Warning: Permanently added '10.128.0.250' (ECDSA) to the list of known hosts. 2022/02/17 14:06:08 fuzzer started 2022/02/17 14:06:08 connecting to host at 10.128.0.169:33997 2022/02/17 14:06:08 checking machine... 2022/02/17 14:06:08 checking revisions... 2022/02/17 14:06:08 testing simple program... syzkaller login: [ 51.183375][ T3593] cgroup: Unknown subsys name 'net' [ 51.321848][ T3593] cgroup: Unknown subsys name 'rlimit' [ 52.564396][ T3600] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.572683][ T3600] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.581174][ T3600] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.589347][ T3600] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.597912][ T3600] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.605957][ T3600] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.699434][ T3596] chnl_net:caif_netlink_parms(): no params data found [ 52.743144][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.751082][ T3596] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.759440][ T3596] device bridge_slave_0 entered promiscuous mode [ 52.768869][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.776631][ T3596] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.784734][ T3596] device bridge_slave_1 entered promiscuous mode [ 52.805891][ T3596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.817971][ T3596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.841004][ T3596] team0: Port device team_slave_0 added [ 52.849149][ T3596] team0: Port device team_slave_1 added [ 52.868625][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.876242][ T3596] 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. [ 52.903601][ T3596] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.917274][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.924747][ T3596] 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. [ 52.952189][ T3596] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.977581][ T3596] [ 52.980044][ T3596] ============================= [ 52.985278][ T3596] WARNING: suspicious RCU usage [ 52.990141][ T3596] 5.17.0-rc4-next-20220217-syzkaller #0 Not tainted [ 52.997404][ T3596] ----------------------------- [ 53.002577][ T3596] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 53.010982][ T3596] [ 53.010982][ T3596] other info that might help us debug this: [ 53.010982][ T3596] [ 53.021455][ T3596] [ 53.021455][ T3596] rcu_scheduler_active = 2, debug_locks = 1 [ 53.029791][ T3596] 2 locks held by syz-executor.0/3596: [ 53.035292][ T3596] #0: ffffffff8d539528 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.044812][ T3596] #1: ffff888075a4d5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.055272][ T3596] [ 53.055272][ T3596] stack backtrace: [ 53.061276][ T3596] CPU: 0 PID: 3596 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220217-syzkaller #0 [ 53.072302][ T3596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.082553][ T3596] Call Trace: [ 53.086025][ T3596] [ 53.089093][ T3596] dump_stack_lvl+0xcd/0x134 [ 53.093973][ T3596] hsr_node_get_first+0x9b/0xb0 [ 53.098847][ T3596] hsr_create_self_node+0x22d/0x650 [ 53.104142][ T3596] hsr_dev_finalize+0x2c1/0x7d0 [ 53.108998][ T3596] hsr_newlink+0x315/0x730 [ 53.113548][ T3596] ? hsr_dellink+0x130/0x130 [ 53.118238][ T3596] ? rtnl_create_link+0x7e8/0xc00 [ 53.123383][ T3596] ? hsr_dellink+0x130/0x130 [ 53.128096][ T3596] __rtnl_newlink+0x107c/0x1760 [ 53.133560][ T3596] ? rtnl_setlink+0x3c0/0x3c0 [ 53.138339][ T3596] ? is_bpf_text_address+0x77/0x170 [ 53.143670][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 53.148666][ T3596] ? unwind_next_frame+0xee1/0x1ce0 [ 53.153954][ T3596] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.160281][ T3596] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.166022][ T3596] ? is_bpf_text_address+0x99/0x170 [ 53.171380][ T3596] ? kernel_text_address+0x39/0x80 [ 53.176762][ T3596] ? __kernel_text_address+0x9/0x30 [ 53.182250][ T3596] ? unwind_get_return_address+0x51/0x90 [ 53.187980][ T3596] ? create_prof_cpu_mask+0x20/0x20 [ 53.193571][ T3596] ? arch_stack_walk+0x93/0xe0 [ 53.198596][ T3596] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 53.204090][ T3596] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.210097][ T3596] rtnl_newlink+0x64/0xa0 [ 53.214447][ T3596] ? __rtnl_newlink+0x1760/0x1760 [ 53.219571][ T3596] rtnetlink_rcv_msg+0x413/0xb80 [ 53.224788][ T3596] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.229577][ T3596] netlink_rcv_skb+0x153/0x420 [ 53.234355][ T3596] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.239304][ T3596] ? netlink_ack+0xa80/0xa80 [ 53.243981][ T3596] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.249274][ T3596] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.254582][ T3596] netlink_unicast+0x539/0x7e0 [ 53.259443][ T3596] ? netlink_attachskb+0x880/0x880 [ 53.264729][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.271786][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.278285][ T3596] ? __phys_addr_symbol+0x2c/0x70 [ 53.283357][ T3596] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.289203][ T3596] ? __check_object_size+0x16c/0x4f0 [ 53.294620][ T3596] netlink_sendmsg+0x904/0xe00 [ 53.300380][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 53.305360][ T3596] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.311759][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 53.316721][ T3596] sock_sendmsg+0xcf/0x120 [ 53.321208][ T3596] __sys_sendto+0x21c/0x320 [ 53.326086][ T3596] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.331587][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 53.336956][ T3596] ? __context_tracking_exit+0xb8/0xe0 [ 53.342444][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 53.347331][ T3596] __x64_sys_sendto+0xdd/0x1b0 [ 53.352314][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 