usb 2-1: string descriptor 0 read error: -71 uvcvideo: Found UVC 0.00 device (0bd3:0555) uvcvideo 2-1:0.0: Entity type for entity Output 1 was not initialized! ------------[ cut here ]------------ kernel BUG at drivers/media/mc/mc-entity.c:666! invalid opcode: 0000 [#1] SMP KASAN CPU: 1 PID: 3140 Comm: kworker/1:4 Not tainted 5.6.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:media_create_pad_link+0x40f/0x530 drivers/media/mc/mc-entity.c:666 Code: 83 45 3a 01 45 31 e4 e8 0f 9f 43 fd 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 f8 9e 43 fd 0f 0b e8 f1 9e 43 fd <0f> 0b e8 ea 9e 43 fd 0f 0b e8 53 68 6c fd e9 91 fc ff ff e8 49 68 RSP: 0018:ffff8881d5577028 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8881d947a070 RCX: ffffc9000cde7000 RDX: 0000000000040000 RSI: ffffffff83fbb92f RDI: 0000000000000000 RBP: ffff8881a8111870 R08: ffff8881d59c4980 R09: ffffed103a129291 R10: ffffed103a129290 R11: ffff8881d0949483 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005603fec4c750 CR3: 00000001d2574000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x468/0x77a drivers/media/usb/uvc/uvc_entity.c:114 uvc_register_chains drivers/media/usb/uvc/uvc_driver.c:2103 [inline] uvc_probe.cold+0x205c/0x2a51 drivers/media/usb/uvc/uvc_driver.c:2229 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374 really_probe+0x290/0xac0 drivers/base/dd.c:551 driver_probe_device+0x223/0x350 drivers/base/dd.c:724 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x217/0x390 drivers/base/dd.c:897 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1459/0x1bf0 drivers/base/core.c:2500 usb_set_configuration+0xece/0x1840 drivers/usb/core/message.c:2025 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272 really_probe+0x290/0xac0 drivers/base/dd.c:551 driver_probe_device+0x223/0x350 drivers/base/dd.c:724 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x217/0x390 drivers/base/dd.c:897 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1459/0x1bf0 drivers/base/core.c:2500 usb_new_device.cold+0x540/0xcd0 drivers/usb/core/hub.c:2548 hub_port_connect drivers/usb/core/hub.c:5195 [inline] hub_port_connect_change drivers/usb/core/hub.c:5335 [inline] port_event drivers/usb/core/hub.c:5481 [inline] hub_event+0x21cb/0x4300 drivers/usb/core/hub.c:5563 process_one_work+0x94b/0x1620 kernel/workqueue.c:2266 process_scheduled_works kernel/workqueue.c:2328 [inline] worker_thread+0x7ab/0xe20 kernel/workqueue.c:2414 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace ddb3ed51cb66ba10 ]--- RIP: 0010:media_create_pad_link+0x40f/0x530 drivers/media/mc/mc-entity.c:666 Code: 83 45 3a 01 45 31 e4 e8 0f 9f 43 fd 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 f8 9e 43 fd 0f 0b e8 f1 9e 43 fd <0f> 0b e8 ea 9e 43 fd 0f 0b e8 53 68 6c fd e9 91 fc ff ff e8 49 68 RSP: 0018:ffff8881d5577028 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8881d947a070 RCX: ffffc9000cde7000 RDX: 0000000000040000 RSI: ffffffff83fbb92f RDI: 0000000000000000 RBP: ffff8881a8111870 R08: ffff8881d59c4980 R09: ffffed103a129291 R10: ffffed103a129290 R11: ffff8881d0949483 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005603fec4c750 CR3: 00000001d2574000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400