syzbot

WARNING: CPU: 0 PID: 4195 at fs/sysfs/group.c:281 sysfs_remove_group+0x179/0x2a0 fs/sysfs/group.c:279
Modules linked in:
CPU: 0 PID: 4195 Comm: kworker/0:1 Not tainted 5.15.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x179/0x2a0 fs/sysfs/group.c:279
Code: 8b 36 4c 89 e0 48 c1 e8 03 80 3c 28 00 74 08 4c 89 e7 e8 ca a1 cc ff 49 8b 14 24 48 c7 c7 c0 be b9 8a 4c 89 f6 e8 07 61 4e ff <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 a1 c6 82 ff
RSP: 0018:ffffc90002d8f940 EFLAGS: 00010246
RAX: f4699efd9db5e300 RBX: ffff88802bbed038 RCX: ffff888077201dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8166aa6c R09: ffffed10171c4f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802bbed008
R13: 1ffffffff1637f44 R14: ffffffff8b1bfa00 R15: ffff88807d3879f8
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd2f559d120 CR3: 0000000026581000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_del+0x2f1/0xbd0 drivers/base/core.c:3577
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:545 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:583 [inline]
 firmware_fallback_sysfs+0x9ab/0xc90 drivers/base/firmware_loader/fallback.c:659
 _request_firmware+0xc72/0x12c0 drivers/base/firmware_loader/main.c:876
 request_firmware_work_func+0x126/0x270 drivers/base/firmware_loader/main.c:1127
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>