WARNING: CPU: 1 PID: 781 at lib/debugobjects.c:517 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514 Modules linked in: CPU: 1 PID: 781 Comm: kworker/1:2 Not tainted 6.9.0-syzkaller-09429-g61307b7be41a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514 Code: e8 0b 6d 43 fd 4c 8b 0b 48 c7 c7 20 c1 1f 8c 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 db ba 9f fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 4c 64 f4 0a 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 RSP: 0018:ffffc900033df258 EFLAGS: 00010282 RAX: 075618c24e9c4100 RBX: ffffffff8bc9e1a0 RCX: 0000000000040000 RDX: ffffc90015c79000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffffff8c1fc2a0 R08: ffffffff815857d2 R09: fffffbfff1c3996c R10: dffffc0000000000 R11: fffffbfff1c3996c R12: 0000000000000000 R13: ffffffff8c1fc1b8 R14: dffffc0000000000 R15: ffff8880473a5180 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1e96d5690 CR3: 000000007f060000 CR4: 0000000000350ef0 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] debug_check_no_obj_freed+0x45b/0x580 lib/debugobjects.c:1019 slab_free_hook mm/slub.c:2162 [inline] slab_free mm/slub.c:4436 [inline] kfree+0x10f/0x360 mm/slub.c:4557 device_release+0x9b/0x1c0 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x231/0x480 lib/kobject.c:737 usb_unbind_interface+0x260/0x940 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:568 [inline] __device_release_driver drivers/base/dd.c:1270 [inline] device_release_driver_internal+0x505/0x7c0 drivers/base/dd.c:1293 bus_remove_device+0x34f/0x420 drivers/base/bus.c:574 device_del+0x57a/0x9e0 drivers/base/core.c:3909 usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418 usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2305 hub_port_connect drivers/usb/core/hub.c:5362 [inline] hub_port_connect_change drivers/usb/core/hub.c:5662 [inline] port_event drivers/usb/core/hub.c:5822 [inline] hub_event+0x1eb9/0x5150 drivers/usb/core/hub.c:5904 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244