WARNING in firmware_fallback

WARNING in firmware_fallback_sysfs
Status: upstream: reported C repro on 2021/03/04 08:20
Reported-by: syzbot+95f2e2439b97575ec3c0@syzkaller.appspotmail.com
First crash: 158d, last: 13d

Cause bisection: failed (bisect log)

Sample crash report:

------------[ cut here ]------------
sysfs group 'power' not found for kobject 'ueagle-atm!adi930.fw'
WARNING: CPU: 1 PID: 8652 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Modules linked in:
CPU: 1 PID: 8652 Comm: kworker/1:5 Not tainted 5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
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 37 48 8b 33 48 c7 c7 20 cf 7c 89 e8 6a 4b e5 06 <0f> 0b eb 98 e8 81 87 c8 ff e9 01 ff ff ff 48 89 df e8 74 87 c8 ff
RSP: 0018:ffffc900020bfaa8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff89db7f20 RCX: 0000000000000000
RDX: ffff88802d385580 RSI: ffffffff815e45a5 RDI: fffff52000417f47
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815de40e R11: 0000000000000000 R12: ffff88802a6c4008
R13: ffffffff89db84c0 R14: ffff888028858878 R15: ffff8880288588c0
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcb8f8d000 CR3: 000000001cfd9000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:837
 device_del+0x20c/0xd40 drivers/base/core.c:3489
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:543 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:581 [inline]
 firmware_fallback_sysfs+0x9fc/0xe10 drivers/base/firmware_loader/fallback.c:657
 _request_firmware+0xa80/0xe80 drivers/base/firmware_loader/main.c:833
 request_firmware_work_func+0xdd/0x230 drivers/base/firmware_loader/main.c:1079
 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (40):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce	2021/06/29 22:06	upstream	c54b245d0118	a4fccb01	.config	log	report	syz	C		WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/06/12 09:19	upstream	f21b807c3cf8	1ba81399	.config	log	report	syz	C		WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/03/25 04:03	linux-next	20f1b5f9c07c	607e3baf	.config	log	report	syz	C		WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/07/22 17:13	upstream	3d5895cd3517	302e51de	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/07/22 14:48	upstream	3d5895cd3517	302e51de	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/07/14 01:55	upstream	40226a3d96ef	fa0594c3	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/07/03 09:13	upstream	3dbdb38e2869	55aa55c2	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/06/22 09:43	upstream	13311e74253f	aba2b2fb	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/06/21 15:46	upstream	cba5e97280f5	aba2b2fb	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-root	2021/06/18 12:06	upstream	fd0aa1a4567d	aba2b2fb	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/05/20 19:38	upstream	c3d0e3fd41b7	c560a65d	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/30 01:56	upstream	d2b6f8a17919	77e2b668	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/04/23 16:01	upstream	18a3c5f7abfd	17f0b706	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/22 06:35	upstream	16fc44d6387e	2bc8999a	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/04/16 22:10	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-root	2021/04/16 20:03	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-root	2021/04/16 19:48	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/16 19:48	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/16 19:40	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/16 19:17	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/16 19:08	upstream	2f7b98d1e55c	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/09 16:03	upstream	4fa56ad0d12e	6a81331a	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/06 12:30	upstream	0a50438c8436	6a81331a	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/04/06 00:10	upstream	0a50438c8436	6a81331a	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-selinux-root	2021/04/03 20:47	upstream	57fbdb15ec42	6a81331a	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce	2021/03/24 03:21	upstream	7acac4b3196c	e613994b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-386	2021/06/09 17:59	upstream	368094df48e6	84fe5d96	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-386	2021/05/15 21:59	upstream	25a1298726e9	93f844de	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-386	2021/04/27 22:55	upstream	57fa2369ab17	805b5003	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-kasan-gce-386	2021/04/27 14:19	upstream	4a0225c3d208	805b5003	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-qemu2-arm64-mte	2021/02/28 08:13	upstream	5695e5161974	4c37c133	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/07/23 02:47	linux-next	7468cbf5c917	bc5f1d88	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/07/12 02:55	linux-next	db503865b9ba	8f5a7b8c	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/07/09 15:22	linux-next	92510a7fd93c	281e815f	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/06/25 20:23	linux-next	a1f92694393a	ae6bf8dd	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/06/09 18:52	linux-next	a1f92694393a	84fe5d96	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/05/09 16:49	linux-next	869a85b925fc	bc5434be	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/04/16 19:32	linux-next	1216f02e46a4	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/04/16 19:23	linux-next	1216f02e46a4	7e2b734b	.config	log	report			info	WARNING in firmware_fallback_sysfs
ci-upstream-linux-next-kasan-gce-root	2021/03/25 03:15	linux-next	20f1b5f9c07c	607e3baf	.config	log	report			info	WARNING in firmware_fallback_sysfs