Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. 2022/02/09 12:19:18 fuzzer started 2022/02/09 12:19:19 connecting to host at 10.128.0.169:34401 2022/02/09 12:19:19 checking machine... 2022/02/09 12:19:19 checking revisions... 2022/02/09 12:19:19 testing simple program... syzkaller login: [ 48.112529][ T3597] cgroup: Unknown subsys name 'net' [ 48.223431][ T3597] cgroup: Unknown subsys name 'rlimit' [ 49.417883][ T3600] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.426791][ T3600] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.434946][ T3600] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.442991][ T3600] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.450859][ T3600] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.458763][ T3600] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 49.549104][ T3599] chnl_net:caif_netlink_parms(): no params data found [ 49.592468][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.600551][ T3599] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.609119][ T3599] device bridge_slave_0 entered promiscuous mode [ 49.618931][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.626313][ T3599] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.634366][ T3599] device bridge_slave_1 entered promiscuous mode [ 49.655950][ T3599] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.668761][ T3599] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.692766][ T3599] team0: Port device team_slave_0 added [ 49.700897][ T3599] team0: Port device team_slave_1 added [ 49.718582][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.726200][ T3599] 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. [ 49.752482][ T3599] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.765327][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.772730][ T3599] 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. [ 49.800054][ T3599] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.824605][ T3599] [ 49.827207][ T3599] ============================= [ 49.832351][ T3599] WARNING: suspicious RCU usage [ 49.837428][ T3599] 5.17.0-rc2-syzkaller-00716-gaa4725c2fc03 #0 Not tainted [ 49.844822][ T3599] ----------------------------- [ 49.849818][ T3599] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 49.858005][ T3599] [ 49.858005][ T3599] other info that might help us debug this: [ 49.858005][ T3599] [ 49.868370][ T3599] [ 49.868370][ T3599] rcu_scheduler_active = 2, debug_locks = 1 [ 49.876667][ T3599] 2 locks held by syz-executor.0/3599: [ 49.882677][ T3599] #0: ffffffff8d32c1e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 49.892187][ T3599] #1: ffff88801ce8d5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 49.902749][ T3599] [ 49.902749][ T3599] stack backtrace: [ 49.909479][ T3599] CPU: 0 PID: 3599 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00716-gaa4725c2fc03 #0 [ 49.920532][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.930757][ T3599] Call Trace: [ 49.934031][ T3599] [ 49.937046][ T3599] dump_stack_lvl+0xcd/0x134 [ 49.941695][ T3599] hsr_node_get_first+0x9b/0xb0 [ 49.946542][ T3599] hsr_create_self_node+0x22d/0x650 [ 49.951773][ T3599] hsr_dev_finalize+0x2c1/0x7d0 [ 49.956716][ T3599] hsr_newlink+0x315/0x730 [ 49.961228][ T3599] ? hsr_dellink+0x130/0x130 [ 49.965941][ T3599] ? rtnl_create_link+0x7e8/0xc00 [ 49.970965][ T3599] ? hsr_dellink+0x130/0x130 [ 49.975551][ T3599] __rtnl_newlink+0x107c/0x1760 [ 49.980599][ T3599] ? rtnl_setlink+0x3c0/0x3c0 [ 49.985279][ T3599] ? is_bpf_text_address+0x77/0x170 [ 49.990656][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 49.995610][ T3599] ? unwind_next_frame+0xee1/0x1ce0 [ 50.000983][ T3599] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.007051][ T3599] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 50.012869][ T3599] ? is_bpf_text_address+0x99/0x170 [ 50.018247][ T3599] ? kernel_text_address+0x39/0x80 [ 50.023464][ T3599] ? __kernel_text_address+0x9/0x30 [ 50.028804][ T3599] ? unwind_get_return_address+0x51/0x90 [ 50.034697][ T3599] ? create_prof_cpu_mask+0x20/0x20 [ 50.039907][ T3599] ? arch_stack_walk+0x93/0xe0 [ 50.044979][ T3599] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 50.050539][ T3599] ? rcu_read_lock_sched_held+0x3a/0x70 [ 50.056346][ T3599] rtnl_newlink+0x64/0xa0 [ 50.060764][ T3599] ? __rtnl_newlink+0x1760/0x1760 [ 50.065789][ T3599] rtnetlink_rcv_msg+0x413/0xb80 [ 50.070904][ T3599] ? rtnl_newlink+0xa0/0xa0 [ 50.075459][ T3599] netlink_rcv_skb+0x153/0x420 [ 50.080350][ T3599] ? rtnl_newlink+0xa0/0xa0 [ 50.084858][ T3599] ? netlink_ack+0xa60/0xa60 [ 50.089466][ T3599] ? netlink_deliver_tap+0x1a2/0xc40 [ 50.095016][ T3599] ? netlink_deliver_tap+0x1b1/0xc40 [ 50.100484][ T3599] netlink_unicast+0x539/0x7e0 [ 50.105459][ T3599] ? netlink_attachskb+0x880/0x880 [ 50.110667][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.117103][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.123521][ T3599] ? __phys_addr_symbol+0x2c/0x70 [ 50.128636][ T3599] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 50.134373][ T3599] ? __check_object_size+0x16e/0x310 [ 50.139924][ T3599] netlink_sendmsg+0x904/0xe00 [ 50.144694][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 50.149697][ T3599] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.156029][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 50.161192][ T3599] sock_sendmsg+0xcf/0x120 [ 50.165618][ T3599] __sys_sendto+0x21c/0x320 [ 50.170127][ T3599] ? __ia32_sys_getpeername+0xb0/0xb0 [ 50.175591][ T3599] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 50.181852][ T3599] ? __context_tracking_exit+0xb8/0xe0 [ 50.187653][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 50.192510][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 50.197413][ T3599] __x64_sys_sendto+0xdd/0x1b0 [ 50.202178][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 50.207396][ T3599] ? syscall_enter_from_user_mode+0x21/0x70 [ 