usb 1-1: USB disconnect, device number 27
cdc_ncm 1-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.0-1, CDC NCM (NO ZLP)
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WARNING: CPU: 0 PID: 3699 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 850eefac object type: work_struct hint: usbnet_deferred_kevent+0x0/0x388 drivers/net/usb/usbnet.c:630
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 PID: 3699 Comm: kworker/0:4 Not tainted 6.10.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<818d4178>] (dump_backtrace) from [<818d4274>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe12b8
[<818d425c>] (show_stack) from [<818f189c>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d425c>] (show_stack) from [<818f189c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f1848>] (dump_stack_lvl) from [<818f18dc>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f18c4>] (dump_stack) from [<818d4d1c>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d4bfc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d4bfc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fc9f28 r0:81fd1b78
 r7:80827424
[<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693)
[<80243f44>] (__warn) from [<802442ac>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:726)
 r8:00000009 r7:8202fc68 r6:dfef9a7c r5:84666c00 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80827424>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:850ee800 r8:81a02b44 r7:82058d04 r6:828c3694 r5:dfef9b24
 r4:8260cda8
[<80827360>] (debug_print_object) from [<80828cc4>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<80827360>] (debug_print_object) from [<80828cc4>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:850ef000 r7:850eefac r6:00000100 r5:00000003 r4:00000000
[<80828a70>] (debug_check_no_obj_freed) from [<804bb324>] (slab_free_hook mm/slub.c:2162 [inline])
[<80828a70>] (debug_check_no_obj_freed) from [<804bb324>] (slab_free mm/slub.c:4436 [inline])
[<80828a70>] (debug_check_no_obj_freed) from [<804bb324>] (kfree+0x1a0/0x340 mm/slub.c:4557)
 r10:82778808 r9:83e9d480 r8:850ee800 r7:80461648 r6:82c023c0 r5:ddeaf0a0
 r4:850ee800
[<804bb184>] (kfree) from [<80461648>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82778808 r9:83e9d480 r8:850ee800 r7:00000000 r6:8452d580 r5:85174900
 r4:850ee800
[<8046161c>] (kvfree) from [<81409f2c>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10902)
 r5:85174900 r4:850ee800
[<81409f10>] (netdev_freemem) from [<814457f4>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<814457c8>] (netdev_release) from [<80a60444>] (device_release+0x38/0xa8 drivers/base/core.c:2581)
 r5:85174900 r4:850eebb8
[<80a6040c>] (device_release) from [<818adff4>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a6040c>] (device_release) from [<818adff4>] (kobject_release lib/kobject.c:720 [inline])
[<80a6040c>] (device_release) from [<818adff4>] (kref_put include/linux/kref.h:65 [inline])
[<80a6040c>] (device_release) from [<818adff4>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b4980c r4:850eebb8
[<818adf2c>] (kobject_put) from [<80a60670>] (put_device+0x18/0x1c drivers/base/core.c:3829)
 r7:83e9fc00 r6:850ee90c r5:850ee800 r4:00000000
[<80a60658>] (put_device) from [<813fb0c0>] (free_netdev+0x10c/0x18c net/core/dev.c:11099)
[<813fafb4>] (free_netdev) from [<80d342e8>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:850eef74 r5:850eee60 r4:00000000
[<80d3423c>] (usbnet_disconnect) from [<80d930e8>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:83e9fc30 r6:82778808 r5:00000000 r4:83e9fc00
[<80d93064>] (usb_unbind_interface) from [<80a68534>] (device_remove drivers/base/dd.c:568 [inline])
[<80d93064>] (usb_unbind_interface) from [<80a68534>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:00000000 r9:83e9d480 r8:00000044 r7:83e9fc74 r6:82778808 r5:00000000
 r4:83e9fc30
[<80a684d0>] (device_remove) from [<80a69a4c>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a684d0>] (device_remove) from [<80a69a4c>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:83e9fc30
[<80a698c0>] (device_release_driver_internal) from [<80a69ad8>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:83e9d480 r8:82ea9340 r7:82ea9338 r6:82ea930c r5:83e9fc30 r4:82ea9330
[<80a69ac0>] (device_release_driver) from [<80a67bbc>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a67af0>] (bus_remove_device) from [<80a61cd4>] (device_del+0x148/0x38c drivers/base/core.c:3910)
 r9:83e9d480 r8:84666c00 r7:04208060 r6:00000000 r5:83e9fc30 r4:83e9fc74
[<80a61b8c>] (device_del) from [<80d90b40>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:83e9fc00 r7:83e9d400 r6:845dcfc8 r5:00000001
 r4:00000038
[<80d90a64>] (usb_disable_device) from [<80d859a0>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2304)
 r10:00000001 r9:85101200 r8:83e9d4c4 r7:836b3800 r6:83e9d480 r5:83e9d400
 r4:60000013
[<80d858b4>] (usb_disconnect) from [<80d88650>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline])
[<80d858b4>] (usb_disconnect) from [<80d88650>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline])
[<80d858b4>] (usb_disconnect) from [<80d88650>] (port_event drivers/usb/core/hub.c:5821 [inline])
[<80d858b4>] (usb_disconnect) from [<80d88650>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903)
 r10:00000001 r9:00000100 r8:837b5500 r7:83e9d400 r6:836b3000 r5:836b3a10
 r4:00000001
[<80d877d8>] (hub_event) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231)
 r10:82f8a805 r9:84666c00 r8:00800000 r7:dddd00c0 r6:82f8a800 r5:837b5500
 r4:84f9d800
[<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline])
[<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393)
 r10:84666c00 r9:84f9d82c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0
 r4:84f9d800
[<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df9cde90 r8:84fa0440 r7:84f9d800 r6:80267c04 r5:84666c00
 r4:84fa0380
[<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfef9fb0 to 0xdfef9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:84fa0380
Rebooting in 86400 seconds..