Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[[ 30.848242] audit: type=1800 audit(1540970305.619:33): pid=5649 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 1G[ ok [39[ 30.870801] audit: type=1800 audit(1540970305.619:34): pid=5649 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 ;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 58.408249] audit: type=1400 audit(1540970333.179:35): avc: denied { map } for pid=5831 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. [ 64.902609] audit: type=1400 audit(1540970339.679:36): avc: denied { map } for pid=5843 comm="syz-executor008" path="/root/syz-executor008680366" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 64.917801] IPVS: ftp: loaded support on port[0] = 21 [ 65.089023] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.095920] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.103138] device bridge_slave_0 entered promiscuous mode [ 65.123748] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.130152] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.137132] device bridge_slave_1 entered promiscuous mode [ 65.155671] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 65.173712] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 65.224164] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 65.244469] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 65.319893] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 65.327220] team0: Port device team_slave_0 added [ 65.346423] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 65.353585] team0: Port device team_slave_1 added [ 65.370274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.391296] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.409644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.428650] 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 [ 65.577303] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.583817] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.590719] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.597282] 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 [ 66.116752] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.168862] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 66.221570] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 66.228647] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.236657] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.280531] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 66.568649] audit: type=1400 audit(1540970341.339:37): avc: denied { name_bind } for pid=5844 comm="syz-executor008" src=20000 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 66.591562] audit: type=1400 audit(1540970341.339:38): avc: denied { node_bind } for pid=5844 comm="syz-executor008" src=20000 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 [ 66.614895] audit: type=1400 audit(1540970341.369:39): avc: denied { name_connect } for pid=5844 comm="syz-executor008" dest=20000 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 66.626716] 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() [ 66.651509] CPU: 0 PID: 6085 Comm: syz-executor008 Not tainted 4.19.0+ #91 [ 66.658513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.667976] Call Trace: [ 66.670568] [ 66.672708] dump_stack+0x244/0x39d [ 66.676325] ? dump_stack_print_info.cold.1+0x20/0x20 [ 66.681503] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 66.687034] ? tfrc_rx_handle_loss+0x67b/0x1eb0 [ 66.691695] tfrc_rx_hist_sample_rtt.cold.3+0x54/0x5c [ 66.696887] ccid3_hc_rx_packet_recv+0x5c4/0xeb0 [ 66.701638] ? dccp_parse_options+0x4a1/0x12f0 [ 66.706210] ? ccid3_first_li+0x400/0x400 [ 66.710354] dccp_deliver_input_to_ccids+0xf0/0x280 [ 66.715364] dccp_rcv_established+0x87/0xb0 [ 66.719682] dccp_v4_do_rcv+0x153/0x180 [ 