Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts. 2022/02/24 13:02:32 fuzzer started 2022/02/24 13:02:32 connecting to host at 10.128.0.169:36475 2022/02/24 13:02:32 checking machine... 2022/02/24 13:02:32 checking revisions... 2022/02/24 13:02:33 testing simple program... syzkaller login: [ 49.528669][ T3594] cgroup: Unknown subsys name 'net' [ 49.692944][ T3594] cgroup: Unknown subsys name 'rlimit' [ 50.949737][ T3598] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.957910][ T3598] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.965654][ T3598] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.973881][ T3600] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.981461][ T3600] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.989071][ T3600] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.080784][ T3596] chnl_net:caif_netlink_parms(): no params data found [ 51.123365][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.132416][ T3596] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.140909][ T3596] device bridge_slave_0 entered promiscuous mode [ 51.150686][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.158601][ T3596] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.166843][ T3596] device bridge_slave_1 entered promiscuous mode [ 51.189320][ T3596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.200628][ T3596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.224467][ T3596] team0: Port device team_slave_0 added [ 51.231946][ T3596] team0: Port device team_slave_1 added [ 51.250433][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.257612][ T3596] 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. [ 51.283958][ T3596] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.297338][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.304454][ T3596] 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. [ 51.330857][ T3596] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.355223][ T3596] [ 51.357717][ T3596] ============================= [ 51.362585][ T3596] WARNING: suspicious RCU usage [ 51.367492][ T3596] 5.17.0-rc4-syzkaller-01359-g08d4dba6ae77 #0 Not tainted [ 51.374690][ T3596] ----------------------------- [ 51.379586][ T3596] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 51.387964][ T3596] [ 51.387964][ T3596] other info that might help us debug this: [ 51.387964][ T3596] [ 51.398245][ T3596] [ 51.398245][ T3596] rcu_scheduler_active = 2, debug_locks = 1 [ 51.406371][ T3596] 2 locks held by syz-executor.0/3596: [ 51.411849][ T3596] #0: ffffffff8d32f868 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 51.421448][ T3596] #1: ffff88801c3895f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 51.431723][ T3596] [ 51.431723][ T3596] stack backtrace: [ 51.437718][ T3596] CPU: 1 PID: 3596 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller-01359-g08d4dba6ae77 #0 [ 51.448256][ T3596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.458312][ T3596] Call Trace: [ 51.461586][ T3596] [ 51.464512][ T3596] dump_stack_lvl+0xcd/0x134 [ 51.469107][ T3596] hsr_node_get_first+0x9b/0xb0 [ 51.474212][ T3596] hsr_create_self_node+0x22d/0x650 [ 51.479414][ T3596] hsr_dev_finalize+0x2c1/0x7d0 [ 51.484519][ T3596] hsr_newlink+0x315/0x730 [ 51.488931][ T3596] ? hsr_dellink+0x130/0x130 [ 51.493511][ T3596] ? rtnl_create_link+0x7e8/0xc00 [ 51.498594][ T3596] ? hsr_dellink+0x130/0x130 [ 51.503260][ T3596] __rtnl_newlink+0x107c/0x1760 [ 51.508133][ T3596] ? rtnl_setlink+0x3c0/0x3c0 [ 51.512832][ T3596] ? is_bpf_text_address+0x77/0x170 [ 51.518203][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 51.523055][ T3596] ? unwind_next_frame+0xee1/0x1ce0 [ 51.528248][ T3596] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.534307][ T3596] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 51.540024][ T3596] ? is_bpf_text_address+0x99/0x170 [ 51.545223][ T3596] ? kernel_text_address+0x39/0x80 [ 51.550331][ T3596] ? __kernel_text_address+0x9/0x30 [ 51.555523][ T3596] ? unwind_get_return_address+0x51/0x90 [ 51.561173][ T3596] ? create_prof_cpu_mask+0x20/0x20 [ 51.566371][ T3596] ? arch_stack_walk+0x93/0xe0 [ 51.571209][ T3596] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.576783][ T3596] rtnl_newlink+0x64/0xa0 [ 51.581107][ T3596] ? __rtnl_newlink+0x1760/0x1760 [ 51.586210][ T3596] rtnetlink_rcv_msg+0x413/0xb80 [ 51.591144][ T3596] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.595923][ T3596] netlink_rcv_skb+0x153/0x420 [ 51.600768][ T3596] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.605537][ T3596] ? netlink_ack+0xa60/0xa60 [ 51.610121][ T3596] ? netlink_deliver_tap+0x1a2/0xc40 [ 51.615403][ T3596] ? netlink_deliver_tap+0x1b1/0xc40 [ 51.620686][ T3596] netlink_unicast+0x539/0x7e0 [ 51.625450][ T3596] ? netlink_attachskb+0x880/0x880 [ 51.630554][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.636794][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.643037][ T3596] ? __phys_addr_symbol+0x2c/0x70 [ 51.648063][ T3596] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 51.653802][ T3596] ? __check_object_size+0x16e/0x310 [ 51.659087][ T3596] netlink_sendmsg+0x904/0xe00 [ 51.663851][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 51.668960][ T3596] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.675198][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 51.680139][ T3596] sock_sendmsg+0xcf/0x120 [ 51.684554][ T3596] __sys_sendto+0x21c/0x320 [ 51.689143][ T3596] ? __ia32_sys_getpeername+0xb0/0xb0 [ 51.694502][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 51.699745][ T3596] ? __context_tracking_exit+0xb8/0xe0 [ 51.705223][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 51.710080][ T3596] __x64_sys_sendto+0xdd/0x1b0 [ 51.714980][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 51.720178][ T3596] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.726062][ T3596] do_syscall_64+0x35/0xb0 [ 51.730477][ T3596] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.736399][ T3596] RIP: 0033:0x7fe3ef2fce1c [ 51.740900][ T3596] 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 [ 51.760515][ T3596] RSP: 002b:00007ffdcd95c7e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 51.768926][ T3596] RAX: ffffffffffffffda RBX: 00007fe3f0395320 RCX: 00007fe3ef2fce1c [ 51.776892][ T3596] RDX: 0000000000000048 RSI: 00007fe3f0395370 RDI: 0000000000000003 [ 51.784946][ T3596] RBP: 0000000000000000 R08: 00007ffdcd95c834 R09: 000000000000000c [ 51.792905][ T3596] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 51.800869][ T3596] R13: 00007fe3f0395370 R14: 0000000000000003 R15: 0000000000000000 [ 51.808846][ T3596] [ 51.819842][ T3596] device hsr_slave_0 entered promiscuous mode [ 51.827421][ T3596] device hsr_slave_1 entered promiscuous mode [ 51.907728][ T3596] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.918724][ T3596] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.928233][ T3596] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.937682][ T3596] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.959670][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.966983][ T3596] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.974860][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.982131][ T3596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.025440][ T3596] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.040573][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.051559][ T39] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.060563][ T39] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.070046][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.084618][ T3596] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.094877][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.104032][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.112905][ T3606] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.120027][ T3606] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.131756][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.141011][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.150537][ T3608] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.157810][ T3608] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.178220][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.186980][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.197073][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.205875][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.215869][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.224753][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.234994][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.245257][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.253881][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.267863][ T3596] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.279791][ T3596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.289416][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.297953][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.314654][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.322210][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 52.335529][ T3596] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.446167][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.455062][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.468581][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.478329][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.488440][ T3596] device veth0_vlan entered promiscuous mode [ 52.496469][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.504389][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.517726][ T3596] device veth1_vlan entered promiscuous mode [ 52.535463][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.544412][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.552901][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.562009][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.573625][ T3596] device veth0_macvtap entered promiscuous mode [ 52.583560][ T3596] device veth1_macvtap entered promiscuous mode [ 52.598542][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.607271][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.615289][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.623639][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.632612][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.644369][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.652040][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.660740][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.672893][ T3596] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.682673][ T3596] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.691466][ T3596] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.700977][ T3596] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.760574][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.775160][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.789230][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.798857][ T49] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.807342][ T49] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.816067][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/24 13:02:36 building call list... [ 53.061096][ T54] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.231679][ T3590] can: request_module (can-proto-0) failed. [ 55.255039][ T3590] can: request_module (can-proto-0) failed. executing program [ 55.283544][ T3590] can: request_module (can-proto-0) failed. [ 55.316676][ T54] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.561549][ T3596] syz-executor.0 (3596) used greatest stack depth: 22064 bytes left