======================================================== WARNING: possible irq lock inversion dependency detected 6.13.0-rc6-syzkaller-00182-gf8c6263347e1 #0 Not tainted -------------------------------------------------------- syz.7.1155/10728 just changed the state of lock: ffff888145b8a230 (&dev->event_lock#2){..-.}-{3:3}, at: input_inject_event+0xa4/0x370 drivers/input/input.c:423 but this lock took another, SOFTIRQ-READ-unsafe lock in the past: (tasklist_lock){.+.+}-{3:3} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &dev->event_lock#2 --> &new->fa_lock --> tasklist_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(tasklist_lock); local_irq_disable(); lock(&dev->event_lock#2); lock(&new->fa_lock); lock(&dev->event_lock#2); *** DEADLOCK *** 2 locks held by syz.7.1155/10728: #0: ffff888145b8e118 (&evdev->mutex){+.+.}-{4:4}, at: evdev_write+0x207/0x750 drivers/input/evdev.c:511 #1: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #1: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #1: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: led_trigger_event drivers/leds/led-triggers.c:405 [inline] #1: ffffffff8e1bb900 (rcu_read_lock){....}-{1:3}, at: led_trigger_event+0x6c/0x270 drivers/leds/led-triggers.c:395 the shortest dependencies between 2nd lock and 1st lock: -> (tasklist_lock){.+.+}-{3:3} { HARDIRQ-ON-R at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228 __do_wait+0x105/0x890 kernel/exit.c:1647 do_wait+0x217/0x570 kernel/exit.c:1691 kernel_wait+0xa0/0x160 kernel/exit.c:1867 call_usermodehelper_exec_sync kernel/umh.c:136 [inline] call_usermodehelper_exec_work+0xf1/0x170 kernel/umh.c:163 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c4/0x3a0 kernel/kthread.c:389 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 SOFTIRQ-ON-R at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228 __do_wait+0x105/0x890 kernel/exit.c:1647 do_wait+0x217/0x570 kernel/exit.c:1691 kernel_wait+0xa0/0x160 kernel/exit.c:1867 call_usermodehelper_exec_sync kernel/umh.c:136 [inline] call_usermodehelper_exec_work+0xf1/0x170 kernel/umh.c:163 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c4/0x3a0 kernel/kthread.c:389 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INITIAL USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __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+0x3fe0/0x8e50 kernel/fork.c:2522 kernel_clone+0xfd/0x960 kernel/fork.c:2806 user_mode_thread+0xb4/0xf0 kernel/fork.c:2884 rest_init+0x23/0x2b0 init/main.c:712 start_kernel+0x3e4/0x4d0 init/main.c:1102 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x148 INITIAL READ USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x5f/0x70 kernel/locking/spinlock.c:228 __do_wait+0x105/0x890 kernel/exit.c:1647 do_wait+0x217/0x570 kernel/exit.c:1691 kernel_wait+0xa0/0x160 kernel/exit.c:1867 call_usermodehelper_exec_sync kernel/umh.c:136 [inline] call_usermodehelper_exec_work+0xf1/0x170 kernel/umh.c:163 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c4/0x3a0 kernel/kthread.c:389 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 } ... 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_sigurg+0xf3/0xc80 fs/fcntl.c:967 sk_send_sigurg+0x76/0x360 net/core/sock.c:3514 tcp_check_urg net/ipv4/tcp_input.c:5865 [inline] tcp_urg+0x343/0xb80 net/ipv4/tcp_input.c:5906 tcp_rcv_established+0x7d4/0x20d0 net/ipv4/tcp_input.c:6261 tcp_v6_do_rcv+0x897/0x1740 net/ipv6/tcp_ipv6.c:1644 sk_backlog_rcv include/net/sock.h:1121 [inline] __release_sock+0x14c/0x400 net/core/sock.c:3086 release_sock+0x5a/0x220 net/core/sock.c:3640 tcp_sendmsg+0x38/0x50 net/ipv4/tcp.c:1359 inet6_sendmsg+0xb9/0x140 net/ipv6/af_inet6.c:659 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x374/0x4f0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> (&f_owner->lock){....