forked to background, child pid 3171 no interfaces have a carrier [ 28.174948][ T3172] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.191003][ T3172] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts. 2022/02/11 09:22:46 fuzzer started 2022/02/11 09:22:46 connecting to host at 10.128.0.169:38289 2022/02/11 09:22:46 checking machine... 2022/02/11 09:22:46 checking revisions... 2022/02/11 09:22:46 testing simple program... syzkaller login: [ 49.721151][ T3593] cgroup: Unknown subsys name 'net' [ 49.855058][ T3593] cgroup: Unknown subsys name 'rlimit' [ 51.056437][ T3597] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.064741][ T3597] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.072896][ T3597] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.080815][ T3597] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.088551][ T3597] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.095787][ T3597] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.198134][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 51.267469][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.275157][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.285387][ T3595] device bridge_slave_0 entered promiscuous mode [ 51.295730][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.303602][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.312100][ T3595] device bridge_slave_1 entered promiscuous mode [ 51.333109][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.343988][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.366102][ T3595] team0: Port device team_slave_0 added [ 51.373599][ T3595] team0: Port device team_slave_1 added [ 51.391422][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.398484][ 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. [ 51.424539][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.436976][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.443972][ 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. [ 51.469918][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.493688][ T3595] [ 51.496109][ T3595] ============================= [ 51.500991][ T3595] WARNING: suspicious RCU usage [ 51.505840][ T3595] 5.17.0-rc3-next-20220211-syzkaller #0 Not tainted [ 51.512476][ T3595] ----------------------------- [ 51.517321][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 51.525532][ T3595] [ 51.525532][ T3595] other info that might help us debug this: [ 51.525532][ T3595] [ 51.535803][ T3595] [ 51.535803][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 51.543902][ T3595] 2 locks held by syz-executor.0/3595: [ 51.549388][ T3595] #0: ffffffff8d3325a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 51.558854][ T3595] #1: ffff8880772ad5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 51.569005][ T3595] [ 51.569005][ T3595] stack backtrace: [ 51.574875][ T3595] CPU: 0 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc3-next-20220211-syzkaller #0 [ 51.584746][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.595044][ T3595] Call Trace: [ 51.598338][ T3595] [ 51.601259][ T3595] dump_stack_lvl+0xcd/0x134 [ 51.605846][ T3595] hsr_node_get_first+0x9b/0xb0 [ 51.610706][ T3595] hsr_create_self_node+0x22d/0x650 [ 51.615986][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 51.620833][ T3595] hsr_newlink+0x315/0x730 [ 51.625244][ T3595] ? hsr_dellink+0x130/0x130 [ 51.629836][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 51.634980][ T3595] ? hsr_dellink+0x130/0x130 [ 51.639571][ T3595] __rtnl_newlink+0x107c/0x1760 [ 51.644443][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 51.649121][ T3595] ? is_bpf_text_address+0x77/0x170 [ 51.654319][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 51.659265][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 51.664452][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.670516][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 51.676229][ T3595] ? is_bpf_text_address+0x99/0x170 [ 51.681427][ T3595] ? kernel_text_address+0x39/0x80 [ 51.686894][ T3595] ? __kernel_text_address+0x9/0x30 [ 51.692085][ T3595] ? unwind_get_return_address+0x51/0x90 [ 51.697704][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 51.702902][ T3595] ? arch_stack_walk+0x93/0xe0 [ 51.707688][ T3595] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 51.713232][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.718780][ T3595] rtnl_newlink+0x64/0xa0 [ 51.723099][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 51.728107][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 51.733034][ T3595] ? rtnl_newlink+0xa0/0xa0 [ 51.737529][ T3595] netlink_rcv_skb+0x153/0x420 [ 51.742277][ T3595] ? rtnl_newlink+0xa0/0xa0 [ 51.746763][ T3595] ? netlink_ack+0xa80/0xa80 [ 51.751345][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 51.756616][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 51.761888][ T3595] netlink_unicast+0x539/0x7e0 [ 51.766657][ T3595] ? netlink_attachskb+0x880/0x880 [ 51.771750][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.778065][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.784298][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 51.789315][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 51.795033][ T3595] ? __check_object_size+0x16c/0x4f0 [ 51.800315][ T3595] netlink_sendmsg+0x904/0xe00 [ 51.805064][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 51.810001][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.816311][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 51.821407][ T3595] sock_sendmsg+0xcf/0x120 [ 51.825905][ T3595] __sys_sendto+0x21c/0x320 [ 51.830395][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 51.835753][ T3595] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 51.841823][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 51.847282][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 51.852132][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 51.856984][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 51.861732][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 51.866920][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.872821][ T3595] do_syscall_64+0x35/0xb0 [ 51.877227][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.883116][ T3595] RIP: 0033:0x7f077a2bfe1c [ 51.887611][ 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 [ 51.907294][ T3595] RSP: 002b:00007ffcf80a56b0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 51.915691][ T3595] RAX: ffffffffffffffda RBX: 00007f077b358320 RCX: 00007f077a2bfe1c [ 51.923667][ T3595] RDX: 0000000000000048 RSI: 00007f077b358370 RDI: 0000000000000003 [ 51.931642][ T3595] RBP: 0000000000000000 R08: 00007ffcf80a5704 R09: 000000000000000c [ 51.939607][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 51.947700][ T3595] R13: 00007f077b358370 R14: 0000000000000003 R15: 0000000000000000 [ 51.955673][ T3595] [ 51.963077][ T3595] device hsr_slave_0 entered promiscuous mode [ 51.970540][ T3595] device hsr_slave_1 entered promiscuous mode [ 52.049624][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.059659][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.068192][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.078410][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.098475][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.105787][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.113674][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.120758][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.163015][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.176481][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.187051][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.195739][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.205004][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.219790][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.230025][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.239703][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.248090][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.255332][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.279620][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.288746][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.297036][ T14] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.304138][ T14] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.311892][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.321732][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.330619][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.339401][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.347695][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.356292][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.364657][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.373265][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.381482][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.389959][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.398885][ T3595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.421879][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.429663][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.437024][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.449193][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 52.577800][ T3595] device veth0_vlan entered promiscuous mode [ 52.587467][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.596261][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.605057][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.614515][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.623601][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.631451][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.643544][ T3595] device veth1_vlan entered promiscuous mode [ 52.661014][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.669281][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.677365][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.686531][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.697646][ T3595] device veth0_macvtap entered promiscuous mode [ 52.707514][ T3595] device veth1_macvtap entered promiscuous mode [ 52.722748][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.730759][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.739563][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.747360][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.756168][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.766955][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.776388][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.785341][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.794928][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.804550][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.813340][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.822808][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.881469][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.889694][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.903178][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.915763][ T45] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.924045][ T45] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.932595][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/11 09:22:50 building call list... [ 53.180232][ T45] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.072668][ T3592] can: request_module (can-proto-0) failed. [ 55.097187][ T3592] can: request_module (can-proto-0) failed. [ 55.117413][ T3592] can: request_module (can-proto-0) failed. executing program [ 55.701533][ T3595] syz-executor.0 (3595) used greatest stack depth: 21656 bytes left [ 55.728094][ T45] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0