Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 33.463417][ T4416] cgroup: Unknown subsys name 'perf_event' [ 33.470651][ T4416] cgroup: Unknown subsys name 'net_cls' [ 37.507856][ T4401] can: request_module (can-proto-0) failed. [ 37.520013][ T4401] can: request_module (can-proto-2) failed. [ 37.531561][ T4401] can: request_module (can-proto-0) failed. [ 37.543994][ T4401] can: request_module (can-proto-7) failed. [ 37.556043][ T4401] can: request_module (can-proto-0) failed. [ 37.568004][ T4401] can: request_module (can-proto-1) failed. Warning: Permanently added '10.128.0.231' (ECDSA) to the list of known hosts. 2021/01/08 14:11:23 parsed 1 programs 2021/01/08 14:11:25 executed programs: 0 [ 47.293200][ T5021] cgroup: Unknown subsys name 'perf_event' [ 47.299857][ T5021] cgroup: Unknown subsys name 'net_cls' [ 47.348856][ T5023] cgroup: Unknown subsys name 'perf_event' [ 47.364894][ T5023] cgroup: Unknown subsys name 'net_cls' [ 47.454528][ T5035] cgroup: Unknown subsys name 'perf_event' [ 47.461660][ T5035] cgroup: Unknown subsys name 'net_cls' [ 47.476118][ T5041] cgroup: Unknown subsys name 'perf_event' [ 47.477376][ T5039] cgroup: Unknown subsys name 'perf_event' [ 47.487636][ T5041] cgroup: Unknown subsys name 'net_cls' [ 47.502773][ T5043] cgroup: Unknown subsys name 'perf_event' [ 47.535533][ T5039] cgroup: Unknown subsys name 'net_cls' [ 47.544743][ T5043] cgroup: Unknown subsys name 'net_cls' [ 59.358613][ T32] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 59.618630][ T32] usb 4-1: Using ep0 maxpacket: 16 [ 59.669713][ T55] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 59.748755][ T32] usb 4-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 59.766057][ T32] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 59.777581][ T32] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 59.787550][ T32] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 0 [ 59.797320][ T32] usb 4-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 59.878758][ T7720] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 59.899367][ T32] usb 4-1: New USB device found, idVendor=2040, idProduct=b138, bcdDevice= 1.42 [ 59.908766][ T32] usb 4-1: New USB device strings: Mfr=4, Product=0, SerialNumber=0 [ 59.916785][ T32] usb 4-1: Manufacturer: syz [ 59.928687][ T55] usb 5-1: Using ep0 maxpacket: 16 [ 59.955184][ T32] usb 4-1: config 0 descriptor?? [ 59.960773][ T7719] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 59.968672][ T7751] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 60.048646][ T55] usb 5-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 60.059456][ T55] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 60.070557][ T55] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 60.080506][ T55] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 0 [ 60.090224][ T55] usb 5-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 60.128509][ T7760] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 60.148935][ T7720] usb 1-1: Using ep0 maxpacket: 16 [ 60.178604][ T55] usb 5-1: New USB device found, idVendor=2040, idProduct=b138, bcdDevice= 1.42 [ 60.187697][ T55] usb 5-1: New USB