syzkaller syzkaller login: [ 29.296020][ T1266] can: request_module (can-proto-0) failed. [ 29.322752][ T1266] can: request_module (can-proto-2) failed. [ 29.352743][ T1266] can: request_module (can-proto-0) failed. [ 29.383257][ T1266] can: request_module (can-proto-7) failed. [ 29.412044][ T1266] can: request_module (can-proto-0) failed. [ 29.440164][ T1266] can: request_module (can-proto-1) failed. Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. 2022/12/09 22:18:48 parsed 1 programs 2022/12/09 22:18:48 executed programs: 0 [ 60.524619][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 60.764599][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 60.884676][ T12] usb 1-1: config 0 has an invalid descriptor of length 36, skipping remainder of the config [ 60.896875][ T12] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0555, bcdDevice=69.6a [ 60.905953][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 60.919203][ T12] usb 1-1: config 0 descriptor?? [ 61.414767][ T12] usb 1-1: Found UVC 0.00 device (0bd3:0555) [ 61.421786][ T12] uvcvideo 1-1:0.0: Entity type for entity Й was not initialized! [ 61.430227][ T12] uvcvideo 1-1:0.0: Entity type for entity Input 255 was not initialized! [ 61.439097][ T12] ------------[ cut here ]------------ [ 61.444614][ T12] WARNING: CPU: 0 PID: 12 at drivers/media/mc/mc-entity.c:1024 media_create_pad_link+0x4fc/0x650 [ 61.455302][ T12] Modules linked in: [ 61.459274][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0 [ 61.469228][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.479378][ T12] Workqueue: usb_hub_wq hub_event [ 61.484427][ T12] RIP: 0010:media_create_pad_link+0x4fc/0x650 [ 61.490652][ T12] Code: bc ea ff ff ff eb da e8 62 3e 23 fd 0f 0b 41 bc ea ff ff ff eb cb e8 53 3e 23 fd 0f 0b 41 bc ea ff ff ff eb bc e8 44 3e 23 fd <0f> 0b 41 bc ea ff ff ff eb ad e8 35 3e 23 fd 0f 0b 41 bc ea ff ff [ 61.510484][ T12] RSP: 0018:ffffc900000ceeb0 EFLAGS: 00010293 [ 61.516615][ T12] RAX: 0000000000000000 RBX: ffff888113d20080 RCX: 0000000000000000 [ 61.524741][ T12] RDX: ffff8881002d54c0 RSI: ffffffff8423a17c RDI: 0000000000000007 [ 61.532915][ T12] RBP: ffff888113d20080 R08: 0000000000000007 R09: 0000000000000000 [ 61.540956][ T12] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 61.549052][ T12] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 61.557311][ T12] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 61.566881][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.573468][ T12] CR2: 000000000053c071 CR3: 000000010d260000 CR4: 00000000003506f0 [ 61.581558][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.589571][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.597809][ T12] Call Trace: [ 61.601378][ T12] [ 61.604400][ T12] uvc_mc_register_entities+0x5cd/0x910 [ 61.610140][ T12] uvc_probe.cold+0x1e40/0x2583 [ 61.615398][ T12] ? uvc_register_video_device+0x530/0x530 [ 61.621224][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.627348][ T12] usb_probe_interface+0x30b/0x7f0 [ 61.632547][ T12] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 61.638597][ T12] really_probe+0x249/0xb90 [ 61.643226][ T12] __driver_probe_device+0x1df/0x4d0 [ 61.648694][ T12] ? usb_match_id.part.0+0x15d/0x1b0 [ 61.654076][ T12] driver_probe_device+0x4c/0x1a0 [ 61.659239][ T12] __device_attach_driver+0x1d0/0x2e0 [ 61.664697][ T12] ? driver_allows_async_probing+0x170/0x170 [ 61.670800][ T12] bus_for_each_drv+0x15f/0x1e0 [ 61.675803][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 61.681035][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.686905][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 61.692319][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 61.698541][ T12] __device_attach+0x1e4/0x530 [ 61.703339][ T12] ? device_driver_attach+0x210/0x210 [ 61.708874][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 