Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. 2022/02/08 13:48:47 fuzzer started 2022/02/08 13:48:47 connecting to host at 10.128.0.169:34813 2022/02/08 13:48:47 checking machine... 2022/02/08 13:48:47 checking revisions... 2022/02/08 13:48:47 testing simple program... syzkaller login: [ 48.341480][ T3594] cgroup: Unknown subsys name 'net' [ 48.443789][ T3594] cgroup: Unknown subsys name 'rlimit' [ 49.677998][ T3597] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.686527][ T3597] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.694454][ T3597] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.702887][ T3597] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.710758][ T3597] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.718455][ T3597] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 49.808939][ T3596] chnl_net:caif_netlink_parms(): no params data found [ 49.851950][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.859608][ T3596] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.868022][ T3596] device bridge_slave_0 entered promiscuous mode [ 49.877965][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.885190][ T3596] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.893868][ T3596] device bridge_slave_1 entered promiscuous mode [ 49.914671][ T3596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.927630][ T3596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.950843][ T3596] team0: Port device team_slave_0 added [ 49.958999][ T3596] team0: Port device team_slave_1 added [ 49.975783][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.983645][ T3596] 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. [ 50.010173][ T3596] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.023398][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.030476][ T3596] 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. [ 50.057078][ T3596] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.080923][ T3596] [ 50.083470][ T3596] ============================= [ 50.088648][ T3596] WARNING: suspicious RCU usage [ 50.093785][ T3596] 5.17.0-rc3-next-20220208-syzkaller #0 Not tainted [ 50.100669][ T3596] ----------------------------- [ 50.105513][ T3596] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 50.113799][ T3596] [ 50.113799][ T3596] other info that might help us debug this: [ 50.113799][ T3596] [ 50.124257][ T3596] [ 50.124257][ T3596] rcu_scheduler_active = 2, debug_locks = 1 [ 50.132368][ T3596] 2 locks held by syz-executor.0/3596: [ 50.137863][ T3596] #0: ffffffff8d3357e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 50.147470][ T3596] #1: ffff88807ec9d5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 50.157623][ T3596] [ 50.157623][ T3596] stack backtrace: [ 50.163510][ T3596] CPU: 1 PID: 3596 Comm: syz-executor.0 Not tainted 5.17.0-rc3-next-20220208-syzkaller #0 [ 50.173381][ T3596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.183623][ T3596] Call Trace: [ 50.186904][ T3596] [ 50.189844][ T3596] dump_stack_lvl+0xcd/0x134 [ 50.194640][ T3596] hsr_node_get_first+0x9b/0xb0 [ 50.199499][ T3596] hsr_create_self_node+0x22d/0x650 [ 50.204688][ T3596] hsr_dev_finalize+0x2c1/0x7d0 [ 50.209669][ T3596] hsr_newlink+0x315/0x730 [ 50.214113][ T3596] ? hsr_dellink+0x130/0x130 [ 50.218789][ T3596] ? rtnl_create_link+0x7e8/0xc00 [ 50.223803][ T3596] ? hsr_dellink+0x130/0x130 [ 50.228397][ T3596] __rtnl_newlink+0x107c/0x1760 [ 50.233249][ T3596] ? rtnl_setlink+0x3c0/0x3c0 [ 50.238043][ T3596] ? is_bpf_text_address+0x77/0x170 [ 50.243362][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 50.248219][ T3596] ? unwind_next_frame+0xee1/0x1ce0 [ 50.253605][ T3596] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.259669][ T3596] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 50.265423][ T3596] ? is_bpf_text_address+0x99/0x170 [ 50.270819][ T3596] ? kernel_text_address+0x39/0x80 [ 50.275950][ T3596] ? __kernel_text_address+0x9/0x30 [ 50.281336][ T3596] ? unwind_get_return_address+0x51/0x90 [ 50.286975][ T3596] ? create_prof_cpu_mask+0x20/0x20 [ 50.292178][ T3596] ? arch_stack_walk+0x93/0xe0 [ 50.297172][ T3596] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 50.302637][ T3596] ? rcu_read_lock_sched_held+0x3a/0x70 [ 50.308194][ T3596] rtnl_newlink+0x64/0xa0 [ 50.312524][ T3596] ? __rtnl_newlink+0x1760/0x1760 [ 50.317545][ T3596] rtnetlink_rcv_msg+0x413/0xb80 [ 50.322631][ T3596] ? rtnl_newlink+0xa0/0xa0 [ 50.327159][ T3596] netlink_rcv_skb+0x153/0x420 [ 50.331931][ T3596] ? rtnl_newlink+0xa0/0xa0 [ 50.336436][ T3596] ? netlink_ack+0xa80/0xa80 [ 50.341095][ T3596] ? netlink_deliver_tap+0x1a2/0xc40 [ 50.346532][ T3596] ? netlink_deliver_tap+0x1b1/0xc40 [ 50.351839][ T3596] netlink_unicast+0x539/0x7e0 [ 50.356633][ T3596] ? netlink_attachskb+0x880/0x880 [ 50.361750][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.368003][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.374707][ T3596] ? __phys_addr_symbol+0x2c/0x70 [ 50.379753][ T3596] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 50.385568][ T3596] ? __check_object_size+0x16c/0x4f0 [ 50.390859][ T3596] netlink_sendmsg+0x904/0xe00 [ 50.395715][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 50.400722][ T3596] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.407003][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 50.412119][ T3596] sock_sendmsg+0xcf/0x120 [ 50.416548][ T3596] __sys_sendto+0x21c/0x320 [ 50.421052][ T3596] ? __ia32_sys_getpeername+0xb0/0xb0 [ 50.426427][ T3596] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 50.432721][ T3596] ? __context_tracking_exit+0xb8/0xe0 [ 50.438188][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 50.443041][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 50.447902][ T3596] __x64_sys_sendto+0xdd/0x1b0 [ 