=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
6.2.0-rc6-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor.3/17854 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff888028c78a98 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:996 [inline]
ffff888028c78a98 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1017 [inline]
ffff888028c78a98 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x13a/0x480 fs/fcntl.c:1010

and this task is already holding:
ffff888049d02028 (&client->buffer_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
ffff888049d02028 (&client->buffer_lock){..-.}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x960 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 SOFTIRQ-irq-safe lock:
 (&client->buffer_lock){..-.}-{2:2}

... which became SOFTIRQ-irq-safe at:
  lock_acquire kernel/locking/lockdep.c:5668 [inline]
  lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
  __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
  _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
  spin_lock include/linux/spinlock.h:350 [inline]
  evdev_pass_values.part.0+0xf6/0x960 drivers/input/evdev.c:261
  evdev_pass_values drivers/input/evdev.c:253 [inline]
  evdev_events+0x35d/0x3e0 drivers/input/evdev.c:306
  input_to_handler+0x2a0/0x4c0 drivers/input/input.c:128
  input_pass_values.part.0+0x230/0x710 drivers/input/input.c:160
  input_pass_values drivers/input/input.c:149 [inline]
  input_event_dispose+0x537/0x730 drivers/input/input.c:386
  input_handle_event+0x120/0xe70 drivers/input/input.c:403
  input_event drivers/input/input.c:432 [inline]
  input_event+0x83/0xa0 drivers/input/input.c:424
  hidinput_hid_event+0xa2a/0x2010 drivers/hid/hid-input.c:1649
  hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1530
  hid_input_array_field+0x4d7/0x660 drivers/hid/hid-core.c:1642
  hid_process_report drivers/hid/hid-core.c:1684 [inline]
  hid_report_raw_event+0xa89/0x1270 drivers/hid/hid-core.c:2001
  hid_input_report+0x363/0x4d0 drivers/hid/hid-core.c:2069
  hid_irq_in+0x50f/0x690 drivers/hid/usbhid/hid-core.c:284
  __usb_hcd_giveback_urb+0x2b6/0x5c0 drivers/usb/core/hcd.c:1671
  usb_hcd_giveback_urb+0x384/0x430 drivers/usb/core/hcd.c:1754
  dummy_timer+0x1203/0x32d0 drivers/usb/gadget/udc/dummy_hcd.c:1988
  call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1700
  expire_timers+0x2c6/0x5c0 kernel/time/timer.c:1751
  __run_timers kernel/time/timer.c:2022 [inline]
  __run_timers kernel/time/timer.c:1995 [inline]
  run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
  __do_softirq+0x1fb/0xadc kernel/softirq.c:571
  invoke_softirq kernel/softirq.c:445 [inline]
  __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
  irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
  sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
  asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
  get_current arch/x86/include/asm/current.h:41 [inline]
  __sanitizer_cov_trace_pc+0x20/0x70 kernel/kcov.c:206
  do_csum+0x28d/0x2e0 lib/checksum.c:97
  ip_fast_csum+0x1f/0x30 lib/checksum.c:108
  nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:774 [inline]
  nsim_dev_trap_report drivers/net/netdevsim/dev.c:808 [inline]
  nsim_dev_trap_report_work+0x66f/0xc80 drivers/net/netdevsim/dev.c:853
  process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
  worker_thread+0x669/0x1090 kernel/workqueue.c:2436
  kthread+0x2e8/0x3a0 kernel/kthread.c:376
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

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

... which became SOFTIRQ-irq-unsafe at:
...
  lock_acquire kernel/locking/lockdep.c:5668 [inline]
  lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
  __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
  _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228
  do_wait+0x2b7/0xd70 kernel/exit.c:1595
  kernel_wait+0xa0/0x150 kernel/exit.c:1785
  call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
  call_usermodehelper_exec_work+0xf9/0x180 kernel/umh.c:167
  process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
  worker_thread+0x669/0x1090 kernel/workqueue.c:2436
  kthread+0x2e8/0x3a0 kernel/kthread.c:376
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

other info that might help us debug this:

Chain exists of:
  &client->buffer_lock --> &new->fa_lock --> tasklist_lock

 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(tasklist_lock);
                               local_irq_disable();
                               lock(&client->buffer_lock);
                               lock(&new->fa_lock);
  <Interrupt>
    lock(&client->buffer_lock);

