------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: work_struct hint: do_submit_urb+0x0/0x3e0 drivers/media/usb/siano/smsusb.c:146
WARNING: CPU: 1 PID: 25645 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 lib/debugobjects.c:485
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 25645 Comm: kworker/1:8 Not tainted 5.9.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x16e lib/dump_stack.c:118
 panic+0x2cb/0x702 kernel/panic.c:231
 __warn.cold+0x20/0x44 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x41/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:485
Code: dd 00 a3 1c 86 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 00 a3 1c 86 48 c7 c7 40 97 1c 86 e8 b2 db 25 ff <0f> 0b 83 05 93 4a 1d 06 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffff8881ce25edd0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff8129efa3 RDI: ffffed1039c4bdac
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8881db32f50f
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff872e23a0
R13: ffffffff8119f970 R14: dead000000000100 R15: dffffc0000000000
 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
 debug_check_no_obj_freed+0x301/0x41c lib/debugobjects.c:998
 slab_free_hook mm/slub.c:1536 [inline]
 slab_free_freelist_hook+0x107/0x150 mm/slub.c:1577
 slab_free mm/slub.c:3138 [inline]
 kfree+0xbe/0x470 mm/slub.c:4119
 smsusb_term_device+0x189/0x250 drivers/media/usb/siano/smsusb.c:350
 smsusb_init_device+0xa5c/0xae6 drivers/media/usb/siano/smsusb.c:487
 smsusb_probe+0xd74/0xe1a drivers/media/usb/siano/smsusb.c:566
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 really_probe+0x291/0xde0 drivers/base/dd.c:553
 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4a0 drivers/base/dd.c:912
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xb51/0x1c70 drivers/base/core.c:2926
 usb_set_configuration+0x1111/0x1880 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:240
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 really_probe+0x291/0xde0 drivers/base/dd.c:553
 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4a0 drivers/base/dd.c:912
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xb51/0x1c70 drivers/base/core.c:2926
 usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5222 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5362 [inline]
 port_event drivers/usb/core/hub.c:5508 [inline]
 hub_event+0x2348/0x42b0 drivers/usb/core/hub.c:5590
 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269
 process_scheduled_works kernel/workqueue.c:2331 [inline]
 worker_thread+0x82b/0x1120 kernel/workqueue.c:2417
 kthread+0x392/0x470 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Kernel Offset: disabled
Rebooting in 86400 seconds..