forked to background, child pid 3173 no interfaces have a carrier [ 30.398717][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.411339][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. 2022/02/08 05:51:51 fuzzer started 2022/02/08 05:51:52 connecting to host at 10.128.0.169:33777 2022/02/08 05:51:52 checking machine... 2022/02/08 05:51:52 checking revisions... 2022/02/08 05:51:52 testing simple program... syzkaller login: [ 51.110984][ T3593] cgroup: Unknown subsys name 'net' [ 51.222926][ T3593] cgroup: Unknown subsys name 'rlimit' [ 52.447389][ T3597] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.455500][ T3597] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.463006][ T3597] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.471608][ T3597] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.479416][ T3599] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.486998][ T3599] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.576110][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 52.618750][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.626964][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.635115][ T3595] device bridge_slave_0 entered promiscuous mode [ 52.644327][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.651439][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.659945][ T3595] device bridge_slave_1 entered promiscuous mode [ 52.680456][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.691392][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.715123][ T3595] team0: Port device team_slave_0 added [ 52.722847][ T3595] team0: Port device team_slave_1 added [ 52.740334][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.747310][ T3595] 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. [ 52.773578][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.786431][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.794621][ T3595] 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. [ 52.821012][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.844948][ T3595] [ 52.847399][ T3595] ============================= [ 52.852233][ T3595] WARNING: suspicious RCU usage [ 52.857117][ T3595] 5.17.0-rc3-next-20220208-syzkaller #0 Not tainted [ 52.863773][ T3595] ----------------------------- [ 52.868611][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.876788][ T3595] [ 52.876788][ T3595] other info that might help us debug this: [ 52.876788][ T3595] [ 52.887042][ T3595] [ 52.887042][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 52.895150][ T3595] 2 locks held by syz-executor.0/3595: [ 52.900621][ T3595] #0: ffffffff8d3357e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 52.910152][ T3595] #1: ffff88801ef915f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 52.920396][ T3595] [ 52.920396][ T3595] stack backtrace: [ 52.926314][ T3595] CPU: 1 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc3-next-20220208-syzkaller #0 [ 52.936213][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.946276][ T3595] Call Trace: [ 52.949649][ T3595] [ 52.952567][ T3595] dump_stack_lvl+0xcd/0x134 [ 52.957159][ T3595] hsr_node_get_first+0x9b/0xb0 [ 52.962011][ T3595] hsr_create_self_node+0x22d/0x650 [ 52.967222][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 52.972075][ T3595] hsr_newlink+0x315/0x730 [ 52.976488][ T3595] ? hsr_dellink+0x130/0x130 [ 52.981092][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 52.986114][ T3595] ? hsr_dellink+0x130/0x130 [ 52.990697][ T3595] __rtnl_newlink+0x107c/0x1760 [ 52.995552][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 53.000323][ T3595] ? is_bpf_text_address+0x77/0x170 [ 53.005530][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 53.010399][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 53.015614][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.021690][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.027434][ T3595] ? is_bpf_text_address+0x99/0x170 [ 53.032642][ T3595] ? kernel_text_address+0x39/0x80 [ 53.037753][ T3595] ? __kernel_text_address+0x9/0x30 [ 53.042951][ T3595] ? unwind_get_return_address+0x51/0x90 [ 53.048592][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 53.053791][ T3595] ? arch_stack_walk+0x93/0xe0 [ 53.058602][ T3595] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 53.064070][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.069626][ T3595] rtnl_newlink+0x64/0xa0 [ 53.073959][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 53.078981][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 53.084019][ T3595] ? rtnl_newlink+0xa0/0xa0 [ 53.088555][ T3595] netlink_rcv_skb+0x153/0x420 [ 53.093325][ T3595] ? rtnl_newlink+0xa0/0xa0 [ 53.097833][ T3595] ? netlink_ack+0xa80/0xa80 [ 53.102510][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.107836][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.113235][ T3595] netlink_unicast+0x539/0x7e0 [ 53.118010][ T3595] ? netlink_attachskb+0x880/0x880 [ 53.123122][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.129390][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.135744][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 53.140782][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.146520][ T3595] ? __check_object_size+0x16c/0x4f0 [ 53.151837][ T3595] netlink_sendmsg+0x904/0xe00 [ 53.156633][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 53.161602][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.167876][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 53.172851][ T3595] sock_sendmsg+0xcf/0x120 [ 53.177285][ T3595] __sys_sendto+0x21c/0x320 [ 53.181801][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.187182][ T3595] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 53.193201][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 53.198688][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 53.203553][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 53.208429][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 53.213207][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 53.218424][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.224327][ T3595] do_syscall_64+0x35/0xb0 [ 53.228745][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.234633][ T3595] RIP: 0033:0x7fa44acf6e1c [ 53.239047][ T3595] 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 [ 53.258653][ T3595] RSP: 002b:00007fff360164d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.267062][ T3595] RAX: ffffffffffffffda RBX: 00007fa44bd8f320 RCX: 00007fa44acf6e1c [ 53.275035][ T3595] RDX: 0000000000000048 RSI: 00007fa44bd8f370 RDI: 0000000000000003 [ 53.283001][ T3595] RBP: 0000000000000000 R08: 00007fff36016524 R09: 000000000000000c [ 53.290965][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.299102][ T3595] R13: 00007fa44bd8f370 R14: 0000000000000003 R15: 0000000000000000 [ 53.307083][ T3595] [ 53.317190][ T3595] device hsr_slave_0 entered promiscuous mode [ 53.324436][ T3595] device hsr_slave_1 entered promiscuous mode [ 53.404773][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.415525][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.425303][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.434691][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.455616][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.462771][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.470560][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.477652][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.522136][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.535385][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.546395][ T26] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.555370][ T26] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.563810][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.576411][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.588343][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.597350][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.605921][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.613000][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.640871][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.649607][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.658722][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.665876][ T3605] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.673646][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.682371][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.691115][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.700526][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.709023][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.717507][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.726080][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.734565][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.747792][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.755820][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.764412][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.775584][ T3595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.794069][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.801502][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.812695][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 53.954933][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.964782][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.980930][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.990547][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.001180][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.009983][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.018080][ T3595] device veth0_vlan entered promiscuous mode [ 54.029220][ T3595] device veth1_vlan entered promiscuous mode [ 54.046471][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.055523][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.063789][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.072213][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.083718][ T3595] device veth0_macvtap entered promiscuous mode [ 54.092703][ T3595] device veth1_macvtap entered promiscuous mode [ 54.108685][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.117549][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.125985][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.134716][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.144660][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.158291][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.165630][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.175220][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.186001][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.194956][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.203787][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.212466][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.278470][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.292920][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.304367][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.314739][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.324085][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.332965][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/08 05:51:55 building call list... [ 54.580589][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.495245][ T3617] can: request_module (can-proto-0) failed. [ 56.517934][ T3617] can: request_module (can-proto-0) failed. [ 56.538804][ T3617] can: request_module (can-proto-0) failed. [ 56.809904][ T3595] syz-executor.0 (3595) used greatest stack depth: 22584 bytes left executing program [ 56.884180][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0