[ OK ] Started Getty on tty6. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty5. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.68' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 54.122472][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 54.483525][ T5] usb 1-1: config 0 has an invalid interface number: 123 but max is 0 [ 54.492151][ T5] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 54.503380][ T5] usb 1-1: config 0 has no interface number 0 [ 54.510081][ T5] usb 1-1: config 0 interface 123 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 15 [ 54.682496][ T5] usb 1-1: New USB device found, idVendor=0009, idProduct=0000, bcdDevice= 1.00 [ 54.691565][ T5] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 54.700397][ T5] usb 1-1: Product: syz [ 54.704945][ T5] usb 1-1: Manufacturer: syz [ 54.709911][ T5] usb 1-1: SerialNumber: syz [ 54.719870][ T5] usb 1-1: config 0 descriptor?? [ 54.965105][ T8421] [ 54.967583][ T8421] ===================================================== [ 54.974497][ T8421] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 54.982126][ T8421] 5.14.0-rc2-syzkaller #0 Not tainted [ 54.987474][ T8421] ----------------------------------------------------- [ 54.994392][ T8421] syz-executor137/8421 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 55.002619][ T8421] ffff8880124e88b8 (&f->f_owner.lock){.+.+}-{2:2}, at: send_sigio+0x2f/0x300 [ 55.011839][ T8421] [ 55.011839][ T8421] and this task is already holding: [ 55.019276][ T8421] ffff88803532b018 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x13b/0x430 [ 55.028517][ T8421] which would create a new lock dependency: [ 55.034731][ T8421] (&new->fa_lock){....}-{2:2} -> (&f->f_owner.lock){.+.+}-{2:2} [ 55.042450][ T8421] [ 55.042450][ T8421] but this new dependency connects a HARDIRQ-irq-safe lock: [ 55.052051][ T8421] (&dev->event_lock){-...}-{2:2} [ 55.052067][ T8421] [ 55.052067][ T8421] ... which became HARDIRQ-irq-safe at: [ 55.065021][ T8421] lock_acquire+0x182/0x4a0 [ 55.070048][ T8421] _raw_spin_lock_irqsave+0xb3/0x100 [ 55.075588][ T8421] input_event+0x89/0xc0 [ 55.079899][ T8421] psmouse_report_standard_packet+0x4f/0x200 [ 55.086400][ T8421] psmouse_process_byte+0x44f/0x640 [ 55.091871][ T8421] psmouse_handle_byte+0x44/0x4a0 [ 55.096973][ T8421] psmouse_interrupt+0x6d0/0x10c0 [ 55.102173][ T8421] serio_interrupt+0x88/0x130 [ 55.106917][ T8421] i8042_interrupt+0x34c/0x740 [ 55.111760][ T8421] __handle_irq_event_percpu+0x20a/0x6d0 [ 55.117636][ T8421] handle_irq_event+0x10a/0x300 [ 55.122642][ T8421] handle_edge_irq+0x245/0xbe0 [ 55.128007][ T8421] __common_interrupt+0xce/0x1e0 [ 55.133022][ T8421] common_interrupt+0x9c/0xc0 [ 55.138638][ T8421] asm_common_interrupt+0x1e/0x40 [ 55.143730][ T8421] _raw_spin_unlock_irqrestore+0xbc/0x120 [ 55.149524][ T8421] i8042_aux_write+0x118/0x190 [ 55.154383][ T8421] ps2_do_sendbyte+0x210/0x710 [ 55.159223][ T8421] ps2_sendbyte+0x5c/0x110 [ 55.163705][ T8421] cypress_ps2_read_cmd_status+0x151/0x600 [ 55.169891][ T8421] cypress_send_ext_cmd+0xfa/0x3e0 [ 55.175069][ T8421] cypress_detect+0x80/0x210 [ 