------------[ cut here ]------------
WARNING: CPU: 0 PID: 31079 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 84db1fac 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: 31079 Comm: kworker/0:3 Not tainted 6.8.0-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<81878d5c>] (dump_backtrace) from [<81878e58>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fc4708
[<81878e40>] (show_stack) from [<818965f4>] (__dump_stack lib/dump_stack.c:88 [inline])
[<81878e40>] (show_stack) from [<818965f4>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818965a0>] (dump_stack_lvl) from [<81896634>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:82858d18
[<8189661c>] (dump_stack) from [<81879900>] (panic+0x120/0x358 kernel/panic.c:348)
[<818797e0>] (panic) from [<8024390c>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<818797e0>] (panic) from [<8024390c>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fad390 r0:81fb4f38
 r7:8080b710
[<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 r7:820112d8 r6:dfb61a7c r5:83e80c00 r4:00000000
[<80243c08>] (warn_slowpath_fmt) from [<8080b710>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:84db1800 r8:81a02b44 r7:820391e0 r6:828bc414 r5:dfb61b24
 r4:8260ce18
[<8080b64c>] (debug_print_object) from [<8080cfa8>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<8080b64c>] (debug_print_object) from [<8080cfa8>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:84db2000 r7:84db1fac r6:00000100 r5:00000003 r4:00000000
[<8080cd54>] (debug_check_no_obj_freed) from [<804b2640>] (slab_free_hook mm/slub.c:2078 [inline])
[<8080cd54>] (debug_check_no_obj_freed) from [<804b2640>] (slab_free mm/slub.c:4280 [inline])
[<8080cd54>] (debug_check_no_obj_freed) from [<804b2640>] (kfree+0x1a0/0x334 mm/slub.c:4390)
 r10:82775a30 r9:8888d480 r8:84db1800 r7:8045a79c r6:82c023c0 r5:ddea7cc0
 r4:84db1800
[<804b24a0>] (kfree) from [<8045a79c>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82775a30 r9:8888d480 r8:84db1800 r7:00000000 r6:84cf2f40 r5:853aba00
 r4:84db1800
[<8045a770>] (kvfree) from [<813b358c>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10797)
 r5:853aba00 r4:84db1800
[<813b3570>] (netdev_freemem) from [<813ee5ec>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<813ee5c0>] (netdev_release) from [<80a41930>] (device_release+0x38/0xa8 drivers/base/core.c:2565)
 r5:853aba00 r4:84db1bb8
[<80a418f8>] (device_release) from [<81852cc0>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a418f8>] (device_release) from [<81852cc0>] (kobject_release lib/kobject.c:720 [inline])
[<80a418f8>] (device_release) from [<81852cc0>] (kref_put include/linux/kref.h:65 [inline])
[<80a418f8>] (device_release) from [<81852cc0>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b48594 r4:84db1bb8
[<81852bf8>] (kobject_put) from [<80a41bb8>] (put_device+0x18/0x1c drivers/base/core.c:3813)
 r7:8888e800 r6:84db190c r5:84db1800 r4:00000000
[<80a41ba0>] (put_device) from [<813a48d8>] (free_netdev+0x108/0x188 net/core/dev.c:10993)
[<813a47d0>] (free_netdev) from [<80d10fb0>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:84db1f74 r5:84db1e60 r4:00000000
[<80d10f04>] (usbnet_disconnect) from [<80d6bf28>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:8888e830 r6:82775a30 r5:00000000 r4:8888e800
[<80d6bea4>] (usb_unbind_interface) from [<80a49a0c>] (device_remove drivers/base/dd.c:568 [inline])
[<80d6bea4>] (usb_unbind_interface) from [<80a49a0c>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:8888d480 r9:828eccc4 r8:00000044 r7:8888e874 r6:82775a30 r5:00000000
 r4:8888e830
[<80a499a8>] (device_remove) from [<80a4af24>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a499a8>] (device_remove) from [<80a4af24>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:8888e830
[<80a4ad98>] (device_release_driver_internal) from [<80a4afb0>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:828eccc4 r8:82f52940 r7:82f52938 r6:82f5290c r5:8888e830 r4:82f52930
[<80a4af98>] (device_release_driver) from [<80a490b0>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a48fe4>] (bus_remove_device) from [<80a43134>] (device_del+0x15c/0x3bc drivers/base/core.c:3894)
 r9:828eccc4 r8:8888e800 r7:83e80c00 r6:85004888 r5:04208060 r4:8888e830
[<80a42fd8>] (device_del) from [<80d69984>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:8888e800 r7:8888d400 r6:85004888 r5:00000001
 r4:00000038
[<80d698a8>] (usb_disable_device) from [<80d5e7f0>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2296)
 r10:00000001 r9:856c2200 r8:8888d4c4 r7:8390d000 r6:8888d480 r5:8888d400
 r4:60000013
[<80d5e704>] (usb_disconnect) from [<80d614a0>] (hub_port_connect drivers/usb/core/hub.c:5352 [inline])
[<80d5e704>] (usb_disconnect) from [<80d614a0>] (hub_port_connect_change drivers/usb/core/hub.c:5652 [inline])
[<80d5e704>] (usb_disconnect) from [<80d614a0>] (port_event drivers/usb/core/hub.c:5812 [inline])
[<80d5e704>] (usb_disconnect) from [<80d614a0>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5894)
 r10:00000001 r9:00000100 r8:83772f00 r7:8888d400 r6:8390c800 r5:8390d210
 r4:00000001
[<80d60628>] (hub_event) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254)
 r10:82e65405 r9:83e80c00 r8:00000080 r7:dddcff00 r6:82e65400 r5:83772f00
 r4:84dac800
[<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline])
[<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416)
 r10:83e80c00 r9:84dac82c r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00
 r4:84dac800
[<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:eb8bde90 r8:84596f40 r7:84dac800 r6:80267134 r5:83e80c00
 r4:845965c0
[<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfb61fb0 to 0xdfb61ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff30 r4:845965c0
Rebooting in 86400 seconds..