syzkaller syzkaller login: [ 28.591674][ T1265] can: request_module (can-proto-0) failed. [ 28.614076][ T1265] can: request_module (can-proto-2) failed. [ 28.641381][ T1265] can: request_module (can-proto-0) failed. [ 28.668603][ T1265] can: request_module (can-proto-7) failed. [ 28.696381][ T1265] can: request_module (can-proto-0) failed. [ 28.724720][ T1265] can: request_module (can-proto-1) failed. Warning: Permanently added '10.128.1.169' (ECDSA) to the list of known hosts. 2022/12/11 11:57:26 parsed 1 programs 2022/12/11 11:57:26 executed programs: 0 [ 59.657504][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 59.897487][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 60.017520][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 60.027895][ T12] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0555, bcdDevice=69.6a [ 60.036930][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 60.048778][ T12] usb 1-1: config 0 descriptor?? [ 60.777662][ T12] usb 1-1: Found UVC 0.00 device (0bd3:0555) [ 60.784702][ T12] uvcvideo 1-1:0.0: Entity type for entity ᠌ was not initialized! [ 60.793418][ T12] ------------[ cut here ]------------ [ 60.799335][ T12] WARNING: CPU: 0 PID: 12 at drivers/media/mc/mc-entity.c:1021 media_create_pad_link+0x4de/0x650 [ 60.809858][ T12] Modules linked in: [ 60.813764][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0 [ 60.823769][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 60.833877][ T12] Workqueue: usb_hub_wq hub_event [ 60.838958][ T12] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 60.845662][ T12] Code: 88 3e 23 fd 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 71 3e 23 fd 0f 0b 41 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 [ 60.865493][ T12] RSP: 0018:ffffc900000ceeb0 EFLAGS: 00010293 [ 60.871605][ T12] RAX: 0000000000000000 RBX: ffff888110d6e880 RCX: 0000000000000000 [ 60.879635][ T12] RDX: ffff8881002d54c0 RSI: ffffffff8423a15e RDI: 0000000000000002 [ 60.887650][ T12] RBP: ffff888110d6d880 R08: 0000000000000002 R09: 0000000000000000 [ 60.895615][ T12] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 60.903635][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888110d6d880 [ 60.911649][ T12] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 60.920630][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.927307][ T12] CR2: 00005606bce322d0 CR3: 00000001106c2000 CR4: 00000000003506f0 [ 60.935314][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.943349][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.951434][ T12] Call Trace: [ 60.954744][ T12] [ 60.957723][ T12] uvc_mc_register_entities+0x5cd/0x910 [ 60.963290][ T12] uvc_probe.cold+0x1e40/0x2583 [ 60.968184][ T12] ? uvc_register_video_device+0x530/0x530 [ 60.974000][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 60.979916][ T12] usb_probe_interface+0x30b/0x7f0 [ 60.985053][ T12] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 60.990476][ T12] really_probe+0x249/0xb90 [ 60.995088][ T12] __driver_probe_device+0x1df/0x4d0 [ 61.000759][ T12] ? usb_match_id.part.0+0x15d/0x1b0 [ 61.006063][ T12] driver_probe_device+0x4c/0x1a0 [ 61.011115][ T12] __device_attach_driver+0x1d0/0x2e0 [ 61.016589][ T12] ? driver_allows_async_probing+0x170/0x170 [ 61.022792][ T12] bus_for_each_drv+0x15f/0x1e0 [ 61.027687][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 61.032703][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.038534][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 61.043757][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 61.049699][ T12] __device_attach+0x1e4/0x530 [ 61.054480][ T12] ? device_driver_attach+0x210/0x210 [ 61.059882][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 61.065180][ T12] bus_probe_device+0x1e4/0x290 [ 61.070148][ T12] device_add+0xbd5/0x1e90 [ 61.074578][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 61.080853][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.086847][ T12] usb_set_configuration+0x1019/0x1900 [ 61.092431][ T12] usb_generic_driver_probe+0xba/0x100 [ 61.097919][ T12] usb_probe_device+0xd4/0x2c0 [ 61.102679][ T12] ? usb_driver_release_interface+0x180/0x180 [ 61.108769][ T12] really_probe+0x249/0xb90 [ 61.113354][ T12] __driver_probe_device+0x1df/0x4d0 [ 61.118772][ T12] driver_probe_device+0x4c/0x1a0 [ 61.123813][ T12] __device_attach_driver+0x1d0/0x2e0 [ 61.129228][ T12] ? driver_allows_async_probing+0x170/0x170 [ 61.135230][ T12] bus_for_each_drv+0x15f/0x1e0 [ 61.140116][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 61.145164][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.151081][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 61.156387][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 61.162249][ T12] __device_attach+0x1e4/0x530 [ 61.167019][ T12] ? device_driver_attach+0x210/0x210 [ 61.172421][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 61.177737][ T12] bus_probe_device+0x1e4/0x290 [ 61.182589][ T12] device_add+0xbd5/0x1e90 [ 61.187013][ T12] ? usb_match_device+0xd4/0x550 [ 61.191977][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 61.198253][ T12] ? usb_detect_static_quirks+0x305/0x3b0 [ 61.203962][ T12] usb_new_device.cold+0x685/0x10ad [ 61.209271][ T12] ? hub_disconnect+0x510/0x510 [ 61.214400][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 61.219376][ T12] ? _raw_spin_unlock_irq+0x1f/0x40 [ 61.224581][ T12] hub_event+0x2d58/0x4810 2022/12/11 11:57:38 executed programs: 1 [ 61.229029][ T12] ? hub_port_debounce+0x3b0/0x3b0 [ 61.234157][ T12] ? lock_release+0x810/0x810 [ 61.238907][ T12] ? lock_downgrade+0x6e0/0x6e0 [ 61.243813][ T12] ? do_raw_spin_lock+0x120/0x2a0 [ 61.248933][ T12] process_one_work+0x9bf/0x1710 [ 61.253904][ T12] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 61.260156][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 61.265136][ T12] ? _raw_spin_lock_irq+0x41/0x50 [ 61.270298][ T12] worker_thread+0x665/0x1080 [ 61.275002][ T12] ? __kthread_parkme+0x15f/0x220 [ 61.280159][ T12] ? process_one_work+0x1710/0x1710 [ 61.285387][ T12] kthread+0x2ea/0x3a0 [ 61.289579][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 61.295211][ T12] ret_from_fork+0x1f/0x30 [ 61.299668][ T12] [ 61.302686][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 61.309281][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0 [ 61.319176][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.329232][ T12] Workqueue: usb_hub_wq hub_event [ 61.334279][ T12] Call Trace: [ 61.337557][ T12] [ 61.340492][ T12] dump_stack_lvl+0xcd/0x134 [ 61.345092][ T12] panic+0x2c8/0x622 [ 61.349007][ T12] ? panic_print_sys_info.part.0+0x110/0x110 [ 61.355086][ T12] ? __warn.cold+0x24b/0x350 [ 61.359700][ T12] ? media_create_pad_link+0x4de/0x650 [ 61.365175][ T12] __warn.cold+0x25c/0x350 [ 61.369590][ T12] ? media_create_pad_link+0x4de/0x650 [ 61.375158][ T12] report_bug+0x1bc/0x210 [ 61.379541][ T12] handle_bug+0x3c/0x70 [ 61.383707][ T12] exc_invalid_op+0x14/0x40 [ 61.388248][ T12] asm_exc_invalid_op+0x16/0x20 [ 61.393095][ T12] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 61.399174][ T12] Code: 88 3e 23 fd 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 71 3e 23 fd 0f 0b 41 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 [ 61.418785][ T12] RSP: 0018:ffffc900000ceeb0 EFLAGS: 00010293 [ 61.424861][ T12] RAX: 0000000000000000 RBX: ffff888110d6e880 RCX: 0000000000000000 [ 61.432834][ T12] RDX: ffff8881002d54c0 RSI: ffffffff8423a15e RDI: 0000000000000002 [ 61.440798][ T12] RBP: ffff888110d6d880 R08: 0000000000000002 R09: 0000000000000000 [ 61.448853][ T12] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 61.456810][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888110d6d880 [ 61.464768][ T12] ? media_create_pad_link+0x4de/0x650 [ 61.470232][ T12] uvc_mc_register_entities+0x5cd/0x910 [ 61.475778][ T12] uvc_probe.cold+0x1e40/0x2583 [ 61.480718][ T12] ? uvc_register_video_device+0x530/0x530 [ 61.486514][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.492332][ T12] usb_probe_interface+0x30b/0x7f0 [ 61.497471][ T12] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 61.502842][ T12] really_probe+0x249/0xb90 [ 61.507350][ T12] __driver_probe_device+0x1df/0x4d0 [ 61.512643][ T12] ? usb_match_id.part.0+0x15d/0x1b0 [ 61.517931][ T12] driver_probe_device+0x4c/0x1a0 [ 61.522961][ T12] __device_attach_driver+0x1d0/0x2e0 [ 61.528333][ T12] ? driver_allows_async_probing+0x170/0x170 [ 61.534314][ T12] bus_for_each_drv+0x15f/0x1e0 [ 61.539162][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 61.544177][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.549990][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 61.555205][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 61.561104][ T12] __device_attach+0x1e4/0x530 [ 61.565881][ T12] ? device_driver_attach+0x210/0x210 [ 61.571983][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 61.577282][ T12] bus_probe_device+0x1e4/0x290 [ 61.582136][ T12] device_add+0xbd5/0x1e90 [ 61.586542][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 61.592788][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.598678][ T12] usb_set_configuration+0x1019/0x1900 [ 61.604143][ T12] usb_generic_driver_probe+0xba/0x100 [ 61.609621][ T12] usb_probe_device+0xd4/0x2c0 [ 61.614388][ T12] ? usb_driver_release_interface+0x180/0x180 [ 61.620710][ T12] really_probe+0x249/0xb90 [ 61.625207][ T12] __driver_probe_device+0x1df/0x4d0 [ 61.630596][ T12] driver_probe_device+0x4c/0x1a0 [ 61.635620][ T12] __device_attach_driver+0x1d0/0x2e0 [ 61.640996][ T12] ? driver_allows_async_probing+0x170/0x170 [ 61.647058][ T12] bus_for_each_drv+0x15f/0x1e0 [ 61.652001][ T12] ? bus_for_each_dev+0x1d0/0x1d0 [ 61.657046][ T12] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 61.662843][ T12] ? lockdep_hardirqs_on+0x79/0x100 [ 61.668029][ T12] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 61.673821][ T12] __device_attach+0x1e4/0x530 [ 61.678744][ T12] ? device_driver_attach+0x210/0x210 [ 61.684105][ T12] ? kobject_uevent_env+0x2a4/0x1620 [ 61.689380][ T12] bus_probe_device+0x1e4/0x290 [ 61.694316][ T12] device_add+0xbd5/0x1e90 [ 61.698737][ T12] ? usb_match_device+0xd4/0x550 [ 61.703765][ T12] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0 [ 61.709997][ T12] ? usb_detect_static_quirks+0x305/0x3b0 [ 61.715714][ T12] usb_new_device.cold+0x685/0x10ad [ 61.720905][ T12] ? hub_disconnect+0x510/0x510 [ 61.725755][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 61.730707][ T12] ? _raw_spin_unlock_irq+0x1f/0x40 [ 61.735995][ T12] hub_event+0x2d58/0x4810 [ 61.740403][ T12] ? hub_port_debounce+0x3b0/0x3b0 [ 61.745587][ T12] ? lock_release+0x810/0x810 [ 61.750253][ T12] ? lock_downgrade+0x6e0/0x6e0 [ 61.755195][ T12] ? do_raw_spin_lock+0x120/0x2a0 [ 61.760294][ T12] process_one_work+0x9bf/0x1710 [ 61.765481][ T12] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 61.770839][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 61.775765][ T12] ? _raw_spin_lock_irq+0x41/0x50 [ 61.780780][ T12] worker_thread+0x665/0x1080 [ 61.785561][ T12] ? __kthread_parkme+0x15f/0x220 [ 61.790609][ T12] ? process_one_work+0x1710/0x1710 [ 61.795805][ T12] kthread+0x2ea/0x3a0 [ 61.799866][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 61.805486][ T12] ret_from_fork+0x1f/0x30 [ 61.809912][ T12] [ 61.813066][ T12] Kernel Offset: disabled [ 61.817427][ T12] Rebooting in 86400 seconds..