55.179724][ T8421] psmouse_extensions+0x14a1/0x2130 [ 55.185084][ T8421] psmouse_switch_protocol+0x307/0x840 [ 55.190607][ T8421] psmouse_connect+0x918/0x1630 [ 55.195654][ T8421] serio_driver_probe+0x76/0x90 [ 55.200618][ T8421] call_driver_probe+0x96/0x250 [ 55.205726][ T8421] really_probe+0x223/0x9c0 [ 55.210397][ T8421] __driver_probe_device+0x1f8/0x3e0 [ 55.215926][ T8421] driver_probe_device+0x50/0x240 [ 55.221032][ T8421] __driver_attach+0x2ba/0x520 [ 55.225863][ T8421] bus_for_each_dev+0x168/0x1d0 [ 55.230998][ T8421] serio_handle_event+0x8d1/0x1070 [ 55.236359][ T8421] process_one_work+0x833/0x10c0 [ 55.241872][ T8421] worker_thread+0xac1/0x1320 [ 55.246629][ T8421] kthread+0x453/0x480 [ 55.250913][ T8421] ret_from_fork+0x1f/0x30 [ 55.255491][ T8421] [ 55.255491][ T8421] to a HARDIRQ-irq-unsafe lock: [ 55.262749][ T8421] (&f->f_owner.lock){.+.+}-{2:2} [ 55.262768][ T8421] [ 55.262768][ T8421] ... which became HARDIRQ-irq-unsafe at: [ 55.275819][ T8421] ... [ 55.275823][ T8421] lock_acquire+0x182/0x4a0 [ 55.283226][ T8421] _raw_read_lock+0x32/0x40 [ 55.287902][ T8421] f_getown+0x22/0x210 [ 55.292236][ T8421] sock_ioctl+0x2c6/0x6a0 [ 55.296781][ T8421] __se_sys_ioctl+0xfb/0x170 [ 55.301477][ T8421] do_syscall_64+0x3d/0xb0 [ 55.305972][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.312037][ T8421] [ 55.312037][ T8421] other info that might help us debug this: [ 55.312037][ T8421] [ 55.322624][ T8421] Chain exists of: [ 55.322624][ T8421] &dev->event_lock --> &new->fa_lock --> &f->f_owner.lock [ 55.322624][ T8421] [ 55.335907][ T8421] Possible interrupt unsafe locking scenario: [ 55.335907][ T8421] [ 55.344704][ T8421] CPU0 CPU1 [ 55.350097][ T8421] ---- ---- [ 55.355457][ T8421] lock(&f->f_owner.lock); [ 55.359952][ T8421] local_irq_disable(); [ 55.366688][ T8421] lock(&dev->event_lock); [ 55.373712][ T8421] lock(&new->fa_lock); [ 55.380470][ T8421] [ 55.383911][ T8421] lock(&dev->event_lock); [ 55.388570][ T8421] [ 55.388570][ T8421] *** DEADLOCK *** [ 55.388570][ T8421] [ 55.396692][ T8421] 8 locks held by syz-executor137/8421: [ 55.402331][ T8421] #0: ffff88802399e110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x234/0x780 [ 55.411684][ T8421] #1: ffff888023704230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xb4/0x270 [ 55.421701][ T8421] #2: ffffffff8c7177c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 55.431700][ T8421] #3: ffffffff8c7177c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 55.441649][ T8421] #4: ffffffff8c7177c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 55.451315][ T8421] #5: ffff888037eae028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values+0xd9/0xaa0 [ 55.463330][ T8421] #6: ffffffff8c7177c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 55.473769][ T8421] #7: ffff88803532b018 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x13b/0x430 [ 55.485228][ T8421] [ 55.485228][ T8421] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 55.496004][ T8421] -> (&dev->event_lock){-...