linux-kernel - [syzbot] [usb?] WARNING: ODEBUG bug in usb_unbind

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Message-ID: <00000000000005a1e1061422a8f1@google.com>
Date: Wed, 20 Mar 2024 19:42:20 -0700
From: syzbot <syzbot+9665bf55b1c828bbcd8a@...kaller.appspotmail.com>
To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org, 
	linux-usb@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: [syzbot] [usb?] WARNING: ODEBUG bug in usb_unbind_interface (2)

Hello,

syzbot found the following issue on:

HEAD commit:    480e035fc4c7 Merge tag 'drm-next-2024-03-13' of https://gi..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=155b7959180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1e5b814e91787669
dashboard link: https://syzkaller.appspot.com/bug?extid=9665bf55b1c828bbcd8a
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/5f73b6ef963d/disk-480e035f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/46c949396aad/vmlinux-480e035f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e3b4d0f5a5f8/bzImage-480e035f.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9665bf55b1c828bbcd8a@...kaller.appspotmail.com

------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88807b455180 object type: work_struct hint: usbnet_deferred_kevent+0x0/0xb90 drivers/net/usb/usbnet.c:1589
WARNING: CPU: 0 PID: 5151 at lib/debugobjects.c:517 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514
Modules linked in:
CPU: 0 PID: 5151 Comm: kworker/0:3 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514
Code: e8 fb b9 4a fd 4c 8b 0b 48 c7 c7 20 dd fe 8b 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 eb 3e aa fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 8c d5 d9 0a 48 83 c4 10 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc900046e7278 EFLAGS: 00010286
RAX: cd024ab54396bd00 RBX: ffffffff8ba9ef40 RCX: 0000000000040000
RDX: ffffc90012937000 RSI: 000000000003b781 RDI: 000000000003b782
RBP: ffffffff8bfedea0 R08: ffffffff8157cc12 R09: fffffbfff1bf9650
R10: dffffc0000000000 R11: fffffbfff1bf9650 R12: 0000000000000000
R13: ffffffff8bfeddb8 R14: dffffc0000000000 R15: ffff88807b455180
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0e043ad988 CR3: 000000002a986000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __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:2078 [inline]
 slab_free mm/slub.c:4280 [inline]
 kfree+0x110/0x380 mm/slub.c:4390
 device_release+0x99/0x1c0
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 usb_unbind_interface+0x1d4/0x850 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x503/0x7c0 drivers/base/dd.c:1295
 bus_remove_device+0x34f/0x420 drivers/base/bus.c:574
 device_del+0x581/0xa30 drivers/base/core.c:3828
 usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1416
 usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2267
 hub_port_connect drivers/usb/core/hub.c:5323 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5623 [inline]
 port_event drivers/usb/core/hub.c:5783 [inline]
 hub_event+0x1e62/0x50f0 drivers/usb/core/hub.c:5865
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>


---
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