cdc_ncm 2-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.1-1, CDC NCM (NO ZLP)
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WARNING: CPU: 0 PID: 9153 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514
ODEBUG: free active (active state 0) object: 8534d7ac 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: 9153 Comm: kworker/0:8 Not tainted 6.9.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<81879f7c>] (dump_backtrace) from [<8187a078>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fc4838
[<8187a060>] (show_stack) from [<81897814>] (__dump_stack lib/dump_stack.c:88 [inline])
[<8187a060>] (show_stack) from [<81897814>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818977c0>] (dump_stack_lvl) from [<81897854>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:82858d18
[<8189783c>] (dump_stack) from [<8187ab20>] (panic+0x120/0x358 kernel/panic.c:348)
[<8187aa00>] (panic) from [<8024390c>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<8187aa00>] (panic) from [<8024390c>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fad4bc r0:81fb5064
 r7:8080ba48
[<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 r7:8201145c r6:dfd71a7c r5:83e4c800 r4:00000000
[<80243c08>] (warn_slowpath_fmt) from [<8080ba48>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514)
 r10:00000005 r9:8534d000 r8:81a02b44 r7:820393b0 r6:828bc414 r5:dfd71b24
 r4:8260ce18
[<8080b984>] (debug_print_object) from [<8080d2e0>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline])
[<8080b984>] (debug_print_object) from [<8080d2e0>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019)
 r8:8534d800 r7:8534d7ac r6:00000100 r5:00000003 r4:00000000
[<8080d08c>] (debug_check_no_obj_freed) from [<804b26e0>] (slab_free_hook mm/slub.c:2078 [inline])
[<8080d08c>] (debug_check_no_obj_freed) from [<804b26e0>] (slab_free mm/slub.c:4280 [inline])
[<8080d08c>] (debug_check_no_obj_freed) from [<804b26e0>] (kfree+0x1a0/0x334 mm/slub.c:4390)
 r10:82775a08 r9:8426ac80 r8:8534d000 r7:8045a878 r6:82c023c0 r5:ddeb4620
 r4:8534d000
[<804b2540>] (kfree) from [<8045a878>] (kvfree+0x2c/0x30 mm/util.c:680)
 r10:82775a08 r9:8426ac80 r8:8534d000 r7:00000000 r6:851c9140 r5:85021380
 r4:8534d000
[<8045a84c>] (kvfree) from [<813b443c>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10797)
 r5:85021380 r4:8534d000
[<813b4420>] (netdev_freemem) from [<813ef49c>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
[<813ef470>] (netdev_release) from [<80a41db0>] (device_release+0x38/0xa8 drivers/base/core.c:2565)
 r5:85021380 r4:8534d3b8
[<80a41d78>] (device_release) from [<81853ee0>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a41d78>] (device_release) from [<81853ee0>] (kobject_release lib/kobject.c:720 [inline])
[<80a41d78>] (device_release) from [<81853ee0>] (kref_put include/linux/kref.h:65 [inline])
[<80a41d78>] (device_release) from [<81853ee0>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b485c4 r4:8534d3b8
[<81853e18>] (kobject_put) from [<80a42038>] (put_device+0x18/0x1c drivers/base/core.c:3813)
 r7:84268c00 r6:8534d10c r5:8534d000 r4:00000000
[<80a42020>] (put_device) from [<813a5788>] (free_netdev+0x108/0x188 net/core/dev.c:10993)
[<813a5680>] (free_netdev) from [<80d11630>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:8534d774 r5:8534d660 r4:00000000
[<80d11584>] (usbnet_disconnect) from [<80d6c66c>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:84268c30 r6:82775a08 r5:00000000 r4:84268c00
[<80d6c5e8>] (usb_unbind_interface) from [<80a49e8c>] (device_remove drivers/base/dd.c:568 [inline])
[<80d6c5e8>] (usb_unbind_interface) from [<80a49e8c>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:8426ac80 r9:828eccc4 r8:00000044 r7:84268c74 r6:82775a08 r5:00000000
 r4:84268c30
[<80a49e28>] (device_remove) from [<80a4b3a4>] (__device_release_driver drivers/base/dd.c:1270 [inline])
[<80a49e28>] (device_remove) from [<80a4b3a4>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293)
 r5:00000000 r4:84268c30
[<80a4b218>] (device_release_driver_internal) from [<80a4b430>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316)
 r9:828eccc4 r8:82f51a40 r7:82f51a38 r6:82f51a0c r5:84268c30 r4:82f51a30
[<80a4b418>] (device_release_driver) from [<80a49530>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a49464>] (bus_remove_device) from [<80a435b4>] (device_del+0x15c/0x3bc drivers/base/core.c:3894)
 r9:828eccc4 r8:84268c00 r7:83e4c800 r6:84c60808 r5:04208060 r4:84268c30
[<80a43458>] (device_del) from [<80d6a0c8>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:84268c00 r7:8426ac00 r6:84c60808 r5:00000001
 r4:00000038
[<80d69fec>] (usb_disable_device) from [<80d5ef34>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2305)
 r10:00000001 r9:84527400 r8:8426acc4 r7:82fa7000 r6:8426ac80 r5:8426ac00
 r4:60000013
[<80d5ee48>] (usb_disconnect) from [<80d61be4>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline])
[<80d5ee48>] (usb_disconnect) from [<80d61be4>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline])
[<80d5ee48>] (usb_disconnect) from [<80d61be4>] (port_event drivers/usb/core/hub.c:5821 [inline])
[<80d5ee48>] (usb_disconnect) from [<80d61be4>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903)
 r10:00000001 r9:00000100 r8:837fb900 r7:8426ac00 r6:82fa6800 r5:82fa7210
 r4:00000001
[<80d60d6c>] (hub_event) from [<8026660c>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254)
 r10:82e65405 r9:83e4c800 r8:00000080 r7:dddd00c0 r6:82e65400 r5:837fb900
 r4:85322a00
[<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)
 r10:83e4c800 r9:85322a2c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0
 r4:85322a00
[<80267144>] (worker_thread) from [<80270044>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:dfb01e90 r8:851c9c80 r7:85322a00 r6:80267144 r5:83e4c800
 r4:851c9500
[<8026ff40>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfd71fb0 to 0xdfd71ff8)
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 r5:8026ff40 r4:851c9500
Rebooting in 86400 seconds..