WARNING: CPU: 1 PID: 6723 at lib/debugobjects.c:509 debug_print_object+0x194/0x2c0 lib/debugobjects.c:509 Modules linked in: CPU: 1 PID: 6723 Comm: kworker/1:4 Not tainted 6.2.0-rc4-syzkaller-00077-gd368967cb103 #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 20 cd a6 8a 50 4c 89 ee 48 c7 c7 e0 c0 a6 8a e8 ec 01 b0 05 <0f> 0b 58 83 05 2e ad 63 0a 01 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e RSP: 0018:ffffc9000b7f7520 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8166822c RDI: fffff520016fee96 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a4b7120 R13: ffffffff8aa6c5e0 R14: ffff888029ca2130 R15: ffffffff8151ac60 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020078000 CR3: 000000002944c000 CR4: 00000000003506e0 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/0x3b0 mm/slub.c:3800 kvfree+0x46/0x50 mm/util.c:627 device_release+0xa3/0x240 drivers/base/core.c:2331 kobject_cleanup lib/kobject.c:673 [inline] kobject_release lib/kobject.c:704 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c2/0x4d0 lib/kobject.c:721 put_device+0x1f/0x30 drivers/base/core.c:3586 free_netdev+0x43c/0x620 net/core/dev.c:10733 usbnet_disconnect+0x270/0x300 drivers/net/usb/usbnet.c:1632 usb_unbind_interface+0x1dc/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:1253 [inline] device_release_driver_internal+0x4a5/0x700 drivers/base/dd.c:1279 bus_remove_device+0x2e7/0x5a0 drivers/base/bus.c:529 device_del+0x4f7/0xc80 drivers/base/core.c:3666 usb_disable_device+0x35a/0x7b0 drivers/usb/core/message.c:1420 usb_disconnect.cold+0x259/0x6ed drivers/usb/core/hub.c:2235 hub_port_connect drivers/usb/core/hub.c:5244 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x1fb5/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308