usb 2-1: [ueagle-atm] pre-firmware device, uploading firmware
usb 2-1: [ueagle-atm] loading firmware ueagle-atm/eagleI.fw
usb 2-1: USB disconnect, device number 4
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 4319 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 1 PID: 4319 at kernel/locking/mutex.c:582 __mutex_lock+0xa1c/0xae0 kernel/locking/mutex.c:747
Modules linked in:
CPU: 1 PID: 4319 Comm: kworker/1:6 Tainted: G S                 syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline]
RIP: 0010:__mutex_lock+0xa1c/0xae0 kernel/locking/mutex.c:747
Code: 04 20 84 c0 0f 85 b3 00 00 00 83 3d 85 22 e8 03 00 0f 85 f5 f6 ff ff 48 c7 c7 20 02 8c 8a 48 c7 c6 c0 02 8c 8a e8 34 9b 14 f7 <0f> 0b e9 db f6 ff ff 0f 0b e9 89 f9 ff ff 48 c7 c1 40 71 c1 96 80
RSP: 0018:ffffc900045ff440 EFLAGS: 00010246
RAX: 4ed452e306e05600 RBX: ffff8880296cf008 RCX: 0000000000100000
RDX: ffffc9001a22a000 RSI: 0000000000009b7f RDI: 0000000000009b80
RBP: ffffc900045ff598 R08: ffffc900045ff0c7 R09: 1ffff920008bfe18
R10: dffffc0000000000 R11: fffff520008bfe19 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888055f9f000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a1a48ad58 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usbatm_usb_disconnect+0x70/0x5d0 drivers/usb/atm/usbatm.c:1220
 uea_disconnect+0x1f8/0x2f0 drivers/usb/atm/ueagle-atm.c:2649
 usb_unbind_interface+0x203/0x870 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:549 [inline]
 __device_release_driver drivers/base/dd.c:1279 [inline]
 device_release_driver_internal+0x4cf/0x7c0 drivers/base/dd.c:1305
 bus_remove_device+0x2dd/0x400 drivers/base/bus.c:531
 device_del+0x63f/0xa80 drivers/base/core.c:3900
 usb_disable_device+0x3e7/0x8a0 drivers/usb/core/message.c:1472
 usb_disconnect+0x33c/0x8a0 drivers/usb/core/hub.c:2314
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
 port_event drivers/usb/core/hub.c:5817 [inline]
 hub_event+0x1d27/0x5200 drivers/usb/core/hub.c:5899
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 process_scheduled_works kernel/workqueue.c:2355 [inline]
 worker_thread+0xd6e/0x12a0 kernel/workqueue.c:2441
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>