=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
5.12.0-rc7-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor.4/23920 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff88801179fa38 (&f->f_owner.lock){.+.?}-{2:2}, at: send_sigio+0x24/0x370 fs/fcntl.c:795

and this task is already holding:
ffff8880129520c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1012 [inline]
ffff8880129520c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1033 [inline]
ffff8880129520c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x14b/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 SOFTIRQ-irq-safe lock:
 (fasync_lock){+.+.}-{2:2}

... which became SOFTIRQ-irq-safe at:
  lock_acquire kernel/locking/lockdep.c:5511 [inline]
  lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
  __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]
  fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:885
  fasync_helper+0x9e/0xb0 fs/fcntl.c:993
  __tty_fasync drivers/tty/tty_io.c:2246 [inline]
  tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1764
  __fput+0x288/0x920 fs/file_table.c:280
  task_work_run+0xdd/0x1a0 kernel/task_work.c:140
  tracehook_notify_resume include/linux/tracehook.h:189 [inline]
  exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
  exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
  __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
  syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
  entry_SYSCALL_64_after_hwframe+0x44/0xae

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

... which became SOFTIRQ-irq-unsafe at:
...
  lock_acquire kernel/locking/lockdep.c:5511 [inline]
  lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
  __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
  _raw_read_lock_irqsave+0x45/0x90 kernel/locking/spinlock.c:231
  send_sigurg+0x1e/0xac0 fs/fcntl.c:834
  sk_send_sigurg+0x76/0x300 net/core/sock.c:2946
  tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5503
  tcp_urg net/ipv4/tcp_input.c:5544 [inline]
  tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5878
  tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1679
  tcp_v4_rcv+0x3298/0x3950 net/ipv4/tcp_ipv4.c:2062
  ip_protocol_deliver_rcu+0x5c/0xa20 net/ipv4/ip_input.c:204
  ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231
  NF_HOOK include/linux/netfilter.h:301 [inline]
  NF_HOOK include/linux/netfilter.h:295 [inline]
  ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252
  dst_input include/net/dst.h:458 [inline]
  ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:429
  NF_HOOK include/linux/netfilter.h:301 [inline]
  NF_HOOK include/linux/netfilter.h:295 [inline]
  ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:540
  __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5384
  __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5498
  process_backlog+0x232/0x6c0 net/core/dev.c:6365
  __napi_poll+0xaf/0x440 net/core/dev.c:6912
  napi_poll net/core/dev.c:6979 [inline]
  net_rx_action+0x801/0xb40 net/core/dev.c:7066
  __do_softirq+0x29b/0x9f6 kernel/softirq.c:345
  run_ksoftirqd kernel/softirq.c:652 [inline]
  run_ksoftirqd+0x2d/0x60 kernel/softirq.c:644
  smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
  kthread+0x3b1/0x4a0 kernel/kthread.c:292
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

other info that might help us debug this:

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

 Possible interrupt unsafe locking scenario:

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

 *** DEADLOCK ***

8 locks held by syz-executor.4/23920:
 #0: ffff88801d082110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 drivers/input/evdev.c:513
 #1: ffff88801ce64230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xa6/0x310 drivers/input/input.c:471
 #2: ffffffff8bf74360 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:53 [inline]
 #2: ffffffff8bf74360 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:50 [inline]
 #2: ffffffff8bf74360 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x310 drivers/input/input.c:470
 #3: ffffffff8bf74360 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x700 drivers/input/input.c:837
 #4: ffffffff8bf74360 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3f0 drivers/input/evdev.c:296
 #5: ffff88802baeb028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
 #5: ffff88802baeb028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261
 #6: ffffffff8bf74360 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 fs/fcntl.c:1031
 #7: ffff8880129520c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1012 [inline]
 #7: ffff8880129520c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1033 [inline]
 #7: ffff8880129520c0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x14b/0x460 fs/fcntl.c:1026

