[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.39' (ECDSA) to the list of known hosts. syzkaller login: [ 73.396124][ T8398] IPVS: ftp: loaded support on port[0] = 21 [ 73.496149][ T8398] chnl_net:caif_netlink_parms(): no params data found [ 73.546945][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.555071][ T8398] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.565171][ T8398] device bridge_slave_0 entered promiscuous mode [ 73.575887][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.584305][ T8398] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.592559][ T8398] device bridge_slave_1 entered promiscuous mode [ 73.612241][ T8398] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.623803][ T8398] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.646291][ T8398] team0: Port device team_slave_0 added [ 73.654731][ T8398] team0: Port device team_slave_1 added [ 73.673676][ T8398] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.681037][ T8398] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.707088][ T8398] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.719990][ T8398] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.728661][ T8398] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.755416][ T8398] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.782111][ T8398] device hsr_slave_0 entered promiscuous mode [ 73.789710][ T8398] device hsr_slave_1 entered promiscuous mode [ 73.890415][ T8398] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.901979][ T8398] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.912762][ T8398] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.922792][ T8398] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.948288][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.955487][ T8398] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.963703][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.970883][ T8398] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.013886][ T8398] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.029376][ T2965] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.041972][ T2965] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.050689][ T2965] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.061253][ T2965] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.074387][ T8398] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.086547][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.095846][ T3707] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.103106][ T3707] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.128555][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.138792][ T3707] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.145889][ T3707] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.155139][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.165335][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.174780][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.188251][ T2965] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.201015][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.213236][ T8398] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.230982][ T2965] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.238806][ T2965] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.252875][ T8398] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.272725][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.294290][ T8398] device veth0_vlan entered promiscuous mode [ 74.302055][ T8606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.312067][ T8606] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.320699][ T8606] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.336490][ T8398] device veth1_vlan entered promiscuous mode [ 74.359229][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.368979][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.378293][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.390726][ T8398] device veth0_macvtap entered promiscuous mode [ 74.401870][ T8398] device veth1_macvtap entered promiscuous mode [ 74.419983][ T8398] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.427918][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.437205][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.450659][ T8398] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.458589][ T3707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 74.472050][ T8398] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.481338][ T8398] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.492273][ T8398] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.501226][ T8398] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.817172][ T2965] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 75.098470][ T2965] usb 1-1: Using ep0 maxpacket: 8 [ 75.237196][ T2965] usb 1-1: config 1 contains an unexpected descriptor of type 0x2, skipping [ 75.246587][ T2965] usb 1-1: config 1 has an invalid descriptor of length 1, skipping remainder of the config [ 75.258401][ T2965] usb 1-1: config 1 has 1 interface, different from the descriptor's value: 3 [ 75.427627][ T2965] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 [ 75.437726][ T2965] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 75.445708][ T2965] usb 1-1: Product: syz [ 75.450804][ T2965] usb 1-1: Manufacturer: syz [ 75.455452][ T2965] usb 1-1: SerialNumber: syz [ 75.787000][ T2965] usb 1-1: 0:2 : does not exist [ 75.820349][ T2965] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 75.832212][ T2965] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 75.840634][ T2965] CPU: 0 PID: 2965 Comm: kworker/0:2 Not tainted 5.12.0-rc1-next-20210305-syzkaller #0 [ 75.850279][ T2965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.860344][ T2965] Workqueue: usb_hub_wq hub_event [ 75.865407][ T2965] RIP: 0010:usb_audio_probe+0xa80/0x2c70 [ 75.871037][ T2965] Code: 8b 74 24 08 48 89 df e8 0e 31 06 00 e8 59 64 8d fa 48 8b 04 24 48 8d 78 12 