 *** DEADLOCK ***

7 locks held by syz-executor.3/17854:
 #0: ffff888147be2110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d7/0x760 drivers/input/evdev.c:513
 #1: ffff88801bdb0230 (&dev->event_lock#2){-.-.}-{2:2}, at: input_inject_event+0x9f/0x330 drivers/input/input.c:457
 #2: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:66 [inline]
 #2: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:63 [inline]
 #2: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x8b/0x330 drivers/input/input.c:456
 #3: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:2523
 #4: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x5d/0x3e0 drivers/input/evdev.c:296
 #5: ffff888049d02028 (&client->buffer_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
 #5: ffff888049d02028 (&client->buffer_lock){..-.}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x960 drivers/input/evdev.c:261
 #6: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x45/0x480 fs/fcntl.c:1015

the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
-> (&client->buffer_lock){..-.}-{2:2} {
   IN-SOFTIRQ-W at:
                    lock_acquire kernel/locking/lockdep.c:5668 [inline]
                    lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                    __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
                    _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
                    spin_lock include/linux/spinlock.h:350 [inline]
                    evdev_pass_values.part.0+0xf6/0x960 drivers/input/evdev.c:261
                    evdev_pass_values drivers/input/evdev.c:253 [inline]
                    evdev_events+0x35d/0x3e0 drivers/input/evdev.c:306
                    input_to_handler+0x2a0/0x4c0 drivers/input/input.c:128
                    input_pass_values.part.0+0x230/0x710 drivers/input/input.c:160
                    input_pass_values drivers/input/input.c:149 [inline]
                    input_event_dispose+0x537/0x730 drivers/input/input.c:386
                    input_handle_event+0x120/0xe70 drivers/input/input.c:403
                    input_event drivers/input/input.c:432 [inline]
                    input_event+0x83/0xa0 drivers/input/input.c:424
                    hidinput_hid_event+0xa2a/0x2010 drivers/hid/hid-input.c:1649
                    hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1530
                    hid_input_array_field+0x4d7/0x660 drivers/hid/hid-core.c:1642
                    hid_process_report drivers/hid/hid-core.c:1684 [inline]
                    hid_report_raw_event+0xa89/0x1270 drivers/hid/hid-core.c:2001
                    hid_input_report+0x363/0x4d0 drivers/hid/hid-core.c:2069
                    hid_irq_in+0x50f/0x690 drivers/hid/usbhid/hid-core.c:284
                    __usb_hcd_giveback_urb+0x2b6/0x5c0 drivers/usb/core/hcd.c:1671
                    usb_hcd_giveback_urb+0x384/0x430 drivers/usb/core/hcd.c:1754
                    dummy_timer+0x1203/0x32d0 drivers/usb/gadget/udc/dummy_hcd.c:1988
                    call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1700
                    expire_timers+0x2c6/0x5c0 kernel/time/timer.c:1751
                    __run_timers kernel/time/timer.c:2022 [inline]
                    __run_timers kernel/time/timer.c:1995 [inline]
                    run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
                    __do_softirq+0x1fb/0xadc kernel/softirq.c:571
                    invoke_softirq kernel/softirq.c:445 [inline]
                    __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
                    irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
                    sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
                    asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
                    get_current arch/x86/include/asm/current.h:41 [inline]
                    __sanitizer_cov_trace_pc+0x20/0x70 kernel/kcov.c:206
                    do_csum+0x28d/0x2e0 lib/checksum.c:97
                    ip_fast_csum+0x1f/0x30 lib/checksum.c:108
                    nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:774 [inline]
                    nsim_dev_trap_report drivers/net/netdevsim/dev.c:808 [inline]
                    nsim_dev_trap_report_work+0x66f/0xc80 drivers/net/netdevsim/dev.c:853
                    process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
                    worker_thread+0x669/0x1090 kernel/workqueue.c:2436
                    kthread+0x2e8/0x3a0 kernel/kthread.c:376
                    ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
   INITIAL USE at:
                   lock_acquire kernel/locking/lockdep.c:5668 [inline]
                   lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                   __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
                   _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
                   spin_lock include/linux/spinlock.h:350 [inline]
                   evdev_pass_values.part.0+0xf6/0x960 drivers/input/evdev.c:261
                   evdev_pass_values drivers/input/evdev.c:253 [inline]
                   evdev_events+0x35d/0x3e0 drivers/input/evdev.c:306
                   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:128
                   input_pass_values.part.0+0x230/0x710 drivers/input/input.c:160
                   input_pass_values drivers/input/input.c:147 [inline]
                   input_event_dispose+0x5cf/0x730 drivers/input/input.c:375
                   input_handle_event+0x120/0xe70 drivers/input/input.c:403
                   input_inject_event+0x1c8/0x330 drivers/input/input.c:462
                   evdev_write+0x434/0x760 drivers/input/evdev.c:530
                   vfs_write+0x2db/0xdd0 fs/read_write.c:582
                   ksys_write+0x1ec/0x250 fs/read_write.c:637
                   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                   do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
                   entry_SYSCALL_64_after_hwframe+0x63/0xcd
 }
 ... key      at: [<ffffffff91f26c00>] __key.3+0x0/0x40

