WARNING: ODEBUG bug in netdev_run

WARNING: ODEBUG bug in netdev_run_todo
Status: upstream: reported syz repro on 2020/08/04 18:37
Reported-by: syzbot+f9484b345f41843fc9a9@syzkaller.appspotmail.com
First crash: 117d, last: 4h32m

Cause bisection: failed (bisect log)

similar bugs (2):
Kernel	Title	Repro	Bisected	Count	Last	Reported	Patched	Status
linux-4.19	WARNING: ODEBUG bug in netdev_run_todo	syz		16	1d05h	104d	0/1	upstream: reported syz repro on 2020/06/16 11:21
linux-4.14	WARNING: ODEBUG bug in netdev_run_todo			9	2d16h	112d	0/1	upstream: reported on 2020/06/08 15:34

Sample crash report:

------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x80 arch/x86/include/asm/paravirt.h:770
WARNING: CPU: 1 PID: 7875 at lib/debugobjects.c:488 debug_print_object lib/debugobjects.c:485 [inline]
WARNING: CPU: 1 PID: 7875 at lib/debugobjects.c:488 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
WARNING: CPU: 1 PID: 7875 at lib/debugobjects.c:488 debug_check_no_obj_freed+0x45c/0x640 lib/debugobjects.c:998
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 7875 Comm: kworker/u4:5 Not tainted 5.9.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d6/0x29e lib/dump_stack.c:118
 panic+0x2c0/0x800 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:debug_print_object lib/debugobjects.c:485 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
RIP: 0010:debug_check_no_obj_freed+0x45c/0x640 lib/debugobjects.c:998
Code: 74 08 4c 89 f7 e8 f4 f7 0f fe 4d 8b 06 48 c7 c7 33 9f 15 89 48 c7 c6 06 78 13 89 48 89 da 89 e9 4d 89 f9 31 c0 e8 54 d3 a1 fd <0f> 0b 48 ba 00 00 00 00 00 fc ff df ff 05 7e 7f ea 05 48 8b 5c 24
RSP: 0018:ffffc9000979fa10 EFLAGS: 00010046
RAX: c65d3bab62e9ed00 RBX: ffffffff8919a8bf RCX: ffff88809d1e2280
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff815e27d0 R09: ffffed1015d241c3
R10: ffffed1015d241c3 R11: 0000000000000000 R12: ffff888065de4474
R13: ffffffff8bac7cc8 R14: ffffffff89502e80 R15: ffffffff814c7d70
 kfree+0x105/0x200 mm/slab.c:3755
 device_release+0x70/0x1a0 drivers/base/core.c:1796
 kobject_cleanup lib/kobject.c:704 [inline]
 kobject_release lib/kobject.c:735 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1a0/0x2c0 lib/kobject.c:752
 netdev_run_todo+0xb17/0xc90 net/core/dev.c:10113
 default_device_exit_batch+0x66a/0x6b0 net/core/dev.c:10913
 ops_exit_list net/core/net_namespace.c:189 [inline]
 cleanup_net+0x79c/0xba0 net/core/net_namespace.c:603
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (662):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	VM info	Maintainers
ci-upstream-kasan-gce-smack-root	2020/09/06 22:37	upstream	dd9fb9bb	abf9ba4f	.config	log	report	syz		gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/08/11 13:42	upstream	00e4db51	bacaf5fa	.config	log	report	syz		gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/08/04 18:28	upstream	c0842fbc	80a06902	.config	log	report	syz		gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/29 00:14	upstream	fb0155a0	6bfdbe89	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/26 21:03	upstream	7c7ec322	2d5ea0cb	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/26 15:38	upstream	7c7ec322	2d5ea0cb	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/24 11:35	upstream	c9c9e6a4	54289b08	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/23 22:17	upstream	805c6d3c	287cd75a	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/23 12:02	upstream	805c6d3c	287cd75a	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/23 10:43	upstream	eff48dde	3e8f6c27	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/23 02:10	upstream	eff48dde	3e8f6c27	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/22 16:32	upstream	98477740	3e8f6c27	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/22 14:45	upstream	98477740	3e8f6c27	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/22 04:46	upstream	98477740	9e1fa68e	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-qemu-upstream	2020/09/21 21:15	upstream	98477740	9e1fa68e	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/21 13:02	upstream	ba4f184e	9e1fa68e	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/21 07:18	upstream	ba4f184e	9564d2e9	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/20 16:40	upstream	325d0eab	9564d2e9	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/20 08:56	upstream	325d0eab	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/20 05:00	upstream	325d0eab	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/19 18:39	upstream	eb5f95f1	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/19 12:29	upstream	eb5f95f1	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/19 09:02	upstream	eb5f95f1	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/19 02:23	upstream	92ab97ad	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/18 19:55	upstream	10b82d51	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/18 18:46	upstream	10b82d51	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/18 16:28	upstream	4cbffc46	38962c8b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/18 13:26	upstream	10b82d51	38962c8b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/18 10:12	upstream	4cbffc46	38962c8b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/17 19:24	upstream	5925fa68	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/17 10:14	upstream	5925fa68	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/17 06:51	upstream	5925fa68	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/17 03:28	upstream	5925fa68	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/17 01:02	upstream	5925fa68	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/15 23:36	upstream	fc4f28bb	6989d6f6	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/15 20:11	upstream	fc4f28bb	6989d6f6	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce	2020/09/15 17:54	upstream	fc4f28bb	6989d6f6	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/14 07:04	upstream	e4c26faa	2d3cdd63	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/09/14 04:34	upstream	e4c26faa	2d3cdd63	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/14 00:01	upstream	e4c26faa	2d3cdd63	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/09/12 17:40	upstream	729e3d09	ce441f06	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/06/03 10:29	upstream	1ee08de1	f3ba1b5b	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-386	2020/08/12 11:00	upstream	c636eef2	bb3e5fe6	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-qemu-upstream-386	2020/08/11 02:16	upstream	4bcf69e5	d3694ffb	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-bpf-kasan-gce	2020/09/17 16:33	bpf	642e450b	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-this-kasan-gce	2020/09/08 22:01	net	19162fd4	abf9ba4f	.config	log	report			gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/09/28 08:41	net-next	0675c285	6bfdbe89	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-bpf-next-kasan-gce	2020/09/27 12:36	bpf-next	ba5f4cfe	5dd8aee8	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-bpf-next-kasan-gce	2020/09/23 06:22	bpf-next	a8a71796	3e8f6c27	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-bpf-next-kasan-gce	2020/09/20 20:01	bpf-next	70b97111	9564d2e9	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/27 19:03	linux-next	d1d2220c	5dd8aee8	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/20 13:47	linux-next	b652d2a5	9564d2e9	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/20 03:20	linux-next	b652d2a5	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/20 01:46	linux-next	b652d2a5	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/19 17:28	linux-next	b652d2a5	53ce8104	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/17 22:14	linux-next	860461e4	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/17 02:15	linux-next	5fa35f24	8247808b	.config	log	report		info	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org