Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. 2022/02/09 12:19:01 fuzzer started 2022/02/09 12:19:01 connecting to host at 10.128.0.169:45159 2022/02/09 12:19:01 checking machine... 2022/02/09 12:19:01 checking revisions... 2022/02/09 12:19:02 testing simple program... syzkaller login: [ 48.501533][ T3603] cgroup: Unknown subsys name 'net' [ 48.656237][ T3603] cgroup: Unknown subsys name 'rlimit' [ 49.889937][ T3606] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.897861][ T3606] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.905484][ T3606] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.913632][ T3606] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.921675][ T3606] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.929040][ T3606] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.012332][ T3605] chnl_net:caif_netlink_parms(): no params data found [ 50.053367][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.060865][ T3605] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.068725][ T3605] device bridge_slave_0 entered promiscuous mode [ 50.077702][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.084864][ T3605] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.092812][ T3605] device bridge_slave_1 entered promiscuous mode [ 50.113420][ T3605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.124665][ T3605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.147295][ T3605] team0: Port device team_slave_0 added [ 50.154442][ T3605] team0: Port device team_slave_1 added [ 50.173143][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.180187][ T3605] 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. [ 50.206260][ T3605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.218760][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.225938][ T3605] 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. [ 50.252024][ T3605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.275412][ T3605] [ 50.277837][ T3605] ============================= [ 50.282704][ T3605] WARNING: suspicious RCU usage [ 50.287528][ T3605] 5.17.0-rc2-syzkaller-00716-gaa4725c2fc03 #0 Not tainted [ 50.294634][ T3605] ----------------------------- [ 50.299503][ T3605] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 50.307649][ T3605] [ 50.307649][ T3605] other info that might help us debug this: [ 50.307649][ T3605] [ 50.318031][ T3605] [ 50.318031][ T3605] rcu_scheduler_active = 2, debug_locks = 1 [ 50.326112][ T3605] 2 locks held by syz-executor.0/3605: [ 50.331591][ T3605] #0: ffffffff8d32c1e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 50.341058][ T3605] #1: ffff88807a3e95f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 50.351190][ T3605] [ 50.351190][ T3605] stack backtrace: [ 50.357079][ T3605] CPU: 0 PID: 3605 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00716-gaa4725c2fc03 #0 [ 50.367844][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.377888][ T3605] Call Trace: [ 50.381178][ T3605] [ 50.384091][ T3605] dump_stack_lvl+0xcd/0x134 [ 50.388670][ T3605] hsr_node_get_first+0x9b/0xb0 [ 50.393518][ T3605] hsr_create_self_node+0x22d/0x650 [ 50.398708][ T3605] hsr_dev_finalize+0x2c1/0x7d0 [ 50.403545][ T3605] hsr_newlink+0x315/0x730 [ 50.407947][ T3605] ? hsr_dellink+0x130/0x130 [ 50.412536][ T3605] ? rtnl_create_link+0x7e8/0xc00 [ 50.417549][ T3605] ? hsr_dellink+0x130/0x130 [ 50.422136][ T3605] __rtnl_newlink+0x107c/0x1760 [ 50.426983][ T3605] ? rtnl_setlink+0x3c0/0x3c0 [ 50.431655][ T3605] ? is_bpf_text_address+0x77/0x170 [ 50.436856][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 50.441715][ T3605] ? unwind_next_frame+0xee1/0x1ce0 [ 50.447003][ T3605] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.453058][ T3605] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 50.458775][ T3605] ? is_bpf_text_address+0x99/0x170 [ 50.463972][ T3605] ? kernel_text_address+0x39/0x80 [ 50.469077][ T3605] ? __kernel_text_address+0x9/0x30 [ 50.474273][ T3605] ? unwind_get_return_address+0x51/0x90 [ 50.479899][ T3605] ? create_prof_cpu_mask+0x20/0x20 [ 50.485097][ T3605] ? arch_stack_walk+0x93/0xe0 [ 50.489892][ T3605] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 50.495349][ T3605] ? rcu_read_lock_sched_held+0x3a/0x70 [ 50.500890][ T3605] rtnl_newlink+0x64/0xa0 [ 50.505214][ T3605] ? __rtnl_newlink+0x1760/0x1760 [ 50.510230][ T3605] rtnetlink_rcv_msg+0x413/0xb80 [ 50.515156][ T3605] ? rtnl_newlink+0xa0/0xa0 [ 50.519684][ T3605] netlink_rcv_skb+0x153/0x420 [ 50.524446][ T3605] ? rtnl_newlink+0xa0/0xa0 [ 50.528936][ T3605] ? netlink_ack+0xa60/0xa60 [ 50.533514][ T3605] ? netlink_deliver_tap+0x1a2/0xc40 [ 50.538792][ T3605] ? netlink_deliver_tap+0x1b1/0xc40 [ 50.544063][ T3605] netlink_unicast+0x539/0x7e0 [ 50.548847][ T3605] ? netlink_attachskb+0x880/0x880 [ 50.553953][ T3605] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.560192][ T3605] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.566420][ T3605] ? __phys_addr_symbol+0x2c/0x70 [ 50.571442][ T3605] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 50.577158][ T3605] ? __check_object_size+0x16e/0x310 [ 50.582439][ T3605] netlink_sendmsg+0x904/0xe00 [ 50.587200][ T3605] ? netlink_unicast+0x7e0/0x7e0 [ 50.592131][ T3605] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.598375][ T3605] ? netlink_unicast+0x7e0/0x7e0 [ 50.603298][ T3605] sock_sendmsg+0xcf/0x120 [ 50.607711][ T3605] __sys_sendto+0x21c/0x320 [ 50.612203][ T3605] ? __ia32_sys_getpeername+0xb0/0xb0 [ 50.617562][ T3605] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 50.623542][ T3605] ? __context_tracking_exit+0xb8/0xe0 [ 50.628986][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 50.633821][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 50.638662][ T3605] __x64_sys_sendto+0xdd/0x1b0 [ 50.643416][ T3605] ? lockdep_hardirqs_on+0x79/0x100 [ 50.648597][ T3605] ? syscall_enter_from_user_mode+0x21/0x70 [ 50.654475][ T3605] do_syscall_64+0x35/0xb0 [ 50.658873][ T3605] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.664747][ T3605] RIP: 0033:0x7fcf616bee1c [ 50.669147][ T3605] 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 [ 50.688754][ T3605] RSP: 002b:00007ffc4dac19a0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 50.697148][ T3605] RAX: ffffffffffffffda RBX: 00007fcf62757320 RCX: 00007fcf616bee1c [ 50.705114][ T3605] RDX: 0000000000000048 RSI: 00007fcf62757370 RDI: 0000000000000003 [ 50.713071][ T3605] RBP: 0000000000000000 R08: 00007ffc4dac19f4 R09: 000000000000000c [ 50.721025][ T3605] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 50.728979][ T3605] R13: 00007fcf62757370 R14: 0000000000000003 R15: 0000000000000000 [ 50.736944][ T3605] [ 50.744180][ T3605] device hsr_slave_0 entered promiscuous mode [ 50.751807][ T3605] device hsr_slave_1 entered promiscuous mode [ 50.859020][ T3605] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.871235][ T3605] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.882439][ T3605] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.892350][ T3605] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.919758][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.927027][ T3605] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.934974][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.942209][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.986649][ T3605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.998903][ T3282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.009552][ T3282] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.017925][ T3282] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.026705][ T3282] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.039946][ T3605] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.048885][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.057825][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.066437][ T140] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.073691][ T140] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.093111][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.101896][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.110787][ T140] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.117830][ T140] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.125708][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.134226][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.147665][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.156334][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.165233][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.181321][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.189993][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.198470][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.207006][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.215578][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.224316][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.235232][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 51.252944][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.260727][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.273173][ T3605] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.388481][ T3605] device veth0_vlan entered promiscuous mode [ 51.396997][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.406872][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.415863][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.424369][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.434640][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.442399][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.454137][ T3605] device veth1_vlan entered promiscuous mode [ 51.472239][ T3605] device veth0_macvtap entered promiscuous mode [ 51.479339][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.487204][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.495412][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.503845][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.513386][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.523065][ T3605] device veth1_macvtap entered promiscuous mode [ 51.538336][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.546467][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.554528][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.563313][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.575288][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.583002][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.592432][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.603393][ T3605] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.613248][ T3605] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.622289][ T3605] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.633046][ T3605] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.690556][ T1013] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.698514][ T1013] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.715338][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.726922][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.735931][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.744902][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/09 12:19:05 building call list... [ 51.964054][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.936383][ T3598] can: request_module (can-proto-0) failed. [ 53.957508][ T3598] can: request_module (can-proto-0) failed. [ 53.977645][ T3598] can: request_module (can-proto-0) failed. executing program [ 54.481324][ T3605] syz-executor.0 (3605) used greatest stack depth: 22120 bytes left [ 54.571584][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0