the dependencies between the lock to be acquired
 and SOFTIRQ-irq-unsafe lock:
  -> (tasklist_lock){.+.+}-{2:2} {
     HARDIRQ-ON-R at:
                        lock_acquire kernel/locking/lockdep.c:5668 [inline]
                        lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                        __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
                        _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228
                        do_wait+0x2b7/0xd70 kernel/exit.c:1595
                        kernel_wait+0xa0/0x150 kernel/exit.c:1785
                        call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
                        call_usermodehelper_exec_work+0xf9/0x180 kernel/umh.c:167
                        process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
                        worker_thread+0x669/0x1090 kernel/workqueue.c:2436
                        kthread+0x2e8/0x3a0 kernel/kthread.c:376
                        ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
     SOFTIRQ-ON-R at:
                        lock_acquire kernel/locking/lockdep.c:5668 [inline]
                        lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                        __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
                        _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228
                        do_wait+0x2b7/0xd70 kernel/exit.c:1595
                        kernel_wait+0xa0/0x150 kernel/exit.c:1785
                        call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
                        call_usermodehelper_exec_work+0xf9/0x180 kernel/umh.c:167
                        process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
                        worker_thread+0x669/0x1090 kernel/workqueue.c:2436
                        kthread+0x2e8/0x3a0 kernel/kthread.c:376
                        ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
     INITIAL USE at:
                       lock_acquire kernel/locking/lockdep.c:5668 [inline]
                       lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                       __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
                       _raw_write_lock_irq+0x36/0x50 kernel/locking/spinlock.c:326
                       copy_process+0x4efb/0x7520 kernel/fork.c:2400
                       kernel_clone+0xeb/0x990 kernel/fork.c:2681
                       user_mode_thread+0xb1/0xf0 kernel/fork.c:2757
                       rest_init+0x27/0x270 init/main.c:697
                       arch_call_rest_init+0x13/0x1c init/main.c:894
                       start_kernel+0x44f/0x470 init/main.c:1148
                       secondary_startup_64_no_verify+0xce/0xdb
     INITIAL READ USE at:
                            lock_acquire kernel/locking/lockdep.c:5668 [inline]
                            lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                            __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
                            _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228
                            do_wait+0x2b7/0xd70 kernel/exit.c:1595
                            kernel_wait+0xa0/0x150 kernel/exit.c:1785
                            call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
                            call_usermodehelper_exec_work+0xf9/0x180 kernel/umh.c:167
                            process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
                            worker_thread+0x669/0x1090 kernel/workqueue.c:2436
                            kthread+0x2e8/0x3a0 kernel/kthread.c:376
                            ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
   }
   ... key      at: [<ffffffff8c40a098>] tasklist_lock+0x18/0x40
   ... acquired at:
   __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
   _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228
   send_sigio+0xaf/0x370 fs/fcntl.c:792
   dnotify_handle_event+0x14c/0x280 fs/notify/dnotify/dnotify.c:115
   fsnotify_handle_inode_event.isra.0+0x22e/0x370 fs/notify/fsnotify.c:264
   fsnotify_handle_event fs/notify/fsnotify.c:316 [inline]
   send_to_group fs/notify/fsnotify.c:364 [inline]
   fsnotify+0x1178/0x16a0 fs/notify/fsnotify.c:570
   fsnotify_name include/linux/fsnotify.h:36 [inline]
   fsnotify_name include/linux/fsnotify.h:29 [inline]
   fsnotify_dirent include/linux/fsnotify.h:42 [inline]
   fsnotify_create include/linux/fsnotify.h:207 [inline]
   open_last_lookups fs/namei.c:3483 [inline]
   path_openat+0x1200/0x2a50 fs/namei.c:3711
   do_filp_open+0x1ba/0x410 fs/namei.c:3741
   do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
   do_sys_open fs/open.c:1326 [inline]
   __do_sys_creat fs/open.c:1402 [inline]
   __se_sys_creat fs/open.c:1396 [inline]
   __x64_sys_creat+0xcd/0x120 fs/open.c:1396
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

