usb 1-1: Found UVC 0.00 device (2833:0201) uvcvideo 1-1:0.0: Entity type for entity Output 1 was not initialized! uvcvideo 1-1:0.0: Entity type for entity Input 1 was not initialized! ------------[ cut here ]------------ WARNING: CPU: 1 PID: 26 at drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 Modules linked in: CPU: 1 UID: 0 PID: 26 Comm: kworker/1:1 Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 lr : media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 sp : ffff800097b76820 x29: ffff800097b76880 x28: ffff0000c8919080 x27: ffff0000c8919080 x26: 0000000000000003 x25: ffff0000c8919208 x24: ffff0000c89190c8 x23: 0000000000000001 x22: ffff0000c8919290 x21: 0000000000000000 x20: dfff800000000000 x19: 0000000000000001 x18: 00000000ffffffff x17: 6c616974696e6920 x16: ffff80008052cb50 x15: 0000000000000001 x14: 1fffe0001a05e285 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a05e286 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c1aebd00 x7 : ffff80008705e238 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000003 x3 : 0000000000000000 x2 : ffff0000c8919080 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 (P) uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x628/0x874 drivers/media/usb/uvc/uvc_entity.c:151 uvc_register_chains+0x370/0x468 drivers/media/usb/uvc/uvc_driver.c:2148 uvc_probe+0x762c/0x8094 drivers/media/usb/uvc/uvc_driver.c:2290 usb_probe_interface+0x584/0xa44 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x394/0x910 drivers/base/dd.c:657 __driver_probe_device+0x180/0x2d4 drivers/base/dd.c:799 driver_probe_device+0x78/0x330 drivers/base/dd.c:829 __device_attach_driver+0x290/0x4e0 drivers/base/dd.c:957 bus_for_each_drv+0x220/0x2b4 drivers/base/bus.c:462 __device_attach+0x26c/0x388 drivers/base/dd.c:1029 device_initial_probe+0x24/0x34 drivers/base/dd.c:1078 bus_probe_device+0x178/0x240 drivers/base/bus.c:537 device_add+0x71c/0xa60 drivers/base/core.c:3692 usb_set_configuration+0x1640/0x1bac drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8c/0x144 drivers/usb/core/generic.c:250 usb_probe_device+0x1a4/0x348 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x394/0x910 drivers/base/dd.c:657 __driver_probe_device+0x180/0x2d4 drivers/base/dd.c:799 driver_probe_device+0x78/0x330 drivers/base/dd.c:829 __device_attach_driver+0x290/0x4e0 drivers/base/dd.c:957 bus_for_each_drv+0x220/0x2b4 drivers/base/bus.c:462 __device_attach+0x26c/0x388 drivers/base/dd.c:1029 device_initial_probe+0x24/0x34 drivers/base/dd.c:1078 bus_probe_device+0x178/0x240 drivers/base/bus.c:537 device_add+0x71c/0xa60 drivers/base/core.c:3692 usb_new_device+0x7f0/0x1220 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2148/0x3cf0 drivers/usb/core/hub.c:5948 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:843 irq event stamp: 95134 hardirqs last enabled at (95133): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (95133): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (95134): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (94990): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (94990): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (94981): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- usb 1-1: Failed to create links for entity 1 usb 1-1: Failed to register entities (-22). usb 1-1: USB disconnect, device number 2 usb 1-1: new high-speed USB device number 10 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: New USB device found, idVendor=2833, idProduct=0201, bcdDevice=2a.d5 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? usb 1-1: string descriptor 0 read error: -71 usb 1-1: Found UVC 0.00 device (2833:0201) uvcvideo 1-1:0.0: Entity type for entity Output 1 was not initialized! uvcvideo 1-1:0.0: Entity type for entity Input 1 was not initialized! ------------[ cut here ]------------ WARNING: CPU: 1 PID: 26 at drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 Modules linked in: CPU: 1 UID: 0 PID: 26 Comm: kworker/1:1 Tainted: G W 6.16.0-rc5-syzkaller-gec4801305969 #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 lr : media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 sp : ffff800097b76820 x29: ffff800097b76880 x28: ffff0000d50ac880 x27: ffff0000d50ac880 x26: 0000000000000003 x25: ffff0000d50aca08 x24: ffff0000d50ac8c8 x23: 0000000000000001 x22: ffff0000d50aca90 x21: 0000000000000000 x20: dfff800000000000 x19: 0000000000000001 x18: 1fffe000337d8876 x17: 6c616974696e6920 x16: ffff80008052cb50 x15: 0000000000000001 x14: 1fffe0001a254885 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a254886 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c1aebd00 x7 : ffff80008705e238 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000003 x3 : 0000000000000000 x2 : ffff0000d50ac880 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: media_create_pad_link+0x8a8/0xa14 drivers/media/mc/mc-entity.c:1147 (P) uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x628/0x874 drivers/media/usb/uvc/uvc_entity.c:151 uvc_register_chains+0x370/0x468 drivers/media/usb/uvc/uvc_driver.c:2148 uvc_probe+0x762c/0x8094 drivers/media/usb/uvc/uvc_driver.c:2290 usb_probe_interface+0x584/0xa44 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x394/0x910 drivers/base/dd.c:657 __driver_probe_device+0x180/0x2d4 drivers/base/dd.c:799 driver_probe_device+0x78/0x330 drivers/base/dd.c:829 __device_attach_driver+0x290/0x4e0 drivers/base/dd.c:957 bus_for_each_drv+0x220/0x2b4 drivers/base/bus.c:462 __device_attach+0x26c/0x388 drivers/base/dd.c:1029 device_initial_probe+0x24/0x34 drivers/base/dd.c:1078 bus_probe_device+0x178/0x240 drivers/base/bus.c:537 device_add+0x71c/0xa60 drivers/base/core.c:3692 usb_set_configuration+0x1640/0x1bac drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8c/0x144 drivers/usb/core/generic.c:250 usb_probe_device+0x1a4/0x348 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x394/0x910 drivers/base/dd.c:657 __driver_probe_device+0x180/0x2d4 drivers/base/dd.c:799 driver_probe_device+0x78/0x330 drivers/base/dd.c:829 __device_attach_driver+0x290/0x4e0 drivers/base/dd.c:957 bus_for_each_drv+0x220/0x2b4 drivers/base/bus.c:462 __device_attach+0x26c/0x388 drivers/base/dd.c:1029 device_initial_probe+0x24/0x34 drivers/base/dd.c:1078 bus_probe_device+0x178/0x240 drivers/base/bus.c:537 device_add+0x71c/0xa60 drivers/base/core.c:3692 usb_new_device+0x7f0/0x1220 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2148/0x3cf0 drivers/usb/core/hub.c:5948 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:843 irq event stamp: 105292 hardirqs last enabled at (105291): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (105291): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (105292): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (104884): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (104884): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (104875): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- usb 1-1: Failed to create links for entity 1 usb 1-1: Failed to register entities (-22). usb 1-1: USB disconnect, device number 10 usb 1-1: new high-speed USB device number 11 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: New USB device found, idVendor=2833, idProduct=0201, bcdDevice=2a.d5 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor??