WARNING: ODEBUG bug in netdev_run

WARNING: ODEBUG bug in netdev_run_todo
Status: upstream: reported C repro on 2020/08/04 18:37
Reported-by: syzbot+f9484b345f41843fc9a9@syzkaller.appspotmail.com
First crash: 322d, last: 3h51m

Cause bisection: failed (bisect log)

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING: ODEBUG bug in netdev_run_todo	syz			84	14h51m	309d	0/1	upstream: reported syz repro on 2020/06/16 11:21
linux-4.14	WARNING: ODEBUG bug in netdev_run_todo	syz		error	24	2d16h	317d	0/1	upstream: reported syz repro on 2020/06/08 15:34

Sample crash report:

bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): Released all slaves
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:1601
WARNING: CPU: 0 PID: 25 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 60 97 c1 89 4c 89 ee 48 c7 c7 60 8b c1 89 e8 68 c4 f8 04 <0f> 0b 83 05 45 f1 f9 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc90000e17898 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff8880118b22c0 RSI: ffffffff815b80e5 RDI: fffff520001c2f05
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815b0e4e R11: 0000000000000000 R12: ffffffff896d69a0
R13: ffffffff89c191a0 R14: ffffffff81621150 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562596db1338 CR3: 000000000bc8e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __debug_check_no_obj_freed lib/debugobjects.c:987 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1018
 kfree+0xd1/0x2b0 mm/slab.c:3795
 kvfree+0x42/0x50 mm/util.c:616
 device_release+0x9f/0x240 drivers/base/core.c:2108
 kobject_cleanup lib/kobject.c:705 [inline]
 kobject_release lib/kobject.c:736 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1c8/0x540 lib/kobject.c:753
 netdev_run_todo+0x96a/0xdd0 net/core/dev.c:10475
 default_device_exit_batch+0x2ff/0x3c0 net/core/dev.c:11426
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:178
 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:595
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (1682):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2021/03/25 07:24	upstream	4ee998b0	607e3baf	.config	log	report	syz	C		WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/04/20 05:41	upstream	7af08140	4285c989	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/01/29 15:15	upstream	bec4c296	6593fd32	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-kasan-gce	2021/04/18 01:44	net-next	e7ad33fa	7e2b734b	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/03/28 11:22	linux-next	93129492	a8529b82	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2020/09/06 22:37	upstream	dd9fb9bb	abf9ba4f	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2020/08/11 13:42	upstream	00e4db51	bacaf5fa	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2020/08/04 18:28	upstream	c0842fbc	80a06902	.config	log	report	syz
ci-upstream-kasan-gce-386	2021/01/10 02:07	upstream	996e435f	2c1f2513	.config	log	report	syz
ci-upstream-net-kasan-gce	2020/12/24 10:55	net-next	3db1a3fa	c2c1d1dd	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2021/04/21 19:49	upstream	16fc44d6	95777977	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/21 12:22	upstream	1fe5501b	95777977	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/21 09:58	upstream	1fe5501b	95777977	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/04/21 03:47	upstream	1fe5501b	c0ced557	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/20 13:56	upstream	7af08140	c0ced557	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/20 11:54	upstream	7af08140	c0ced557	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/04/20 09:47	upstream	7af08140	4285c989	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/04/20 03:48	upstream	7af08140	4285c989	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/20 02:42	upstream	7af08140	4285c989	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/19 10:10	upstream	bf05bf16	50f523d7	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/19 08:54	upstream	bf05bf16	7e2b734b	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/19 04:23	upstream	bf05bf16	7e2b734b	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/18 09:57	upstream	c98ff1d0	7e2b734b	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/04/16 05:53	upstream	7e25f40e	c59079a6	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/15 21:26	upstream	7e25f40e	c59079a6	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/14 12:09	upstream	50987bec	3134b37f	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/13 05:39	upstream	89698bec	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/04/13 02:56	upstream	89698bec	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/12 02:07	upstream	7d900724	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/04/11 03:30	upstream	52e44129	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/11 02:20	upstream	52e44129	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/10 12:01	upstream	d4961772	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/04/10 09:33	upstream	d4961772	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/09 13:58	upstream	4fa56ad0	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/09 12:39	upstream	4fa56ad0	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/08 14:09	upstream	454859c5	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/04/08 08:01	upstream	3a229812	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/08 03:16	upstream	3a229812	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/08 01:35	upstream	3a229812	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/07 03:47	upstream	2d743660	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/05 20:51	upstream	0a50438c	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/04/05 19:22	upstream	0a50438c	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/04/05 03:35	upstream	e49d033b	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/04/04 02:17	upstream	57fbdb15	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-qemu-upstream	2021/03/11 09:00	upstream	280d542f	c2ca1f2a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-386	2021/04/19 18:09	upstream	bf05bf16	50f523d7	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-qemu-upstream-386	2021/04/19 01:16	upstream	5ffe04cc	7e2b734b	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/04/21 17:50	bpf	b0226542	95777977	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-this-kasan-gce	2021/04/16 07:11	net	4e39a072	c59079a6	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/04/12 10:33	bpf	afd0be72	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/04/12 04:09	bpf	afd0be72	bfeda1b1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/04/04 03:29	bpf	a14d273b	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/04/03 19:46	bpf	a14d273b	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-kasan-gce	2021/04/18 03:59	net-next	e7ad33fa	7e2b734b	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-kasan-gce	2021/04/15 06:59	net-next	652d3be2	fcdb12ba	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/04/13 23:32	bpf-next	db16c1fe	a184b83e	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-kasan-gce	2021/04/10 07:10	net-next	626b598a	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/04/07 01:51	bpf-next	928dc406	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/04/07 00:48	bpf-next	1e1032b0	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/04/06 02:08	bpf-next	1e1032b0	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/04/19 11:28	linux-next	1216f02e	50f523d7	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/04/16 13:05	linux-next	1216f02e	7e2b734b	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/04/09 23:21	linux-next	e99d8a84	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/04/06 17:07	linux-next	9c54130c	6a81331a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/01/17 14:07	upstream	0da0a8a0	813be542	.config	log	report			info
ci-upstream-kasan-gce-selinux-root	2020/06/03 10:29	upstream	1ee08de1	f3ba1b5b	.config	log	report