cdc_ncm 2-1:1.0 usb0: register 'cdc_ncm' at usb-dummy_hcd.1-1, CDC NCM (NO ZLP), 42:42:42:42:42:42
usb 2-1: USB disconnect, device number 4
cdc_ncm 2-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.1-1, CDC NCM (NO ZLP)
------------[ 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: 85724804 object type: work_struct hint: usbnet_deferred_kevent+0x0/0x38c drivers/net/usb/usbnet.c:1864
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)
r7:82240780 r6:8321a400 r5:00000000 r4:82252488
[<80201b08>] (show_stack) from [<8021f920>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021f920>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021f8cc>] (dump_stack_lvl) from [<8021f960>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
r5:00000000 r4:82a78d18
[<8021f948>] (dump_stack) from [<802025f8>] (vpanic+0xe0/0x2e8 kernel/panic.c:489)
[<80202518>] (vpanic) from [<80202834>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:626)
r7:808f0bb8
[<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 r1:82238ce4 r0:82240780
[<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 r7:822aba34 r6:df879a84 r5:8321a400 r4:00000000
[<80252bb8>] (warn_slowpath_fmt) from [<808f0bb8>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:612)
r10:00000005 r9:85724000 r8:81c01eb8 r7:822d7124 r6:82af1fa4 r5:df879b2c
r4:8280cbd8
[<808f0af4>] (debug_print_object) from [<808f261c>] (__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline])
[<808f0af4>] (debug_print_object) from [<808f261c>] (debug_check_no_obj_freed+0x25c/0x2a4 lib/debugobjects.c:1129)
r8:85725000 r7:85724804 r6:00000100 r5:00000003 r4:00000000
[<808f23c0>] (debug_check_no_obj_freed) from [<8050ae6c>] (slab_free_hook mm/slub.c:2470 [inline])
[<808f23c0>] (debug_check_no_obj_freed) from [<8050ae6c>] (slab_free mm/slub.c:6630 [inline])
[<808f23c0>] (debug_check_no_obj_freed) from [<8050ae6c>] (kfree+0x250/0x4ac mm/slub.c:6837)
r10:00000100 r9:8297ef88 r8:8321a400 r7:8050d9f0 r6:ddebd080 r5:83002480
r4:85724000
[<8050ac1c>] (kfree) from [<8050d9f0>] (kvfree+0x2c/0x30 mm/slub.c:7143)
r10:00000100 r9:8297ef88 r8:85724000 r7:00000000 r6:8541fc80 r5:8463d200
r4:85724000
[<8050d9c4>] (kvfree) from [<815d6070>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2252)
r5:8463d200 r4:85724000
[<815d6044>] (netdev_release) from [<80b53adc>] (device_release+0x38/0xa8 drivers/base/core.c:2565)
r5:8463d200 r4:857243a8
[<80b53aa4>] (device_release) from [<81a3a9d0>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80b53aa4>] (device_release) from [<81a3a9d0>] (kobject_release lib/kobject.c:720 [inline])
[<80b53aa4>] (device_release) from [<81a3a9d0>] (kref_put include/linux/kref.h:65 [inline])
[<80b53aa4>] (device_release) from [<81a3a9d0>] (kobject_put+0xa0/0x1f4 lib/kobject.c:737)
r5:81d4ffc8 r4:857243a8
[<81a3a930>] (kobject_put) from [<80b53d28>] (put_device+0x18/0x1c drivers/base/core.c:3797)
r7:000000c0 r6:00000000 r5:00000000 r4:85724000
[<80b53d10>] (put_device) from [<81585c68>] (free_netdev+0x190/0x248 net/core/dev.c:12090)
[<81585ad8>] (free_netdev) from [<80e496e0>] (usbnet_disconnect+0xb8/0xfc drivers/net/usb/usbnet.c:1675)
r7:85b31c00 r6:857247d4 r5:857246c0 r4:00000000
[<80e49628>] (usbnet_disconnect) from [<80eb5640>] (usb_unbind_interface+0x84/0x2b8 drivers/usb/core/driver.c:458)
r8:85b32488 r7:85b31c74 r6:85b31c30 r5:00000000 r4:85b32400
[<80eb55bc>] (usb_unbind_interface) from [<80b5bed0>] (device_remove drivers/base/dd.c:571 [inline])
[<80eb55bc>] (usb_unbind_interface) from [<80b5bed0>] (device_remove+0x64/0x6c drivers/base/dd.c:563)
r10:00000100 r9:85b32488 r8:00000044 r7:85b31c74 r6:8297ef88 r5:00000000
r4:85b31c30
[<80b5be6c>] (device_remove) from [<80b5d3c0>] (__device_release_driver drivers/base/dd.c:1274 [inline])
[<80b5be6c>] (device_remove) from [<80b5d3c0>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1297)
r5:00000000 r4:85b31c30
[<80b5d234>] (device_release_driver_internal) from [<80b5d44c>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1320)
r9:85b32488 r8:838cd240 r7:838cd238 r6:838cd20c r5:85b31c30 r4:838cd230
[<80b5d434>] (device_release_driver) from [<80b5b510>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:579)
[<80b5b444>] (bus_remove_device) from [<80b5577c>] (device_del+0x148/0x38c drivers/base/core.c:3878)
r9:85b32488 r8:8321a400 r7:04208060 r6:00000000 r5:85b31c30 r4:85b31c74
[<80b55634>] (device_del) from [<80eb2f2c>] (usb_disable_device+0xd4/0x1e8 drivers/usb/core/message.c:1418)
r10:00000100 r9:00000000 r8:00000000 r7:85b31c00 r6:85b32400 r5:85887448
r4:00000001
[<80eb2e58>] (usb_disable_device) from [<80ea7c9c>] (usb_disconnect+0xec/0x2ac drivers/usb/core/hub.c:2344)
r9:841f5200 r8:85b324cc r7:83f96c00 r6:85b32488 r5:85b32400 r4:60000113
[<80ea7bb0>] (usb_disconnect) from [<80eaac98>] (hub_port_connect drivers/usb/core/hub.c:5406 [inline])
[<80ea7bb0>] (usb_disconnect) from [<80eaac98>] (hub_port_connect_change drivers/usb/core/hub.c:5706 [inline])
[<80ea7bb0>] (usb_disconnect) from [<80eaac98>] (port_event drivers/usb/core/hub.c:5870 [inline])
[<80ea7bb0>] (usb_disconnect) from [<80eaac98>] (hub_event+0x1194/0x1950 drivers/usb/core/hub.c:5952)
r10:00000100 r9:83e3a92c r8:83f96400 r7:85b32400 r6:83e3a200 r5:00000001
r4:00000001
[<80ea9b04>] (hub_event) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
r10:838cd470 r9:83270405 r8:8321a400 r7:ddde3d80 r6:83270400 r5:83e3a92c
r4:830cf000
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
r10:61c88647 r9:8321a400 r8:830cf02c r7:82804d40 r6:ddde3d80 r5:ddde3da0
r4:830cf000
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
r10:00000000 r9:830cf000 r8:80278fec r7:df819d50 r6:830cf080 r5:8321a400
r4:00000001
[<802800e0>] (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 r5:802800e0
r4:830cd1c0
Rebooting in 86400 seconds..