Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.955625] audit: type=1800 audit(1568057997.068:33): pid=7253 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=2465 res=0 [ 36.981150] audit: type=1800 audit(1568057997.078:34): pid=7253 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=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 41.434963] audit: type=1400 audit(1568058001.548:35): avc: denied { map } for pid=7427 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 '10.128.0.209' (ECDSA) to the list of known hosts. [ 371.996885] audit: type=1400 audit(1568058332.108:36): avc: denied { map } for pid=7439 comm="syz-executor032" path="/root/syz-executor032435787" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 372.019923] IPVS: ftp: loaded support on port[0] = 21 [ 372.082070] chnl_net:caif_netlink_parms(): no params data found [ 372.113217] bridge0: port 1(bridge_slave_0) entered blocking state [ 372.120011] bridge0: port 1(bridge_slave_0) entered disabled state [ 372.127590] device bridge_slave_0 entered promiscuous mode [ 372.134607] bridge0: port 2(bridge_slave_1) entered blocking state [ 372.141052] bridge0: port 2(bridge_slave_1) entered disabled state [ 372.148050] device bridge_slave_1 entered promiscuous mode [ 372.163223] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 372.173397] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 372.189519] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 372.197152] team0: Port device team_slave_0 added [ 372.202547] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 372.209845] team0: Port device team_slave_1 added [ 372.215055] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 372.222458] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 372.279212] device hsr_slave_0 entered promiscuous mode [ 372.327039] device hsr_slave_1 entered promiscuous mode [ 372.367223] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 372.374132] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 372.388044] bridge0: port 2(bridge_slave_1) entered blocking state [ 372.394437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 372.401330] bridge0: port 1(bridge_slave_0) entered blocking state [ 372.407711] bridge0: port 1(bridge_slave_0) entered forwarding state [ 372.435989] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 372.442260] 8021q: adding VLAN 0 to HW filter on device bond0 [ 372.450380] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 372.458967] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 372.478555] bridge0: port 1(bridge_slave_0) entered disabled state [ 372.485530] bridge0: port 2(bridge_slave_1) entered disabled state [ 372.494348] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 372.503895] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 372.510133] 8021q: adding VLAN 0 to HW filter on device team0 [ 372.518954] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 372.526678] bridge0: port 1(bridge_slave_0) entered blocking state [ 372.533181] bridge0: port 1(bridge_slave_0) entered forwarding state [ 372.542850] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 372.550561] bridge0: port 2(bridge_slave_1) entered blocking state [ 372.557110] bridge0: port 2(bridge_slave_1) entered forwarding state [ 372.571858] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 372.579929] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 372.593158] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 372.603578] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 372.613886] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 