=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
6.2.0-syzkaller-00081-g91bc559d8d3a #0 Not tainted
-----------------------------------------------------
syz-executor.5/13474 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffffffff8c40a098 (tasklist_lock){.+.+}-{2:2}, at: send_sigurg+0xb1/0xae0 fs/fcntl.c:834

and this task is already holding:
ffff88807d95dcb0 (&f->f_owner.lock){...-}-{2:2}, at: send_sigurg+0x22/0xae0 fs/fcntl.c:818
which would create a new lock dependency:
 (&f->f_owner.lock){...-}-{2:2} -> (tasklist_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:1653
  hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1533
  hid_input_array_field+0x4d7/0x660 drivers/hid/hid-core.c:1645
  hid_process_report drivers/hid/hid-core.c:1687 [inline]
  hid_report_raw_event+0xa89/0x1270 drivers/hid/hid-core.c:2004
  hid_input_report+0x363/0x4d0 drivers/hid/hid-core.c:2072
  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
  __stack_depot_save+0x11e/0x560 lib/stackdepot.c:452
  kasan_save_stack+0x35/0x40 mm/kasan/common.c:46
  kasan_set_track+0x25/0x30 mm/kasan/common.c:52
  __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:328
  kasan_slab_alloc include/linux/kasan.h:201 [inline]
  slab_post_alloc_hook mm/slab.h:761 [inline]
  slab_alloc_node mm/slub.c:3452 [inline]
  slab_alloc mm/slub.c:3460 [inline]
  __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
  kmem_cache_alloc+0x1e4/0x430 mm/slub.c:3476
  vm_area_dup+0x7d/0x380 kernel/fork.c:466
  __split_vma+0xae/0x5e0 mm/mmap.c:2211
  do_mas_align_munmap+0x7e0/0x1260 mm/mmap.c:2362
  do_mas_munmap+0x26e/0x2c0 mm/mmap.c:2502
  mmap_region+0x21d/0x1dd0 mm/mmap.c:2550
  do_mmap+0x831/0xf60 mm/mmap.c:1411
  vm_mmap_pgoff+0x1af/0x280 mm/util.c:520
  ksys_mmap_pgoff+0x41f/0x5a0 mm/mmap.c:1457
  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

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 --> &f->f_owner.lock --> tasklist_lock

 Possible interrupt unsafe locking scenario:

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

 *** DEADLOCK ***

2 locks held by syz-executor.5/13474:
 #0: ffff888022d499b0 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline]
 #0: ffff888022d499b0 (sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_sendmsg+0x21/0x50 net/ipv4/tcp.c:1483
 #1: ffff88807d95dcb0 (&f->f_owner.lock){...-}-{2:2}, at: send_sigurg+0x22/0xae0 fs/fcntl.c:818

