Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts. 2022/02/17 10:04:24 fuzzer started 2022/02/17 10:04:24 connecting to host at 10.128.0.169:41815 2022/02/17 10:04:24 checking machine... 2022/02/17 10:04:24 checking revisions... 2022/02/17 10:04:24 testing simple program... syzkaller login: [ 51.980034][ T3593] cgroup: Unknown subsys name 'net' [ 52.091009][ T3593] cgroup: Unknown subsys name 'rlimit' [ 53.306212][ T3597] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.314685][ T3597] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.322858][ T3597] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.331508][ T3599] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.339397][ T3599] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.347058][ T3599] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.442730][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 53.487017][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.495528][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.503829][ T3595] device bridge_slave_0 entered promiscuous mode [ 53.514511][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.521771][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.529665][ T3595] device bridge_slave_1 entered promiscuous mode [ 53.551969][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.563177][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.587814][ T3595] team0: Port device team_slave_0 added [ 53.597193][ T3595] team0: Port device team_slave_1 added [ 53.616455][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.623923][ 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. [ 53.650141][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.663175][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.670391][ 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. [ 53.696544][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.722662][ T3595] [ 53.725140][ T3595] ============================= [ 53.730025][ T3595] WARNING: suspicious RCU usage [ 53.735050][ T3595] 5.17.0-rc4-next-20220217-syzkaller #0 Not tainted [ 53.741719][ T3595] ----------------------------- [ 53.746597][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 53.754933][ T3595] [ 53.754933][ T3595] other info that might help us debug this: [ 53.754933][ T3595] [ 53.765218][ T3595] [ 53.765218][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 53.773382][ T3595] 2 locks held by syz-executor.0/3595: [ 53.778943][ T3595] #0: ffffffff8d539528 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.788557][ T3595] #1: ffff88801ec015f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.798766][ T3595] [ 53.798766][ T3595] stack backtrace: [ 53.804741][ T3595] CPU: 1 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220217-syzkaller #0 [ 53.814736][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.824808][ T3595] Call Trace: [ 53.828092][ T3595] [ 53.831025][ T3595] dump_stack_lvl+0xcd/0x134 [ 53.835631][ T3595] hsr_node_get_first+0x9b/0xb0 [ 53.840521][ T3595] hsr_create_self_node+0x22d/0x650 [ 53.846268][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 53.851135][ T3595] hsr_newlink+0x315/0x730 [ 53.855561][ T3595] ? hsr_dellink+0x130/0x130 [ 53.860156][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 53.865198][ T3595] ? hsr_dellink+0x130/0x130 [ 53.869803][ T3595] __rtnl_newlink+0x107c/0x1760 [ 53.874673][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 53.879368][ T3595] ? is_bpf_text_address+0x77/0x170 [ 53.884587][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 53.889578][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 53.894811][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.900907][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.906785][ T3595] ? is_bpf_text_address+0x99/0x170 [ 53.912029][ T3595] ? kernel_text_address+0x39/0x80 [ 53.917174][ T3595] ? __kernel_text_address+0x9/0x30 [ 53.922388][ T3595] ? unwind_get_return_address+0x51/0x90 [ 53.928034][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 53.933249][ T3595] ? arch_stack_walk+0x93/0xe0 [ 53.938267][ T3595] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 53.943772][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.949350][ T3595] rtnl_newlink+0x64/0xa0 [ 53.953709][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 53.958756][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 53.963894][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.968784][ T3595] netlink_rcv_skb+0x153/0x420 [ 53.973576][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.978456][ T3595] ? netlink_ack+0xa80/0xa80 [ 53.983057][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.988371][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.993674][ T3595] netlink_unicast+0x539/0x7e0 [ 53.998539][ T3595] ? netlink_attachskb+0x880/0x880 [ 54.003751][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 54.010024][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 54.016279][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 54.021349][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 54.027171][ T3595] ? __check_object_size+0x16c/0x4f0 [ 54.032468][ T3595] netlink_sendmsg+0x904/0xe00 [ 54.037247][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 54.042331][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 54.048677][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 54.053623][ T3595] sock_sendmsg+0xcf/0x120 [ 54.058157][ T3595] __sys_sendto+0x21c/0x320 [ 54.062674][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 54.068145][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 54.073372][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 54.078860][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 54.083825][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 54.088601][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 54.093812][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 54.099715][ T3595] do_syscall_64+0x35/0xb0 [ 54.104226][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 54.110158][ T3595] RIP: 0033:0x7fc2cd7efe1c [ 54.114748][ 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 [ 54.134716][ T3595] RSP: 002b:00007fff33c9dac0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 54.143134][ T3595] RAX: ffffffffffffffda RBX: 00007fc2ce888320 RCX: 00007fc2cd7efe1c [ 54.151116][ T3595] RDX: 0000000000000048 RSI: 00007fc2ce888370 RDI: 0000000000000003 [ 54.159257][ T3595] RBP: 0000000000000000 R08: 00007fff33c9db14 R09: 000000000000000c [ 54.168645][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 54.176628][ T3595] R13: 00007fc2ce888370 R14: 0000000000000003 R15: 0000000000000000 [ 54.184906][ T3595] [ 54.196117][ T3595] device hsr_slave_0 entered promiscuous mode [ 54.203492][ T3595] device hsr_slave_1 entered promiscuous mode [ 54.287522][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.298180][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.307449][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.317913][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.339713][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.347135][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.355207][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.362581][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.408431][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.424638][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.436253][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.445870][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.454077][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.468536][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.478163][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.487995][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.499040][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.506351][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.519679][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.529222][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.538636][ T6] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.545765][ T6] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.559817][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.571534][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.583394][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 54.593301][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.603594][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.614063][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.623109][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.638236][ T3595] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.649622][ T3595] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.662747][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.672876][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.682398][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.691421][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 54.710387][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.717817][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.725866][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.733722][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.850926][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.859797][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.872903][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.881521][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.889949][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.899146][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.908430][ T3595] device veth0_vlan entered promiscuous mode [ 54.920296][ T3595] device veth1_vlan entered promiscuous mode [ 54.939389][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.948075][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.956288][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.965184][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.975920][ T3595] device veth0_macvtap entered promiscuous mode [ 54.986457][ T3595] device veth1_macvtap entered promiscuous mode [ 55.003287][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.012210][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 55.020328][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 55.028785][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 55.038054][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 55.049487][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.057429][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 55.066535][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 55.077926][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.087857][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.096852][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.105631][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.171462][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.179374][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.189248][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 55.211876][ T283] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.219937][ T283] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.230316][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 10:04:28 building call list... [ 55.371969][ T35] Bluetooth: hci0: command 0x0409 tx timeout [ 55.563640][ T283] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.683945][ T3616] can: request_module (can-proto-0) failed. [ 57.707441][ T3616] can: request_module (can-proto-0) failed. [ 57.729247][ T3616] can: request_module (can-proto-0) failed. executing program [ 58.111144][ T283] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0