syzkaller syzkaller login: [ 38.701473][ T2508] can: request_module (can-proto-0) failed. [ 38.730421][ T2508] can: request_module (can-proto-2) failed. [ 38.756915][ T2508] can: request_module (can-proto-0) failed. [ 38.782283][ T2508] can: request_module (can-proto-7) failed. [ 38.811814][ T2508] can: request_module (can-proto-0) failed. [ 38.838047][ T2508] can: request_module (can-proto-1) failed. [ 39.390018][ T2508] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 39.878978][ T2508] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list Warning: Permanently added '10.128.10.31' (ED25519) to the list of known hosts. 2023/11/09 09:35:22 parsed 1 programs 2023/11/09 09:35:22 executed programs: 0 [ 71.715048][ T9] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 71.994860][ T9] usb 1-1: Using ep0 maxpacket: 8 [ 72.164958][ T9] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 72.175526][ T9] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0555, bcdDevice=69.6a [ 72.184891][ T9] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 72.196371][ T9] usb 1-1: config 0 descriptor?? [ 72.935242][ T9] usb 1-1: Found UVC 0.00 device (0bd3:0555) [ 72.942472][ T9] uvcvideo 1-1:0.0: Entity type for entity Output 255 was not initialized! [ 72.952717][ T9] ------------[ cut here ]------------ [ 72.958411][ T9] WARNING: CPU: 0 PID: 9 at drivers/media/mc/mc-entity.c:1083 media_create_pad_link+0x4e7/0x630 [ 72.969167][ T9] Modules linked in: [ 72.973089][ T9] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0 [ 72.983468][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 72.993688][ T9] Workqueue: usb_hub_wq hub_event [ 72.998797][ T9] RIP: 0010:media_create_pad_link+0x4e7/0x630 [ 73.004927][ T9] Code: db e8 4d 6b d3 fc 89 d8 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 37 6b d3 fc 0f 0b bb ea ff ff ff eb dc e8 29 6b d3 fc <0f> 0b eb f0 e8 20 6b d3 fc 0f 0b eb e7 e8 17 6b d3 fc 0f 0b eb de [ 73.025217][ T9] RSP: 0018:ffffc9000009efc0 EFLAGS: 00010293 [ 73.031495][ T9] RAX: 0000000000000000 RBX: ffff8881121b9080 RCX: ffffffff847a80f0 [ 73.039837][ T9] RDX: ffff888102a78000 RSI: ffffffff847a8557 RDI: 0000000000000002 [ 73.048557][ T9] RBP: ffff8881121b9880 R08: 0000000000000002 R09: 0000000000000000 [ 73.057110][ T9] R10: 0000000000000000 R11: ffffffff8ade1b98 R12: 0000000000000000 [ 73.066366][ T9] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 73.074726][ T9] FS: 0000000000000000(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 [ 73.083928][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.090667][ T9] CR2: 00007ffdc611df60 CR3: 00000001192b5000 CR4: 00000000003506f0 [ 73.098982][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.107112][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.115335][ T9] Call Trace: [ 73.119075][ T9] [ 73.122097][ T9] ? show_regs+0x8f/0xa0 [ 73.126576][ T9] ? __warn+0xe6/0x380 [ 73.130759][ T9] ? media_create_pad_link+0x4e7/0x630 [ 73.136430][ T9] ? report_bug+0x3bc/0x580 [ 73.141078][ T9] ? handle_bug+0x3c/0x70 [ 73.145754][ T9] ? exc_invalid_op+0x17/0x40 [ 73.150985][ T9] ? asm_exc_invalid_op+0x1a/0x20 [ 73.157141][ T9] ? media_create_pad_link+0x80/0x630 [ 73.162675][ T9] ? media_create_pad_link+0x4e7/0x630 [ 73.168387][ T9] ? media_create_pad_link+0x4e7/0x630 [ 73.174082][ T9] uvc_mc_register_entities+0x3a0/0xa90 [ 73.179909][ T9] uvc_probe+0x271a/0x4770 [ 73.184473][ T9] ? _raw_spin_unlock_irqrestore+0x4e/0x70 [ 73.190661][ T9] usb_probe_interface+0x307/0x930 [ 73.196075][ T9] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 73.201731][ T9] really_probe+0x234/0xc90 [ 73.206414][ T9] __driver_probe_device+0x1de/0x4b0 [ 73.211910][ T9] driver_probe_device+0x4c/0x1a0 [ 73.217028][ T9] __device_attach_driver+0x1d4/0x300 [ 73.222468][ T9] ? driver_probe_device+0x1a0/0x1a0 [ 73.228799][ T9] bus_for_each_drv+0x157/0x1d0 [ 73.233698][ T9] ? bus_for_each_dev+0x1d0/0x1d0 [ 73.238795][ T9] ? lockdep_hardirqs_on+0x7d/0x100 [ 73.244024][ T9] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 73.250128][ T9] __device_attach+0x1e8/0x4b0 [ 73.255054][ T9] ? device_driver_attach+0x200/0x200 [ 73.260523][ T9] ? do_raw_spin_unlock+0x173/0x230 [ 73.265771][ T9] bus_probe_device+0x17c/0x1c0 [ 73.270649][ T9] device_add+0x117e/0x1aa0 [ 73.275217][ T9] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 73.282109][ T9] usb_set_configuration+0x10cb/0x1c40 [ 73.287634][ T9] usb_generic_driver_probe+0xca/0x130 [ 73.293136][ T9] usb_probe_device+0xda/0x2c0 [ 73.298006][ T9] ? usb_driver_release_interface+0x190/0x190 [ 73.304405][ T9] really_probe+0x234/0xc90 [ 73.309150][ T9] __driver_probe_device+0x1de/0x4b0 [ 73.314462][ T9] ? usb_driver_applicable+0x1c4/0x220 [ 73.319976][ T9] driver_probe_device+0x4c/0x1a0 [ 73.325743][ T9] __device_attach_driver+0x1d4/0x300 [ 73.331116][ T9] ? driver_probe_device+0x1a0/0x1a0 [ 73.336441][ T9] bus_for_each_drv+0x157/0x1d0 [ 73.341405][ T9] ? bus_for_each_dev+0x1d0/0x1d0 [ 73.346475][ T9] ? lockdep_hardirqs_on+0x7d/0x100 [ 73.351790][ T9] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 73.357746][ T9] __device_attach+0x1e8/0x4b0 [ 73.362539][ T9] ? device_driver_attach+0x200/0x200 [ 73.368153][ T9] ? do_raw_spin_unlock+0x173/0x230 [ 73.373499][ T9] bus_probe_device+0x17c/0x1c0 [ 73.378574][ T9] device_add+0x117e/0x1aa0 2023/11/09 09:35:33 executed programs: 1 [ 73.383269][ T9] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 73.390158][ T9] ? usb_detect_static_quirks+0x335/0x3e0 [ 73.396064][ T9] usb_new_device+0xd80/0x19f0 [ 73.401375][ T9] ? hub_disconnect+0x520/0x520 [ 73.406581][ T9] hub_event+0x2e62/0x4f40 [ 73.411413][ T9] ? hub_port_debounce+0x3d0/0x3d0 [ 73.416656][ T9] ? lockdep_next_lockchain+0x11/0x30 [ 73.422341][ T9] ? lock_sync+0x190/0x190 [ 73.428857][ T9] ? reacquire_held_locks+0x4b0/0x4b0 [ 73.434463][ T9] process_one_work+0x884/0x15c0 [ 73.439941][ T9] ? hcd_died_work+0x60/0x60 [ 73.444946][ T9] ? init_worker_pool+0x770/0x770 [ 73.450460][ T9] ? assign_work+0x1a0/0x240 [ 73.455415][ T9] worker_thread+0x8b9/0x1290 [ 73.460571][ T9] ? __kthread_parkme+0x14b/0x220 [ 73.465731][ T9] ? process_one_work+0x15c0/0x15c0 [ 73.471826][ T9] kthread+0x33c/0x440 [ 73.476120][ T9] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.482233][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 73.488177][ T9] ret_from_fork+0x45/0x80 [ 73.492720][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 73.498703][ T9] ret_from_fork_asm+0x11/0x20 [ 73.503706][ T9] [ 73.506857][ T9] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 73.514501][ T9] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0 [ 73.524002][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 73.534055][ T9] Workqueue: usb_hub_wq hub_event [ 73.539079][ T9] Call Trace: [ 73.542360][ T9] [ 73.545285][ T9] dump_stack_lvl+0xd9/0x1b0 [ 73.549883][ T9] panic+0x6dc/0x790 [ 73.553775][ T9] ? panic_smp_self_stop+0xa0/0xa0 [ 73.558883][ T9] ? show_trace_log_lvl+0x363/0x4f0 [ 73.564254][ T9] ? check_panic_on_warn+0x1f/0xb0 [ 73.569536][ T9] ? media_create_pad_link+0x4e7/0x630 [ 73.574991][ T9] check_panic_on_warn+0xab/0xb0 [ 73.579925][ T9] __warn+0xf2/0x380 [ 73.583900][ T9] ? media_create_pad_link+0x4e7/0x630 [ 73.589351][ T9] report_bug+0x3bc/0x580 [ 73.593678][ T9] handle_bug+0x3c/0x70 [ 73.597844][ T9] exc_invalid_op+0x17/0x40 [ 73.602344][ T9] asm_exc_invalid_op+0x1a/0x20 [ 73.607189][ T9] RIP: 0010:media_create_pad_link+0x4e7/0x630 [ 73.613268][ T9] Code: db e8 4d 6b d3 fc 89 d8 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 37 6b d3 fc 0f 0b bb ea ff ff ff eb dc e8 29 6b d3 fc <0f> 0b eb f0 e8 20 6b d3 fc 0f 0b eb e7 e8 17 6b d3 fc 