Warning: Permanently added '10.128.1.19' (ECDSA) to the list of known hosts. 2022/02/17 00:01:01 fuzzer started 2022/02/17 00:01:01 connecting to host at 10.128.0.169:37479 2022/02/17 00:01:01 checking machine... 2022/02/17 00:01:01 checking revisions... 2022/02/17 00:01:02 testing simple program... syzkaller login: [ 50.566117][ T3603] cgroup: Unknown subsys name 'net' [ 50.707984][ T3603] cgroup: Unknown subsys name 'rlimit' [ 51.951173][ T3606] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.959191][ T3606] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.966783][ T3606] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.974887][ T3606] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.983214][ T3606] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.990849][ T3606] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.077985][ T3605] chnl_net:caif_netlink_parms(): no params data found [ 52.119850][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.127545][ T3605] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.135580][ T3605] device bridge_slave_0 entered promiscuous mode [ 52.144718][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.152153][ T3605] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.159992][ T3605] device bridge_slave_1 entered promiscuous mode [ 52.182082][ T3605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.193141][ T3605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.216931][ T3605] team0: Port device team_slave_0 added [ 52.224570][ T3605] team0: Port device team_slave_1 added [ 52.242194][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.249167][ 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. [ 52.275397][ T3605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.288329][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.295424][ 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. [ 52.322814][ T3605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.351067][ T3605] [ 52.353611][ T3605] ============================= [ 52.358456][ T3605] WARNING: suspicious RCU usage [ 52.363364][ T3605] 5.17.0-rc2-syzkaller-00970-gf76d8507d238 #0 Not tainted [ 52.370720][ T3605] ----------------------------- [ 52.375654][ T3605] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.383872][ T3605] [ 52.383872][ T3605] other info that might help us debug this: [ 52.383872][ T3605] [ 52.394248][ T3605] [ 52.394248][ T3605] rcu_scheduler_active = 2, debug_locks = 1 [ 52.402385][ T3605] 2 locks held by syz-executor.0/3605: [ 52.407854][ T3605] #0: ffffffff8d32caa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 52.417362][ T3605] #1: ffff8880771755f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 52.427546][ T3605] [ 52.427546][ T3605] stack backtrace: [ 52.433527][ T3605] CPU: 0 PID: 3605 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00970-gf76d8507d238 #0 [ 52.443964][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.454114][ T3605] Call Trace: [ 52.457393][ T3605] [ 52.460320][ T3605] dump_stack_lvl+0xcd/0x134 [ 52.465616][ T3605] hsr_node_get_first+0x9b/0xb0 [ 52.470561][ T3605] hsr_create_self_node+0x22d/0x650 [ 52.475773][ T3605] hsr_dev_finalize+0x2c1/0x7d0 [ 52.480627][ T3605] hsr_newlink+0x315/0x730 [ 52.485045][ T3605] ? hsr_dellink+0x130/0x130 [ 52.489646][ T3605] ? rtnl_create_link+0x7e8/0xc00 [ 52.494700][ T3605] ? hsr_dellink+0x130/0x130 [ 52.499306][ T3605] __rtnl_newlink+0x107c/0x1760 [ 52.504176][ T3605] ? rtnl_setlink+0x3c0/0x3c0 [ 52.508871][ T3605] ? is_bpf_text_address+0x77/0x170 [ 52.514090][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 52.518967][ T3605] ? unwind_next_frame+0xee1/0x1ce0 [ 52.524429][ T3605] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.530528][ T3605] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 52.536280][ T3605] ? is_bpf_text_address+0x99/0x170 [ 52.541509][ T3605] ? kernel_text_address+0x39/0x80 [ 52.546643][ T3605] ? __kernel_text_address+0x9/0x30 [ 52.551844][ T3605] ? unwind_get_return_address+0x51/0x90 [ 52.557508][ T3605] ? create_prof_cpu_mask+0x20/0x20 [ 52.562827][ T3605] ? arch_stack_walk+0x93/0xe0 [ 52.567667][ T3605] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 52.573146][ T3605] ? rcu_read_lock_sched_held+0x3a/0x70 [ 52.578806][ T3605] rtnl_newlink+0x64/0xa0 [ 52.583140][ T3605] ? __rtnl_newlink+0x1760/0x1760 [ 52.588182][ T3605] rtnetlink_rcv_msg+0x413/0xb80 [ 52.593227][ T3605] ? rtnl_newlink+0xa0/0xa0 [ 52.597752][ T3605] netlink_rcv_skb+0x153/0x420 [ 52.602520][ T3605] ? rtnl_newlink+0xa0/0xa0 [ 52.607030][ T3605] ? netlink_ack+0xa60/0xa60 [ 52.611622][ T3605] ? netlink_deliver_tap+0x1a2/0xc40 [ 52.616917][ T3605] ? netlink_deliver_tap+0x1b1/0xc40 [ 52.622209][ T3605] netlink_unicast+0x539/0x7e0 [ 52.626984][ T3605] ? netlink_attachskb+0x880/0x880 [ 52.632183][ T3605] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 52.638456][ T3605] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 52.644701][ T3605] ? __phys_addr_symbol+0x2c/0x70 [ 52.649731][ T3605] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 52.656063][ T3605] ? __check_object_size+0x16e/0x310 [ 52.661355][ T3605] netlink_sendmsg+0x904/0xe00 [ 52.666128][ T3605] ? netlink_unicast+0x7e0/0x7e0 [ 52.671074][ T3605] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 52.677323][ T3605] ? netlink_unicast+0x7e0/0x7e0 [ 52.682968][ T3605] sock_sendmsg+0xcf/0x120 [ 52.687669][ T3605] __sys_sendto+0x21c/0x320 [ 52.692193][ T3605] ? __ia32_sys_getpeername+0xb0/0xb0 [ 52.697600][ T3605] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 52.703623][ T3605] ? __context_tracking_exit+0xb8/0xe0 [ 52.709088][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 52.713944][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 52.718826][ T3605] __x64_sys_sendto+0xdd/0x1b0 [ 52.723592][ T3605] ? lockdep_hardirqs_on+0x79/0x100 [ 52.728799][ T3605] ? syscall_enter_from_user_mode+0x21/0x70 [ 52.734700][ T3605] do_syscall_64+0x35/0xb0 [ 52.739122][ T3605] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.745015][ T3605] RIP: 0033:0x7fd987ca2e1c [ 52.749444][ 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 [ 52.769312][ T3605] RSP: 002b:00007ffe07287330 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 52.777724][ T3605] RAX: ffffffffffffffda RBX: 00007fd988d3b320 RCX: 00007fd987ca2e1c [ 52.785699][ T3605] RDX: 0000000000000048 RSI: 00007fd988d3b370 RDI: 0000000000000003 [ 52.793665][ T3605] RBP: 0000000000000000 R08: 00007ffe07287384 R09: 000000000000000c [ 52.801643][ T3605] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 52.809697][ T3605] R13: 00007fd988d3b370 R14: 0000000000000003 R15: 0000000000000000 [ 52.817881][ T3605] [ 52.828244][ T3605] device hsr_slave_0 entered promiscuous mode [ 52.837144][ T3605] device hsr_slave_1 entered promiscuous mode [ 52.948161][ T3605] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.958294][ T3605] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.968148][ T3605] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.976909][ T3605] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.997912][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.005459][ T3605] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.013531][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.020772][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.065382][ T3605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.077050][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.087671][ T918] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.096749][ T918] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.105734][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.118752][ T3605] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.128727][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.137617][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.146646][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.153940][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.172010][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.181474][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.189846][ T918] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.196954][ T918] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.205261][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.214501][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.223966][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.232707][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.241837][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.258629][ T3605] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.269189][ T3605] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.284293][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.293630][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.302610][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.310974][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.319754][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.328229][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.347337][ T3605] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.356047][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.363927][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready executing program [ 53.371463][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.481128][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.489770][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.504732][ T3605] device veth0_vlan entered promiscuous mode [ 53.512587][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.521134][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.532718][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.540408][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.552602][ T3605] device veth1_vlan entered promiscuous mode [ 53.570058][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.578065][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.586666][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 53.595441][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.606399][ T3605] device veth0_macvtap entered promiscuous mode [ 53.616473][ T3605] device veth1_macvtap entered promiscuous mode [ 53.631300][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.638722][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.647220][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 53.655273][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 53.664007][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.675665][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.683415][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 53.692370][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.704157][ T3605] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.713640][ T3605] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.722393][ T3605] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.731258][ T3605] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.793771][ T1303] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.801996][ T1303] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.812634][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.832348][ T1303] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.840215][ T1303] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.849014][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 00:01:05 building call list... [ 54.085296][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.217906][ T3600] can: request_module (can-proto-0) failed. [ 56.240849][ T3600] can: request_module (can-proto-0) failed. [ 56.264687][ T3600] can: request_module (can-proto-0) failed. executing program [ 56.692516][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.842553][ T3605] syz-executor.0 (3605) used greatest stack depth: 22400 bytes left