cdc_ncm 1-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.0-1, CDC NCM (NO ZLP)
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WARNING: CPU: 1 PID: 24 at lib/debugobjects.c:515 debug_print_object+0xc4/0xd8 lib/debugobjects.c:515
ODEBUG: free active (active state 0) object: 850977cc 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 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted 6.11.0-rc1-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<819538c8>] (dump_backtrace) from [<819539c4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:826228c4 r5:00000000 r4:8200ba44
[<819539ac>] (show_stack) from [<81971698>] (__dump_stack lib/dump_stack.c:93 [inline])
[<819539ac>] (show_stack) from [<81971698>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:119)
[<81971644>] (dump_stack_lvl) from [<819716d8>] (dump_stack+0x18/0x1c lib/dump_stack.c:128)
 r5:00000000 r4:8286bd18
[<819716c0>] (dump_stack) from [<8195446c>] (panic+0x120/0x358 kernel/panic.c:348)
[<8195434c>] (panic) from [<802421dc>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<8195434c>] (panic) from [<802421dc>] (get_taint+0x0/0x1c kernel/panic.c:236)
 r3:8260c5c4 r2:00000001 r1:81ff4268 r0:81ffc040
 r7:808258d4
[<80242168>] (check_panic_on_warn) from [<80242330>] (__warn+0x7c/0x180 kernel/panic.c:735)
[<802422b4>] (__warn) from [<8024261c>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:768)
 r8:00000009 r7:8205a73c r6:df87da8c r5:82e43000 r4:00000000
[<80242438>] (warn_slowpath_fmt) from [<808258d4>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:515)
 r10:00000005 r9:85097000 r8:81a01c24 r7:82084d08 r6:828cf69c r5:df87db34
 r4:8260cda4
[<80825810>] (debug_print_object) from [<80827174>] (__debug_check_no_obj_freed lib/debugobjects.c:990 [inline])
[<80825810>] (debug_print_object) from [<80827174>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1020)
 r8:85097800 r7:850977cc r6:00000100 r5:00000003 r4:00000000
[<80826f20>] (debug_check_no_obj_freed) from [<804bc53c>] (slab_free_hook mm/slub.c:2219 [inline])
[<80826f20>] (debug_check_no_obj_freed) from [<804bc53c>] (slab_free mm/slub.c:4473 [inline])
[<80826f20>] (debug_check_no_obj_freed) from [<804bc53c>] (kfree+0x198/0x338 mm/slub.c:4594)
 r10:82778724 r9:84e5fc80 r8:85097000 r7:80461598 r6:82c023c0 r5:ddeae440
 r4:85097000
[<804bc3a4>] (kfree) from [<80461598>] (kvfree+0x2c/0x30 mm/util.c:696)
 r10:82778724 r9:84e5fc80 r8:85097000 r7:00000000 r6:85176400 r5:850d3980
 r4:85097000
[<8046156c>] (kvfree) from [<814bc7f4>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031)
 r5:850d3980 r4:85097000
[<814bc7c8>] (netdev_release) from [<80a6c540>] (device_release+0x38/0xa8 drivers/base/core.c:2581)
 r5:850d3980 r4:850973c0
[<80a6c508>] (device_release) from [<8192d750>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80a6c508>] (device_release) from [<8192d750>] (kobject_release lib/kobject.c:720 [inline])
[<80a6c508>] (device_release) from [<8192d750>] (kref_put include/linux/kref.h:65 [inline])
[<80a6c508>] (device_release) from [<8192d750>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737)
 r5:81b4b6cc r4:850973c0
[<8192d688>] (kobject_put) from [<80a6c76c>] (put_device+0x18/0x1c drivers/base/core.c:3787)
 r7:84e5f400 r6:8509710c r5:85097000 r4:00000000
[<80a6c754>] (put_device) from [<8147175c>] (free_netdev+0x114/0x18c net/core/dev.c:11197)
[<81471648>] (free_netdev) from [<80d4df80>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636)
 r6:85097794 r5:85097680 r4:00000000
[<80d4ded4>] (usbnet_disconnect) from [<80db5c88>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461)
 r8:00000044 r7:84e5f430 r6:82778724 r5:00000000 r4:84e5f400
[<80db5c04>] (usb_unbind_interface) from [<80a74654>] (device_remove drivers/base/dd.c:568 [inline])
[<80db5c04>] (usb_unbind_interface) from [<80a74654>] (device_remove+0x64/0x6c drivers/base/dd.c:560)
 r10:00000000 r9:84e5fc80 r8:00000044 r7:84e5f474 r6:82778724 r5:00000000
 r4:84e5f430
[<80a745f0>] (device_remove) from [<80a75b6c>] (__device_release_driver drivers/base/dd.c:1272 [inline])
[<80a745f0>] (device_remove) from [<80a75b6c>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1295)
 r5:00000000 r4:84e5f430
[<80a759e0>] (device_release_driver_internal) from [<80a75bf8>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1318)
 r9:84e5fc80 r8:82fbc140 r7:82fbc138 r6:82fbc10c r5:84e5f430 r4:82fbc130
[<80a75be0>] (device_release_driver) from [<80a73cd8>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574)
[<80a73c0c>] (bus_remove_device) from [<80a6ddf0>] (device_del+0x148/0x38c drivers/base/core.c:3868)
 r9:84e5fc80 r8:82e43000 r7:04208060 r6:00000000 r5:84e5f430 r4:84e5f474
[<80a6dca8>] (device_del) from [<80db36a4>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418)
 r10:00000000 r9:00000000 r8:84e5f400 r7:84e5fc00 r6:850cf008 r5:00000001
 r4:00000038
[<80db35c8>] (usb_disable_device) from [<80da8504>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2304)
 r10:00000001 r9:845e1200 r8:84e5fcc4 r7:835b6800 r6:84e5fc80 r5:84e5fc00
 r4:60000113
[<80da8418>] (usb_disconnect) from [<80dab1b4>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline])
[<80da8418>] (usb_disconnect) from [<80dab1b4>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline])
[<80da8418>] (usb_disconnect) from [<80dab1b4>] (port_event drivers/usb/core/hub.c:5821 [inline])
[<80da8418>] (usb_disconnect) from [<80dab1b4>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903)
 r10:00000001 r9:00000100 r8:8379f700 r7:84e5fc00 r6:835b6000 r5:835b6a10
 r4:00000001
[<80daa33c>] (hub_event) from [<80265f08>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3231)
 r10:82ea8c05 r9:82e43000 r8:01800000 r7:ddde4000 r6:82ea8c00 r5:8379f700
 r4:82cb5580
[<80265d54>] (process_one_work) from [<80266aec>] (process_scheduled_works kernel/workqueue.c:3312 [inline])
[<80265d54>] (process_one_work) from [<80266aec>] (worker_thread+0x1ec/0x3f4 kernel/workqueue.c:3390)
 r10:82e43000 r9:82cb55ac r8:61c88647 r7:ddde4020 r6:82604d40 r5:ddde4000
 r4:82cb5580
[<80266900>] (worker_thread) from [<8026fb44>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df819d48 r8:82cc77c0 r7:82cb5580 r6:80266900 r5:82e43000
 r4:82cc7580
[<8026fa40>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf87dfb0 to 0xdf87dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fa40 r4:82cc7580
Rebooting in 86400 seconds..