BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
in_atomic(): 1, irqs_disabled(): 0, pid: 21, name: kworker/1:1
6 locks held by kworker/1:1/21:
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
 #0: 000000005b903d7f ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
 #1: 00000000f25bba6f ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
 #2: 00000000994805e9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
 #2: 00000000994805e9 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
 #3: 0000000092cde522 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
 #3: 0000000092cde522 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
 #4: 00000000648d877b (console_lock){+.+.}, at: console_trylock_spinning kernel/printk/printk.c:1699 [inline]
 #4: 00000000648d877b (console_lock){+.+.}, at: vprintk_emit+0x298/0x5a0 kernel/printk/printk.c:1974
 #5: 00000000d8186d96 ((&toneport->timer)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:170 [inline]
 #5: 00000000d8186d96 ((&toneport->timer)){+.-.}, at: call_timer_fn+0xce/0x5f0 kernel/time/timer.c:1315
CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.1.0-rc3-319004-g43151d6 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe8/0x16e lib/dump_stack.c:113
 ___might_sleep.cold+0x11c/0x136 kernel/sched/core.c:6190
 __mutex_lock_common kernel/locking/mutex.c:908 [inline]
 __mutex_lock+0xcd/0x12b0 kernel/locking/mutex.c:1072
 line6_pcm_acquire+0x35/0x210 sound/usb/line6/pcm.c:311
 call_timer_fn+0x161/0x5f0 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x58b/0x1400 kernel/time/timer.c:1694
 __do_softirq+0x22a/0x8cd kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:374 [inline]
 irq_exit+0x187/0x1b0 kernel/softirq.c:414
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0xfe/0x4a0 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline]
RIP: 0010:console_unlock+0x9be/0xbb0 kernel/printk/printk.c:2460
Code: ee 48 c7 c7 80 4e 82 91 e8 9f f4 03 00 65 ff 0d 08 31 a7 7e e9 42 fa ff ff e8 de 0d 17 00 e8 a9 0f 1e 00 48 8b 7c 24 30 57 9d <0f> 1f 44 00 00 e9 1f fe ff ff e8 c3 0d 17 00 c7 05 09 92 64 15 00
RSP: 0018:ffff8880a85df280 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff110150ba430
RDX: 0000000000000000 RSI: ffff8880a85d2160 RDI: 0000000000000246
RBP: 0000000000000000 R08: ffff8880a85d1880 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000036
R13: ffffffff86b23c00 R14: 0000000000000001 R15: dffffc0000000000
 vprintk_emit+0x2b5/0x5a0 kernel/printk/printk.c:1975
 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/0x1c0 drivers/usb/core/message.c:1833
 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
==================================================================
BUG: KASAN: null-ptr-deref in memset include/linux/string.h:337 [inline]
BUG: KASAN: null-ptr-deref in submit_audio_out_urb+0x91e/0x1780 sound/usb/line6/playback.c:246
Write of size 20 at addr 0000000000000010 by task kworker/1:1/21

CPU: 1 PID: 21 Comm: kworker/1:1 Tainted: G        W         5.1.0-rc3-319004-g43151d6 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe8/0x16e lib/dump_stack.c:113
 kasan_report.cold+0x5/0x3c mm/kasan/report.c:321
 memset+0x20/0x40 mm/kasan/common.c:115
 memset include/linux/string.h:337 [inline]
 submit_audio_out_urb+0x91e/0x1780 sound/usb/line6/playback.c:246
 line6_submit_audio_out_all_urbs+0xce/0x120 sound/usb/line6/playback.c:295
 line6_stream_start+0x15b/0x1f0 sound/usb/line6/pcm.c:199
 line6_pcm_acquire+0x139/0x210 sound/usb/line6/pcm.c:322
 call_timer_fn+0x161/0x5f0 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x58b/0x1400 kernel/time/timer.c:1694
 __do_softirq+0x22a/0x8cd kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:374 [inline]
 irq_exit+0x187/0x1b0 kernel/softirq.c:414
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0xfe/0x4a0 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline]
RIP: 0010:console_unlock+0x9be/0xbb0 kernel/printk/printk.c:2460
Code: ee 48 c7 c7 80 4e 82 91 e8 9f f4 03 00 65 ff 0d 08 31 a7 7e e9 42 fa ff ff e8 de 0d 17 00 e8 a9 0f 1e 00 48 8b 7c 24 30 57 9d <0f> 1f 44 00 00 e9 1f fe ff ff e8 c3 0d 17 00 c7 05 09 92 64 15 00
RSP: 0018:ffff8880a85df280 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff110150ba430
RDX: 0000000000000000 RSI: ffff8880a85d2160 RDI: 0000000000000246
RBP: 0000000000000000 R08: ffff8880a85d1880 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000036
R13: ffffffff86b23c00 R14: 0000000000000001 R15: dffffc0000000000
 vprintk_emit+0x2b5/0x5a0 kernel/printk/printk.c:1975
 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/0x1c0 drivers/usb/core/message.c:1833
 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
==================================================================