Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. 2022/03/05 17:24:00 fuzzer started 2022/03/05 17:24:00 connecting to host at 10.128.0.169:44547 2022/03/05 17:24:00 checking machine... 2022/03/05 17:24:00 checking revisions... 2022/03/05 17:24:00 testing simple program... syzkaller login: [ 43.981344][ T3597] cgroup: Unknown subsys name 'net' [ 44.091465][ T3597] cgroup: Unknown subsys name 'rlimit' [ 45.325380][ T3600] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 45.333583][ T3600] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 45.341665][ T3600] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 45.350277][ T3600] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 45.358473][ T3600] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 45.366263][ T3600] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 45.456187][ T3599] chnl_net:caif_netlink_parms(): no params data found [ 45.501010][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.509171][ T3599] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.517646][ T3599] device bridge_slave_0 entered promiscuous mode [ 45.528321][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.535713][ T3599] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.543603][ T3599] device bridge_slave_1 entered promiscuous mode [ 45.565547][ T3599] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.577565][ T3599] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.600391][ T3599] team0: Port device team_slave_0 added [ 45.607905][ T3599] team0: Port device team_slave_1 added [ 45.625897][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.632849][ 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. [ 45.659413][ T3599] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.672641][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.679908][ 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. [ 45.707326][ T3599] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.732736][ T3599] [ 45.735233][ T3599] ============================= [ 45.740367][ T3599] WARNING: suspicious RCU usage [ 45.745279][ T3599] 5.17.0-rc4-syzkaller-01382-g7df5072cc05f #0 Not tainted [ 45.752476][ T3599] ----------------------------- [ 45.757383][ T3599] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 45.765565][ T3599] [ 45.765565][ T3599] other info that might help us debug this: [ 45.765565][ T3599] [ 45.776113][ T3599] [ 45.776113][ T3599] rcu_scheduler_active = 2, debug_locks = 1 [ 45.784202][ T3599] 2 locks held by syz-executor.0/3599: [ 45.789999][ T3599] #0: ffffffff8d3309a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 45.799852][ T3599] #1: ffff888074f955f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 45.810138][ T3599] [ 45.810138][ T3599] stack backtrace: [ 45.816075][ T3599] CPU: 0 PID: 3599 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-01382-g7df5072cc05f #0 [ 45.826578][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.837069][ T3599] Call Trace: [ 45.840460][ T3599] [ 45.843387][ T3599] dump_stack_lvl+0xcd/0x134 [ 45.848060][ T3599] hsr_node_get_first+0x9b/0xb0 [ 45.853002][ T3599] hsr_create_self_node+0x22d/0x650 [ 45.858276][ T3599] hsr_dev_finalize+0x2c1/0x7d0 [ 45.863117][ T3599] hsr_newlink+0x315/0x730 [ 45.867522][ T3599] ? hsr_dellink+0x130/0x130 [ 45.872193][ T3599] ? rtnl_create_link+0x7e8/0xc00 [ 45.877226][ T3599] ? hsr_dellink+0x130/0x130 [ 45.881813][ T3599] __rtnl_newlink+0x107c/0x1760 [ 45.886815][ T3599] ? rtnl_setlink+0x3c0/0x3c0 [ 45.891510][ T3599] ? is_bpf_text_address+0x77/0x170 [ 45.896720][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 45.901868][ T3599] ? unwind_next_frame+0xee1/0x1ce0 [ 45.907196][ T3599] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 45.913598][ T3599] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 45.919346][ T3599] ? is_bpf_text_address+0x99/0x170 [ 45.924626][ T3599] ? kernel_text_address+0x39/0x80 [ 45.929934][ T3599] ? __kernel_text_address+0x9/0x30 [ 45.935260][ T3599] ? unwind_get_return_address+0x51/0x90 [ 45.941003][ T3599] ? create_prof_cpu_mask+0x20/0x20 [ 45.946564][ T3599] ? arch_stack_walk+0x93/0xe0 [ 45.951550][ T3599] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 45.957026][ T3599] ? rcu_read_lock_sched_held+0x3a/0x70 [ 45.962703][ T3599] rtnl_newlink+0x64/0xa0 [ 45.967205][ T3599] ? __rtnl_newlink+0x1760/0x1760 [ 45.972233][ T3599] rtnetlink_rcv_msg+0x413/0xb80 [ 45.977185][ T3599] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 45.982145][ T3599] netlink_rcv_skb+0x153/0x420 [ 45.987012][ T3599] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 45.991903][ T3599] ? netlink_ack+0xa60/0xa60 [ 45.996496][ T3599] ? netlink_deliver_tap+0x1a2/0xc40 [ 46.001792][ T3599] ? netlink_deliver_tap+0x1b1/0xc40 [ 46.007235][ T3599] netlink_unicast+0x539/0x7e0 [ 46.012182][ T3599] ? netlink_attachskb+0x880/0x880 [ 46.017380][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 46.023888][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 46.030121][ T3599] ? __phys_addr_symbol+0x2c/0x70 [ 46.035134][ T3599] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 46.041711][ T3599] ? __check_object_size+0x16e/0x310 [ 46.047003][ T3599] netlink_sendmsg+0x904/0xe00 [ 46.051782][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 46.056711][ T3599] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 46.062939][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 46.067865][ T3599] sock_sendmsg+0xcf/0x120 [ 46.072269][ T3599] __sys_sendto+0x21c/0x320 [ 46.076768][ T3599] ? __ia32_sys_getpeername+0xb0/0xb0 [ 46.082130][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 46.087322][ T3599] ? __context_tracking_exit+0xb8/0xe0 [ 46.092771][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 46.097631][ T3599] __x64_sys_sendto+0xdd/0x1b0 [ 