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. [ 36.856266] audit: type=1800 audit(1568854966.996:33): pid=7327 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 [ 36.881119] audit: type=1800 audit(1568854966.996:34): pid=7327 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: [ 41.635879] audit: type=1400 audit(1568854971.776:35): avc: denied { map } for pid=7504 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 '10.128.0.245' (ECDSA) to the list of known hosts. [ 48.169159] audit: type=1400 audit(1568854978.306:36): avc: denied { map } for pid=7516 comm="syz-executor364" path="/root/syz-executor364171671" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 48.194968] IPVS: ftp: loaded support on port[0] = 21 [ 48.250330] chnl_net:caif_netlink_parms(): no params data found [ 48.282709] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.289487] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.296830] device bridge_slave_0 entered promiscuous mode [ 48.304425] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.310794] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.317952] device bridge_slave_1 entered promiscuous mode [ 48.333596] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.342776] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.358724] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.366703] team0: Port device team_slave_0 added [ 48.372131] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.379254] team0: Port device team_slave_1 added [ 48.384604] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.392379] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.453175] device hsr_slave_0 entered promiscuous mode [ 48.491549] device hsr_slave_1 entered promiscuous mode [ 48.541860] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.548932] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.562723] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.569153] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.576063] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.582448] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.611798] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.617977] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.625932] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.634330] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.643129] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.650077] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.657941] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.668827] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 48.675349] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.685507] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.693088] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.699409] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.708162] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.715876] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.722251] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.736526] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.744285] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.754535] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.766430] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.776978] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.788163] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.794612] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.802422] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.809812] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 48.820951] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.832210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 153.861228] rcu: INFO: rcu_preempt self-detected stall on CPU [ 153.867370] rcu: 0-...!: (1 GPs behind) idle=912/1/0x4000000000000002 softirq=9357/9358 fqs=8 [ 153.876399] rcu: (t=10500 jiffies g=4701 q=23) [ 153.881153] rcu: rcu_preempt kthread starved for 10484 jiffies! g4701 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 153.891706] rcu: RCU grace-period kthread stack dump: [ 153.896883] rcu_preempt