[....] Starting periodic command[ 65.541493][ T26] audit: type=1800 audit(1568485285.826:32): pid=9994 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0
scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Starting mcstransd:
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 66.018021][ T26] audit: type=1800 audit(1568485286.296:33): pid=9994 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
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts.
syzkaller login: [ 297.897572][ T26] kauditd_printk_skb: 2 callbacks suppressed
[ 297.897585][ T26] audit: type=1400 audit(1568485518.176:36): avc: denied { map } for pid=10186 comm="syz-executor041" path="/root/syz-executor041981455" 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
[ 297.932445][T10187] IPVS: ftp: loaded support on port[0] = 21
[ 297.979325][T10187] chnl_net:caif_netlink_parms(): no params data found
[ 298.000252][T10187] bridge0: port 1(bridge_slave_0) entered blocking state
[ 298.007449][T10187] bridge0: port 1(bridge_slave_0) entered disabled state
[ 298.016016][T10187] device bridge_slave_0 entered promiscuous mode
[ 298.023277][T10187] bridge0: port 2(bridge_slave_1) entered blocking state
[ 298.030379][T10187] bridge0: port 2(bridge_slave_1) entered disabled state
[ 298.037805][T10187] device bridge_slave_1 entered promiscuous mode
[ 298.051713][T10187] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 298.061940][T10187] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 298.077166][T10187] team0: Port device team_slave_0 added
[ 298.084129][T10187] team0: Port device team_slave_1 added
[ 298.130310][T10187] device hsr_slave_0 entered promiscuous mode
[ 298.179027][T10187] device hsr_slave_1 entered promiscuous mode
[ 298.253814][T10187] bridge0: port 2(bridge_slave_1) entered blocking state
[ 298.261091][T10187] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 298.268364][T10187] bridge0: port 1(bridge_slave_0) entered blocking state
[ 298.275438][T10187] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 298.299177][T10187] 8021q: adding VLAN 0 to HW filter on device bond0
[ 298.310932][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 298.329607][ T2895] bridge0: port 1(bridge_slave_0) entered disabled state
[ 298.347269][ T2895] bridge0: port 2(bridge_slave_1) entered disabled state
[ 298.354975][ T2895] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 298.364987][T10187] 8021q: adding VLAN 0 to HW filter on device team0
[ 298.374230][T10189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 298.382841][T10189] bridge0: port 1(bridge_slave_0) entered blocking state
[ 298.390099][T10189] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 298.409642][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 298.418061][ T12] bridge0: port 2(bridge_slave_1) entered blocking state
[ 298.425907][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 298.433711][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 298.442291][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 298.450579][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
executing program