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 af [ 75.890654][ T2965] RSP: 0018:ffffc900016cf0c8 EFLAGS: 00010202 [ 75.896710][ T2965] RAX: dffffc0000000000 RBX: ffff888023e48e88 RCX: 0000000000000000 [ 75.904669][ T2965] RDX: 0000000000000002 RSI: ffffffff86e61767 RDI: 0000000000000012 [ 75.912632][ T2965] RBP: 0000000000000020 R08: 0000000000000000 R09: ffffffff8d580a07 [ 75.920593][ T2965] R10: ffffffff86e61bfe R11: 0000000000000000 R12: 0000000000000000 [ 75.928553][ T2965] R13: 0000000000000000 R14: dffffc0000000000 R15: 000000000000001f [ 75.936528][ T2965] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 75.945467][ T2965] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.952042][ T2965] CR2: 000056098ddcb140 CR3: 00000000147bd000 CR4: 00000000001506f0 [ 75.960008][ T2965] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.967967][ T2965] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.975926][ T2965] Call Trace: [ 75.979204][ T2965] ? snd_usb_create_stream.isra.0+0x530/0x530 [ 75.985271][ T2965] ? mark_held_locks+0x9f/0xe0 [ 75.990026][ T2965] ? ktime_get_mono_fast_ns+0x181/0x220 [ 75.995565][ T2965] ? _raw_spin_unlock_irqrestore+0x28/0x50 [ 76.001387][ T2965] usb_probe_interface+0x315/0x7f0 [ 76.006490][ T2965] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 76.011867][ T2965] really_probe+0x291/0xe60 [ 76.016367][ T2965] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 76.022603][ T2965] driver_probe_device+0x26b/0x3d0 [ 76.027726][ T2965] __device_attach_driver+0x1d1/0x290 [ 76.033134][ T2965] ? driver_allows_async_probing+0x150/0x150 [ 76.039106][ T2965] bus_for_each_drv+0x15f/0x1e0 [ 76.043951][ T2965] ? bus_for_each_dev+0x1d0/0x1d0 [ 76.048971][ T2965] ? _raw_spin_unlock_irqrestore+0x28/0x50 [ 76.054790][ T2965] ? lockdep_hardirqs_on+0x79/0x100 [ 76.059999][ T2965] ? _raw_spin_unlock_irqrestore+0x33/0x50 [ 76.065799][ T2965] __device_attach+0x228/0x4a0 [ 76.070554][ T2965] ? __driver_attach_async_helper+0x330/0x330 [ 76.076613][ T2965] ? kobject_uevent_env+0x2bb/0x1680 [ 76.081908][ T2965] bus_probe_device+0x1e4/0x290 [ 76.086773][ T2965] device_add+0xbdb/0x1db0 [ 76.091202][ T2965] ? wait_for_completion_io+0x270/0x270 [ 76.096753][ T2965] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 76.102994][ T2965] ? _raw_spin_unlock_irqrestore+0x28/0x50 [ 76.108798][ T2965] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 76.115035][ T2965] usb_set_configuration+0x113f/0x1910 [ 76.120496][ T2965] usb_generic_driver_probe+0xba/0x100 [ 76.125951][ T2965] usb_probe_device+0xd9/0x2c0 [ 76.130719][ T2965] ? usb_driver_release_interface+0x180/0x180 [ 76.136776][ T2965] really_probe+0x291/0xe60 [ 76.141270][ T2965] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 76.147506][ T2965] driver_probe_device+0x26b/0x3d0 [ 76.152607][ T2965] __device_attach_driver+0x1d1/0x290 [ 76.158419][ T2965] ? driver_allows_async_probing+0x150/0x150 [ 76.164408][ T2965] bus_for_each_drv+0x15f/0x1e0 [ 76.169261][ T2965] ? bus_for_each_dev+0x1d0/0x1d0 [ 76.174276][ T2965] ? _raw_spin_unlock_irqrestore+0x28/0x50 [ 76.180083][ T2965] ? lockdep_hardirqs_on+0x79/0x100 [ 76.185284][ T2965] ? _raw_spin_unlock_irqrestore+0x33/0x50 [ 76.191087][ T2965] __device_attach+0x228/0x4a0 [ 76.195840][ T2965] ? __driver_attach_async_helper+0x330/0x330 [ 76.201897][ T2965] ? kobject_uevent_env+0x2bb/0x1680 [ 76.207176][ T2965] bus_probe_device+0x1e4/0x290 [ 76.212023][ T2965] device_add+0xbdb/0x1db0 [ 76.216436][ T2965] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 76.222670][ T2965] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 76.228905][ T2965] usb_new_device.cold+0x721/0x1058 [ 76.234102][ T2965] ? hub_disconnect+0x510/0x510 [ 76.238942][ T2965] ? rwlock_bug.part.0+0x90/0x90 [ 76.243876][ T2965] ? _raw_spin_unlock_irq+0x1f/0x40 [ 76.249067][ T2965] hub_event+0x2357/0x4320 [ 76.253482][ T2965] ? hub_port_debounce+0x3c0/0x3c0 [ 76.258586][ T2965] ? lock_acquire+0x1bb/0x730 [ 76.263263][ T2965] ? lock_release+0x710/0x710 [ 76.268017][ T2965] ? lock_downgrade+0x6d0/0x6d0 [ 76.272860][ T2965] ? do_raw_spin_lock+0x120/0x2b0 [ 76.277877][ T2965] ? lock_is_held_type+0xd5/0x130 [ 76.282893][ T2965] process_one_work+0x98d/0x1600 [ 76.287845][ T2965] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.293208][ T2965] ? rwlock_bug.part.0+0x90/0x90 [ 76.298158][ T2965] ? _raw_spin_lock_irq+0x41/0x50 [ 76.303193][ T2965] worker_thread+0x64c/0x1120 [ 76.307863][ T2965] ? __kthread_parkme+0x13f/0x1e0 [ 76.312906][ T2965] ? process_one_work+0x1600/0x1600 [ 76.318098][ T2965] kthread+0x3b1/0x4a0 [ 76.322162][ T2965] ? __kthread_bind_mask+0xc0/0xc0 [ 76.327296][ T2965] ret_from_fork+0x1f/0x30 [ 76.331725][ T2965] Modules linked in: [ 76.364259][ T2965] ---[ end trace 4d5988887d9521a9 ]--- [ 76.370044][ T2965] RIP: 0010:usb_audio_probe+0xa80/0x2c70 [ 76.375708][ T2965] Code: 8b 74 24 08 48 89 df e8 0e 31 06 00 e8 59 64 8d fa 48 8b 04 24 48 8d 78 12 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 af [ 76.395464][ T2965] RSP: 0018:ffffc900016cf0c8 EFLAGS: 00010202 [ 76.402126][ T2965] RAX: dffffc0000000000 RBX: ffff888023e48e88 RCX: 0000000000000000 [ 76.410208][ T2965] RDX: 0000000000000002 RSI: ffffffff86e61767 RDI: 0000000000000012 [ 76.418284][ T2965] RBP: 0000000000000020 R08: 0000000000000000 R09: ffffffff8d580a07 [ 76.426276][ T2965] R10: ffffffff86e61bfe R11: 0000000000000000 R12: 0000000000000000 [ 76.434469][ T2965] R13: 0000000000000000 R14: dffffc0000000000 R15: 000000000000001f [ 76.442548][ T2965] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 76.451551][ T2965] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.458223][ T2965] CR2: 00005572425f2908 CR3: 0000000020f01000 CR4: 00000000001506f0 [ 76.466209][ T2965] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.474233][ T2965] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.482271][ T2965] Kernel panic - not syncing: Fatal exception [ 76.489003][ T2965] Kernel Offset: disabled [ 76.493318][ T2965] Rebooting in 86400 seconds..