the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
 -> (fasync_lock){+.+.}-{2:2} {
    HARDIRQ-ON-W at:
                      lock_acquire kernel/locking/lockdep.c:5511 [inline]
                      lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                      __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]
                      fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:885
                      fasync_helper+0x9e/0xb0 fs/fcntl.c:993
                      __tty_fasync drivers/tty/tty_io.c:2246 [inline]
                      tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1764
                      __fput+0x288/0x920 fs/file_table.c:280
                      task_work_run+0xdd/0x1a0 kernel/task_work.c:140
                      tracehook_notify_resume include/linux/tracehook.h:189 [inline]
                      exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
                      exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
                      __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
                      syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
                      entry_SYSCALL_64_after_hwframe+0x44/0xae
    SOFTIRQ-ON-W at:
                      lock_acquire kernel/locking/lockdep.c:5511 [inline]
                      lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                      __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]
                      fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:885
                      fasync_helper+0x9e/0xb0 fs/fcntl.c:993
                      __tty_fasync drivers/tty/tty_io.c:2246 [inline]
                      tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1764
                      __fput+0x288/0x920 fs/file_table.c:280
                      task_work_run+0xdd/0x1a0 kernel/task_work.c:140
                      tracehook_notify_resume include/linux/tracehook.h:189 [inline]
                      exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
                      exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
                      __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
                      syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
                      entry_SYSCALL_64_after_hwframe+0x44/0xae
    INITIAL USE at:
                     lock_acquire kernel/locking/lockdep.c:5511 [inline]
                     lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                     __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]
                     fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:885
                     fasync_helper+0x9e/0xb0 fs/fcntl.c:993
                     __tty_fasync drivers/tty/tty_io.c:2246 [inline]
                     tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1764
                     __fput+0x288/0x920 fs/file_table.c:280
                     task_work_run+0xdd/0x1a0 kernel/task_work.c:140
                     tracehook_notify_resume include/linux/tracehook.h:189 [inline]
                     exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
                     exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
                     __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
                     syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
                     entry_SYSCALL_64_after_hwframe+0x44/0xae
  }
  ... key      at: [<ffffffff8c0d7f18>] fasync_lock+0x18/0x8e0
  ... acquired at:
   __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
   _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311
   fasync_remove_entry+0xb6/0x1f0 fs/fcntl.c:890
   fasync_helper+0x9e/0xb0 fs/fcntl.c:993
   pipe_fasync+0x128/0x230 fs/pipe.c:730
   __fput+0x712/0x920 fs/file_table.c:277
   task_work_run+0xdd/0x1a0 kernel/task_work.c:140
   tracehook_notify_resume include/linux/tracehook.h:189 [inline]
   exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
   exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
   __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
   syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
   entry_SYSCALL_64_after_hwframe+0x44/0xae

-> (&new->fa_lock){....}-{2:2} {
   INITIAL USE at:
                   lock_acquire kernel/locking/lockdep.c:5511 [inline]
                   lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                   __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
                   _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311
                   fasync_remove_entry+0xb6/0x1f0 fs/fcntl.c:890
                   fasync_helper+0x9e/0xb0 fs/fcntl.c:993
                   pipe_fasync+0x128/0x230 fs/pipe.c:730
                   __fput+0x712/0x920 fs/file_table.c:277
                   task_work_run+0xdd/0x1a0 kernel/task_work.c:140
                   tracehook_notify_resume include/linux/tracehook.h:189 [inline]
                   exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
                   exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208
                   __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
                   syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
                   entry_SYSCALL_64_after_hwframe+0x44/0xae
   INITIAL READ USE at:
                        lock_acquire kernel/locking/lockdep.c:5511 [inline]
                        lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                        __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+0x14b/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+0x28b/0x3f0 drivers/input/evdev.c:306
                        input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
                        input_pass_values.part.0+0x284/0x700 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+0x2f5/0x310 drivers/input/input.c:476
                        evdev_write+0x430/0x760 drivers/input/evdev.c:530
                        vfs_write+0x28e/0xa30 fs/read_write.c:603
                        ksys_write+0x1ee/0x250 fs/read_write.c:658
                        do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
                        entry_SYSCALL_64_after_hwframe+0x44/0xae
 }
 ... key      at: [<ffffffff8fe97140>] __key.0+0x0/0x40
 ... acquired at:
   lock_acquire kernel/locking/lockdep.c:5511 [inline]
   lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
   __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+0x24/0x370 fs/fcntl.c:795
   kill_fasync_rcu fs/fcntl.c:1019 [inline]
   kill_fasync fs/fcntl.c:1033 [inline]
   kill_fasync+0x205/0x460 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+0x28b/0x3f0 drivers/input/evdev.c:306
   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
   input_pass_values.part.0+0x284/0x700 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+0x2f5/0x310 drivers/input/input.c:476
   evdev_write+0x430/0x760 drivers/input/evdev.c:530
   vfs_write+0x28e/0xa30 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
   entry_SYSCALL_64_after_hwframe+0x44/0xae


