[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 29.584175] audit: type=1800 audit(1538342221.031:33): pid=5305 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 [ 29.606413] audit: type=1800 audit(1538342221.041:34): pid=5305 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 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 32.099020] audit: type=1400 audit(1538342223.551:35): avc: denied { map } for pid=5481 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 '10.128.0.124' (ECDSA) to the list of known hosts. [ 38.664865] audit: type=1400 audit(1538342230.111:36): avc: denied { map } for pid=5495 comm="syz-executor609" path="/root/syz-executor609760929" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 38.697402] IPVS: ftp: loaded support on port[0] = 21 [ 38.861291] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.867958] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.874936] device bridge_slave_0 entered promiscuous mode [ 38.893393] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.899888] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.907187] device bridge_slave_1 entered promiscuous mode [ 38.924751] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 38.942382] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 38.991239] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.011766] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.084816] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 39.092815] team0: Port device team_slave_0 added [ 39.110688] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 39.117858] team0: Port device team_slave_1 added [ 39.134199] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.152611] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.171796] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.191906] 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 [ 39.332804] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.339275] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.346206] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.352551] 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 [ 39.850501] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.901472] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.950521] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 39.957049] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.964135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.016035] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 40.303760] audit: type=1400 audit(1538342231.751:37): avc: denied { name_bind } for pid=5496 comm="syz-executor609" 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 [ 40.325587] 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() [ 40.327519] audit: type=1400 audit(1538342231.751:38): avc: denied { node_bind } for pid=5496 comm="syz-executor609" 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 [ 40.339964] CPU: 1 PID: 5737 Comm: syz-executor609 Not tainted 4.19.0-rc6+ #41 [ 40.339973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.339978] Call Trace: [ 40.339984] [ 40.340006] dump_stack+0x1c4/0x2b4 [ 40.340026] ? dump_stack_print_info.cold.2+0x52/0x52 [ 40.362928] audit: type=1400 audit(1538342231.771:39): avc: denied { name_connect } for pid=5496 comm="syz-executor609" 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 [ 40.369926] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.369941] ? tfrc_rx_handle_loss+0x67b/0x1eb0 [ 40.369961] tfrc_rx_hist_sample_rtt.cold.3+0x54/0x5c [ 40.369983] ccid3_hc_rx_packet_recv+0x5c4/0xeb0 [ 40.369996] ? dccp_parse_options+0x4a1/0x12f0 [ 40.370017] ? ccid3_hc_tx_send_packet+0x880/0x880 [ 40.370033] dccp_deliver_input_to_ccids+0xf0/0x280 [ 40.370050] dccp_rcv_established+0x87/0xb0 [ 40.370065] dccp_v4_do_rcv+0x153/0x180 [ 40.370084] __sk_receive_skb+0x3e5/0xec0 [ 40.463637] ? sk_free+0x50/0x50 [ 