I29504 10 2 0x80000000 [ 153.902506] Call Trace: [ 153.905092] __schedule+0x866/0x1dc0 [ 153.908896] ? pci_mmcfg_check_reserved+0x170/0x170 [ 153.913910] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 153.919000] ? lockdep_hardirqs_on+0x415/0x5d0 [ 153.923574] ? trace_hardirqs_on+0x67/0x220 [ 153.927884] schedule+0x92/0x1c0 [ 153.931236] schedule_timeout+0x4db/0xfc0 [ 153.935461] ? usleep_range+0x170/0x170 [ 153.939422] ? trace_hardirqs_on+0x67/0x220 [ 153.943731] ? kasan_check_read+0x11/0x20 [ 153.947869] ? __next_timer_interrupt+0x1a0/0x1a0 [ 153.952710] ? prepare_to_swait_exclusive+0x120/0x120 [ 153.957894] rcu_gp_kthread+0xd5c/0x2190 [ 153.962099] ? rcu_blocking_is_gp+0x90/0x90 [ 153.966442] ? trace_hardirqs_on+0x67/0x220 [ 153.970765] ? kasan_check_read+0x11/0x20 [ 153.975456] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 153.980573] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 153.986638] ? __kthread_parkme+0xfb/0x1b0 [ 153.990876] kthread+0x354/0x420 [ 153.994241] ? rcu_blocking_is_gp+0x90/0x90 [ 153.998555] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 154.004186] ret_from_fork+0x24/0x30 [ 154.007930] NMI backtrace for cpu 0 [ 154.011549] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.73 #0 [ 154.017868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 154.027217] Call Trace: [ 154.029807] [ 154.031965] dump_stack+0x172/0x1f0 [ 154.035597] nmi_cpu_backtrace.cold+0x63/0xa4 [ 154.040104] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 154.045024] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 154.050309] arch_trigger_cpumask_backtrace+0x14/0x20 [ 154.056294] rcu_dump_cpu_stacks+0x189/0x1d5 [ 154.060784] ? wake_up_process+0x10/0x20 [ 154.064884] rcu_check_callbacks.cold+0x5e3/0xd90 [ 154.069720] ? trace_hardirqs_off+0x62/0x220 [ 154.074131] update_process_times+0x32/0x80 [ 154.078444] tick_sched_handle+0xa2/0x190 [ 154.082582] tick_sched_timer+0x47/0x130 [ 154.086635] __hrtimer_run_queues+0x33b/0xdc0 [ 154.091120] ? tick_sched_do_timer+0x1b0/0x1b0 [ 154.095705] ? hrtimer_fixup_activate+0x30/0x30 [ 154.100363] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 154.105717] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 154.111075] hrtimer_interrupt+0x314/0x770 [ 154.115310] smp_apic_timer_interrupt+0x111/0x550 [ 154.120187] apic_timer_interrupt+0xf/0x20 [ 154.124405] [ 154.126646] RIP: 0010:__list_del_entry_valid+0xb1/0xf5 [ 154.131913] Code: 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <75> 24 49 8b 55 08 4c 39 f2 0f 85 aa 00 00 00 41 5c b8 01 00 00 00 [ 154.150799] RSP: 0018:ffff8880aa236970 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 154.158498] RAX: dffffc0000000000 RBX: ffff888088fe9978 RCX: ffffffff858eb8e9 [ 154.166363] RDX: 1ffff110111fd343 RSI: ffffffff858ebd9b RDI: ffff888088fe9a18 [ 154.173635] RBP: ffff8880aa236988 R08: ffff8880aa226240 R09: 0000000000000006 [ 154.180891] R10: ffff8880aa226bb0 R11: 0000000032e66a09 R12: ffff888088fe9a10 [ 154.188158] R13: ffff888088fe9a10 R14: ffff888088fe9978 R15: 0000000000000000 [ 154.195444] ? hhf_dequeue+0xb9/0xa00 [ 154.199249] ? hhf_dequeue+0x56b/0xa00 [ 154.203150] hhf_dequeue+0x5aa/0xa00 [ 154.206870] __qdisc_run+0x1e7/0x1960 [ 154.210670] __dev_queue_xmit+0x165c/0x2fe0 [ 154.214980] ? deliver_clone+0x61/0xc0 [ 154.218858] ? br_flood+0x5fa/0x710 [ 154.222487] ? br_handle_frame_finish+0xf72/0x1510 [ 154.227421] ? netdev_pick_tx+0x300/0x300 [ 154.231558] ? run_ksoftirqd+0x8e/0x110 [ 154.235531] ? smpboot_thread_fn+0x6a3/0xa30 [ 154.239938] ? kthread+0x354/0x420 [ 154.243473] ? entry_SYSCALL_64_after_hwframe+0xbc/0xbe [ 154.248854] ? __lock_is_held+0xb6/0x140 [ 154.252912] dev_queue_xmit+0x18/0x20 [ 154.256704] ? dev_queue_xmit+0x18/0x20 [ 154.260668] br_dev_queue_push_xmit+0x405/0x5d0 [ 154.265938] ? br_nf_dev_queue_xmit+0x38c/0x1610 [ 154.270772] br_nf_dev_queue_xmit+0x365/0x1610 [ 154.275525] br_nf_post_routing+0x76f/0x12f0 [ 154.279939] ? find_inlist_lock.constprop.0+0x22a/0x230 [ 154.285292] ? br_nf_dev_queue_xmit+0x1610/0x1610 [ 154.290133] ? ipv6_skip_exthdr+0x5b0/0x5c0 [ 154.294448] ? br_nf_pre_routing_finish_bridge+0xaa0/0xaa0 [ 154.300067] nf_hook_slow+0xbc/0x1e0 [ 154.303775] br_forward_finish+0x215/0x400 [ 154.308000] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 154.312836] ? br_fdb_add.cold+0x8a/0x8a [ 154.316884] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 154.321888] ? nf_hook_slow+0xf0/0x1e0 [ 154.325766] br_nf_hook_thresh+0x2e9/0x370 [ 154.330273] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 154.335107] ? setup_pre_routing+0x470/0x470 [ 154.339506] ? find_held_lock+0x35/0x130 [ 154.343559] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 154.348396] br_nf_forward_finish+0x356/0x700 [ 154.352882] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 154.357716] br_nf_forward_ip+0x6b4/0x17c0 [ 154.361947] ? br_nf_forward_finish+0x700/0x700 [ 154.366606] ? refcount_inc_not_zero_checked+0x147/0x200 [ 154.372060] ? br_nf_hook_thresh+0x370/0x370 [ 154.376459] nf_hook_slow+0xbc/0x1e0 [ 154.380164] __br_forward+0x393/0xb30 [ 154.383955] ? br_forward_finish+0x400/0x400 [ 154.388366] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 154.393810] deliver_clone+0x61/0xc0 [ 154.397516] br_flood+0x5fa/0x710 [ 154.401229] br_handle_frame_finish+0xf72/0x1510 [ 154.405987] ? br_handle_local_finish+0x20/0x20 [ 154.410644] ? __lock_is_held+0xb6/0x140 [ 154.414709] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 154.419711] ? nf_hook_slow+0xf0/0x1e0 [ 154.423591] br_nf_hook_thresh+0x2e9/0x370 [ 154.427814] ? br_handle_local_finish+0x20/0x20 [ 154.432475] ? setup_pre_routing+0x470/0x470 [ 154.436874] ? br_handle_local_finish+0x20/0x20 [ 154.441550] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 154.446728] br_nf_pre_routing_finish_ipv6+0x6ed/0xd70 [ 154.451990] ? br_handle_local_finish+0x20/0x20 [ 154.456648] ? kasan_check_read+0x11/0x20 [ 154.460797] br_nf_pre_routing_ipv6+0x4a5/0x8ca [ 154.465462] ? br_validate_ipv6+0xb90/0xb90 [ 154.469792] ? br_nf_pre_routing_finish.cold+0x11d/0x11d [ 154.475231] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 154.480755] ? skb_pull_rcsum+0x164/0x340 [ 154.484893] br_nf_pre_routing+0x1016/0x159c [ 154.489296] ? br_nf_pre_routing_finish+0x1960/0x1960 [ 154.494474] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 154.500013] ? ebt_broute+0x127/0x190 [ 154.503994] nf_hook_slow+0xbc/0x1e0 [ 154.507702] br_handle_frame+0x985/0x1480 [ 154.511840] ? br_handle_frame_finish+0x1510/0x1510 [ 154.516858] ? br_handle_local_finish+0x20/0x20 [ 154.521515] ? br_handle_frame_finish+0x1510/0x1510 [ 154.527216] __netif_receive_skb_core+0xac1/0x3570 [ 154.532131] ? __lock_acquire+0x6ee/0x49c0 [ 154.536351] ? __kasan_slab_free+0x102/0x150 [ 154.540744] ? kasan_slab_free+0xe/0x10 [ 154.544712] ? kmem_cache_free+0x86/0x260 [ 154.548849] ? netif_receive_skb+0x2d0/0x2d0 [ 154.553250] ? mark_held_locks+0x100/0x100 [ 154.557472] ? __lock_acquire+0x6ee/0x49c0 [ 154.561695] ? cpuacct_charge+0x1db/0x360 [ 154.565829] ? process_backlog+0x482/0x7a0 [ 154.570054] __netif_receive_skb_one_core+0xa8/0x1a0 [ 154.575154] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 154.580419] ? __netif_receive_skb_core+0x3570/0x3570 [ 154.585598] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 154.591119] ? check_preemption_disabled+0x48/0x290 [ 154.596131] ? lock_acquire+0x16f/0x3f0 [ 154.600094] __netif_receive_skb+0x2c/0x1d0 [ 154.604404] process_backlog+0x23a/0x7a0 [ 154.608460] ? net_rx_action+0x27b/0x1070 [ 154.612596] ? lockdep_hardirqs_on+0x19b/0x5d0 [ 154.617170] net_rx_action+0x4f5/0x1070 [ 154.621135] ? napi_complete_done+0x500/0x500 [ 154.625615] ? sched_clock+0x2e/0x50 [ 154.629323] __do_softirq+0x25c/0x921 [ 154.633115] ? pci_mmcfg_check_reserved+0x170/0x170 [ 154.638124] ? takeover_tasklets+0x7b0/0x7b0 [ 154.642522] run_ksoftirqd+0x8e/0x110 [ 154.646310] smpboot_thread_fn+0x6a3/0xa30 [ 154.650533] ? sort_range+0x30/0x30 [ 154.654147] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 154.659669] ? __kthread_parkme+0xfb/0x1b0 [ 154.663890] kthread+0x354/0x420 [ 154.667241] ? sort_range+0x30/0x30 [ 154.670850] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 154.676372] ret_from_fork+0x24/0x30