}-{2:2} { [ 55.501725][ T8421] IN-HARDIRQ-W at: [ 55.505871][ T8421] lock_acquire+0x182/0x4a0 [ 55.512451][ T8421] _raw_spin_lock_irqsave+0xb3/0x100 [ 55.520265][ T8421] input_event+0x89/0xc0 [ 55.526519][ T8421] psmouse_report_standard_packet+0x4f/0x200 [ 55.535023][ T8421] psmouse_process_byte+0x44f/0x640 [ 55.542557][ T8421] psmouse_handle_byte+0x44/0x4a0 [ 55.551317][ T8421] psmouse_interrupt+0x6d0/0x10c0 [ 55.558436][ T8421] serio_interrupt+0x88/0x130 [ 55.565379][ T8421] i8042_interrupt+0x34c/0x740 [ 55.572294][ T8421] __handle_irq_event_percpu+0x20a/0x6d0 [ 55.580113][ T8421] handle_irq_event+0x10a/0x300 [ 55.587144][ T8421] handle_edge_irq+0x245/0xbe0 [ 55.595276][ T8421] __common_interrupt+0xce/0x1e0 [ 55.602365][ T8421] common_interrupt+0x9c/0xc0 [ 55.609109][ T8421] asm_common_interrupt+0x1e/0x40 [ 55.616477][ T8421] _raw_spin_unlock_irqrestore+0xbc/0x120 [ 55.624461][ T8421] i8042_aux_write+0x118/0x190 [ 55.631409][ T8421] ps2_do_sendbyte+0x210/0x710 [ 55.638698][ T8421] ps2_sendbyte+0x5c/0x110 [ 55.649207][ T8421] cypress_ps2_read_cmd_status+0x151/0x600 [ 55.657010][ T8421] cypress_send_ext_cmd+0xfa/0x3e0 [ 55.664197][ T8421] cypress_detect+0x80/0x210 [ 55.670938][ T8421] psmouse_extensions+0x14a1/0x2130 [ 55.678120][ T8421] psmouse_switch_protocol+0x307/0x840 [ 55.685947][ T8421] psmouse_connect+0x918/0x1630 [ 55.693059][ T8421] serio_driver_probe+0x76/0x90 [ 55.700121][ T8421] call_driver_probe+0x96/0x250 [ 55.707054][ T8421] really_probe+0x223/0x9c0 [ 55.713904][ T8421] __driver_probe_device+0x1f8/0x3e0 [ 55.721537][ T8421] driver_probe_device+0x50/0x240 [ 55.728738][ T8421] __driver_attach+0x2ba/0x520 [ 55.735770][ T8421] bus_for_each_dev+0x168/0x1d0 [ 55.742595][ T8421] serio_handle_event+0x8d1/0x1070 [ 55.750303][ T8421] process_one_work+0x833/0x10c0 [ 55.757320][ T8421] worker_thread+0xac1/0x1320 [ 55.764231][ T8421] kthread+0x453/0x480 [ 55.770448][ T8421] ret_from_fork+0x1f/0x30 [ 55.777363][ T8421] INITIAL USE at: [ 55.781582][ T8421] lock_acquire+0x182/0x4a0 [ 55.788256][ T8421] _raw_spin_lock_irqsave+0xb3/0x100 [ 55.795952][ T8421] input_inject_event+0xb4/0x270 [ 55.803388][ T8421] led_trigger_event+0x6f/0xd0 [ 55.810461][ T8421] kbd_led_trigger_activate+0xb8/0x100 [ 55.818066][ T8421] led_trigger_set+0x514/0x940 [ 55.824729][ T8421] led_trigger_set_default+0x1ca/0x200 [ 55.832081][ T8421] led_classdev_register_ext+0x690/0x870 [ 55.839610][ T8421] input_leds_connect+0x53e/0x790 [ 55.846607][ T8421] input_register_device+0xe25/0x1350 [ 55.853889][ T8421] atkbd_connect+0x74f/0xa60 [ 55.861796][ T8421] serio_driver_probe+0x76/0x90 [ 55.868917][ T8421] call_driver_probe+0x96/0x250 [ 55.875675][ T8421] really_probe+0x223/0x9c0 [ 55.882075][ T8421] __driver_probe_device+0x1f8/0x3e0 [ 55.889339][ T8421] driver_probe_device+0x50/0x240 [ 55.896252][ T8421] __driver_attach+0x2ba/0x520 [ 55.903165][ T8421] bus_for_each_dev+0x168/0x1d0 [ 55.909922][ T8421] serio_handle_event+0x8d1/0x1070 [ 55.917008][ T8421] process_one_work+0x833/0x10c0 [ 55.923929][ T8421] worker_thread+0xac1/0x1320 [ 55.930715][ T8421] kthread+0x453/0x480 [ 55.936712][ T8421] ret_from_fork+0x1f/0x30 [ 55.943436][ T8421] } [ 55.946127][ T8421] ... key at: [] input_allocate_device.