usb 6-1: No valid video chain found. ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 0 PID: 1205 at kernel/locking/mutex.c:564 __mutex_lock_common kernel/locking/mutex.c:564 [inline] WARNING: CPU: 0 PID: 1205 at kernel/locking/mutex.c:564 __mutex_lock+0xed2/0x1010 kernel/locking/mutex.c:730 Modules linked in: CPU: 0 UID: 0 PID: 1205 Comm: kworker/0:2 Not tainted 6.13.0-syzkaller-07078-gb46c89c08f41 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:564 [inline] RIP: 0010:__mutex_lock+0xed2/0x1010 kernel/locking/mutex.c:730 Code: 0f b6 04 28 84 c0 0f 85 23 01 00 00 83 3d 89 61 2c 04 00 75 19 90 48 c7 c7 00 7b 0a 8c 48 c7 c6 a0 7b 0a 8c e8 bf c9 91 f5 90 <0f> 0b 90 90 90 e9 91 f2 ff ff 90 0f 0b 90 e9 16 f7 ff ff 90 0f 0b RSP: 0018:ffffc90003e768a0 EFLAGS: 00010246 RAX: e74a5c9aea128600 RBX: ffffc90003e76968 RCX: 0000000000100000 RDX: ffffc9001a38a000 RSI: 000000000001f49d RDI: 000000000001f49e RBP: ffffc90003e76a30 R08: ffffffff817ff9a2 R09: fffffbfff1cfa5a4 R10: dffffc0000000000 R11: fffffbfff1cfa5a4 R12: 1ffff920007ced28 R13: dffffc0000000000 R14: ffff888047a18518 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c35b373 CR3: 000000007a37e000 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+0x641/0xbb0 drivers/usb/core/driver.c:396 really_probe+0x2b9/0xad0 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:3665 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:291 really_probe+0x2b9/0xad0 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:3665 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651 hub_port_connect drivers/usb/core/hub.c:5523 [inline] hub_port_connect_change drivers/usb/core/hub.c:5663 [inline] port_event drivers/usb/core/hub.c:5823 [inline] hub_event+0x2d6d/0x5150 drivers/usb/core/hub.c:5905 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244