[v6.1] WARNING in cm109_input_open/usb_submit_urb (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 7b34dc04e4ff Linux 6.1.154
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=123dfae2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7eb38bd5021fec61
dashboard link: https://syzkaller.appspot.com/bug?extid=35c00f1182e1399f00b2
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1f1ed5df43e0/disk-7b34dc04.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/941b7c0f58be/vmlinux-7b34dc04.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6fb9bad299e4/bzImage-7b34dc04.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+35c00f...@syzkaller.appspotmail.com

input: CM109 USB driver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.8/input/input5
------------[ cut here ]------------
URB ffff8880177ce300 submitted while active
WARNING: CPU: 0 PID: 4759 at drivers/usb/core/urb.c:379 usb_submit_urb+0xff0/0x1910 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 0 PID: 4759 Comm: kworker/0:18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xff0/0x1910 drivers/usb/core/urb.c:379
Code: 41 2e 8b 89 ea e8 96 9b fa 03 e9 f7 fb ff ff e8 b6 23 6b fb c6 05 94 69 f5 07 01 48 c7 c7 20 3f 2e 8b 48 89 de e8 b0 4f 37 fb <0f> 0b e9 86 f0 ff ff e8 94 23 6b fb eb 21 e8 8d 23 6b fb 44 8b 6c
RSP: 0018:ffffc9000339ec40 EFLAGS: 00010246
RAX: dfe823e8a967c900 RBX: ffff8880177ce300 RCX: 0000000000100000
RDX: ffffc90019fa8000 RSI: 00000000000484aa RDI: 00000000000484ab
RBP: 000000000000000f R08: dffffc0000000000 R09: fffffbfff215c479
R10: fffffbfff215c479 R11: 1ffffffff215c478 R12: dffffc0000000000
R13: 0000000000000cc0 R14: ffff8880177ce308 R15: ffff888026d1a800
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f51eff8 CR3: 0000000078a5d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
cm109_input_open+0x1f7/0x460 drivers/input/misc/cm109.c:572
input_open_device+0x16c/0x2e0 drivers/input/input.c:650
kbd_connect+0xe9/0x130 drivers/tty/vt/keyboard.c:1593
input_attach_handler drivers/input/input.c:1060 [inline]
input_register_device+0xdfd/0x1310 drivers/input/input.c:2470
cm109_usb_probe+0x10e5/0x15b0 drivers/input/misc/cm109.c:806
usb_probe_interface+0x5a0/0xaf0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x2aa/0xc70 drivers/base/dd.c:639
__driver_probe_device+0x18c/0x330 drivers/base/dd.c:785
driver_probe_device+0x4f/0x420 drivers/base/dd.c:815
__device_attach_driver+0x2c6/0x510 drivers/base/dd.c:943
bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
__device_attach+0x29b/0x460 drivers/base/dd.c:1015
bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
device_add+0xa00/0xfb0 drivers/base/core.c:3697
usb_set_configuration+0x1991/0x1fd0 drivers/usb/core/message.c:2165
usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x139/0x270 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x2aa/0xc70 drivers/base/dd.c:639
__driver_probe_device+0x18c/0x330 drivers/base/dd.c:785
driver_probe_device+0x4f/0x420 drivers/base/dd.c:815
__device_attach_driver+0x2c6/0x510 drivers/base/dd.c:943
bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
__device_attach+0x29b/0x460 drivers/base/dd.c:1015
bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
device_add+0xa00/0xfb0 drivers/base/core.c:3697
usb_new_device+0xd4d/0x1620 drivers/usb/core/hub.c:2659
hub_port_connect drivers/usb/core/hub.c:5517 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
port_event drivers/usb/core/hub.c:5817 [inline]
hub_event+0x2d5e/0x54e0 drivers/usb/core/hub.c:5899
process_one_work+0x898/0x1160 kernel/workqueue.c:2292
worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>


---
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[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: 7b34dc04e4ff Linux 6.1.154
git tree: linux-6.1.y

console output: https://syzkaller.appspot.com/x/log.txt?x=113da6e2580000

kernel config: https://syzkaller.appspot.com/x/.config?x=7eb38bd5021fec61
dashboard link: https://syzkaller.appspot.com/bug?extid=35c00f1182e1399f00b2
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10046942580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1f1ed5df43e0/disk-7b34dc04.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/941b7c0f58be/vmlinux-7b34dc04.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6fb9bad299e4/bzImage-7b34dc04.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+35c00f...@syzkaller.appspotmail.com

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/input472
------------[ cut here ]------------
URB ffff8880196edd00 submitted while active
WARNING: CPU: 1 PID: 4445 at drivers/usb/core/urb.c:379 usb_submit_urb+0xff0/0x1910 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 1 PID: 4445 Comm: kworker/1:12 Not tainted syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xff0/0x1910 drivers/usb/core/urb.c:379
Code: 41 2e 8b 89 ea e8 96 9b fa 03 e9 f7 fb ff ff e8 b6 23 6b fb c6 05 94 69 f5 07 01 48 c7 c7 20 3f 2e 8b 48 89 de e8 b0 4f 37 fb <0f> 0b e9 86 f0 ff ff e8 94 23 6b fb eb 21 e8 8d 23 6b fb 44 8b 6c

RSP: 0018:ffffc90003516c40 EFLAGS: 00010246
RAX: c76e031590bcd200 RBX: ffff8880196edd00 RCX: ffff888026633b80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 000000000000000f R08: dffffc0000000000 R09: ffffed10171e4f34
R10: ffffed10171e4f34 R11: 1ffff110171e4f33 R12: dffffc0000000000
R13: 0000000000000cc0 R14: ffff8880196edd08 R15: ffff88807c580000
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 00007febfdb721e0 CR3: 000000002e315000 CR4: 00000000003506e0

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