0f 0b eb de [ 73.633682][ T9] RSP: 0018:ffffc9000009efc0 EFLAGS: 00010293 [ 73.639751][ T9] RAX: 0000000000000000 RBX: ffff8881121b9080 RCX: ffffffff847a80f0 [ 73.648028][ T9] RDX: ffff888102a78000 RSI: ffffffff847a8557 RDI: 0000000000000002 [ 73.656170][ T9] RBP: ffff8881121b9880 R08: 0000000000000002 R09: 0000000000000000 [ 73.664321][ T9] R10: 0000000000000000 R11: ffffffff8ade1b98 R12: 0000000000000000 [ 73.672372][ T9] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 73.680340][ T9] ? media_create_pad_link+0x80/0x630 [ 73.685798][ T9] ? media_create_pad_link+0x4e7/0x630 [ 73.691265][ T9] uvc_mc_register_entities+0x3a0/0xa90 [ 73.696814][ T9] uvc_probe+0x271a/0x4770 [ 73.701225][ T9] ? _raw_spin_unlock_irqrestore+0x4e/0x70 [ 73.707031][ T9] usb_probe_interface+0x307/0x930 [ 73.712257][ T9] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 73.717624][ T9] really_probe+0x234/0xc90 [ 73.722123][ T9] __driver_probe_device+0x1de/0x4b0 [ 73.727401][ T9] driver_probe_device+0x4c/0x1a0 [ 73.732418][ T9] __device_attach_driver+0x1d4/0x300 [ 73.737849][ T9] ? driver_probe_device+0x1a0/0x1a0 [ 73.743148][ T9] bus_for_each_drv+0x157/0x1d0 [ 73.748014][ T9] ? bus_for_each_dev+0x1d0/0x1d0 [ 73.753144][ T9] ? lockdep_hardirqs_on+0x7d/0x100 [ 73.758346][ T9] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 73.764259][ T9] __device_attach+0x1e8/0x4b0 [ 73.769032][ T9] ? device_driver_attach+0x200/0x200 [ 73.774798][ T9] ? do_raw_spin_unlock+0x173/0x230 [ 73.780279][ T9] bus_probe_device+0x17c/0x1c0 [ 73.785395][ T9] device_add+0x117e/0x1aa0 [ 73.789894][ T9] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 73.796822][ T9] usb_set_configuration+0x10cb/0x1c40 [ 73.802380][ T9] usb_generic_driver_probe+0xca/0x130 [ 73.807852][ T9] usb_probe_device+0xda/0x2c0 [ 73.812727][ T9] ? usb_driver_release_interface+0x190/0x190 [ 73.818841][ T9] really_probe+0x234/0xc90 [ 73.823347][ T9] __driver_probe_device+0x1de/0x4b0 [ 73.828667][ T9] ? usb_driver_applicable+0x1c4/0x220 [ 73.834572][ T9] driver_probe_device+0x4c/0x1a0 [ 73.839602][ T9] __device_attach_driver+0x1d4/0x300 [ 73.845005][ T9] ? driver_probe_device+0x1a0/0x1a0 [ 73.850393][ T9] bus_for_each_drv+0x157/0x1d0 [ 73.855360][ T9] ? bus_for_each_dev+0x1d0/0x1d0 [ 73.860489][ T9] ? lockdep_hardirqs_on+0x7d/0x100 [ 73.865789][ T9] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 73.871805][ T9] __device_attach+0x1e8/0x4b0 [ 73.876854][ T9] ? device_driver_attach+0x200/0x200 [ 73.882314][ T9] ? do_raw_spin_unlock+0x173/0x230 [ 73.887513][ T9] bus_probe_device+0x17c/0x1c0 [ 73.892375][ T9] device_add+0x117e/0x1aa0 [ 73.896979][ T9] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 73.904169][ T9] ? usb_detect_static_quirks+0x335/0x3e0 [ 73.910067][ T9] usb_new_device+0xd80/0x19f0 [ 73.914848][ T9] ? hub_disconnect+0x520/0x520 [ 73.919696][ T9] hub_event+0x2e62/0x4f40 [ 73.924178][ T9] ? hub_port_debounce+0x3d0/0x3d0 [ 73.929393][ T9] ? lockdep_next_lockchain+0x11/0x30 [ 73.934864][ T9] ? lock_sync+0x190/0x190 [ 73.939309][ T9] ? reacquire_held_locks+0x4b0/0x4b0 [ 73.944705][ T9] process_one_work+0x884/0x15c0 [ 73.949744][ T9] ? hcd_died_work+0x60/0x60 [ 73.954341][ T9] ? init_worker_pool+0x770/0x770 [ 73.959371][ T9] ? assign_work+0x1a0/0x240 [ 73.964117][ T9] worker_thread+0x8b9/0x1290 [ 73.969086][ T9] ? __kthread_parkme+0x14b/0x220 [ 73.974468][ T9] ? process_one_work+0x15c0/0x15c0 [ 73.979759][ T9] kthread+0x33c/0x440 [ 73.983832][ T9] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.989112][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 73.994790][ T9] ret_from_fork+0x45/0x80 [ 73.999321][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 74.005048][ T9] ret_from_fork_asm+0x11/0x20 [ 74.009844][ T9] [ 74.013243][ T9] Kernel Offset: disabled [ 74.017729][ T9] Rebooting in 86400 seconds..