------------[ cut here ]------------
WARNING: CPU: 0 PID: 7 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 84eb5fac 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: 7 Comm: kworker/0:0 Not tainted 6.9.0-rc1-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<81878ffc>] (dump_backtrace) from [<818790f8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fc471c
[<818790e0>] (show_stack) from [<81896894>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818790e0>] (show_stack) from [<81896894>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<81896840>] (dump_stack_lvl) from [<818968d4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:82858d18
[<818968bc>] (dump_stack) from [<81879ba0>] (panic+0x120/0x358 kernel/panic.c:348)
[<81879a80>] (panic) from [<8024390c>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<81879a80>] (panic) from [<8024390c>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fad3a0 r0:81fb4f48
 r7:8080b9b0
[<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 r7:820112ec r6:df835a7c r5:82e2c800 r4:00000000
[<80243c08>] (warn_slowpath_fmt) from [<8080b9b0>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:84eb5800 r8:81a02b44 r7:820391f4 r6:828bc414 r5:df835b24
 r4:8260ce18
[<8080b8ec>] (debug_print_object) from [<8080d248>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<8080b8ec>] (debug_print_object) from [<8080d248>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:84eb6000 r7:84eb5fac r6:00000100 r5:00000003 r4:00000000
[<8080cff4>] (debug_check_no_obj_freed) from [<804b2620>] (slab_free_hook mm/slub.c:2078 [inline])
[<8080cff4>] (debug_check_no_obj_freed) from [<804b2620>] (slab_free mm/slub.c:4280 [inline])
[<8080cff4>] (debug_check_no_obj_freed) from [<804b2620>] (kfree+0x1a0/0x334 mm/slub.c:4390)
 r10:82775a30 r9:84d69c80 r8:84eb5800 r7:8045a7c8 r6:82c023c0 r5:ddeaa0c0
 r4:84eb5800
[<804b2480>] (kfree) from [<8045a7c8>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82775a30 r9:84d69c80 r8:84eb5800 r7:00000000 r6:84fbe040 r5:84fb1f80
 r4:84eb5800
[<8045a79c>] (kvfree) from [<813b382c>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10797)
 r5:84fb1f80 r4:84eb5800
[<813b3810>] (netdev_freemem) from [<813ee88c>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<813ee860>] (netdev_release) from [<80a41bd0>] (device_release+0x38/0xa8 drivers/base/core.c:2565)
 r5:84fb1f80 r4:84eb5bb8
[<80a41b98>] (device_release) from [<81852f60>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a41b98>] (device_release) from [<81852f60>] (kobject_release lib/kobject.c:720 [inline])
[<80a41b98>] (device_release) from [<81852f60>] (kref_put include/linux/kref.h:65 [inline])
[<80a41b98>] (device_release) from [<81852f60>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b485c4 r4:84eb5bb8
[<81852e98>] (kobject_put) from [<80a41e58>] (put_device+0x18/0x1c drivers/base/core.c:3813)
 r7:84d6b800 r6:84eb590c r5:84eb5800 r4:00000000
[<80a41e40>] (put_device) from [<813a4b78>] (free_netdev+0x108/0x188 net/core/dev.c:10993)
[<813a4a70>] (free_netdev) from [<80d11250>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:84eb5f74 r5:84eb5e60 r4:00000000
[<80d111a4>] (usbnet_disconnect) from [<80d6c1c8>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:84d6b830 r6:82775a30 r5:00000000 r4:84d6b800
[<80d6c144>] (usb_unbind_interface) from [<80a49cac>] (device_remove drivers/base/dd.c:568 [inline])
[<80d6c144>] (usb_unbind_interface) from [<80a49cac>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:84d69c80 r9:828eccc4 r8:00000044 r7:84d6b874 r6:82775a30 r5:00000000
 r4:84d6b830
[<80a49c48>] (device_remove) from [<80a4b1c4>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a49c48>] (device_remove) from [<80a4b1c4>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:84d6b830
[<80a4b038>] (device_release_driver_internal) from [<80a4b250>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:828eccc4 r8:82ecee40 r7:82ecee38 r6:82ecee0c r5:84d6b830 r4:82ecee30
[<80a4b238>] (device_release_driver) from [<80a49350>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a49284>] (bus_remove_device) from [<80a433d4>] (device_del+0x15c/0x3bc drivers/base/core.c:3894)
 r9:828eccc4 r8:84d6b800 r7:82e2c800 r6:84fb2a88 r5:04208060 r4:84d6b830
[<80a43278>] (device_del) from [<80d69c24>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:84d6b800 r7:84d69c00 r6:84fb2a88 r5:00000001
 r4:00000038
[<80d69b48>] (usb_disable_device) from [<80d5ea90>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2296)
 r10:00000001 r9:8456e200 r8:84d69cc4 r7:83dad400 r6:84d69c80 r5:84d69c00
 r4:60000013
[<80d5e9a4>] (usb_disconnect) from [<80d61740>] (hub_port_connect drivers/usb/core/hub.c:5352 [inline])
[<80d5e9a4>] (usb_disconnect) from [<80d61740>] (hub_port_connect_change drivers/usb/core/hub.c:5652 [inline])
[<80d5e9a4>] (usb_disconnect) from [<80d61740>] (port_event drivers/usb/core/hub.c:5812 [inline])
[<80d5e9a4>] (usb_disconnect) from [<80d61740>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5894)
 r10:00000001 r9:00000100 r8:83b48900 r7:84d69c00 r6:83dacc00 r5:83dad610
 r4:00000001
[<80d608c8>] (hub_event) from [<8026660c>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254)
 r10:82fd2405 r9:82e2c800 r8:00000080 r7:dddd00c0 r6:82fd2400 r5:83b48900
 r4:82c0be80
[<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)
 r10:82e2c800 r9:82c0beac r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0
 r4:82c0be80
[<80267144>] (worker_thread) from [<80270044>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:df819e60 r8:82cad740 r7:82c0be80 r6:80267144 r5:82e2c800
 r4:82cad140
[<8026ff40>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdf835fb0 to 0xdf835ff8)
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 r4:82cad140
Rebooting in 86400 seconds..