usb 5-1: New USB device found, idVendor=0d8c, idProduct=000e, bcdDevice=8e.8f usb 5-1: New USB device strings: Mfr=0, Product=24, SerialNumber=3 usb 5-1: Product: syz usb 5-1: SerialNumber: syz usb 5-1: config 0 descriptor?? cm109 5-1:0.8: invalid payload size 0, expected 4 input: CM109 USB driver as /devices/platform/dummy_hcd.4/usb5/5-1/5-1:0.8/input/input6 list_add double add: new=ffff8880295fc018, prev=ffff8880295fc018, next=ffff888065a4b070. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:37! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 50 Comm: kworker/1:1 Not tainted 6.10.0-rc1-syzkaller-00304-g83814698cf48 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:__list_add_valid_or_report+0xa3/0xf0 lib/list_debug.c:35 Code: 39 f7 74 10 b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 c7 c7 00 f5 1f 8c 4c 89 fe 4c 89 e2 4c 89 f1 e8 0e 52 cc 06 90 <0f> 0b 48 c7 c7 00 f3 1f 8c e8 ff 51 cc 06 90 0f 0b 48 c7 c7 a0 f3 RSP: 0018:ffffc90000ba6988 EFLAGS: 00010046 RAX: 0000000000000058 RBX: ffff888065a4b078 RCX: 20d7973de3b19b00 RDX: ffffc90011ece000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff888065a4b078 R08: ffffffff8176812c R09: 1ffffffff1c65014 R10: dffffc0000000000 R11: fffffbfff1c65015 R12: ffff8880295fc018 R13: dffffc0000000000 R14: ffff888065a4b070 R15: ffff8880295fc018 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bfb8b59290 CR3: 0000000065ffa000 CR4: 00000000003506f0 DR0: 0000000000002800 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: __list_add_valid include/linux/list.h:88 [inline] __list_add include/linux/list.h:150 [inline] list_add_tail include/linux/list.h:183 [inline] usb_hcd_link_urb_to_ep+0x1b7/0x310 drivers/usb/core/hcd.c:1158 dummy_urb_enqueue+0x2dd/0x760 drivers/usb/gadget/udc/dummy_hcd.c:1286 usb_hcd_submit_urb+0x36c/0x1e80 drivers/usb/core/hcd.c:1533 cm109_input_open+0x1f9/0x470 drivers/input/misc/cm109.c:572 input_open_device+0x191/0x2e0 drivers/input/input.c:654 kbd_connect+0xe9/0x130 drivers/tty/vt/keyboard.c:1593 input_attach_handler drivers/input/input.c:1064 [inline] input_register_device+0xcf3/0x1090 drivers/input/input.c:2470 cm109_usb_probe+0x10cd/0x1600 drivers/input/misc/cm109.c:806 usb_probe_interface+0x645/0xbb0 drivers/usb/core/driver.c:399 really_probe+0x2b8/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x856/0xbf0 drivers/base/core.c:3721 usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254 usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:294 really_probe+0x2b8/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x856/0xbf0 drivers/base/core.c:3721 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2d6a/0x5150 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid_or_report+0xa3/0xf0 lib/list_debug.c:35 Code: 39 f7 74 10 b0 01 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 c7 c7 00 f5 1f 8c 4c 89 fe 4c 89 e2 4c 89 f1 e8 0e 52 cc 06 90 <0f> 0b 48 c7 c7 00 f3 1f 8c e8 ff 51 cc 06 90 0f 0b 48 c7 c7 a0 f3 RSP: 0018:ffffc90000ba6988 EFLAGS: 00010046 RAX: 0000000000000058 RBX: ffff888065a4b078 RCX: 20d7973de3b19b00 RDX: ffffc90011ece000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff888065a4b078 R08: ffffffff8176812c R09: 1ffffffff1c65014 R10: dffffc0000000000 R11: fffffbfff1c65015 R12: ffff8880295fc018 R13: dffffc0000000000 R14: ffff888065a4b070 R15: ffff8880295fc018 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bfb8b59290 CR3: 0000000065ffa000 CR4: 00000000003506f0 DR0: 0000000000002800 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400