50.452759][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 50.457964][ T3596] ? syscall_enter_from_user_mode+0x21/0x70 [ 50.464150][ T3596] do_syscall_64+0x35/0xb0 [ 50.468565][ T3596] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.474452][ T3596] RIP: 0033:0x7f3148504e1c [ 50.479052][ T3596] 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 [ 50.498926][ T3596] RSP: 002b:00007ffeab5f2ab0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 50.507342][ T3596] RAX: ffffffffffffffda RBX: 00007f314959d320 RCX: 00007f3148504e1c [ 50.515393][ T3596] RDX: 0000000000000048 RSI: 00007f314959d370 RDI: 0000000000000003 [ 50.523444][ T3596] RBP: 0000000000000000 R08: 00007ffeab5f2b04 R09: 000000000000000c [ 50.531492][ T3596] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 50.539455][ T3596] R13: 00007f314959d370 R14: 0000000000000003 R15: 0000000000000000 [ 50.547520][ T3596] [ 50.554502][ T3596] device hsr_slave_0 entered promiscuous mode [ 50.561843][ T3596] device hsr_slave_1 entered promiscuous mode [ 50.640082][ T3596] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.649905][ T3596] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.661033][ T3596] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.671434][ T3596] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.692463][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.699813][ T3596] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.708151][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.715238][ T3596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.761614][ T3596] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.774008][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.785855][ T3606] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.795166][ T3606] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.803134][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.815166][ T3596] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.827381][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.836367][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.845125][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.852223][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.864383][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.873876][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.883082][ T3606] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.890189][ T3606] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.910050][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.919385][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.928372][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.937957][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.946378][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.956349][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.964964][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.974438][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.983237][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.994491][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.003263][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.013335][ T3596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.031536][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.039730][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.051506][ T3596] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 51.165627][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.175147][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.191992][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.201354][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.212035][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.220251][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.229739][ T3596] device veth0_vlan entered promiscuous mode [ 51.240983][ T3596] device veth1_vlan entered promiscuous mode [ 51.260718][ T3596] device veth0_macvtap entered promiscuous mode [ 51.268614][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.276565][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.285219][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.294332][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.305269][ T3596] device veth1_macvtap entered promiscuous mode [ 51.312984][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.321422][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.335858][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.344882][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.354295][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.365351][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.376026][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.385624][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.396458][ T3596] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.406145][ T3596] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.415472][ T3596] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.425663][ T3596] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.489329][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.505442][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.518282][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.529115][ T1245] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.537606][ T1245] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.546661][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/08 13:48:51 building call list... [ 51.867953][ T1245] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.886445][ T3593] can: request_module (can-proto-0) failed. [ 53.911058][ T3593] can: request_module (can-proto-0) failed. [ 53.932175][ T3593] can: request_module (can-proto-0) failed. executing program [ 54.598872][ T3596] syz-executor.0 (3596) used greatest stack depth: 22424 bytes left