------------[ cut here ]------------
WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x62c/0x63c drivers/usb/core/urb.c:379, CPU#1: kworker/u8:8/3751
URB 860f2d80 submitted while active
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 3751 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: frame pointer underflow
[<80201998>] (dump_backtrace) from [<80201a8c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:82a20f78 r6:00000000 r5:82333084 r4:00000001
[<80201a74>] (show_stack) from [<8021e5fc>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201a74>] (show_stack) from [<8021e5fc>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e5a0>] (dump_stack_lvl) from [<8021e628>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:82a20f78 r6:00000000 r5:849e1880 r4:82c83d40
[<8021e610>] (dump_stack) from [<80202590>] (vpanic+0x114/0x320 kernel/panic.c:651)
[<8020247c>] (vpanic) from [<802027d0>] (trace_suspend_resume+0x0/0x100 kernel/panic.c:788)
 r7:80f4c084
[<8020279c>] (panic) from [<80250a80>] (check_panic_on_warn kernel/panic.c:525 [inline])
[<8020279c>] (panic) from [<80250a80>] (get_taint+0x0/0x1c kernel/panic.c:520)
 r3:82a0b144 r2:00000001 r1:82318de8 r0:82320744
[<80250a08>] (check_panic_on_warn) from [<80250bfc>] (__warn+0x98/0x1a4 kernel/panic.c:1104)
[<80250b64>] (__warn) from [<80250ef0>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:1144)
 r8:00000009 r7:82425830 r6:df805ca4 r5:849e1880 r4:00000000
[<80250d0c>] (warn_slowpath_fmt) from [<80f4c084>] (usb_submit_urb+0x62c/0x63c drivers/usb/core/urb.c:379)
 r10:860f2d80 r9:81dcbe50 r8:00000000 r7:860f2d80 r6:86022400 r5:00000000
 r4:860f2d80
[<80f4ba58>] (usb_submit_urb) from [<81061cd0>] (keyspan_usa67_send_setup+0x208/0x38c drivers/usb/serial/keyspan.c:2740)
 r10:860f2d80 r9:81dcbe50 r8:00000000 r7:860f2d80 r6:86022400 r5:00000000
 r4:00000020
[<81061ac8>] (keyspan_usa67_send_setup) from [<81061fe4>] (usa67_glocont_callback+0x64/0xa8 drivers/usb/serial/keyspan.c:1454)
 r9:83f91000 r8:864ddf40 r7:00000000 r6:86491680 r5:86022400 r4:860d6900
[<81061f80>] (usa67_glocont_callback) from [<80f482c8>] (__usb_hcd_giveback_urb+0xac/0x134 drivers/usb/core/hcd.c:1657)
 r7:00000000 r6:84123c00 r5:ffffffb9 r4:860f2d80
[<80f4821c>] (__usb_hcd_giveback_urb) from [<80f48420>] (usb_hcd_giveback_urb+0xd0/0xd4 drivers/usb/core/hcd.c:1741)
 r7:83f91000 r6:860f2d80 r5:860f2d80 r4:84123c00
[<80f48350>] (usb_hcd_giveback_urb) from [<810c2104>] (dummy_timer+0x628/0xff4 drivers/usb/gadget/udc/dummy_hcd.c:2019)
 r9:83f91000 r8:864ddf40 r7:83f91000 r6:860f2d80 r5:00000122 r4:84123c00
[<810c1adc>] (dummy_timer) from [<80330fec>] (__run_hrtimer kernel/time/hrtimer.c:2032 [inline])
[<810c1adc>] (dummy_timer) from [<80330fec>] (__hrtimer_run_queues+0x168/0x3a4 kernel/time/hrtimer.c:2096)
 r10:00000015 r9:810c1adc r8:000000c0 r7:00000015 r6:ddddc0c0 r5:ddddc1d0
 r4:84123d68
[<80330e84>] (__hrtimer_run_queues) from [<803312b4>] (hrtimer_run_softirq+0x8c/0xc8 kernel/time/hrtimer.c:2113)
 r10:849e1880 r9:00000000 r8:00000000 r7:00000020 r6:000000f0 r5:20000113
 r4:ddddc0c0
[<80331228>] (hrtimer_run_softirq) from [<8025a0dc>] (handle_softirqs+0x160/0x4e4 kernel/softirq.c:622)
 r9:00000100 r8:00000100 r6:00000009 r5:00000008 r4:82a030a0
[<80259f7c>] (handle_softirqs) from [<8025a5fc>] (__do_softirq kernel/softirq.c:656 [inline])
[<80259f7c>] (handle_softirqs) from [<8025a5fc>] (invoke_softirq kernel/softirq.c:496 [inline])
[<80259f7c>] (handle_softirqs) from [<8025a5fc>] (__irq_exit_rcu+0x150/0x1d0 kernel/softirq.c:735)
 r10:00000000 r9:849e1880 r8:00000000 r7:e0189ef8 r6:824e6bc0 r5:82522070
 r4:849e1880
[<8025a4ac>] (__irq_exit_rcu) from [<8025a934>] (irq_exit+0x10/0x18 kernel/softirq.c:764)
 r5:82522070 r4:828d3e6c
[<8025a924>] (irq_exit) from [<81b5b81c>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:293)
[<81b5b7a0>] (generic_handle_arch_irq) from [<81b284a4>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40)
 r9:849e1880 r8:ffffff9c r7:e0189f2c r6:ffffffff r5:60000013 r4:805a9d50
[<81b28488>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc arch/arm/kernel/entry-armv.S:228)
Exception stack(0xe0189ef8 to 0xe0189f40)
9ee0:                                                       84eafc00 60000013
9f00: 00000000 00000000 863d1600 00000000 85b91d00 833c5a80 ffffff9c 00000000
9f20: 00000000 e0189f6c e0189eb0 e0189f48 81b69aa4 805a9d50 60000013 ffffffff
[<805a9c8c>] (alloc_bprm) from [<805aaef8>] (class_bprm_constructor fs/exec.c:1496 [inline])
[<805a9c8c>] (alloc_bprm) from [<805aaef8>] (kernel_execve+0x3c/0x1a0 fs/exec.c:1889)
 r9:00000000 r8:00000000 r7:82af7464 r6:833c5a80 r5:8640bbc0 r4:00000000
[<805aaebc>] (kernel_execve) from [<8027067c>] (call_usermodehelper_exec_async+0xe8/0x15c kernel/umh.c:109)
 r7:00000000 r6:00000000 r5:8649b080 r4:8390ff00
[<80270594>] (call_usermodehelper_exec_async) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0189fb0 to 0xe0189ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r7:00000000 r6:00000000 r5:80270594 r4:8649b080
Rebooting in 86400 seconds..