usb 1-1: SerialNumber: syz usb-storage 1-1:1.117: USB Mass Storage device detected usb-storage 1-1:1.46: USB Mass Storage device detected usb-storage 1-1:1.149: USB Mass Storage device detected usb 1-1: Found UVC 0.00 device syz (12d1:1439) usb 1-1: No valid video chain found. ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 5840 at kernel/locking/mutex.c:564 __mutex_lock_common kernel/locking/mutex.c:564 [inline] WARNING: CPU: 1 PID: 5840 at kernel/locking/mutex.c:564 __mutex_lock+0xdac/0xee0 kernel/locking/mutex.c:735 Modules linked in: CPU: 1 UID: 0 PID: 5840 Comm: kworker/1:3 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:564 [inline] RIP: 0010:__mutex_lock+0xdac/0xee0 kernel/locking/mutex.c:735 Code: 0f b6 04 38 84 c0 0f 85 1a 01 00 00 83 3d ef e4 54 04 00 75 19 90 48 c7 c7 60 c2 0a 8c 48 c7 c6 00 c3 0a 8c e8 35 14 8f f5 90 <0f> 0b 90 90 90 e9 c7 f3 ff ff 90 0f 0b 90 e9 29 f8 ff ff 90 0f 0b RSP: 0018:ffffc900035a6940 EFLAGS: 00010246 RAX: f4af8e89acf6aa00 RBX: ffff88802732e518 RCX: ffff888035509e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900035a6ad0 R08: ffffffff815687d2 R09: fffffbfff1cfa8a0 R10: dffffc0000000000 R11: fffffbfff1cfa8a0 R12: 0000000000000000 R13: 0000000000000000 R14: 1ffff920006b4d3c R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005601ae6a8978 CR3: 000000007a0b8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: class_mutex_constructor include/linux/mutex.h:201 [inline] uvc_status_suspend drivers/media/usb/uvc/uvc_status.c:375 [inline] uvc_status_unregister+0x2f/0xe0 drivers/media/usb/uvc/uvc_status.c:297 uvc_unregister_video+0x12b/0x200 drivers/media/usb/uvc/uvc_driver.c:1977 uvc_probe+0x9154/0x98e0 drivers/media/usb/uvc/uvc_driver.c:2302 usb_probe_interface+0x645/0xbb0 drivers/usb/core/driver.c:399 really_probe+0x2b8/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:534 device_add+0x856/0xbf0 drivers/base/core.c:3672 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:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:534 device_add+0x856/0xbf0 drivers/base/core.c:3672 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+0x2d6d/0x5150 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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