50.213409][ T3599] do_syscall_64+0x35/0xb0 [ 50.217923][ T3599] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.224003][ T3599] RIP: 0033:0x7f531c6f1e1c [ 50.228540][ T3599] Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b [ 50.248310][ T3599] RSP: 002b:00007ffc79ed6300 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 50.256937][ T3599] RAX: ffffffffffffffda RBX: 00007f531d78a320 RCX: 00007f531c6f1e1c [ 50.264930][ T3599] RDX: 0000000000000048 RSI: 00007f531d78a370 RDI: 0000000000000003 [ 50.272902][ T3599] RBP: 0000000000000000 R08: 00007ffc79ed6354 R09: 000000000000000c [ 50.281335][ T3599] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 50.290176][ T3599] R13: 00007f531d78a370 R14: 0000000000000003 R15: 0000000000000000 [ 50.298187][ T3599] [ 50.311056][ T3599] device hsr_slave_0 entered promiscuous mode [ 50.319032][ T3599] device hsr_slave_1 entered promiscuous mode [ 50.446622][ T3599] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.461588][ T3599] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.473620][ T3599] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.486444][ T3599] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.509579][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.517633][ T3599] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.525849][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.533500][ T3599] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.580456][ T3599] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.593710][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.605025][ T25] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.622125][ T25] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.632099][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.645317][ T3599] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.656566][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.665676][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.674894][ T6] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.682195][ T6] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.693534][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.702791][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.712729][ T3610] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.720036][ T3610] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.738020][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.747325][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.770316][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.789834][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.799368][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.808256][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.824202][ T3599] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 50.835264][ T3599] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 50.849579][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.858270][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.867580][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.876728][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready executing program [ 50.885357][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.894714][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.912438][ T3599] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.936986][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 50.950376][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.088209][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.098661][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.116325][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.124729][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.134878][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.144386][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.154246][ T3599] device veth0_vlan entered promiscuous mode [ 51.166848][ T3599] device veth1_vlan entered promiscuous mode [ 51.186123][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.194976][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.204373][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.213737][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.225237][ T3599] device veth0_macvtap entered promiscuous mode [ 51.235374][ T3599] device veth1_macvtap entered promiscuous mode [ 51.250816][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.258743][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.267211][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.275325][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.285017][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.296972][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.305070][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.314507][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.327004][ T3599] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.338154][ T3599] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.347637][ T3599] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.357061][ T3599] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.420178][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.439114][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.448505][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.458536][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.466766][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.475442][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 51.490910][ T3609] Bluetooth: hci0: command 0x0409 tx timeout 2022/02/09 12:19:22 building call list... [ 51.754980][ T44] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.718205][ T3594] can: request_module (can-proto-0) failed. [ 53.747889][ T3594] can: request_module (can-proto-0) failed. [ 53.770063][ T3594] can: request_module (can-proto-0) failed. executing program [ 54.011951][ T44] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0