Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. 2022/02/17 10:04:20 fuzzer started 2022/02/17 10:04:20 connecting to host at 10.128.0.169:41813 2022/02/17 10:04:20 checking machine... 2022/02/17 10:04:20 checking revisions... 2022/02/17 10:04:20 testing simple program... syzkaller login: [ 51.488964][ T3593] cgroup: Unknown subsys name 'net' [ 51.600218][ T3593] cgroup: Unknown subsys name 'rlimit' [ 52.863639][ T3596] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.871731][ T3596] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.879556][ T3596] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.888406][ T3596] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.896412][ T3596] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.904058][ T3596] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.991612][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 53.035640][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.043560][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.051526][ T3595] device bridge_slave_0 entered promiscuous mode [ 53.062072][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.069341][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.077322][ T3595] device bridge_slave_1 entered promiscuous mode [ 53.104526][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.115896][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.138496][ T3595] team0: Port device team_slave_0 added [ 53.146729][ T3595] team0: Port device team_slave_1 added [ 53.164360][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.171299][ T3595] 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. [ 53.198246][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.211164][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.218297][ T3595] 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. [ 53.244308][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.267798][ T3595] [ 53.270254][ T3595] ============================= [ 53.275281][ T3595] WARNING: suspicious RCU usage [ 53.280132][ T3595] 5.17.0-rc4-next-20220217-syzkaller #0 Not tainted [ 53.286737][ T3595] ----------------------------- [ 53.291567][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 53.299769][ T3595] [ 53.299769][ T3595] other info that might help us debug this: [ 53.299769][ T3595] [ 53.310026][ T3595] [ 53.310026][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 53.318132][ T3595] 2 locks held by syz-executor.0/3595: [ 53.323626][ T3595] #0: ffffffff8d539528 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.333041][ T3595] #1: ffff888024ba15f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.343180][ T3595] [ 53.343180][ T3595] stack backtrace: [ 53.349092][ T3595] CPU: 0 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220217-syzkaller #0 [ 53.358977][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.369017][ T3595] Call Trace: [ 53.372290][ T3595] [ 53.375207][ T3595] dump_stack_lvl+0xcd/0x134 [ 53.379794][ T3595] hsr_node_get_first+0x9b/0xb0 [ 53.384638][ T3595] hsr_create_self_node+0x22d/0x650 [ 53.389827][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 53.394664][ T3595] hsr_newlink+0x315/0x730 [ 53.399090][ T3595] ? hsr_dellink+0x130/0x130 [ 53.403678][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 53.408704][ T3595] ? hsr_dellink+0x130/0x130 [ 53.413289][ T3595] __rtnl_newlink+0x107c/0x1760 [ 53.418143][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 53.422822][ T3595] ? is_bpf_text_address+0x77/0x170 [ 53.428017][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 53.432857][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 53.438042][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.444103][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.449815][ T3595] ? is_bpf_text_address+0x99/0x170 [ 53.455086][ T3595] ? kernel_text_address+0x39/0x80 [ 53.460209][ T3595] ? __kernel_text_address+0x9/0x30 [ 53.465415][ T3595] ? unwind_get_return_address+0x51/0x90 [ 53.471052][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 53.476263][ T3595] ? arch_stack_walk+0x93/0xe0 [ 53.481074][ T3595] ? kmem_cache_alloc_trace+0x42/0x3d0 [ 53.486550][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.492092][ T3595] rtnl_newlink+0x64/0xa0 [ 53.496412][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 53.501423][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 53.506361][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.511133][ T3595] netlink_rcv_skb+0x153/0x420 [ 53.515922][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 53.520849][ T3595] ? netlink_ack+0xa80/0xa80 [ 53.525426][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.530699][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.535975][ T3595] netlink_unicast+0x539/0x7e0 [ 53.540733][ T3595] ? netlink_attachskb+0x880/0x880 [ 53.545843][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.552085][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.558338][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 53.563354][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.569065][ T3595] ? __check_object_size+0x16c/0x4f0 [ 53.574339][ T3595] netlink_sendmsg+0x904/0xe00 [ 53.579108][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 53.584049][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.590281][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 53.595223][ T3595] sock_sendmsg+0xcf/0x120 [ 53.599646][ T3595] __sys_sendto+0x21c/0x320 [ 53.604138][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.609499][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 53.614698][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 53.620149][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 53.625005][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 53.629757][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 53.634959][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.640839][ T3595] do_syscall_64+0x35/0xb0 [ 53.645274][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.651173][ T3595] RIP: 0033:0x7fe4a9abce1c [ 53.655576][ T3595] 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 [ 53.675167][ T3595] RSP: 002b:00007ffe2c0d47b0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.683581][ T3595] RAX: ffffffffffffffda RBX: 00007fe4aab55320 RCX: 00007fe4a9abce1c [ 53.691535][ T3595] RDX: 0000000000000048 RSI: 00007fe4aab55370 RDI: 0000000000000003 [ 53.699503][ T3595] RBP: 0000000000000000 R08: 00007ffe2c0d4804 R09: 000000000000000c [ 53.707544][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.715513][ T3595] R13: 00007fe4aab55370 R14: 0000000000000003 R15: 0000000000000000 [ 53.723480][ T3595] [ 53.731257][ T3595] device hsr_slave_0 entered promiscuous mode [ 53.738545][ T3595] device hsr_slave_1 entered promiscuous mode [ 53.821796][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.832378][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.841867][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.852443][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.874180][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.881346][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.889283][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.896494][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.940810][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.954747][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.965972][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.975179][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.982986][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.998107][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.023830][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.032446][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.041193][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.048321][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.055945][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.064790][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.073728][ T14] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.080968][ T14] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.088878][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.098189][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.107027][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 54.115754][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.124571][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.133052][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.141665][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.150345][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.160511][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.168520][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.177087][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.189122][ T3595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.210840][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.220393][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.228206][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 54.335960][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.345049][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.362459][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.371546][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.382129][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.390157][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.398571][ T3595] device veth0_vlan entered promiscuous mode [ 54.410336][ T3595] device veth1_vlan entered promiscuous mode [ 54.429081][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.437884][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.446206][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.455760][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.466917][ T3595] device veth0_macvtap entered promiscuous mode [ 54.477130][ T3595] device veth1_macvtap entered promiscuous mode [ 54.491844][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.499848][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.508046][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.516403][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.525545][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.538236][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.545922][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.555443][ T1130] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.566670][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.576364][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.585430][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.595575][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.656785][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.665794][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.680274][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.698633][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.706912][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.716972][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/17 10:04:24 building call list... [ 57.056477][ T3591] can: request_module (can-proto-0) failed. [ 57.081160][ T3591] can: request_module (can-proto-0) failed. [ 57.102380][ T3591] can: request_module (can-proto-0) failed. executing program [ 57.786958][ T54] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0