usb 3-1: config 0 has no interface number 0 usb 3-1: New USB device found, idVendor=0fc5, idProduct=1227, bcdDevice=fb.f1 usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 3-1: config 0 descriptor?? usbsevseg 3-1:0.254: USB 7 Segment device now attached INFO: task kworker/1:0:17 blocked for more than 143 seconds. Not tainted 5.1.0-rc4-319354-g9a33b36 #3 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/1:0 D25400 17 2 0x80000000 Workqueue: usb_hub_wq hub_event Call Trace: schedule+0x8f/0x180 kernel/sched/core.c:3562 schedule_timeout+0x477/0xdb0 kernel/time/timer.c:1803 usb_start_wait_urb.constprop.0+0x2a2/0x2e0 drivers/net/usb/kaweth.c:1250 usb 3-1: USB disconnect, device number 108 kaweth_internal_control_msg drivers/net/usb/kaweth.c:1286 [inline] kaweth_control.constprop.0+0x365/0x4f0 drivers/net/usb/kaweth.c:281 usbsevseg 3-1:0.254: USB 7 Segment now disconnected kaweth_read_configuration drivers/net/usb/kaweth.c:299 [inline] kaweth_probe.cold+0xb1/0x1359 drivers/net/usb/kaweth.c:1077 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb-fuzzer-gadget dummy_udc.2: failed to start USB fuzzer: -22 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Showing all locks held in the system: 5 locks held by kworker/1:0/17: #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 000000003d52231a ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 000000000797ab9b (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 000000000797ab9b (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000e949159b (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 00000000e949159b (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 0000000034867162 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 0000000034867162 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 5 locks held by kworker/1:1/21: #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 0000000048916797 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 usb 5-1: new high-speed USB device number 111 using dummy_hcd #2: 00000000c6c3d266 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000c6c3d266 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000f7037ff0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 00000000f7037ff0 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 00000000a1a2d1ca (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000a1a2d1ca (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 1 lock held by khungtaskd/23: #0: 00000000f1b937ff (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:5059 1 lock held by rsyslogd/5150: #0: 00000000309b71be (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe8/0x100 fs/file.c:801 2 locks held by getty/5240: #0: 00000000489e5b74 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000069e70054 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5241: #0: 00000000de7cd03b (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000006a1a8ee8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5242: #0: 00000000610ea484 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000ff675cf6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5243: #0: 00000000da2fb5d2 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000054c2174f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5244: #0: 000000006e8c314a (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000002c25bda2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5245: #0: 0000000085b3c53d (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000407ca73e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5246: #0: 00000000be466d2c (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000db1f912c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.3/5300: #0: 000000007b809c6e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1168 [inline] #0: 000000007b809c6e (&rq->lock){-.-.}, at: __schedule+0x1ed/0x1d00 kernel/sched/core.c:3456 3 locks held by kworker/0:4/5342: 5 locks held by kworker/1:4/5369: #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 00000000b1db3ed8 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 usb 5-1: Using ep0 maxpacket: 8 #2: 00000000fc8b25b2 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000fc8b25b2 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 000000001206381b (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2994 [inline] #3: 000000001206381b (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5020 [inline] #3: 000000001206381b (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] #3: 000000001206381b (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5350 [inline] #3: 000000001206381b (&port_dev->status_lock){+.+.}, at: hub_event+0x11a3/0x3b00 drivers/usb/core/hub.c:5432 #4: 00000000574c4171 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1bb/0x2d30 drivers/usb/core/hub.c:4529 5 locks held by kworker/1:5/5511: #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 000000009dec07ac ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 00000000359c9499 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000359c9499 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000b99bdf60 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 00000000b99bdf60 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 00000000c1a077eb (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000c1a077eb (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 5 locks held by kworker/1:6/6514: #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000d09d7e92 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 00000000da80f532 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 0000000022d55c9d (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 0000000022d55c9d (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000c3471b52 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 00000000c3471b52 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 usb 5-1: config 0 has an invalid interface number: 242 but max is 0 #4: 00000000e6c6b577 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000e6c6b577 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 usb 5-1: config 0 has no interface number 0 ============================================= usb 5-1: New USB device found, idVendor=b6d8, idProduct=8108, bcdDevice=83.df NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xe8/0x16e lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x48/0x87 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1bd lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0x98e/0xe20 kernel/hung_task.c:288 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 usb 5-1: config 0 descriptor?? Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 5369 Comm: kworker/1:4 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:92 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:113 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:135 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:166 [inline] RIP: 0010:check_memory_region_inline mm/kasan/generic.c:182 [inline] RIP: 0010:check_memory_region+0xd8/0x180 mm/kasan/generic.c:191 Code: 74 f2 48 85 c0 75 5a 5b 5d 41 5c c3 41 bc 08 00 00 00 45 29 c4 49 89 d8 4d 8d 0c 1c eb 0c 49 83 c0 01 4c 89 c8 4d 39 c8 74 0f <41> 80 38 00 74 ee 49 8d 04 1c 4d 85 c0 75 25 49 89 e9 49 29 c1 e9 RSP: 0018:ffff8880ad107c98 EFLAGS: 00000083 RAX: fffffbfff2d802a0 RBX: fffffbfff2d8029c RCX: ffffffff81635a0a RDX: 0000000000000000 RSI: 0000000000000108 RDI: ffffffff96c014e0 RBP: fffffbfff2d802bd R08: fffffbfff2d8029e R09: fffffbfff2d802a0 R10: fffffbfff2d802bc R11: ffffffff96c015e7 R12: 0000000000000004 R13: ffffffff96c014e0 R14: ffffffff9170df40 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f200eb30000 CR3: 000000007b0e2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: memcpy+0x20/0x50 mm/kasan/common.c:132 timekeeping_advance+0x66a/0x990 include/linux/string.h:355 tick_do_update_jiffies64.part.0+0x18c/0x2a0 kernel/time/tick-sched.c:94 tick_do_update_jiffies64 kernel/time/tick-sched.c:63 [inline] tick_sched_do_timer+0x161/0x1a0 kernel/time/tick-sched.c:132 tick_sched_timer+0x2e/0x130 kernel/time/tick-sched.c:1264 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x2d7/0xbd0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x2ed/0x740 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0xdd/0x4a0 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1734 [inline] RIP: 0010:vprintk_emit+0x565/0x5a0 kernel/printk/printk.c:1974 Code: 0f 1f 44 00 00 e9 70 fd ff ff 48 c7 c7 44 98 ca 93 e8 af d7 4d 00 e9 4e fb ff ff e8 f5 c6 16 00 e8 c0 c8 1d 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 0c ff ff ff 48 c7 c7 00 90 60 91 e8 a5 d7 4d 00 RSP: 0018:ffff8880a7d67308 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff11012f77111 RDX: 0000000000000000 RSI: ffff888097bb88b8 RDI: 0000000000000246 RBP: ffff8880a7d67360 R08: ffff888097bb8000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000001e R13: ffff8880a7770000 R14: 0000000000000246 R15: 0000000000000246 dev_vprintk_emit+0x50e/0x553 drivers/base/core.c:3185 dev_printk_emit+0xbf/0xf6 drivers/base/core.c:3196 __dev_printk+0x1ed/0x215 drivers/base/core.c:3208 _dev_warn+0xdc/0x10e drivers/base/core.c:3252 usb_set_configuration.cold+0x16d/0x1bb drivers/usb/core/message.c:1831 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352