------------[ cut here ]------------
WARNING: CPU: 1 PID: 4288 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 84e7b7ac 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: 4288 Comm: kworker/1:6 Not tainted 6.9.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<818a225c>] (dump_backtrace) from [<818a2358>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fcee54
[<818a2340>] (show_stack) from [<818bfa94>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818a2340>] (show_stack) from [<818bfa94>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818bfa40>] (dump_stack_lvl) from [<818bfad4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285ad18
[<818bfabc>] (dump_stack) from [<818a2e00>] (panic+0x120/0x358 kernel/panic.c:348)
[<818a2ce0>] (panic) from [<802438ec>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<818a2ce0>] (panic) from [<802438ec>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fb7b80 r0:81fbf724
 r7:8080a430
[<80243878>] (check_panic_on_warn) from [<80243ae0>] (__warn+0x7c/0x180 kernel/panic.c:694)
[<80243a64>] (__warn) from [<80243dcc>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:727)
 r8:00000009 r7:8201b764 r6:dfb15a7c r5:83798000 r4:00000000
[<80243be8>] (warn_slowpath_fmt) from [<8080a430>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:84e7b000 r8:81a02b44 r7:820436ec r6:828be454 r5:dfb15b24
 r4:8260ce18
[<8080a36c>] (debug_print_object) from [<8080bcc8>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<8080a36c>] (debug_print_object) from [<8080bcc8>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:84e7b800 r7:84e7b7ac r6:00000100 r5:00000003 r4:00000000
[<8080ba74>] (debug_check_no_obj_freed) from [<804b2c24>] (slab_free_hook mm/slub.c:2078 [inline])
[<8080ba74>] (debug_check_no_obj_freed) from [<804b2c24>] (slab_free mm/slub.c:4280 [inline])
[<8080ba74>] (debug_check_no_obj_freed) from [<804b2c24>] (kfree+0x1a0/0x334 mm/slub.c:4390)
 r10:82775a48 r9:8512c880 r8:84e7b000 r7:8045a8ec r6:82c023c0 r5:ddea98e0
 r4:84e7b000
[<804b2a84>] (kfree) from [<8045a8ec>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82775a48 r9:8512c880 r8:84e7b000 r7:00000000 r6:85380780 r5:84f14500
 r4:84e7b000
[<8045a8c0>] (kvfree) from [<813dc460>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10803)
 r5:84f14500 r4:84e7b000
[<813dc444>] (netdev_freemem) from [<814174cc>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<814174a0>] (netdev_release) from [<80a40ad0>] (device_release+0x38/0xa8 drivers/base/core.c:2580)
 r5:84f14500 r4:84e7b3b8
[<80a40a98>] (device_release) from [<8187c1c0>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a40a98>] (device_release) from [<8187c1c0>] (kobject_release lib/kobject.c:720 [inline])
[<80a40a98>] (device_release) from [<8187c1c0>] (kref_put include/linux/kref.h:65 [inline])
[<80a40a98>] (device_release) from [<8187c1c0>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b48984 r4:84e7b3b8
[<8187c0f8>] (kobject_put) from [<80a40d58>] (put_device+0x18/0x1c drivers/base/core.c:3828)
 r7:8512d400 r6:84e7b10c r5:84e7b000 r4:00000000
[<80a40d40>] (put_device) from [<813cd748>] (free_netdev+0x108/0x188 net/core/dev.c:10999)
[<813cd640>] (free_netdev) from [<80d114e0>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:84e7b774 r5:84e7b660 r4:00000000
[<80d11434>] (usbnet_disconnect) from [<80d6c5c4>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:8512d430 r6:82775a48 r5:00000000 r4:8512d400
[<80d6c540>] (usb_unbind_interface) from [<80a48bac>] (device_remove drivers/base/dd.c:568 [inline])
[<80d6c540>] (usb_unbind_interface) from [<80a48bac>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:8512c880 r9:828eecfc r8:00000044 r7:8512d474 r6:82775a48 r5:00000000
 r4:8512d430
[<80a48b48>] (device_remove) from [<80a4a0c4>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a48b48>] (device_remove) from [<80a4a0c4>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:8512d430
[<80a49f38>] (device_release_driver_internal) from [<80a4a150>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:828eecfc r8:82f51b40 r7:82f51b38 r6:82f51b0c r5:8512d430 r4:82f51b30
[<80a4a138>] (device_release_driver) from [<80a48250>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a48184>] (bus_remove_device) from [<80a422d4>] (device_del+0x15c/0x3bc drivers/base/core.c:3909)
 r9:828eecfc r8:8512d400 r7:83798000 r6:8523b4c8 r5:04208060 r4:8512d430
[<80a42178>] (device_del) from [<80d6a020>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:8512d400 r7:8512c800 r6:8523b4c8 r5:00000001
 r4:00000038
[<80d69f44>] (usb_disable_device) from [<80d5ee8c>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2305)
 r10:00000001 r9:853ff600 r8:8512c8c4 r7:83421000 r6:8512c880 r5:8512c800
 r4:60000013
[<80d5eda0>] (usb_disconnect) from [<80d61b3c>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline])
[<80d5eda0>] (usb_disconnect) from [<80d61b3c>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline])
[<80d5eda0>] (usb_disconnect) from [<80d61b3c>] (port_event drivers/usb/core/hub.c:5821 [inline])
[<80d5eda0>] (usb_disconnect) from [<80d61b3c>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903)
 r10:00000001 r9:00000100 r8:8389c700 r7:8512c800 r6:83420800 r5:83421210
 r4:00000001
[<80d60cc4>] (hub_event) from [<802665ec>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254)
 r10:82e65a05 r9:83798000 r8:00000180 r7:ddde40c0 r6:82e65a00 r5:8389c700
 r4:8470b480
[<80266434>] (process_one_work) from [<80267310>] (process_scheduled_works kernel/workqueue.c:3335 [inline])
[<80266434>] (process_one_work) from [<80267310>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416)
 r10:83798000 r9:8470b4ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0
 r4:8470b480
[<80267124>] (worker_thread) from [<80270024>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:df925e90 r8:84ff1340 r7:8470b480 r6:80267124 r5:83798000
 r4:84ff12c0
[<8026ff20>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfb15fb0 to 0xdfb15ff8)
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 r5:8026ff20 r4:84ff12c0
Rebooting in 86400 seconds..