usb 3-1: SerialNumber: syz
ums-sddr09 3-1:1.0: USB Mass Storage device detected
------------[ cut here ]------------
proc_dir_entry 'scsi/ums-sddr09' already registered
WARNING: CPU: 0 PID: 3854 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376
Modules linked in:
CPU: 0 PID: 3854 Comm: kworker/0:8 Not tainted 6.1.23-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
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 3c cc ff 48 8b 55 00 48 c7 c7 00 82 fb 8a 48 89 de e8 89 b5 3e ff <0f> 0b 48 c7 c7 c0 30 07 8d e8 3b 51 74 08 48 8b 44 24 30 42 0f b6
RSP: 0018:ffffc90004b3eb28 EFLAGS: 00010246
RAX: cb7dd7b6c542a900 RBX: ffff8881408fac24 RCX: 0000000000040000
RDX: ffffc90014523000 RSI: 0000000000036c2e RDI: 0000000000036c2f
RBP: ffff88803d4aaad8 R08: ffffffff8152292e R09: ffffed1017304f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803d4aaa94
R13: 000000000000000a R14: dffffc0000000000 R15: ffff88803d4aaa00
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fac1ded2000 CR3: 0000000026edf000 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
 sddr09_probe+0xeb/0x2a0 drivers/usb/storage/sddr09.c:1754
 usb_probe_interface+0x5c0/0xaf0 drivers/usb/core/driver.c:396
 really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
 __driver_probe_device+0x1c3/0x3f0 drivers/base/dd.c:778
 driver_probe_device+0x50/0x420 drivers/base/dd.c:808
 __device_attach_driver+0x2cf/0x510 drivers/base/dd.c:936
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
 __device_attach+0x359/0x570 drivers/base/dd.c:1008
 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487
 device_add+0xb48/0xfd0 drivers/base/core.c:3664
 usb_set_configuration+0x19dd/0x2020 drivers/usb/core/message.c:2170
 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+0x1c3/0x3f0 drivers/base/dd.c:778
 driver_probe_device+0x50/0x420 drivers/base/dd.c:808
 __device_attach_driver+0x2cf/0x510 drivers/base/dd.c:936
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
 __device_attach+0x359/0x570 drivers/base/dd.c:1008
 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487
 device_add+0xb48/0xfd0 drivers/base/core.c:3664
 usb_new_device+0xbdd/0x18e0 drivers/usb/core/hub.c:2575
 hub_port_connect drivers/usb/core/hub.c:5355 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5499 [inline]
 port_event drivers/usb/core/hub.c:5655 [inline]
 hub_event+0x2d4d/0x57b0 drivers/usb/core/hub.c:5737
 process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
 worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
 kthread+0x268/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>