[ 298.458582][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 298.467345][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 298.476151][T10187] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 298.490909][T10187] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 403.518609][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 403.525235][ C1] rcu: 1-...!: (10500 ticks this GP) idle=092/0/0x3 softirq=11853/11853 fqs=0
[ 403.534227][ C1] (t=10500 jiffies g=9697 q=195)
[ 403.539247][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g9697 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
[ 403.550490][ C1] rcu: RCU grace-period kthread stack dump:
[ 403.556441][ C1] rcu_preempt I29520 10 2 0x80004000
[ 403.562751][ C1] Call Trace:
[ 403.566097][ C1] __schedule+0x755/0x1580
[ 403.570494][ C1] ? __sched_text_start+0x8/0x8
[ 403.575324][ C1] schedule+0xd9/0x260
[ 403.579371][ C1] schedule_timeout+0x486/0xc50
[ 403.584201][ C1] ? rwlock_bug.part.0+0x90/0x90
[ 403.589120][ C1] ? usleep_range+0x170/0x170
[ 403.593772][ C1] ? trace_hardirqs_on+0x67/0x240
[ 403.598773][ C1] ? __kasan_check_read+0x11/0x20
[ 403.603776][ C1] ? __next_timer_interrupt+0x1a0/0x1a0
[ 403.609296][ C1] ? swake_up_one+0x60/0x60
[ 403.613773][ C1] ? trace_hardirqs_on+0x67/0x240
[ 403.618776][ C1] rcu_gp_kthread+0x9b2/0x18c0
[ 403.623517][ C1] ? rcu_barrier+0x310/0x310
[ 403.628079][ C1] ? trace_hardirqs_on+0x67/0x240
[ 403.633078][ C1] ? __kasan_check_read+0x11/0x20
[ 403.638082][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 403.644310][ C1] ? __kthread_parkme+0x108/0x1c0
[ 403.649311][ C1] ? __kasan_check_read+0x11/0x20
[ 403.654312][ C1] kthread+0x361/0x430
[ 403.658356][ C1] ? rcu_barrier+0x310/0x310
[ 403.662921][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20
[ 403.669142][ C1] ret_from_fork+0x24/0x30
[ 403.673560][ C1] NMI backtrace for cpu 1
[ 403.677871][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc8+ #0
[ 403.684953][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 403.694981][ C1] Call Trace:
[ 403.698243][ C1]
[ 403.701121][ C1] dump_stack+0x172/0x1f0
[ 403.705433][ C1] nmi_cpu_backtrace.cold+0x70/0xb2
[ 403.710610][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 403.716826][ C1] ? lapic_can_unplug_cpu.cold+0x45/0x45
[ 403.722433][ C1] nmi_trigger_cpumask_backtrace+0x23b/0x28b
[ 403.728393][ C1] arch_trigger_cpumask_backtrace+0x14/0x20
[ 403.734262][ C1] rcu_dump_cpu_stacks+0x183/0x1cf
[ 403.739356][ C1] rcu_sched_clock_irq.cold+0x4dd/0xc13
[ 403.744881][ C1] ? raise_softirq+0x138/0x340
[ 403.749621][ C1] update_process_times+0x32/0x80
[ 403.754622][ C1] tick_sched_handle+0xa2/0x190
[ 403.759456][ C1] tick_sched_timer+0x53/0x140
[ 403.764197][ C1] __hrtimer_run_queues+0x364/0xe40
[ 403.769373][ C1] ? tick_sched_do_timer+0x1b0/0x1b0
[ 403.774635][ C1] ? hrtimer_start_range_ns+0xcb0/0xcb0
[ 403.780157][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20
[ 403.785848][ C1] ? ktime_get_update_offsets_now+0x2d3/0x440
[ 403.791890][ C1] hrtimer_interrupt+0x314/0x770
[ 403.796845][ C1] smp_apic_timer_interrupt+0x160/0x610
[ 403.802365][ C1] apic_timer_interrupt+0xf/0x20
[ 403.807303][ C1] RIP: 0010:hhf_dequeue+0x96/0xa20
[ 403.812407][ C1] Code: 48 39 c6 0f 84 8c 04 00 00 e8 06 0a ac fb 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 0f 85 6d 07 00 00 49 8b 1e 48 8d 7b 10 48 89 f8 <48> c1 e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e 69 07 00 00 44