 -> (&f->f_owner.lock){...-}-{2:2} {
    IN-SOFTIRQ-R at:
                      lock_acquire kernel/locking/lockdep.c:5668 [inline]
                      lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                      __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
                      _raw_read_lock_irqsave+0x49/0x90 kernel/locking/spinlock.c:236
                      send_sigurg+0x22/0xae0 fs/fcntl.c:817
                      sk_send_sigurg+0x7a/0x320 net/core/sock.c:3355
                      tcp_check_urg net/ipv4/tcp_input.c:5626 [inline]
                      tcp_urg+0x38e/0xb40 net/ipv4/tcp_input.c:5667
                      tcp_rcv_established+0x897/0x2230 net/ipv4/tcp_input.c:6014
                      tcp_v4_do_rcv+0x670/0x9b0 net/ipv4/tcp_ipv4.c:1721
                      tcp_v4_rcv+0x2eab/0x3280 net/ipv4/tcp_ipv4.c:2142
                      ip_protocol_deliver_rcu+0x9f/0x460 net/ipv4/ip_input.c:205
                      ip_local_deliver_finish+0x2ec/0x4c0 net/ipv4/ip_input.c:233
                      NF_HOOK include/linux/netfilter.h:302 [inline]
                      NF_HOOK include/linux/netfilter.h:296 [inline]
                      ip_local_deliver+0x1ae/0x200 net/ipv4/ip_input.c:254
                      dst_input include/net/dst.h:454 [inline]
                      ip_rcv_finish+0x1cf/0x2f0 net/ipv4/ip_input.c:449
                      NF_HOOK include/linux/netfilter.h:302 [inline]
                      NF_HOOK include/linux/netfilter.h:296 [inline]
                      ip_rcv+0xae/0xd0 net/ipv4/ip_input.c:569
                      __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5482
                      __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5596
                      process_backlog+0x3e4/0x810 net/core/dev.c:5924
                      __napi_poll+0xb8/0x770 net/core/dev.c:6485
                      napi_poll net/core/dev.c:6552 [inline]
                      net_rx_action+0xa00/0xde0 net/core/dev.c:6663
                      __do_softirq+0x1fb/0xadc kernel/softirq.c:571
                      run_ksoftirqd kernel/softirq.c:934 [inline]
                      run_ksoftirqd+0x31/0x60 kernel/softirq.c:926
                      smpboot_thread_fn+0x659/0xa20 kernel/smpboot.c:164
                      kthread+0x2e8/0x3a0 kernel/kthread.c:376
                      ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
    INITIAL USE at:
                     lock_acquire kernel/locking/lockdep.c:5668 [inline]
                     lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                     __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
                     _raw_write_lock_irq+0x36/0x50 kernel/locking/spinlock.c:326
                     f_modown+0x2a/0x390 fs/fcntl.c:91
                     __tty_fasync drivers/tty/tty_io.c:2237 [inline]
                     tty_fasync+0x22e/0x310 drivers/tty/tty_io.c:2252
                     setfl fs/fcntl.c:73 [inline]
                     do_fcntl+0x62d/0x11a0 fs/fcntl.c:340
                     __do_sys_fcntl fs/fcntl.c:454 [inline]
                     __se_sys_fcntl fs/fcntl.c:439 [inline]
                     __x64_sys_fcntl+0x163/0x1d0 fs/fcntl.c:439
                     do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                     do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
                     entry_SYSCALL_64_after_hwframe+0x63/0xcd
    INITIAL READ USE at:
                          lock_acquire kernel/locking/lockdep.c:5668 [inline]
                          lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                          __raw_read_lock_irq include/linux/rwlock_api_smp.h:169 [inline]
                          _raw_read_lock_irq+0x67/0x80 kernel/locking/spinlock.c:244
                          f_getown_ex fs/fcntl.c:212 [inline]
                          do_fcntl+0x780/0x11a0 fs/fcntl.c:380
                          __do_sys_fcntl fs/fcntl.c:454 [inline]
                          __se_sys_fcntl fs/fcntl.c:439 [inline]
                          __x64_sys_fcntl+0x163/0x1d0 fs/fcntl.c:439
                          do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                          do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
                          entry_SYSCALL_64_after_hwframe+0x63/0xcd
  }
  ... key      at: [<ffffffff91c7ef40>] __key.5+0x0/0x40
  ... acquired at:
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
   _raw_read_lock_irqsave+0x74/0x90 kernel/locking/spinlock.c:236
   send_sigio+0x28/0x370 fs/fcntl.c:778
   kill_fasync_rcu fs/fcntl.c:1003 [inline]
   kill_fasync fs/fcntl.c:1017 [inline]
   kill_fasync+0x1fc/0x480 fs/fcntl.c:1010
   sock_wake_async+0xd6/0x160 net/socket.c:1419
   sk_wake_async include/net/sock.h:2528 [inline]
   sk_wake_async include/net/sock.h:2524 [inline]
   sock_def_error_report+0x34f/0x4e0 net/core/sock.c:3286
   sk_error_report+0x3d/0x3b0 net/core/sock.c:345
   mptcp_disconnect+0x5c/0x70 net/mptcp/protocol.c:3001
   __inet_stream_connect+0x20e/0xed0 net/ipv4/af_inet.c:634
   mptcp_stream_connect+0xb0/0x110 net/mptcp/protocol.c:3634
   __sys_connect_file+0x153/0x1a0 net/socket.c:1976
   io_connect+0x3cc/0x720 io_uring/net.c:1469
   io_issue_sqe+0x695/0x1220 io_uring/io_uring.c:1851
   io_queue_sqe io_uring/io_uring.c:2023 [inline]
   io_submit_sqe io_uring/io_uring.c:2284 [inline]
   io_submit_sqes+0x96c/0x1e60 io_uring/io_uring.c:2395
   __do_sys_io_uring_enter+0xc1d/0x2540 io_uring/io_uring.c:3343
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

