Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. 2022/02/17 10:04:22 fuzzer started 2022/02/17 10:04:22 connecting to host at 10.128.0.169:34147 2022/02/17 10:04:22 checking machine... 2022/02/17 10:04:22 checking revisions... 2022/02/17 10:04:22 testing simple program... syzkaller login: [ 51.083216][ T3592] cgroup: Unknown subsys name 'net' [ 51.193902][ T3592] cgroup: Unknown subsys name 'rlimit' [ 52.437042][ T3595] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.445033][ T3595] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.452866][ T3595] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.460819][ T3595] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.468862][ T3595] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.476735][ T3595] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.564781][ T3594] chnl_net:caif_netlink_parms(): no params data found [ 52.609263][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.616846][ T3594] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.625001][ T3594] device bridge_slave_0 entered promiscuous mode [ 52.634844][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.642337][ T3594] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.650684][ T3594] device bridge_slave_1 entered promiscuous mode [ 52.671962][ T3594] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.683188][ T3594] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.705342][ T3594] team0: Port device team_slave_0 added [ 52.713759][ T3594] team0: Port device team_slave_1 added [ 52.732144][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.739297][ T3594] 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. [ 52.765551][ T3594] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.778579][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.785822][ T3594] 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. [ 52.812305][ T3594] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.836586][ T3594] [ 52.839114][ T3594] ============================= [ 52.843970][ T3594] WARNING: suspicious RCU usage [ 52.848885][ T3594] 5.17.0-rc4-next-20220217-syzkaller #0 Not tainted [ 52.855493][ T3594] ----------------------------- [ 52.860500][ T3594] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.868826][ T3594] [ 52.868826][ T3594] other info that might help us debug this: [ 52.868826][ T3594] [ 52.879301][ T3594] [ 52.879301][ T3594] rcu_scheduler_active = 2, debug_locks = 1 [ 52.887412][ T3594] 2 locks held by syz-executor.0/3594: [ 52.892981][ T3594] #0: ffffffff8d539528 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 52.902596][ T3594] #1: ffff88801eaad5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 52.912775][ T3594] [ 52.912775][ T3594] stack backtrace: [ 52.918718][ T3594] CPU: 1 PID: 3594 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220217-syzkaller #0 [ 52.928626][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.938967][ T3594] Call Trace: [ 52.942326][ T3594] [ 52.945265][ T3594] dump_stack_lvl+0xcd/0x134 [ 52.949871][ T3594] hsr_node_get_first+0x9b/0xb0 [ 52.954736][ T3594] hsr_create_self_node+0x22d/0x650 [ 52.959963][ T3594] hsr_dev_finalize+0x2c1/0x7d0 [ 52.965019][ T3594] hsr_newlink+0x315/0x730 [ 52.969529][ T3594] ? hsr_dellink+0x130/0x130 [ 52.974132][ T3594] ? rtnl_create_link+0x7e8/0xc00 [ 52.979170][ T3594] ? hsr_dellink+0x130/0x130 [ 52.983770][ T3594] __rtnl_newlink+0x107c/0x1760 [ 52.988636][ T3594] ? rtnl_setlink+0x3c0/0x3c0 [ 52.993441][ T3594] ? is_bpf_text_address+0x77/0x170 [ 52.998654][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 53.003514][ T3594] ? unwind_next_frame+0xee1/0x1ce0 [ 53.008900][ T3594] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.015248][ T3594] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.020987][ T3594] ? is_bpf_text_address+0x99/0x170 [ 53.026204][ T3594] ? kernel_text_address+0x39/0x80 [ 53.031413][ T3594] ? __kernel_text_address+0x9/0x30 [ 53.036619][ T3594] ? unwind_get_return_address+0x51/0x90 [ 53.042254][ T3594] ? create_prof_cpu_mask+0x20/0x20 [ 53.047486][ T3594] ? arch_stack_walk+0x93/0xe0 [ 53.052320][ T3594] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 53.057819][ T3594] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.063389][ T3594] rtnl_newlink+0x64/0xa0 [ 53.067826][ T3594] ? __rtnl_newlink+0x1760/0x1760 [ 53.072964][ T3594] rtnetlink_rcv_msg+0x413/0xb80 [ 53.077933][ T3594] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.082734][ T3594] netlink_rcv_skb+0x153/0x420 [ 53.087521][ T3594] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.092383][ T3594] ? netlink_ack+0xa80/0xa80 [ 53.097064][ T3594] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.102459][ T3594] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.107848][ T3594] netlink_unicast+0x539/0x7e0 [ 53.112624][ T3594] ? netlink_attachskb+0x880/0x880 [ 53.117998][ T3594] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.124346][ T3594] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.130604][ T3594] ? __phys_addr_symbol+0x2c/0x70 [ 53.135665][ T3594] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.141587][ T3594] ? __check_object_size+0x16c/0x4f0 [ 53.146994][ T3594] netlink_sendmsg+0x904/0xe00 [ 53.151776][ T3594] ? netlink_unicast+0x7e0/0x7e0 [ 53.157172][ T3594] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.163608][ T3594] ? netlink_unicast+0x7e0/0x7e0 [ 53.168638][ T3594] sock_sendmsg+0xcf/0x120 [ 53.173072][ T3594] __sys_sendto+0x21c/0x320 [ 53.177694][ T3594] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.183086][ T3594] ? lockdep_hardirqs_on+0x79/0x100 [ 53.188312][ T3594] ? __context_tracking_exit+0xb8/0xe0 [ 53.193820][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 53.198850][ T3594] __x64_sys_sendto+0xdd/0x1b0 [ 53.203627][ T3594] ? lockdep_hardirqs_on+0x79/0x100 [ 53.208937][ T3594] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.214845][ T3594] do_syscall_64+0x35/0xb0 [ 53.219276][ T3594] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.225212][ T3594] RIP: 0033:0x7fd44cc08e1c [ 53.229643][ T3594] 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 [ 53.249888][ T3594] RSP: 002b:00007ffff4259320 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.258422][ T3594] RAX: ffffffffffffffda RBX: 00007fd44dca1320 RCX: 00007fd44cc08e1c [ 53.266418][ T3594] RDX: 0000000000000048 RSI: 00007fd44dca1370 RDI: 0000000000000003 [ 53.274688][ T3594] RBP: 0000000000000000 R08: 00007ffff4259374 R09: 000000000000000c [ 53.282669][ T3594] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.290762][ T3594] R13: 00007fd44dca1370 R14: 0000000000000003 R15: 0000000000000000 [ 53.298760][ T3594] [ 53.309913][ T3594] device hsr_slave_0 entered promiscuous mode [ 53.317669][ T3594] device hsr_slave_1 entered promiscuous mode [ 53.400395][ T3594] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.411328][ T3594] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.421515][ T3594] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.430831][ T3594] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.454365][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.462114][ T3594] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.470209][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.477397][ T3594] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.522958][ T3594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.536039][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.549627][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.558239][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.568624][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.582596][ T3594] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.592861][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.602102][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.612044][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.619473][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.630709][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.642287][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.651525][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.658737][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.672625][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.688301][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.697511][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.707800][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.717387][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.728315][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.737262][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.751980][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.761772][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.770981][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.780558][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.791676][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.811148][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.819459][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.833946][ T3594] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 53.946749][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.955440][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.965573][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.975146][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.984100][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.993050][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.003202][ T3594] device veth0_vlan entered promiscuous mode [ 54.014623][ T3594] device veth1_vlan entered promiscuous mode [ 54.033262][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.041434][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.050128][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.059535][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.070393][ T3594] device veth0_macvtap entered promiscuous mode [ 54.079585][ T3594] device veth1_macvtap entered promiscuous mode [ 54.095203][ T3594] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.103304][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.111377][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.119547][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.128704][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.140560][ T3594] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.149652][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.158342][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.170184][ T3594] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.179156][ T3594] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.189076][ T3594] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.198212][ T3594] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.257212][ T975] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.265213][ T975] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.282155][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.296893][ T975] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.305611][ T975] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.314891][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 10:04:26 building call list... [ 54.564329][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.566368][ T3589] can: request_module (can-proto-0) failed. [ 56.590249][ T3589] can: request_module (can-proto-0) failed. [ 56.611182][ T3589] can: request_module (can-proto-0) failed. executing program [ 57.135692][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0