22/0x30 fs/locks.c:521
   __break_lease+0x4d1/0x1550 fs/locks.c:1521
   break_lease include/linux/fs.h:2698 [inline]
   do_dentry_open+0x76c/0x10f0 fs/open.c:873
   do_open fs/namei.c:3634 [inline]
   path_openat+0x2644/0x2e60 fs/namei.c:3791
   do_filp_open+0x230/0x480 fs/namei.c:3818
   do_sys_openat2+0x13b/0x500 fs/open.c:1318
   do_sys_open fs/open.c:1334 [inline]
   __do_sys_open fs/open.c:1342 [inline]
   __se_sys_open fs/open.c:1338 [inline]
   __x64_sys_open+0x221/0x270 fs/open.c:1338
   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
   do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

 -> (&f->f_owner.lock){....}-{2:2} {
    INITIAL USE at:
                     lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                     __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
                     _raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:326
                     f_modown+0x38/0x340 fs/fcntl.c:91
                     __f_setown fs/fcntl.c:110 [inline]
                     f_setown_ex fs/fcntl.c:200 [inline]
                     do_fcntl+0x1128/0x14f0 fs/fcntl.c:383
                     __do_sys_fcntl fs/fcntl.c:454 [inline]
                     __se_sys_fcntl+0xd5/0x1b0 fs/fcntl.c:439
                     do_syscall_x64 arch/x86/entry/common.c:51 [inline]
                     do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
                     entry_SYSCALL_64_after_hwframe+0x63/0xcd
    INITIAL READ USE at:
                          lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                          __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
                          _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
                          send_sigio+0x2f/0x360 fs/fcntl.c:778
                          kill_fasync_rcu fs/fcntl.c:1003 [inline]
                          kill_fasync+0x232/0x4d0 fs/fcntl.c:1017
                          lease_break_callback+0x22/0x30 fs/locks.c:521
                          __break_lease+0x4d1/0x1550 fs/locks.c:1521
                          break_lease include/linux/fs.h:2698 [inline]
                          do_dentry_open+0x76c/0x10f0 fs/open.c:873
                          do_open fs/namei.c:3634 [inline]
                          path_openat+0x2644/0x2e60 fs/namei.c:3791
                          do_filp_open+0x230/0x480 fs/namei.c:3818
                          do_sys_openat2+0x13b/0x500 fs/open.c:1318
                          do_sys_open fs/open.c:1334 [inline]
                          __do_sys_open fs/open.c:1342 [inline]
                          __se_sys_open fs/open.c:1338 [inline]
                          __x64_sys_open+0x221/0x270 fs/open.c:1338
                          do_syscall_x64 arch/x86/entry/common.c:51 [inline]
                          do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
                          entry_SYSCALL_64_after_hwframe+0x63/0xcd
  }
  ... key      at: [<ffffffff91d53420>] __alloc_file.__key+0x0/0x10
  ... acquired at:
   lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
   _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
   send_sigio+0x2f/0x360 fs/fcntl.c:778
   kill_fasync_rcu fs/fcntl.c:1003 [inline]
   kill_fasync+0x232/0x4d0 fs/fcntl.c:1017
   lease_break_callback+0x22/0x30 fs/locks.c:521
   __break_lease+0x4d1/0x1550 fs/locks.c:1521
   break_lease include/linux/fs.h:2698 [inline]
   do_dentry_open+0x76c/0x10f0 fs/open.c:873
   do_open fs/namei.c:3634 [inline]
   path_openat+0x2644/0x2e60 fs/namei.c:3791
   do_filp_open+0x230/0x480 fs/namei.c:3818
   do_sys_openat2+0x13b/0x500 fs/open.c:1318
   do_sys_open fs/open.c:1334 [inline]
   __do_sys_open fs/open.c:1342 [inline]
   __se_sys_open fs/open.c:1338 [inline]
   __x64_sys_open+0x221/0x270 fs/open.c:1338
   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
   do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

-> (&new->fa_lock){....}-{2:2} {
   INITIAL READ USE at:
                        lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
                        __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
                        _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
                        kill_fasync_rcu fs/fcntl.c:996 [inline]
                        kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
                        lease_break_callback+0x22/0x30 fs/locks.c:521
                        __break_lease+0x4d1/0x1550 fs/locks.c:1521
                        break_lease include/linux/fs.h:2698 [inline]
                        do_dentry_open+0x76c/0x10f0 fs/open.c:873
                        do_open fs/namei.c:3634 [inline]
                        path_openat+0x2644/0x2e60 fs/namei.c:3791
                        do_filp_open+0x230/0x480 fs/namei.c:3818
                        do_sys_openat2+0x13b/0x500 fs/open.c:1318
                        do_sys_open fs/open.c:1334 [inline]
                        __do_sys_open fs/open.c:1342 [inline]
                        __se_sys_open fs/open.c:1338 [inline]
                        __x64_sys_open+0x221/0x270 fs/open.c:1338
                        do_syscall_x64 arch/x86/entry/common.c:51 [inline]
                        do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
                        entry_SYSCALL_64_after_hwframe+0x63/0xcd
 }
 ... key      at: [<ffffffff91d540a0>] fasync_insert_entry.__key+0x0/0x20
 ... acquired at:
   lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
   _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
   kill_fasync_rcu fs/fcntl.c:996 [inline]
   kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
   __pass_event drivers/input/evdev.c:240 [inline]
   evdev_pass_values+0x586/0xad0 drivers/input/evdev.c:278
   evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
   input_to_handler drivers/input/input.c:127 [inline]
   input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
   input_event_dispose+0x366/0x650 drivers/input/input.c:374
   input_handle_event+0x97d/0xb00 drivers/input/input.c:402
   input_inject_event+0x224/0x330 drivers/input/input.c:461
   evdev_write+0x668/0x7c0 drivers/input/evdev.c:530
   vfs_write+0x2d9/0xba0 fs/read_write.c:582
   ksys_write+0x19c/0x2c0 fs/read_write.c:637
   do_syscall_x64 arch/x86/entry/common.c:51 [inline]
   do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
   entry_SYSCALL_64_after_hwframe+0x63/0xcd


stack backtrace:
CPU: 1 PID: 3542 Comm: syz-executor283 Not tainted 6.1.74-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_bad_irq_dependency kernel/locking/lockdep.c:2604 [inline]
 check_irq_usage kernel/locking/lockdep.c:2843 [inline]
 check_prev_add kernel/locking/lockdep.c:3094 [inline]
 check_prevs_add kernel/locking/lockdep.c:3209 [inline]
 validate_chain+0x4d16/0x5950 kernel/locking/lockdep.c:3825
 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
 _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
 kill_fasync_rcu fs/fcntl.c:996 [inline]
 kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
 __pass_event drivers/input/evdev.c:240 [inline]
 evdev_pass_values+0x586/0xad0 drivers/input/evdev.c:278
 evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
 input_to_handler drivers/input/input.c:127 [inline]
 input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
 input_event_dispose+0x366/0x650 drivers/input/input.c:374
 input_handle_event+0x97d/0xb00 drivers/input/input.c:402
 input_inject_event+0x224/0x330 drivers/input/input.c:461
 evdev_write+0x668/0x7c0 drivers/input/evdev.c:530
 vfs_write+0x2d9/0xba0 fs/read_write.c:582
 ksys_write+0x19c/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f23e46acf79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007f23e466c228 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f23e4734408 RCX: 00007f23e46acf79
RDX: 0000000000002ad8 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f23e4734400 R08: 00007f23e466c6c0 R0