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: 416d, last: 6h08m

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			99	15d	402d	0/1	upstream: reported syz repro on 2020/06/16 11:21
linux-4.14	WARNING: ODEBUG bug in netdev_run_todo	syz		error	25	91d	410d	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 (1973):
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	4ee998b0ef8b	607e3baf	.config	log	report	syz	C		WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/06/25 10:26	upstream	4a09d388f2ab	0edbbe31	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/04/20 05:41	upstream	7af08140979a	4285c989	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/01/29 15:15	upstream	bec4c2968fce	6593fd32	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-kasan-gce	2021/04/18 01:44	net-next	e7ad33fa7bc5	7e2b734b	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/05/08 22:25	linux-next	869a85b925fc	bc5434be	.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	931294922e65	a8529b82	.config	log	report	syz			WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2020/09/06 22:37	upstream	dd9fb9bb3340	abf9ba4f	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2020/08/11 13:42	upstream	00e4db51259a	bacaf5fa	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2020/08/04 18:28	upstream	c0842fbc1b18	80a06902	.config	log	report	syz
ci-upstream-kasan-gce-386	2021/01/10 02:07	upstream	996e435fd401	2c1f2513	.config	log	report	syz
ci-upstream-net-kasan-gce	2020/12/24 10:55	net-next	3db1a3fa9880	c2c1d1dd	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2021/07/22 01:37	upstream	8cae8cd89f05	29c3f20f	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/07/21 19:30	upstream	8cae8cd89f05	29c3f20f	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/07/20 17:27	upstream	8cae8cd89f05	1b201b48	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-qemu-upstream	2021/07/19 20:47	upstream	2734d6c1b1a0	e6a17580	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/07/19 05:58	upstream	2734d6c1b1a0	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/07/18 02:16	upstream	ccbb22b9ab86	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/07/17 10:25	upstream	872f8edeb6bd	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/07/17 08:18	upstream	872f8edeb6bd	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-qemu-upstream	2021/07/15 23:16	upstream	dd9c7df94c1b	a44e4957	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/07/15 05:10	upstream	8096acd7442e	b9a2f64e	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/07/14 18:06	upstream	8096acd7442e	94e0b707	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/07/11 20:40	upstream	98f7fdced2e0	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/07/10 16:37	upstream	3dbdb38e2869	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-selinux-root	2021/07/10 13:17	upstream	3dbdb38e2869	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/07/08 17:46	upstream	3dbdb38e2869	1b20171a	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/07/08 08:50	upstream	3dbdb38e2869	95793bce	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/07/07 07:14	upstream	3dbdb38e2869	4846d5c1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-root	2021/07/07 03:27	upstream	3dbdb38e2869	cca78469	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/07/05 10:28	upstream	3dbdb38e2869	55aa55c2	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce	2021/07/02 05:45	upstream	e058a84bfddc	658ebc66	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-qemu-upstream-386	2021/07/22 23:50	upstream	9bead1b58c4c	bc5f1d88	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-qemu-upstream-386	2021/07/20 14:35	upstream	8cae8cd89f05	1b201b48	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-386	2021/07/03 13:36	upstream	3dbdb38e2869	55aa55c2	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/21 11:36	bpf	d6371c76e20d	1b201b48	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/19 23:17	bpf	d6371c76e20d	bc48c9ab	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/11 15:02	bpf	5d52c906f059	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/08 01:32	bpf	1d719254c139	95793bce	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/07 18:34	bpf	af0efa050caa	4846d5c1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/05 21:25	bpf	5a0ae9872d5c	55aa55c2	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/05 18:21	bpf	0fc4dcc13f09	55aa55c2	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/05 09:02	bpf	0fc4dcc13f09	55aa55c2	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-kasan-gce	2021/07/05 03:05	bpf	0fc4dcc13f09	55aa55c2	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-this-kasan-gce	2021/06/16 14:02	net	a4f0377db125	c06f97ad	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/24 04:41	bpf-next	da97553ec6e1	bc5f1d88	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/23 19:44	bpf-next	724f17b7d45d	bc5f1d88	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/20 20:55	bpf-next	08f71a1e39a1	1b201b48	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/18 22:11	bpf-next	78e4a955928e	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/16 21:24	bpf-next	c50524ec4e3a	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/16 02:29	bpf-next	75f0fc7b48ad	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/11 22:58	bpf-next	eff94154cc1a	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/10 17:42	bpf-next	eff94154cc1a	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/07 09:00	bpf-next	5e437416ff66	4846d5c1	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/06 16:58	bpf-next	dbe69e433722	6c4484eb	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-bpf-next-kasan-gce	2021/07/06 14:46	bpf-next	dbe69e433722	6c4484eb	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-net-kasan-gce	2021/06/28 08:03	net-next	ff8744b5eb11	9d2ab5df	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/24 03:04	linux-next	90d856e71443	bc5f1d88	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/23 11:27	linux-next	90d856e71443	bc5f1d88	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/22 13:08	linux-next	7468cbf5c917	302e51de	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/21 17:07	linux-next	b1347210b01d	29c3f20f	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/19 22:09	linux-next	c1a6d08348fc	bc48c9ab	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/19 12:16	linux-next	c1a6d08348fc	e6a17580	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/16 02:17	linux-next	c1a6d08348fc	f115ae98	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/12 05:45	linux-next	db503865b9ba	a4869c92	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/12 02:43	linux-next	db503865b9ba	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-linux-next-kasan-gce-root	2021/07/11 05:54	linux-next	92510a7fd93c	8f5a7b8c	.config	log	report			info	WARNING: ODEBUG bug in netdev_run_todo
ci-upstream-kasan-gce-smack-root	2021/01/17 14:07	upstream	0da0a8a0a0e1	813be542	.config	log	report			info
ci-upstream-kasan-gce-selinux-root	2020/06/03 10:29	upstream	1ee08de1e234	f3ba1b5b	.config	log	report