asix 2-1:7.0 eth1: register 'asix' at usb-dummy_hcd.1-1, ASIX AX88178 USB 2.0 Ethernet, 06:43:4d:33:82:41 usb 2-1: USB disconnect, device number 18 asix 2-1:7.0 eth1: unregister 'asix' usb-dummy_hcd.1-1, ASIX AX88178 USB 2.0 Ethernet ------------[ cut here ]------------ WARNING: CPU: 1 PID: 23 at lib/debugobjects.c:612 debug_print_object+0xc4/0xd8 lib/debugobjects.c:612 ODEBUG: free active (active state 0) object: 8557f804 object type: work_struct hint: usbnet_deferred_kevent+0x0/0x38c drivers/net/usb/usbnet.c:1862 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 UID: 0 PID: 23 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Workqueue: usb_hub_wq hub_event Call trace: [<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:82252114 r6:8321a400 r5:00000000 r4:82263df8 [<80201b08>] (show_stack) from [<8021f8f0>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b08>] (show_stack) from [<8021f8f0>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120) [<8021f89c>] (dump_stack_lvl) from [<8021f930>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:82a78d18 [<8021f918>] (dump_stack) from [<802025f8>] (vpanic+0xe0/0x2e8 kernel/panic.c:489) [<80202518>] (vpanic) from [<80202834>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:626) r7:808f2438 [<80202800>] (panic) from [<80252948>] (check_panic_on_warn kernel/panic.c:376 [inline]) [<80202800>] (panic) from [<80252948>] (get_taint+0x0/0x1c kernel/panic.c:371) r3:8280c684 r2:00000001 r1:8224a668 r0:82252114 [<802528d0>] (check_panic_on_warn) from [<80252aac>] (__warn+0x80/0x188 kernel/panic.c:897) [<80252a2c>] (__warn) from [<80252d9c>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:932) r8:00000009 r7:822bd768 r6:df879a84 r5:8321a400 r4:00000000 [<80252bb8>] (warn_slowpath_fmt) from [<808f2438>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:612) r10:00000005 r9:8557f000 r8:81c01eb8 r7:822e8e94 r6:82af0d64 r5:df879b2c r4:8280cbd8 [<808f2374>] (debug_print_object) from [<808f3e9c>] (__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]) [<808f2374>] (debug_print_object) from [<808f3e9c>] (debug_check_no_obj_freed+0x25c/0x2a4 lib/debugobjects.c:1129) r8:85580000 r7:8557f804 r6:00000100 r5:00000003 r4:00000000 [<808f3c40>] (debug_check_no_obj_freed) from [<80509114>] (slab_free_hook mm/slub.c:2445 [inline]) [<808f3c40>] (debug_check_no_obj_freed) from [<80509114>] (slab_free mm/slub.c:6566 [inline]) [<808f3c40>] (debug_check_no_obj_freed) from [<80509114>] (kfree+0x250/0x4ac mm/slub.c:6773) r10:00000100 r9:8297e4e0 r8:8321a400 r7:8050bc40 r6:ddeb94e0 r5:83002480 r4:8557f000 [<80508ec4>] (kfree) from [<8050bc40>] (kvfree+0x2c/0x30 mm/slub.c:7079) r10:00000100 r9:8297e4e0 r8:8557f000 r7:00000000 r6:85cd6a80 r5:84c9c180 r4:8557f000 [<8050bc14>] (kvfree) from [<815e6d4c>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2252) r5:84c9c180 r4:8557f000 [<815e6d20>] (netdev_release) from [<80b5563c>] (device_release+0x38/0xa8 drivers/base/core.c:2565) r5:84c9c180 r4:8557f3a0 [<80b55604>] (device_release) from [<81a1cef0>] (kobject_cleanup lib/kobject.c:689 [inline]) [<80b55604>] (device_release) from [<81a1cef0>] (kobject_release lib/kobject.c:720 [inline]) [<80b55604>] (device_release) from [<81a1cef0>] (kref_put include/linux/kref.h:65 [inline]) [<80b55604>] (device_release) from [<81a1cef0>] (kobject_put+0xa0/0x1f4 