no interfaces have a carrier [ 28.507745][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.518788][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 28.956796][ T3266] sshd (3266) used greatest stack depth: 22736 bytes left OK syzkaller Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts. 2022/02/17 01:24:04 fuzzer started 2022/02/17 01:24:04 connecting to host at 10.128.0.169:33595 2022/02/17 01:24:04 checking machine... 2022/02/17 01:24:04 checking revisions... 2022/02/17 01:24:04 testing simple program... syzkaller login: [ 51.213470][ T3601] cgroup: Unknown subsys name 'net' [ 51.330215][ T3601] cgroup: Unknown subsys name 'rlimit' [ 52.544102][ T3607] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.552605][ T3607] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.561338][ T3607] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.569752][ T3607] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.577435][ T3607] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.585025][ T3607] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.674937][ T3603] chnl_net:caif_netlink_parms(): no params data found [ 52.718299][ T3603] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.726032][ T3603] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.734558][ T3603] device bridge_slave_0 entered promiscuous mode [ 52.743761][ T3603] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.751015][ T3603] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.759021][ T3603] device bridge_slave_1 entered promiscuous mode [ 52.779361][ T3603] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.790357][ T3603] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.813417][ T3603] team0: Port device team_slave_0 added [ 52.820940][ T3603] team0: Port device team_slave_1 added [ 52.838109][ T3603] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.845248][ 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. [ 52.871340][ T3603] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.884747][ T3603] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.891700][ 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. [ 52.917947][ T3603] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.941593][ T3603] [ 52.944086][ T3603] ============================= [ 52.948931][ T3603] WARNING: suspicious RCU usage [ 52.953802][ T3603] 5.17.0-rc2-syzkaller-00971-g9b6eb0478dfa #0 Not tainted [ 52.960909][ T3603] ----------------------------- [ 52.965781][ T3603] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.973955][ T3603] [ 52.973955][ T3603] other info that might help us debug this: [ 52.973955][ T3603] [ 52.984221][ T3603] [ 52.984221][ T3603] rcu_scheduler_active = 2, debug_locks = 1 [ 52.992315][ T3603] 2 locks held by syz-executor.0/3603: [ 52.997859][ T3603] #0: ffffffff8d32caa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.007346][ T3603] #1: ffff8880741fd5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.017548][ T3603] [ 53.017548][ T3603] stack backtrace: [ 53.023473][ T3603] CPU: 0 PID: 3603 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00971-g9b6eb0478dfa #0 [ 53.033899][ T3603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.043953][ T3603] Call Trace: [ 53.047228][ T3603] [ 53.050156][ T3603] dump_stack_lvl+0xcd/0x134 [ 53.054756][ T3603] hsr_node_get_first+0x9b/0xb0 [ 53.059617][ T3603] hsr_create_self_node+0x22d/0x650 [ 53.064828][ T3603] hsr_dev_finalize+0x2c1/0x7d0 [ 53.069714][ T3603] hsr_newlink+0x315/0x730 [ 53.074133][ T3603] ? hsr_dellink+0x130/0x130 [ 53.078726][ T3603] ? rtnl_create_link+0x7e8/0xc00 [ 53.083757][ T3603] ? hsr_dellink+0x130/0x130 [ 53.088348][ T3603] __rtnl_newlink+0x107c/0x1760 [ 53.093234][ T3603] ? rtnl_setlink+0x3c0/0x3c0 [ 53.097935][ T3603] ? is_bpf_text_address+0x77/0x170 [ 53.103144][ T3603] ? lock_downgrade+0x6e0/0x6e0 [ 53.108003][ T3603] ? unwind_next_frame+0xee1/0x1ce0 [ 53.113203][ T3603] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.119274][ T3603] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.125007][ T3603] ? is_bpf_text_address+0x99/0x170 [ 53.130211][ T3603] ? kernel_text_address+0x39/0x80 [ 53.135328][ T3603] ? __kernel_text_address+0x9/0x30 [ 53.140529][ T3603] ? unwind_get_return_address+0x51/0x90 [ 53.146163][ T3603] ? create_prof_cpu_mask+0x20/0x20 [ 53.151372][ T3603] ? arch_stack_walk+0x93/0xe0 [ 53.156224][ T3603] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 53.161707][ T3603] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.167263][ T3603] rtnl_newlink+0x64/0xa0 [ 53.171594][ T3603] ? __rtnl_newlink+0x1760/0x1760 [ 53.176636][ T3603] rtnetlink_rcv_msg+0x413/0xb80 [ 53.181590][ T3603] ? rtnl_newlink+0xa0/0xa0 [ 53.186114][ T3603] netlink_rcv_skb+0x153/0x420 [ 53.190882][ T3603] ? rtnl_newlink+0xa0/0xa0 [ 53.195392][ T3603] ? netlink_ack+0xa60/0xa60 [ 53.199985][ T3603] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.205463][ T3603] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.210765][ T3603] netlink_unicast+0x539/0x7e0 [ 53.215565][ T3603] ? netlink_attachskb+0x880/0x880 [ 53.220707][ T3603] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.226959][ T3603] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.233205][ T3603] ? __phys_addr_symbol+0x2c/0x70 [ 53.238234][ T3603] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.243958][ T3603] ? __check_object_size+0x16e/0x310 [ 53.249250][ T3603] netlink_sendmsg+0x904/0xe00 [ 53.254039][ T3603] ? netlink_unicast+0x7e0/0x7e0 [ 53.258987][ T3603] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.265237][ T3603] ? netlink_unicast+0x7e0/0x7e0 [ 53.270179][ T3603] sock_sendmsg+0xcf/0x120 [ 53.274604][ T3603] __sys_sendto+0x21c/0x320 [ 53.279113][ T3603] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.284487][ T3603] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 53.290495][ T3603] ? __context_tracking_exit+0xb8/0xe0 [ 53.295977][ T3603] ? lock_downgrade+0x6e0/0x6e0 [ 53.300846][ T3603] ? lock_downgrade+0x6e0/0x6e0 [ 53.305752][ T3603] __x64_sys_sendto+0xdd/0x1b0 [ 53.310557][ T3603] ? lockdep_hardirqs_on+0x79/0x100 [ 53.315776][ T3603] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.321704][ T3603] do_syscall_64+0x35/0xb0 [ 53.326147][ T3603] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.332049][ T3603] RIP: 0033:0x7f59d376fe1c [ 53.336485][ 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 [ 53.356111][ T3603] RSP: 002b:00007ffc3ab052c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.364524][ T3603] RAX: ffffffffffffffda RBX: 00007f59d4808320 RCX: 00007f59d376fe1c [ 53.372494][ T3603] RDX: 0000000000000048 RSI: 00007f59d4808370 RDI: 0000000000000003 [ 53.380460][ T3603] RBP: 0000000000000000 R08: 00007ffc3ab05314 R09: 000000000000000c [ 53.388436][ T3603] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.396410][ T3603] R13: 00007f59d4808370 R14: 0000000000000003 R15: 0000000000000000 [ 53.404404][ T3603] [ 53.417071][ T3603] device hsr_slave_0 entered promiscuous mode [ 53.424917][ T3603] device hsr_slave_1 entered promiscuous mode [ 53.548794][ T3603] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.561239][ T3603] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.573023][ T3603] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.588808][ T3603] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.610374][ T3603] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.617600][ T3603] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.625853][ T3603] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.632937][ T3603] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.676802][ T3603] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.690006][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.700524][ T21] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.709221][ T21] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.717768][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.731408][ T3603] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.748616][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.758149][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.767482][ T3614] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.774573][ T3614] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.785902][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.794920][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.803332][ T141] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.810428][ T141] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.823559][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.832170][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.846164][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.855802][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.865132][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.881379][ T3603] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.892533][ T3603] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.904699][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.914504][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.923154][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.932067][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.941146][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.949785][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.958600][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.977498][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready executing program [ 53.985155][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.998703][ T3603] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.104104][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.112742][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.128714][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.136982][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.147366][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.155384][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.165346][ T3603] device veth0_vlan entered promiscuous mode [ 54.177055][ T3603] device veth1_vlan entered promiscuous mode [ 54.196045][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.205207][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.213168][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.222306][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.234555][ T3603] device veth0_macvtap entered promiscuous mode [ 54.244325][ T3603] device veth1_macvtap entered promiscuous mode [ 54.258866][ T3603] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.267926][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.276331][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.285848][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.295397][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.308525][ T3603] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.316019][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.325060][ T3317] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.336899][ T3603] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.345926][ T3603] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.354668][ T3603] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.364076][ T3603] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.425446][ T44] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.433855][ T44] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.448863][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.464624][ T44] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.472761][ T44] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.482308][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 01:24:08 building call list... [ 54.614549][ T6] Bluetooth: hci0: command 0x0409 tx timeout [ 56.841462][ T3625] can: request_module (can-proto-0) failed. [ 56.865547][ T3625] can: request_module (can-proto-0) failed. [ 56.887429][ T3625] can: request_module (can-proto-0) failed. executing program [ 56.989534][ T44] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0