DUID 00:04:1b:66:36:25:cc:bb:2d:eb:42:73:ce:96:f3:b7:d0:c0 forked to background, child pid 3174 [ 30.910161][ T3175] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.924090][ T3175] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts. 2022/02/16 22:33:13 fuzzer started 2022/02/16 22:33:13 connecting to host at 10.128.0.169:35113 2022/02/16 22:33:13 checking machine... 2022/02/16 22:33:13 checking revisions... 2022/02/16 22:33:13 testing simple program... syzkaller login: [ 51.422840][ T3595] cgroup: Unknown subsys name 'net' [ 51.545011][ T3595] cgroup: Unknown subsys name 'rlimit' [ 52.789735][ T3598] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.799145][ T3598] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.807202][ T3598] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.817162][ T3598] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.825294][ T3598] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.833325][ T3598] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.932118][ T3597] chnl_net:caif_netlink_parms(): no params data found [ 52.975200][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.983352][ T3597] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.991854][ T3597] device bridge_slave_0 entered promiscuous mode [ 53.001482][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.008844][ T3597] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.016797][ T3597] device bridge_slave_1 entered promiscuous mode [ 53.038012][ T3597] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.049881][ T3597] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.073106][ T3597] team0: Port device team_slave_0 added [ 53.080653][ T3597] team0: Port device team_slave_1 added [ 53.099762][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.107489][ T3597] 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. [ 53.134537][ T3597] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.147956][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.155844][ T3597] 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. [ 53.183408][ T3597] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.208203][ T3597] [ 53.210701][ T3597] ============================= [ 53.215600][ T3597] WARNING: suspicious RCU usage [ 53.220789][ T3597] 5.17.0-rc2-syzkaller-00969-g477bb4c1baa7 #0 Not tainted [ 53.227980][ T3597] ----------------------------- [ 53.232987][ T3597] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 53.241372][ T3597] [ 53.241372][ T3597] other info that might help us debug this: [ 53.241372][ T3597] [ 53.251862][ T3597] [ 53.251862][ T3597] rcu_scheduler_active = 2, debug_locks = 1 [ 53.260055][ T3597] 2 locks held by syz-executor.0/3597: [ 53.265624][ T3597] #0: ffffffff8d32caa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 53.275444][ T3597] #1: ffff8880745c95f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 53.285979][ T3597] [ 53.285979][ T3597] stack backtrace: [ 53.292306][ T3597] CPU: 1 PID: 3597 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00969-g477bb4c1baa7 #0 [ 53.303475][ T3597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.313788][ T3597] Call Trace: [ 53.317059][ T3597] [ 53.319987][ T3597] dump_stack_lvl+0xcd/0x134 [ 53.324852][ T3597] hsr_node_get_first+0x9b/0xb0 [ 53.329719][ T3597] hsr_create_self_node+0x22d/0x650 [ 53.335118][ T3597] hsr_dev_finalize+0x2c1/0x7d0 [ 53.340090][ T3597] hsr_newlink+0x315/0x730 [ 53.344826][ T3597] ? hsr_dellink+0x130/0x130 [ 53.350310][ T3597] ? rtnl_create_link+0x7e8/0xc00 [ 53.355485][ T3597] ? hsr_dellink+0x130/0x130 [ 53.360403][ T3597] __rtnl_newlink+0x107c/0x1760 [ 53.365467][ T3597] ? rtnl_setlink+0x3c0/0x3c0 [ 53.371132][ T3597] ? is_bpf_text_address+0x77/0x170 [ 53.376595][ T3597] ? lock_downgrade+0x6e0/0x6e0 [ 53.381633][ T3597] ? unwind_next_frame+0xee1/0x1ce0 [ 53.387188][ T3597] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.393303][ T3597] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 53.399408][ T3597] ? is_bpf_text_address+0x99/0x170 [ 53.404650][ T3597] ? kernel_text_address+0x39/0x80 [ 53.410273][ T3597] ? __kernel_text_address+0x9/0x30 [ 53.416238][ T3597] ? unwind_get_return_address+0x51/0x90 [ 53.422069][ T3597] ? create_prof_cpu_mask+0x20/0x20 [ 53.427286][ T3597] ? arch_stack_walk+0x93/0xe0 [ 53.432265][ T3597] ? kmem_cache_alloc_trace+0x42/0x2c0 [ 53.437898][ T3597] ? rcu_read_lock_sched_held+0x3a/0x70 [ 53.444087][ T3597] rtnl_newlink+0x64/0xa0 [ 53.448429][ T3597] ? __rtnl_newlink+0x1760/0x1760 [ 53.453551][ T3597] rtnetlink_rcv_msg+0x413/0xb80 [ 53.458713][ T3597] ? rtnl_newlink+0xa0/0xa0 [ 53.463942][ T3597] netlink_rcv_skb+0x153/0x420 [ 53.468711][ T3597] ? rtnl_newlink+0xa0/0xa0 [ 53.473220][ T3597] ? netlink_ack+0xa60/0xa60 [ 53.478081][ T3597] ? netlink_deliver_tap+0x1a2/0xc40 [ 53.483683][ T3597] ? netlink_deliver_tap+0x1b1/0xc40 [ 53.489263][ T3597] netlink_unicast+0x539/0x7e0 [ 53.494466][ T3597] ? netlink_attachskb+0x880/0x880 [ 53.499946][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.506431][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 53.512873][ T3597] ? __phys_addr_symbol+0x2c/0x70 [ 53.518257][ T3597] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 53.524319][ T3597] ? __check_object_size+0x16e/0x310 [ 53.529734][ T3597] netlink_sendmsg+0x904/0xe00 [ 53.534668][ T3597] ? netlink_unicast+0x7e0/0x7e0 [ 53.539642][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 53.546690][ T3597] ? netlink_unicast+0x7e0/0x7e0 [ 53.551634][ T3597] sock_sendmsg+0xcf/0x120 [ 53.556260][ T3597] __sys_sendto+0x21c/0x320 [ 53.560766][ T3597] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.566144][ T3597] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 53.572266][ T3597] ? __context_tracking_exit+0xb8/0xe0 [ 53.578102][ T3597] ? lock_downgrade+0x6e0/0x6e0 [ 53.583197][ T3597] ? lock_downgrade+0x6e0/0x6e0 [ 53.588482][ T3597] __x64_sys_sendto+0xdd/0x1b0 [ 53.593269][ T3597] ? lockdep_hardirqs_on+0x79/0x100 [ 53.598461][ T3597] ? syscall_enter_from_user_mode+0x21/0x70 [ 53.604349][ T3597] do_syscall_64+0x35/0xb0 [ 53.608788][ T3597] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.614825][ T3597] RIP: 0033:0x7fd5a19b9e1c [ 53.619344][ T3597] 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 [ 53.640960][ T3597] RSP: 002b:00007fff1afb4430 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.650448][ T3597] RAX: ffffffffffffffda RBX: 00007fd5a2a52320 RCX: 00007fd5a19b9e1c [ 53.658605][ T3597] RDX: 0000000000000048 RSI: 00007fd5a2a52370 RDI: 0000000000000003 [ 53.666944][ T3597] RBP: 0000000000000000 R08: 00007fff1afb4484 R09: 000000000000000c [ 53.675090][ T3597] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.683189][ T3597] R13: 00007fd5a2a52370 R14: 0000000000000003 R15: 0000000000000000 [ 53.691263][ T3597] [ 53.701414][ T3597] device hsr_slave_0 entered promiscuous mode [ 53.709303][ T3597] device hsr_slave_1 entered promiscuous mode [ 53.792576][ T3597] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.803461][ T3597] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.812621][ T3597] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.822329][ T3597] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.843866][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.851349][ T3597] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.859557][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.866726][ T3597] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.912058][ T3597] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.925741][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.936819][ T3607] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.946489][ T3607] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.956186][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.970523][ T3597] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.987004][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.996671][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.006277][ T3607] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.013423][ T3607] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.025769][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.035693][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.046341][ T2925] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.053607][ T2925] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.064539][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.086322][ T3597] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.098301][ T3597] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.111718][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.121200][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 54.130328][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.139708][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.149658][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.159901][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.169067][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.178260][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.187174][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.197106][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.206893][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 54.229501][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.238724][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.253724][ T3597] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.362035][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.372016][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.390284][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.399715][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.410521][ T3597] device veth0_vlan entered promiscuous mode [ 54.419111][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.426901][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.440151][ T3597] device veth1_vlan entered promiscuous mode [ 54.457818][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.466752][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.475700][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.486292][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.497521][ T3597] device veth0_macvtap entered promiscuous mode [ 54.509043][ T3597] device veth1_macvtap entered promiscuous mode [ 54.525318][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.533219][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.542676][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.550966][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.561108][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.574071][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.582097][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.591563][ T2925] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.602690][ T3597] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.612384][ T3597] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.621459][ T3597] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.630907][ T3597] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.693904][ T44] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.712116][ T44] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.723170][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.733945][ T964] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.744344][ T964] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.754785][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/16 22:33:17 building call list... [ 54.860021][ T3610] Bluetooth: hci0: command 0x0409 tx timeout [ 54.997902][ T964] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.139264][ T3586] can: request_module (can-proto-0) failed. [ 57.161812][ T3586] can: request_module (can-proto-0) failed. [ 57.184706][ T3586] can: request_module (can-proto-0) failed. executing program [ 57.741912][ T3597] syz-executor.0 (3597) used greatest stack depth: 22784 bytes left [ 57.788641][ T964] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0