cdc_ncm 1-1:1.0 usb0: register 'cdc_ncm' at usb-dummy_hcd.0-1, CDC NCM (NO ZLP), 42:42:42:42:42:42
usb 1-1: USB disconnect, device number 7
cdc_ncm 1-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.0-1, CDC NCM (NO ZLP)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4135 at lib/debugobjects.c:612 debug_print_object+0xc4/0xd8 lib/debugobjects.c:612
ODEBUG: free active (active state 0) object: 83fbe80c object type: work_struct hint: usbnet_deferred_kevent+0x0/0x394 drivers/net/usb/usbnet.c:644
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 4135 Comm: kworker/1:12 Not tainted 6.15.0-rc5-syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Workqueue: usb_hub_wq hub_event
Call trace: 
[<802019e4>] (dump_backtrace) from [<80201ae0>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:828227fc r5:00000000 r4:82257c34
[<80201ac8>] (show_stack) from [<80220020>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201ac8>] (show_stack) from [<80220020>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021ffcc>] (dump_stack_lvl) from [<80220060>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a70d4c
[<80220048>] (dump_stack) from [<802025f8>] (panic+0x120/0x374 kernel/panic.c:354)
[<802024d8>] (panic) from [<802619e8>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<802024d8>] (panic) from [<802619e8>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8280c604 r2:00000001 r1:8223e7fc r0:822462fc
 r7:808c8bf4
[<80261974>] (check_panic_on_warn) from [<80261b4c>] (__warn+0x80/0x188 kernel/panic.c:749)
[<80261acc>] (__warn) from [<80261e3c>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:784)
 r8:00000009 r7:822af7d0 r6:dfb91a84 r5:850c3c00 r4:00000000
[<80261c58>] (warn_slowpath_fmt) from [<808c8bf4>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:612)
 r10:00000005 r9:83fbe000 r8:81c01f84 r7:822da380 r6:82add134 r5:dfb91b2c
 r4:8280cc1c
[<808c8b30>] (debug_print_object) from [<808ca640>] (__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline])
[<808c8b30>] (debug_print_object) from [<808ca640>] (debug_check_no_obj_freed+0x25c/0x2a4 lib/debugobjects.c:1129)
 r8:83fbf000 r7:83fbe80c r6:00000100 r5:00000003 r4:00000000
[<808ca3e4>] (debug_check_no_obj_freed) from [<80505cac>] (slab_free_hook mm/slub.c:2311 [inline])
[<808ca3e4>] (debug_check_no_obj_freed) from [<80505cac>] (slab_free mm/slub.c:4642 [inline])
[<808ca3e4>] (debug_check_no_obj_freed) from [<80505cac>] (kfree+0x190/0x394 mm/slub.c:4841)
 r10:00000001 r9:8298105c r8:83fbe000 r7:80506b50 r6:83002480 r5:dde885e0
 r4:83fbe000
[<80505b1c>] (kfree) from [<80506b50>] (kvfree+0x2c/0x30 mm/slub.c:5055)
 r10:00000001 r9:8298105c r8:83fbe000 r7:00000000 r6:84ba5c00 r5:848e9080
 r4:83fbe000
[<80506b24>] (kvfree) from [<815968f0>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2231)
 r5:848e9080 r4:83fbe000
[<815968c4>] (netdev_release) from [<80b1f39c>] (device_release+0x38/0xa8 drivers/base/core.c:2568)
 r5:848e9080 r4:83fbe3c0
[<80b1f364>] (device_release) from [<81a28510>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80b1f364>] (device_release) from [<81a28510>] (kobject_release lib/kobject.c:720 [inline])
[<80b1f364>] (device_release) from [<81a28510>] (kref_put include/linux/kref.h:65 [inline])
[<80b1f364>] (device_release) from [<81a28510>] (kobject_put+0xa0/0x1f4 lib/kobject.c:737)
 r5:81d4b694 r4:83fbe3c0
[<81a28470>] (kobject_put) from [<80b1f5c8>] (put_device+0x18/0x1c drivers/base/core.c:3800)
 r7:000000c0 r6:00000000 r5:00000000 r4:83fbe000
[<80b1f5b0>] (put_device) from [<81548acc>] (free_netdev+0x18c/0x244 net/core/dev.c:11805)
[<81548940>] (free_netdev) from [<80e0f5a8>] (usbnet_disconnect+0xb8/0xfc drivers/net/usb/usbnet.c:1663)
 r7:84a16400 r6:83fbe7d4 r5:83fbe6c0 r4:00000000
[<80e0f4f0>] (usbnet_disconnect) from [<80e78d5c>] (usb_unbind_interface+0x84/0x2b4 drivers/usb/core/driver.c:458)
 r8:84a17c88 r7:84a16474 r6:84a16430 r5:00000000 r4:84a17c00
[<80e78cd8>] (usb_unbind_interface) from [<80b27650>] (device_remove drivers/base/dd.c:569 [inline])
[<80e78cd8>] (usb_unbind_interface) from [<80b27650>] (device_remove+0x64/0x6c drivers/base/dd.c:561)
 r10:00000001 r9:84a17c88 r8:00000044 r7:84a16474 r6:8298105c r5:00000000
 r4:84a16430
[<80b275ec>] (device_remove) from [<80b28b40>] (__device_release_driver drivers/base/dd.c:1272 [inline])
[<80b275ec>] (device_remove) from [<80b28b40>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1295)
 r5:00000000 r4:84a16430
[<80b289b4>] (device_release_driver_internal) from [<80b28bcc>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1318)
 r9:84a17c88 r8:83328f40 r7:83328f38 r6:83328f0c r5:84a16430 r4:83328f30
[<80b28bb4>] (device_release_driver) from [<80b26ca4>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:579)
[<80b26bd8>] (bus_remove_device) from [<80b21000>] (device_del+0x148/0x38c drivers/base/core.c:3881)
 r9:84a17c88 r8:850c3c00 r7:04208060 r6:00000000 r5:84a16430 r4:84a16474
[<80b20eb8>] (device_del) from [<80e767ac>] (usb_disable_device+0xd4/0x1e8 drivers/usb/core/message.c:1418)
 r10:00000001 r9:00000000 r8:00000000 r7:84a16400 r6:84a17c00 r5:84914948
 r4:00000001
[<80e766d8>] (usb_disable_device) from [<80e6b540>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2316)
 r9:84274e00 r8:84a17ccc r7:83ffd400 r6:84a17c88 r5:84a17c00 r4:600c0013
[<80e6b454>] (usb_disconnect) from [<80e6e200>] (hub_port_connect drivers/usb/core/hub.c:5371 [inline])
[<80e6b454>] (usb_disconnect) from [<80e6e200>] (hub_port_connect_change drivers/usb/core/hub.c:5671 [inline])
[<80e6b454>] (usb_disconnect) from [<80e6e200>] (port_event drivers/usb/core/hub.c:5831 [inline])
[<80e6b454>] (usb_disconnect) from [<80e6e200>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5913)
 r10:00000001 r9:00000100 r8:83cf6d00 r7:84a17c00 r6:83ffcc00 r5:83ffd610
 r4:00000001
[<80e6d388>] (hub_event) from [<802873bc>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3238)
 r10:8332e170 r9:83271a05 r8:850c3c00 r7:ddde2d80 r6:83271a00 r5:83cf6d00
 r4:847e7d00
[<80287208>] (process_one_work) from [<80288004>] (process_scheduled_works kernel/workqueue.c:3319 [inline])
[<80287208>] (process_one_work) from [<80288004>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3400)
 r10:61c88647 r9:850c3c00 r8:847e7d2c r7:82804d40 r6:ddde2d80 r5:ddde2da0
 r4:847e7d00
[<80287e08>] (worker_thread) from [<8028f074>] (kthread+0x12c/0x280 kernel/kthread.c:464)
 r10:00000000 r9:847e7d00 r8:80287e08 r7:dfab5e60 r6:847e7c80 r5:850c3c00
 r4:00000001
[<8028ef48>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfb91fb0 to 0xdfb91ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8028ef48
 r4:850e4080
Rebooting in 86400 seconds..