Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. 2022/02/25 01:38:49 fuzzer started 2022/02/25 01:38:49 connecting to host at 10.128.0.169:45401 2022/02/25 01:38:49 checking machine... 2022/02/25 01:38:49 checking revisions... 2022/02/25 01:38:49 testing simple program... syzkaller login: [ 50.944096][ T3597] cgroup: Unknown subsys name 'net' [ 51.069078][ T3597] cgroup: Unknown subsys name 'rlimit' [ 52.352814][ T3600] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.361016][ T3600] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.369275][ T3600] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.377963][ T3600] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.386023][ T3600] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.394666][ T3600] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.481583][ T3599] chnl_net:caif_netlink_parms(): no params data found [ 52.525756][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.533976][ T3599] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.541823][ T3599] device bridge_slave_0 entered promiscuous mode [ 52.551091][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.559229][ T3599] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.567615][ T3599] device bridge_slave_1 entered promiscuous mode [ 52.588787][ T3599] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.599967][ T3599] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.622414][ T3599] team0: Port device team_slave_0 added [ 52.630589][ T3599] team0: Port device team_slave_1 added [ 52.648943][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.656019][ 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. [ 52.682460][ T3599] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.695760][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.702866][ 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. [ 52.729896][ T3599] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.754598][ T3599] [ 52.757167][ T3599] ============================= [ 52.762098][ T3599] WARNING: suspicious RCU usage [ 52.767032][ T3599] 5.17.0-rc4-syzkaller-01359-g08d4dba6ae77 #0 Not tainted [ 52.774395][ T3599] ----------------------------- [ 52.779349][ T3599] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.787543][ T3599] [ 52.787543][ T3599] other info that might help us debug this: [ 52.787543][ T3599] [ 52.798614][ T3599] [ 52.798614][ T3599] rcu_scheduler_active = 2, debug_locks = 1 [ 52.807172][ T3599] 2 locks held by syz-executor.0/3599: [ 52.812686][ T3599] #0: ffffffff8d3308e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 52.822378][ T3599] #1: ffff88801dbad5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 52.832667][ T3599] [ 52.832667][ T3599] stack backtrace: [ 52.838681][ T3599] CPU: 1 PID: 3599 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-01359-g08d4dba6ae77 #0 [ 52.849112][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.859164][ T3599] Call Trace: [ 52.862528][ T3599] [ 52.865453][ T3599] dump_stack_lvl+0xcd/0x134 [ 52.870033][ T3599] hsr_node_get_first+0x9b/0xb0 [ 52.874884][ T3599] hsr_create_self_node+0x22d/0x650 [ 52.880099][ T3599] hsr_dev_finalize+0x2c1/0x7d0 [ 52.884960][ T3599] hsr_newlink+0x315/0x730 [ 52.889386][ T3599] ? hsr_dellink+0x130/0x130 [ 52.893973][ T3599] ? rtnl_create_link+0x7e8/0xc00 [ 52.899078][ T3599] ? hsr_dellink+0x130/0x130 [ 52.903803][ T3599] __rtnl_newlink+0x107c/0x1760 [ 52.908826][ T3599] ? rtnl_setlink+0x3c0/0x3c0 [ 52.913497][ T3599] ? is_bpf_text_address+0x77/0x170 [ 52.918695][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 52.923549][ T3599] ? unwind_next_frame+0xee1/0x1ce0 [ 52.928753][ T3599] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.934831][ T3599] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 52.940707][ T3599] ? is_bpf_text_address+0x99/0x170 [ 52.945914][ T3599] ? kernel_text_address+0x39/0x80 [ 52.951168][ T3599] ? __kernel_text_address+0x9/0x30 [ 52.956365][ T3599] ? unwind_get_return_address+0x51/0x90 [ 52.962002][ T3599] ? create_prof_cpu_mask+0x20/0x20 [ 52.967237][ T3599] ? arch_stack_walk+0x93/0xe0 [ 52.972143][ T3599] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 52.977740][ T3599] ? rcu_read_lock_sched_held+0x3a/0x70 [ 52.983295][ T3599] rtnl_newlink+0x64/0xa0 [ 52.987774][ T3599] ? __rtnl_newlink+0x1760/0x1760 [ 52.992793][ T3599] rtnetlink_rcv_msg+0x413/0xb80 [ 52.997725][ T3599] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.002573][ T3599] netlink_rcv_skb+0x153/0x420 [ 53.007448][ T3599] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.012213][ T3599] ? netlink_ack+0xa60/0xa60 [ 53.016880][ T3599] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.022251][ T3599] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.027540][ T3599] netlink_unicast+0x539/0x7e0 [ 53.032299][ T3599] ? netlink_attachskb+0x880/0x880 [ 53.037464][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.043825][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.050252][ T3599] ? __phys_addr_symbol+0x2c/0x70 [ 53.055298][ T3599] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.061374][ T3599] ? __check_object_size+0x16e/0x310 [ 53.066838][ T3599] netlink_sendmsg+0x904/0xe00 [ 53.071696][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 53.076675][ T3599] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.083062][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 53.088096][ T3599] sock_sendmsg+0xcf/0x120 [ 53.092517][ T3599] __sys_sendto+0x21c/0x320 [ 53.097098][ T3599] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.102462][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 53.107844][ T3599] ? __context_tracking_exit+0xb8/0xe0 [ 53.113429][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 53.118463][ T3599] __x64_sys_sendto+0xdd/0x1b0 [ 53.123491][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 53.128958][ T3599] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.134940][ T3599] do_syscall_64+0x35/0xb0 [ 53.139831][ T3599] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.145971][ T3599] RIP: 0033:0x7f4e045dfe1c [ 53.150409][ 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 [ 53.170276][ T3599] RSP: 002b:00007ffe333e1c80 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.178863][ T3599] RAX: ffffffffffffffda RBX: 00007f4e05678320 RCX: 00007f4e045dfe1c [ 53.186940][ T3599] RDX: 0000000000000048 RSI: 00007f4e05678370 RDI: 0000000000000003 [ 53.194914][ T3599] RBP: 0000000000000000 R08: 00007ffe333e1cd4 R09: 000000000000000c [ 53.202965][ T3599] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.211048][ T3599] R13: 00007f4e05678370 R14: 0000000000000003 R15: 0000000000000000 [ 53.219375][ T3599] [ 53.226041][ T3599] device hsr_slave_0 entered promiscuous mode [ 53.234381][ T3599] device hsr_slave_1 entered promiscuous mode [ 53.316213][ T3599] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.327000][ T3599] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.336488][ T3599] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.346748][ T3599] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.369379][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.376586][ T3599] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.384742][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.392070][ T3599] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.435666][ T3599] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.448165][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.458440][ T920] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.468416][ T920] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.477055][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.492956][ T3599] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.504386][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.513416][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.521839][ T920] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.529078][ T920] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.542629][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.552206][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.560813][ T920] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.568029][ T920] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.575895][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.596884][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.605603][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.614552][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.624419][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.633633][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.642394][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.650671][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.660964][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.668903][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.677496][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.688839][ T3599] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 53.706613][ T3261] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.715278][ T3261] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.728530][ T3599] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.843430][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.853899][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.866460][ T3599] device veth0_vlan entered promiscuous mode [ 53.875997][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.885393][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.896296][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.904427][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.915607][ T3599] device veth1_vlan entered promiscuous mode [ 53.935678][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.943752][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.951740][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 53.960594][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.971049][ T3599] device veth0_macvtap entered promiscuous mode [ 53.980718][ T3599] device veth1_macvtap entered promiscuous mode [ 53.995976][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.005457][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.013985][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.021934][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.031510][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.042762][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.051241][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.060315][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.071518][ T3599] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.082433][ T3599] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.091133][ T3599] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.100314][ T3599] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.160456][ T44] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.177158][ T44] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.189547][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.189666][ T978] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.206059][ T978] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.214811][ T920] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/25 01:38:53 building call list... [ 54.457488][ T978] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.604406][ T3594] can: request_module (can-proto-0) failed. [ 56.626593][ T3594] can: request_module (can-proto-0) failed. [ 56.648495][ T3594] can: request_module (can-proto-0) failed. executing program [ 56.903987][ T3599] syz-executor.0 (3599) used greatest stack depth: 22512 bytes left [ 57.003159][ T978] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0