Warning: Permanently added '10.128.0.91' (ECDSA) to the list of known hosts. 2022/02/09 12:58:37 fuzzer started 2022/02/09 12:58:38 connecting to host at 10.128.0.169:35819 2022/02/09 12:58:38 checking machine... 2022/02/09 12:58:38 checking revisions... 2022/02/09 12:58:38 testing simple program... syzkaller login: [ 49.222345][ T3596] cgroup: Unknown subsys name 'net' [ 49.370700][ T3596] cgroup: Unknown subsys name 'rlimit' [ 50.602338][ T3599] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.611090][ T3599] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.619011][ T3599] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.626876][ T3599] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.634463][ T3599] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.641686][ T3599] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.736449][ T3598] chnl_net:caif_netlink_parms(): no params data found [ 50.782264][ T3598] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.790270][ T3598] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.798841][ T3598] device bridge_slave_0 entered promiscuous mode [ 50.809271][ T3598] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.816708][ T3598] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.825163][ T3598] device bridge_slave_1 entered promiscuous mode [ 50.846843][ T3598] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.857749][ T3598] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.881587][ T3598] team0: Port device team_slave_0 added [ 50.888986][ T3598] team0: Port device team_slave_1 added [ 50.906978][ T3598] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.914270][ T3598] 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. [ 50.940745][ T3598] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.953717][ T3598] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.960662][ T3598] 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. [ 50.986678][ T3598] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.011385][ T3598] [ 51.013861][ T3598] ============================= [ 51.018691][ T3598] WARNING: suspicious RCU usage [ 51.023586][ T3598] 5.17.0-rc2-syzkaller-00722-gb4f029f4f433 #0 Not tainted [ 51.030699][ T3598] ----------------------------- [ 51.035600][ T3598] net/hsr/hsr_framereg.c:34 suspicious rcu_dereference_check() usage! [ 51.043867][ T3598] [ 51.043867][ T3598] other info that might help us debug this: [ 51.043867][ T3598] [ 51.054130][ T3598] [ 51.054130][ T3598] rcu_scheduler_active = 2, debug_locks = 1 [ 51.062233][ T3598] 2 locks held by syz-executor.0/3598: [ 51.067744][ T3598] #0: ffffffff8d32c1e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 [ 51.077284][ T3598] #1: ffff8880739795f0 (&hsr->list_lock){+...}-{2:2}, at: hsr_create_self_node+0x225/0x650 [ 51.087604][ T3598] [ 51.087604][ T3598] stack backtrace: [ 51.093525][ T3598] CPU: 0 PID: 3598 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00722-gb4f029f4f433 #0 [ 51.103942][ T3598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.114052][ T3598] Call Trace: [ 51.117329][ T3598] [ 51.120247][ T3598] dump_stack_lvl+0xcd/0x134 [ 51.124830][ T3598] hsr_node_get_first+0x9b/0xb0 [ 51.129787][ T3598] hsr_create_self_node+0x22d/0x650 [ 51.134983][ T3598] hsr_dev_finalize+0x2c1/0x7d0 [ 51.139827][ T3598] hsr_newlink+0x315/0x730 [ 51.144233][ T3598] ? hsr_dellink+0x130/0x130 [ 51.148994][ T3598] ? rtnl_create_link+0x7e8/0xc00 [ 51.154024][ T3598] ? hsr_dellink+0x130/0x130 [ 51.158612][ T3598] __rtnl_newlink+0x107c/0x1760 [ 51.163472][ T3598] ? rtnl_setlink+0x3c0/0x3c0 [ 51.168152][ T3598] ? is_bpf_text_address+0x77/0x170 [ 51.173350][ T3598] ? lock_downgrade+0x6e0/0x6e0 [ 51.178216][ T3598] ? unwind_next_frame+0xee1/0x1ce0 [ 51.183543][ T3598] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.189616][ T3598] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 51.195346][ T3598] ? is_bpf_text_address+0x99/0x170 [ 51.200565][ T3598] ? kernel_text_address+0x39/0x80 [ 51.205682][ T3598] ? __kernel_text_address+0x9/0x30 [ 51.210869][ T3598] ? unwind_get_return_address+0x51/0x90 [ 51.216578][ T3598] ? create_prof_cpu_mask+0x20/0x20 [ 51.221782][ T3598] ? arch_stack_walk+0x93/0xe0 [ 51.226592][ T3598] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.232136][ T3598] rtnl_newlink+0x64/0xa0 [ 51.236466][ T3598] ? __rtnl_newlink+0x1760/0x1760 [ 51.241482][ T3598] rtnetlink_rcv_msg+0x413/0xb80 [ 51.246612][ T3598] ? rtnl_newlink+0xa0/0xa0 [ 51.251109][ T3598] netlink_rcv_skb+0x153/0x420 [ 51.255860][ T3598] ? rtnl_newlink+0xa0/0xa0 [ 51.260361][ T3598] ? netlink_ack+0xa60/0xa60 [ 51.264945][ T3598] ? netlink_deliver_tap+0x1a2/0xc40 [ 51.270227][ T3598] ? netlink_deliver_tap+0x1b1/0xc40 [ 51.275600][ T3598] netlink_unicast+0x539/0x7e0 [ 51.280357][ T3598] ? netlink_attachskb+0x880/0x880 [ 51.285452][ T3598] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.291694][ T3598] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 51.297934][ T3598] ? __phys_addr_symbol+0x2c/0x70 [ 51.303117][ T3598] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 51.308832][ T3598] ? __check_object_size+0x16e/0x310 [ 51.314115][ T3598] netlink_sendmsg+0x904/0xe00 [ 51.318963][ T3598] ? netlink_unicast+0x7e0/0x7e0 [ 51.323987][ T3598] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.330218][ T3598] ? netlink_unicast+0x7e0/0x7e0 [ 51.335148][ T3598] sock_sendmsg+0xcf/0x120 [ 51.339567][ T3598] __sys_sendto+0x21c/0x320 [ 51.344060][ T3598] ? __ia32_sys_getpeername+0xb0/0xb0 [ 51.349429][ T3598] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 51.355418][ T3598] ? __context_tracking_exit+0xb8/0xe0 [ 51.360882][ T3598] ? lock_downgrade+0x6e0/0x6e0 [ 51.365732][ T3598] ? lock_downgrade+0x6e0/0x6e0 [ 51.370589][ T3598] __x64_sys_sendto+0xdd/0x1b0 [ 51.375352][ T3598] ? lockdep_hardirqs_on+0x79/0x100 [ 51.381340][ T3598] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.387229][ T3598] do_syscall_64+0x35/0xb0 [ 51.391731][ T3598] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.397712][ T3598] RIP: 0033:0x7ffb3d213e1c [ 51.402134][ T3598] 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 [ 51.421849][ T3598] RSP: 002b:00007ffe49dbfdc0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 51.430253][ T3598] RAX: ffffffffffffffda RBX: 00007ffb3e2ac320 RCX: 00007ffb3d213e1c [ 51.438207][ T3598] RDX: 0000000000000048 RSI: 00007ffb3e2ac370 RDI: 0000000000000003 [ 51.446159][ T3598] RBP: 0000000000000000 R08: 00007ffe49dbfe14 R09: 000000000000000c [ 51.454121][ T3598] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 51.462085][ T3598] R13: 00007ffb3e2ac370 R14: 0000000000000003 R15: 0000000000000000 [ 51.470048][ T3598] [ 51.479422][ T3598] device hsr_slave_0 entered promiscuous mode [ 51.486949][ T3598] device hsr_slave_1 entered promiscuous mode [ 51.567182][ T3598] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.577753][ T3598] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.586505][ T3598] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.595219][ T3598] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.615914][ T3598] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.623267][ T3598] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.631021][ T3598] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.638131][ T3598] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.698885][ T3598] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.711097][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.721964][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.731909][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.740212][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.754829][ T3598] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.765372][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.774323][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.784121][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.791201][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.820244][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.829006][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.837888][ T6] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.845008][ T6] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.852748][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.861696][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.871277][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.880187][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.889259][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.898236][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.907058][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.915564][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.929075][ T3598] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.940551][ T3598] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.949179][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.958573][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready executing program [ 51.967194][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.989833][ T3598] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.997171][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.005040][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.115507][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.125244][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.142941][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.151722][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.161223][ T3598] device veth0_vlan entered promiscuous mode [ 52.168891][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.177173][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.190257][ T3598] device veth1_vlan entered promiscuous mode [ 52.209413][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.217795][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.226020][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.235379][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.251701][ T3598] device veth0_macvtap entered promiscuous mode [ 52.260880][ T3598] device veth1_macvtap entered promiscuous mode [ 52.276422][ T3598] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.284640][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.294164][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.302218][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.311450][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.324640][ T3598] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.333476][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.342179][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.353890][ T3598] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.362923][ T3598] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.371749][ T3598] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.380943][ T3598] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.442211][ T1044] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.458604][ T1044] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.469828][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.470025][ T44] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.485960][ T44] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.495494][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/02/09 12:58:41 building call list... [ 52.736768][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.836557][ T3590] can: request_module (can-proto-0) failed. [ 54.859865][ T3590] can: request_module (can-proto-0) failed. [ 54.880923][ T3590] can: request_module (can-proto-0) failed. executing program [ 55.314695][ T3598] syz-executor.0 (3598) used greatest stack depth: 22856 bytes left [ 55.550901][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0