forked to background, child pid 3171 no interfaces have a carrier [ 29.834623][ T3172] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.845420][ T3172] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. 2022/02/14 07:15:47 fuzzer started 2022/02/14 07:15:47 connecting to host at 10.128.0.169:39149 2022/02/14 07:15:47 checking machine... 2022/02/14 07:15:47 checking revisions... 2022/02/14 07:15:47 testing simple program... syzkaller login: [ 46.665363][ T3593] cgroup: Unknown subsys name 'net' [ 46.771474][ T3593] cgroup: Unknown subsys name 'rlimit' [ 48.025192][ T3596] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.033196][ T3596] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.041215][ T3596] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.049216][ T3599] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.057382][ T3599] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 48.064843][ T3599] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 48.153135][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 48.197046][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.204699][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.212618][ T3595] device bridge_slave_0 entered promiscuous mode [ 48.221848][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.229124][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.237244][ T3595] device bridge_slave_1 entered promiscuous mode [ 48.258969][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.269915][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.292319][ T3595] team0: Port device team_slave_0 added [ 48.299857][ T3595] team0: Port device team_slave_1 added [ 48.317064][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.324008][ 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. [ 48.350432][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.363200][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.370290][ 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. [ 48.396307][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.419435][ T3595] [ 48.421877][ T3595] ============================= [ 48.426756][ T3595] WARNING: suspicious RCU usage [ 48.431603][ T3595] 5.17.0-rc4-next-20220214-syzkaller #0 Not tainted [ 48.438216][ T3595] ----------------------------- [ 48.443057][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 48.451353][ T3595] [ 48.451353][ T3595] other info that might help us debug this: [ 48.451353][ T3595] [ 48.461609][ T3595] [ 48.461609][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 48.469717][ T3595] 2 locks held by syz-executor.0/3595: [ 48.475206][ T3595] #0: ffffffff8d336928 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 48.484704][ T3595] #1: ffff888078ed15f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 48.495327][ T3595] [ 48.495327][ T3595] stack backtrace: [ 48.501576][ T3595] CPU: 1 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220214-syzkaller #0 [ 48.511569][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.521612][ T3595] Call Trace: [ 48.524880][ T3595] [ 48.527798][ T3595] dump_stack_lvl+0xcd/0x134 [ 48.532384][ T3595] hsr_node_get_first+0x9b/0xb0 [ 48.537231][ T3595] hsr_create_self_node+0x22d/0x650 [ 48.542424][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 48.547287][ T3595] hsr_newlink+0x315/0x730 [ 48.551688][ T3595] ? hsr_dellink+0x130/0x130 [ 48.556264][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 48.561292][ T3595] ? hsr_dellink+0x130/0x130 [ 48.565881][ T3595] __rtnl_newlink+0x107c/0x1760 [ 48.570739][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 48.575437][ T3595] ? is_bpf_text_address+0x77/0x170 [ 48.580658][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 48.585508][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 48.590692][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 48.596760][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 48.602474][ T3595] ? is_bpf_text_address+0x99/0x170 [ 48.607674][ T3595] ? kernel_text_address+0x39/0x80 [ 48.612793][ T3595] ? __kernel_text_address+0x9/0x30 [ 48.617989][ T3595] ? unwind_get_return_address+0x51/0x90 [ 48.623619][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 48.628823][ T3595] ? arch_stack_walk+0x93/0xe0 [ 48.633655][ T3595] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 48.639121][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 48.644671][ T3595] rtnl_newlink+0x64/0xa0 [ 48.648996][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 48.654019][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 48.658965][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 48.663755][ T3595] netlink_rcv_skb+0x153/0x420 [ 48.668535][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 48.673385][ T3595] ? netlink_ack+0xa80/0xa80 [ 48.677968][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 48.683253][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 48.688541][ T3595] netlink_unicast+0x539/0x7e0 [ 48.693309][ T3595] ? netlink_attachskb+0x880/0x880 [ 48.698420][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 48.704667][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 48.710924][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 48.715948][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 48.721669][ T3595] ? __check_object_size+0x16c/0x4f0 [ 48.726957][ T3595] netlink_sendmsg+0x904/0xe00 [ 48.731727][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 48.736677][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 48.742926][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 48.747861][ T3595] sock_sendmsg+0xcf/0x120 [ 48.752295][ T3595] __sys_sendto+0x21c/0x320 [ 48.756826][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 48.762223][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 48.767446][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 48.772915][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 48.777784][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 48.782550][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 48.787750][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 48.793648][ T3595] do_syscall_64+0x35/0xb0 [ 48.798086][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 48.803990][ T3595] RIP: 0033:0x7f4ccd432e1c [ 48.808409][ 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 [ 48.828333][ T3595] RSP: 002b:00007fff399bf1e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 48.836839][ T3595] RAX: ffffffffffffffda RBX: 00007f4cce4cb320 RCX: 00007f4ccd432e1c [ 48.844891][ T3595] RDX: 0000000000000048 RSI: 00007f4cce4cb370 RDI: 0000000000000003 [ 48.852854][ T3595] RBP: 0000000000000000 R08: 00007fff399bf234 R09: 000000000000000c [ 48.860815][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 48.868775][ T3595] R13: 00007f4cce4cb370 R14: 0000000000000003 R15: 0000000000000000 [ 48.876758][ T3595] [ 48.887454][ T3595] device hsr_slave_0 entered promiscuous mode [ 48.894279][ T3595] device hsr_slave_1 entered promiscuous mode [ 48.975620][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.986189][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.995649][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.005412][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.026429][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.033665][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.041705][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.048821][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.110766][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.122841][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.134647][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.156186][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.166718][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.180912][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.195910][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.205657][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.214266][ T3606] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.221364][ T3606] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.244013][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.253095][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.261792][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.268890][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.276470][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 49.285798][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 49.297030][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 49.306260][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.315436][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.331398][ T3595] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.342181][ T3595] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.356870][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 49.365640][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.373972][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 49.382871][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.391732][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 49.400294][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 49.408860][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.430291][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.437515][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.445341][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.556509][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 49.565178][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.579667][ T3595] device veth0_vlan entered promiscuous mode [ 49.586423][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 49.595936][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.606904][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.614711][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.626329][ T3595] device veth1_vlan entered promiscuous mode [ 49.643262][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.652128][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.660249][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 49.668864][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.678718][ T3595] device veth0_macvtap entered promiscuous mode [ 49.689010][ T3595] device veth1_macvtap entered promiscuous mode [ 49.703759][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.711532][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.720110][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 49.728228][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 49.737300][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.749247][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.757968][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 49.766902][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.777837][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.786908][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.796543][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.805545][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.868914][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 49.876987][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.891354][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 49.909007][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 49.917004][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.927503][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/14 07:15:50 building call list... [ 50.095454][ T14] Bluetooth: hci0: command 0x0409 tx timeout [ 50.193241][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 52.166597][ T3587] can: request_module (can-proto-0) failed. [ 52.189458][ T3587] can: request_module (can-proto-0) failed. [ 52.210807][ T3587] can: request_module (can-proto-0) failed. executing program