forked to background, child pid 3171 no interfaces have a carrier [ 32.313603][ T3172] 8021q: adding VLAN 0 to HW filter on device bond0 [ 32.323690][ T3172] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.226' (ECDSA) to the list of known hosts. 2022/02/16 23:43:59 fuzzer started 2022/02/16 23:44:00 connecting to host at 10.128.0.169:44653 2022/02/16 23:44:00 checking machine... 2022/02/16 23:44:00 checking revisions... 2022/02/16 23:44:00 testing simple program... syzkaller login: [ 48.179853][ T3600] cgroup: Unknown subsys name 'net' [ 48.353192][ T3600] cgroup: Unknown subsys name 'rlimit' [ 49.636675][ T3606] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.644709][ T3606] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.652458][ T3606] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.661258][ T3606] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.669149][ T3606] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.676573][ T3606] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 49.768706][ T3603] chnl_net:caif_netlink_parms(): no params data found [ 49.811369][ T3603] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.819407][ T3603] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.827738][ T3603] device bridge_slave_0 entered promiscuous mode [ 49.837227][ T3603] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.844872][ T3603] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.852987][ T3603] device bridge_slave_1 entered promiscuous mode [ 49.874060][ T3603] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.885159][ T3603] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.909517][ T3603] team0: Port device team_slave_0 added [ 49.917819][ T3603] team0: Port device team_slave_1 added [ 49.934513][ T3603] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.941936][ T3603] 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. [ 49.968237][ T3603] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.981455][ T3603] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.989079][ T3603] 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. [ 50.017214][ T3603] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.041618][ T3603] [ 50.044223][ T3603] ============================= [ 50.049291][ T3603] WARNING: suspicious RCU usage [ 50.054313][ T3603] 5.17.0-rc4-next-20220216-syzkaller #0 Not tainted [ 50.060954][ T3603] ----------------------------- [ 50.065825][ T3603] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 50.074555][ T3603] [ 50.074555][ T3603] other info that might help us debug this: [ 50.074555][ T3603] [ 50.084927][ T3603] [ 50.084927][ T3603] rcu_scheduler_active = 2, debug_locks = 1 [ 50.093051][ T3603] 2 locks held by syz-executor.0/3603: [ 50.098654][ T3603] #0: ffffffff8d3390e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 50.108150][ T3603] #1: ffff88801ed795f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 50.118338][ T3603] [ 50.118338][ T3603] stack backtrace: [ 50.124332][ T3603] CPU: 1 PID: 3603 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220216-syzkaller #0 [ 50.134224][ T3603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.144445][ T3603] Call Trace: [ 50.147892][ T3603] [ 50.150823][ T3603] dump_stack_lvl+0xcd/0x134 [ 50.155406][ T3603] hsr_node_get_first+0x9b/0xb0 [ 50.160247][ T3603] hsr_create_self_node+0x22d/0x650 [ 50.165439][ T3603] hsr_dev_finalize+0x2c1/0x7d0 [ 50.170302][ T3603] hsr_newlink+0x315/0x730 [ 50.174741][ T3603] ? hsr_dellink+0x130/0x130 [ 50.179348][ T3603] ? rtnl_create_link+0x7e8/0xc00 [ 50.184381][ T3603] ? hsr_dellink+0x130/0x130 [ 50.188974][ T3603] __rtnl_newlink+0x107c/0x1760 [ 50.193822][ T3603] ? rtnl_setlink+0x3c0/0x3c0 [ 50.198508][ T3603] ? is_bpf_text_address+0x77/0x170 [ 50.203717][ T3603] ? lock_downgrade+0x6e0/0x6e0 [ 50.208577][ T3603] ? unwind_next_frame+0xee1/0x1ce0 [ 50.213764][ T3603] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.219838][ T3603] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 50.225554][ T3603] ? is_bpf_text_address+0x99/0x170 [ 50.230754][ T3603] ? kernel_text_address+0x39/0x80 [ 50.235886][ T3603] ? __kernel_text_address+0x9/0x30 [ 50.241280][ T3603] ? unwind_get_return_address+0x51/0x90 [ 50.246941][ T3603] ? create_prof_cpu_mask+0x20/0x20 [ 50.252167][ T3603] ? arch_stack_walk+0x93/0xe0 [ 50.256998][ T3603] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 50.262488][ T3603] ? rcu_read_lock_sched_held+0x3a/0x70 [ 50.268047][ T3603] rtnl_newlink+0x64/0xa0 [ 50.272411][ T3603] ? __rtnl_newlink+0x1760/0x1760 [ 50.277549][ T3603] rtnetlink_rcv_msg+0x413/0xb80 [ 50.282501][ T3603] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 50.287298][ T3603] netlink_rcv_skb+0x153/0x420 [ 50.292264][ T3603] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 50.297038][ T3603] ? netlink_ack+0xa80/0xa80 [ 50.301634][ T3603] ? netlink_deliver_tap+0x1a2/0xc40 [ 50.306932][ T3603] ? netlink_deliver_tap+0x1b1/0xc40 [ 50.312251][ T3603] netlink_unicast+0x539/0x7e0 [ 50.317037][ T3603] ? netlink_attachskb+0x880/0x880 [ 50.322300][ T3603] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.328763][ T3603] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.335039][ T3603] ? __phys_addr_symbol+0x2c/0x70 [ 50.340257][ T3603] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 50.346173][ T3603] ? __check_object_size+0x16c/0x4f0 [ 50.351474][ T3603] netlink_sendmsg+0x904/0xe00 [ 50.356267][ T3603] ? netlink_unicast+0x7e0/0x7e0 [ 50.361220][ T3603] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.367532][ T3603] ? netlink_unicast+0x7e0/0x7e0 [ 50.372585][ T3603] sock_sendmsg+0xcf/0x120 [ 50.377032][ T3603] __sys_sendto+0x21c/0x320 [ 50.381554][ T3603] ? __ia32_sys_getpeername+0xb0/0xb0 [ 50.386940][ T3603] ? lockdep_hardirqs_on+0x79/0x100 [ 50.392167][ T3603] ? __context_tracking_exit+0xb8/0xe0 [ 50.397820][ T3603] ? lock_downgrade+0x6e0/0x6e0 [ 50.402700][ T3603] __x64_sys_sendto+0xdd/0x1b0 [ 50.407513][ T3603] ? lockdep_hardirqs_on+0x79/0x100 [ 50.412718][ T3603] ? syscall_enter_from_user_mode+0x21/0x70 [ 50.418624][ T3603] do_syscall_64+0x35/0xb0 [ 50.423134][ T3603] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.429041][ T3603] RIP: 0033:0x7fa2475d4e1c [ 50.433456][ T3603] 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 [ 50.453345][ T3603] RSP: 002b:00007ffeef1a6690 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 50.461775][ T3603] RAX: ffffffffffffffda RBX: 00007fa24866d320 RCX: 00007fa2475d4e1c [ 50.469836][ T3603] RDX: 0000000000000048 RSI: 00007fa24866d370 RDI: 0000000000000003 [ 50.477890][ T3603] RBP: 0000000000000000 R08: 00007ffeef1a66e4 R09: 000000000000000c [ 50.485859][ T3603] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 50.493913][ T3603] R13: 00007fa24866d370 R14: 0000000000000003 R15: 0000000000000000 [ 50.501906][ T3603] [ 50.512136][ T3603] device hsr_slave_0 entered promiscuous mode [ 50.519482][ T3603] device hsr_slave_1 entered promiscuous mode [ 50.601858][ T3603] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.612305][ T3603] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.621512][ T3603] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.631274][ T3603] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.652355][ T3603] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.659708][ T3603] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.667955][ T3603] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.675169][ T3603] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.735476][ T3603] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.750951][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.763994][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.774973][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.783861][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.801414][ T3603] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.814114][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.823207][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.832201][ T3615] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.839482][ T3615] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.872898][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.882113][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.893026][ T3616] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.900257][ T3616] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.908839][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.917600][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.935709][ T3603] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 50.947451][ T3603] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 50.960714][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.969739][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.978413][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready executing program [ 50.987446][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.998270][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.007079][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.016370][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.024832][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.038261][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.046378][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.063556][ T3603] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.072459][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.080208][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.189781][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.198908][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.211945][ T3603] device veth0_vlan entered promiscuous mode [ 51.220150][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.229298][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.238726][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.246947][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.258334][ T3603] device veth1_vlan entered promiscuous mode [ 51.277596][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.285941][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.294441][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.303390][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.312605][ T3603] device veth0_macvtap entered promiscuous mode [ 51.322598][ T3603] device veth1_macvtap entered promiscuous mode [ 51.338894][ T3603] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.347102][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.355319][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.363853][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.373517][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.385455][ T3603] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.393006][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.402219][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.414184][ T3603] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.423275][ T3603] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.432435][ T3603] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.441994][ T3603] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.503051][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.519972][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.531483][ T1095] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.532410][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.540099][ T1095] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.557298][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/16 23:44:03 building call list... [ 51.706949][ T3617] Bluetooth: hci0: command 0x0409 tx timeout [ 51.840977][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.899971][ T3598] can: request_module (can-proto-0) failed. [ 53.923747][ T3598] can: request_module (can-proto-0) failed. [ 53.945180][ T3598] can: request_module (can-proto-0) failed. executing program [ 54.047463][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.301895][ T3603] syz-executor.0 (3603) used greatest stack depth: 22080 bytes left