syzbot

WARNING: CPU: 1 PID: 21 at fs/sysfs/group.c:278 sysfs_remove_group+0x12a/0x170 fs/sysfs/group.c:278
Modules linked in:
CPU: 1 PID: 21 Comm: kworker/1:0 Not tainted 6.4.0-rc4-syzkaller-00047-gafead42fdfca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x12a/0x170 fs/sysfs/group.c:278
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 00 50 5f 8a e8 86 21 3e ff <0f> 0b eb 98 e8 ed 35 c8 ff e9 01 ff ff ff 48 89 df e8 e0 35 c8 ff
RSP: 0018:ffffc900003cf9c0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff8acf1400 RCX: 0000000000000000
RDX: ffff88801a67c0c0 RSI: ffffffff814b2457 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801e80b008
R13: ffffffff8acf19a0 R14: 0000000000000000 R15: ffff88801e80b008
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc1a645a38 CR3: 0000000023690000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dpm_sysfs_remove+0x9b/0xb0 drivers/base/power/sysfs.c:837
 device_del+0x1a8/0xa30 drivers/base/core.c:3789
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:120 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline]
 firmware_fallback_sysfs+0x776/0xc10 drivers/base/firmware_loader/fallback.c:234
 _request_firmware+0xc67/0x1290 drivers/base/firmware_loader/main.c:909
 request_firmware_work_func+0xe1/0x240 drivers/base/firmware_loader/main.c:1160
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>