372.620704] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 372.628886] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 372.636373] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 372.645275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 372.656248] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 372.666573] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 477.686747] rcu: INFO: rcu_preempt self-detected stall on CPU [ 477.692844] rcu: 1-...!: (1 GPs behind) idle=d3a/1/0x4000000000000002 softirq=10571/10572 fqs=31 [ 477.702116] rcu: (t=10501 jiffies g=5213 q=90) [ 477.706873] rcu: rcu_preempt kthread starved for 10440 jiffies! g5213 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 477.717441] rcu: RCU grace-period kthread stack dump: [ 477.722636] rcu_preempt I29104 10 2 0x80000000 [ 477.728332] Call Trace: [ 477.731039] __schedule+0x866/0x1dc0 [ 477.734761] ? pci_mmcfg_check_reserved+0x170/0x170 [ 477.739769] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 477.744905] ? lockdep_hardirqs_on+0x415/0x5d0 [ 477.749515] ? trace_hardirqs_on+0x67/0x220 [ 477.753830] schedule+0x92/0x1c0 [ 477.757186] schedule_timeout+0x4db/0xfc0 [ 477.761324] ? usleep_range+0x170/0x170 [ 477.765370] ? trace_hardirqs_on+0x67/0x220 [ 477.769703] ? kasan_check_read+0x11/0x20 [ 477.773860] ? __next_timer_interrupt+0x1a0/0x1a0 [ 477.778717] ? prepare_to_swait_exclusive+0x120/0x120 [ 477.783976] rcu_gp_kthread+0xd5c/0x2190 [ 477.788051] ? rcu_blocking_is_gp+0x90/0x90 [ 477.792379] ? trace_hardirqs_on+0x67/0x220 [ 477.796694] ? kasan_check_read+0x11/0x20 [ 477.800842] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 477.805979] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 477.811546] ? __kthread_parkme+0xfb/0x1b0 [ 477.815772] kthread+0x354/0x420 [ 477.819128] ? rcu_blocking_is_gp+0x90/0x90 [ 477.823456] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 477.828982] ret_from_fork+0x24/0x30 [ 477.832716] NMI backtrace for cpu 1 [ 477.836422] CPU: 1 PID: 7444 Comm: kworker/1:1 Not tainted 4.19.71 #0 [ 477.842983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 477.852491] Workqueue: ipv6_addrconf addrconf_dad_work [ 477.857754] Call Trace: [ 477.860322] [ 477.862508] dump_stack+0x172/0x1f0 [ 477.866127] nmi_cpu_backtrace.cold+0x63/0xa4 [ 477.870645] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 477.875566] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 477.880849] arch_trigger_cpumask_backtrace+0x14/0x20 [ 477.886040] rcu_dump_cpu_stacks+0x189/0x1d5 [ 477.890470] ? wake_up_process+0x10/0x20 [ 477.894524] rcu_check_callbacks.cold+0x5e3/0xd90 [ 477.899356] ? trace_hardirqs_off+0x62/0x220 [ 477.903787] update_process_times+0x32/0x80 [ 477.908117] tick_sched_handle+0xa2/0x190 [ 477.912263] tick_sched_timer+0x47/0x130 [ 477.916313] __hrtimer_run_queues+0x33b/0xdc0 [ 477.920807] ? tick_sched_do_timer+0x1b0/0x1b0 [ 477.925381] ? hrtimer_fixup_activate+0x30/0x30 [ 477.930058] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 477.935063] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 477.940420] hrtimer_interrupt+0x314/0x770 [ 477.944658] smp_apic_timer_interrupt+0x111/0x550 [ 477.949493] apic_timer_interrupt+0xf/0x20 [ 477.953711] [ 477.955940] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x9/0x20 [ 477.961988] Code: 00 55 48 89 f2 48 89 fe bf 06 00 00 00 48 89 e5 48 8b 4d 08 e8 18 ff ff ff 5d c3 66 0f 1f 44 00 00 55 40 0f b6 d6 40 0f b6 f7 01 00 00 00 48 89 e5 48 8b 4d 08 e8 f6 fe ff ff 5d c3 0f 1f 40 [ 477.980890] RSP: 0018:ffff888094e4ede8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 