46.102393][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 46.107676][ T3599] ? syscall_enter_from_user_mode+0x21/0x70 [ 46.113643][ T3599] do_syscall_64+0x35/0xb0 [ 46.118234][ T3599] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 46.124203][ T3599] RIP: 0033:0x7f1760c69e0c [ 46.128723][ 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 [ 46.150608][ T3599] RSP: 002b:00007ffcd2547810 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 46.159018][ T3599] RAX: ffffffffffffffda RBX: 00007f1761d02320 RCX: 00007f1760c69e0c [ 46.167151][ T3599] RDX: 0000000000000048 RSI: 00007f1761d02370 RDI: 0000000000000003 [ 46.175471][ T3599] RBP: 0000000000000000 R08: 00007ffcd2547864 R09: 000000000000000c [ 46.183530][ T3599] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 46.191487][ T3599] R13: 00007f1761d02370 R14: 0000000000000003 R15: 0000000000000000 [ 46.199554][ T3599] [ 46.207329][ T3599] device hsr_slave_0 entered promiscuous mode [ 46.215389][ T3599] device hsr_slave_1 entered promiscuous mode [ 46.301299][ T3599] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 46.312331][ T3599] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.322450][ T3599] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.332237][ T3599] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.353444][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.361188][ T3599] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.369275][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.376658][ T3599] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.422712][ T3599] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.436401][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.449013][ T25] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.458416][ T25] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.468219][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.480927][ T3599] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.506906][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.516344][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.525772][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.532852][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.541321][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.550251][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.559021][ T25] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.566256][ T25] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.573774][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.582970][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.591793][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.601126][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.609815][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.618740][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.627536][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.636212][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.649531][ T3599] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.661310][ T3599] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.671365][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.679587][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.688307][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.711470][ T3599] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 46.719304][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.727166][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.843079][ T3599] device veth0_vlan entered promiscuous mode [ 46.851638][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.861081][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.871498][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.881034][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.892910][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.901053][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.910283][ T3599] device veth1_vlan entered promiscuous mode [ 46.930344][ T3599] device veth0_macvtap entered promiscuous mode [ 46.938601][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.947523][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.955801][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.964513][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.975622][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.984679][ T3599] device veth1_macvtap entered promiscuous mode [ 47.001786][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 47.009562][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 47.018692][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 47.027754][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 47.040614][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 47.049089][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 47.058451][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 47.070033][ T3599] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.079731][ T3599] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.088931][ T3599] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.097733][ T3599] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.157635][ T54] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 47.174525][ T54] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 47.184902][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 47.194918][ T44] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 47.203223][ T44] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 47.212587][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/03/05 17:24:03 building call list... [ 49.626396][ T3591] can: request_module (can-proto-0) failed. [ 49.653986][ T3591] can: request_module (can-proto-0) failed. [ 49.674715][ T3591] can: request_module (can-proto-0) failed. [ 49.718448][ T54] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program