-> (&new->fa_lock){....}-{2:2} {
   INITIAL USE at:
                   lock_acquire kernel/locking/lockdep.c:5668 [inline]
                   lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                   __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
                   _raw_write_lock_irq+0x36/0x50 kernel/locking/spinlock.c:326
                   fasync_remove_entry+0xba/0x1f0 fs/fcntl.c:873
                   fasync_helper+0xa2/0xb0 fs/fcntl.c:976
                   __tty_fasync drivers/tty/tty_io.c:2219 [inline]
                   __tty_hangup.part.0+0x2a8/0x7e0 drivers/tty/tty_io.c:621
                   __tty_hangup drivers/tty/tty_io.c:586 [inline]
                   tty_vhangup+0x21/0x30 drivers/tty/tty_io.c:701
                   pty_close+0x3a3/0x4f0 drivers/tty/pty.c:79
                   tty_release+0x3f9/0x11b0 drivers/tty/tty_io.c:1751
                   __fput+0x27c/0xa90 fs/file_table.c:320
                   task_work_run+0x16f/0x270 kernel/task_work.c:179
                   resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
                   exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
                   exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203
                   __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
                   syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
                   do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
                   entry_SYSCALL_64_after_hwframe+0x63/0xcd
   INITIAL READ USE at:
                        lock_acquire kernel/locking/lockdep.c:5668 [inline]
                        lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
                        __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
                        _raw_read_lock_irqsave+0x74/0x90 kernel/locking/spinlock.c:236
                        kill_fasync_rcu fs/fcntl.c:996 [inline]
                        kill_fasync fs/fcntl.c:1017 [inline]
                        kill_fasync+0x13a/0x480 fs/fcntl.c:1010
                        sock_wake_async+0xd6/0x160 net/socket.c:1419
                        sk_wake_async include/net/sock.h:2528 [inline]
                        sk_wake_async include/net/sock.h:2524 [inline]
                        sock_def_error_report+0x34f/0x4e0 net/core/sock.c:3286
                        sk_error_report+0x3d/0x3b0 net/core/sock.c:345
                        mptcp_disconnect+0x5c/0x70 net/mptcp/protocol.c:3001
                        __inet_stream_connect+0x20e/0xed0 net/ipv4/af_inet.c:634
                        mptcp_stream_connect+0xb0/0x110 net/mptcp/protocol.c:3634
                        __sys_connect_file+0x153/0x1a0 net/socket.c:1976
                        io_connect+0x3cc/0x720 io_uring/net.c:1469
                        io_issue_sqe+0x695/0x1220 io_uring/io_uring.c:1851
                        io_queue_sqe io_uring/io_uring.c:2023 [inline]
                        io_submit_sqe io_uring/io_uring.c:2284 [inline]
                        io_submit_sqes+0x96c/0x1e60 io_uring/io_uring.c:2395
                        __do_sys_io_uring_enter+0xc1d/0x2540 io_uring/io_uring.c:3343
                        do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                        do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
                        entry_SYSCALL_64_after_hwframe+0x63/0xcd
 }
 ... key      at: [<ffffffff91c7fd20>] __key.0+0x0/0x40
 ... acquired at:
   lock_acquire kernel/locking/lockdep.c:5668 [inline]
   lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
   __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
   _raw_read_lock_irqsave+0x74/0x90 kernel/locking/spinlock.c:236
   kill_fasync_rcu fs/fcntl.c:996 [inline]
   kill_fasync fs/fcntl.c:1017 [inline]
   kill_fasync+0x13a/0x480 fs/fcntl.c:1010
   __pass_event drivers/input/evdev.c:240 [inline]
   evdev_pass_values.part.0+0x667/0x960 drivers/input/evdev.c:278
   evdev_pass_values drivers/input/evdev.c:253 [inline]
   evdev_events+0x35d/0x3e0 drivers/input/evdev.c:306
   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:128
   input_pass_values.part.0+0x230/0x710 drivers/input/input.c:160
   input_pass_values drivers/input/input.c:147 [inline]
   input_event_dispose+0x5cf/0x730 drivers/input/input.c:375
   input_handle_event+0x120/0xe70 drivers/input/input.c:403
   input_inject_event+0x1c8/0x330 drivers/input/input.c:462
   evdev_write+0x434/0x760 drivers/input/evdev.c:530
   vfs_write+0x2db/0xdd0 fs/read_write.c:582
   ksys_write+0x1ec/0x250 fs/read_write.c:637
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x63/0xcd


