rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
0-...D
} 2650 jiffies s: 15497 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-rc5-syzkaller-gd5e234ff08a4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:io_serial_in+0x87/0xa0 drivers/tty/serial/8250/8250_port.c:470
Code: c5 cf fe 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 16 66 03 5d 40 89 da ec <5b> 0f b6 c0 5d 41 5c c3 e8 1c 45 19 ff eb a6 e8 75 45 19 ff eb e3
RSP: 0018:ffffc90000006e68 EFLAGS: 00000002
RAX: dffffc0000000060 RBX: 00000000000003fd RCX: 0000000000000000
RDX: 00000000000003fd RSI: ffffffff827b60f0 RDI: ffffffff8bf0ff40
RBP: ffffffff8bf0ff00 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 205d304320202020 R12: 0000000000000000
R13: 0000000000000020 R14: fffffbfff17e2039 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa1b4a66110 CR3: 0000000138003000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_in drivers/tty/serial/8250/8250.h:118 [inline]
serial_lsr_in drivers/tty/serial/8250/8250.h:140 [inline]
wait_for_lsr+0xd7/0x180 drivers/tty/serial/8250/8250_port.c:2110
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3381 [inline]
serial8250_console_write+0xccf/0x1010 drivers/tty/serial/8250/8250_port.c:3459
console_emit_next_record kernel/printk/printk.c:2877 [inline]
console_flush_all+0x49c/0xcc0 kernel/printk/printk.c:2933
console_unlock+0xb8/0x1f0 kernel/printk/printk.c:3007
vprintk_emit+0x1bd/0x600 kernel/printk/printk.c:2307
vprintk+0x84/0xa0 kernel/printk/printk_safe.c:50
_printk+0xbf/0xf0 kernel/printk/printk.c:2328
printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
show_trace_log_lvl+0x1a0/0x390 arch/x86/kernel/dumpstack.c:285
sched_show_task kernel/sched/core.c:9135 [inline]
sched_show_task+0x3e6/0x5f0 kernel/sched/core.c:9109
show_state_filter+0xf4/0x320 kernel/sched/core.c:9180
k_spec drivers/tty/vt/keyboard.c:667 [inline]
k_spec+0xe5/0x140 drivers/tty/vt/keyboard.c:656
kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
kbd_event+0xce1/0x17b0 drivers/tty/vt/keyboard.c:1543
input_to_handler+0x3b9/0x4c0 drivers/input/input.c:132
input_pass_values.part.0+0x230/0x760 drivers/input/input.c:161
input_pass_values drivers/input/input.c:150 [inline]
input_event_dispose+0x537/0x730 drivers/input/input.c:387
input_handle_event+0x120/0xe70 drivers/input/input.c:404
input_event drivers/input/input.c:433 [inline]
input_event+0x83/0xa0 drivers/input/input.c:425
hidinput_hid_event+0x955/0x2060 drivers/hid/hid-input.c:1711
hid_process_event+0x491/0x5c0 drivers/hid/hid-core.c:1534
hid_input_array_field+0x4d7/0x660 drivers/hid/hid-core.c:1646
hid_process_report drivers/hid/hid-core.c:1688 [inline]
hid_report_raw_event+0xa74/0x1220 drivers/hid/hid-core.c:2009
hid_input_report+0x341/0x440 drivers/hid/hid-core.c:2083
hid_irq_in+0x35d/0x850 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+0x13b6/0x3400 drivers/usb/gadget/udc/dummy_hcd.c:1987
call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
expire_timers+0x29b/0x4b0 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+0x1c1/0x8e8 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu kernel/softirq.c:650 [inline]
irq_exit_rcu+0x11b/0x190 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:113
Code: eb 03 83 e3 01 89 de 0f 1f 44 00 00 84 db 75 1b 0f 1f 44 00 00 66 90 0f 1f 44 00 00 0f 00 2d 87 f6 60 00 0f 1f 44 00 00 fb f4 5b c3 cc 0f 1f 00 66 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 0f
RSP: 0018:ffffffff87a07d18 EFLAGS: 00000246
RAX: ffffffff87a2b780 RBX: 0000000000000000 RCX: ffffffff862cd465
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888105e7f064 R08: 0000000000000001 R09: ffff8881f6636a6b
R10: ffffed103ecc6d4d R11: 0000000000000000 R12: 0000000000000001
R13: ffff888105e7f000 R14: ffff888105e7f064 R15: 0000000000000000
acpi_idle_do_entry+0x53/0x70 drivers/acpi/processor_idle.c:573
acpi_idle_enter+0x173/0x290 drivers/acpi/processor_idle.c:711
cpuidle_enter_state+0xd3/0x6f0 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:215 [inline]
do_idle+0x2fe/0x3c0 kernel/sched/idle.c:282
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379
rest_init+0x16f/0x2b0 init/main.c:735
arch_call_rest_init+0x13/0x30 init/main.c:834
start_kernel+0x3b1/0x490 init/main.c:1088
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:556
x86_64_start_kernel+0xb3/0xc0 arch/x86/kernel/head64.c:537
secondary_startup_64_no_verify+0xf4/0xfb
schedule+0xde/0x1a0 kernel/sched/core.c:6745
futex_wait_queue+0xf9/0x1f0 kernel/futex/waitwake.c:355
futex_wait+0x292/0x680 kernel/futex/waitwake.c:656