}-{3:3} { INITIAL USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0x36/0x50 kernel/locking/spinlock.c:326 __f_setown+0x67/0x3c0 fs/fcntl.c:136 f_setown+0x122/0x290 fs/fcntl.c:183 do_fcntl+0xf8e/0x15b0 fs/fcntl.c:515 __do_sys_fcntl fs/fcntl.c:591 [inline] __se_sys_fcntl fs/fcntl.c:576 [inline] __x64_sys_fcntl+0x170/0x200 fs/fcntl.c:576 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f INITIAL READ USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __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+0x65/0xc80 fs/fcntl.c:951 sk_send_sigurg+0x76/0x360 net/core/sock.c:3514 tcp_check_urg net/ipv4/tcp_input.c:5865 [inline] tcp_urg+0x343/0xb80 net/ipv4/tcp_input.c:5906 tcp_rcv_established+0x7d4/0x20d0 net/ipv4/tcp_input.c:6261 tcp_v6_do_rcv+0x897/0x1740 net/ipv6/tcp_ipv6.c:1644 sk_backlog_rcv include/net/sock.h:1121 [inline] __release_sock+0x14c/0x400 net/core/sock.c:3086 release_sock+0x5a/0x220 net/core/sock.c:3640 tcp_sendmsg+0x38/0x50 net/ipv4/tcp.c:1359 inet6_sendmsg+0xb9/0x140 net/ipv6/af_inet6.c:659 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x374/0x4f0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f } ... key at: [] __key.1+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+0x31/0x3e0 fs/fcntl.c:907 kill_fasync_rcu fs/fcntl.c:1133 [inline] kill_fasync fs/fcntl.c:1148 [inline] kill_fasync+0x21a/0x520 fs/fcntl.c:1141 sock_wake_async+0x132/0x160 net/socket.c:1462 sk_wake_async_rcu include/net/sock.h:2471 [inline] sk_wake_async_rcu include/net/sock.h:2468 [inline] sock_def_readable+0x535/0x610 net/core/sock.c:3458 tcp_urg net/ipv4/tcp_input.c:5920 [inline] tcp_urg+0x659/0xb80 net/ipv4/tcp_input.c:5900 tcp_rcv_established+0x7d4/0x20d0 net/ipv4/tcp_input.c:6261 tcp_v6_do_rcv+0x897/0x1740 net/ipv6/tcp_ipv6.c:1644 sk_backlog_rcv include/net/sock.h:1121 [inline] __release_sock+0x14c/0x400 net/core/sock.c:3086 release_sock+0x5a/0x220 net/core/sock.c:3640 tcp_sendmsg+0x38/0x50 net/ipv4/tcp.c:1359 inet6_sendmsg+0xb9/0x140 net/ipv6/af_inet6.c:659 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x374/0x4f0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> (&new->fa_lock){....}-{3:3} { INITIAL USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __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+0xb9/0x1e0 fs/fcntl.c:1001 fasync_helper+0xaf/0xd0 fs/fcntl.c:1104 sock_fasync+0x92/0x140 net/socket.c:1433 __fput+0x964/0xb60 fs/file_table.c:447 task_work_run+0x151/0x250 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f INITIAL READ USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __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:1124 [inline] kill_fasync fs/fcntl.c:1148 [inline] kill_fasync+0x138/0x520 fs/fcntl.c:1141 sock_wake_async+0x132/0x160 net/socket.c:1462 sk_wake_async include/net/sock.h:2463 [inline] sk_wake_async+0x102/0x2e0 include/net/sock.h:2459 tcp_rcv_state_process+0x3047/0x4c40 net/ipv4/tcp_input.c:6849 tcp_v6_do_rcv+0x492/0x1740 net/ipv6/tcp_ipv6.c:1667 sk_backlog_rcv include/net/sock.h:1121 [inline] __release_sock+0x14c/0x400 net/core/sock.c:3086 release_sock+0x5a/0x220 net/core/sock.c:3640 tcp_sendmsg+0x38/0x50 net/ipv4/tcp.c:1359 inet6_sendmsg+0xb9/0x140 net/ipv6/af_inet6.c:659 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x374/0x4f0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f } ... key at: [] __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:1124 [inline] kill_fasync fs/fcntl.c:1148 [inline] kill_fasync+0x138/0x520 fs/fcntl.c:1141 mousedev_notify_readers+0x6d9/0xa30 drivers/input/mousedev.c:309 mousedev_event+0x84e/0x1490 drivers/input/mousedev.c:394 input_handle_events_default+0x119/0x1b0 drivers/input/input.c:2646 input_pass_values+0x73b/0x880 drivers/input/input.c:126 input_event_dispose drivers/input/input.c:341 [inline] input_handle_event+0xf0b/0x14d0 drivers/input/input.c:369 input_inject_event+0x1bb/0x370 drivers/input/input.c:428 evdev_write+0x44f/0x750 drivers/input/evdev.c:528 vfs_write+0x24f/0x1150 fs/read_write.c:677 ksys_write+0x207/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> (&dev->event_lock#2){..