[info] Using makefile-style concurrent boot in runlevel 2. [ 24.742880] audit: type=1800 audit(1538340149.201:21): pid=5198 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.770100] audit: type=1800 audit(1538340149.201:22): pid=5198 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.35' (ECDSA) to the list of known hosts. syzkaller login: [ 44.186358] IPVS: ftp: loaded support on port[0] = 21 [ 44.351848] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.358718] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.366024] device bridge_slave_0 entered promiscuous mode [ 44.384677] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.391237] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.398232] device bridge_slave_1 entered promiscuous mode [ 44.416388] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.434514] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.485055] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.506858] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.581727] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.589512] team0: Port device team_slave_0 added [ 44.607201] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.614563] team0: Port device team_slave_1 added [ 44.632864] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.652082] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.671523] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.691534] 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 [ 44.837991] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.844775] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.851838] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.858414] 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 [ 45.382512] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.435838] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.488070] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.494294] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.502384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.545563] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 45.837691] 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() [ 45.851499] CPU: 1 PID: 5596 Comm: syz-executor240 Not tainted 4.19.0-rc6+ #39 [ 45.859268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.868621] Call Trace: [ 45.871197] [ 45.873355] dump_stack+0x1c4/0x2b4 [ 45.877090] ? dump_stack_print_info.cold.2+0x52/0x52 [ 45.882672] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.888323] ? tfrc_rx_handle_loss+0x67b/0x1eb0 [ 45.892995] tfrc_rx_hist_sample_rtt.cold.3+0x54/0x5c [ 45.898190] ccid3_hc_rx_packet_recv+0x5c4/0xeb0 [ 45.902944] ? dccp_parse_options+0x4a1/0x12f0 [ 45.907532] ? ccid3_hc_tx_send_packet+0x880/0x880 [ 45.912599] dccp_deliver_input_to_ccids+0xf0/0x280 [ 45.917922] dccp_rcv_established+0x87/0xb0 [ 45.922255] dccp_v4_do_rcv+0x153/0x180 [ 45.926420] __sk_receive_skb+0x3e5/0xec0 [ 45.930720] ? sk_free+0x50/0x50 [ 45.934095] ? inet_lhash2_lookup+0x6e0/0x6e0 [ 45.938594] ? reqsk_fastopen_remove+0x660/0x660 [ 45.943354] ? lock_downgrade+0x900/0x900 [ 45.948201] ? check_preemption_disabled+0x48/0x200 [ 45.953352] ? dccp_invalid_packet+0x64/0x880 [ 45.957849] dccp_v4_rcv+0x10f9/0x1f58 [ 45.961740] ? dccp_v4_err+0x18a0/0x18a0 [ 45.965810] ? __lock_is_held+0xb5/0x140 [ 45.970017] ip_local_deliver_finish+0x2e9/0xda0 [ 45.974774] ? ip_sublist_rcv_finish+0x3f0/0x3f0 [ 45.979616] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 45.984636] ? nf_hook_slow+0x11e/0x1c0 [ 45.988610] ip_local_deliver+0x1e9/0x750 [ 