forked to background, child pid 3171 no interfaces have a carrier [ 27.482824][ T3172] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.494517][ T3172] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.33' (ECDSA) to the list of known hosts. 2022/02/14 07:15:51 fuzzer started 2022/02/14 07:15:52 connecting to host at 10.128.0.169:39769 2022/02/14 07:15:52 checking machine... 2022/02/14 07:15:52 checking revisions... 2022/02/14 07:15:52 testing simple program... syzkaller login: [ 49.234102][ T3592] cgroup: Unknown subsys name 'net' [ 49.337787][ T3592] cgroup: Unknown subsys name 'rlimit' [ 50.620882][ T3595] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.629903][ T3595] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.637670][ T3595] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.646230][ T3595] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.654143][ T3595] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.661555][ T3595] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.806282][ T3594] chnl_net:caif_netlink_parms(): no params data found [ 50.849696][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.857412][ T3594] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.866103][ T3594] device bridge_slave_0 entered promiscuous mode [ 50.875431][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.882828][ T3594] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.890641][ T3594] device bridge_slave_1 entered promiscuous mode [ 50.911708][ T3594] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.922636][ T3594] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.945455][ T3594] team0: Port device team_slave_0 added [ 50.952784][ T3594] team0: Port device team_slave_1 added [ 50.971716][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.978770][ 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. [ 51.004798][ T3594] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.017261][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.024280][ 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. [ 51.050310][ T3594] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.076548][ T3594] [ 51.079019][ T3594] ============================= [ 51.083937][ T3594] WARNING: suspicious RCU usage [ 51.088818][ T3594] 5.17.0-rc4-next-20220214-syzkaller #0 Not tainted [ 51.095402][ T3594] ----------------------------- [ 51.100281][ T3594] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 51.108456][ T3594] [ 51.108456][ T3594] other info that might help us debug this: [ 51.108456][ T3594] [ 51.118745][ T3594] [ 51.118745][ T3594] rcu_scheduler_active = 2, debug_locks = 1 [ 51.126811][ T3594] 2 locks held by syz-executor.0/3594: [ 51.132314][ T3594] #0: ffffffff8d336928 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 51.141885][ T3594] #1: ffff888019dc55f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 51.152030][ T3594] [ 51.152030][ T3594] stack backtrace: [ 51.157927][ T3594] CPU: 0 PID: 3594 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220214-syzkaller #0 [ 51.167839][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.177898][ T3594] Call Trace: [ 51.181169][ T3594] [ 51.184097][ T3594] dump_stack_lvl+0xcd/0x134 [ 51.188691][ T3594] hsr_node_get_first+0x9b/0xb0 [ 51.193559][ T3594] hsr_create_self_node+0x22d/0x650 [ 51.198762][ T3594] hsr_dev_finalize+0x2c1/0x7d0 [ 51.203630][ T3594] hsr_newlink+0x315/0x730 [ 51.208067][ T3594] ? hsr_dellink+0x130/0x130 [ 51.212662][ T3594] ? rtnl_create_link+0x7e8/0xc00 [ 51.217691][ T3594] ? hsr_dellink+0x130/0x130 [ 51.222274][ T3594] __rtnl_newlink+0x107c/0x1760 [ 51.227135][ T3594] ? rtnl_setlink+0x3c0/0x3c0 [ 51.231820][ T3594] ? is_bpf_text_address+0x77/0x170 [ 51.237023][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 51.241882][ T3594] ? unwind_next_frame+0xee1/0x1ce0 [ 51.247082][ T3594] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.253158][ T3594] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 51.258886][ T3594] ? is_bpf_text_address+0x99/0x170 [ 51.264092][ T3594] ? kernel_text_address+0x39/0x80 [ 51.269204][ T3594] ? __kernel_text_address+0x9/0x30 [ 51.274417][ T3594] ? unwind_get_return_address+0x51/0x90 [ 51.280051][ T3594] ? create_prof_cpu_mask+0x20/0x20 [ 51.285252][ T3594] ? arch_stack_walk+0x93/0xe0 [ 51.290082][ T3594] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 51.295548][ T3594] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.301101][ T3594] rtnl_newlink+0x64/0xa0 [ 51.305428][ T3594] ? __rtnl_newlink+0x1760/0x1760 [ 51.310463][ T3594] rtnetlink_rcv_msg+0x413/0xb80 [ 51.315403][ T3594] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.320178][ T3594] netlink_rcv_skb+0x153/0x420 [ 51.324938][ T3594] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.329702][ T3594] ? netlink_ack+0xa80/0xa80 [ 51.334288][ T3594] ? netlink_deliver_tap+0x1a2/0xc40 [ 51.339574][ T3594] ? netlink_deliver_tap+0x1b1/0xc40 [ 51.344860][ T3594] netlink_unicast+0x539/0x7e0 [ 51.349626][ T3594] ? netlink_attachskb+0x880/0x880 [ 51.354732][ T3594] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.360984][ T3594] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.367242][ T3594] ? __phys_addr_symbol+0x2c/0x70 [ 51.372269][ T3594] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 51.377995][ T3594] ? __check_object_size+0x16c/0x4f0 [ 51.383292][ T3594] netlink_sendmsg+0x904/0xe00 [ 51.388067][ T3594] ? netlink_unicast+0x7e0/0x7e0 [ 51.393009][ T3594] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.399266][ T3594] ? netlink_unicast+0x7e0/0x7e0 [ 51.404200][ T3594] sock_sendmsg+0xcf/0x120 [ 51.408619][ T3594] __sys_sendto+0x21c/0x320 [ 51.413124][ T3594] ? __ia32_sys_getpeername+0xb0/0xb0 [ 51.418504][ T3594] ? lockdep_hardirqs_on+0x79/0x100 [ 51.423720][ T3594] ? __context_tracking_exit+0xb8/0xe0 [ 51.429186][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 51.434055][ T3594] __x64_sys_sendto+0xdd/0x1b0 [ 51.438818][ T3594] ? lockdep_hardirqs_on+0x79/0x100 [ 51.444019][ T3594] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.449917][ T3594] do_syscall_64+0x35/0xb0 [ 51.454329][ T3594] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.460231][ T3594] RIP: 0033:0x7f72b9d64e1c [ 51.464641][ 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 [ 51.484247][ T3594] RSP: 002b:00007ffc446753c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 51.492663][ T3594] RAX: ffffffffffffffda RBX: 00007f72badfd320 RCX: 00007f72b9d64e1c [ 51.500632][ T3594] RDX: 0000000000000048 RSI: 00007f72badfd370 RDI: 0000000000000003 [ 51.508596][ T3594] RBP: 0000000000000000 R08: 00007ffc44675414 R09: 000000000000000c [ 51.516563][ T3594] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 51.524523][ T3594] R13: 00007f72badfd370 R14: 0000000000000003 R15: 0000000000000000 [ 51.532504][ T3594] [ 51.541985][ T3594] device hsr_slave_0 entered promiscuous mode [ 51.549479][ T3594] device hsr_slave_1 entered promiscuous mode [ 51.631070][ T3594] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.642527][ T3594] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.651279][ T3594] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.660709][ T3594] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.683050][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.690330][ T3594] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.698247][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.705337][ T3594] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.751791][ T3594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.764285][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.774852][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.784201][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.792634][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.807819][ T3594] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.818622][ T1140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.827406][ T1140] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.837394][ T1140] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.844708][ T1140] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.856839][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.866694][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.875588][ T3603] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.882709][ T3603] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.897087][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.908490][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.927320][ T3594] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 51.938100][ T3594] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.952116][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.961011][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.970326][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.979715][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.988557][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.996875][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.006275][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.014851][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.023292][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.031212][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 52.052977][ T3594] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.063109][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.070921][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.180023][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.189201][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.206975][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.215650][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.226600][ T3594] device veth0_vlan entered promiscuous mode [ 52.233502][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.241275][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.254114][ T3594] device veth1_vlan entered promiscuous mode [ 52.273970][ T3594] device veth0_macvtap entered promiscuous mode [ 52.282852][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.291221][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.300184][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.309469][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.319291][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.330284][ T3594] device veth1_macvtap entered promiscuous mode [ 52.345374][ T3594] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.353130][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.361388][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.370154][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.383254][ T3594] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.391945][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.400807][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.411573][ T3594] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.421181][ T3594] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.430237][ T3594] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.440138][ T3594] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.499499][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.507515][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.523179][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.536700][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.545068][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.554274][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/14 07:15:55 building call list... [ 52.689569][ T6] Bluetooth: hci0: command 0x0409 tx timeout [ 52.829787][ T954] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.774502][ T3583] can: request_module (can-proto-0) failed. [ 54.797180][ T3583] can: request_module (can-proto-0) failed. [ 54.819040][ T3583] can: request_module (can-proto-0) failed. executing program [ 55.399336][ T954] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0