[ 71.797463][ T26] audit: type=1800 audit(1568444728.998:32): pid=10233 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 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. [ 72.476037][ T26] audit: type=1800 audit(1568444729.748:33): pid=10233 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 '10.128.15.204' (ECDSA) to the list of known hosts. syzkaller login: [ 86.065095][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 86.065108][ T26] audit: type=1400 audit(1568444743.338:36): avc: denied { map } for pid=10419 comm="syz-executor652" path="/root/syz-executor652582699" 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 [ 86.101021][T10420] IPVS: ftp: loaded support on port[0] = 21 [ 86.149780][T10420] chnl_net:caif_netlink_parms(): no params data found [ 86.173077][T10420] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.180622][T10420] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.188215][T10420] device bridge_slave_0 entered promiscuous mode [ 86.195420][T10420] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.202556][T10420] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.210183][T10420] device bridge_slave_1 entered promiscuous mode [ 86.224119][T10420] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 86.234876][T10420] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 86.251346][T10420] team0: Port device team_slave_0 added [ 86.258126][T10420] team0: Port device team_slave_1 added [ 86.339094][T10420] device hsr_slave_0 entered promiscuous mode [ 86.408084][T10420] device hsr_slave_1 entered promiscuous mode [ 86.482977][T10420] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.490093][T10420] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.497466][T10420] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.504582][T10420] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.529662][T10420] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.543230][T10420] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.550387][T10422] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 86.559186][T10422] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.566828][T10422] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.574598][T10422] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 86.588526][ T3569] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 86.597081][ T3569] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.604284][ T3569] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.611849][ T3569] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 86.620670][ T3569] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.627978][ T3569] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.640249][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 86.649251][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 86.659925][ T3569] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 86.672655][T10420] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network executing program [ 86.683912][T10420] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 86.695586][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 86.704168][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 86.712994][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 86.727838][T10420] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 191.767330][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 191.774081][ C0] rcu: 0-...!: (10500 ticks this GP) idle=b9e/0/0x3 softirq=10863/10863 fqs=0 [ 191.783084][ C0] (t=10501 jiffies g=10249 q=77) [ 191.788093][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g10249 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 191.799425][ C0] rcu: RCU grace-period kthread stack dump: [ 191.805411][ C0] rcu_preempt I29040 10 2 0x80004000 [ 191.812248][ C0] Call Trace: [ 191.815650][ C0] __schedule+0x755/0x1580 [ 191.820048][ C0] ? __sched_text_start+0x8/0x8 [ 191.824885][ C0] schedule+0xd9/0x260 [ 191.828934][ C0] schedule_timeout+0x486/0xc50 [ 191.833770][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 191.838693][ C0] ? usleep_range+0x170/0x170 [ 191.843350][ C0] ? trace_hardirqs_on+0x67/0x240 [ 191.848355][ C0] ? __kasan_check_read+0x11/0x20 [ 191.853622][ C0] ? __next_timer_interrupt+0x1a0/0x1a0 [ 191.859161][ C0] ? swake_up_one+0x60/0x60 [ 191.863645][ C0] ? trace_hardirqs_on+0x67/0x240 [ 191.868651][ C0] rcu_gp_kthread+0x9b2/0x18c0 [ 191.873399][ C0] ? rcu_barrier+0x310/0x310 [ 191.877967][ C0] ? trace_hardirqs_on+0x67/0x240 [ 191.882969][ C0] ? __kasan_check_read+0x11/0x20 [ 191.887977][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 191.894377][ C0] ? __kthread_parkme+0x108/0x1c0 [ 191.899490][ C0] ? __kasan_check_read+0x11/0x20 [ 191.904582][ C0] kthread+0x361/0x430 [ 191.908632][ C0] ? rcu_barrier+0x310/0x310 [ 191.913309][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 191.919530][ C0] ret_from_fork+0x24/0x30 [ 191.924152][ C0] NMI backtrace for cpu 0 [ 191.928474][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0-rc8+ #0 [ 191.935574][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 191.945608][ C0] Call Trace: [ 191.948870][ C0] [ 191.951711][ C0] dump_stack+0x172/0x1f0 [ 191.956070][ C0] nmi_cpu_backtrace.cold+0x70/0xb2 [ 191.961248][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 191.967470][ C0] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 191.973110][ C0] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 191.979071][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 191.985040][ C0] rcu_dump_cpu_stacks+0x183/0x1cf [ 191.990142][ C0] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 191.995669][ C0] ? raise_softirq+0x138/0x340 [ 192.000550][ C0] update_process_times+0x32/0x80 [ 192.005579][ C0] tick_sched_handle+0xa2/0x190 [ 192.011046][ C0] tick_sched_timer+0x53/0x140 [ 192.015791][ C0] __hrtimer_run_queues+0x364/0xe40 [ 192.020972][ C0] ? tick_sched_do_timer+0x1b0/0x1b0 [ 192.026239][ C0] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 192.031766][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 192.037474][ C0] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 192.043519][ C0] hrtimer_interrupt+0x314/0x770 [ 192.048445][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 192.054018][ C0] apic_timer_interrupt+0xf/0x20 [ 192.059029][ C0] RIP: 0010:__list_add_valid+0x48/0xa0 [ 192.064470][ C0] Code: fa 48 83 ec 08 48 c1 ea 03 80 3c 02 00 75 52 49 8b 54 24 08 48 39 f2 0f 85 5a 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f2 <48> c1 ea 03 80 3c 02 00 75 3c 48 8b 16 4c 39 e2 0f 85 5f 01 00 00 [ 192.084748][ C0] RSP: 0018:ffff8880ae8095a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 192.093270][ C0] RAX: dffffc0000000000 RBX: ffff8880a2083538 RCX: ffffffff85c67051 [ 192.101791][ C0] RDX: ffff8880a20835d0 RSI: ffff8880a20835d0 RDI: ffff8880a20835d8 [ 192.114786][ C0] RBP: ffff8880ae8095b8 R08: ffffffff88c7a1c0 R09: 0000000000000000 [ 192.122746][ C0] R10: fffffbfff134afaf R11: ffffffff88c7a1c0 R12: ffff8880a20835d0 [ 192.130874][ C0] R13: ffff8880a2083538 R14: ffff8880a20835d8 R15: ffff8880a20835d0 [ 192.139394][ C0] ? apic_timer_interrupt+0xa/0x20 [ 192.144486][ C0] ? hhf_dequeue+0x5d1/0xa20 [ 192.149067][ C0] hhf_dequeue+0x66d/0xa20 [ 192.153466][ C0] __qdisc_run+0x1e7/0x19d0 [ 192.157950][ C0] ? dev_queue_xmit+0x18/0x20 [ 192.162628][ C0] __dev_queue_xmit+0x16f1/0x3650 [ 192.167667][ C0] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 192.172940][ C0] ? __ip6_finish_output+0x444/0xa50 [ 192.178295][ C0] ? ipv6_chk_mcast_addr+0x315/0x6f0 [ 192.183570][ C0] ? lock_downgrade+0x920/0x920 [ 192.188402][ C0] ? lock_acquire+0x190/0x410 [ 192.193066][ C0] ? __ip6_finish_output+0x444/0xa50 [ 192.198334][ C0] dev_queue_xmit+0x18/0x20 [ 192.202815][ C0] ? dev_queue_xmit+0x18/0x20 [ 192.207504][ C0] ip6_finish_output2+0xf58/0x2520 [ 192.212601][ C0] ? ip6_forward_finish+0x530/0x530 [ 192.217791][ C0] ? ip6_mtu+0x16f/0x460 [ 192.222039][ C0] __ip6_finish_output+0x444/0xa50 [ 192.227133][ C0] ? __ip6_finish_output+0x444/0xa50 [ 192.232402][ C0] ip6_finish_output+0x38/0x1f0 [ 192.237233][ C0] ip6_output+0x235/0x7c0 [ 192.241554][ C0] ? ip6_finish_output+0x1f0/0x1f0 [ 192.246645][ C0] ? __ip6_finish_output+0xa50/0xa50 [ 192.251921][ C0] ? icmp6_dst_alloc+0x432/0x660 [ 192.256836][ C0] mld_sendpack+0x9c7/0xea0 [ 192.261321][ C0] ? nf_hook.constprop.0+0x560/0x560 [ 192.266586][ C0] ? mld_ifc_timer_expire+0x437/0x8a0 [ 192.271935][ C0] ? __local_bh_enable_ip+0x15a/0x270 [ 192.277289][ C0] mld_ifc_timer_expire+0x449/0x8a0 [ 192.282470][ C0] call_timer_fn+0x1ac/0x780 [ 192.287139][ C0] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 192.292582][ C0] ? msleep_interruptible+0x150/0x150 [ 192.297937][ C0] ? trace_hardirqs_on+0x67/0x240 [ 192.302944][ C0] ? __kasan_check_read+0x11/0x20 [ 192.307957][ C0] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 192.313317][ C0] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 192.318679][ C0] run_timer_softirq+0x697/0x17a0 [ 192.323695][ C0] ? add_timer+0x930/0x930 [ 192.328099][ C0] ? kvm_clock_read+0x18/0x30 [ 192.332756][ C0] ? kvm_sched_clock_read+0x9/0x20 [ 192.337858][ C0] ? sched_clock+0x2e/0x50 [ 192.342261][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 192.347354][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 192.353578][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 192.359804][ C0] __do_softirq+0x262/0x98c [ 192.364386][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 192.369222][ C0] irq_exit+0x19b/0x1e0 [ 192.373356][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 192.378891][ C0] apic_timer_interrupt+0xf/0x20 [ 192.383804][ C0] [ 192.386765][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 192.392338][ C0] 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 [ 192.412023][ C0] RSP: 0018:ffffffff88c07ce8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 192.420501][ C0] RAX: 1ffffffff11a5e8d RBX: ffffffff88c7a1c0 RCX: 1ffffffff134b5ee [ 192.428464][ C0] RDX: dffffc0000000000 RSI: ffffffff8177f15e RDI: ffffffff873e150c [ 192.436441][ C0] RBP: ffffffff88c07d18 R08: ffffffff88c7a1c0 R09: fffffbfff118f439 [ 192.444565][ C0] R10: fffffbfff118f438 R11: ffffffff88c7a1c7 R12: dffffc0000000000 [ 192.452517][ C0] R13: ffffffff89a57d78 R14: 0000000000000000 R15: 0000000000000000 [ 192.460623][ C0] ? trace_hardirqs_on+0x5e/0x240 [ 192.465629][ C0] ? default_idle+0x1c/0x360 [ 192.470199][ C0] ? default_idle+0x4e/0x360 [ 192.474776][ C0] arch_cpu_idle+0xa/0x10 [ 192.479085][ C0] default_idle_call+0x84/0xb0 [ 192.484003][ C0] do_idle+0x413/0x760 [ 192.488233][ C0] ? arch_cpu_idle_exit+0x80/0x80 [ 192.493249][ C0] ? trace_hardirqs_on+0x67/0x240 [ 192.498258][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 192.504491][ C0] ? debug_smp_processor_id+0x3c/0x214 [ 192.510629][ C0] cpu_startup_entry+0x1b/0x20 [ 192.515390][ C0] rest_init+0x245/0x37b [ 192.519632][ C0] arch_call_rest_init+0xe/0x1b [ 192.524499][ C0] start_kernel+0x912/0x951 [ 192.528982][ C0] ? mem_encrypt_init+0xb/0xb [ 192.533652][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 192.540046][ C0] ? x86_family+0x41/0x50 [ 192.544451][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 192.550673][ C0] x86_64_start_reservations+0x29/0x2b [ 192.556110][ C0] x86_64_start_kernel+0x77/0x7b [ 192.561031][ C0] secondary_startup_64+0xa4/0xb0