[info] Using makefile-style concurrent boot in runlevel 2. [ 25.162732] audit: type=1800 audit(1539747401.457:21): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.190630] audit: type=1800 audit(1539747401.467:22): pid=5181 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 '10.128.0.62' (ECDSA) to the list of known hosts. syzkaller login: [ 39.857105] IPVS: ftp: loaded support on port[0] = 21 [ 40.012220] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.018970] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.026337] device bridge_slave_0 entered promiscuous mode [ 40.044088] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.050513] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.057573] device bridge_slave_1 entered promiscuous mode [ 40.074766] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 40.092383] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 40.137848] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.157018] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.227937] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.235166] team0: Port device team_slave_0 added [ 40.250695] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.257951] team0: Port device team_slave_1 added [ 40.273690] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.291822] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.310733] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.329714] 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 [ 40.469665] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.476158] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.482934] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.489325] 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 [ 40.979669] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.028631] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 41.077584] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 41.083717] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.091274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.134992] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 41.437937] 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() [ 41.451292] CPU: 0 PID: 5579 Comm: syz-executor922 Not tainted 4.19.0-rc7+ #264 [ 41.458723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.468052] Call Trace: [ 41.470622] [ 41.472756] dump_stack+0x1c4/0x2b4 [ 41.476366] ? dump_stack_print_info.cold.2+0x52/0x52 [ 41.481587] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 41.487119] ? tfrc_rx_handle_loss+0x67b/0x1eb0 [ 41.491774] tfrc_rx_hist_sample_rtt.cold.3+0x54/0x5c [ 41.496949] ccid3_hc_rx_packet_recv+0x5c4/0xeb0 [ 41.501683] ? dccp_parse_options+0x4a1/0x12f0 [ 41.506250] ? ccid3_hc_tx_send_packet+0x880/0x880 [ 41.511166] dccp_deliver_input_to_ccids+0xf0/0x280 [ 41.516167] dccp_rcv_established+0x87/0xb0 [ 41.520474] dccp_v4_do_rcv+0x153/0x180 [ 41.524431] __sk_receive_skb+0x3e5/0xec0 [ 41.528564] ? sk_free+0x50/0x50 [ 41.531967] ? inet_lhash2_lookup+0x6e0/0x6e0 [ 41.536458] ? reqsk_fastopen_remove+0x660/0x660 [ 41.541201] ? lock_downgrade+0x900/0x900 [ 41.545341] ? check_preemption_disabled+0x48/0x200 [ 41.550340] ? dccp_invalid_packet+0x64/0x880 [ 41.554922] dccp_v4_rcv+0x10f9/0x1f58 [ 41.558801] ? dccp_v4_err+0x18a0/0x18a0 [ 41.562894] ? __lock_is_held+0xb5/0x140 [ 41.566955] ip_local_deliver_finish+0x2e9/0xda0 [ 41.571694] ? ip_sublist_rcv_finish+0x3a0/0x3a0 [ 41.576433] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 41.581432] ? nf_hook_slow+0x11e/0x1c0 [ 41.585392] ip_local_deliver+0x1e9/0x750 [ 41.589522] ? ip_call_ra_chain+0x730/0x730 [ 41.593825] ? ip_sublist_rcv_finish+0x3a0/0x3a0 [ 41.598567] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 