53.357664][ T3596] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.363630][ T3596] do_syscall_64+0x35/0xb0 [ 53.368112][ T3596] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.374044][ T3596] RIP: 0033:0x7fda3c237e1c [ 53.378480][ T3596] 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 [ 53.398201][ T3596] RSP: 002b:00007ffcccbbf390 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.406637][ T3596] RAX: ffffffffffffffda RBX: 00007fda3d2d0320 RCX: 00007fda3c237e1c [ 53.414613][ T3596] RDX: 0000000000000048 RSI: 00007fda3d2d0370 RDI: 0000000000000003 [ 53.422707][ T3596] RBP: 0000000000000000 R08: 00007ffcccbbf3e4 R09: 000000000000000c [ 53.430734][ T3596] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.439010][ T3596] R13: 00007fda3d2d0370 R14: 0000000000000003 R15: 0000000000000000 [ 53.447023][ T3596] [ 53.457661][ T3596] device hsr_slave_0 entered promiscuous mode [ 53.465185][ T3596] device hsr_slave_1 entered promiscuous mode [ 53.546658][ T3596] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.559484][ T3596] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.569630][ T3596] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.579290][ T3596] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.601417][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.608646][ T3596] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.616849][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.623979][ T3596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.672469][ T3596] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.685687][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.697463][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.707326][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.716910][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.730054][ T3596] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.744744][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.753581][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.762915][ T6] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.770224][ T6] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.778115][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.787601][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.796074][ T6] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.803193][ T6] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.811021][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.830927][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.839853][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.848829][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.857331][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.866412][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.875485][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.888831][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.899538][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.913448][ T3596] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.928177][ T3596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.937841][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.947283][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.967466][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready executing program [ 53.976310][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.988750][ T3596] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.095431][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.104676][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.120641][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.129391][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.139836][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.148115][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.158695][ T3596] device veth0_vlan entered promiscuous mode [ 54.170605][ T3596] device veth1_vlan entered promiscuous mode [ 54.191552][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.200607][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.209751][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.218744][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.231499][ T3596] device veth0_macvtap entered promiscuous mode [ 54.241427][ T3596] device veth1_macvtap entered promiscuous mode [ 54.256682][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.264168][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.273821][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.282031][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.291834][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.305627][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.313683][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.322718][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.335680][ T3596] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.345929][ T3596] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.355233][ T3596] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.364022][ T3596] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.429043][ T45] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.441267][ T45] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.458160][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.469219][ T1477] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.478145][ T1477] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.487755][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 14:06:12 building call list... [ 54.635444][ T3594] Bluetooth: hci0: command 0x0409 tx timeout [ 54.776005][ T45] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 57.036074][ T3585] can: request_module (can-proto-0) failed. [ 57.059535][ T3585] can: request_module (can-proto-0) failed. [ 57.081745][ T3585] can: request_module (can-proto-0) failed. [ 57.576993][ T45] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0