__key.6+0x0/0x40 [ 55.956076][ T8421] -> (&client->buffer_lock){....}-{2:2} { [ 55.961886][ T8421] INITIAL USE at: [ 55.965944][ T8421] lock_acquire+0x182/0x4a0 [ 55.972352][ T8421] _raw_spin_lock+0x2a/0x40 [ 55.978589][ T8421] evdev_pass_values+0xd9/0xaa0 [ 55.985636][ T8421] evdev_events+0x195/0x280 [ 55.992048][ T8421] input_pass_values+0x87c/0x11e0 [ 55.998963][ T8421] input_handle_event+0xb99/0x1550 [ 56.005970][ T8421] input_inject_event+0x189/0x270 [ 56.012799][ T8421] evdev_write+0x5f0/0x780 [ 56.019070][ T8421] vfs_write+0x289/0xc90 [ 56.025323][ T8421] ksys_write+0x171/0x2a0 [ 56.031937][ T8421] do_syscall_64+0x3d/0xb0 [ 56.038859][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.046556][ T8421] } [ 56.049119][ T8421] ... key at: [] evdev_open.__key.23+0x0/0x40 [ 56.057602][ T8421] ... acquired at: [ 56.061556][ T8421] lock_acquire+0x182/0x4a0 [ 56.066406][ T8421] _raw_spin_lock+0x2a/0x40 [ 56.071417][ T8421] evdev_pass_values+0xd9/0xaa0 [ 56.076726][ T8421] evdev_events+0x195/0x280 [ 56.081665][ T8421] input_pass_values+0x87c/0x11e0 [ 56.086849][ T8421] input_handle_event+0xb99/0x1550 [ 56.092289][ T8421] input_inject_event+0x189/0x270 [ 56.097475][ T8421] evdev_write+0x5f0/0x780 [ 56.102050][ T8421] vfs_write+0x289/0xc90 [ 56.107255][ T8421] ksys_write+0x171/0x2a0 [ 56.112040][ T8421] do_syscall_64+0x3d/0xb0 [ 56.116899][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.122948][ T8421] [ 56.125599][ T8421] -> (&new->fa_lock){....}-{2:2} { [ 56.130789][ T8421] INITIAL READ USE at: [ 56.135336][ T8421] lock_acquire+0x182/0x4a0 [ 56.141906][ T8421] _raw_read_lock+0x32/0x40 [ 56.148664][ T8421] kill_fasync+0x13b/0x430 [ 56.155170][ T8421] evdev_pass_values+0x58a/0xaa0 [ 56.162087][ T8421] evdev_events+0x195/0x280 [ 56.168761][ T8421] input_pass_values+0x87c/0x11e0 [ 56.176248][ T8421] input_handle_event+0xb99/0x1550 [ 56.183447][ T8421] input_inject_event+0x189/0x270 [ 56.190551][ T8421] evdev_write+0x5f0/0x780 [ 56.197284][ T8421] vfs_write+0x289/0xc90 [ 56.203916][ T8421] ksys_write+0x171/0x2a0 [ 56.211071][ T8421] do_syscall_64+0x3d/0xb0 [ 56.217685][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.225734][ T8421] } [ 56.228211][ T8421] ... key at: [] fasync_insert_entry.__key+0x0/0x40 [ 56.236955][ T8421] ... acquired at: [ 56.240918][ T8421] lock_acquire+0x182/0x4a0 [ 56.245582][ T8421] _raw_read_lock+0x32/0x40 [ 56.250475][ T8421] kill_fasync+0x13b/0x430 [ 56.255142][ T8421] evdev_pass_values+0x58a/0xaa0 [ 56.260480][ T8421] evdev_events+0x195/0x280 [ 56.265403][ T8421] input_pass_values+0x87c/0x11e0 [ 56.270701][ T8421] input_handle_event+0xb99/0x1550 [ 56.276798][ T8421] input_inject_event+0x189/0x270 [ 56.282442][ T8421] evdev_write+0x5f0/0x780 [ 56.287332][ T8421] vfs_write+0x289/0xc90 [ 56.291995][ T8421] ksys_write+0x171/0x2a0 [ 56.297090][ T8421] do_syscall_64+0x3d/0xb0 [ 56.301865][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.308049][ T8421] [ 56.310388][ T8421] [ 56.310388][ T8421] the dependencies between the lock to be acquired [ 56.310394][ T8421] and HARDIRQ-irq-unsafe lock: [ 56.324455][ T8421] -> (&f->f_owner.lock){.