WARNING in ib_free_port

WARNING in ib_free_port_attrs
Status: upstream: reported on 2020/03/02 05:11
Reported-by: syzbot+e909641b84b5bc17ad8b@syzkaller.appspotmail.com
First crash: 161d, last: 14d

Sample crash report:

smc: removing ib device syz0
------------[ cut here ]------------
sysfs group 'pkeys' not found for kobject '1'
WARNING: CPU: 0 PID: 25 at fs/sysfs/group.c:279 sysfs_remove_group fs/sysfs/group.c:279 [inline]
WARNING: CPU: 0 PID: 25 at fs/sysfs/group.c:279 sysfs_remove_group+0x155/0x1b0 fs/sysfs/group.c:270
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 25 Comm: kworker/u4:2 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound ib_unregister_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:105 [inline]
 fixup_bug arch/x86/kernel/traps.c:100 [inline]
 do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:197
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:216
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:sysfs_remove_group fs/sysfs/group.c:279 [inline]
RIP: 0010:sysfs_remove_group+0x155/0x1b0 fs/sysfs/group.c:270
Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 20 47 3a 88 e8 b3 df 5c ff <0f> 0b eb 95 e8 02 f1 ca ff e9 d2 fe ff ff 48 89 df e8 f5 f0 ca ff
RSP: 0018:ffffc90000e27ba8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8880a10b3c78 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815d5ba7 RDI: fffff520001c4f67
RBP: 0000000000000000 R08: ffff8880a90380c0 R09: ffffed1015cc45f2
R10: ffff8880ae622f8b R11: ffffed1015cc45f1 R12: ffff8880a10b3c00
R13: ffffffff88c5b1e0 R14: ffff8880a10b3c08 R15: ffffed100a63f8d4
 ib_free_port_attrs+0x257/0x4f0 drivers/infiniband/core/sysfs.c:1322
 remove_one_compat_dev+0x4a/0x70 drivers/infiniband/core/device.c:939
 remove_compat_devs drivers/infiniband/core/device.c:951 [inline]
 disable_device+0x1ab/0x230 drivers/infiniband/core/device.c:1282
 __ib_unregister_device+0x91/0x180 drivers/infiniband/core/device.c:1437
 ib_unregister_work+0x15/0x30 drivers/infiniband/core/device.c:1547
 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x388/0x470 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (19):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Maintainers
ci-upstream-kasan-gce-root	2020/06/06 23:42	upstream	7ae77150	e6b89e4e	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-root	2020/04/30 04:17	upstream	1d2cc5ac	2dd552a5	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-kasan-gce-selinux-root	2020/03/31 03:03	upstream	673b41e0	c8d1cc20	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-this-kasan-gce	2020/05/21 22:31	net	d69100b8	1f30020f	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-this-kasan-gce	2020/04/22 16:53	net	b9663b7c	2e44d63e	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-this-kasan-gce	2020/04/11 23:19	net	9d859289	a8c6a3f8	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-this-kasan-gce	2020/03/05 02:05	net	3614d05b	c88c7b75	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/07/24 14:47	net-next	1b6687e3	554af388	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/07/16 15:32	net-next	8635764b	f3bec699	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/07/05 23:46	net-next	e44f65fd	51095195	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/07/03 04:41	net-next	23212a70	bed10395	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/07/03 03:06	net-next	23212a70	bed10395	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/06/26 13:33	net-next	cb8e59cc	aea82c00	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/06/01 23:16	net-next	1806c13d	a0331e89	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/05/27 21:35	net-next	dc0f3ed1	ec153193	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/04/07 07:35	net-next	1a323ea5	99a96044	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/03/28 16:31	net-next	1a147b74	f1ebdfba	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/03/06 11:09	net-next	3b3e808c	c88c7b75	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org
ci-upstream-net-kasan-gce	2020/02/28 23:48	net-next	c3e042f5	59b57593	.config	log	report	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org