[info] Using makefile-style concurrent boot in runlevel 2. [ 24.157117] audit: type=1800 audit(1539739462.607:21): pid=5399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.187242] audit: type=1800 audit(1539739462.607:22): pid=5399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. syzkaller login: [ 33.576352] IPVS: ftp: loaded support on port[0] = 21 [ 33.734272] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.741083] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.748307] device bridge_slave_0 entered promiscuous mode [ 33.765946] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.772315] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.779355] device bridge_slave_1 entered promiscuous mode [ 33.796244] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 33.813617] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 33.862065] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 33.881300] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 33.952880] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 33.960398] team0: Port device team_slave_0 added [ 33.976465] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 33.983553] team0: Port device team_slave_1 added [ 34.000114] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 34.020027] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 34.038875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 34.057964] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 34.197621] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.204060] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.210994] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.217361] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 34.725249] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.776581] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 34.825912] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 34.832048] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 34.840467] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.888125] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 35.195580] BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:425/tfrc_rx_hist_sample_rtt() [ 35.208884] CPU: 1 PID: 5796 Comm: syz-executor720 Not tainted 4.19.0-rc8-next-20181016+ #95 [ 35.217443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.226779] Call Trace: [ 35.229339] [ 35.231475] dump_stack+0x244/0x39d [ 35.235098] ? dump_stack_print_info.cold.1+0x20/0x20 [ 35.240287] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.245810] ? tfrc_rx_handle_loss+0x67b/0x1eb0 [ 35.250469] tfrc_rx_hist_sample_rtt.cold.3+0x54/0x5c [ 35.255649] ccid3_hc_rx_packet_recv+0x5c4/0xeb0 [ 35.260385] ? dccp_parse_options+0x4a1/0x12f0 [ 35.264964] ? ccid3_first_li+0x400/0x400 [ 35.269112] dccp_deliver_input_to_ccids+0xf0/0x280 [ 35.274114] dccp_rcv_established+0x87/0xb0 [ 35.278428] dccp_v4_do_rcv+0x153/0x180 [ 35.282388] __sk_receive_skb+0x3e0/0xeb0 [ 35.286527] ? sk_free+0x50/0x50 [ 35.289887] ? inet_lhash2_lookup+0x6e0/0x6e0 [ 35.294365] ? reqsk_fastopen_remove+0x660/0x660 [ 35.299104] ? lock_downgrade+0x900/0x900 [ 35.303234] ? check_preemption_disabled+0x48/0x280 [ 35.308238] ? dccp_invalid_packet+0x64/0x880 [ 35.312722] dccp_v4_rcv+0x10f9/0x1f58 [ 35.316605] ? dccp_v4_err+0x18a0/0x18a0 [ 35.320656] ? __lock_is_held+0xb5/0x140 [ 35.324712] ip_local_deliver_finish+0x2e9/0xda0 [ 35.329458] ? ip_sublist_rcv_finish+0x3a0/0x3a0 [ 35.334203] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.339213] ? nf_hook_slow+0x11e/0x1c0 [ 35.343199] ip_local_deliver+0x1e4/0x740 [ 35.347333] ? ip_call_ra_chain+0x730/0x730 [ 35.351639] ? ip_sublist_rcv_finish+0x3a0/0x3a0 [ 35.356386] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 35.361297] ? kasan_check_read+0x11/0x20 [ 35.365439] ? rcu_softirq_qs+0x20/0x20 [ 35.369402] ip_rcv_finish+0x1f9/0x300 [ 35.373281] ip_rcv+0xe8/0x600 [ 35.376467] ? print_usage_bug+0xc0/0xc0 [ 35.380532] ? ip_local_deliver+0x740/0x740 [ 35.384862] ? ip_rcv_finish_core.isra.16+0x1f40/0x1f40 [ 35.390238] ? lock_acquire+0x1ed/0x520 [ 35.394220] ? process_backlog+0x1dd/0x7a0 [ 35.398465] __netif_receive_skb_one_core+0x14d/0x200 [ 35.403664] ? __netif_receive_skb_core+0x3b20/0x3b20 [ 35.408859] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 35.414139] ? rcu_softirq_qs+0x20/0x20 [ 35.418116] ? trace_hardirqs_off_caller+0x300/0x300 [ 35.423231] __netif_receive_skb+0x27/0x1e0 [ 35.427556] process_backlog+0x24e/0x7a0 [ 35.431888] net_rx_action+0x7fa/0x19b0 [ 35.435881] ? napi_complete_done+0x7a0/0x7a0 [ 35.440382] ? zap_class+0x640/0x640 [ 35.444092] ? resched_curr+0xdd/0x1f0 [ 35.447985] ? zap_class+0x640/0x640 [ 35.451695] ? zap_class+0x640/0x640 [ 35.455412] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.460961] ? check_preemption_disabled+0x48/0x280 [ 35.465986] ? find_held_lock+0x36/0x1c0 [ 35.470062] ? try_to_wake_up+0x10a/0x12e0 [ 35.474300] ? lock_downgrade+0x900/0x900 [ 35.478482] ? lock_downgrade+0x900/0x900 [ 35.482638] ? trace_hardirqs_off+0xb8/0x310 [ 35.487068] ? kasan_check_read+0x11/0x20 [ 35.491223] ? do_raw_spin_unlock+0xa7/0x330 [ 35.495721] ? trace_hardirqs_on+0x310/0x310 [ 35.500131] ? do_raw_spin_trylock+0x270/0x270 [ 35.504717] ? lock_pin_lock+0x350/0x350 [ 35.508790] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 35.513896] ? print_usage_bug+0xc0/0xc0 [ 35.517957] ? try_to_wake_up+0x10a/0x12e0 [ 35.522209] ? migrate_swap_stop+0x8a0/0x8a0 [ 35.526627] ? zap_class+0x640/0x640 [ 35.530350] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.535889] ? check_preemption_disabled+0x48/0x280 [ 35.540914] ? __lock_is_held+0xb5/0x140 [ 35.544992] __do_softirq+0x308/0xb7e [ 35.548800] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.554346] ? __irqentry_text_end+0x1f9688/0x1f9688 [ 35.559461] ? smp_reschedule_interrupt+0x109/0x650 [ 35.564984] ? smp_thermal_interrupt+0x850/0x850 [ 35.569741] ? ret_from_intr+0xb/0x1e [ 35.573543] ? trace_hardirqs_off_caller+0xbb/0x300 [ 35.578567] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.583413] ? trace_hardirqs_on_caller+0x310/0x310 [ 35.588449] ? task_prio+0x50/0x50 [ 35.591993] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.597537] ? check_preemption_disabled+0x48/0x280 [ 35.602560] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.607409] ? ip_finish_output2+0xa83/0x1860 [ 35.611920] do_softirq_own_stack+0x2a/0x40 [ 35.616234] [ 35.618478] do_softirq.part.14+0x126/0x160 [ 35.622801] __local_bh_enable_ip+0x21d/0x260 [ 35.627304] ip_finish_output2+0xab6/0x1860 [ 35.631634] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 35.636573] ? ip_copy_metadata+0xe10/0xe10 [ 35.640901] ? zap_class+0x640/0x640 [ 35.644620] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.650159] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.655699] ? ipv4_mtu+0x39f/0x590 [ 35.659337] ? __lock_is_held+0xb5/0x140 [ 35.663412] ip_finish_output+0x7f8/0xfa0 [ 35.667576] ? ip_finish_output+0x7f8/0xfa0 [ 35.671909] ? ip_fragment.constprop.50+0x240/0x240 [ 35.676926] ? kasan_check_read+0x11/0x20 [ 35.681077] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 35.686354] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.691896] ? rcu_softirq_qs+0x20/0x20 [ 35.695877] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.700894] ? nf_hook_slow+0x11e/0x1c0 [ 35.704877] ip_output+0x21d/0x8d0 [ 35.708433] ? ip_mc_output+0x15a0/0x15a0 [ 35.712591] ? ip_fragment.constprop.50+0x240/0x240 [ 35.717610] ? __lock_is_held+0xb5/0x140 [ 35.721683] ip_local_out+0xc5/0x1b0 [ 35.725405] __ip_queue_xmit+0x9af/0x1f30 [ 35.729574] ? ip_build_and_send_pkt+0xc90/0xc90 [ 35.734333] ? __skb_checksum+0x920/0x920 [ 35.738486] ? skb_send_sock+0x50/0x50 [ 35.742375] ? reqsk_fastopen_remove+0x660/0x660 [ 35.747132] ? dccp_insert_option_padding+0xbc/0xe0 [ 35.752162] ip_queue_xmit+0x56/0x70 [ 35.755885] dccp_transmit_skb+0x98c/0x12e0 [ 35.760223] dccp_xmit_packet+0x25e/0x7d0 [ 35.764371] ? _copy_from_iter_full+0x2b8/0xc20 [ 35.769048] ? dccp_send_sync+0x270/0x270 [ 35.773205] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 35.778230] ? ccid3_hc_tx_send_packet+0x358/0x876 [ 35.783167] dccp_write_xmit+0x190/0x1f0 [ 35.787237] dccp_sendmsg+0x9cc/0x1020 [ 35.791135] ? dccp_setsockopt_cscov.part.9+0x290/0x290 [ 35.796509] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.802047] ? aa_label_sk_perm+0x91/0x100 [ 35.806287] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 35.811216] ? aa_sk_perm+0x22b/0x8e0 [ 35.815035] ? __might_fault+0x12b/0x1e0 [ 35.819101] ? aa_af_perm+0x5a0/0x5a0 [ 35.822902] ? lock_release+0xa10/0xa10 [ 35.826880] ? perf_trace_sched_process_exec+0x860/0x860 [ 35.832340] inet_sendmsg+0x19c/0x690 [ 35.836148] ? ipip_gro_receive+0x100/0x100 [ 35.840475] ? apparmor_socket_sendmsg+0x29/0x30 [ 35.845232] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.850768] ? security_socket_sendmsg+0x94/0xc0 [ 35.855524] ? ipip_gro_receive+0x100/0x100 [ 35.859848] sock_sendmsg+0xd5/0x120 [ 35.863563] ___sys_sendmsg+0x51d/0x930 [ 35.867546] ? copy_msghdr_from_user+0x580/0x580 [ 35.872312] ? find_held_lock+0x36/0x1c0 [ 35.876380] ? __fget_light+0x2e9/0x430 [ 35.880356] ? fget_raw+0x20/0x20 [ 35.883812] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 35.888396] ? trace_hardirqs_on+0xbd/0x310 [ 35.892733] ? _raw_spin_unlock_bh+0x30/0x40 [ 35.897147] ? trace_hardirqs_off_caller+0x300/0x300 [ 35.902254] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.907790] ? check_preemption_disabled+0x48/0x280 [ 35.912819] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.918358] ? sockfd_lookup_light+0xc5/0x160 [ 35.922858] __sys_sendmmsg+0x246/0x6d0 [ 35.926847] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 35.931171] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 35.936713] ? fput+0x130/0x1a0 [ 35.939995] ? __sys_connect+0x1d1/0x4c0 [ 35.944062] ? __ia32_sys_accept+0xb0/0xb0 [ 35.948318] ? __x64_sys_futex+0x47f/0x6a0 [ 35.952557] ? do_syscall_64+0x9a/0x820 [ 35.956535] ? do_syscall_64+0x9a/0x820 [ 35.960510] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 35.965094] ? trace_hardirqs_on+0xbd/0x310 [ 35.969417] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.974794] ? trace_hardirqs_off_caller+0x300/0x300 [ 35.979905] __x64_sys_sendmmsg+0x9d/0x100 [ 35.984145] do_syscall_64+0x1b9/0x820 [ 35.988034] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.993399] ? syscall_return_slowpath+0x5e0/0x5e0 [ 35.998341] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.003363] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 36.008383] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 36.015051] ? __switch_to_asm+0x40/0x70 [ 36.019109] ? __switch_to_asm+0x34/0x70 [ 36.023178] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.028032] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.033227] RIP: 0033:0x446cb9 [ 36.036429] Code: e8 cc b8 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 36.055329] RSP: 002b:00007f65b231bda8 EFLAGS: 00000297 ORIG_RAX: 0000000000000133 [ 36.063034] RAX: ffffffffffffffda RBX: 00000000006dcc68 RCX: 0000000000446cb9 [ 36.070301] RDX: 0000000000000003 RSI: 00000000200037c0 RDI: 0000000000000005 [ 36.077573] RBP: 00000000006dcc60 R08: 0000000000000000 R09: 0000000000000000 [ 36.084839] R10: 0000000000000080 R11: 0000000000000297 R12: 00000000006dcc6c [ 36.092109] R13: cdef9a1cfd2198c8 R14: d5f212e95c33dd08 R15: 0000000000000005