+.+}-{2:2} { [ 56.329924][ T8421] HARDIRQ-ON-R at: [ 56.334218][ T8421] lock_acquire+0x182/0x4a0 [ 56.340760][ T8421] _raw_read_lock+0x32/0x40 [ 56.347462][ T8421] f_getown+0x22/0x210 [ 56.353361][ T8421] sock_ioctl+0x2c6/0x6a0 [ 56.359755][ T8421] __se_sys_ioctl+0xfb/0x170 [ 56.366345][ T8421] do_syscall_64+0x3d/0xb0 [ 56.372854][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.380683][ T8421] SOFTIRQ-ON-R at: [ 56.384749][ T8421] lock_acquire+0x182/0x4a0 [ 56.391358][ T8421] _raw_read_lock+0x32/0x40 [ 56.397536][ T8421] f_getown+0x22/0x210 [ 56.403352][ T8421] sock_ioctl+0x2c6/0x6a0 [ 56.409617][ T8421] __se_sys_ioctl+0xfb/0x170 [ 56.416127][ T8421] do_syscall_64+0x3d/0xb0 [ 56.422571][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.430730][ T8421] INITIAL READ USE at: [ 56.435095][ T8421] lock_acquire+0x182/0x4a0 [ 56.441937][ T8421] _raw_read_lock+0x32/0x40 [ 56.449067][ T8421] f_getown+0x22/0x210 [ 56.455233][ T8421] sock_ioctl+0x2c6/0x6a0 [ 56.461833][ T8421] __se_sys_ioctl+0xfb/0x170 [ 56.469556][ T8421] do_syscall_64+0x3d/0xb0 [ 56.476974][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.485110][ T8421] } [ 56.487605][ T8421] ... key at: [] __alloc_file.__key+0x0/0x10 [ 56.496202][ T8421] ... acquired at: [ 56.499989][ T8421] lock_acquire+0x182/0x4a0 [ 56.504760][ T8421] _raw_read_lock_irqsave+0xbb/0x100 [ 56.510481][ T8421] send_sigio+0x2f/0x300 [ 56.515348][ T8421] kill_fasync+0x1e3/0x430 [ 56.520113][ T8421] evdev_pass_values+0x58a/0xaa0 [ 56.526016][ T8421] evdev_events+0x195/0x280 [ 56.530764][ T8421] input_pass_values+0x87c/0x11e0 [ 56.536395][ T8421] input_handle_event+0xb99/0x1550 [ 56.542105][ T8421] input_inject_event+0x189/0x270 [ 56.548375][ T8421] evdev_write+0x5f0/0x780 [ 56.553577][ T8421] vfs_write+0x289/0xc90 [ 56.557984][ T8421] ksys_write+0x171/0x2a0 [ 56.562834][ T8421] do_syscall_64+0x3d/0xb0 [ 56.567498][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.574019][ T8421] [ 56.576442][ T8421] [ 56.576442][ T8421] stack backtrace: [ 56.582403][ T8421] CPU: 0 PID: 8421 Comm: syz-executor137 Not tainted 5.14.0-rc2-syzkaller #0 [ 56.591259][ T8421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.602476][ T8421] Call Trace: [ 56.605937][ T8421] dump_stack_lvl+0x1ae/0x29f [ 56.610916][ T8421] ? show_regs_print_info+0x12/0x12 [ 56.617241][ T8421] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 56.623883][ T8421] ? print_shortest_lock_dependencies+0xd4/0x150 [ 56.630725][ T8421] check_prevs_add+0x4eaa/0x5b30 [ 56.636039][ T8421] ? reacquire_held_locks+0x5f0/0x5f0 [ 56.642460][ T8421] ? reacquire_held_locks+0x5f0/0x5f0 [ 56.647998][ T8421] ? __lock_acquire+0x6100/0x6100 [ 56.653540][ T8421] ? __rcu_read_lock+0x60/0x60 [ 56.658771][ T8421] ? stack_trace_save+0x1e0/0x1e0 [ 56.663984][ T8421] ? stack_trace_save+0x1e0/0x1e0 [ 56.669220][ T8421] ? is_bpf_text_address+0x253/0x270 [ 56.674758][ T8421] ? stack_trace_save+0x1e0/0x1e0 [ 56.680172][ T8421] ? __kernel_text_address+0x93/0x100 [ 56.686461][ T8421] ? unwind_get_return_address+0x48/0x80 [ 56.693184][ T8421] ? arch_stack_walk+0x98/0xe0 [ 56.698137][ T8421] ? stack_trace_save+0x104/0x1e0 [ 56.703179][ T8421] ? stack_trace_snprint+0xe0/0xe0 [ 56.708946][ T8421] ? mark_lock+0x199/0x1eb0 [ 56.713645][ T8421] ? lockdep_unlock+0x145/0x2e0 [ 56.718749][ T8421] ? lockdep_lock+0x2c0/0x2c0 [ 56.723595][ T8421] ? __bfs+0x700/0x700 [ 56.727753][ T8421] ? lockdep_unlock+0x145/0x2e0 [ 56.733188][ T8421] ? mark_lock+0x5dc/0x1eb0 [ 56.739110][ T8421] ? mark_lock+0x5dc/0x1eb0 [ 56.745005][ T8421] ? __bfs+0x700/0x700 [ 56.749654][ T8421] ? register_lock_class+0xd7/0x1210 [ 56.756199][ T8421] ? lockdep_lock+0x102/0x2c0 [ 56.761907][ T8421] ? lockdep_unlock+0x145/0x2e0 [ 56.767220][ T8421] ? register_lock_class+0xb2d/0x1210 [ 56.774089][ T8421] __lock_acquire+0x4476/0x6100 [ 56.779804][ T8421] ? lockdep_unlock+0x145/0x2e0 [ 56.785235][ T8421] ? trace_lock_acquire+0x190/0x190 [ 56.791143][ T8421] ? trace_lock_acquire+0x190/0x190 [ 56.796372][ T8421] ? trace_lock_acquire+0x190/0x190 [ 56.802172][ T8421] ? rcu_read_lock_sched_held+0x87/0x110 [ 56.808422][ T8421] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 56.814448][ T8421] lock_acquire+0x182/0x4a0 [ 56.819571][ T8421] ? send_sigio+0x2f/0x300 [ 56.824473][ T8421] ? read_lock_is_recursive+0x10/0x10 [ 56.830224][ T8421] ? read_lock_is_recursive+0x10/0x10 [ 56.836439][ T8421] _raw_read_lock_irqsave+0xbb/0x100 [ 56.841858][ T8421] ? send_sigio+0x2f/0x300 [ 56.846366][ T8421] ? _raw_read_lock+0x40/0x40 [ 56.851185][ T8421] ? do_raw_spin_lock+0x151/0x8e0 [ 56.856340][ T8421] send_sigio+0x2f/0x300 [ 56.860610][ T8421] kill_fasync+0x1e3/0x430 [ 56.865226][ T8421] evdev_pass_values+0x58a/0xaa0 [ 56.870431][ T8421] ? evdev_pass_values+0x5f1/0xaa0 [ 56.875528][ T8421] evdev_events+0x195/0x280 [ 56.880016][ T8421] ? evdev_event+0x170/0x170 [ 56.884678][ T8421] input_pass_values+0x87c/0x11e0 [ 56.889689][ T8421] input_handle_event+0xb99/0x1550 [ 56.894961][ T8421] input_inject_event+0x189/0x270 [ 56.899977][ T8421] evdev_write+0x5f0/0x780 [ 56.904395][ T8421] ? evdev_read+0xe10/0xe10 [ 56.909210][ T8421] ? rcu_read_lock_sched_held+0x87/0x110 [ 56.915090][ T8421] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 56.921060][ T8421] ? rw_verify_area+0x1b8/0x370 [ 56.926154][ T8421] ? fsnotify_perm+0x63/0x4d0 [ 56.931298][ T8421] ? evdev_read+0xe10/0xe10 [ 56.935789][ T8421] vfs_write+0x289/0xc90 [ 56.940704][ T8421] ? file_end_write+0x230/0x230 [ 56.945830][ T8421] ? __context_tracking_exit+0x7a/0xd0 [ 56.951705][ T8421] ? __lock_acquire+0x6100/0x6100 [ 56.957185][ T8421] ? __fdget_pos+0x1d8/0x2f0 [ 56.962929][ T8421] ksys_write+0x171/0x2a0 [ 56.968370][ T8421] ? __ia32_sys_read+0x80/0x80 [ 56.973524][ T8421] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 56.979691][ T8421] ? lockdep_hardirqs_on+0x8d/0x130 [ 56.984899][ T8421] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 56.991154][ T8421] do_syscall_64+0x3d/0xb0 [ 56.995568][ T8421] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 57.001644][ T8421] RIP: 0033:0x446d59 [ 57.005700][ T8421] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 14 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 c0 ff ff ff f7 d8 64 89 01 48