===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 6.2.0-rc3-syzkaller-00165-gd9fc1511728c #0 Not tainted ----------------------------------------------------- syz-executor.3/10540 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffff88802372d168 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:996 [inline] ffff88802372d168 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1017 [inline] ffff88802372d168 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x13a/0x480 fs/fcntl.c:1010 and this task is already holding: ffff88807768d028 (&client->buffer_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline] ffff88807768d028 (&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_inject_event+0x1c8/0x330 drivers/input/input.c:462 kd_sound_helper+0x1d6/0x270 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0xd8/0x220 drivers/input/input.c:2524 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 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 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); lock(&client->buffer_lock); *** DEADLOCK *** 7 locks held by syz-executor.3/10540: #0: ffff8881476d4110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d7/0x760 drivers/input/evdev.c:513 #1: ffff888018d83230 (&dev->event_lock#2){-.-.}-{2:2}, at: input_inject_event+0x9f/0x330 drivers/input/input.c:457 #2: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:66 [inline] #2: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:63 [inline] #2: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x8b/0x330 drivers/input/input.c:456 #3: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:2523 #4: ffffffff8c791a80 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x5d/0x3e0 drivers/input/evdev.c:296 #5: ffff88807768d028 (&client->buffer_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline] #5: ffff88807768d028 (&client->buffer_lock){..-.}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x960 drivers/input/evdev.c:261 #6: ffffffff8c791a80 (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_inject_event+0x1c8/0x330 drivers/input/input.c:462 kd_sound_helper+0x1d6/0x270 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0xd8/0x220 drivers/input/input.c:2524 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 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_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_inject_event+0x1c8/0x330 drivers/input/input.c:462 kd_sound_helper+0x1d6/0x270 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0xd8/0x220 drivers/input/input.c:2524 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 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 } ... key at: [] __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: [] 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 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_readable+0x34d/0x4e0 net/core/sock.c:3299 unix_dgram_sendmsg+0xf8c/0x1bc0 net/unix/af_unix.c:2083 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmmsg+0x18f/0x460 net/socket.c:2616 __do_sys_sendmmsg net/socket.c:2645 [inline] __se_sys_sendmmsg net/socket.c:2642 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2642 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} { 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 __f_setown fs/fcntl.c:110 [inline] f_setown+0xdb/0x230 fs/fcntl.c:138 sock_ioctl+0x450/0x680 net/socket.c:1229 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 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_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_readable+0x34d/0x4e0 net/core/sock.c:3299 unix_dgram_sendmsg+0xf8c/0x1bc0 net/unix/af_unix.c:2083 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmmsg+0x18f/0x460 net/socket.c:2616 __do_sys_sendmmsg net/socket.c:2645 [inline] __se_sys_sendmmsg net/socket.c:2642 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2642 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: [] __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_readable+0x34d/0x4e0 net/core/sock.c:3299 unix_dgram_sendmsg+0xf8c/0x1bc0 net/unix/af_unix.c:2083 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmmsg+0x18f/0x460 net/socket.c:2616 __do_sys_sendmmsg net/socket.c:2645 [inline] __se_sys_sendmmsg net/socket.c:2642 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2642 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 sock_fasync+0x98/0x140 net/socket.c:1390 __fput+0x8c2/0xa90 fs/file_table.c:317 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_readable+0x34d/0x4e0 net/core/sock.c:3299 unix_dgram_sendmsg+0xf8c/0x1bc0 net/unix/af_unix.c:2083 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmmsg+0x18f/0x460 net/socket.c:2616 __do_sys_sendmmsg net/socket.c:2645 [inline] __se_sys_sendmmsg net/socket.c:2642 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2642 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: [] __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: 10540 Comm: syz-executor.3 Not tainted 6.2.0-rc3-syzkaller-00165-gd9fc1511728c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __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: 0033:0x7fb8b268c0c9 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:00007fb8b345b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb8b27abf80 RCX: 00007fb8b268c0c9 RDX: 0000000000000373 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007fb8b26e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff78af73af R14: 00007fb8b345b300 R15: 0000000000022000