syzbot

WARNING: CPU: 1 PID: 27 at fs/sysfs/group.c:284 sysfs_remove_group+0x178/0x2a0 fs/sysfs/group.c:282
Modules linked in:
CPU: 1 PID: 27 Comm: kworker/1:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x178/0x2a0 fs/sysfs/group.c:282
Code: 48 8b 1b 4c 89 f8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ff e8 fa 1d c9 ff 49 8b 17 48 c7 c7 40 b8 da 8a 48 89 de e8 d8 9c 3a ff <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 42 e6 70 ff
RSP: 0018:ffffc90000a2f800 EFLAGS: 00010246
RAX: 9d53df041efd4a00 RBX: ffffffff8b41be20 RCX: ffff88801ce79e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: dffffc0000000000 R08: ffffc90000a2f407 R09: 1ffff92000145e80
R10: dffffc0000000000 R11: fffff52000145e81 R12: 1ffffffff16837c8
R13: 0000000000000001 R14: ffff888077643d90 R15: ffff888078512008
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000028b3d8d50000 CR3: 0000000023bad000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 device_del+0x251/0x910 drivers/base/core.c:3847
 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+0x682/0x930 drivers/base/firmware_loader/fallback.c:234
 _request_firmware+0xf27/0x1510 drivers/base/firmware_loader/main.c:936
 request_firmware_work_func+0xb0/0x1b0 drivers/base/firmware_loader/main.c:1189
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2730
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2811
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>