-.}-{3:3} { IN-SOFTIRQ-W at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 input_inject_event+0xa4/0x370 drivers/input/input.c:423 __led_set_brightness drivers/leds/led-core.c:52 [inline] led_set_brightness_nopm drivers/leds/led-core.c:323 [inline] led_set_brightness_nosleep drivers/leds/led-core.c:354 [inline] led_set_brightness+0x217/0x290 drivers/leds/led-core.c:316 led_trigger_event drivers/leds/led-triggers.c:407 [inline] led_trigger_event+0xda/0x270 drivers/leds/led-triggers.c:395 kbd_propagate_led_state drivers/tty/vt/keyboard.c:1080 [inline] kbd_bh+0x21b/0x300 drivers/tty/vt/keyboard.c:1269 tasklet_action_common+0x254/0x3f0 kernel/softirq.c:811 handle_softirqs+0x216/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] input_inject_event+0x193/0x370 drivers/input/input.c:431 evdev_write+0x44f/0x750 drivers/input/evdev.c:528 vfs_write+0x24f/0x1150 fs/read_write.c:677 ksys_write+0x207/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f INITIAL USE at: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 input_inject_event+0xa4/0x370 drivers/input/input.c:423 __led_set_brightness drivers/leds/led-core.c:52 [inline] led_set_brightness_nopm drivers/leds/led-core.c:323 [inline] led_set_brightness_nosleep drivers/leds/led-core.c:354 [inline] led_set_brightness+0x217/0x290 drivers/leds/led-core.c:316 kbd_led_trigger_activate+0xcb/0x110 drivers/tty/vt/keyboard.c:1036 led_trigger_set+0x59d/0xc60 drivers/leds/led-triggers.c:212 led_match_default_trigger drivers/leds/led-triggers.c:269 [inline] led_match_default_trigger drivers/leds/led-triggers.c:263 [inline] led_trigger_set_default drivers/leds/led-triggers.c:287 [inline] led_trigger_set_default+0x1bd/0x2a0 drivers/leds/led-triggers.c:276 led_classdev_register_ext+0x7bc/0xa10 drivers/leds/led-class.c:566 led_classdev_register include/linux/leds.h:274 [inline] input_leds_connect+0x552/0x8e0 drivers/input/input-leds.c:145 input_attach_handler.isra.0+0x184/0x260 drivers/input/input.c:1032 input_register_device+0xa84/0x1110 drivers/input/input.c:2475 atkbd_connect+0x5d8/0xa10 drivers/input/keyboard/atkbd.c:1340 serio_connect_driver drivers/input/serio/serio.c:43 [inline] serio_driver_probe+0x77/0xb0 drivers/input/serio/serio.c:747 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830 __driver_attach+0x283/0x580 drivers/base/dd.c:1216 bus_for_each_dev+0x13f/0x1d0 drivers/base/bus.c:370 serio_attach_driver drivers/input/serio/serio.c:776 [inline] serio_handle_event+0x247/0xa00 drivers/input/serio/serio.c:213 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c4/0x3a0 kernel/kthread.c:389 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 } ... key at: [] __key.7+0x0/0x40 ... acquired at: mark_usage kernel/locking/lockdep.c:4638 [inline] __lock_acquire+0x12fb/0x3c40 kernel/locking/lockdep.c:5180 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 input_inject_event+0xa4/0x370 drivers/input/input.c:423 __led_set_brightness drivers/leds/led-core.c:52 [inline] led_set_brightness_nopm drivers/leds/led-core.c:323 [inline] led_set_brightness_nosleep drivers/leds/led-core.c:354 [inline] led_set_brightness+0x217/0x290 