the dependencies between the lock to be acquired
 and SOFTIRQ-irq-unsafe lock:
-> (&f->f_owner.lock){.+.?}-{2:2} {
   HARDIRQ-ON-R at:
                    lock_acquire kernel/locking/lockdep.c:5511 [inline]
                    lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                    __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+0x8b4/0x1200 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_64+0x2d/0x70 arch/x86/entry/common.c:46
                    entry_SYSCALL_64_after_hwframe+0x44/0xae
   IN-SOFTIRQ-R at:
                    lock_acquire kernel/locking/lockdep.c:5511 [inline]
                    lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                    __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
                    _raw_read_lock_irqsave+0x45/0x90 kernel/locking/spinlock.c:231
                    send_sigurg+0x1e/0xac0 fs/fcntl.c:834
                    sk_send_sigurg+0x76/0x300 net/core/sock.c:2946
                    tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5503
                    tcp_urg net/ipv4/tcp_input.c:5544 [inline]
                    tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5878
                    tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1679
                    tcp_v4_rcv+0x3298/0x3950 net/ipv4/tcp_ipv4.c:2062
                    ip_protocol_deliver_rcu+0x5c/0xa20 net/ipv4/ip_input.c:204
                    ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231
                    NF_HOOK include/linux/netfilter.h:301 [inline]
                    NF_HOOK include/linux/netfilter.h:295 [inline]
                    ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252
                    dst_input include/net/dst.h:458 [inline]
                    ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:429
                    NF_HOOK include/linux/netfilter.h:301 [inline]
                    NF_HOOK include/linux/netfilter.h:295 [inline]
                    ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:540
                    __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5384
                    __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5498
                    process_backlog+0x232/0x6c0 net/core/dev.c:6365
                    __napi_poll+0xaf/0x440 net/core/dev.c:6912
                    napi_poll net/core/dev.c:6979 [inline]
                    net_rx_action+0x801/0xb40 net/core/dev.c:7066
                    __do_softirq+0x29b/0x9f6 kernel/softirq.c:345
                    run_ksoftirqd kernel/softirq.c:652 [inline]
                    run_ksoftirqd+0x2d/0x60 kernel/softirq.c:644
                    smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
                    kthread+0x3b1/0x4a0 kernel/kthread.c:292
                    ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
   SOFTIRQ-ON-R at:
                    lock_acquire kernel/locking/lockdep.c:5511 [inline]
                    lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                    __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+0x8b4/0x1200 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_64+0x2d/0x70 arch/x86/entry/common.c:46
                    entry_SYSCALL_64_after_hwframe+0x44/0xae
   INITIAL USE at:
                   lock_acquire kernel/locking/lockdep.c:5511 [inline]
                   lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                   __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
                   _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311
                   f_modown+0x2a/0x390 fs/fcntl.c:91
                   __f_setown fs/fcntl.c:110 [inline]
                   f_setown+0xf4/0x230 fs/fcntl.c:138
                   do_fcntl+0x749/0x1200 fs/fcntl.c:392
                   __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_64+0x2d/0x70 arch/x86/entry/common.c:46
                   entry_SYSCALL_64_after_hwframe+0x44/0xae
   INITIAL READ USE at:
                        lock_acquire kernel/locking/lockdep.c:5511 [inline]
                        lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
                        __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
                        _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
                        send_sigurg+0x1e/0xac0 fs/fcntl.c:834
                        sk_send_sigurg+0x76/0x300 net/core/sock.c:2946
                        tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5503
                        tcp_urg net/ipv4/tcp_input.c:5544 [inline]
                        tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5878
                        tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1679
                        sk_backlog_rcv include/net/sock.h:1020 [inline]
                        __release_sock+0x134/0x3b0 net/core/sock.c:2550
                        release_sock+0x54/0x1b0 net/core/sock.c:3074
                        sk_stream_wait_memory+0x608/0xed0 net/core/stream.c:145
                        tcp_sendmsg_locked+0x1072/0x2e40 net/ipv4/tcp.c:1417
                        tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457
                        inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821
                        sock_sendmsg_nosec net/socket.c:654 [inline]
                        sock_sendmsg+0xcf/0x120 net/socket.c:674
                        __sys_sendto+0x21c/0x320 net/socket.c:1977
                        __do_sys_sendto net/socket.c:1989 [inline]
                        __se_sys_sendto net/socket.c:1985 [inline]
                        __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1985
                        do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
                        entry_SYSCALL_64_after_hwframe+0x44/0xae
 }
 ... key      at: [<ffffffff8fe96360>] __key.5+0x0/0x40
 ... acquired at:
   lock_acquire kernel/locking/lockdep.c:5511 [inline]
   lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
   __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+0x24/0x370 fs/fcntl.c:795
   kill_fasync_rcu fs/fcntl.c:1019 [inline]
   kill_fasync fs/fcntl.c:1033 [inline]
   kill_fasync+0x205/0x460 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+0x28b/0x3f0 drivers/input/evdev.c:306
   input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
   input_pass_values.part.0+0x284/0x700 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+0x2f5/0x310 drivers/input/input.c:476
   evdev_write+0x430/0x760 drivers/input/evdev.c:530
   vfs_write+0x28e/0xa30 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
   entry_SYSCALL_64_after_hwframe+0x44/0xae