[ 403.832098][ C1] RSP: 0018:ffff8880ae909038 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 403.840494][ C1] RAX: ffff88808d1cfe48 RBX: ffff88808d1cfe38 RCX: ffffffff85c670f9
[ 403.848526][ C1] RDX: 0000000000000100 RSI: ffffffff85c66afa RDI: ffff88808d1cfe48
[ 403.856732][ C1] RBP: ffff8880ae909088 R08: ffff8880a98d6340 R09: 0000000000000000
[ 403.864686][ C1] R10: fffffbfff134afaf R11: ffff8880a98d6340 R12: dffffc0000000000
[ 403.872656][ C1] R13: ffff88808d1cfb40 R14: ffff88808d1cfed0 R15: ffff88808d1cfed0
[ 403.880634][ C1] ? apic_timer_interrupt+0xa/0x20
[ 403.885729][ C1] ? hhf_dequeue+0x679/0xa20
[ 403.890300][ C1] ? hhf_dequeue+0x7a/0xa20
[ 403.894783][ C1] ? hhf_dequeue+0x7a/0xa20
[ 403.899341][ C1] __qdisc_run+0x1e7/0x19d0
[ 403.903852][ C1] ? dev_queue_xmit+0x18/0x20
[ 403.908514][ C1] __dev_queue_xmit+0x16f1/0x3650
[ 403.913517][ C1] ? __local_bh_enable_ip+0x15a/0x270
[ 403.918869][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0
[ 403.924131][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[ 403.930374][ C1] ? br_nf_post_routing+0xd73/0x1d30
[ 403.935660][ C1] ? br_forward_finish+0x235/0x400
[ 403.940838][ C1] ? __kasan_check_read+0x11/0x20
[ 403.945839][ C1] ? __dev_queue_xmit+0x2b15/0x3650
[ 403.951015][ C1] dev_queue_xmit+0x18/0x20
[ 403.955493][ C1] ? dev_queue_xmit+0x18/0x20
[ 403.960145][ C1] br_dev_queue_push_xmit+0x3f3/0x5c0
[ 403.965628][ C1] ? nf_hook_slow+0xf0/0x1e0
[ 403.970196][ C1] br_forward_finish+0xfa/0x400
[ 403.975021][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0
[ 403.980542][ C1] ? br_fdb_add.cold+0x8c/0x8c
[ 403.985286][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20
[ 403.990981][ C1] ? nf_hook_slow+0xf0/0x1e0
[ 403.995547][ C1] __br_forward+0x641/0xb00
[ 404.000025][ C1] ? br_forward_finish+0x400/0x400
[ 404.005113][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0
[ 404.010643][ C1] deliver_clone+0x61/0xc0
[ 404.015037][ C1] maybe_deliver+0x2c7/0x390
[ 404.019605][ C1] br_flood+0x13a/0x3d0
[ 404.023772][ C1] br_dev_xmit+0x98c/0x15a0
[ 404.028254][ C1] ? br_poll_controller+0x10/0x10
[ 404.033255][ C1] ? netif_skb_features+0x6c2/0xb90
[ 404.038488][ C1] ? netdev_set_sb_channel+0xe0/0xe0
[ 404.043758][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 404.050024][ C1] ? validate_xmit_xfrm+0x43c/0xf10
[ 404.055210][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 404.061433][ C1] dev_hard_start_xmit+0x1a3/0x9c0
[ 404.066541][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 404.072791][ C1] __dev_queue_xmit+0x2b15/0x3650
[ 404.077803][ C1] ? __nf_conntrack_find_get+0xa97/0x13a0
[ 404.083503][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0
[ 404.088827][ C1] ? __ip_finish_output+0x5fc/0xb90
[ 404.094004][ C1] ? __kasan_check_read+0x11/0x20
[ 404.099019][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 404.105512][ C1] ? lock_downgrade+0x920/0x920
[ 404.110361][ C1] ? lock_acquire+0x190/0x410
[ 404.115029][ C1] ? __ip_finish_output+0x5fc/0xb90
[ 404.120222][ C1] dev_queue_xmit+0x18/0x20
[ 404.124702][ C1] ? dev_queue_xmit+0x18/0x20
[ 404.129356][ C1] ip_finish_output2+0x1726/0x2570
