------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: work_struct hint: usbnet_deferred_kevent+0x0/0xb90 drivers/net/usb/usbnet.c:671 WARNING: CPU: 1 PID: 3692 at lib/debugobjects.c:509 debug_print_object+0x16e/0x250 lib/debugobjects.c:509 Modules linked in: CPU: 1 PID: 3692 Comm: kworker/1:3 Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: usb_hub_wq hub_event RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:509 Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd e0 a2 29 8a 4c 89 ee 48 c7 c7 c0 96 29 8a e8 83 a8 42 05 <0f> 0b 83 05 55 98 b9 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc9000546f540 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff81621a58 RDI: fffff52000a8de9a RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 000000004245444f R12: ffffffff89cbc5c0 R13: ffffffff8a299ba0 R14: ffffffff814dba90 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055927f18e950 CR3: 0000000026762000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:996 [inline] debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1027 slab_free_hook mm/slub.c:1699 [inline] slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1750 slab_free mm/slub.c:3666 [inline] __kmem_cache_free+0xab/0x3b0 mm/slub.c:3679 __vmalloc_array-0xe/0x70 device_release+0x9f/0x240 drivers/base/core.c:2330 kobject_cleanup lib/kobject.c:673 [inline] kobject_release lib/kobject.c:704 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1be/0x4c0 lib/kobject.c:721 put_device+0x1b/0x30 drivers/base/core.c:3624 free_netdev+0x438/0x620 net/core/dev.c:10735 usbnet_disconnect+0x26c/0x300 drivers/net/usb/usbnet.c:1632 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:550 [inline] device_remove+0x11f/0x170 drivers/base/dd.c:542 __device_release_driver drivers/base/dd.c:1249 [inline] device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1275 bus_remove_device+0x2e3/0x590 drivers/base/bus.c:529 device_del+0x4f3/0xc80 drivers/base/core.c:3704 usb_disable_device+0x356/0x7a0 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x259/0x6ed drivers/usb/core/hub.c:2235 hub_port_connect drivers/usb/core/hub.c:5197 [inline] hub_port_connect_change drivers/usb/core/hub.c:5497 [inline] port_event drivers/usb/core/hub.c:5653 [inline] hub_event+0x1f86/0x45c0 drivers/usb/core/hub.c:5735 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308