cdc_ncm 1-1:1.0 eth1: 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 14 cdc_ncm 1-1:1.0 eth1: unregister 'cdc_ncm' usb-dummy_hcd.0-1, CDC NCM (NO ZLP) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 88 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514 ODEBUG: free active (active state 0) object: 84a38fcc object type: work_struct hint: usbnet_deferred_kevent+0x0/0x394 drivers/net/usb/usbnet.c:633 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 UID: 0 PID: 88 Comm: kworker/1:2 Not tainted 6.12.0-rc6-syzkaller #0 Hardware name: ARM-Versatile Express Workqueue: usb_hub_wq hub_event Call trace: [<8199c7f8>] (dump_backtrace) from [<8199c8f4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:82622f44 r5:00000000 r4:8203db14 [<8199c8dc>] (show_stack) from [<819bad88>] (__dump_stack lib/dump_stack.c:94 [inline]) [<8199c8dc>] (show_stack) from [<819bad88>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120) [<819bad34>] (dump_stack_lvl) from [<819badc8>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:82870d18 [<819badb0>] (dump_stack) from [<8199d420>] (panic+0x120/0x374 kernel/panic.c:354) [<8199d300>] (panic) from [<80242118>] (check_panic_on_warn kernel/panic.c:243 [inline]) [<8199d300>] (panic) from [<80242118>] (get_taint+0x0/0x1c kernel/panic.c:238) r3:8260c5c4 r2:00000001 r1:82025ee8 r0:8202d950 r7:808555b8 [<802420a4>] (check_panic_on_warn) from [<8024227c>] (__warn+0x80/0x188 kernel/panic.c:748) [<802421fc>] (__warn) from [<8024256c>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:783) r8:00000009 r7:8208cc4c r6:df995a8c r5:8360bc00 r4:00000000 [<80242388>] (warn_slowpath_fmt) from [<808555b8>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514) r10:00000005 r9:84a38800 r8:81a01c24 r7:820b7a3c r6:828dd084 r5:df995b34 r4:8260cda4 [<808554f4>] (debug_print_object) from [<80856e48>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline]) [<808554f4>] (debug_print_object) from [<80856e48>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019) r8:84a39000 r7:84a38fcc r6:00000100 r5:00000003 r4:00000000 [<80856bf4>] (debug_check_no_obj_freed) from [<804c9928>] (slab_free_hook mm/slub.c:2273 [inline]) [<80856bf4>] (debug_check_no_obj_freed) from [<804c9928>] (slab_free mm/slub.c:4579 [inline]) [<80856bf4>] (debug_check_no_obj_freed) from [<804c9928>] (kfree+0x190/0x394 mm/slub.c:4727) r10:8277e5bc r9:8495fc80 r8:84a38800 r7:8046d624 r6:82c023c0 r5:dde9ffe0 r4:84a38800 [<804c9798>] (kfree) from [<8046d624>] (kvfree+0x2c/0x30 mm/util.c:701) r10:8277e5bc r9:8495fc80 r8:84a38800 r7:00000000 r6:850dc740 r5:8520a100 r4:84a38800 [<8046d5f8>] (kvfree) from [<814fe6b4>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2034) r5:8520a100 r4:84a38800 [<814fe688>] (netdev_release) from [<80aa4c6c>] (device_release+0x38/0xa8 drivers/base/core.c:2574) r5:8520a100 r4:84a38bc0 [<80aa4c34>] (device_release) from [<8197664c>] (kobject_cleanup lib/kobject.c:689 [inline]) [<80aa4c34>] (device_release) from [<8197664c>] (kobject_release lib/kobject.c:720 [inline]) [<80aa4c34>] (device_release) from [<8197664c>] (kref_put include/linux/kref.h:65 [inline]) [<80aa4c34>] (device_release) from [<8197664c>] (kobject_put+0xa0/0x1f4 lib/kobject.c:737) r5:81b4c9c4 r4:84a38bc0 [<819765ac>] (kobject_put) from [<80aa4e98>] (put_device+0x18/0x1c drivers/base/core.c:3780) r7:8495e000 r6:00000000 r5:84a38800 r4:00000000 [<80aa4e80>] (put_device) from [<814b2c08>] (free_netdev+0x134/0x1ac net/core/dev.c:11259) [<814b2ad4>] (free_netdev) from [<80d897d4>] (usbnet_disconnect+0xb8/0xfc drivers/net/usb/usbnet.c:1652) r6:84a38f94 r5:84a38e80 r4:00000000 [<80d8971c>] (usbnet_disconnect) from [<80df20b8>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461) r8:00000044 r7:8495e030 r6:8277e5bc r5:00000000 r4:8495e000 [<80df2034>] (usb_unbind_interface) from [<80aace3c>] (device_remove drivers/base/dd.c:569 [inline]) [<80df2034>] (usb_unbind_interface) from [<80aace3c>] (device_remove+0x64/0x6c drivers/base/dd.c:561) r10:00000000 r9:8495fc80 r8:00000044 r7:8495e074 r6:8277e5bc r5:00000000 r4:8495e030 [<80aacdd8>] (device_remove) from [<80aae328>] (__device_release_driver drivers/base/dd.c:1273 [inline]) [<80aacdd8>] (device_remove) from [<80aae328>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1296) r5:00000000 r4:8495e030 [<80aae19c>] (device_release_driver_internal) from [<80aae3b4>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1319) r9:8495fc80 r8:82f9d040 r7:82f9d038 r6:82f9d00c r5:8495e030 r4:82f9d030 [<80aae39c>] (device_release_driver) from [<80aac49c>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:576) [<80aac3d0>] (bus_remove_device) from [<80aa67e0>] (device_del+0x148/0x38c drivers/base/core.c:3861) r9:8495fc80 r8:8360bc00 r7:04208060 r6:00000000 r5:8495e030 r4:8495e074 [<80aa6698>] (device_del) from [<80defad4>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418) r10:00000000 r9:00000000 r8:8495e000 r7:8495fc00 r6:84802c08 r5:00000001 r4:00000038 [<80def9f8>] (usb_disable_device) from [<80de4938>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2304) r10:00000001 r9:85263a00 r8:8495fcc4 r7:83a6b400 r6:8495fc80 r5:8495fc00 r4:60000013 [<80de484c>] (usb_disconnect) from [<80de75e8>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline]) [<80de484c>] (usb_disconnect) from [<80de75e8>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]) [<80de484c>] (usb_disconnect) from [<80de75e8>] (port_event drivers/usb/core/hub.c:5821 [inline]) [<80de484c>] (usb_disconnect) from [<80de75e8>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903) r10:00000001 r9:00000100 r8:83866900 r7:8495fc00 r6:83a6ac00 r5:83a6b610 r4:00000001 [<80de6770>] (hub_event) from [<802660dc>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229) r10:82e6ee05 r9:8360bc00 r8:01800000 r7:ddde40c0 r6:82e6ee00 r5:83866900 r4:82e9d600 [<80265f28>] (process_one_work) from [<80266cc0>] (process_scheduled_works kernel/workqueue.c:3310 [inline]) [<80265f28>] (process_one_work) from [<80266cc0>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391) r10:8360bc00 r9:82e9d62c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:82e9d600 [<80266ad4>] (worker_thread) from [<8026fd3c>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df92de78 r8:83661100 r7:82e9d600 r6:80266ad4 r5:8360bc00 r4:82ee8400 [<8026fc38>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf995fb0 to 0xdf995ff8) 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 r5:8026fc38 r4:82ee8400 Rebooting in 86400 seconds..