[ 404.134509][ C1] ? nf_ct_deliver_cached_events+0x23d/0x6e0
[ 404.140476][ C1] ? ip_frag_next+0x910/0x910
[ 404.145143][ C1] ? __kasan_check_read+0x11/0x20
[ 404.150149][ C1] __ip_finish_output+0x5fc/0xb90
[ 404.155163][ C1] ? __ip_finish_output+0x5fc/0xb90
[ 404.160339][ C1] ? audit_alloc_mark+0x420/0x500
[ 404.165341][ C1] ip_finish_output+0x38/0x1f0
[ 404.170084][ C1] ip_output+0x21f/0x640
[ 404.174310][ C1] ? ip_mc_output+0xf40/0xf40
[ 404.178963][ C1] ? __ip_finish_output+0xb90/0xb90
[ 404.184136][ C1] ? __kasan_check_read+0x11/0x20
[ 404.189139][ C1] ip_local_out+0xbb/0x190
[ 404.193647][ C1] igmpv3_sendpack+0x1b5/0x2c0
[ 404.198404][ C1] igmp_ifc_timer_expire+0x687/0xa00
[ 404.203671][ C1] ? call_timer_fn+0xe0/0x780
[ 404.208333][ C1] call_timer_fn+0x1ac/0x780
[ 404.212908][ C1] ? __ip_mc_dec_group+0x520/0x520
[ 404.218001][ C1] ? msleep_interruptible+0x150/0x150
[ 404.223350][ C1] ? trace_hardirqs_on+0x67/0x240
[ 404.228353][ C1] ? __kasan_check_read+0x11/0x20
[ 404.233359][ C1] ? __ip_mc_dec_group+0x520/0x520
[ 404.238448][ C1] ? __ip_mc_dec_group+0x520/0x520
[ 404.243540][ C1] run_timer_softirq+0x697/0x17a0
[ 404.248543][ C1] ? add_timer+0x930/0x930
[ 404.252938][ C1] ? kvm_clock_read+0x18/0x30
[ 404.257589][ C1] ? kvm_sched_clock_read+0x9/0x20
[ 404.262692][ C1] ? sched_clock+0x2e/0x50
[ 404.267087][ C1] ? sched_clock_cpu+0x1b/0x1b0
[ 404.271913][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 404.278130][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 404.284351][ C1] __do_softirq+0x262/0x98c
[ 404.288830][ C1] ? sched_clock_cpu+0x1b/0x1b0
[ 404.293663][ C1] irq_exit+0x19b/0x1e0
[ 404.297794][ C1] smp_apic_timer_interrupt+0x1a3/0x610
[ 404.303322][ C1] apic_timer_interrupt+0xf/0x20
[ 404.308231][ C1]
[ 404.311148][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 404.316501][ C1] Code: 88 63 6e fa eb 8a 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 24 0b 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 0b 4a 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 2e 23 22 fa e8 f9
[ 404.336080][ C1] RSP: 0018:ffff8880a98e7d68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 404.344467][ C1] RAX: 1ffffffff11a5e8d RBX: ffff8880a98d6340 RCX: 1ffffffff134b5ee
[ 404.352423][ C1] RDX: dffffc0000000000 RSI: ffffffff8177f15e RDI: ffffffff873e150c
[ 404.360369][ C1] RBP: ffff8880a98e7d98 R08: ffff8880a98d6340 R09: ffffed101531ac69
[ 404.368317][ C1] R10: ffffed101531ac68 R11: ffff8880a98d6347 R12: dffffc0000000000
[ 404.376265][ C1] R13: ffffffff89a57d78 R14: 0000000000000000 R15: 0000000000000001
[ 404.384222][ C1] ? trace_hardirqs_on+0x5e/0x240
[ 404.389220][ C1] ? default_idle+0x1c/0x360
[ 404.393786][ C1] ? default_idle+0x4e/0x360
[ 404.398352][ C1] arch_cpu_idle+0xa/0x10
[ 404.402675][ C1] default_idle_call+0x84/0xb0
[ 404.407420][ C1] do_idle+0x413/0x760
[ 404.411469][ C1] ? arch_cpu_idle_exit+0x80/0x80
[ 404.416469][ C1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0
[ 404.422251][ C1] ? complete+0x61/0x80
[ 404.426391][ C1] cpu_startup_entry+0x1b/0x20
[ 404.431139][ C1] start_secondary+0x315/0x430
[ 404.435888][ C1] ? set_cpu_sibling_map+0x2180/0x2180
[ 404.441327][ C1] secondary_startup_64+0xa4/0xb0