66.723660] __sk_receive_skb+0x3e5/0xec0 [ 66.727801] ? sk_free+0x50/0x50 [ 66.731274] ? inet_lhash2_lookup+0x6e0/0x6e0 [ 66.735757] ? reqsk_fastopen_remove+0x660/0x660 [ 66.740519] ? lock_downgrade+0x900/0x900 [ 66.744662] ? check_preemption_disabled+0x48/0x280 [ 66.749667] ? dccp_invalid_packet+0x64/0x880 [ 66.754150] dccp_v4_rcv+0x10f9/0x1f58 [ 66.758030] ? dccp_v4_err+0x18a0/0x18a0 [ 66.762082] ? __lock_is_held+0xb5/0x140 [ 66.766137] ip_local_deliver_finish+0x2e9/0xda0 [ 66.770881] ? ip_sublist_rcv_finish+0x3a0/0x3a0 [ 66.775626] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 66.780625] ? nf_hook_slow+0x11e/0x1c0 [ 66.784586] ip_local_deliver+0x1e9/0x750 [ 66.788722] ? ip_call_ra_chain+0x730/0x730 [ 66.793029] ? ip_sublist_rcv_finish+0x3a0/0x3a0 [ 66.797914] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 66.802830] ? kasan_check_read+0x11/0x20 [ 66.806961] ? rcu_softirq_qs+0x20/0x20 [ 66.810925] ip_rcv_finish+0x1f9/0x300 [ 66.814798] ip_rcv+0xed/0x600 [ 66.817987] ? ip_local_deliver+0x750/0x750 [ 66.822306] ? ip_rcv_finish_core.isra.16+0x1f40/0x1f40 [ 66.827662] ? lock_acquire+0x1ed/0x520 [ 66.831622] ? process_backlog+0x1dd/0x7a0 [ 66.835842] __netif_receive_skb_one_core+0x14d/0x200 [ 66.841018] ? __netif_receive_skb_core+0x3b30/0x3b30 [ 66.846192] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 66.851592] ? rcu_softirq_qs+0x20/0x20 [ 66.855580] ? trace_hardirqs_off_caller+0x310/0x310 [ 66.860809] __netif_receive_skb+0x2c/0x1e0 [ 66.865310] process_backlog+0x24e/0x7a0 [ 66.869372] net_rx_action+0x7fa/0x19b0 [ 66.873356] ? napi_complete_done+0x7a0/0x7a0 [ 66.877841] ? lock_downgrade+0x900/0x900 [ 66.881976] ? lock_downgrade+0x900/0x900 [ 66.886114] ? trace_hardirqs_off+0xb8/0x310 [ 66.890622] ? kasan_check_read+0x11/0x20 [ 66.894817] ? do_raw_spin_unlock+0xa7/0x330 [ 66.899217] ? lock_pin_lock+0x350/0x350 [ 66.903266] ? try_to_wake_up+0x11c/0x1490 [ 66.907486] ? migrate_swap_stop+0x8a0/0x8a0 [ 66.911879] ? find_held_lock+0x36/0x1c0 [ 66.915931] ? pvclock_read_flags+0x160/0x160 [ 66.920430] ? check_preemption_disabled+0x48/0x280 [ 66.925434] ? print_usage_bug+0xc0/0xc0 [ 66.929487] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 66.935017] ? check_preemption_disabled+0x48/0x280 [ 66.940025] ? __local_bh_enable+0xf6/0x140 [ 66.944335] ? zap_class+0x640/0x640 [ 66.948038] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 66.953570] ? check_preemption_disabled+0x48/0x280 [ 66.958586] ? __lock_is_held+0xb5/0x140 [ 66.962658] __do_softirq+0x308/0xb7e [ 66.966452] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 66.971535] ? irq_exit+0xbd/0x1c0 [ 66.975062] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 66.980066] ? smp_reschedule_interrupt+0x109/0x650 [ 66.985069] ? smp_call_function_single_interrupt+0x650/0x650 [ 66.990943] ? ret_from_intr+0xb/0x1e [ 66.994750] ? trace_hardirqs_off_caller+0xbb/0x310 [ 66.999758] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 67.004597] ? trace_hardirqs_on_caller+0x310/0x310 [ 67.009601] ? task_prio+0x50/0x50 [ 67.013148] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.018681] ? check_preemption_disabled+0x48/0x280 [ 67.023715] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 67.028641] ? ip_finish_output2+0xa83/0x1860 [ 67.033124] do_softirq_own_stack+0x2a/0x40 [ 67.037428] [ 67.039648] do_softirq.part.14+0x126/0x160 [ 67.043954] __local_bh_enable_ip+0x21d/0x260 [ 67.048434] ip_finish_output2+0xab6/0x1860 [ 67.052744] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 67.057666] ? ip_copy_metadata+0xe10/0xe10 [ 67.061973] ? zap_class+0x640/0x640 [ 67.065676] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.071200] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.076726] ? ipv4_mtu+0x39f/0x590 [ 67.080343] ? __lock_is_held+0xb5/0x140 [ 67.084395] ip_finish_output+0x7fd/0xfa0 [ 67.088525] ? ip_finish_output+0x7fd/0xfa0 [ 67.092832] ? ip_fragment.constprop.50+0x240/0x240 [ 67.097836] ? kasan_check_read+0x11/0x20 [ 67.101969] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 67.107229] ? rcu_softirq_qs+0x20/0x20 [ 67.111212] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 67.116213] ? nf_hook_slow+0x11e/0x1c0 [ 67.120174] ip_output+0x21d/0x8d0 [ 67.123699] ? ip_mc_output+0x15b0/0x15b0 [ 67.127835] ? ip_fragment.constprop.50+0x240/0x240 [ 67.132836] ? __lock_is_held+0xb5/0x140 [ 67.136888] ip_local_out+0xc5/0x1b0 [ 67.140589] __ip_queue_xmit+0x9af/0x1f30 [ 67.144726] ? ip_build_and_send_pkt+0xc90/0xc90 [ 67.149469] ? __skb_checksum+0x920/0x920 [ 67.153603] ? skb_send_sock+0x50/0x50 [ 67.157489] ? reqsk_fastopen_remove+0x660/0x660 [ 67.162231] ? dccp_insert_option_padding+0xbc/0xe0 [ 67.167239] ip_queue_xmit+0x56/0x70 [ 67.170942] dccp_transmit_skb+0x98c/0x12e0 [ 67.175256] dccp_xmit_packet+0x25e/0x7d0 [ 67.179388] ? _copy_from_iter_full+0x2b8/0xc20 [ 67.184045] ? dccp_send_sync+0x270/0x270 [ 67.188179] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 67.193180] ? ccid3_hc_tx_send_packet+0x358/0x876 [ 67.198098] dccp_write_xmit+0x190/0x1f0 [ 67.202144] dccp_sendmsg+0xdc8/0x1020 [ 67.206023] ? dccp_setsockopt_cscov.part.10+0x290/0x290 [ 67.211459] ? rw_copy_check_uvector+0x310/0x3e0 [ 67.216202] ? sock_has_perm+0x2bc/0x3e0 [ 67.220247] ? selinux_secmark_relabel_packet+0xe0/0xe0 [ 67.225607] ? dup_iter+0x212/0x270 [ 67.229225] inet_sendmsg+0x1a1/0x690 [ 67.233012] ? copy_msghdr_from_user+0x3c1/0x580 [ 67.237753] ? ipip_gro_receive+0x100/0x100 [ 67.242069] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.247591] ? security_socket_sendmsg+0x94/0xc0 [ 67.252347] ? ipip_gro_receive+0x100/0x100 [ 67.256682] sock_sendmsg+0xd5/0x120 [ 67.260378] ___sys_sendmsg+0x7fd/0x930 [ 67.264341] ? copy_msghdr_from_user+0x580/0x580 [ 67.269084] ? _raw_spin_unlock_bh+0x30/0x40 [ 67.273483] ? check_preemption_disabled+0x48/0x280 [ 67.278515] ? __fget_light+0x2e9/0x430 [ 67.282504] ? fget_raw+0x20/0x20 [ 67.285945] ? release_sock+0x1ec/0x2c0 [ 67.289915] ? lock_sock_nested+0x9a/0x120 [ 67.294136] ? __release_sock+0x3a0/0x3a0 [ 67.298271] ? __local_bh_enable_ip+0x160/0x260 [ 67.302934] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 67.308458] ? sockfd_lookup_light+0xc5/0x160 [ 67.312940] __sys_sendmsg+0x11d/0x280 [ 67.316818] ? __ia32_sys_shutdown+0x80/0x80 [ 67.321210] ? __x64_sys_futex+0x47f/0x6a0 [ 67.325430] ? do_syscall_64+0x9a/0x820 [ 67.329387] ? do_syscall_64+0x9a/0x820 [ 67.333355] ? trace_hardirqs_off_caller+0x310/0x310 [ 67.338468] ? trace_hardirqs_off+0xb8/0x310 [ 67.342865] __x64_sys_sendmsg+0x78/0xb0 [ 67.346912] do_syscall_64+0x1b9/0x820 [ 67.350802] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 67.356164] ? syscall_return_slowpath+0x5e0/0x5e0 [ 67.361094] ? trace_hardirqs_on_caller+0x310/0x310 [ 67.366097] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 67.371098] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 67.377764] ? __switch_to_asm+0x40/0x70 [ 67.381838] ? __switch_to_asm+0x34/0x70 [ 67.385888] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 67.390718] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.395892] RIP: 0033:0x446a69 [ 67.399068] 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 [ 67.417954] RSP: 002b:00007f3093c67da8 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 67.425645] RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 0000000000446a69 [ 67.432899] RDX: 0000000000000800 RSI: 00000000200004c0 RDI: 0000000000000005 [ 67.440149] RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000 [ 67.447402] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dcc5c [ 67.454656] R13: b8f0db312c1fe558 R14: d6bf4eea9265b264 R15: 0000000000000001