do_futex+0x2e8/0x360 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex kernel/futex/syscalls.c:164 [inline]
__x64_sys_futex+0x1ca/0x4d0 kernel/futex/syscalls.c:164
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: 0033:0x7f66185ff199
RSP: 002b:00007f6617951218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f661871f058 RCX: 00007f66185ff199
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f661871f058
RBP: 00007f661871f050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f661871f05c
R13: 00007ffe9b9fc05f R14: 00007f6617951300 R15: 0000000000022000
task:syz-executor.3 state:S
stack:28736 pid:31303 ppid:2476 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xaa9/0x2f10 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
futex_wait_queue+0xf9/0x1f0 kernel/futex/waitwake.c:355
futex_wait+0x292/0x680 kernel/futex/waitwake.c:656
do_futex+0x2e8/0x360 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex kernel/futex/syscalls.c:164 [inline]
__x64_sys_futex+0x1ca/0x4d0 kernel/futex/syscalls.c:164
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: 0033:0x7fdc863b4199
RSP: 002b:00007ffda9d3c8a8 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fdc864d3f8c RCX: 00007fdc863b4199
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fdc864d3f8c
RBP: 00007fdc864d3f80 R08: 00007ffda9dc5080 R09: 0000000000000000
R10: 00007ffda9d3c990 R11: 0000000000000246 R12: 000000000028f332
R13: 00007ffda9d3c990 R14: 00007ffda9d3c9b0 R15: 0000000000000bea
task:syz-executor.3 state:S stack:29008 pid:31304 ppid:2476 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xaa9/0x2f10 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
___down_common kernel/locking/semaphore.c:225 [inline]
__down_common+0x345/0x680 kernel/locking/semaphore.c:246
down_interruptible+0x7f/0xa0 kernel/locking/semaphore.c:87
raw_event_queue_fetch drivers/usb/gadget/legacy/raw_gadget.c:99 [inline]
raw_ioctl_event_fetch drivers/usb/gadget/legacy/raw_gadget.c:588 [inline]
raw_ioctl+0x13d4/0x2a60 drivers/usb/gadget/legacy/raw_gadget.c:1256
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
RIP: 0033:0x7fdc863b3f87
RSP: 002b:00007fdc85725098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdc85726110 RCX: 00007fdc863b3f87
RDX: 00007fdc85726110 RSI: 0000000080085502 RDI: 0000000000000003
RBP: 0000000000000003 R08: 000000000000ffff R09: 000000000000000b
R10: 00007fdc85725140 R11: 0000000000000246 R12: 0000000800000000
R13: 0000000000000000 R14: 0000000020001080 R15: 00007fdc8641c265
task:syz-executor.4 state:D stack:28736 pid:31324 ppid:2481 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xaa9/0x2f10 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
synchronize_rcu+0x2f1/0x3a0 kernel/rcu/tree.c:3499
evdev_detach_client drivers/input/evdev.c:386 [inline]
evdev_release+0x243/0x420 drivers/input/evdev.c:449
__fput+0x27c/0xa90 fs/file_table.c:321
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+0x1e4/0x1f0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5c88b2404b
RSP: 002b:00007fffd6e2b920 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f5c88b2404b
RDX: 00007f5c886e77b8 RSI: ffffffffffffffff RDI: 0000000000000004
RBP: 00007f5c88c93980 R08: 0000000000000000 R09: 00007f5c886e6000
R10: 00007f5c886e77c0 R11: 0000000000000293 R12: 000000000029130f
R13: 00007fffd6e2ba20 R14: 00007f5c88c91f80 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff87c9f270
(rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/13:
#0:
ffffffff87c9ef70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
6 locks held by kworker/1:2/2318:
2 locks held by getty/2415:
#0: ffff88810b7a7098 (&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000452f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
2 locks held by kworker/1:8/8569:
#0: ffff888100072538 ((wq_completion)rcu_gp
){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000d38fdb0 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
5 locks held by kworker/0:5/16634:
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000dbffdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff888105f60190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#2: ffff888105f60190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4ed0 drivers/usb/core/hub.c:5739
#3: ffff888105f634f0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3147 [inline]
#3: ffff888105f634f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5303 [inline]
#3: ffff888105f634f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
