[info] Using makefile-style concurrent boot in runlevel 2. [ 23.865135] audit: type=1800 audit(1539738516.050:21): pid=5174 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.893104] audit: type=1800 audit(1539738516.060:22): pid=5174 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 '10.128.10.37' (ECDSA) to the list of known hosts. syzkaller login: [ 36.069378] IPVS: ftp: loaded support on port[0] = 21 [ 36.229788] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.236710] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.244156] device bridge_slave_0 entered promiscuous mode [ 36.262242] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.268725] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.275569] device bridge_slave_1 entered promiscuous mode [ 36.292696] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 36.309922] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 36.359157] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 36.378639] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 36.452234] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 36.459742] team0: Port device team_slave_0 added [ 36.475898] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 36.484236] team0: Port device team_slave_1 added [ 36.501821] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 36.524050] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 36.542493] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 36.561757] 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 [ 36.702625] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.709110] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.715910] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.722329] 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 [ 37.251255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.305795] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 37.358412] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 37.364579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 37.373561] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.420964] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 37.743547] 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() [ 37.756914] CPU: 0 PID: 5573 Comm: syz-executor931 Not tainted 4.19.0-rc7+ #143 [ 37.764350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.773691] Call Trace: [ 37.776259] [ 37.778406] dump_stack+0x1c4/0x2b4 [ 37.782025] ? dump_stack_print_info.cold.2+0x52/0x52 [ 37.787206] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.792732] ? tfrc_rx_handle_loss+0x67b/0x1eb0 [ 37.797395] tfrc_rx_hist_sample_rtt.cold.3+0x54/0x5c [ 37.802575] ccid3_hc_rx_packet_recv+0x5c4/0xeb0 [ 37.807340] ? dccp_parse_options+0x4a1/0x12f0 [ 37.811914] ? ccid3_hc_tx_send_packet+0x880/0x880 [ 37.816862] dccp_deliver_input_to_ccids+0xf0/0x280 [ 37.821864] dccp_rcv_established+0x87/0xb0 [ 37.826173] dccp_v4_do_rcv+0x153/0x180 [ 37.830136] __sk_receive_skb+0x3e5/0xec0 [ 37.834271] ? sk_free+0x50/0x50 [ 37.837630] ? inet_lhash2_lookup+0x6e0/0x6e0 [ 37.842109] ? reqsk_fastopen_remove+0x660/0x660 [ 37.846871] ? lock_downgrade+0x900/0x900 [ 37.851041] ? check_preemption_disabled+0x48/0x200 [ 37.856047] ? dccp_invalid_packet+0x64/0x880 [ 37.860533] dccp_v4_rcv+0x10f9/0x1f58 [ 37.864427] ? dccp_v4_err+0x18a0/0x18a0 [ 37.868491] ? __lock_is_held+0xb5/0x140 [ 37.872551] ip_local_deliver_finish+0x2e9/0xda0 [ 37.877300] ? ip_sublist_rcv_finish+0x3f0/0x3f0 [ 37.882061] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.887081] ? nf_hook_slow+0x11e/0x1c0 [ 37.891057] ip_local_deliver+0x1e9/0x750 [ 37.895197] ? ip_call_ra_chain+0x730/0x730 [ 37.899508] ? ip_sublist_rcv_finish+0x3f0/0x3f0 [ 37.904266] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.910049] ? kasan_check_read+0x11/0x20 [ 37.914187] ? rcu_bh_qs+0xc0/0xc0 [ 37.917735] ip_rcv_finish+0x1f9/0x300 [ 37.921610] ip_rcv+0xed/0x600 [ 37.924793] ? ip_local_deliver+0x750/0x750 [ 37.929108] ? ip_rcv_finish_core.isra.15+0x1f40/0x1f40 [ 37.934484] ? lock_acquire+0x1ed/0x520 [ 37.938480] ? process_backlog+0x1a7/0x6f0 [ 37.942705] __netif_receive_skb_one_core+0x14d/0x200 [ 37.947885] ? __netif_receive_skb_core+0x3b60/0x3b60 [ 37.953061] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.958328] ? rcu_bh_qs+0xc0/0xc0 [ 37.961857] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 37.967302] __netif_receive_skb+0x2c/0x1e0 [ 37.971615] process_backlog+0x218/0x6f0 [ 37.975683] net_rx_action+0x7c5/0x1950 [ 37.979654] ? napi_complete_done+0x6d0/0x6d0 [ 37.984173] ? kasan_check_write+0x14/0x20 [ 37.988418] ? __run_timers+0xa4a/0xc70 [ 37.992385] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 37.997740] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 38.002745] ? graph_lock+0x170/0x170 [ 38.006549] ? enqueue_hrtimer+0x1a5/0x560 [ 38.010785] ? lock_release+0x970/0x970 [ 38.014748] ? find_held_lock+0x36/0x1c0 [ 38.018800] ? pvclock_read_flags+0x160/0x160 [ 38.023285] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.028814] ? check_preemption_disabled+0x48/0x200 [ 38.033819] ? check_preemption_disabled+0x48/0x200 [ 38.038847] ? print_usage_bug+0xc0/0xc0 [ 38.042952] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.048493] ? check_preemption_disabled+0x48/0x200 [ 38.053498] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.059027] ? __local_bh_enable+0xef/0x130 [ 38.063367] ? graph_lock+0x170/0x170 [ 38.067169] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.072698] ? check_preemption_disabled+0x48/0x200 [ 38.077704] ? check_preemption_disabled+0x48/0x200 [ 38.082711] ? __lock_is_held+0xb5/0x140 [ 38.086769] __do_softirq+0x30b/0xad8 [ 38.090578] ? __irqentry_text_end+0x1f9618/0x1f9618 [ 38.095668] ? smp_reschedule_interrupt+0x109/0x650 [ 38.100671] ? smp_thermal_interrupt+0x850/0x850 [ 38.105417] ? ret_from_intr+0xb/0x1e [ 38.109208] ? trace_hardirqs_off_caller+0xbb/0x310 [ 38.114225] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.119055] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.124060] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.129617] ? check_preemption_disabled+0x48/0x200 [ 38.134649] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.140182] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.145027] ? ip_finish_output2+0xa83/0x1860 [ 38.149513] do_softirq_own_stack+0x2a/0x40 [ 38.153816] [ 38.156047] do_softirq.part.13+0x126/0x160 [ 38.160360] __local_bh_enable_ip+0x21d/0x260 [ 38.164846] ip_finish_output2+0xab6/0x1860 [ 38.169157] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 38.174957] ? ip_copy_metadata+0xe10/0xe10 [ 38.179276] ? graph_lock+0x170/0x170 [ 38.183069] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.188606] ? check_preemption_disabled+0x48/0x200 [ 38.193617] ? check_preemption_disabled+0x48/0x200 [ 38.198637] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.204164] ? ipv4_mtu+0x37d/0x590 [ 38.207782] ? __lock_is_held+0xb5/0x140 [ 38.211835] ip_finish_output+0x7fd/0xf60 [ 38.215973] ? ip_finish_output+0x7fd/0xf60 [ 38.220305] ? ip_fragment.constprop.49+0x240/0x240 [ 38.225306] ? kasan_check_read+0x11/0x20 [ 38.229446] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 38.234721] ? rcu_bh_qs+0xc0/0xc0 [ 38.238282] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.243284] ? nf_hook_slow+0x11e/0x1c0 [ 38.247253] ip_output+0x21d/0x8d0 [ 38.250779] ? ip_mc_output+0x15b0/0x15b0 [ 38.254943] ? ip_fragment.constprop.49+0x240/0x240 [ 38.259983] ? __lock_is_held+0xb5/0x140 [ 38.264055] ip_local_out+0xc5/0x1b0 [ 38.267759] __ip_queue_xmit+0x9af/0x1f30 [ 38.271901] ? ip_build_and_send_pkt+0xc80/0xc80 [ 38.276648] ? __skb_checksum+0x920/0x920 [ 38.280780] ? skb_send_sock+0x50/0x50 [ 38.284669] ? reqsk_fastopen_remove+0x660/0x660 [ 38.289412] ? dccp_insert_option_padding+0xbc/0xe0 [ 38.294419] ip_queue_xmit+0x56/0x70 [ 38.298122] dccp_transmit_skb+0x98c/0x12e0 [ 38.302472] dccp_xmit_packet+0x25e/0x7d0 [ 38.306608] ? kasan_check_write+0x14/0x20 [ 38.310830] ? do_raw_spin_lock+0xc1/0x200 [ 38.315067] ? dccp_send_sync+0x270/0x270 [ 38.319235] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.324256] ? ccid3_hc_tx_send_packet+0x358/0x880 [ 38.329189] dccp_write_xmit+0x190/0x1f0 [ 38.333237] dccp_sendmsg+0xdc8/0x1020 [ 38.337114] ? dccp_getsockopt+0xf0/0xf0 [ 38.341167] ? find_held_lock+0x36/0x1c0 [ 38.345213] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 38.350130] ? aa_sk_perm+0x218/0x8b0 [ 38.353918] ? __might_fault+0x12b/0x1e0 [ 38.357966] ? aa_af_perm+0x5a0/0x5a0 [ 38.361758] ? lock_release+0x970/0x970 [ 38.365718] ? arch_local_save_flags+0x40/0x40 [ 38.370293] inet_sendmsg+0x1a1/0x690 [ 38.374082] ? ipip_gro_receive+0x100/0x100 [ 38.378392] ? apparmor_socket_sendmsg+0x29/0x30 [ 38.383134] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.388675] ? security_socket_sendmsg+0x94/0xc0 [ 38.393420] ? ipip_gro_receive+0x100/0x100 [ 38.397729] sock_sendmsg+0xd5/0x120 [ 38.401440] ___sys_sendmsg+0x51d/0x930 [ 38.405414] ? copy_msghdr_from_user+0x580/0x580 [ 38.410164] ? __fget_light+0x2e9/0x430 [ 38.414122] ? fget_raw+0x20/0x20 [ 38.417569] ? lockdep_hardirqs_on+0x421/0x5c0 [ 38.422138] ? trace_hardirqs_on+0xbd/0x310 [ 38.426448] ? _raw_spin_unlock_bh+0x30/0x40 [ 38.430858] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 38.436296] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.441831] ? check_preemption_disabled+0x48/0x200 [ 38.446846] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.452367] ? sockfd_lookup_light+0xc5/0x160 [ 38.456851] __sys_sendmmsg+0x246/0x6d0 [ 38.460814] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 38.465123] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 38.470645] ? fput+0x130/0x1a0 [ 38.473910] ? __sys_connect+0x1d1/0x4c0 [ 38.477956] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.483490] ? __ia32_sys_accept+0xb0/0xb0 [ 38.487724] ? __x64_sys_futex+0x47f/0x6a0 [ 38.491942] ? do_syscall_64+0x9a/0x820 [ 38.495918] ? do_syscall_64+0x9a/0x820 [ 38.499897] ? lockdep_hardirqs_on+0x421/0x5c0 [ 38.504496] ? trace_hardirqs_on+0xbd/0x310 [ 38.508812] ? find_held_lock+0x36/0x1c0 [ 38.512860] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.518212] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 38.523662] __x64_sys_sendmmsg+0x9d/0x100 [ 38.527887] do_syscall_64+0x1b9/0x820 [ 38.531763] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.537114] ? syscall_return_slowpath+0x5e0/0x5e0 [ 38.542066] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.547084] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.552088] ? recalc_sigpending_tsk+0x180/0x180 [ 38.556846] ? kasan_check_write+0x14/0x20 [ 38.561088] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.565951] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.571129] RIP: 0033:0x446cb9 [ 38.574318] 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 [ 38.593214] RSP: 002b:00007f8ac71c0da8 EFLAGS: 00000297 ORIG_RAX: 0000000000000133 [ 38.600943] RAX: ffffffffffffffda RBX: 00000000006dcc68 RCX: 0000000000446cb9 [ 38.608215] RDX: 0000000000000003 RSI: 00000000200037c0 RDI: 0000000000000005 [ 38.615975] RBP: 00000000006dcc60 R08: 0000000000000000 R09: 0000000000000000 [ 38.623235] R10: 0000000000000080 R11: 0000000000000297 R12: 00000000006dcc6c [ 38.630505] R13: cdef9a1cfd2198c8 R14: d5f212e95c33dd08 R15: 0000000000000005