forked to background, child pid 3176 no interfaces have a carrier [ 29.259648][ T3177] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.270454][ T3177] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. 2022/03/02 00:19:08 fuzzer started 2022/03/02 00:19:08 connecting to host at 10.128.0.169:37315 2022/03/02 00:19:08 checking machine... 2022/03/02 00:19:08 checking revisions... 2022/03/02 00:19:08 testing simple program... syzkaller login: [ 49.629793][ T3597] cgroup: Unknown subsys name 'net' [ 49.754130][ T3597] cgroup: Unknown subsys name 'rlimit' [ 50.949017][ T3600] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.957661][ T3600] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.965731][ T3600] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.975657][ T3600] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.985036][ T3600] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.993210][ T3600] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.093740][ T3599] chnl_net:caif_netlink_parms(): no params data found [ 51.139881][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.147955][ T3599] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.156034][ T3599] device bridge_slave_0 entered promiscuous mode [ 51.165453][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.172793][ T3599] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.181425][ T3599] device bridge_slave_1 entered promiscuous mode [ 51.203671][ T3599] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.216206][ T3599] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.239433][ T3599] team0: Port device team_slave_0 added [ 51.248541][ T3599] team0: Port device team_slave_1 added [ 51.268019][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.275347][ T3599] 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. [ 51.304270][ T3599] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.318286][ T3599] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.327043][ T3599] 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. [ 51.353472][ T3599] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.378220][ T3599] [ 51.380672][ T3599] ============================= [ 51.385589][ T3599] WARNING: suspicious RCU usage [ 51.390634][ T3599] 5.17.0-rc4-syzkaller-01377-g530e214c5b5a #0 Not tainted [ 51.398145][ T3599] ----------------------------- [ 51.403182][ T3599] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 51.411680][ T3599] [ 51.411680][ T3599] other info that might help us debug this: [ 51.411680][ T3599] [ 51.422130][ T3599] [ 51.422130][ T3599] rcu_scheduler_active = 2, debug_locks = 1 [ 51.430300][ T3599] 2 locks held by syz-executor.0/3599: [ 51.435808][ T3599] #0: ffffffff8d3308e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 51.445380][ T3599] #1: ffff88806eaa15f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 51.456763][ T3599] [ 51.456763][ T3599] stack backtrace: [ 51.462834][ T3599] CPU: 0 PID: 3599 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-01377-g530e214c5b5a #0 [ 51.473936][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.484193][ T3599] Call Trace: [ 51.487642][ T3599] [ 51.490566][ T3599] dump_stack_lvl+0xcd/0x134 [ 51.495251][ T3599] hsr_node_get_first+0x9b/0xb0 [ 51.500124][ T3599] hsr_create_self_node+0x22d/0x650 [ 51.505499][ T3599] hsr_dev_finalize+0x2c1/0x7d0 [ 51.511129][ T3599] hsr_newlink+0x315/0x730 [ 51.515719][ T3599] ? hsr_dellink+0x130/0x130 [ 51.520311][ T3599] ? rtnl_create_link+0x7e8/0xc00 [ 51.525367][ T3599] ? hsr_dellink+0x130/0x130 [ 51.529973][ T3599] __rtnl_newlink+0x107c/0x1760 [ 51.534903][ T3599] ? rtnl_setlink+0x3c0/0x3c0 [ 51.539604][ T3599] ? is_bpf_text_address+0x77/0x170 [ 51.544822][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 51.549676][ T3599] ? unwind_next_frame+0xee1/0x1ce0 [ 51.554865][ T3599] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.561076][ T3599] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 51.567016][ T3599] ? is_bpf_text_address+0x99/0x170 [ 51.572223][ T3599] ? kernel_text_address+0x39/0x80 [ 51.577429][ T3599] ? __kernel_text_address+0x9/0x30 [ 51.582794][ T3599] ? unwind_get_return_address+0x51/0x90 [ 51.588638][ T3599] ? create_prof_cpu_mask+0x20/0x20 [ 51.593983][ T3599] ? arch_stack_walk+0x93/0xe0 [ 51.598791][ T3599] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 51.604289][ T3599] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.610258][ T3599] rtnl_newlink+0x64/0xa0 [ 51.614594][ T3599] ? __rtnl_newlink+0x1760/0x1760 [ 51.619629][ T3599] rtnetlink_rcv_msg+0x413/0xb80 [ 51.624772][ T3599] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.629755][ T3599] netlink_rcv_skb+0x153/0x420 [ 51.634986][ T3599] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.639861][ T3599] ? netlink_ack+0xa60/0xa60 [ 51.644447][ T3599] ? netlink_deliver_tap+0x1a2/0xc40 [ 51.649722][ T3599] ? netlink_deliver_tap+0x1b1/0xc40 [ 51.655260][ T3599] netlink_unicast+0x539/0x7e0 [ 51.660105][ T3599] ? netlink_attachskb+0x880/0x880 [ 51.665471][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.671896][ T3599] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.678821][ T3599] ? __phys_addr_symbol+0x2c/0x70 [ 51.683920][ T3599] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 51.689976][ T3599] ? __check_object_size+0x16e/0x310 [ 51.695256][ T3599] netlink_sendmsg+0x904/0xe00 [ 51.700275][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 51.705289][ T3599] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.711604][ T3599] ? netlink_unicast+0x7e0/0x7e0 [ 51.716560][ T3599] sock_sendmsg+0xcf/0x120 [ 51.721241][ T3599] __sys_sendto+0x21c/0x320 [ 51.725837][ T3599] ? __ia32_sys_getpeername+0xb0/0xb0 [ 51.731371][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 51.736700][ T3599] ? __context_tracking_exit+0xb8/0xe0 [ 51.742227][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 51.747252][ T3599] __x64_sys_sendto+0xdd/0x1b0 [ 51.752078][ T3599] ? lockdep_hardirqs_on+0x79/0x100 [ 51.757303][ T3599] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.763300][ T3599] do_syscall_64+0x35/0xb0 [ 51.767713][ T3599] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.773671][ T3599] RIP: 0033:0x7f05cfe2ee0c [ 51.778261][ T3599] 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 [ 51.798171][ T3599] RSP: 002b:00007ffcc96551e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 51.806837][ T3599] RAX: ffffffffffffffda RBX: 00007f05d0ec7320 RCX: 00007f05cfe2ee0c [ 51.814914][ T3599] RDX: 0000000000000048 RSI: 00007f05d0ec7370 RDI: 0000000000000003 [ 51.822985][ T3599] RBP: 0000000000000000 R08: 00007ffcc9655234 R09: 000000000000000c [ 51.831436][ T3599] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 51.839773][ T3599] R13: 00007f05d0ec7370 R14: 0000000000000003 R15: 0000000000000000 [ 51.847845][ T3599] [ 51.855077][ T3599] device hsr_slave_0 entered promiscuous mode [ 51.862640][ T3599] device hsr_slave_1 entered promiscuous mode [ 51.950768][ T3599] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.964613][ T3599] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.974261][ T3599] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.984308][ T3599] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.009559][ T3599] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.017166][ T3599] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.025429][ T3599] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.032760][ T3599] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.081645][ T3599] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.095132][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.110414][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.119685][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.130891][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.153449][ T3599] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.164117][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.173178][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.182925][ T1143] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.190835][ T1143] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.202816][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.212040][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.221555][ T3610] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.229498][ T3610] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.246983][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.256838][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.265691][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.275053][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.284974][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.297825][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.307699][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.324998][ T3599] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 52.335881][ T3599] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.350487][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.359660][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.369347][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready executing program [ 52.379731][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.389028][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.407494][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.415320][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.431112][ T3599] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.550635][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.561034][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.572420][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.581843][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.592944][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.603257][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.612188][ T3599] device veth0_vlan entered promiscuous mode [ 52.624018][ T3599] device veth1_vlan entered promiscuous mode [ 52.643416][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.652417][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.660846][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.670189][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.681536][ T3599] device veth0_macvtap entered promiscuous mode [ 52.695090][ T3599] device veth1_macvtap entered promiscuous mode [ 52.713360][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.725016][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.734291][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.744733][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.754519][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.766033][ T3599] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.776957][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.786103][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.797534][ T3599] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.807403][ T3599] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.818162][ T3599] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.827547][ T3599] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.904959][ T54] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.913700][ T54] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.934145][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.945622][ T54] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.955977][ T54] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.965806][ T1143] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/03/02 00:19:11 building call list... [ 53.017825][ T3609] Bluetooth: hci0: command 0x0409 tx timeout [ 53.254228][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.249628][ T3595] can: request_module (can-proto-0) failed. [ 55.278112][ T3595] can: request_module (can-proto-0) failed. [ 55.299408][ T3595] can: request_module (can-proto-0) failed. executing program [ 55.547866][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0