usb 3-1: SerialNumber: syz
usb 3-1: config 0 descriptor??
cm109 3-1:0.8: invalid payload size 0, expected 4
input: CM109 USB driver as /devices/platform/dummy_hcd.2/usb3/3-1/3-1:0.8/input/input7
list_add double add: new=ffff888029b0aa18, prev=ffff888029b0aa18, next=ffff888011aa4078.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:37!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5585 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:__list_add_valid_or_report+0xa5/0x130 lib/list_debug.c:35
Code: 74 12 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d e9 52 a0 79 06 cc 48 c7 c7 60 5c ca 8b 4c 89 fe 4c 89 f2 48 89 d9 e8 bc ae 59 fc 90 <0f> 0b 48 c7 c7 40 5a ca 8b e8 ad ae 59 fc 90 0f 0b 48 c7 c7 00 5b
RSP: 0018:ffffc90004dfeb20 EFLAGS: 00010246
RAX: 0000000000000058 RBX: ffff888011aa4078 RCX: 8c01372cb9362100
RDX: ffffc9001b2e5000 RSI: 0000000000017050 RDI: 0000000000017051
RBP: 1ffff11002354810 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520009bfd15 R12: 1ffff11005361543
R13: dffffc0000000000 R14: ffff888029b0aa18 R15: ffff888029b0aa18
FS:  0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5841a4da08 CR3: 000000005564e000 CR4: 00000000003526f0
DR0: 0000000000000008 DR1: 0000000000000002 DR2: 0000000000000404
DR3: ffffffffefffff14 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:96 [inline]
 __list_add include/linux/list.h:158 [inline]
 list_add_tail include/linux/list.h:191 [inline]
 usb_hcd_link_urb_to_ep+0x1d2/0x330 drivers/usb/core/hcd.c:1154
 dummy_urb_enqueue+0x299/0x760 drivers/usb/gadget/udc/dummy_hcd.c:1310
 usb_hcd_submit_urb+0x322/0x1b40 drivers/usb/core/hcd.c:1542
 cm109_input_open+0x1fb/0x460 drivers/input/misc/cm109.c:566
 input_open_device+0x1f9/0x3b0 drivers/input/input.c:601
 kbd_connect+0xf6/0x150 drivers/tty/vt/keyboard.c:1640
 input_attach_handler drivers/input/input.c:1011 [inline]
 input_register_device+0xd08/0x1150 drivers/input/input.c:2398
 cm109_usb_probe+0x11e4/0x16f0 drivers/input/misc/cm109.c:797
 usb_probe_interface+0x653/0xc60 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x25b/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c7/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12d/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3772
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x25b/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c7/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12d/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3772
 usb_new_device+0x99a/0x1680 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5575 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5715 [inline]
 port_event drivers/usb/core/hub.c:5879 [inline]
 hub_event+0x28cf/0x4cf0 drivers/usb/core/hub.c:5961
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xa5/0x130 lib/list_debug.c:35
Code: 74 12 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d e9 52 a0 79 06 cc 48 c7 c7 60 5c ca 8b 4c 89 fe 4c 89 f2 48 89 d9 e8 bc ae 59 fc 90 <0f> 0b 48 c7 c7 40 5a ca 8b e8 ad ae 59 fc 90 0f 0b 48 c7 c7 00 5b
RSP: 0018:ffffc90004dfeb20 EFLAGS: 00010246
RAX: 0000000000000058 RBX: ffff888011aa4078 RCX: 8c01372cb9362100
RDX: ffffc9001b2e5000 RSI: 0000000000017050 RDI: 0000000000017051
RBP: 1ffff11002354810 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520009bfd15 R12: 1ffff11005361543
R13: dffffc0000000000 R14: ffff888029b0aa18 R15: ffff888029b0aa18
FS:  0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5841a4da08 CR3: 000000005564e000 CR4: 00000000003526f0
DR0: 0000000000000008 DR1: 0000000000000002 DR2: 0000000000000404
DR3: ffffffffefffff14 DR6: 00000000ffff0ff0 DR7: 0000000000000400