------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88813222d120 object type: work_struct hint: usbnet_deferred_kevent+0x0/0xe90 drivers/net/usb/usbnet.c:619 WARNING: CPU: 1 PID: 10720 at lib/debugobjects.c:514 debug_print_object+0x1a3/0x2b0 lib/debugobjects.c:514 Modules linked in: CPU: 1 UID: 0 PID: 10720 Comm: kworker/1:7 Not tainted 6.12.0-rc6-syzkaller-00153-g237d4e0f4113 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:debug_print_object+0x1a3/0x2b0 lib/debugobjects.c:514 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd 80 fe 46 87 41 56 4c 89 e6 48 c7 c7 e0 f1 46 87 e8 9e b6 c3 fe 90 <0f> 0b 90 90 58 83 05 6d 0d ff 07 01 48 83 c4 18 5b 5d 41 5c 41 5d RSP: 0018:ffffc9000f587468 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffc9000cf9b000 RDX: 0000000000100000 RSI: ffffffff811ab0d6 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8746f880 R13: ffffffff87272560 R14: ffffffff8453c920 R15: ffffc9000f587578 FS: 0000000000000000(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f794ee23000 CR3: 00000001205f2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] debug_check_no_obj_freed+0x4b8/0x600 lib/debugobjects.c:1019 slab_free_hook mm/slub.c:2273 [inline] slab_free mm/slub.c:4579 [inline] kfree+0x294/0x480 mm/slub.c:4727 kvfree+0x47/0x50 mm/util.c:701 device_release+0xa1/0x240 drivers/base/core.c:2574 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e4/0x5a0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3780 free_netdev+0x4b7/0x670 net/core/dev.c:11259 usbnet_disconnect+0x25c/0x500 drivers/net/usb/usbnet.c:1652 usb_unbind_interface+0x1e2/0x960 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:569 [inline] device_remove+0x122/0x170 drivers/base/dd.c:561 __device_release_driver drivers/base/dd.c:1273 [inline] device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x396/0x9f0 drivers/base/core.c:3861 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304 hub_port_connect drivers/usb/core/hub.c:5361 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5903 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244