Warning: Permanently added '10.128.1.82' (ECDSA) to the list of known hosts. 2022/02/18 06:08:43 fuzzer started 2022/02/18 06:08:43 connecting to host at 10.128.0.169:44961 2022/02/18 06:08:43 checking machine... 2022/02/18 06:08:43 checking revisions... 2022/02/18 06:08:44 testing simple program... syzkaller login: [ 43.890331][ T3593] cgroup: Unknown subsys name 'net' [ 44.038461][ T3593] cgroup: Unknown subsys name 'rlimit' [ 45.273079][ T3596] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 45.281065][ T3596] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 45.289180][ T3596] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 45.297390][ T3596] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 45.305184][ T3596] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 45.312609][ T3596] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 45.400138][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 45.441603][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.449281][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.457410][ T3595] device bridge_slave_0 entered promiscuous mode [ 45.466968][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.474234][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.482329][ T3595] device bridge_slave_1 entered promiscuous mode [ 45.502642][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.514448][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.537273][ T3595] team0: Port device team_slave_0 added [ 45.544809][ T3595] team0: Port device team_slave_1 added [ 45.562282][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.569227][ 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. [ 45.595513][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.609757][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.616834][ 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. [ 45.642838][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.666655][ T3595] [ 45.669086][ T3595] ============================= [ 45.673956][ T3595] WARNING: suspicious RCU usage [ 45.678788][ T3595] 5.17.0-rc4-syzkaller-01323-ga3fc4b1d09d9 #0 Not tainted [ 45.685917][ T3595] ----------------------------- [ 45.690746][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 45.698919][ T3595] [ 45.698919][ T3595] other info that might help us debug this: [ 45.698919][ T3595] [ 45.709185][ T3595] [ 45.709185][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 45.717278][ T3595] 2 locks held by syz-executor.0/3595: [ 45.722758][ T3595] #0: ffffffff8d32f828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 45.732263][ T3595] #1: ffff8880781a15f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 45.742406][ T3595] [ 45.742406][ T3595] stack backtrace: [ 45.748282][ T3595] CPU: 1 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-01323-ga3fc4b1d09d9 #0 [ 45.758782][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.768827][ T3595] Call Trace: [ 45.772091][ T3595] [ 45.775006][ T3595] dump_stack_lvl+0xcd/0x134 [ 45.779599][ T3595] hsr_node_get_first+0x9b/0xb0 [ 45.784437][ T3595] hsr_create_self_node+0x22d/0x650 [ 45.789634][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 45.794471][ T3595] hsr_newlink+0x315/0x730 [ 45.798872][ T3595] ? hsr_dellink+0x130/0x130 [ 45.803451][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 45.808726][ T3595] ? hsr_dellink+0x130/0x130 [ 45.813300][ T3595] __rtnl_newlink+0x107c/0x1760 [ 45.818147][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 45.822813][ T3595] ? is_bpf_text_address+0x77/0x170 [ 45.827997][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 45.832835][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 45.838016][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 45.844068][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 45.849794][ T3595] ? is_bpf_text_address+0x99/0x170 [ 45.854980][ T3595] ? kernel_text_address+0x39/0x80 [ 45.860078][ T3595] ? __kernel_text_address+0x9/0x30 [ 45.865262][ T3595] ? unwind_get_return_address+0x51/0x90 [ 45.870879][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 45.876149][ T3595] ? arch_stack_walk+0x93/0xe0 [ 45.880930][ T3595] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 45.886383][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 45.891917][ T3595] rtnl_newlink+0x64/0xa0 [ 45.896235][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 45.901246][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 45.906173][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 45.910938][ T3595] netlink_rcv_skb+0x153/0x420 [ 45.915694][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 45.920487][ T3595] ? netlink_ack+0xa60/0xa60 [ 45.925160][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 45.930436][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 45.935714][ T3595] netlink_unicast+0x539/0x7e0 [ 45.940466][ T3595] ? netlink_attachskb+0x880/0x880 [ 45.945575][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 45.951804][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 45.958028][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 45.963040][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 45.968745][ T3595] ? __check_object_size+0x16e/0x310 [ 45.974019][ T3595] netlink_sendmsg+0x904/0xe00 [ 45.978790][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 45.983721][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.989949][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 45.994889][ T3595] sock_sendmsg+0xcf/0x120 [ 45.999292][ T3595] __sys_sendto+0x21c/0x320 [ 46.003791][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 46.009150][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 46.014344][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 46.019789][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 46.024636][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 46.029383][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 46.034585][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 46.040466][ T3595] do_syscall_64+0x35/0xb0 [ 46.044871][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 46.050752][ T3595] RIP: 0033:0x7f87325b9e1c [ 46.055149][ 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 [ 46.074742][ T3595] RSP: 002b:00007ffc55ec1d10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 46.083141][ T3595] RAX: ffffffffffffffda RBX: 00007f8733652320 RCX: 00007f87325b9e1c [ 46.091095][ T3595] RDX: 0000000000000048 RSI: 00007f8733652370 RDI: 0000000000000003 [ 46.099047][ T3595] RBP: 0000000000000000 R08: 00007ffc55ec1d64 R09: 000000000000000c [ 46.106999][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 46.114956][ T3595] R13: 00007f8733652370 R14: 0000000000000003 R15: 0000000000000000 [ 46.122927][ T3595] [ 46.130743][ T3595] device hsr_slave_0 entered promiscuous mode [ 46.138054][ T3595] device hsr_slave_1 entered promiscuous mode [ 46.216011][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 46.226461][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.236242][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.246786][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.268796][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.276186][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.284504][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.291684][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.336148][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.348642][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.358863][ T3605] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.368933][ T3605] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.377161][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.391323][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.400613][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.409660][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.418328][ T6] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.425428][ T6] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.437892][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.446562][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.455976][ T3607] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.463115][ T3607] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.482549][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.491255][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.500125][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.509470][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.518449][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.527172][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.537879][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.546064][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.554660][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.567082][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.576170][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.587094][ T3595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.602757][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.610167][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.623903][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 46.734990][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.744610][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.757054][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.765338][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.775166][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.783084][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.791737][ T3595] device veth0_vlan entered promiscuous mode [ 46.802467][ T3595] device veth1_vlan entered promiscuous mode [ 46.819729][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.828031][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.836425][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.845044][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.855128][ T3595] device veth0_macvtap entered promiscuous mode [ 46.865590][ T3595] device veth1_macvtap entered promiscuous mode [ 46.879829][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.887871][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.896373][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.904569][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.913550][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.927121][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.934512][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.943400][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.955623][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.964537][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.973790][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.982693][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.040015][ T1081] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 47.050126][ T1081] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 47.065504][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 47.075012][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 47.084561][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 47.093355][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/18 06:08:47 building call list... [ 47.314171][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 49.443905][ T3588] can: request_module (can-proto-0) failed. [ 49.467894][ T3588] can: request_module (can-proto-0) failed. [ 49.488611][ T3588] can: request_module (can-proto-0) failed. executing program