Warning: Permanently added '10.128.0.191' (ECDSA) to the list of known hosts. 2022/02/12 16:16:20 fuzzer started 2022/02/12 16:16:20 connecting to host at 10.128.0.169:46779 2022/02/12 16:16:20 checking machine... 2022/02/12 16:16:20 checking revisions... 2022/02/12 16:16:20 testing simple program... syzkaller login: [ 53.637253][ T3602] cgroup: Unknown subsys name 'net' [ 53.754453][ T3602] cgroup: Unknown subsys name 'rlimit' [ 55.016148][ T3605] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.024692][ T3605] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.034716][ T3605] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.043185][ T3605] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.051517][ T3605] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.059341][ T3605] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.152393][ T3604] chnl_net:caif_netlink_parms(): no params data found [ 55.196969][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.205542][ T3604] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.213785][ T3604] device bridge_slave_0 entered promiscuous mode [ 55.223862][ T3604] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.231354][ T3604] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.239788][ T3604] device bridge_slave_1 entered promiscuous mode [ 55.261570][ T3604] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.272765][ T3604] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.298288][ T3604] team0: Port device team_slave_0 added [ 55.306103][ T3604] team0: Port device team_slave_1 added [ 55.325127][ T3604] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.332208][ T3604] 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. [ 55.358749][ T3604] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.371865][ T3604] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.379205][ T3604] 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. [ 55.405525][ T3604] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.430091][ T3604] [ 55.432794][ T3604] ============================= [ 55.437755][ T3604] WARNING: suspicious RCU usage [ 55.442604][ T3604] 5.17.0-rc2-syzkaller-00955-g9c3de619e13e #0 Not tainted [ 55.449946][ T3604] ----------------------------- [ 55.454796][ T3604] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 55.463077][ T3604] [ 55.463077][ T3604] other info that might help us debug this: [ 55.463077][ T3604] [ 55.473626][ T3604] [ 55.473626][ T3604] rcu_scheduler_active = 2, debug_locks = 1 [ 55.482089][ T3604] 2 locks held by syz-executor.0/3604: [ 55.487743][ T3604] #0: ffffffff8d32caa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 55.497432][ T3604] #1: ffff888019e195f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 55.508331][ T3604] [ 55.508331][ T3604] stack backtrace: [ 55.514409][ T3604] CPU: 1 PID: 3604 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00955-g9c3de619e13e #0 [ 55.524915][ T3604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.535142][ T3604] Call Trace: [ 55.538434][ T3604] [ 55.541546][ T3604] dump_stack_lvl+0xcd/0x134 [ 55.546245][ T3604] hsr_node_get_first+0x9b/0xb0 [ 55.551232][ T3604] hsr_create_self_node+0x22d/0x650 [ 55.556797][ T3604] hsr_dev_finalize+0x2c1/0x7d0 [ 55.561668][ T3604] hsr_newlink+0x315/0x730 [ 55.566100][ T3604] ? hsr_dellink+0x130/0x130 [ 55.570869][ T3604] ? rtnl_create_link+0x7e8/0xc00 [ 55.576117][ T3604] ? hsr_dellink+0x130/0x130 [ 55.580889][ T3604] __rtnl_newlink+0x107c/0x1760 [ 55.585856][ T3604] ? rtnl_setlink+0x3c0/0x3c0 [ 55.590674][ T3604] ? is_bpf_text_address+0x77/0x170 [ 55.595967][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 55.600830][ T3604] ? unwind_next_frame+0xee1/0x1ce0 [ 55.606055][ T3604] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.612217][ T3604] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 55.617949][ T3604] ? is_bpf_text_address+0x99/0x170 [ 55.623171][ T3604] ? kernel_text_address+0x39/0x80 [ 55.628646][ T3604] ? __kernel_text_address+0x9/0x30 [ 55.634036][ T3604] ? unwind_get_return_address+0x51/0x90 [ 55.639674][ T3604] ? create_prof_cpu_mask+0x20/0x20 [ 55.644995][ T3604] ? arch_stack_walk+0x93/0xe0 [ 55.649926][ T3604] ? rcu_read_lock_sched_held+0x3a/0x70 [ 55.655663][ T3604] rtnl_newlink+0x64/0xa0 [ 55.660011][ T3604] ? __rtnl_newlink+0x1760/0x1760 [ 55.665207][ T3604] rtnetlink_rcv_msg+0x413/0xb80 [ 55.670171][ T3604] ? rtnl_newlink+0xa0/0xa0 [ 55.674779][ T3604] netlink_rcv_skb+0x153/0x420 [ 55.679558][ T3604] ? rtnl_newlink+0xa0/0xa0 [ 55.684265][ T3604] ? netlink_ack+0xa60/0xa60 [ 55.688870][ T3604] ? netlink_deliver_tap+0x1a2/0xc40 [ 55.694526][ T3604] ? netlink_deliver_tap+0x1b1/0xc40 [ 55.700366][ T3604] netlink_unicast+0x539/0x7e0 [ 55.705236][ T3604] ? netlink_attachskb+0x880/0x880 [ 55.710363][ T3604] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 55.716620][ T3604] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 55.722892][ T3604] ? __phys_addr_symbol+0x2c/0x70 [ 55.728932][ T3604] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 55.734843][ T3604] ? __check_object_size+0x16e/0x310 [ 55.740240][ T3604] netlink_sendmsg+0x904/0xe00 [ 55.745295][ T3604] ? netlink_unicast+0x7e0/0x7e0 [ 55.750254][ T3604] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 55.756680][ T3604] ? netlink_unicast+0x7e0/0x7e0 [ 55.761625][ T3604] sock_sendmsg+0xcf/0x120 [ 55.766158][ T3604] __sys_sendto+0x21c/0x320 [ 55.770848][ T3604] ? __ia32_sys_getpeername+0xb0/0xb0 [ 55.776328][ T3604] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 55.782354][ T3604] ? __context_tracking_exit+0xb8/0xe0 [ 55.787955][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 55.793625][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 55.798778][ T3604] __x64_sys_sendto+0xdd/0x1b0 [ 55.804099][ T3604] ? lockdep_hardirqs_on+0x79/0x100 [ 55.809422][ T3604] ? syscall_enter_from_user_mode+0x21/0x70 [ 55.815522][ T3604] do_syscall_64+0x35/0xb0 [ 55.819953][ T3604] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.825851][ T3604] RIP: 0033:0x7fa727558e1c [ 55.830330][ T3604] 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 [ 55.850207][ T3604] RSP: 002b:00007ffe062c7d90 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 55.858678][ T3604] RAX: ffffffffffffffda RBX: 00007fa7285f1320 RCX: 00007fa727558e1c [ 55.866835][ T3604] RDX: 0000000000000048 RSI: 00007fa7285f1370 RDI: 0000000000000003 [ 55.875331][ T3604] RBP: 0000000000000000 R08: 00007ffe062c7de4 R09: 000000000000000c [ 55.883324][ T3604] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 55.891472][ T3604] R13: 00007fa7285f1370 R14: 0000000000000003 R15: 0000000000000000 [ 55.899746][ T3604] [ 55.909135][ T3604] device hsr_slave_0 entered promiscuous mode [ 55.916760][ T3604] device hsr_slave_1 entered promiscuous mode [ 56.000469][ T3604] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.012110][ T3604] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.021807][ T3604] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.031473][ T3604] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.053857][ T3604] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.061110][ T3604] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.069191][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.076357][ T3604] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.122772][ T3604] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.135584][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.146792][ T140] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.155941][ T140] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.165326][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.180374][ T3604] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.200726][ T3613] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.209668][ T3613] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.218781][ T3613] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.226002][ T3613] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.237281][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.246784][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.255802][ T6] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.263136][ T6] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.278651][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.287890][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.296807][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.306226][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.315944][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.326245][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.335900][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.347668][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.356506][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.367564][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.376120][ T917] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.388834][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.406262][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.413961][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 56.426811][ T3604] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.541865][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.551235][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.565602][ T3604] device veth0_vlan entered promiscuous mode [ 56.572895][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.581875][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.592482][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.601140][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.613563][ T3604] device veth1_vlan entered promiscuous mode [ 56.633119][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.642101][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.651459][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 56.661151][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.672632][ T3604] device veth0_macvtap entered promiscuous mode [ 56.682527][ T3604] device veth1_macvtap entered promiscuous mode [ 56.699091][ T3604] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.706604][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.716107][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 56.724864][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 56.734536][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.748687][ T3604] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.756929][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 56.766738][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 56.779591][ T3604] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.790027][ T3604] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.799402][ T3604] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.808889][ T3604] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.879400][ T1202] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.890859][ T1202] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.909222][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 56.920400][ T1202] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.929294][ T1202] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.939350][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/12 16:16:23 building call list... [ 57.242613][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 59.409559][ T3604] syz-executor.0 (3604) used greatest stack depth: 22592 bytes left [ 59.417240][ T3625] can: request_module (can-proto-0) failed. [ 59.442100][ T3625] can: request_module (can-proto-0) failed. [ 59.465127][ T3625] can: request_module (can-proto-0) failed. [ 59.528521][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0