45.992757] ? ip_call_ra_chain+0x730/0x730 [ 45.997079] ? ip_sublist_rcv_finish+0x3f0/0x3f0 [ 46.001834] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 46.007626] ? kasan_check_read+0x11/0x20 [ 46.011786] ? rcu_bh_qs+0xc0/0xc0 [ 46.015324] ip_rcv_finish+0x1f9/0x300 [ 46.019210] ip_rcv+0xed/0x610 [ 46.022401] ? enqueue_entity+0x34b/0x1ff0 [ 46.026635] ? ip_local_deliver+0x750/0x750 [ 46.030955] ? ip_rcv_finish_core.isra.15+0x1f40/0x1f40 [ 46.036615] ? lock_acquire+0x1ed/0x520 [ 46.040598] ? process_backlog+0x1a7/0x6f0 [ 46.044925] __netif_receive_skb_one_core+0x14d/0x200 [ 46.050120] ? __netif_receive_skb_core+0x3b60/0x3b60 [ 46.055310] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 46.060582] ? rcu_bh_qs+0xc0/0xc0 [ 46.064284] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 46.070008] __netif_receive_skb+0x2c/0x1e0 [ 46.074334] process_backlog+0x218/0x6f0 [ 46.078659] net_rx_action+0x7c5/0x1950 [ 46.082726] ? napi_complete_done+0x6d0/0x6d0 [ 46.087403] ? try_to_wake_up+0x10a/0x12f0 [ 46.091667] ? trace_hardirqs_off+0xb8/0x310 [ 46.096191] ? kasan_check_read+0x11/0x20 [ 46.100496] ? do_raw_spin_unlock+0xa7/0x2f0 [ 46.104905] ? trace_hardirqs_on+0x310/0x310 [ 46.109314] ? rcu_read_lock+0x70/0x70 [ 46.113202] ? try_to_wake_up+0x10a/0x12f0 [ 46.117971] ? migrate_swap_stop+0x930/0x930 [ 46.122510] ? find_held_lock+0x36/0x1c0 [ 46.126576] ? pvclock_read_flags+0x160/0x160 [ 46.131197] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.136740] ? check_preemption_disabled+0x48/0x200 [ 46.141869] ? print_usage_bug+0xc0/0xc0 [ 46.146063] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.151606] ? check_preemption_disabled+0x48/0x200 [ 46.156740] ? __local_bh_enable+0xef/0x130 [ 46.161222] ? graph_lock+0x170/0x170 [ 46.165382] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.170925] ? check_preemption_disabled+0x48/0x200 [ 46.175941] ? check_preemption_disabled+0x48/0x200 [ 46.180962] ? __lock_is_held+0xb5/0x140 [ 46.185133] __do_softirq+0x30b/0xad8 [ 46.189019] ? __irqentry_text_end+0x1f9618/0x1f9618 [ 46.194412] ? smp_reschedule_interrupt+0x109/0x650 [ 46.199729] ? smp_thermal_interrupt+0x850/0x850 [ 46.204498] ? ret_from_intr+0xb/0x1e [ 46.208297] ? trace_hardirqs_off_caller+0xbb/0x310 [ 46.213318] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.218287] ? trace_hardirqs_on_caller+0x310/0x310 [ 46.223413] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.228975] ? check_preemption_disabled+0x48/0x200 [ 46.234104] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.239645] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.244495] ? ip_finish_output2+0xa83/0x1860 [ 46.248989] do_softirq_own_stack+0x2a/0x40 [ 46.253304] [ 46.255544] do_softirq.part.13+0x126/0x160 [ 46.259927] __local_bh_enable_ip+0x21d/0x260 [ 46.264455] ip_finish_output2+0xab6/0x1860 [ 46.268780] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 46.274850] ? ip_copy_metadata+0xe10/0xe10 [ 46.279304] ? graph_lock+0x170/0x170 [ 46.283107] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.288823] ? check_preemption_disabled+0x48/0x200 [ 46.293846] ? check_preemption_disabled+0x48/0x200 [ 46.298866] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.304402] ? ipv4_mtu+0x37d/0x590 [ 46.308057] ? __lock_is_held+0xb5/0x140 [ 46.312284] ip_finish_output+0x7fd/0xf60 [ 46.316459] ? ip_finish_output+0x7fd/0xf60 [ 46.320964] ? ip_fragment.constprop.49+0x240/0x240 [ 46.326081] ? kasan_check_read+0x11/0x20 [ 46.330370] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 46.335767] ? rcu_bh_qs+0xc0/0xc0 [ 46.339403] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 