stack backtrace:
CPU: 0 PID: 23920 Comm: syz-executor.4 Not tainted 5.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 print_bad_irq_dependency kernel/locking/lockdep.c:2461 [inline]
 check_irq_usage.cold+0x50d/0x744 kernel/locking/lockdep.c:2690
 check_prev_add kernel/locking/lockdep.c:2941 [inline]
 check_prevs_add kernel/locking/lockdep.c:3060 [inline]
 validate_chain kernel/locking/lockdep.c:3675 [inline]
 __lock_acquire+0x2b2c/0x54c0 kernel/locking/lockdep.c:4901
 lock_acquire kernel/locking/lockdep.c:5511 [inline]
 lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
 __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+0x24/0x370 fs/fcntl.c:795
 kill_fasync_rcu fs/fcntl.c:1019 [inline]
 kill_fasync fs/fcntl.c:1033 [inline]
 kill_fasync+0x205/0x460 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+0x28b/0x3f0 drivers/input/evdev.c:306
 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
 input_pass_values.part.0+0x284/0x700 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+0x2f5/0x310 drivers/input/input.c:476
 evdev_write+0x430/0x760 drivers/input/evdev.c:530
 vfs_write+0x28e/0xa30 fs/read_write.c:603
 ksys_write+0x1ee/0x250 fs/read_write.c:658
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x466459
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe34b5ce188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 00000000000002b8 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 0000000000a9fb1f R14: 00007fe34b5ce300 R15: 0000000000022000