Warning: Permanently added '10.128.0.119' (ECDSA) to the list of known hosts. 2022/02/17 00:01:00 fuzzer started 2022/02/17 00:01:00 connecting to host at 10.128.0.169:39915 2022/02/17 00:01:00 checking machine... 2022/02/17 00:01:00 checking revisions... 2022/02/17 00:01:00 testing simple program... syzkaller login: [ 50.684002][ T3602] cgroup: Unknown subsys name 'net' [ 50.799434][ T3602] cgroup: Unknown subsys name 'rlimit' [ 52.003322][ T3608] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.011645][ T3608] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.020369][ T3608] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.028675][ T3608] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.036738][ T3608] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.044361][ T3608] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.131942][ T3604] chnl_net:caif_netlink_parms(): no params data found [ 52.175549][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.183486][ T3604] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.191872][ T3604] device bridge_slave_0 entered promiscuous mode [ 52.201219][ T3604] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.208482][ T3604] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.216461][ T3604] device bridge_slave_1 entered promiscuous mode [ 52.237537][ T3604] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.248505][ T3604] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.271782][ T3604] team0: Port device team_slave_0 added [ 52.279802][ T3604] team0: Port device team_slave_1 added [ 52.297264][ T3604] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.304332][ T3604] 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. [ 52.330508][ T3604] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.343201][ T3604] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.350175][ T3604] 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. [ 52.376269][ T3604] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.400080][ T3604] [ 52.402509][ T3604] ============================= [ 52.407398][ T3604] WARNING: suspicious RCU usage [ 52.412326][ T3604] 5.17.0-rc2-syzkaller-00970-gf76d8507d238 #0 Not tainted [ 52.419469][ T3604] ----------------------------- [ 52.424345][ T3604] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.432475][ T3604] [ 52.432475][ T3604] other info that might help us debug this: [ 52.432475][ T3604] [ 52.442741][ T3604] [ 52.442741][ T3604] rcu_scheduler_active = 2, debug_locks = 1 [ 52.451258][ T3604] 2 locks held by syz-executor.0/3604: [ 52.456930][ T3604] #0: ffffffff8d32caa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 52.466446][ T3604] #1: ffff8880773d55f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 52.476887][ T3604] [ 52.476887][ T3604] stack backtrace: [ 52.482832][ T3604] CPU: 0 PID: 3604 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00970-gf76d8507d238 #0 [ 52.493235][ T3604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.503500][ T3604] Call Trace: [ 52.506882][ T3604] [ 52.509946][ T3604] dump_stack_lvl+0xcd/0x134 [ 52.514687][ T3604] hsr_node_get_first+0x9b/0xb0 [ 52.519580][ T3604] hsr_create_self_node+0x22d/0x650 [ 52.524770][ T3604] hsr_dev_finalize+0x2c1/0x7d0 [ 52.529625][ T3604] hsr_newlink+0x315/0x730 [ 52.534029][ T3604] ? hsr_dellink+0x130/0x130 [ 52.538602][ T3604] ? rtnl_create_link+0x7e8/0xc00 [ 52.543613][ T3604] ? hsr_dellink+0x130/0x130 [ 52.548183][ T3604] __rtnl_newlink+0x107c/0x1760 [ 52.553024][ T3604] ? rtnl_setlink+0x3c0/0x3c0 [ 52.557704][ T3604] ? is_bpf_text_address+0x77/0x170 [ 52.562904][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 52.567758][ T3604] ? unwind_next_frame+0xee1/0x1ce0 [ 52.572940][ T3604] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.579007][ T3604] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 52.584718][ T3604] ? is_bpf_text_address+0x99/0x170 [ 52.589906][ T3604] ? kernel_text_address+0x39/0x80 [ 52.595018][ T3604] ? __kernel_text_address+0x9/0x30 [ 52.600444][ T3604] ? unwind_get_return_address+0x51/0x90 [ 52.606088][ T3604] ? create_prof_cpu_mask+0x20/0x20 [ 52.611298][ T3604] ? arch_stack_walk+0x93/0xe0 [ 52.616119][ T3604] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 52.621596][ T3604] ? rcu_read_lock_sched_held+0x3a/0x70 [ 52.627243][ T3604] rtnl_newlink+0x64/0xa0 [ 52.631599][ T3604] ? __rtnl_newlink+0x1760/0x1760 [ 52.636771][ T3604] rtnetlink_rcv_msg+0x413/0xb80 [ 52.641867][ T3604] ? rtnl_newlink+0xa0/0xa0 [ 52.646375][ T3604] netlink_rcv_skb+0x153/0x420 [ 52.651234][ T3604] ? rtnl_newlink+0xa0/0xa0 [ 52.655746][ T3604] ? netlink_ack+0xa60/0xa60 [ 52.660375][ T3604] ? netlink_deliver_tap+0x1a2/0xc40 [ 52.665746][ T3604] ? netlink_deliver_tap+0x1b1/0xc40 [ 52.671039][ T3604] netlink_unicast+0x539/0x7e0 [ 52.675804][ T3604] ? netlink_attachskb+0x880/0x880 [ 52.680898][ T3604] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 52.687140][ T3604] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 52.693394][ T3604] ? __phys_addr_symbol+0x2c/0x70 [ 52.698417][ T3604] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 52.704129][ T3604] ? __check_object_size+0x16e/0x310 [ 52.709426][ T3604] netlink_sendmsg+0x904/0xe00 [ 52.714200][ T3604] ? netlink_unicast+0x7e0/0x7e0 [ 52.719147][ T3604] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 52.725495][ T3604] ? netlink_unicast+0x7e0/0x7e0 [ 52.730424][ T3604] sock_sendmsg+0xcf/0x120 [ 52.734833][ T3604] __sys_sendto+0x21c/0x320 [ 52.739323][ T3604] ? __ia32_sys_getpeername+0xb0/0xb0 [ 52.744716][ T3604] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 52.750695][ T3604] ? __context_tracking_exit+0xb8/0xe0 [ 52.756240][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 52.761113][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 52.765971][ T3604] __x64_sys_sendto+0xdd/0x1b0 [ 52.770719][ T3604] ? lockdep_hardirqs_on+0x79/0x100 [ 52.775917][ T3604] ? syscall_enter_from_user_mode+0x21/0x70 [ 52.781800][ T3604] do_syscall_64+0x35/0xb0 [ 52.786217][ T3604] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.792095][ T3604] RIP: 0033:0x7fa327fe5e1c [ 52.796505][ T3604] 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 [ 52.816336][ T3604] RSP: 002b:00007fff2e95d010 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 52.824831][ T3604] RAX: ffffffffffffffda RBX: 00007fa32907e320 RCX: 00007fa327fe5e1c [ 52.832807][ T3604] RDX: 0000000000000048 RSI: 00007fa32907e370 RDI: 0000000000000003 [ 52.840767][ T3604] RBP: 0000000000000000 R08: 00007fff2e95d064 R09: 000000000000000c [ 52.848724][ T3604] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 52.856704][ T3604] R13: 00007fa32907e370 R14: 0000000000000003 R15: 0000000000000000 [ 52.864671][ T3604] [ 52.871449][ T3604] device hsr_slave_0 entered promiscuous mode [ 52.880429][ T3604] device hsr_slave_1 entered promiscuous mode [ 52.964019][ T3604] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.975589][ T3604] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.984660][ T3604] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.994854][ T3604] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.016771][ T3604] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.023994][ T3604] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.031875][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.039033][ T3604] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.082282][ T3604] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.095766][ T3259] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.106662][ T3259] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.116480][ T3259] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.125530][ T3259] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.140329][ T3604] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.150143][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.159717][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.168488][ T3614] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.175618][ T3614] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.193904][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.204813][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.213676][ T3614] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.220862][ T3614] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.229735][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.238609][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.248006][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.257214][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.277287][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.285265][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.294571][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.304475][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.313205][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.322031][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.330642][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.341230][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.362168][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.371047][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.381855][ T3604] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 53.495387][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.505755][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.518157][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.526535][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.537601][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.545865][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.554275][ T3604] device veth0_vlan entered promiscuous mode [ 53.566580][ T3604] device veth1_vlan entered promiscuous mode [ 53.586832][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.595606][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.604247][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 53.612956][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.623381][ T3604] device veth0_macvtap entered promiscuous mode [ 53.632163][ T3604] device veth1_macvtap entered promiscuous mode [ 53.649070][ T3604] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.657422][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.665902][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 53.674818][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 53.683662][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.697523][ T3604] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.706738][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 53.715547][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.726388][ T3604] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.735367][ T3604] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.745214][ T3604] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.754467][ T3604] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.815942][ T991] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.831237][ T991] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.842466][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.844914][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.851034][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.867590][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 00:01:04 building call list... [ 54.145696][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.114774][ T3598] can: request_module (can-proto-0) failed. [ 56.137424][ T3598] can: request_module (can-proto-0) failed. [ 56.160573][ T3598] can: request_module (can-proto-0) failed. [ 56.413313][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 56.695003][ T3604] syz-executor.0 (3604) used greatest stack depth: 22400 bytes left