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:1653
                        hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1533
                        hid_input_array_field+0x4d7/0x660 drivers/hid/hid-core.c:1645
                        hid_process_report drivers/hid/hid-core.c:1687 [inline]
                        hid_report_raw_event+0xa89/0x1270 drivers/hid/hid-core.c:2004
                        hid_input_report+0x363/0x4d0 drivers/hid/hid-core.c:2072
                        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
                        __stack_depot_save+0x11e/0x560 lib/stackdepot.c:452
                        kasan_save_stack+0x35/0x40 mm/kasan/common.c:46
                        kasan_set_track+0x25/0x30 mm/kasan/common.c:52
                        __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:328
                        kasan_slab_alloc include/linux/kasan.h:201 [inline]
                        slab_post_alloc_hook mm/slab.h:761 [inline]
                        slab_alloc_node mm/slub.c:3452 [inline]
                        slab_alloc mm/slub.c:3460 [inline]
                        __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
                        kmem_cache_alloc+0x1e4/0x430 mm/slub.c:3476
                        vm_area_dup+0x7d/0x380 kernel/fork.c:466
                        __split_vma+0xae/0x5e0 mm/mmap.c:2211
                        do_mas_align_munmap+0x7e0/0x1260 mm/mmap.c:2362
                        do_mas_munmap+0x26e/0x2c0 mm/mmap.c:2502
                        mmap_region+0x21d/0x1dd0 mm/mmap.c:2550
                        do_mmap+0x831/0xf60 mm/mmap.c:1411
                        vm_mmap_pgoff+0x1af/0x280 mm/util.c:520
                        ksys_mmap_pgoff+0x41f/0x5a0 mm/mmap.c:1457
                        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 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_handle_get_val+0x70/0x5e0 drivers/input/evdev.c:900
                       evdev_do_ioctl+0xe98/0x1a70 drivers/input/evdev.c:1159
                       evdev_ioctl_handler drivers/input/evdev.c:1272 [inline]
                       evdev_ioctl+0x149/0x1b0 drivers/input/evdev.c:1281
                       vfs_ioctl fs/ioctl.c:51 [inline]
                       __do_sys_ioctl fs/ioctl.c:870 [inline]
                       __se_sys_ioctl fs/ioctl.c:856 [inline]
                       __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856
                       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: [<ffffffff91f59c80>] __key.3+0x0/0x40
 -> (&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:874
                     fasync_helper+0xa2/0xb0 fs/fcntl.c:977
                     sock_fasync+0x98/0x140 net/socket.c:1393
                     __fput+0x8c2/0xa90 fs/file_table.c:318
                     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:997 [inline]
                          kill_fasync fs/fcntl.c:1018 [inline]
                          kill_fasync+0x13a/0x480 fs/fcntl.c:1011
                          lease_break_callback+0x23/0x30 fs/locks.c:522
                          __break_lease+0x3e2/0x1590 fs/locks.c:1522
                          break_lease include/linux/filelock.h:360 [inline]
                          break_lease include/linux/filelock.h:350 [inline]
                          do_dentry_open+0x65e/0x13f0 fs/open.c:875
                          do_open fs/namei.c:3560 [inline]
                          path_openat+0x1ba5/0x2740 fs/namei.c:3715
                          do_filp_open+0x1ba/0x410 fs/namei.c:3742
                          do_sys_openat2+0x16d/0x4c0 fs/open.c:1312
                          do_sys_open fs/open.c:1328 [inline]
                          __do_sys_open fs/open.c:1336 [inline]
                          __se_sys_open fs/open.c:1332 [inline]
                          __x64_sys_open+0x11d/0x1c0 fs/open.c:1332
                          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: [<ffffffff91cb2da0>] __key.0+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
   kill_fasync_rcu fs/fcntl.c:997 [inline]
   kill_fasync fs/fcntl.c:1018 [inline]
   kill_fasync+0x13a/0x480 fs/fcntl.c:1011
   __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