drivers/leds/led-core.c:316 led_trigger_event drivers/leds/led-triggers.c:407 [inline] led_trigger_event+0xda/0x270 drivers/leds/led-triggers.c:395 kbd_propagate_led_state drivers/tty/vt/keyboard.c:1080 [inline] kbd_bh+0x21b/0x300 drivers/tty/vt/keyboard.c:1269 tasklet_action_common+0x254/0x3f0 kernel/softirq.c:811 handle_softirqs+0x216/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] input_inject_event+0x193/0x370 drivers/input/input.c:431 evdev_write+0x44f/0x750 drivers/input/evdev.c:528 vfs_write+0x24f/0x1150 fs/read_write.c:677 ksys_write+0x207/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f stack backtrace: CPU: 1 UID: 0 PID: 10728 Comm: syz.7.1155 Not tainted 6.13.0-rc6-syzkaller-00182-gf8c6263347e1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_irq_inversion_bug.part.0+0x3ee/0x5a0 kernel/locking/lockdep.c:4121 print_irq_inversion_bug kernel/locking/lockdep.c:4072 [inline] check_usage_forwards kernel/locking/lockdep.c:4154 [inline] mark_lock_irq kernel/locking/lockdep.c:4290 [inline] mark_lock+0x574/0xc60 kernel/locking/lockdep.c:4749 mark_usage kernel/locking/lockdep.c:4638 [inline] __lock_acquire+0x12fb/0x3c40 kernel/locking/lockdep.c:5180 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 input_inject_event+0xa4/0x370 drivers/input/input.c:423 __led_set_brightness drivers/leds/led-core.c:52 [inline] led_set_brightness_nopm drivers/leds/led-core.c:323 [inline] led_set_brightness_nosleep drivers/leds/led-core.c:354 [inline] led_set_brightness+0x217/0x290 drivers/leds/led-core.c:316 led_trigger_event drivers/leds/led-triggers.c:407 [inline] led_trigger_event+0xda/0x270 drivers/leds/led-triggers.c:395 kbd_propagate_led_state drivers/tty/vt/keyboard.c:1080 [inline] kbd_bh+0x21b/0x300 drivers/tty/vt/keyboard.c:1269 tasklet_action_common+0x254/0x3f0 kernel/softirq.c:811 handle_softirqs+0x216/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 b6 60 4c f6 48 89 df e8 0e e0 4c f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 05 c5 3d f6 65 8b 05 b6 81 d9 74 85 c0 74 16 5b RSP: 0018:ffffc90003107bd0 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff888145b8a218 RCX: 1ffffffff2dd2d78 RDX: 0000000000000000 RSI: ffffffff8b6cd9e0 RDI: ffffffff8bd1dee0 RBP: 0000000000000283 R08: 0000000000000001 R09: fffffbfff2dc9baf R10: ffffffff96e4dd7f R11: 0000000000000005 R12: 0000000000000000 R13: 00000000ad077000 R14: ffff888145b8a000 R15: 0000000000000000 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] input_inject_event+0x193/0x370 drivers/input/input.c:431 evdev_write+0x44f/0x750 drivers/input/evdev.c:528 vfs_write+0x24f/0x1150 fs/read_write.c:677 ksys_write+0x207/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f223cb85d29 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f223d9b8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f223cd76080 RCX: 00007f223cb85d29 RDX: 0000000000001b18 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00007f223cc01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f223cd76080 R15: 00007ffe74df9968 ---------------- Code disassembly (best guess): 0: f5 cmc 1: 53 push %rbx 2: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 7: 48 89 fb mov %rdi,%rbx a: 48 83 c7 18 add $0x18,%rdi e: e8 b6 60 4c f6 call 0xf64c60c9 13: 48 89 df mov %rbx,%rdi 16: e8 0e e0 4c f6 call 0xf64ce029 1b: f7 c5 00 02 00 00 test $0x200,%ebp 21: 75 23 jne 0x46 23: 9c pushf 24: 58 pop %rax 25: f6 c4 02 test $0x2,%ah 28: 75 37 jne 0x61 * 2a: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction 2f: e8 05 c5 3d f6 call 0xf63dc539 34: 65 8b 05 b6 81 d9 74 mov %gs:0x74d981b6(%rip),%eax # 0x74d981f1 3b: 85 c0 test %eax,%eax 3d: 74 16 je 0x55 3f: 5b pop %rbx