------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88803cbe9160 object type: work_struct hint: usbnet_deferred_kevent+0x0/0xd70 drivers/net/usb/usbnet.c:669 WARNING: CPU: 1 PID: 13464 at lib/debugobjects.c:509 debug_print_object+0x194/0x2c0 lib/debugobjects.c:509 Modules linked in: CPU: 1 PID: 13464 Comm: kworker/1:7 Not tainted 6.2.0-rc6-next-20230203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: usb_hub_wq hub_event RIP: 0010:debug_print_object+0x194/0x2c0 lib/debugobjects.c:509 Code: df 48 89 fe 48 c1 ee 03 80 3c 16 00 0f 85 c7 00 00 00 48 8b 14 dd 80 15 a7 8a 50 4c 89 ee 48 c7 c7 40 09 a7 8a e8 5c b0 2e fd <0f> 0b 58 83 05 4e fc 57 0a 01 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e RSP: 0018:ffffc900054b7518 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffc90014a81000 RDX: 0000000000040000 RSI: ffffffff814c0217 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8a4b86a0 R13: ffffffff8aa70e40 R14: ffff888083542478 R15: ffffffff8152b1b0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faa2216ee3c CR3: 00000000369ea000 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+0x305/0x420 lib/debugobjects.c:1027 slab_free_hook mm/slub.c:1756 [inline] slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] __kmem_cache_free+0xaf/0x2d0 mm/slub.c:3800 kvfree+0x46/0x50 mm/util.c:649 device_release+0xa3/0x240 drivers/base/core.c:2289 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c2/0x4d0 lib/kobject.c:729 put_device+0x1f/0x30 drivers/base/core.c:3542 free_netdev+0x441/0x620 net/core/dev.c:10740 usbnet_disconnect+0x26b/0x500 drivers/net/usb/usbnet.c:1637 usb_unbind_interface+0x1dc/0x8e0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:542 [inline] device_remove+0x11f/0x170 drivers/base/dd.c:534 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x443/0x610 drivers/base/dd.c:1263 bus_remove_device+0x2e7/0x5a0 drivers/base/bus.c:489 device_del+0x48a/0xb80 drivers/base/core.c:3620 usb_disable_device+0x35a/0x7b0 drivers/usb/core/message.c:1420 usb_disconnect+0x2db/0x8a0 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x1fbf/0x4e50 drivers/usb/core/hub.c:5793 process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308