Warning: Permanently added '10.128.1.8' (ECDSA) to the list of known hosts. 2022/02/17 14:06:08 fuzzer started 2022/02/17 14:06:09 connecting to host at 10.128.0.169:37733 2022/02/17 14:06:09 checking machine... 2022/02/17 14:06:09 checking revisions... 2022/02/17 14:06:09 testing simple program... syzkaller login: [ 51.216048][ T3591] cgroup: Unknown subsys name 'net' [ 51.333805][ T3591] cgroup: Unknown subsys name 'rlimit' [ 52.597617][ T3594] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.606757][ T3594] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.614271][ T3594] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.622609][ T3594] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.630281][ T3594] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.638583][ T3594] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.730802][ T3593] chnl_net:caif_netlink_parms(): no params data found [ 52.775907][ T3593] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.783633][ T3593] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.791904][ T3593] device bridge_slave_0 entered promiscuous mode [ 52.800984][ T3593] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.808372][ T3593] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.816150][ T3593] device bridge_slave_1 entered promiscuous mode [ 52.837668][ T3593] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.848914][ T3593] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.872097][ T3593] team0: Port device team_slave_0 added [ 52.879389][ T3593] team0: Port device team_slave_1 added [ 52.896690][ T3593] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.904516][ T3593] 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. [ 52.930941][ T3593] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.943707][ T3593] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.951734][ T3593] 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. [ 52.979250][ T3593] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.002332][ T3593] [ 53.004755][ T3593] ============================= [ 53.009928][ T3593] WARNING: suspicious RCU usage [ 53.014793][ T3593] 5.17.0-rc4-next-20220217-syzkaller #0 Not tainted [ 53.021420][ T3593] ----------------------------- [ 53.026259][ T3593] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 53.035110][ T3593] [ 53.035110][ T3593] other info that might help us debug this: [ 53.035110][ T3593] [ 53.045719][ T3593] [ 53.045719][ T3593] rcu_scheduler_active = 2, debug_locks = 1 [ 53.053839][ T3593] 2 locks held by syz-executor.0/3593: [ 53.059333][ T3593] #0: ffffffff8d539528 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.068807][ T3593] #1: ffff88806e24d5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.078972][ T3593] [ 53.078972][ T3593] stack backtrace: [ 53.084848][ T3593] CPU: 1 PID: 3593 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220217-syzkaller #0 [ 53.094735][ T3593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.104776][ T3593] Call Trace: [ 53.108041][ T3593] [ 53.110957][ T3593] dump_stack_lvl+0xcd/0x134 [ 53.115631][ T3593] hsr_node_get_first+0x9b/0xb0 [ 53.120475][ T3593] hsr_create_self_node+0x22d/0x650 [ 53.125670][ T3593] hsr_dev_finalize+0x2c1/0x7d0 [ 53.130533][ T3593] hsr_newlink+0x315/0x730 [ 53.134955][ T3593] ? hsr_dellink+0x130/0x130 [ 53.139531][ T3593] ? rtnl_create_link+0x7e8/0xc00 [ 53.144549][ T3593] ? hsr_dellink+0x130/0x130 [ 53.149132][ T3593] __rtnl_newlink+0x107c/0x1760 [ 53.153980][ T3593] ? rtnl_setlink+0x3c0/0x3c0 [ 53.158665][ T3593] ? is_bpf_text_address+0x77/0x170 [ 53.163856][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 53.168703][ T3593] ? unwind_next_frame+0xee1/0x1ce0 [ 53.174009][ T3593] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.180086][ T3593] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.185826][ T3593] ? is_bpf_text_address+0x99/0x170 [ 53.191040][ T3593] ? kernel_text_address+0x39/0x80 [ 53.196144][ T3593] ? __kernel_text_address+0x9/0x30 [ 53.201331][ T3593] ? unwind_get_return_address+0x51/0x90 [ 53.206963][ T3593] ? create_prof_cpu_mask+0x20/0x20 [ 53.212265][ T3593] ? arch_stack_walk+0x93/0xe0 [ 53.217066][ T3593] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 53.222546][ T3593] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.228093][ T3593] rtnl_newlink+0x64/0xa0 [ 53.232764][ T3593] ? __rtnl_newlink+0x1760/0x1760 [ 53.238423][ T3593] rtnetlink_rcv_msg+0x413/0xb80 [ 53.243432][ T3593] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.248216][ T3593] netlink_rcv_skb+0x153/0x420 [ 53.252988][ T3593] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.257748][ T3593] ? netlink_ack+0xa80/0xa80 [ 53.262328][ T3593] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.267627][ T3593] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.272906][ T3593] netlink_unicast+0x539/0x7e0 [ 53.277672][ T3593] ? netlink_attachskb+0x880/0x880 [ 53.282795][ T3593] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.289046][ T3593] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.295288][ T3593] ? __phys_addr_symbol+0x2c/0x70 [ 53.300342][ T3593] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.306061][ T3593] ? __check_object_size+0x16c/0x4f0 [ 53.311360][ T3593] netlink_sendmsg+0x904/0xe00 [ 53.316212][ T3593] ? netlink_unicast+0x7e0/0x7e0 [ 53.321147][ T3593] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.327383][ T3593] ? netlink_unicast+0x7e0/0x7e0 [ 53.332507][ T3593] sock_sendmsg+0xcf/0x120 [ 53.336948][ T3593] __sys_sendto+0x21c/0x320 [ 53.341460][ T3593] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.346863][ T3593] ? lockdep_hardirqs_on+0x79/0x100 [ 53.352077][ T3593] ? __context_tracking_exit+0xb8/0xe0 [ 53.357591][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 53.362572][ T3593] __x64_sys_sendto+0xdd/0x1b0 [ 53.367345][ T3593] ? lockdep_hardirqs_on+0x79/0x100 [ 53.372546][ T3593] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.378717][ T3593] do_syscall_64+0x35/0xb0 [ 53.383222][ T3593] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.389254][ T3593] RIP: 0033:0x7fbec165de1c [ 53.393660][ T3593] 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 [ 53.413255][ T3593] RSP: 002b:00007ffeacdd0f80 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.421744][ T3593] RAX: ffffffffffffffda RBX: 00007fbec26f6320 RCX: 00007fbec165de1c [ 53.429703][ T3593] RDX: 0000000000000048 RSI: 00007fbec26f6370 RDI: 0000000000000003 [ 53.437662][ T3593] RBP: 0000000000000000 R08: 00007ffeacdd0fd4 R09: 000000000000000c [ 53.445623][ T3593] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.453582][ T3593] R13: 00007fbec26f6370 R14: 0000000000000003 R15: 0000000000000000 [ 53.461552][ T3593] [ 53.472803][ T3593] device hsr_slave_0 entered promiscuous mode [ 53.479491][ T3593] device hsr_slave_1 entered promiscuous mode [ 53.559029][ T3593] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.569454][ T3593] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.579726][ T3593] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.588758][ T3593] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.610385][ T3593] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.617680][ T3593] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.625450][ T3593] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.632580][ T3593] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.678738][ T3593] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.691617][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.703038][ T3603] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.711725][ T3603] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.720121][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.733464][ T3593] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.742698][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.751609][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.761318][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.768433][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.788276][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.797225][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.806175][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.813296][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.821508][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.830532][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.839153][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.848246][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.871808][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.879685][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.888703][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.897690][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.906161][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.914957][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.923425][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.933241][ T3593] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.955637][ T3593] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.964137][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.971923][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 54.087684][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.096410][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.105791][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.114456][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.124039][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.132426][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.141629][ T3593] device veth0_vlan entered promiscuous mode [ 54.152856][ T3593] device veth1_vlan entered promiscuous mode [ 54.170769][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.179191][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.187650][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.196082][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.206041][ T3593] device veth0_macvtap entered promiscuous mode [ 54.216232][ T3593] device veth1_macvtap entered promiscuous mode [ 54.231518][ T3593] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.239889][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.248815][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.256855][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.265318][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.278007][ T3593] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.286870][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.295977][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.306087][ T3593] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.316663][ T3593] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.325495][ T3593] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.334960][ T3593] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.392420][ T45] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.400617][ T45] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.410151][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.433060][ T45] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.441553][ T45] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.450684][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 14:06:12 building call list... [ 54.718942][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.926802][ T3587] can: request_module (can-proto-0) failed. [ 56.949727][ T3587] can: request_module (can-proto-0) failed. [ 56.972084][ T3587] can: request_module (can-proto-0) failed. executing program [ 57.481596][ T3593] syz-executor.0 (3593) used greatest stack depth: 22488 bytes left [ 57.518089][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0