lib/kobject.c:737) r5:81d504c8 r4:8557f3a0 [<81a1ce50>] (kobject_put) from [<80b55888>] (put_device+0x18/0x1c drivers/base/core.c:3797) r7:000000c0 r6:00000000 r5:00000000 r4:8557f000 [<80b55870>] (put_device) from [<81596994>] (free_netdev+0x190/0x248 net/core/dev.c:12090) [<81596804>] (free_netdev) from [<80e4b118>] (usbnet_disconnect+0xb8/0xfc drivers/net/usb/usbnet.c:1673) r7:85b91400 r6:8557f7d4 r5:8557f6c0 r4:00000000 [<80e4b060>] (usbnet_disconnect) from [<80eb6a58>] (usb_unbind_interface+0x84/0x2b8 drivers/usb/core/driver.c:458) r8:85b92c88 r7:85b91474 r6:85b91430 r5:00000000 r4:85b92c00 [<80eb69d4>] (usb_unbind_interface) from [<80b5da10>] (device_remove drivers/base/dd.c:571 [inline]) [<80eb69d4>] (usb_unbind_interface) from [<80b5da10>] (device_remove+0x64/0x6c drivers/base/dd.c:563) r10:00000100 r9:85b92c88 r8:00000044 r7:85b91474 r6:8297e4e0 r5:00000000 r4:85b91430 [<80b5d9ac>] (device_remove) from [<80b5ef00>] (__device_release_driver drivers/base/dd.c:1274 [inline]) [<80b5d9ac>] (device_remove) from [<80b5ef00>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1297) r5:00000000 r4:85b91430 [<80b5ed74>] (device_release_driver_internal) from [<80b5ef8c>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1320) r9:85b92c88 r8:833bb440 r7:833bb438 r6:833bb40c r5:85b91430 r4:833bb430 [<80b5ef74>] (device_release_driver) from [<80b5d050>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:579) [<80b5cf84>] (bus_remove_device) from [<80b572dc>] (device_del+0x148/0x38c drivers/base/core.c:3878) r9:85b92c88 r8:8321a400 r7:04208060 r6:00000000 r5:85b91430 r4:85b91474 [<80b57194>] (device_del) from [<80eb4344>] (usb_disable_device+0xd4/0x1e8 drivers/usb/core/message.c:1418) r10:00000100 r9:00000000 r8:00000000 r7:85b91400 r6:85b92c00 r5:85992348 r4:60000113 [<80eb4270>] (usb_disable_device) from [<80ea90b4>] (usb_disconnect+0xec/0x2ac drivers/usb/core/hub.c:2344) r9:85a44600 r8:85b92ccc r7:83c89800 r6:85b92c88 r5:85b92c00 r4:60000113 [<80ea8fc8>] (usb_disconnect) from [<80eac0b0>] (hub_port_connect drivers/usb/core/hub.c:5406 [inline]) [<80ea8fc8>] (usb_disconnect) from [<80eac0b0>] (hub_port_connect_change drivers/usb/core/hub.c:5706 [inline]) [<80ea8fc8>] (usb_disconnect) from [<80eac0b0>] (port_event drivers/usb/core/hub.c:5870 [inline]) [<80ea8fc8>] (usb_disconnect) from [<80eac0b0>] (hub_event+0x1194/0x1950 drivers/usb/core/hub.c:5952) r10:00000100 r9:8415572c r8:83c89000 r7:85b92c00 r6:84155000 r5:00000001 r4:00000001 [<80eaaf1c>] (hub_event) from [<80278594>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263) r10:833bb670 r9:832ede05 r8:8321a400 r7:ddde3d80 r6:832ede00 r5:8415572c r4:830cf000 [<802783e0>] (process_one_work) from [<802791dc>] (process_scheduled_works kernel/workqueue.c:3346 [inline]) [<802783e0>] (process_one_work) from [<802791dc>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427) r10:61c88647 r9:8321a400 r8:830cf02c r7:82804d40 r6:ddde3d80 r5:ddde3da0 r4:830cf000 [<80278fe0>] (worker_thread) from [<80280200>] (kthread+0x12c/0x280 kernel/kthread.c:463) r10:00000000 r9:830cf000 r8:80278fe0 r7:df819d50 r6:830cf080 r5:8321a400 r4:00000001 [<802800d4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf879fb0 to 0xdf879ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800d4 r4:830cd280 Rebooting in 86400 seconds..