------------[ cut here ]------------
WARNING: CPU: 1 PID: 14302 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 8552e7ac 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: 14302 Comm: kworker/1:5 Not tainted 6.9.0-rc4-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<818a18bc>] (dump_backtrace) from [<818a19b8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fcea10
[<818a19a0>] (show_stack) from [<818bf0f0>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818a19a0>] (show_stack) from [<818bf0f0>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818bf09c>] (dump_stack_lvl) from [<818bf130>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285ad18
[<818bf118>] (dump_stack) from [<818a2460>] (panic+0x120/0x358 kernel/panic.c:348)
[<818a2340>] (panic) from [<8024390c>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<818a2340>] (panic) from [<8024390c>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fb773c r0:81fbf2e0
 r7:8080a0d0
[<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 r7:8201b320 r6:dfce5a7c r5:84742400 r4:00000000
[<80243c08>] (warn_slowpath_fmt) from [<8080a0d0>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:8552e000 r8:81a02b44 r7:82043274 r6:828be454 r5:dfce5b24
 r4:8260ce18
[<8080a00c>] (debug_print_object) from [<8080b968>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<8080a00c>] (debug_print_object) from [<8080b968>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:8552e800 r7:8552e7ac r6:00000100 r5:00000003 r4:00000000
[<8080b714>] (debug_check_no_obj_freed) from [<804b2820>] (slab_free_hook mm/slub.c:2078 [inline])
[<8080b714>] (debug_check_no_obj_freed) from [<804b2820>] (slab_free mm/slub.c:4280 [inline])
[<8080b714>] (debug_check_no_obj_freed) from [<804b2820>] (kfree+0x1a0/0x334 mm/slub.c:4390)
 r10:82775a38 r9:84c55480 r8:8552e000 r7:8045a920 r6:82c023c0 r5:ddeb89a0
 r4:8552e000
[<804b2680>] (kfree) from [<8045a920>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82775a38 r9:84c55480 r8:8552e000 r7:00000000 r6:8abab300 r5:85500400
 r4:8552e000
[<8045a8f4>] (kvfree) from [<813dbb0c>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10797)
 r5:85500400 r4:8552e000
[<813dbaf0>] (netdev_freemem) from [<81416b74>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<81416b48>] (netdev_release) from [<80a404e0>] (device_release+0x38/0xa8 drivers/base/core.c:2580)
 r5:85500400 r4:8552e3b8
[<80a404a8>] (device_release) from [<8187b820>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a404a8>] (device_release) from [<8187b820>] (kobject_release lib/kobject.c:720 [inline])
[<80a404a8>] (device_release) from [<8187b820>] (kref_put include/linux/kref.h:65 [inline])
[<80a404a8>] (device_release) from [<8187b820>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b489c4 r4:8552e3b8
[<8187b758>] (kobject_put) from [<80a40768>] (put_device+0x18/0x1c drivers/base/core.c:3828)
 r7:84c54c00 r6:8552e10c r5:8552e000 r4:00000000
[<80a40750>] (put_device) from [<813cce58>] (free_netdev+0x108/0x188 net/core/dev.c:10993)
[<813ccd50>] (free_netdev) from [<80d10be0>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:8552e774 r5:8552e660 r4:00000000
[<80d10b34>] (usbnet_disconnect) from [<80d6bcc4>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:84c54c30 r6:82775a38 r5:00000000 r4:84c54c00
[<80d6bc40>] (usb_unbind_interface) from [<80a485bc>] (device_remove drivers/base/dd.c:568 [inline])
[<80d6bc40>] (usb_unbind_interface) from [<80a485bc>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:84c55480 r9:828eecf4 r8:00000044 r7:84c54c74 r6:82775a38 r5:00000000
 r4:84c54c30
[<80a48558>] (device_remove) from [<80a49ad4>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a48558>] (device_remove) from [<80a49ad4>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:84c54c30
[<80a49948>] (device_release_driver_internal) from [<80a49b60>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:828eecf4 r8:82f52b40 r7:82f52b38 r6:82f52b0c r5:84c54c30 r4:82f52b30
[<80a49b48>] (device_release_driver) from [<80a47c60>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a47b94>] (bus_remove_device) from [<80a41ce4>] (device_del+0x15c/0x3bc drivers/base/core.c:3909)
 r9:828eecf4 r8:84c54c00 r7:84742400 r6:8ababd88 r5:04208060 r4:84c54c30
[<80a41b88>] (device_del) from [<80d69720>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:84c54c00 r7:84c55400 r6:8ababd88 r5:00000001
 r4:00000038
[<80d69644>] (usb_disable_device) from [<80d5e58c>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2305)
 r10:00000001 r9:84cc4a00 r8:84c554c4 r7:8342a000 r6:84c55480 r5:84c55400
 r4:60000013
[<80d5e4a0>] (usb_disconnect) from [<80d6123c>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline])
[<80d5e4a0>] (usb_disconnect) from [<80d6123c>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline])
[<80d5e4a0>] (usb_disconnect) from [<80d6123c>] (port_event drivers/usb/core/hub.c:5821 [inline])
[<80d5e4a0>] (usb_disconnect) from [<80d6123c>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903)
 r10:00000001 r9:00000100 r8:8384a300 r7:84c55400 r6:83429800 r5:8342a210
 r4:00000001
[<80d603c4>] (hub_event) from [<8026660c>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254)
 r10:82e65a05 r9:84742400 r8:00000180 r7:ddde40c0 r6:82e65a00 r5:8384a300
 r4:865ed100
[<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)
 r10:84742400 r9:865ed12c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0
 r4:865ed100
[<80267144>] (worker_thread) from [<80270044>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:df835e90 r8:86409940 r7:865ed100 r6:80267144 r5:84742400
 r4:864fcac0
[<8026ff40>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfce5fb0 to 0xdfce5ff8)
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 r4:864fcac0
Rebooting in 86400 seconds..