40.467003] ? inet_lhash2_lookup+0x6e0/0x6e0 [ 40.471480] ? reqsk_fastopen_remove+0x660/0x660 [ 40.476221] ? lock_downgrade+0x900/0x900 [ 40.480355] ? check_preemption_disabled+0x48/0x200 [ 40.485358] ? dccp_invalid_packet+0x64/0x880 [ 40.489837] dccp_v4_rcv+0x10f9/0x1f58 [ 40.493712] ? dccp_v4_err+0x18a0/0x18a0 [ 40.497761] ? __lock_is_held+0xb5/0x140 [ 40.501811] ip_local_deliver_finish+0x2e9/0xda0 [ 40.506570] ? ip_sublist_rcv_finish+0x3f0/0x3f0 [ 40.511311] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.516307] ? nf_hook_slow+0x11e/0x1c0 [ 40.520268] ip_local_deliver+0x1e9/0x750 [ 40.524400] ? ip_call_ra_chain+0x730/0x730 [ 40.528708] ? ip_sublist_rcv_finish+0x3f0/0x3f0 [ 40.533450] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 40.539228] ? kasan_check_read+0x11/0x20 [ 40.543360] ? rcu_bh_qs+0xc0/0xc0 [ 40.546890] ip_rcv_finish+0x1f9/0x300 [ 40.550764] ip_rcv+0xed/0x610 [ 40.553938] ? enqueue_entity+0x34b/0x1ff0 [ 40.558158] ? ip_local_deliver+0x750/0x750 [ 40.562465] ? ip_rcv_finish_core.isra.15+0x1f40/0x1f40 [ 40.567815] ? lock_acquire+0x1ed/0x520 [ 40.571773] ? process_backlog+0x1a7/0x6f0 [ 40.575994] __netif_receive_skb_one_core+0x14d/0x200 [ 40.581174] ? __netif_receive_skb_core+0x3b60/0x3b60 [ 40.586346] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 40.591604] ? rcu_bh_qs+0xc0/0xc0 [ 40.595128] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 40.600567] __netif_receive_skb+0x2c/0x1e0 [ 40.604873] process_backlog+0x218/0x6f0 [ 40.608924] net_rx_action+0x7c5/0x1950 [ 40.612905] ? napi_complete_done+0x6d0/0x6d0 [ 40.617387] ? try_to_wake_up+0x10a/0x12f0 [ 40.621611] ? trace_hardirqs_off+0xb8/0x310 [ 40.626002] ? kasan_check_read+0x11/0x20 [ 40.630131] ? do_raw_spin_unlock+0xa7/0x2f0 [ 40.634523] ? trace_hardirqs_on+0x310/0x310 [ 40.638914] ? rcu_read_lock+0x70/0x70 [ 40.642792] ? try_to_wake_up+0x10a/0x12f0 [ 40.647463] ? migrate_swap_stop+0x930/0x930 [ 40.651852] ? find_held_lock+0x36/0x1c0 [ 40.655907] ? pvclock_read_flags+0x160/0x160 [ 40.660387] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.665909] ? check_preemption_disabled+0x48/0x200 [ 40.670912] ? print_usage_bug+0xc0/0xc0 [ 40.674956] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.680476] ? check_preemption_disabled+0x48/0x200 [ 40.685484] ? __local_bh_enable+0xef/0x130 [ 40.689795] ? graph_lock+0x170/0x170 [ 40.693577] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.699101] ? check_preemption_disabled+0x48/0x200 [ 40.705165] ? check_preemption_disabled+0x48/0x200 [ 40.711154] ? __lock_is_held+0xb5/0x140 [ 40.715216] __do_softirq+0x30b/0xad8 [ 40.719007] ? __irqentry_text_end+0x1f9618/0x1f9618 [ 40.724094] ? irq_exit+0xbd/0x1c0 [ 40.727619] ? smp_apic_timer_interrupt+0x1cb/0x760 [ 40.732618] ? smp_reschedule_interrupt+0x109/0x650 [ 40.737618] ? smp_call_function_single_interrupt+0x650/0x650 [ 40.743483] ? ret_from_intr+0xb/0x1e [ 40.747529] ? trace_hardirqs_off_caller+0xbb/0x310 [ 40.753412] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.758242] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.763257] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.768779] ? check_preemption_disabled+0x48/0x200 [ 40.773778] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.779303] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.784131] ? ip_finish_output2+0xa83/0x1860 [ 40.788611] do_softirq_own_stack+0x2a/0x40 [ 40.792911] [ 40.795130] do_softirq.part.13+0x126/0x160 [ 40.799437] __local_bh_enable_ip+0x21d/0x260 [ 40.803912] ip_finish_output2+0xab6/0x1860 [ 40.808219] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 40.813999] ? ip_copy_metadata+0xe10/0xe10 [ 40.818307] ? graph_lock+0x170/0x170 [ 40.822095] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.827618] ? check_preemption_disabled+0x48/0x200 [ 40.832617] ? check_preemption_disabled+0x48/0x200 [ 40.837620] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.843139] ? ipv4_mtu+0x37d/0x590 [ 40.846752] ? __lock_is_held+0xb5/0x140 [ 40.850803] ip_finish_output+0x7fd/0xf60 [ 40.854932] ? ip_finish_output+0x7fd/0xf60 [ 40.859238] ? ip_fragment.constprop.49+0x240/0x240 [ 40.864235] ? kasan_check_read+0x11/0x20 [ 40.868367] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 40.873647] ? rcu_bh_qs+0xc0/0xc0 [ 40.877186] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.882189] ? nf_hook_slow+0x11e/0x1c0 [ 40.886148] ip_output+0x21d/0x8d0 [ 40.889682] ? ip_mc_output+0x15b0/0x15b0 [ 40.893814] ? ip_fragment.constprop.49+0x240/0x240 [ 40.898814] ? __lock_is_held+0xb5/0x140 [ 40.902860] ip_local_out+0xc5/0x1b0 [ 40.906558] __ip_queue_xmit+0x9af/0x1f30 [ 40.910696] ? ip_build_and_send_pkt+0xc80/0xc80 [ 40.915436] ? __skb_checksum+0x920/0x920 [ 40.920091] ? skb_send_sock+0x50/0x50 [ 40.923956] ? reqsk_fastopen_remove+0x660/0x660 [ 40.928697] ? dccp_insert_option_padding+0xbc/0xe0 [ 40.933707] ip_queue_xmit+0x56/0x70 [ 40.937408] dccp_transmit_skb+0x98c/0x12e0 [ 40.941721] dccp_xmit_packet+0x25e/0x7d0 [ 40.945860] ? kasan_check_write+0x14/0x20 [ 40.950087] ? do_raw_spin_lock+0xc1/0x200 [ 40.954304] ? dccp_send_sync+0x270/0x270 [ 40.958451] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.963449] ? ccid3_hc_tx_send_packet+0x358/0x880 [ 40.968365] dccp_write_xmit+0x190/0x1f0 [ 40.972410] dccp_sendmsg+0xdc8/0x1020 [ 40.976286] ? dccp_getsockopt+0xf0/0xf0 [ 40.980331] ? rw_copy_check_uvector+0x310/0x3e0 [ 40.985071] ? sock_has_perm+0x2bc/0x3e0 [ 40.989114] ? selinux_secmark_relabel_packet+0xe0/0xe0 [ 40.994463] ? dup_iter+0x212/0x270 [ 40.998081] inet_sendmsg+0x1a1/0x690 [ 41.001863] ? copy_msghdr_from_user+0x3c1/0x580 [ 41.006616] ? ipip_gro_receive+0x100/0x100 [ 41.010926] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.016448] ? security_socket_sendmsg+0x94/0xc0 [ 41.021188] ? ipip_gro_receive+0x100/0x100 [ 41.025492] sock_sendmsg+0xd5/0x120 [ 41.029192] ___sys_sendmsg+0x7fd/0x930 [ 41.033153] ? copy_msghdr_from_user+0x580/0x580 [ 41.037895] ? _raw_spin_unlock_bh+0x30/0x40 [ 41.042292] ? check_preemption_disabled+0x48/0x200 [ 41.047292] ? __fget_light+0x2e9/0x430 [ 41.051249] ? fget_raw+0x20/0x20 [ 41.054687] ? release_sock+0x1ec/0x2c0 [ 41.058642] ? lock_sock_nested+0x9a/0x120 [ 41.062866] ? __release_sock+0x3a0/0x3a0 [ 41.066998] ? __local_bh_enable_ip+0x160/0x260 [ 41.071680] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 41.077201] ? sockfd_lookup_light+0xc5/0x160 [ 41.081683] __sys_sendmsg+0x11d/0x280 [ 41.085553] ? __ia32_sys_shutdown+0x80/0x80 [ 41.089949] ? __x64_sys_futex+0x47f/0x6a0 [ 41.094166] ? do_syscall_64+0x9a/0x820 [ 41.098129] ? do_syscall_64+0x9a/0x820 [ 41.102089] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 41.107521] ? trace_hardirqs_off+0xb8/0x310 [ 41.111911] __x64_sys_sendmsg+0x78/0xb0 [ 41.115956] do_syscall_64+0x1b9/0x820 [ 41.119824] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.125201] ? syscall_return_slowpath+0x5e0/0x5e0 [ 41.130132] ? trace_hardirqs_on_caller+0x310/0x310 [ 41.135132] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 41.141365] ? recalc_sigpending_tsk+0x180/0x180 [ 41.146102] ? kasan_check_write+0x14/0x20 [ 41.150322] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.155150] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.160329] RIP: 0033:0x446a49 [ 41.163506] 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 [ 41.182387] RSP: 002b:00007f0b84d52da8 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 41.190078] RAX: ffffffffffffffda RBX: 00000000006dec58 RCX: 0000000000446a49 [ 41.197327] RDX: 0000000004000080 RSI: 00000000200030c0 RDI: 0000000000000005 [ 41.204590] RBP: 00000000006dec50 R08: 0000000000000000 R09: 0000000000000000 [ 41.211841] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dec5c [ 41.219093] R13: 00000000004b01c8 R14: 0000000020001f80 R15: 0000000000000001