Warning: Permanently added '10.128.1.68' (ECDSA) to the list of known hosts. 2022/02/21 20:03:49 fuzzer started 2022/02/21 20:03:49 connecting to host at 10.128.0.169:42411 2022/02/21 20:03:49 checking machine... 2022/02/21 20:03:49 checking revisions... 2022/02/21 20:03:49 testing simple program... syzkaller login: [ 51.137858][ T3594] cgroup: Unknown subsys name 'net' [ 51.267491][ T3594] cgroup: Unknown subsys name 'rlimit' [ 52.527154][ T3599] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.535398][ T3599] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.543552][ T3599] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.551798][ T3599] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.559594][ T3599] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.567244][ T3599] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.658055][ T3596] chnl_net:caif_netlink_parms(): no params data found [ 52.701226][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.708608][ T3596] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.716833][ T3596] device bridge_slave_0 entered promiscuous mode [ 52.726870][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.734151][ T3596] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.742371][ T3596] device bridge_slave_1 entered promiscuous mode [ 52.765829][ T3596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.777036][ T3596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.801193][ T3596] team0: Port device team_slave_0 added [ 52.809014][ T3596] team0: Port device team_slave_1 added [ 52.826407][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.833630][ 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. [ 52.859838][ T3596] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.873161][ T3596] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.880296][ 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. [ 52.907230][ T3596] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.932510][ T3596] [ 52.934970][ T3596] ============================= [ 52.939804][ T3596] WARNING: suspicious RCU usage [ 52.944720][ T3596] 5.17.0-rc4-next-20220217-syzkaller #0 Not tainted [ 52.951350][ T3596] ----------------------------- [ 52.956217][ T3596] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 52.964398][ T3596] [ 52.964398][ T3596] other info that might help us debug this: [ 52.964398][ T3596] [ 52.974735][ T3596] [ 52.974735][ T3596] rcu_scheduler_active = 2, debug_locks = 1 [ 52.982862][ T3596] 2 locks held by syz-executor.0/3596: [ 52.988352][ T3596] #0: ffffffff8d539528 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 52.997897][ T3596] #1: ffff88801e3755f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.008092][ T3596] [ 53.008092][ T3596] stack backtrace: [ 53.014350][ T3596] CPU: 0 PID: 3596 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220217-syzkaller #0 [ 53.024253][ T3596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.034333][ T3596] Call Trace: [ 53.037603][ T3596] [ 53.040527][ T3596] dump_stack_lvl+0xcd/0x134 [ 53.045200][ T3596] hsr_node_get_first+0x9b/0xb0 [ 53.050166][ T3596] hsr_create_self_node+0x22d/0x650 [ 53.055517][ T3596] hsr_dev_finalize+0x2c1/0x7d0 [ 53.060386][ T3596] hsr_newlink+0x315/0x730 [ 53.064821][ T3596] ? hsr_dellink+0x130/0x130 [ 53.069404][ T3596] ? rtnl_create_link+0x7e8/0xc00 [ 53.074423][ T3596] ? hsr_dellink+0x130/0x130 [ 53.079012][ T3596] __rtnl_newlink+0x107c/0x1760 [ 53.083861][ T3596] ? rtnl_setlink+0x3c0/0x3c0 [ 53.088546][ T3596] ? is_bpf_text_address+0x77/0x170 [ 53.093738][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 53.098581][ T3596] ? unwind_next_frame+0xee1/0x1ce0 [ 53.103765][ T3596] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.109826][ T3596] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.115549][ T3596] ? is_bpf_text_address+0x99/0x170 [ 53.120769][ T3596] ? kernel_text_address+0x39/0x80 [ 53.125909][ T3596] ? __kernel_text_address+0x9/0x30 [ 53.131123][ T3596] ? unwind_get_return_address+0x51/0x90 [ 53.136767][ T3596] ? create_prof_cpu_mask+0x20/0x20 [ 53.141978][ T3596] ? arch_stack_walk+0x93/0xe0 [ 53.146815][ T3596] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 53.152322][ T3596] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.158008][ T3596] rtnl_newlink+0x64/0xa0 [ 53.162367][ T3596] ? __rtnl_newlink+0x1760/0x1760 [ 53.167415][ T3596] rtnetlink_rcv_msg+0x413/0xb80 [ 53.172368][ T3596] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.177187][ T3596] netlink_rcv_skb+0x153/0x420 [ 53.182493][ T3596] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.187286][ T3596] ? netlink_ack+0xa80/0xa80 [ 53.191894][ T3596] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.197197][ T3596] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.202494][ T3596] netlink_unicast+0x539/0x7e0 [ 53.207271][ T3596] ? netlink_attachskb+0x880/0x880 [ 53.212401][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.218658][ T3596] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.224925][ T3596] ? __phys_addr_symbol+0x2c/0x70 [ 53.229959][ T3596] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.235690][ T3596] ? __check_object_size+0x16c/0x4f0 [ 53.241680][ T3596] netlink_sendmsg+0x904/0xe00 [ 53.246457][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 53.251509][ T3596] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.258119][ T3596] ? netlink_unicast+0x7e0/0x7e0 [ 53.263074][ T3596] sock_sendmsg+0xcf/0x120 [ 53.267529][ T3596] __sys_sendto+0x21c/0x320 [ 53.272066][ T3596] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.277461][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 53.282708][ T3596] ? __context_tracking_exit+0xb8/0xe0 [ 53.288201][ T3596] ? lock_downgrade+0x6e0/0x6e0 [ 53.293174][ T3596] __x64_sys_sendto+0xdd/0x1b0 [ 53.297951][ T3596] ? lockdep_hardirqs_on+0x79/0x100 [ 53.303307][ T3596] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.309234][ T3596] do_syscall_64+0x35/0xb0 [ 53.313672][ T3596] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.319591][ T3596] RIP: 0033:0x7faa13285e1c [ 53.324106][ 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 [ 53.343724][ T3596] RSP: 002b:00007fff8a2b5700 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.352241][ T3596] RAX: ffffffffffffffda RBX: 00007faa1431e320 RCX: 00007faa13285e1c [ 53.360219][ T3596] RDX: 0000000000000048 RSI: 00007faa1431e370 RDI: 0000000000000003 [ 53.368185][ T3596] RBP: 0000000000000000 R08: 00007fff8a2b5754 R09: 000000000000000c [ 53.376359][ T3596] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.384364][ T3596] R13: 00007faa1431e370 R14: 0000000000000003 R15: 0000000000000000 [ 53.392671][ T3596] [ 53.400297][ T3596] device hsr_slave_0 entered promiscuous mode [ 53.407578][ T3596] device hsr_slave_1 entered promiscuous mode [ 53.490487][ T3596] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.501187][ T3596] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.510020][ T3596] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.519804][ T3596] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.541536][ T3596] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.548903][ T3596] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.557763][ T3596] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.564881][ T3596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.609830][ T3596] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.625454][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.635158][ T917] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.644701][ T917] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.652851][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.666031][ T3596] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.675315][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.684150][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.692999][ T3258] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.700273][ T3258] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.718293][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.728325][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.737787][ T3258] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.744886][ T3258] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.752750][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.761397][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.769855][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.778787][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.797182][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.805029][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.814603][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.823038][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.831518][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.845504][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.853870][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.865151][ T3596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.887396][ T3596] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.895710][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.903824][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 54.010983][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.019844][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.037307][ T3596] device veth0_vlan entered promiscuous mode [ 54.045738][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.054307][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.065221][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.073376][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.085215][ T3596] device veth1_vlan entered promiscuous mode [ 54.104102][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.112543][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.121262][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.129772][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.141876][ T3596] device veth0_macvtap entered promiscuous mode [ 54.151517][ T3596] device veth1_macvtap entered promiscuous mode [ 54.167716][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.177578][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.186285][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.194700][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.203880][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.214900][ T3596] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.224309][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.233048][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.242987][ T3596] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.253238][ T3596] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.262437][ T3596] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.272624][ T3596] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.336192][ T978] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.350857][ T978] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.360455][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.373746][ T978] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.382628][ T978] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.393503][ T3258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/21 20:03:53 building call list... [ 56.885442][ T3589] can: request_module (can-proto-0) failed. [ 56.908804][ T3589] can: request_module (can-proto-0) failed. executing program [ 56.934931][ T3589] can: request_module (can-proto-0) failed. [ 57.435956][ T3596] syz-executor.0 (3596) used greatest stack depth: 22568 bytes left [ 57.464014][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0