46.344579] ? nf_hook_slow+0x11e/0x1c0 [ 46.348560] ip_output+0x21d/0x8d0 [ 46.352255] ? ip_mc_output+0x15b0/0x15b0 [ 46.356612] ? ip_fragment.constprop.49+0x240/0x240 [ 46.361626] ? __lock_is_held+0xb5/0x140 [ 46.365688] ip_local_out+0xc5/0x1b0 [ 46.369575] __ip_queue_xmit+0x9af/0x1f30 [ 46.373815] ? ip_build_and_send_pkt+0xc80/0xc80 [ 46.378791] ? __skb_checksum+0x920/0x920 [ 46.382938] ? skb_send_sock+0x50/0x50 [ 46.386825] ? reqsk_fastopen_remove+0x660/0x660 [ 46.391689] ? dccp_insert_option_padding+0xbc/0xe0 [ 46.396713] ip_queue_xmit+0x56/0x70 [ 46.400568] dccp_transmit_skb+0x98c/0x12e0 [ 46.404897] dccp_xmit_packet+0x25e/0x7d0 [ 46.409166] ? kasan_check_write+0x14/0x20 [ 46.413526] ? do_raw_spin_lock+0xc1/0x200 [ 46.417760] ? dccp_send_sync+0x270/0x270 [ 46.421905] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 46.426915] ? ccid3_hc_tx_send_packet+0x358/0x880 [ 46.431846] dccp_write_xmit+0x190/0x1f0 [ 46.435992] dccp_sendmsg+0xdc8/0x1020 [ 46.439886] ? dccp_getsockopt+0xf0/0xf0 [ 46.444211] ? rw_copy_check_uvector+0x310/0x3e0 [ 46.448972] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.454510] ? smack_ipv6host_label+0x2b3/0x500 [ 46.459356] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.465128] ? smack_socket_getpeersec_stream+0x1d0/0x1d0 [ 46.470672] inet_sendmsg+0x1a1/0x690 [ 46.474490] ? ipip_gro_receive+0x100/0x100 [ 46.478901] ? smack_socket_sendmsg+0xb0/0x190 [ 46.483509] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.489382] ? security_socket_sendmsg+0x94/0xc0 [ 46.494252] ? ipip_gro_receive+0x100/0x100 [ 46.498689] sock_sendmsg+0xd5/0x120 [ 46.502410] ___sys_sendmsg+0x7fd/0x930 [ 46.506415] ? copy_msghdr_from_user+0x580/0x580 [ 46.511330] ? _raw_spin_unlock_bh+0x30/0x40 [ 46.515865] ? check_preemption_disabled+0x48/0x200 [ 46.520884] ? __fget_light+0x2e9/0x430 [ 46.524856] ? fget_raw+0x20/0x20 [ 46.528313] ? release_sock+0x1ec/0x2c0 [ 46.532302] ? lock_sock_nested+0x9a/0x120 [ 46.536534] ? __release_sock+0x3a0/0x3a0 [ 46.540810] ? __local_bh_enable_ip+0x160/0x260 [ 46.545600] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.551150] ? sockfd_lookup_light+0xc5/0x160 [ 46.555807] __sys_sendmsg+0x11d/0x280 [ 46.559712] ? __ia32_sys_shutdown+0x80/0x80 [ 46.564221] ? __x64_sys_futex+0x47f/0x6a0 [ 46.568485] ? do_syscall_64+0x9a/0x820 [ 46.572490] ? do_syscall_64+0x9a/0x820 [ 46.576497] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 46.581953] ? trace_hardirqs_off+0xb8/0x310 [ 46.586375] __x64_sys_sendmsg+0x78/0xb0 [ 46.590465] do_syscall_64+0x1b9/0x820 [ 46.594353] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 46.599796] ? syscall_return_slowpath+0x5e0/0x5e0 [ 46.604734] ? trace_hardirqs_on_caller+0x310/0x310 [ 46.609852] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 46.615147] ? recalc_sigpending_tsk+0x180/0x180 [ 46.619899] ? kasan_check_write+0x14/0x20 [ 46.624135] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.628984] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.634170] RIP: 0033:0x446ad9 [ 46.637370] 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 [ 46.656269] RSP: 002b:00007f94c5fdfda8 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 46.664064] RAX: ffffffffffffffda RBX: 00000000006dec58 RCX: 0000000000446ad9 [ 46.671417] RDX: 0000000004000080 RSI: 00000000200030c0 RDI: 0000000000000005 [ 46.678721] RBP: 00000000006dec50 R08: 0000000000000000 R09: 0000000000000000 [ 46.685989] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dec5c [ 46.693256] R13: 00000000004b0268 R14: 0000000020001f80 R15: 0000000000000001