#3: ffff888105f634f0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5711 [inline]
#3: ffff888105f634f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2847/0x4ed0 drivers/usb/core/hub.c:5793
#4:
ffff888105757868 (
hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5304 [inline]
hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5711 [inline]
hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x287c/0x4ed0 drivers/usb/core/hub.c:5793
6 locks held by kworker/1:1/20204:
#0: ffff88810ce52d38
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000258fdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff888106388190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#2: ffff888106388190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4ed0 drivers/usb/core/hub.c:5739
#3:
ffff888119a53190
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
(&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x8a0 drivers/usb/core/hub.c:2229
#4: ffff888116594160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#4: ffff888116594160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff888116594160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
#5: ffff88811c241a20 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#5: ffff88811c241a20 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#5: ffff88811c241a20 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
6 locks held by kworker/0:0/24700:
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff88810ce52d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000e8efdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2:
ffff888106368190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
ffff888106368190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4ed0 drivers/usb/core/hub.c:5739
#3: ffff88810636b4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3147 [inline]
#3: ffff88810636b4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5303 [inline]
#3: ffff88810636b4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
#3: ffff88810636b4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5711 [inline]
#3: ffff88810636b4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2847/0x4ed0 drivers/usb/core/hub.c:5793
#4: ffff888105fef068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5304 [inline]
#4: ffff888105fef068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
#4: ffff888105fef068 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5711 [inline]
#4: ffff888105fef068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x287c/0x4ed0 drivers/usb/core/hub.c:5793
#5: ffffffff886791d0 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x189/0x1dd0 drivers/usb/core/hub.c:2962
1 lock held by syz-executor.5/31298:
#0: ffffffff87cab2f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#0: ffffffff87cab2f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.4/31324:
#0: ffffffff87cab2f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff87cab2f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
=============================================
keytouch 0003:0926:3333.0100: can't resubmit intr, dummy_hcd.4-1/input0, status -19
keytouch 0003:0926:3333.0100: usb_submit_urb(ctrl) failed: -19
m920x_read = error: -19
dvb-usb: error -19 while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error -19 while querying for an remote control event.
usb 3-1: new high-speed USB device number 64 using dummy_hcd
usb 3-1: Using ep0 maxpacket: 32
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: New USB device found, idVendor=046d, idProduct=c31c, bcdDevice=1c.8f
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
hub 3-1:0.0: USB hub found
hub 3-1:0.0: 1 port detected
hub 3-1:0.0: config failed, can't get hub status (err -5)
usbhid 3-1:0.0: can't add hid device: -71
usbhid: probe of 3-1:0.0 failed with error -71
usb 3-1: reset high-speed USB device number 64 using dummy_hcd
usb 3-1: device firmware changed
usb 3-1: USB disconnect, device number 64
usb 3-1: new high-speed USB device number 65 using dummy_hcd
usb 3-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-1: Product: syz
usb 3-1: Manufacturer: syz
usb 3-1: SerialNumber: syz
usb 3-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
m920x_read = error: -19
dvb-usb: error -19 while querying for an remote control event.
usblp0: nonzero read bulk status received: -71
usb 3-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
ath9k_htc 3-1:1.0: ath9k_htc: Target is unresponsive
ath9k_htc: Failed to initialize the device