Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. 2022/02/16 23:44:04 fuzzer started 2022/02/16 23:44:04 connecting to host at 10.128.0.169:36787 2022/02/16 23:44:04 checking machine... 2022/02/16 23:44:04 checking revisions... 2022/02/16 23:44:04 testing simple program... syzkaller login: [ 51.764583][ T3592] cgroup: Unknown subsys name 'net' [ 51.896750][ T3592] cgroup: Unknown subsys name 'rlimit' [ 53.161275][ T3595] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.169659][ T3595] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.177589][ T3595] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.185871][ T3595] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.193823][ T3595] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.201129][ T3595] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.295042][ T3594] chnl_net:caif_netlink_parms(): no params data found [ 53.340844][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.348707][ T3594] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.357711][ T3594] device bridge_slave_0 entered promiscuous mode [ 53.368121][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.375546][ T3594] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.384002][ T3594] device bridge_slave_1 entered promiscuous mode [ 53.405779][ T3594] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.416921][ T3594] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.440212][ T3594] team0: Port device team_slave_0 added [ 53.447624][ T3594] team0: Port device team_slave_1 added [ 53.465911][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.473180][ T3594] 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. [ 53.499383][ T3594] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.512339][ T3594] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.519308][ T3594] 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. [ 53.545357][ T3594] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.569665][ T3594] [ 53.572279][ T3594] ============================= [ 53.577145][ T3594] WARNING: suspicious RCU usage [ 53.582028][ T3594] 5.17.0-rc4-next-20220216-syzkaller #0 Not tainted [ 53.588621][ T3594] ----------------------------- [ 53.593513][ T3594] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 53.601691][ T3594] [ 53.601691][ T3594] other info that might help us debug this: [ 53.601691][ T3594] [ 53.611968][ T3594] [ 53.611968][ T3594] rcu_scheduler_active = 2, debug_locks = 1 [ 53.620149][ T3594] 2 locks held by syz-executor.0/3594: [ 53.625618][ T3594] #0: ffffffff8d3390e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.635144][ T3594] #1: ffff88801ed555f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.645325][ T3594] [ 53.645325][ T3594] stack backtrace: [ 53.651281][ T3594] CPU: 1 PID: 3594 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220216-syzkaller #0 [ 53.661179][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.671339][ T3594] Call Trace: [ 53.674620][ T3594] [ 53.677554][ T3594] dump_stack_lvl+0xcd/0x134 [ 53.682162][ T3594] hsr_node_get_first+0x9b/0xb0 [ 53.687029][ T3594] hsr_create_self_node+0x22d/0x650 [ 53.692249][ T3594] hsr_dev_finalize+0x2c1/0x7d0 [ 53.697120][ T3594] hsr_newlink+0x315/0x730 [ 53.701556][ T3594] ? hsr_dellink+0x130/0x130 [ 53.706164][ T3594] ? rtnl_create_link+0x7e8/0xc00 [ 53.711231][ T3594] ? hsr_dellink+0x130/0x130 [ 53.715862][ T3594] __rtnl_newlink+0x107c/0x1760 [ 53.720732][ T3594] ? rtnl_setlink+0x3c0/0x3c0 [ 53.725516][ T3594] ? is_bpf_text_address+0x77/0x170 [ 53.731079][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 53.735948][ T3594] ? unwind_next_frame+0xee1/0x1ce0 [ 53.741154][ T3594] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.747323][ T3594] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.753067][ T3594] ? is_bpf_text_address+0x99/0x170 [ 53.758278][ T3594] ? kernel_text_address+0x39/0x80 [ 53.763401][ T3594] ? __kernel_text_address+0x9/0x30 [ 53.768621][ T3594] ? unwind_get_return_address+0x51/0x90 [ 53.774257][ T3594] ? create_prof_cpu_mask+0x20/0x20 [ 53.779467][ T3594] ? arch_stack_walk+0x93/0xe0 [ 53.784315][ T3594] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.789881][ T3594] rtnl_newlink+0x64/0xa0 [ 53.794217][ T3594] ? __rtnl_newlink+0x1760/0x1760 [ 53.799252][ T3594] rtnetlink_rcv_msg+0x413/0xb80 [ 53.804201][ T3594] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.809002][ T3594] netlink_rcv_skb+0x153/0x420 [ 53.813777][ T3594] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.818547][ T3594] ? netlink_ack+0xa80/0xa80 [ 53.823156][ T3594] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.828452][ T3594] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.833754][ T3594] netlink_unicast+0x539/0x7e0 [ 53.838530][ T3594] ? netlink_attachskb+0x880/0x880 [ 53.843650][ T3594] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.850002][ T3594] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.856265][ T3594] ? __phys_addr_symbol+0x2c/0x70 [ 53.861298][ T3594] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.867034][ T3594] ? __check_object_size+0x16c/0x4f0 [ 53.872335][ T3594] netlink_sendmsg+0x904/0xe00 [ 53.877121][ T3594] ? netlink_unicast+0x7e0/0x7e0 [ 53.882087][ T3594] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.888344][ T3594] ? netlink_unicast+0x7e0/0x7e0 [ 53.893308][ T3594] sock_sendmsg+0xcf/0x120 [ 53.897756][ T3594] __sys_sendto+0x21c/0x320 [ 53.902276][ T3594] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.908181][ T3594] ? lockdep_hardirqs_on+0x79/0x100 [ 53.913407][ T3594] ? __context_tracking_exit+0xb8/0xe0 [ 53.918882][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 53.923756][ T3594] __x64_sys_sendto+0xdd/0x1b0 [ 53.928527][ T3594] ? lockdep_hardirqs_on+0x79/0x100 [ 53.933734][ T3594] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.939641][ T3594] do_syscall_64+0x35/0xb0 [ 53.944063][ T3594] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.949973][ T3594] RIP: 0033:0x7f8d75614e1c [ 53.954397][ T3594] 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 [ 53.974101][ T3594] RSP: 002b:00007ffdcbe356d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.982525][ T3594] RAX: ffffffffffffffda RBX: 00007f8d766ad320 RCX: 00007f8d75614e1c [ 53.990492][ T3594] RDX: 0000000000000048 RSI: 00007f8d766ad370 RDI: 0000000000000003 [ 53.998736][ T3594] RBP: 0000000000000000 R08: 00007ffdcbe35724 R09: 000000000000000c [ 54.006792][ T3594] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 54.014761][ T3594] R13: 00007f8d766ad370 R14: 0000000000000003 R15: 0000000000000000 [ 54.022873][ T3594] [ 54.033236][ T3594] device hsr_slave_0 entered promiscuous mode [ 54.041289][ T3594] device hsr_slave_1 entered promiscuous mode [ 54.122586][ T3594] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.133756][ T3594] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.142891][ T3594] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.151875][ T3594] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.172502][ T3594] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.179875][ T3594] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.187701][ T3594] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.194884][ T3594] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.237986][ T3594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.250170][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.261708][ T3604] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.271028][ T3604] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.279038][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.294937][ T3594] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.304566][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.314072][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.322872][ T3257] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.329947][ T3257] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.341200][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.349939][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.359779][ T26] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.367176][ T26] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.380154][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.401907][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.411527][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 54.421319][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.429714][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.438968][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.447740][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.456179][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.464576][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.473010][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.482208][ T3257] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.492241][ T3594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.509212][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.518227][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.531325][ T3594] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 54.640171][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.649209][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.669919][ T3594] device veth0_vlan entered promiscuous mode [ 54.677260][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.686155][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.696781][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.705146][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.717075][ T3594] device veth1_vlan entered promiscuous mode [ 54.736182][ T3594] device veth0_macvtap entered promiscuous mode [ 54.743928][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.752410][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.761169][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.770573][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.779642][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.789966][ T3594] device veth1_macvtap entered promiscuous mode [ 54.804870][ T3594] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.812557][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.821018][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.829878][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.843499][ T3594] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.851014][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.859535][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.871348][ T3594] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.881653][ T3594] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.890734][ T3594] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.899440][ T3594] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.959981][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.968602][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.983839][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.997645][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.006417][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.015028][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/16 23:44:07 building call list... [ 55.292459][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.315720][ T3587] can: request_module (can-proto-0) failed. [ 57.338211][ T3587] can: request_module (can-proto-0) failed. [ 57.357814][ T3587] can: request_module (can-proto-0) failed. executing program [ 57.801902][ T3594] syz-executor.0 (3594) used greatest stack depth: 22696 bytes left [ 57.901390][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0