477.988597] RAX: 0000000000000001 RBX: ffff888095d7b078 RCX: ffffffff858e8489 [ 477.995853] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 [ 478.003122] RBP: ffff888094e4ee48 R08: ffff888097eea5c0 R09: 0000000000000009 [ 478.010398] R10: ffff888097eeafa8 R11: 00000000cb1a6f77 R12: dffffc0000000000 [ 478.017679] R13: ffff888095d7adc0 R14: 0000000000000001 R15: 0000000000000000 [ 478.025029] ? hhf_dequeue+0xb9/0xa00 [ 478.028830] ? hhf_dequeue+0x5b6/0xa00 [ 478.032748] __qdisc_run+0x1e7/0x1960 [ 478.036585] __dev_queue_xmit+0x165c/0x2fe0 [ 478.040919] ? netdev_pick_tx+0x300/0x300 [ 478.045063] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 478.050637] ? br_nf_post_routing+0x780/0x12f0 [ 478.055229] ? br_forward_finish+0x235/0x400 [ 478.059632] ? find_held_lock+0x35/0x130 [ 478.063683] ? br_forward_finish+0x235/0x400 [ 478.068093] dev_queue_xmit+0x18/0x20 [ 478.071879] ? dev_queue_xmit+0x18/0x20 [ 478.075876] br_dev_queue_push_xmit+0x405/0x5d0 [ 478.080566] ? kasan_check_read+0x11/0x20 [ 478.084705] br_forward_finish+0xfa/0x400 [ 478.088844] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 478.093679] ? br_fdb_add.cold+0x8a/0x8a [ 478.097731] ? kasan_check_read+0x11/0x20 [ 478.101872] __br_forward+0x647/0xb30 [ 478.105662] ? br_forward_finish+0x400/0x400 [ 478.110061] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 478.114909] deliver_clone+0x61/0xc0 [ 478.118614] br_flood+0x4da/0x710 [ 478.122062] br_dev_xmit+0xeeb/0x1490 [ 478.125854] ? br_poll_controller+0x10/0x10 [ 478.130171] ? __lock_is_held+0xb6/0x140 [ 478.134235] dev_hard_start_xmit+0x1a5/0x980 [ 478.138712] ? check_preemption_disabled+0x48/0x290 [ 478.143723] __dev_queue_xmit+0x2704/0x2fe0 [ 478.148040] ? netdev_pick_tx+0x300/0x300 [ 478.152212] ? ip6_finish_output2+0xac0/0x2550 [ 478.156785] ? find_held_lock+0x35/0x130 [ 478.160833] ? ip6_finish_output2+0xb7f/0x2550 [ 478.165404] ? mark_held_locks+0xb1/0x100 [ 478.169546] dev_queue_xmit+0x18/0x20 [ 478.173469] ? dev_queue_xmit+0x18/0x20 [ 478.177524] neigh_resolve_output+0x5b7/0x980 [ 478.182151] ip6_finish_output2+0xb7f/0x2550 [ 478.186595] ? ip6_mtu+0x2e6/0x460 [ 478.190128] ? ip6_forward_finish+0x4d0/0x4d0 [ 478.194618] ? lock_downgrade+0x810/0x810 [ 478.198763] ? kasan_check_read+0x11/0x20 [ 478.202913] ip6_finish_output+0x574/0xbe0 [ 478.207143] ? ip6_finish_output+0x574/0xbe0 [ 478.211546] ip6_output+0x235/0x7c0 [ 478.215163] ? ip6_finish_output+0xbe0/0xbe0 [ 478.219563] ? ip6_fragment+0x3770/0x3770 [ 478.223704] ndisc_send_skb+0xf3b/0x1460 [ 478.227757] ? nf_hook.constprop.0+0x560/0x560 [ 478.232383] ? skb_set_owner_w+0x24c/0x360 [ 478.236625] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 478.241641] ndisc_send_ns+0x3a9/0x850 [ 478.245518] ? mark_held_locks+0xb1/0x100 [ 478.249660] ? ndisc_netdev_event+0x470/0x470 [ 478.254159] ? lockdep_hardirqs_on+0x415/0x5d0 [ 478.258731] ? addrconf_dad_work+0xac4/0x1150 [ 478.263216] ? trace_hardirqs_on+0x67/0x220 [ 478.267524] ? addrconf_dad_work+0xac4/0x1150 [ 478.272014] addrconf_dad_work+0xb88/0x1150 [ 478.276327] ? addrconf_dad_completed+0xbb0/0xbb0 [ 478.281161] process_one_work+0x989/0x1750 [ 478.285387] ? pwq_dec_nr_in_flight+0x320/0x320 [ 478.290039] ? lock_acquire+0x16f/0x3f0 [ 478.294001] ? kasan_check_write+0x14/0x20 [ 478.298226] ? do_raw_spin_lock+0xc8/0x240 [ 478.302467] worker_thread+0x98/0xe40 [ 478.306253] ? trace_hardirqs_on+0x67/0x220 [ 478.310572] kthread+0x354/0x420 [ 478.313936] ? process_one_work+0x1750/0x1750 [ 478.318417] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 478.323943] ret_from_fork+0x24/0x30