device strings: Mfr=4, Product=0, SerialNumber=0 [ 60.195867][ T55] usb 5-1: Manufacturer: syz [ 60.202812][ T55] usb 5-1: config 0 descriptor?? [ 60.228480][ T7719] usb 6-1: Using ep0 maxpacket: 16 [ 60.233782][ T7751] usb 3-1: Using ep0 maxpacket: 16 [ 60.258832][ T32] rc_core: IR keymap rc-hauppauge not found [ 60.265274][ T32] Registered IR keymap rc-empty [ 60.270932][ T32] mceusb 4-1:0.0: Error: mce write submit urb error = -90 [ 60.278974][ T7720] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 60.291321][ T7720] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 60.305868][ T7720] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 60.316483][ T7720] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 0 [ 60.326381][ T7720] usb 1-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 60.339758][ T32] mceusb 4-1:0.0: Error: mce write submit urb error = -90 [ 60.369291][ T32] rc rc0: Conexant Hybrid TV (cx231xx) MCE IR no TX (2040:b138) as /devices/platform/dummy_hcd.3/usb4/4-1/4-1:0.0/rc/rc0 [ 60.383746][ T32] input: Conexant Hybrid TV (cx231xx) MCE IR no TX (2040:b138) as /devices/platform/dummy_hcd.3/usb4/4-1/4-1:0.0/rc/rc0/input5 [ 60.404253][ T7760] usb 2-1: Using ep0 maxpacket: 16 [ 60.409496][ T7751] usb 3-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 60.419937][ T7719] usb 6-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 60.430575][ T7720] usb 1-1: New USB device found, idVendor=2040, idProduct=b138, bcdDevice= 1.42 [ 60.439721][ T7720] usb 1-1: New USB device strings: Mfr=4, Product=0, SerialNumber=0 [ 60.447763][ T7720] usb 1-1: Manufacturer: syz [ 60.455270][ T7751] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 60.466408][ T7751] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 60.476358][ T7751] usb 3-1: config 0 interface 0 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 0 [ 60.486195][ T7751] usb 3-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 60.500390][ T32] mceusb 4-1:0.0: Error: mce write submit urb error = -90 [ 60.507955][ T7719] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 60.519030][ C1] ================================================================================ [ 60.519116][ C1] UBSAN: shift-out-of-bounds in drivers/media/rc/mceusb.c:704:13 [ 60.519139][ C1] shift exponent 230 is too large for 32-bit type 'unsigned int' [ 60.519158][ C1] CPU: 1 PID: 7719 Comm: kworker/1:3 Not tainted 5.11.0-rc2-syzkaller #0 [ 60.519187][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.519206][ C1] Workqueue: usb_hub_wq hub_event [ 60.519238][ C1] Call Trace: [ 60.519246][ C1] [ 60.519254][ C1] dump_stack+0x107/0x163 [ 60.519284][ C1] ubsan_epilogue+0xb/0x5a [ 60.519311][ C1] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 60.519346][ C1] ? lockdep_hardirqs_on_prepare+0x3f0/0x3f0 [ 60.519378][ C1] mceusb_dev_printdata.cold+0x19/0x1e [ 60.519412][ C1] ? kcov_remote_start+0xb6/0x400 [ 60.519438][ C1] mceusb_dev_recv+0x3cb/0x1990 [ 60.519467][ C1] ? mceusb_tx_ir+0x760/0x760 [ 60.519493][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 60.519524][ C1] usb_hcd_giveback_urb+0x38c/0x430 [ 60.519552][ C1] dummy_timer+0x11f4/0x32a0 [ 60.519587][ C1] ? lock_chain_count+0x20/0x20 [ 60.519616][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 60.519648][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 60.519681][ C1] call_timer_fn+0x1a5/0x690 [ 60.519713][ C1] ? timer_fixup_init+0x60/0x60 [ 60.519739][ C1] ? lockdep_hardirqs_on_prepare+0x129/0x3f0 [ 60.519773][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 60.519800][ C1] __run_timers.part.0+0x692/0xa50 [ 60.519828][ C1] ? call_timer_fn+0x690/0x690 [ 60.519854][ C1] ? lapic_next_event+0x4d/0x80 [ 60.519879][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 60.519907][ C1] ? clockevents_program_event+0x12b/0x3b0 [ 60.519934][ C1] ? mark_held_locks+0x9f/0xe0 [ 60.519962][ C1] run_timer_softirq+0x80/0x120 [ 60.519992][ C1] __do_softirq+0x1b7/0x9c5 [ 60.520023][ C1] asm_call_irq_on_stack+0xf/0x20 [ 60.520055][ C1] [ 60.520064][ C1] do_softirq_own_stack+0x80/0xa0 [ 60.520095][ C1] __irq_exit_rcu+0x119/0x1b0 [ 60.520127][ C1] irq_exit_rcu+0x5/0x10 [ 60.520155][ C1] sysvec_apic_timer_interrupt+0x43/0xa0 [ 60.520185][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 60.520215][ C1] RIP: 0010:console_unlock+0x809/0xbf0 [ 60.520247][ C1] Code: 00 95 58 87 e8 e8 9b fd ff e8 a3 3f 00 00 31 ff 4c 89 ee e8 99 92 16 00 4d 85 ed 0f 85 23 02 00 00 e8 9b 8a 16 00 ff 34 24 9d <8b> 5c 24 34 31 ff 89 de e8 0a 92 16 00 85 db 0f 84 98 f9 ff ff e8 [ 60.520274][ C1] RSP: 0018:ffffc90000c472e0 EFLAGS: 00000293 [ 60.520306][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 60.520323][ C1] RDX: ffff8881011e3380 RSI: ffffffff8129c995 RDI: ffffffff8129cbbd [ 60.520342][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8a0305e7 [ 60.520360][ C1] R10: fffffbfff14060bc R11: 0000000000000000 R12: ffffffff82cd28c0 [ 60.520379][ C1] R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90000c47340 [ 60.520397][ C1] ? netconsole_netdev_event+0x340/0x340 [ 60.520429][ C1] ? console_unlock+0x805/0xbf0 [ 60.520458][ C1] ? console_unlock+0xa2d/0xbf0 [ 60.520489][ C1] ? devkmsg_read+0x750/0x750 [ 60.520518][ C1] ? lock_release+0x6e0/0x6e0 [ 60.520546][ C1] ? dev_vprintk_emit+0x36e/0x3b2 [ 60.520578][ C1] vprintk_emit+0x191/0x3e0 [ 60.520621][ C1] dev_vprintk_emit+0x36e/0x3b2 [ 60.520651][ C1] ? dev_attr_show.cold+0x3a/0x3a [ 60.520680][ C1] dev_printk_emit+0xba/0xf1 [ 60.520709][ C1] ? dev_vprintk_emit+0x3b2/0x3b2 [ 60.520738][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 60.520770][ C1] ? lock_chain_count+0x20/0x20 [ 60.520798][ C1] ? lock_acquire+0x288/0x710 [ 60.520825][ C1] __dev_printk+0xcf/0xf5 [ 60.520853][ C1] _dev_warn+0xd7/0x109 [ 60.520881][ C1] ? dev_err_probe.cold+0x21/0x21 [ 60.520910][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 60.520939][ C1] ? unpoison_range+0x3a/0x60 [ 60.520966][ C1] usb_get_configuration.cold+0x36b/0x14bb [ 60.521000][ C1] ? usb_destroy_configuration+0x710/0x710 [ 60.521034][ C1] ? usb_new_device+0xee/0x7a0 [ 60.521056][ C1] ? mark_held_locks+0x9f/0xe0 [ 60.521079][ C1] ? lockdep_hardirqs_on_prepare+0x286/0x3f0 [ 60.521103][ C1] usb_new_device+0x42c/0x7a0 [ 60.521123][ C1] ? __mutex_unlock_slowpath+0xe2/0x610 [ 60.521157][ C1] ? hub_disconnect+0x510/0x510 [ 60.521183][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 60.521214][ C1] ? lockdep_hardirqs_on_prepare+0x286/0x3f0 [ 60.521244][ C1] hub_event+0x2348/0x42d0 [ 60.521270][ C1] ? hub_port_debounce+0x3b0/0x3b0 [ 60.521296][ C1] ? mark_held_locks+0xc1/0xe0 [ 60.521322][ C1] ? init_rescuer+0x280/0x350 [ 60.521352][ C1] ? lock_release+0x6e0/0x6e0 [ 60.521381][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 60.521407][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 60.521433][ C1] process_one_work+0x98d/0x15c0 [ 60.521464][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 60.521496][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 60.521526][ C1] worker_thread+0x64c/0x1120 [ 60.521558][ C1] ? process_one_work+0x15c0/0x15c0 [ 60.521589][ C1] kthread+0x38c/0x460 [ 60.521614][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 60.521639][ C1] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 60.521668][ C1] ret_from_fork+0x1f/0x30 [ 60.521694][ C1] ================================================================================ [ 60.521707][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 60.521718][ C1] CPU: 1 PID: 7719 Comm: kworker/1:3 Not tainted 5.11.0-rc2-syzkaller #0 [ 60.521745][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.521766][ C1] Workqueue: usb_hub_wq hub_event [ 60.521791][ C1] Call Trace: [ 60.521799][ C1] [ 60.521807][ C1] dump_stack+0x107/0x163 [ 60.521833][ C1] panic+0x343/0x77f [ 60.521858][ C1] ? __warn_printk+0xf3/0xf3 [ 60.521881][ C1] ? ret_from_fork+0x1f/0x30 [ 60.521904][ C1] ? ubsan_epilogue+0x3e/0x5a [ 60.521927][ C1] ubsan_epilogue+0x54/0x5a [ 60.521952][ C1] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 60.521979][ C1] ? lockdep_hardirqs_on_prepare+0x3f0/0x3f0 [ 60.522009][ C1] mceusb_dev_printdata.cold+0x19/0x1e [ 60.522038][ C1] ? kcov_remote_start+0xb6/0x400 [ 60.522069][ C1] mceusb_dev_recv+0x3cb/0x1990 [ 60.522115][ C1] ? mceusb_tx_ir+0x760/0x760 [ 60.522141][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 60.522168][ C1] usb_hcd_giveback_urb+0x38c/0x430 [ 60.522196][ C1] dummy_timer+0x11f4/0x32a0 [ 60.522229][ C1] ? lock_chain_count+0x20/0x20 [ 60.522258][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 60.522291][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 60.522321][ C1] call_timer_fn+0x1a5/0x690 [ 60.522353][ C1] ? timer_fixup_init+0x60/0x60 [ 60.522385][ C1] ? lockdep_hardirqs_on_prepare+0x129/0x3f0 [ 60.522418][ C1] ? dummy_dequeue+0x4c0/0x4c0 [ 60.522451][ C1] __run_timers.part.0+0x692/0xa50 [ 60.522485][ C1] ? call_timer_fn+0x690/0x690 [ 60.522516][ C1] ? lapic_next_event+0x4d/0x80 [ 60.522541][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 60.522569][ C1] ? clockevents_program_event+0x12b/0x3b0 [ 60.522595][ C1] ? mark_held_locks+0x9f/0xe0 [ 60.522622][ C1] run_timer_softirq+0x80/0x120 [ 60.522654][ C1] __do_softirq+0x1b7/0x9c5 [ 60.522683][ C1] asm_call_irq_on_stack+0xf/0x20 [ 60.522714][ C1] [ 60.522722][ C1] do_softirq_own_stack+0x80/0xa0 [ 60.522761][ C1] __irq_exit_rcu+0x119/0x1b0 [ 60.522793][ C1] irq_exit_rcu+0x5/0x10 [ 60.522822][ C1] sysvec_apic_timer_interrupt+0x43/0xa0 [ 60.522852][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 60.522879][ C1] RIP: 0010:console_unlock+0x809/0xbf0 [ 60.522910][ C1] Code: 00 95 58 87 e8 e8 9b fd ff e8 a3 3f 00 00 31 ff 4c 89 ee e8 99 92 16 00 4d 85 ed 0f 85 23 02 00 00 e8 9b 8a 16 00 ff 34 24 9d <8b> 5c 24 34 31 ff 89 de e8 0a 92 16 00 85 db 0f 84 98 f9 ff ff e8 [ 60.522935][ C1] RSP: 0018:ffffc90000c472e0 EFLAGS: 00000293 [ 60.522957][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 60.522974][ C1] RDX: ffff8881011e3380 RSI: ffffffff8129c995 RDI: ffffffff8129cbbd [ 60.522993][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8a0305e7 [ 60.523011][ C1] R10: fffffbfff14060bc R11: 0000000000000000 R12: ffffffff82cd28c0 [ 60.523030][ C1] R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90000c47340 [ 60.523048][ C1] ? netconsole_netdev_event+0x340/0x340 [ 60.523082][ C1] ? console_unlock+0x805/0xbf0 [ 60.523112][ C1] ? console_unlock+0xa2d/0xbf0 [ 60.523143][ C1] ? devkmsg_read+0x750/0x750 [ 60.523171][ C1] ? lock_release+0x6e0/0x6e0 [ 60.523212][ C1] ? dev_vprintk_emit+0x36e/0x3b2 [ 60.523241][ C1] vprintk_emit+0x191/0x3e0 [ 60.523270][ C1] dev_vprintk_emit+0x36e/0x3b2 [ 60.523299][ C1] ? dev_attr_show.cold+0x3a/0x3a [ 60.523328][ C1] dev_printk_emit+0xba/0xf1 [ 60.523356][ C1] ? dev_vprintk_emit+0x3b2/0x3b2 [ 60.523383][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 60.523410][ C1] ? lock_chain_count+0x20/0x20 [ 60.523447][ C1] ? lock_acquire+0x288/0x710 [ 60.523492][ C1] __dev_printk+0xcf/0xf5 [ 60.523516][ C1] _dev_warn+0xd7/0x109 [ 60.523543][ C1] ? dev_err_probe.cold+0x21/0x21 [ 60.523571][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 60.523600][ C1] ? unpoison_range+0x3a/0x60 [ 60.523627][ C1] usb_get_configuration.cold+0x36b/0x14bb [ 60.523663][ C1] ? usb_destroy_configuration+0x710/0x710 [ 60.523699][ C1] ? usb_new_device+0xee/0x7a0 [ 60.523726][ C1] ? mark_held_locks+0x9f/0xe0 [ 60.523761][ C1] ? lockdep_hardirqs_on_prepare+0x286/0x3f0 [ 60.523791][ C1] usb_new_device+0x42c/0x7a0 [ 60.523817][ C1] ? __mutex_unlock_slowpath+0xe2/0x610 [ 60.523867][ C1] ? hub_disconnect+0x510/0x510 [ 60.523894][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 60.523925][ C1] ? lockdep_hardirqs_on_prepare+0x286/0x3f0 [ 60.523957][ C1] hub_event+0x2348/0x42d0 [ 60.523985][ C1] ? hub_port_debounce+0x3b0/0x3b0 [ 60.524012][ C1] ? mark_held_locks+0xc1/0xe0 [ 60.524040][ C1] ? init_rescuer+0x280/0x350 [ 60.524072][ C1] ? lock_release+0x6e0/0x6e0 [ 60.524100][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 60.524127][ C1] ? do_raw_spin_lock+0x120/0x2b0 [ 60.524159][ C1] process_one_work+0x98d/0x15c0 [ 60.524192][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 60.524226][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 60.524257][ C1] worker_thread+0x64c/0x1120 [ 60.524289][ C1] ? process_one_work+0x15c0/0x15c0 [ 60.524322][ C1] kthread+0x38c/0x460 [ 60.524348][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 60.524376][ C1] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 60.524408][ C1] ret_from_fork+0x1f/0x30 [ 60.525523][ C1] Kernel Offset: disabled [ 61.569890][ C1] Rebooting in 86400 seconds..