stack backtrace:
CPU: 0 PID: 17854 Comm: syz-executor.3 Not tainted 6.2.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
 print_bad_irq_dependency kernel/locking/lockdep.c:2611 [inline]
 check_irq_usage.cold+0x4e4/0x761 kernel/locking/lockdep.c:2850
 check_prev_add kernel/locking/lockdep.c:3101 [inline]
 check_prevs_add kernel/locking/lockdep.c:3216 [inline]
 validate_chain kernel/locking/lockdep.c:3831 [inline]
 __lock_acquire+0x2a5b/0x56d0 kernel/locking/lockdep.c:5055
 lock_acquire kernel/locking/lockdep.c:5668 [inline]
 lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
 _raw_read_lock_irqsave+0x74/0x90 kernel/locking/spinlock.c:236
 kill_fasync_rcu fs/fcntl.c:996 [inline]
 kill_fasync fs/fcntl.c:1017 [inline]
 kill_fasync+0x13a/0x480 fs/fcntl.c:1010
 __pass_event drivers/input/evdev.c:240 [inline]
 evdev_pass_values.part.0+0x667/0x960 drivers/input/evdev.c:278
 evdev_pass_values drivers/input/evdev.c:253 [inline]
 evdev_events+0x35d/0x3e0 drivers/input/evdev.c:306
 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:128
 input_pass_values.part.0+0x230/0x710 drivers/input/input.c:160
 input_pass_values drivers/input/input.c:147 [inline]
 input_event_dispose+0x5cf/0x730 drivers/input/input.c:375
 input_handle_event+0x120/0xe70 drivers/input/input.c:403
 input_inject_event+0x1c8/0x330 drivers/input/input.c:462
 evdev_write+0x434/0x760 drivers/input/evdev.c:530
 vfs_write+0x2db/0xdd0 fs/read_write.c:582
 ksys_write+0x1ec/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f699108c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f698fbfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f69911abf80 RCX: 00007f699108c0c9
RDX: 0000000000000373 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007f69910e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f69912cfb1f R14: 00007f698fbfe300 R15: 0000000000022000
 </TASK>