-> (&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:818
                    sk_send_sigurg+0x7a/0x320 net/core/sock.c:3357
                    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:5474
                    __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5588
                    process_backlog+0x3e4/0x810 net/core/dev.c:5916
                    __napi_poll+0xb8/0x770 net/core/dev.c:6477
                    napi_poll net/core/dev.c:6544 [inline]
                    net_rx_action+0xa00/0xde0 net/core/dev.c:6655
                    __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:92
                   generic_add_lease fs/locks.c:1807 [inline]
                   generic_setlease+0x127b/0x18e0 fs/locks.c:1886
                   vfs_setlease+0x101/0x130 fs/locks.c:1976
                   do_fcntl_add_lease fs/locks.c:1997 [inline]
                   fcntl_setlease+0x138/0x2c0 fs/locks.c:2019
                   do_fcntl+0xd30/0x11c0 fs/fcntl.c:404
                   __do_sys_fcntl fs/fcntl.c:455 [inline]
                   __se_sys_fcntl fs/fcntl.c:440 [inline]
                   __x64_sys_fcntl+0x163/0x1d0 fs/fcntl.c:440
                   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_irqsave include/linux/rwlock_api_smp.h:160 [inline]
                        _raw_read_lock_irqsave+0x74/0x90 kernel/locking/spinlock.c:236
                        send_sigurg+0x22/0xae0 fs/fcntl.c:818
                        sk_send_sigurg+0x7a/0x320 net/core/sock.c:3357
                        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
                        sk_backlog_rcv include/net/sock.h:1113 [inline]
                        __release_sock+0x133/0x3b0 net/core/sock.c:2930
                        release_sock+0x58/0x1b0 net/core/sock.c:3486
                        sk_stream_wait_memory+0x72f/0xf30 net/core/stream.c:145
                        tcp_sendmsg_locked+0x944/0x2950 net/ipv4/tcp.c:1446
                        tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1484
                        inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:828
                        sock_sendmsg_nosec net/socket.c:714 [inline]
                        sock_sendmsg+0xd3/0x120 net/socket.c:734
                        __sys_sendto+0x23a/0x340 net/socket.c:2120
                        __do_sys_sendto net/socket.c:2132 [inline]
                        __se_sys_sendto net/socket.c:2128 [inline]
                        __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2128
                        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: [<ffffffff91cb1fc0>] __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:779
   kill_fasync_rcu fs/fcntl.c:1004 [inline]
   kill_fasync fs/fcntl.c:1018 [inline]
   kill_fasync+0x1fc/0x480 fs/fcntl.c:1011
   lease_break_callback+0x23/0x30 fs/locks.c:522
   __break_lease+0x3e2/0x1590 fs/locks.c:1522
   break_lease include/linux/filelock.h:360 [inline]
   break_lease include/linux/filelock.h:350 [inline]
   do_dentry_open+0x65e/0x13f0 fs/open.c:875
   do_open fs/namei.c:3560 [inline]
   path_openat+0x1ba5/0x2740 fs/namei.c:3715
   do_filp_open+0x1ba/0x410 fs/namei.c:3742
   do_sys_openat2+0x16d/0x4c0 fs/open.c:1312
   do_sys_open fs/open.c:1328 [inline]
   __do_sys_open fs/open.c:1336 [inline]
   __se_sys_open fs/open.c:1332 [inline]
   __x64_sys_open+0x11d/0x1c0 fs/open.c:1332
   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


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+0x4f0f/0x7530 kernel/fork.c:2400
                   kernel_clone+0xeb/0x9f0 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:
   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
   send_sigurg+0xb1/0xae0 fs/fcntl.c:834
   sk_send_sigurg+0x7a/0x320 net/core/sock.c:3357
   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
   sk_backlog_rcv include/net/sock.h:1113 [inline]
   __release_sock+0x133/0x3b0 net/core/sock.c:2930
   release_sock+0x58/0x1b0 net/core/sock.c:3486
   tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1485
   inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:828
   sock_sendmsg_nosec net/socket.c:714 [inline]
   sock_sendmsg+0xd3/0x120 net/socket.c:734
   __sys_sendto+0x23a/0x340 net/socket.c:2120
   __do_sys_sendto net/socket.c:2132 [inline]
   __se_sys_sendto net/socket.c:2128 [inline]
   __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2128
   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: 13474 Comm: syz-executor.5 Not tainted 6.2.0-syzkaller-00081-g91bc559d8d3a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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 include/linux/rwlock_api_smp.h:150 [inline]
 _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228
 send_sigurg+0xb1/0xae0 fs/fcntl.c:834
 sk_send_sigurg+0x7a/0x320 net/core/sock.c:3357
 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
 sk_backlog_rcv include/net/sock.h:1113 [inline]
 __release_sock+0x133/0x3b0 net/core/sock.c:2930
 release_sock+0x58/0x1b0 net/core/sock.c:3486
 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1485
 inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:828
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 __sys_sendto+0x23a/0x340 net/socket.c:2120
 __do_sys_sendto net/socket.c:2132 [inline]
 __se_sys_sendto net/socket.c:2128 [inline]
 __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2128
 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: 0033:0x7f920bc8c0f9
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:00007f920c99d168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f920bdac050 RCX: 00007f920bc8c0f9
RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007f920bce7ae9 R08: 0000000000000000 R09: 0000000000001500
R10: 000000000000f485 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f920becfb1f R14: 00007f920c99d300 R15: 0000000000022000
 </TASK>