41.604348] ? kasan_check_read+0x11/0x20 [ 41.608477] ? rcu_bh_qs+0xc0/0xc0 [ 41.611999] ip_rcv_finish+0x1f9/0x300 [ 41.615871] ip_rcv+0xed/0x600 [ 41.619043] ? enqueue_entity+0x34b/0x1ff0 [ 41.623266] ? ip_local_deliver+0x750/0x750 [ 41.627573] ? ip_rcv_finish_core.isra.16+0x1f40/0x1f40 [ 41.632925] ? lock_acquire+0x1ed/0x520 [ 41.636884] ? process_backlog+0x1a7/0x6f0 [ 41.641104] __netif_receive_skb_one_core+0x14d/0x200 [ 41.646279] ? __netif_receive_skb_core+0x3b30/0x3b30 [ 41.651499] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 41.656769] ? rcu_bh_qs+0xc0/0xc0 [ 41.660292] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 41.665731] __netif_receive_skb+0x2c/0x1e0 [ 41.670038] process_backlog+0x218/0x6f0 [ 41.674095] net_rx_action+0x7c5/0x1950 [ 41.678070] ? napi_complete_done+0x6d0/0x6d0 [ 41.682562] ? try_to_wake_up+0x10a/0x12f0 [ 41.686784] ? trace_hardirqs_off+0xb8/0x310 [ 41.691180] ? kasan_check_read+0x11/0x20 [ 41.695360] ? do_raw_spin_unlock+0xa7/0x2f0 [ 41.699764] ? trace_hardirqs_on+0x310/0x310 [ 41.704161] ? rcu_read_lock+0x70/0x70 [ 41.708039] ? try_to_wake_up+0x10a/0x12f0 [ 41.712259] ? migrate_swap_stop+0x930/0x930 [ 41.716647] ? find_held_lock+0x36/0x1c0 [ 41.720698] ? pvclock_read_flags+0x160/0x160 [ 41.725180] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.730742] ? check_preemption_disabled+0x48/0x200 [ 41.735781] ? print_usage_bug+0xc0/0xc0 [ 41.739854] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.745394] ? check_preemption_disabled+0x48/0x200 [ 41.750420] ? __local_bh_enable+0xef/0x130 [ 41.754749] ? graph_lock+0x170/0x170 [ 41.758554] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.764108] ? check_preemption_disabled+0x48/0x200 [ 41.769124] ? check_preemption_disabled+0x48/0x200 [ 41.774151] ? __lock_is_held+0xb5/0x140 [ 41.778226] __do_softirq+0x30b/0xad8 [ 41.782037] ? __irqentry_text_end+0x1f9618/0x1f9618 [ 41.787147] ? smp_reschedule_interrupt+0x109/0x650 [ 41.792162] ? smp_thermal_interrupt+0x850/0x850 [ 41.796920] ? ret_from_intr+0xb/0x1e [ 41.800723] ? trace_hardirqs_off_caller+0xbb/0x310 [ 41.805740] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.810583] ? trace_hardirqs_on_caller+0x310/0x310 [ 41.815602] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 41.821141] ? check_preemption_disabled+0x48/0x200 [ 41.826158] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 41.831702] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.836552] ? ip_finish_output2+0xa83/0x1860 [ 41.841052] do_softirq_own_stack+0x2a/0x40 [ 41.845381] [ 41.847626] do_softirq.part.13+0x126/0x160 [ 41.851952] __local_bh_enable_ip+0x21d/0x260 [ 41.856452] ip_finish_output2+0xab6/0x1860 [ 41.860778] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 41.866581] ? ip_copy_metadata+0xe10/0xe10 [ 41.870906] ? graph_lock+0x170/0x170 [ 41.874711] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.880261] ? check_preemption_disabled+0x48/0x200 [ 41.885282] ? check_preemption_disabled+0x48/0x200 [ 41.890298] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.895832] ? ipv4_mtu+0x37d/0x590 [ 41.899467] ? __lock_is_held+0xb5/0x140 [ 41.903542] ip_finish_output+0x7fd/0xf90 [ 41.907692] ? ip_finish_output+0x7fd/0xf90 [ 41.912017] ? ip_fragment.constprop.50+0x240/0x240 [ 41.917036] ? kasan_check_read+0x11/0x20 [ 41.921190] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 41.926473] ? rcu_bh_qs+0xc0/0xc0 [ 41.930016] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 41.935035] ? nf_hook_slow+0x11e/0x1c0 [ 41.939015] ip_output+0x21d/0x8d0 [ 41.942560] ? ip_mc_output+0x15b0/0x15b0 [ 41.946712] ? ip_fragment.constprop.50+0x240/0x240 [ 41.951731] ? __lock_is_held+0xb5/0x140 [ 41.955805] ip_local_out+0xc5/0x1b0 [ 41.959521] __ip_queue_xmit+0x9af/0x1f30 [ 41.963680] ? ip_build_and_send_pkt+0xc80/0xc80 [ 41.968442] ? __skb_checksum+0x920/0x920 [ 41.972588] ? skb_send_sock+0x50/0x50 [ 41.976477] ? reqsk_fastopen_remove+0x660/0x660 [ 41.981236] ? dccp_insert_option_padding+0xbc/0xe0 [ 41.986262] ip_queue_xmit+0x56/0x70 [ 41.989980] dccp_transmit_skb+0x98c/0x12e0 [ 41.994309] dccp_xmit_packet+0x25e/0x7d0 [ 41.998461] ? kasan_check_write+0x14/0x20 [ 42.002696] ? do_raw_spin_lock+0xc1/0x200 [ 42.006929] ? dccp_send_sync+0x270/0x270 [ 42.011094] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 42.016118] ? ccid3_hc_tx_send_packet+0x358/0x880 [ 42.021057] dccp_write_xmit+0x190/0x1f0 [ 42.025135] dccp_sendmsg+0xdc8/0x1020 [ 42.029036] ? dccp_getsockopt+0xf0/0xf0 [ 42.033110] ? find_held_lock+0x36/0x1c0 [ 42.037177] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 42.042118] ? aa_sk_perm+0x218/0x8b0 [ 42.045918] ? __might_fault+0x12b/0x1e0 [ 42.049984] ? aa_af_perm+0x5a0/0x5a0 [ 42.053786] ? lock_release+0x970/0x970 [ 42.057762] ? arch_local_save_flags+0x40/0x40 [ 42.062348] inet_sendmsg+0x1a1/0x690 [ 42.066151] ? ipip_gro_receive+0x100/0x100 [ 42.070473] ? apparmor_socket_sendmsg+0x29/0x30 [ 42.075228] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.080768] ? security_socket_sendmsg+0x94/0xc0 [ 42.085524] ? ipip_gro_receive+0x100/0x100 [ 42.089848] sock_sendmsg+0xd5/0x120 [ 42.093562] ___sys_sendmsg+0x51d/0x930 [ 42.097546] ? copy_msghdr_from_user+0x580/0x580 [ 42.102310] ? save_stack+0xa9/0xd0 [ 42.105941] ? __kasan_slab_free+0x102/0x150 [ 42.110345] ? kasan_slab_free+0xe/0x10 [ 42.114319] ? kfree+0xcf/0x230 [ 42.117603] ? __fget_light+0x2e9/0x430 [ 42.121581] ? fget_raw+0x20/0x20 [ 42.125036] ? kasan_check_read+0x11/0x20 [ 42.129198] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.133607] ? trace_hardirqs_on+0x310/0x310 [ 42.138024] ? kasan_check_write+0x14/0x20 [ 42.142261] ? trace_hardirqs_off+0xb8/0x310 [ 42.146681] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 42.152215] ? sockfd_lookup_light+0xc5/0x160 [ 42.156714] __sys_sendmmsg+0x246/0x6d0 [ 42.160701] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 42.165027] ? do_dccp_setsockopt.isra.10+0xd1/0x7b0 [ 42.170137] ? dccp_setsockopt+0x9d/0xf0 [ 42.174219] ? __x64_sys_futex+0x47f/0x6a0 [ 42.178457] ? do_syscall_64+0x9a/0x820 [ 42.182433] ? do_syscall_64+0x9a/0x820 [ 42.186407] ? lockdep_hardirqs_on+0x421/0x5c0 [ 42.190994] ? trace_hardirqs_on+0xbd/0x310 [ 42.195319] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.200683] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 42.206140] __x64_sys_sendmmsg+0x9d/0x100 [ 42.210379] do_syscall_64+0x1b9/0x820 [ 42.214266] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.219631] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.224560] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.229581] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.234596] ? recalc_sigpending_tsk+0x180/0x180 [ 42.239356] ? kasan_check_write+0x14/0x20 [ 42.243598] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.248450] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.253640] RIP: 0033:0x446cb9 [ 42.256834] 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 [ 42.275736] RSP: 002b:00007f07c7281da8 EFLAGS: 00000297 ORIG_RAX: 0000000000000133 [ 42.283445] RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 0000000000446cb9 [ 42.290709] RDX: 0000000000000003 RSI: 00000000200037c0 RDI: 0000000000000005 [ 42.297980] RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000 [ 42.305244] R10: 0000000000000080 R11: 0000000000000297 R12: 00000000006dcc5c [ 42.312956] R13: cdef9a1cfd2198c8 R14: d5f212e95c33dd08 R15: 0000000000000001