dm9601 2-1:0.0 eth1: register 'dm9601' at usb-dummy_hcd.1-1, Davicom DM96xx USB 10/100 Ethernet, 76:aa:d6:2c:21:c5
usb 2-1: USB disconnect, device number 19
dm9601 2-1:0.0 eth1: unregister 'dm9601' usb-dummy_hcd.1-1, Davicom DM96xx USB 10/100 Ethernet
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5098 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 8448d7ac 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: 1 PID: 5098 Comm: kworker/1:7 Not tainted 6.9.0-rc1-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<8187943c>] (dump_backtrace) from [<81879538>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fc474c
[<81879520>] (show_stack) from [<81896cd4>] (__dump_stack lib/dump_stack.c:88 [inline])
[<81879520>] (show_stack) from [<81896cd4>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<81896c80>] (dump_stack_lvl) from [<81896d14>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:82858d18
[<81896cfc>] (dump_stack) from [<81879fe0>] (panic+0x120/0x358 kernel/panic.c:348)
[<81879ec0>] (panic) from [<8024390c>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<81879ec0>] (panic) from [<8024390c>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fad3d0 r0:81fb4f78
 r7:8080ba30
[<80243898>] (check_panic_on_warn) from [<80243b00>] (__warn+0x7c/0x180 kernel/panic.c:694)
[<80243a84>] (__warn) from [<80243dec>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:727)
 r8:00000009 r7:82011370 r6:dfaf5a7c r5:847d3c00 r4:00000000
[<80243c08>] (warn_slowpath_fmt) from [<8080ba30>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:8448d000 r8:81a02b44 r7:82039278 r6:828bc414 r5:dfaf5b24
 r4:8260ce18
[<8080b96c>] (debug_print_object) from [<8080d2c8>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<8080b96c>] (debug_print_object) from [<8080d2c8>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:8448d800 r7:8448d7ac r6:00000100 r5:00000003 r4:00000000
[<8080d074>] (debug_check_no_obj_freed) from [<804b26a0>] (slab_free_hook mm/slub.c:2078 [inline])
[<8080d074>] (debug_check_no_obj_freed) from [<804b26a0>] (slab_free mm/slub.c:4280 [inline])
[<8080d074>] (debug_check_no_obj_freed) from [<804b26a0>] (kfree+0x1a0/0x334 mm/slub.c:4390)
 r10:82775118 r9:8550c080 r8:8448d000 r7:8045a848 r6:82c023c0 r5:dde93320
 r4:8448d000
[<804b2500>] (kfree) from [<8045a848>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82775118 r9:8550c080 r8:8448d000 r7:00000000 r6:8440b140 r5:84eed480
 r4:8448d000
[<8045a81c>] (kvfree) from [<813b38fc>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10797)
 r5:84eed480 r4:8448d000
[<813b38e0>] (netdev_freemem) from [<813ee95c>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<813ee930>] (netdev_release) from [<80a41c98>] (device_release+0x38/0xa8 drivers/base/core.c:2565)
 r5:84eed480 r4:8448d3b8
[<80a41c60>] (device_release) from [<818533a0>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a41c60>] (device_release) from [<818533a0>] (kobject_release lib/kobject.c:720 [inline])
[<80a41c60>] (device_release) from [<818533a0>] (kref_put include/linux/kref.h:65 [inline])
[<80a41c60>] (device_release) from [<818533a0>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b485c4 r4:8448d3b8
[<818532d8>] (kobject_put) from [<80a41f20>] (put_device+0x18/0x1c drivers/base/core.c:3813)
 r7:8550d400 r6:8448d10c r5:8448d000 r4:00000000
[<80a41f08>] (put_device) from [<813a4c48>] (free_netdev+0x108/0x188 net/core/dev.c:10993)
[<813a4b40>] (free_netdev) from [<80d11318>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:8448d774 r5:8448d660 r4:00000000
[<80d1126c>] (usbnet_disconnect) from [<80d6c290>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:8550d430 r6:82775118 r5:00000000 r4:8550d400
[<80d6c20c>] (usb_unbind_interface) from [<80a49d74>] (device_remove drivers/base/dd.c:568 [inline])
[<80d6c20c>] (usb_unbind_interface) from [<80a49d74>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:8550c080 r9:828eccc4 r8:00000044 r7:8550d474 r6:82775118 r5:00000000
 r4:8550d430
[<80a49d10>] (device_remove) from [<80a4b28c>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a49d10>] (device_remove) from [<80a4b28c>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:8550d430
[<80a4b100>] (device_release_driver_internal) from [<80a4b318>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:828eccc4 r8:82ecef40 r7:82ecef38 r6:82ecef0c r5:8550d430 r4:82ecef30
[<80a4b300>] (device_release_driver) from [<80a49418>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a4934c>] (bus_remove_device) from [<80a4349c>] (device_del+0x15c/0x3bc drivers/base/core.c:3894)
 r9:828eccc4 r8:8550d400 r7:847d3c00 r6:85226308 r5:04208060 r4:8550d430
[<80a43340>] (device_del) from [<80d69cec>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:8550d400 r7:8550c000 r6:85226308 r5:00000002
 r4:00000070
[<80d69c10>] (usb_disable_device) from [<80d5eb58>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2296)
 r10:00000001 r9:84df8200 r8:8550c0c4 r7:83609000 r6:8550c080 r5:8550c000
 r4:60000013
[<80d5ea6c>] (usb_disconnect) from [<80d61808>] (hub_port_connect drivers/usb/core/hub.c:5352 [inline])
[<80d5ea6c>] (usb_disconnect) from [<80d61808>] (hub_port_connect_change drivers/usb/core/hub.c:5652 [inline])
[<80d5ea6c>] (usb_disconnect) from [<80d61808>] (port_event drivers/usb/core/hub.c:5812 [inline])
[<80d5ea6c>] (usb_disconnect) from [<80d61808>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5894)
 r10:00000001 r9:00000100 r8:83a0f900 r7:8550c000 r6:83608800 r5:83609210
 r4:00000001
[<80d60990>] (hub_event) from [<8026660c>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254)
 r10:82fd2005 r9:847d3c00 r8:00000180 r7:ddde40c0 r6:82fd2000 r5:83a0f900
 r4:8515b280
[<80266454>] (process_one_work) from [<80267330>] (process_scheduled_works kernel/workqueue.c:3335 [inline])
[<80266454>] (process_one_work) from [<80267330>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416)
 r10:847d3c00 r9:8515b2ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0
 r4:8515b280
[<80267144>] (worker_thread) from [<80270044>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:df879e90 r8:85190400 r7:8515b280 r6:80267144 r5:847d3c00
 r4:85190700
[<8026ff40>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfaf5fb0 to 0xdfaf5ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff40 r4:85190700
Rebooting in 86400 seconds..