------------[ cut here ]------------
proc_dir_entry 'scsi/ums-datafab' already registered
WARNING: CPU: 0 PID: 3610 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376
Modules linked in:
CPU: 0 PID: 3610 Comm: kworker/0:7 Not tainted 6.1.80-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:proc_register+0x347/0x4e0 fs/proc/generic.c:376
Code: 7c 24 08 4c 8b 64 24 28 48 8b 6c 24 20 74 08 48 89 ef e8 dc da cb ff 48 8b 55 00 48 c7 c7 80 c2 fb 8a 48 89 de e8 19 62 3c ff <0f> 0b 48 c7 c7 80 92 27 8d e8 bb aa 7d 08 48 8b 44 24 30 42 0f b6
RSP: 0018:ffffc9000476eb68 EFLAGS: 00010246
RAX: 616864ea35bc8400 RBX: ffff888144256864 RCX: 0000000000040000
RDX: ffffc9001210d000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff88802874e498 R08: ffffffff81527e8e R09: fffff520008edccd
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802874e454
R13: 000000000000000b R14: dffffc0000000000 R15: ffff88802874e3c0
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc9c64d0300 CR3: 000000005b518000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _proc_mkdir fs/proc/generic.c:498 [inline]
 proc_mkdir_data fs/proc/generic.c:507 [inline]
 proc_mkdir+0x138/0x180 fs/proc/generic.c:521
 scsi_proc_hostdir_add+0xc5/0x150 drivers/scsi/scsi_proc.c:108
 scsi_host_alloc+0xa26/0xe70 drivers/scsi/hosts.c:521
 usb_stor_probe1+0x46/0x1a50 drivers/usb/storage/usb.c:952
 datafab_probe+0xed/0x230 drivers/usb/storage/datafab.c:728
 usb_probe_interface+0x5c0/0xaf0 drivers/usb/core/driver.c:396
 really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
 driver_probe_device+0x50/0x420 drivers/base/dd.c:815
 __device_attach_driver+0x2cf/0x510 drivers/base/dd.c:943
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
 __device_attach+0x359/0x570 drivers/base/dd.c:1015
 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487
 device_add+0xb48/0xfd0 drivers/base/core.c:3671
 usb_set_configuration+0x19dd/0x2020 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x84/0x140 drivers/usb/core/generic.c:238
 usb_probe_device+0x130/0x260 drivers/usb/core/driver.c:293
 really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
 driver_probe_device+0x50/0x420 drivers/base/dd.c:815
 __device_attach_driver+0x2cf/0x510 drivers/base/dd.c:943
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
 __device_attach+0x359/0x570 drivers/base/dd.c:1015
 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487
 device_add+0xb48/0xfd0 drivers/base/core.c:3671
 usb_new_device+0xbdd/0x18f0 drivers/usb/core/hub.c:2605
 hub_port_connect drivers/usb/core/hub.c:5456 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5596 [inline]
 port_event drivers/usb/core/hub.c:5752 [inline]
 hub_event+0x2efe/0x5730 drivers/usb/core/hub.c:5834
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 process_scheduled_works kernel/workqueue.c:2355 [inline]
 worker_thread+0xd04/0x1200 kernel/workqueue.c:2441
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>