cdc_ncm 2-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.1-1, CDC NCM (NO ZLP)
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WARNING: CPU: 0 PID: 9018 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 84767fac 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: 9018 Comm: kworker/0:1 Not tainted 6.10.0-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<818d6238>] (dump_backtrace) from [<818d6334>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe205c
[<818d631c>] (show_stack) from [<818f399c>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d631c>] (show_stack) from [<818f399c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f3948>] (dump_stack_lvl) from [<818f39dc>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f39c4>] (dump_stack) from [<818d6ddc>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d6cbc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d6cbc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fcaccc r0:81fd2924
 r7:80828664
[<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 r7:82031308 r6:ec65da7c r5:8473e000 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80828664>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:84767800 r8:81a02b44 r7:8205a408 r6:828c3454 r5:ec65db24
 r4:8260cda8
[<808285a0>] (debug_print_object) from [<80829f04>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<808285a0>] (debug_print_object) from [<80829f04>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:84768000 r7:84767fac r6:00000100 r5:00000003 r4:00000000
[<80829cb0>] (debug_check_no_obj_freed) from [<804bb428>] (slab_free_hook mm/slub.c:2163 [inline])
[<80829cb0>] (debug_check_no_obj_freed) from [<804bb428>] (slab_free mm/slub.c:4438 [inline])
[<80829cb0>] (debug_check_no_obj_freed) from [<804bb428>] (kfree+0x1a0/0x340 mm/slub.c:4559)
 r10:82778808 r9:8522d880 r8:84767800 r7:80461560 r6:82c023c0 r5:dde99980
 r4:84767800
[<804bb288>] (kfree) from [<80461560>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82778808 r9:8522d880 r8:84767800 r7:00000000 r6:856b3100 r5:85120880
 r4:84767800
[<80461534>] (kvfree) from [<8140bd68>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10903)
 r5:85120880 r4:84767800
[<8140bd4c>] (netdev_freemem) from [<81447748>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<8144771c>] (netdev_release) from [<80a61544>] (device_release+0x38/0xa8 drivers/base/core.c:2581)
 r5:85120880 r4:84767bb8
[<80a6150c>] (device_release) from [<818b00b4>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a6150c>] (device_release) from [<818b00b4>] (kobject_release lib/kobject.c:720 [inline])
[<80a6150c>] (device_release) from [<818b00b4>] (kref_put include/linux/kref.h:65 [inline])
[<80a6150c>] (device_release) from [<818b00b4>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b49adc r4:84767bb8
[<818affec>] (kobject_put) from [<80a61770>] (put_device+0x18/0x1c drivers/base/core.c:3787)
 r7:8522fc00 r6:8476790c r5:84767800 r4:00000000
[<80a61758>] (put_device) from [<813fcefc>] (free_netdev+0x10c/0x18c net/core/dev.c:11100)
[<813fcdf0>] (free_netdev) from [<80d35940>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:84767f74 r5:84767e60 r4:00000000
[<80d35894>] (usbnet_disconnect) from [<80d94a20>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:8522fc30 r6:82778808 r5:00000000 r4:8522fc00
[<80d9499c>] (usb_unbind_interface) from [<80a6964c>] (device_remove drivers/base/dd.c:568 [inline])
[<80d9499c>] (usb_unbind_interface) from [<80a6964c>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:00000000 r9:8522d880 r8:00000044 r7:8522fc74 r6:82778808 r5:00000000
 r4:8522fc30
[<80a695e8>] (device_remove) from [<80a6ab64>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a695e8>] (device_remove) from [<80a6ab64>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:8522fc30
[<80a6a9d8>] (device_release_driver_internal) from [<80a6abf0>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:8522d880 r8:82ed1f40 r7:82ed1f38 r6:82ed1f0c r5:8522fc30 r4:82ed1f30
[<80a6abd8>] (device_release_driver) from [<80a68cd4>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a68c08>] (bus_remove_device) from [<80a62dec>] (device_del+0x148/0x38c drivers/base/core.c:3868)
 r9:8522d880 r8:8473e000 r7:04208060 r6:00000000 r5:8522fc30 r4:8522fc74
[<80a62ca4>] (device_del) from [<80d92478>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:8522fc00 r7:8522d800 r6:852977c8 r5:00000001
 r4:00000038
[<80d9239c>] (usb_disable_device) from [<80d872d8>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2304)
 r10:00000001 r9:84a8f000 r8:8522d8c4 r7:8357a000 r6:8522d880 r5:8522d800
 r4:60000013
[<80d871ec>] (usb_disconnect) from [<80d89f88>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline])
[<80d871ec>] (usb_disconnect) from [<80d89f88>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline])
[<80d871ec>] (usb_disconnect) from [<80d89f88>] (port_event drivers/usb/core/hub.c:5821 [inline])
[<80d871ec>] (usb_disconnect) from [<80d89f88>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903)
 r10:00000001 r9:00000100 r8:83d4b500 r7:8522d800 r6:83579800 r5:8357a210
 r4:00000001
[<80d89110>] (hub_event) from [<80267258>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3248)
 r10:82fd0205 r9:8473e000 r8:00800000 r7:dddd00c0 r6:82fd0200 r5:83d4b500
 r4:8449fa00
[<802670a4>] (process_one_work) from [<80267e80>] (process_scheduled_works kernel/workqueue.c:3329 [inline])
[<802670a4>] (process_one_work) from [<80267e80>] (worker_thread+0x1ec/0x404 kernel/workqueue.c:3409)
 r10:8473e000 r9:8449fa2c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0
 r4:8449fa00
[<80267c94>] (worker_thread) from [<802712c0>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df839e78 r8:84ad5580 r7:8449fa00 r6:80267c94 r5:8473e000
 r4:84ad5400
[<802711bc>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134)
Exception stack(0xec65dfb0 to 0xec65dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802711bc r4:84ad5400
Rebooting in 86400 seconds..