DUID 00:04:99:cf:64:81:91:3a:f8:b3:88:a8:0e:05:2a:78:8a:13 forked to background, child pid 3172 [ 28.865110][ T3173] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.880330][ T3173] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.93' (ECDSA) to the list of known hosts. 2022/02/15 11:13:23 fuzzer started 2022/02/15 11:13:23 connecting to host at 10.128.0.169:45465 2022/02/15 11:13:23 checking machine... 2022/02/15 11:13:23 checking revisions... 2022/02/15 11:13:23 testing simple program... syzkaller login: [ 49.143744][ T3593] cgroup: Unknown subsys name 'net' [ 49.254104][ T3593] cgroup: Unknown subsys name 'rlimit' [ 50.507406][ T3596] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.515315][ T3596] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.523131][ T3596] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.531059][ T3596] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.539153][ T3596] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.546686][ T3596] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.631086][ T3595] chnl_net:caif_netlink_parms(): no params data found [ 50.672109][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.679806][ T3595] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.688532][ T3595] device bridge_slave_0 entered promiscuous mode [ 50.697449][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.704545][ T3595] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.712461][ T3595] device bridge_slave_1 entered promiscuous mode [ 50.733405][ T3595] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.744266][ T3595] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.765617][ T3595] team0: Port device team_slave_0 added [ 50.772894][ T3595] team0: Port device team_slave_1 added [ 50.790143][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.797342][ 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. [ 50.823694][ T3595] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.837971][ T3595] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.845004][ 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. [ 50.871000][ T3595] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.895398][ T3595] [ 50.897848][ T3595] ============================= [ 50.902800][ T3595] WARNING: suspicious RCU usage [ 50.907861][ T3595] 5.17.0-rc4-next-20220215-syzkaller #0 Not tainted [ 50.914449][ T3595] ----------------------------- [ 50.919331][ T3595] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 50.927526][ T3595] [ 50.927526][ T3595] other info that might help us debug this: [ 50.927526][ T3595] [ 50.937801][ T3595] [ 50.937801][ T3595] rcu_scheduler_active = 2, debug_locks = 1 [ 50.945867][ T3595] 2 locks held by syz-executor.0/3595: [ 50.951384][ T3595] #0: ffffffff8d336c68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 50.960869][ T3595] #1: ffff88814bf2d5f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 50.971067][ T3595] [ 50.971067][ T3595] stack backtrace: [ 50.976998][ T3595] CPU: 0 PID: 3595 Comm: syz-executor.0 Not tainted 5.17.0-rc4-next-20220215-syzkaller #0 [ 50.986875][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.996926][ T3595] Call Trace: [ 51.000207][ T3595] [ 51.003125][ T3595] dump_stack_lvl+0xcd/0x134 [ 51.007717][ T3595] hsr_node_get_first+0x9b/0xb0 [ 51.012589][ T3595] hsr_create_self_node+0x22d/0x650 [ 51.017780][ T3595] hsr_dev_finalize+0x2c1/0x7d0 [ 51.022627][ T3595] hsr_newlink+0x315/0x730 [ 51.027042][ T3595] ? hsr_dellink+0x130/0x130 [ 51.031673][ T3595] ? rtnl_create_link+0x7e8/0xc00 [ 51.036689][ T3595] ? hsr_dellink+0x130/0x130 [ 51.041371][ T3595] __rtnl_newlink+0x107c/0x1760 [ 51.046217][ T3595] ? rtnl_setlink+0x3c0/0x3c0 [ 51.050888][ T3595] ? is_bpf_text_address+0x77/0x170 [ 51.056080][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 51.060933][ T3595] ? unwind_next_frame+0xee1/0x1ce0 [ 51.066126][ T3595] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.072187][ T3595] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 51.077909][ T3595] ? is_bpf_text_address+0x99/0x170 [ 51.083122][ T3595] ? kernel_text_address+0x39/0x80 [ 51.088243][ T3595] ? __kernel_text_address+0x9/0x30 [ 51.093451][ T3595] ? unwind_get_return_address+0x51/0x90 [ 51.099089][ T3595] ? create_prof_cpu_mask+0x20/0x20 [ 51.104302][ T3595] ? arch_stack_walk+0x93/0xe0 [ 51.109160][ T3595] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.114720][ T3595] rtnl_newlink+0x64/0xa0 [ 51.119054][ T3595] ? __rtnl_newlink+0x1760/0x1760 [ 51.124086][ T3595] rtnetlink_rcv_msg+0x413/0xb80 [ 51.129038][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.133856][ T3595] netlink_rcv_skb+0x153/0x420 [ 51.138626][ T3595] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 51.143400][ T3595] ? netlink_ack+0xa80/0xa80 [ 51.147991][ T3595] ? netlink_deliver_tap+0x1a2/0xc40 [ 51.153289][ T3595] ? netlink_deliver_tap+0x1b1/0xc40 [ 51.158587][ T3595] netlink_unicast+0x539/0x7e0 [ 51.163364][ T3595] ? netlink_attachskb+0x880/0x880 [ 51.168477][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.174736][ T3595] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.180989][ T3595] ? __phys_addr_symbol+0x2c/0x70 [ 51.186025][ T3595] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 51.191760][ T3595] ? __check_object_size+0x16c/0x4f0 [ 51.197052][ T3595] netlink_sendmsg+0x904/0xe00 [ 51.201838][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 51.206788][ T3595] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.213047][ T3595] ? netlink_unicast+0x7e0/0x7e0 [ 51.217994][ T3595] sock_sendmsg+0xcf/0x120 [ 51.222419][ T3595] __sys_sendto+0x21c/0x320 [ 51.226931][ T3595] ? __ia32_sys_getpeername+0xb0/0xb0 [ 51.232485][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 51.237707][ T3595] ? __context_tracking_exit+0xb8/0xe0 [ 51.243182][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 51.248073][ T3595] __x64_sys_sendto+0xdd/0x1b0 [ 51.252851][ T3595] ? lockdep_hardirqs_on+0x79/0x100 [ 51.258055][ T3595] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.263958][ T3595] do_syscall_64+0x35/0xb0 [ 51.268373][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.274276][ T3595] RIP: 0033:0x7ff37cb21e1c [ 51.278687][ 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 [ 51.298296][ T3595] RSP: 002b:00007fff8647dc10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 51.306711][ T3595] RAX: ffffffffffffffda RBX: 00007ff37dbba320 RCX: 00007ff37cb21e1c [ 51.314676][ T3595] RDX: 0000000000000048 RSI: 00007ff37dbba370 RDI: 0000000000000003 [ 51.322641][ T3595] RBP: 0000000000000000 R08: 00007fff8647dc64 R09: 000000000000000c [ 51.330607][ T3595] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 51.338585][ T3595] R13: 00007ff37dbba370 R14: 0000000000000003 R15: 0000000000000000 [ 51.346569][ T3595] [ 51.353780][ T3595] device hsr_slave_0 entered promiscuous mode [ 51.361065][ T3595] device hsr_slave_1 entered promiscuous mode [ 51.442617][ T3595] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.453187][ T3595] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.462099][ T3595] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.472393][ T3595] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.493506][ T3595] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.500708][ T3595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.508674][ T3595] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.515744][ T3595] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.562238][ T3595] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.573792][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.585063][ T2977] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.594116][ T2977] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.602905][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.616421][ T3595] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.628574][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.637144][ T1775] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.644341][ T1775] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.668229][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.677116][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.685532][ T1775] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.692652][ T1775] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.701527][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.710577][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.719917][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.728999][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.737466][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.746140][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.754958][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.763344][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.771715][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.780031][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.790150][ T3595] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.801860][ T1775] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.819799][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.827319][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.836256][ T3595] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 51.947600][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.956359][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.972542][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.982361][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.991672][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.000279][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.010115][ T3595] device veth0_vlan entered promiscuous mode [ 52.022114][ T3595] device veth1_vlan entered promiscuous mode [ 52.039547][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.048335][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.056388][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.065172][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.075721][ T3595] device veth0_macvtap entered promiscuous mode [ 52.086764][ T3595] device veth1_macvtap entered promiscuous mode [ 52.101756][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.109943][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.118784][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.126785][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.135983][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.147935][ T3595] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.157413][ T3595] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.166276][ T3595] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.175416][ T3595] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.185290][ T3595] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.196102][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.204782][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.262998][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.279498][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.289381][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.300270][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.308299][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.316938][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/15 11:13:26 building call list... [ 52.604797][ T988] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.746277][ T3584] can: request_module (can-proto-0) failed. [ 54.769593][ T3584] can: request_module (can-proto-0) failed. [ 54.790223][ T3584] can: request_module (can-proto-0) failed. executing program [ 54.917821][ T988] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.118823][ T3595] syz-executor.0 (3595) used greatest stack depth: 22560 bytes left