Warning: Permanently added '10.128.0.251' (ECDSA) to the list of known hosts. 2022/02/13 14:01:31 fuzzer started 2022/02/13 14:01:32 connecting to host at 10.128.0.169:34161 2022/02/13 14:01:32 checking machine... 2022/02/13 14:01:32 checking revisions... 2022/02/13 14:01:32 testing simple program... syzkaller login: [ 47.227555][ T3594] cgroup: Unknown subsys name 'net' [ 47.412508][ T3594] cgroup: Unknown subsys name 'rlimit' [ 48.635989][ T3598] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.645757][ T3598] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.653841][ T3598] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.662428][ T3598] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.670817][ T3598] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 48.678873][ T3598] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 48.776464][ T3597] chnl_net:caif_netlink_parms(): no params data found [ 48.822782][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.830690][ T3597] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.839199][ T3597] device bridge_slave_0 entered promiscuous mode [ 48.849927][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.857421][ T3597] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.865789][ T3597] device bridge_slave_1 entered promiscuous mode [ 48.888213][ T3597] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.900229][ T3597] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.924493][ T3597] team0: Port device team_slave_0 added [ 48.933254][ T3597] team0: Port device team_slave_1 added [ 48.955276][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.962582][ T3597] 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. [ 48.989420][ T3597] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.003085][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.010297][ T3597] 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. [ 49.037270][ T3597] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.063530][ T3597] [ 49.066105][ T3597] ============================= [ 49.071062][ T3597] WARNING: suspicious RCU usage [ 49.075966][ T3597] 5.17.0-rc3-syzkaller-01121-g1f52d7b62285 #0 Not tainted [ 49.083068][ T3597] ----------------------------- [ 49.087997][ T3597] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 49.096291][ T3597] [ 49.096291][ T3597] other info that might help us debug this: [ 49.096291][ T3597] [ 49.106681][ T3597] [ 49.106681][ T3597] rcu_scheduler_active = 2, debug_locks = 1 [ 49.114766][ T3597] 2 locks held by syz-executor.0/3597: [ 49.120421][ T3597] #0: ffffffff8d32cba8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 49.129908][ T3597] #1: ffff8880743495f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 49.140162][ T3597] [ 49.140162][ T3597] stack backtrace: [ 49.146107][ T3597] CPU: 1 PID: 3597 Comm: syz-executor.0 Not tainted 5.17.0-rc3-syzkaller-01121-g1f52d7b62285 #0 [ 49.156534][ T3597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.166587][ T3597] Call Trace: [ 49.170034][ T3597] [ 49.172953][ T3597] dump_stack_lvl+0xcd/0x134 [ 49.177541][ T3597] hsr_node_get_first+0x9b/0xb0 [ 49.182385][ T3597] hsr_create_self_node+0x22d/0x650 [ 49.187667][ T3597] hsr_dev_finalize+0x2c1/0x7d0 [ 49.192513][ T3597] hsr_newlink+0x315/0x730 [ 49.196918][ T3597] ? hsr_dellink+0x130/0x130 [ 49.201498][ T3597] ? rtnl_create_link+0x7e8/0xc00 [ 49.206604][ T3597] ? hsr_dellink+0x130/0x130 [ 49.211201][ T3597] __rtnl_newlink+0x107c/0x1760 [ 49.216053][ T3597] ? rtnl_setlink+0x3c0/0x3c0 [ 49.220727][ T3597] ? is_bpf_text_address+0x77/0x170 [ 49.225922][ T3597] ? lock_downgrade+0x6e0/0x6e0 [ 49.230774][ T3597] ? unwind_next_frame+0xee1/0x1ce0 [ 49.236149][ T3597] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 49.242328][ T3597] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 49.248085][ T3597] ? is_bpf_text_address+0x99/0x170 [ 49.253614][ T3597] ? kernel_text_address+0x39/0x80 [ 49.258742][ T3597] ? __kernel_text_address+0x9/0x30 [ 49.263942][ T3597] ? unwind_get_return_address+0x51/0x90 [ 49.269593][ T3597] ? create_prof_cpu_mask+0x20/0x20 [ 49.274823][ T3597] ? arch_stack_walk+0x93/0xe0 [ 49.279627][ T3597] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 49.285092][ T3597] ? rcu_read_lock_sched_held+0x3a/0x70 [ 49.290654][ T3597] rtnl_newlink+0x64/0xa0 [ 49.295009][ T3597] ? __rtnl_newlink+0x1760/0x1760 [ 49.300035][ T3597] rtnetlink_rcv_msg+0x413/0xb80 [ 49.305001][ T3597] ? rtnl_newlink+0xa0/0xa0 [ 49.309736][ T3597] netlink_rcv_skb+0x153/0x420 [ 49.314602][ T3597] ? rtnl_newlink+0xa0/0xa0 [ 49.319108][ T3597] ? netlink_ack+0xa60/0xa60 [ 49.323694][ T3597] ? netlink_deliver_tap+0x1a2/0xc40 [ 49.328982][ T3597] ? netlink_deliver_tap+0x1b1/0xc40 [ 49.334272][ T3597] netlink_unicast+0x539/0x7e0 [ 49.339049][ T3597] ? netlink_attachskb+0x880/0x880 [ 49.344152][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 49.350402][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 49.356742][ T3597] ? __phys_addr_symbol+0x2c/0x70 [ 49.361852][ T3597] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 49.367608][ T3597] ? __check_object_size+0x16e/0x310 [ 49.372909][ T3597] netlink_sendmsg+0x904/0xe00 [ 49.377676][ T3597] ? netlink_unicast+0x7e0/0x7e0 [ 49.382636][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.388892][ T3597] ? netlink_unicast+0x7e0/0x7e0 [ 49.393843][ T3597] sock_sendmsg+0xcf/0x120 [ 49.398368][ T3597] __sys_sendto+0x21c/0x320 [ 49.402891][ T3597] ? __ia32_sys_getpeername+0xb0/0xb0 [ 49.408350][ T3597] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.414340][ T3597] ? __context_tracking_exit+0xb8/0xe0 [ 49.419889][ T3597] ? lock_downgrade+0x6e0/0x6e0 [ 49.424772][ T3597] ? lock_downgrade+0x6e0/0x6e0 [ 49.429718][ T3597] __x64_sys_sendto+0xdd/0x1b0 [ 49.434484][ T3597] ? lockdep_hardirqs_on+0x79/0x100 [ 49.439697][ T3597] ? syscall_enter_from_user_mode+0x21/0x70 [ 49.445591][ T3597] do_syscall_64+0x35/0xb0 [ 49.450020][ T3597] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 49.455910][ T3597] RIP: 0033:0x7fe16f124e1c [ 49.460319][ T3597] 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 [ 49.480042][ T3597] RSP: 002b:00007ffcecfa5e80 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 49.488544][ T3597] RAX: ffffffffffffffda RBX: 00007fe1701bd320 RCX: 00007fe16f124e1c [ 49.496526][ T3597] RDX: 0000000000000048 RSI: 00007fe1701bd370 RDI: 0000000000000003 [ 49.504547][ T3597] RBP: 0000000000000000 R08: 00007ffcecfa5ed4 R09: 000000000000000c [ 49.512708][ T3597] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 49.520825][ T3597] R13: 00007fe1701bd370 R14: 0000000000000003 R15: 0000000000000000 [ 49.529001][ T3597] [ 49.535982][ T3597] device hsr_slave_0 entered promiscuous mode [ 49.543469][ T3597] device hsr_slave_1 entered promiscuous mode [ 49.631896][ T3597] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.643185][ T3597] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.655417][ T3597] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.664421][ T3597] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.686562][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.693868][ T3597] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.701921][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.709035][ T3597] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.756105][ T3597] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.769499][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.779839][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.788693][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.797368][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.810969][ T3597] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.820548][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.829486][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.838973][ T21] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.846699][ T21] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.865157][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.874049][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.883213][ T6] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.890396][ T6] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.898243][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 49.907015][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 49.916723][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 49.925746][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.934803][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.953338][ T3597] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.965262][ T3597] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.978356][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 49.987905][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.998064][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.006795][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 50.016295][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 50.025437][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.034786][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.056475][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 50.064146][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 50.080995][ T3597] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.236787][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 50.246334][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 50.261027][ T3597] device veth0_vlan entered promiscuous mode [ 50.267962][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 50.276932][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 50.290124][ T3597] device veth1_vlan entered promiscuous mode [ 50.299221][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 50.307697][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 50.315603][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 50.338327][ T3597] device veth0_macvtap entered promiscuous mode [ 50.346020][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 50.354409][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 50.363486][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 50.373112][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 50.383948][ T3597] device veth1_macvtap entered promiscuous mode [ 50.401128][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 50.408840][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 50.417849][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 50.426917][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 50.439467][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 50.447084][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 50.456276][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 50.468554][ T3597] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.477473][ T3597] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.486260][ T3597] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.495634][ T3597] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.562745][ T940] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.571134][ T940] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.587652][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 50.599243][ T940] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.607911][ T940] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.617414][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/13 14:01:35 building call list... [ 50.706275][ T918] Bluetooth: hci0: command 0x0409 tx timeout [ 50.907834][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 52.998175][ T3586] can: request_module (can-proto-0) failed. [ 53.020826][ T3586] can: request_module (can-proto-0) failed. [ 53.046449][ T3586] can: request_module (can-proto-0) failed. [ 53.710454][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0