61.714192][ T12] bus_probe_device+0x1e4/0x290 [ 61.719209][ T12] device_add+0xbd5/0x1e90 [ 61.723759][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 61.730182][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.736048][ T12] usb_set_configuration+0x1019/0x1900 [ 61.741620][ T12] usb_generic_driver_probe+0xba/0x100 [ 61.747163][ T12] usb_probe_device+0xd4/0x2c0 [ 61.752072][ T12] ? usb_driver_release_interface+0x180/0x180 [ 61.758227][ T12] really_probe+0x249/0xb90 [ 61.762797][ T12] __driver_probe_device+0x1df/0x4d0 [ 61.768150][ T12] driver_probe_device+0x4c/0x1a0 [ 61.773221][ T12] __device_attach_driver+0x1d0/0x2e0 [ 61.778762][ T12] ? driver_allows_async_probing+0x170/0x170 [ 61.784785][ T12] bus_for_each_drv+0x15f/0x1e0 [ 61.789663][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 61.794844][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.800949][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 61.806424][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 61.812248][ T12] __device_attach+0x1e4/0x530 [ 61.817064][ T12] ? device_driver_attach+0x210/0x210 [ 61.822457][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 61.828088][ T12] bus_probe_device+0x1e4/0x290 [ 61.833058][ T12] device_add+0xbd5/0x1e90 [ 61.837534][ T12] ? usb_match_device+0xd4/0x550 [ 61.842711][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 61.849037][ T12] ? usb_detect_static_quirks+0x305/0x3b0 [ 61.854815][ T12] usb_new_device.cold+0x685/0x10ad [ 61.860516][ T12] ? hub_disconnect+0x510/0x510 [ 61.865455][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 61.870604][ T12] ? _raw_spin_unlock_irq+0x1f/0x40 [ 61.875833][ T12] hub_event+0x2d58/0x4810 [ 61.880454][ T12] ? hub_port_debounce+0x3b0/0x3b0 [ 61.885900][ T12] ? lock_release+0x810/0x810 [ 61.890744][ T12] ? lock_downgrade+0x6e0/0x6e0 [ 61.895723][ T12] ? do_raw_spin_lock+0x120/0x2a0 [ 61.900781][ T12] process_one_work+0x9bf/0x1710 [ 61.905771][ T12] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 61.911351][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 61.916439][ T12] ? _raw_spin_lock_irq+0x41/0x50 [ 61.921671][ T12] worker_thread+0x665/0x1080 [ 61.926626][ T12] ? __kthread_parkme+0x15f/0x220 [ 61.931722][ T12] ? process_one_work+0x1710/0x1710 [ 61.937075][ T12] kthread+0x2ea/0x3a0 [ 61.941178][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 61.946860][ T12] ret_from_fork+0x1f/0x30 [ 61.951314][ T12] [ 61.954355][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 61.961147][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0 [ 61.971302][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.981626][ T12] Workqueue: usb_hub_wq hub_event [ 61.986666][ T12] Call Trace: [ 61.990009][ T12] [ 61.992934][ T12] dump_stack_lvl+0xcd/0x134 [ 61.997637][ T12] panic+0x2c8/0x622 [ 62.001999][ T12] ? panic_print_sys_info.part.0+0x110/0x110 [ 62.008097][ T12] ? __warn.cold+0x24b/0x350 [ 62.013068][ T12] ? media_create_pad_link+0x4fc/0x650 [ 62.018616][ T12] __warn.cold+0x25c/0x350 [ 62.023133][ T12] ? media_create_pad_link+0x4fc/0x650 [ 62.028688][ T12] report_bug+0x1bc/0x210 [ 62.033031][ T12] handle_bug+0x3c/0x70 [ 62.037208][ T12] exc_invalid_op+0x14/0x40 [ 62.041737][ T12] asm_exc_invalid_op+0x16/0x20 [ 62.046613][ T12] RIP: 0010:media_create_pad_link+0x4fc/0x650 [ 62.052793][ T12] Code: bc ea ff ff ff eb da e8 62 3e 23 fd 0f 0b 41 bc ea ff ff ff eb cb e8 53 3e 23 fd 0f 0b 41 bc ea ff ff ff eb bc e8 44 3e 23 fd <0f> 0b 41 bc ea ff ff ff eb ad e8 35 3e 23 fd 0f 0b 41 bc ea ff ff [ 62.072780][ T12] RSP: 0018:ffffc900000ceeb0 EFLAGS: 00010293 [ 62.078842][ T12] RAX: 0000000000000000 RBX: ffff888113d20080 RCX: 0000000000000000 [ 62.086914][ T12] RDX: ffff8881002d54c0 RSI: ffffffff8423a17c RDI: 0000000000000007 [ 62.094892][ T12] RBP: ffff888113d20080 R08: 0000000000000007 R09: 0000000000000000 [ 62.102877][ T12] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 2022/12/09 22:19:00 executed programs: 1 [ 62.111052][ T12] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 62.119298][ T12] ? media_create_pad_link+0x4fc/0x650 [ 62.124965][ T12] uvc_mc_register_entities+0x5cd/0x910 [ 62.130571][ T12] uvc_probe.cold+0x1e40/0x2583 [ 62.135908][ T12] ? uvc_register_video_device+0x530/0x530 [ 62.141841][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 62.147684][ T12] usb_probe_interface+0x30b/0x7f0 [ 62.153015][ T12] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 62.158534][ T12] really_probe+0x249/0xb90 [ 62.163139][ T12] __driver_probe_device+0x1df/0x4d0 [ 62.168616][ T12] ? usb_match_id.part.0+0x15d/0x1b0 [ 62.174003][ T12] driver_probe_device+0x4c/0x1a0 [ 62.179326][ T12] __device_attach_driver+0x1d0/0x2e0 [ 62.184790][ T12] ? driver_allows_async_probing+0x170/0x170 [ 62.190763][ T12] bus_for_each_drv+0x15f/0x1e0 [ 62.195635][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 62.200670][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 62.206750][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 62.212049][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 62.218036][ T12] __device_attach+0x1e4/0x530 [ 62.222881][ T12] ? device_driver_attach+0x210/0x210 [ 62.228324][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 62.233634][ T12] bus_probe_device+0x1e4/0x290 [ 62.238611][ T12] device_add+0xbd5/0x1e90 [ 62.243030][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 62.249279][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 62.255791][ T12] usb_set_configuration+0x1019/0x1900 [ 62.261271][ T12] usb_generic_driver_probe+0xba/0x100 [ 62.266750][ T12] usb_probe_device+0xd4/0x2c0 [ 62.271875][ T12] ? usb_driver_release_interface+0x180/0x180 [ 62.277960][ T12] really_probe+0x249/0xb90 [ 62.282503][ T12] __driver_probe_device+0x1df/0x4d0 [ 62.287815][ T12] driver_probe_device+0x4c/0x1a0 [ 62.292875][ T12] __device_attach_driver+0x1d0/0x2e0 [ 62.298484][ T12] ? driver_allows_async_probing+0x170/0x170 [ 62.304696][ T12] bus_for_each_drv+0x15f/0x1e0 [ 62.309936][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 62.314979][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 62.321325][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 62.326718][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 62.332549][ T12] __device_attach+0x1e4/0x530 [ 62.337314][ T12] ? device_driver_attach+0x210/0x210 [ 62.342889][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 62.348285][ T12] bus_probe_device+0x1e4/0x290 [ 62.353147][ T12] device_add+0xbd5/0x1e90 [ 62.357733][ T12] ? usb_match_device+0xd4/0x550 [ 62.362752][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 62.368994][ T12] ? usb_detect_static_quirks+0x305/0x3b0 [ 62.375052][ T12] usb_new_device.cold+0x685/0x10ad [ 62.380454][ T12] ? hub_disconnect+0x510/0x510 [ 62.385397][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 62.390532][ T12] ? _raw_spin_unlock_irq+0x1f/0x40 [ 62.395820][ T12] hub_event+0x2d58/0x4810 [ 62.400415][ T12] ? hub_port_debounce+0x3b0/0x3b0 [ 62.405524][ T12] ? lock_release+0x810/0x810 [ 62.410222][ T12] ? lock_downgrade+0x6e0/0x6e0 [ 62.415108][ T12] ? do_raw_spin_lock+0x120/0x2a0 [ 62.420175][ T12] process_one_work+0x9bf/0x1710 [ 62.425138][ T12] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 62.430714][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 62.435737][ T12] ? _raw_spin_lock_irq+0x41/0x50 [ 62.440757][ T12] worker_thread+0x665/0x1080 [ 62.445442][ T12] ? __kthread_parkme+0x15f/0x220 [ 62.450754][ T12] ? process_one_work+0x1710/0x1710 [ 62.455969][ T12] kthread+0x2ea/0x3a0 [ 62.460043][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 62.466030][ T12] ret_from_fork+0x1f/0x30 [ 62.470742][ T12] [ 62.473812][ T12] Kernel Offset: disabled [ 62.478284][ T12] Rebooting in 86400 seconds..