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. [ 40.551883] audit: type=1800 audit(1568407933.763:33): pid=7432 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 [ 40.573992] audit: type=1800 audit(1568407933.763:34): pid=7432 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: [ 45.439048] audit: type=1400 audit(1568407938.643:35): avc: denied { map } for pid=7605 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 '10.128.1.2' (ECDSA) to the list of known hosts. [ 181.648050] audit: type=1400 audit(1568408074.853:36): avc: denied { map } for pid=7617 comm="syz-executor228" path="/root/syz-executor228123641" 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 [ 181.673721] IPVS: ftp: loaded support on port[0] = 21 [ 181.731851] chnl_net:caif_netlink_parms(): no params data found [ 181.764749] bridge0: port 1(bridge_slave_0) entered blocking state [ 181.771626] bridge0: port 1(bridge_slave_0) entered disabled state [ 181.778983] device bridge_slave_0 entered promiscuous mode [ 181.786684] bridge0: port 2(bridge_slave_1) entered blocking state [ 181.793172] bridge0: port 2(bridge_slave_1) entered disabled state [ 181.800403] device bridge_slave_1 entered promiscuous mode [ 181.816443] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 181.825589] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 181.845699] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 181.853484] team0: Port device team_slave_0 added [ 181.858976] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 181.866413] team0: Port device team_slave_1 added [ 181.871770] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 181.879046] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 181.962320] device hsr_slave_0 entered promiscuous mode [ 182.030974] device hsr_slave_1 entered promiscuous mode [ 182.091033] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 182.097999] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 182.112610] bridge0: port 2(bridge_slave_1) entered blocking state [ 182.119147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 182.126247] bridge0: port 1(bridge_slave_0) entered blocking state [ 182.132752] bridge0: port 1(bridge_slave_0) entered forwarding state [ 182.163846] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 182.169944] 8021q: adding VLAN 0 to HW filter on device bond0 [ 182.178557] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 182.187473] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 182.197562] bridge0: port 1(bridge_slave_0) entered disabled state [ 182.204861] bridge0: port 2(bridge_slave_1) entered disabled state [ 182.212080] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 182.223005] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 182.229097] 8021q: adding VLAN 0 to HW filter on device team0 [ 182.238957] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 182.246862] bridge0: port 1(bridge_slave_0) entered blocking state [ 182.253278] bridge0: port 1(bridge_slave_0) entered forwarding state [ 182.264208] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 182.273068] bridge0: port 2(bridge_slave_1) entered blocking state [ 182.279509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 182.295314] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 182.303717] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 182.314044] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 182.328344] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 182.339007] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 182.350370] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 182.356860] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 182.365193] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 182.373118] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 182.386456] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 182.396325] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 287.460211] rcu: INFO: rcu_preempt self-detected stall on CPU [ 287.468256] rcu: 1-...!: (10500 ticks this GP) idle=8fa/0/0x3 softirq=12257/12257 fqs=0 [ 287.476814] rcu: (t=10501 jiffies g=5329 q=14) [ 287.481576] rcu: rcu_preempt kthread starved for 10502 jiffies! g5329 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 287.492129] rcu: RCU grace-period kthread stack dump: [ 287.497313] rcu_preempt I29424 10 2 0x80000000 [ 287.502985] Call Trace: [ 287.505711] __schedule+0x866/0x1dc0 [ 287.509431] ? pci_mmcfg_check_reserved+0x170/0x170 [ 287.514435] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 287.519601] ? lockdep_hardirqs_on+0x415/0x5d0 [ 287.524205] ? trace_hardirqs_on+0x67/0x220 [ 287.528519] schedule+0x92/0x1c0 [ 287.531877] schedule_timeout+0x4db/0xfc0 [ 287.536015] ? usleep_range+0x170/0x170 [ 287.539997] ? trace_hardirqs_on+0x67/0x220 [ 287.544366] ? kasan_check_read+0x11/0x20 [ 287.548539] ? __next_timer_interrupt+0x1a0/0x1a0 [ 287.553400] ? prepare_to_swait_exclusive+0x120/0x120 [ 287.558614] rcu_gp_kthread+0xd5c/0x2190 [ 287.562682] ? rcu_blocking_is_gp+0x90/0x90 [ 287.566993] ? trace_hardirqs_on+0x67/0x220 [ 287.571314] ? kasan_check_read+0x11/0x20 [ 287.575466] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 287.580589] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 287.586150] ? __kthread_parkme+0xfb/0x1b0 [ 287.590386] kthread+0x354/0x420 [ 287.593746] ? rcu_blocking_is_gp+0x90/0x90 [ 287.598054] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 287.603591] ret_from_fork+0x24/0x30 [ 287.607377] NMI backtrace for cpu 1 [ 287.611024] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.72 #0 [ 287.617155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 287.626492] Call Trace: [ 287.629061] [ 287.631266] dump_stack+0x172/0x1f0 [ 287.634888] nmi_cpu_backtrace.cold+0x63/0xa4 [ 287.639430] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 287.644346] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 287.649725] arch_trigger_cpumask_backtrace+0x14/0x20 [ 287.654908] rcu_dump_cpu_stacks+0x189/0x1d5 [ 287.659342] ? wake_up_process+0x10/0x20 [ 287.663407] rcu_check_callbacks.cold+0x5e3/0xd90 [ 287.668241] ? trace_hardirqs_off+0x62/0x220 [ 287.672716] update_process_times+0x32/0x80 [ 287.677045] tick_sched_handle+0xa2/0x190 [ 287.681181] tick_sched_timer+0x47/0x130 [ 287.685231] __hrtimer_run_queues+0x33b/0xdc0 [ 287.689717] ? tick_sched_do_timer+0x1b0/0x1b0 [ 287.694291] ? hrtimer_fixup_activate+0x30/0x30 [ 287.699122] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 287.704164] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 287.709543] hrtimer_interrupt+0x314/0x770 [ 287.713883] smp_apic_timer_interrupt+0x111/0x550 [ 287.718719] apic_timer_interrupt+0xf/0x20 [ 287.723069] RIP: 0010:__list_del_entry_valid+0xb1/0xf5 [ 287.728344] 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 [ 287.747234] RSP: 0018:ffff8880ae9075f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 287.754933] RAX: dffffc0000000000 RBX: ffff8880817042f8 RCX: ffffffff858e78e9 [ 287.762191] RDX: 1ffff110102e0873 RSI: ffffffff858e7d9b RDI: ffff888081704398 [ 287.769464] RBP: ffff8880ae907608 R08: ffff8880aa2703c0 R09: 0000000000000005 [ 287.776726] R10: ffff8880aa270d08 R11: 00000000a65c5890 R12: ffff888081704390 [ 287.783996] R13: ffff888081704390 R14: ffff8880817042f8 R15: 0000000000000000 [ 287.791266] ? apic_timer_interrupt+0xa/0x20 [ 287.795746] ? hhf_dequeue+0xb9/0xa00 [ 287.799552] ? hhf_dequeue+0x56b/0xa00 [ 287.803449] hhf_dequeue+0x5aa/0xa00 [ 287.807240] __qdisc_run+0x1e7/0x1960 [ 287.811083] __dev_queue_xmit+0x165c/0x2fe0 [ 287.815409] ? mark_held_locks+0x100/0x100 [ 287.819646] ? netdev_pick_tx+0x300/0x300 [ 287.823845] ? ip6_finish_output+0x574/0xbe0 [ 287.828246] ? find_held_lock+0x35/0x130 [ 287.832297] ? ip6_finish_output+0x574/0xbe0 [ 287.836724] ? mark_held_locks+0xb1/0x100 [ 287.840875] ? ip6_finish_output2+0x1784/0x2550 [ 287.845646] ? ip6_finish_output+0x574/0xbe0 [ 287.850062] ? ip6_finish_output2+0x1784/0x2550 [ 287.854752] dev_queue_xmit+0x18/0x20 [ 287.858552] ? dev_queue_xmit+0x18/0x20 [ 287.862517] ip6_finish_output2+0x12fd/0x2550 [ 287.867088] ? ip6_mtu+0x2e6/0x460 [ 287.870622] ? ip6_forward_finish+0x4d0/0x4d0 [ 287.875107] ? lock_downgrade+0x810/0x810 [ 287.879256] ? kasan_check_read+0x11/0x20 [ 287.883413] ip6_finish_output+0x574/0xbe0 [ 287.887638] ? ip6_finish_output+0x574/0xbe0 [ 287.892128] ip6_output+0x235/0x7c0 [ 287.895753] ? ip6_finish_output+0xbe0/0xbe0 [ 287.900154] ? ip6_fragment+0x3770/0x3770 [ 287.904310] ? icmp6_dst_alloc+0x432/0x660 [ 287.908602] mld_sendpack+0x9d3/0xeb0 [ 287.912399] ? nf_hook.constprop.0+0x560/0x560 [ 287.916987] ? mld_ifc_timer_expire+0x437/0x8a0 [ 287.921702] ? __local_bh_enable_ip+0x15a/0x270 [ 287.926450] mld_ifc_timer_expire+0x449/0x8a0 [ 287.930956] call_timer_fn+0x18d/0x720 [ 287.934836] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 287.939493] ? process_timeout+0x40/0x40 [ 287.943548] ? run_timer_softirq+0x647/0x1700 [ 287.948048] ? trace_hardirqs_on+0x67/0x220 [ 287.952378] ? kasan_check_read+0x11/0x20 [ 287.956530] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 287.961193] run_timer_softirq+0x652/0x1700 [ 287.965510] ? add_timer+0xbe0/0xbe0 [ 287.969259] ? kvm_clock_read+0x18/0x30 [ 287.973229] ? check_preemption_disabled+0x48/0x290 [ 287.978267] ? sched_clock+0x2e/0x50 [ 287.982001] __do_softirq+0x25c/0x921 [ 287.985805] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 287.991770] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 287.997306] irq_exit+0x180/0x1d0 [ 288.000782] smp_apic_timer_interrupt+0x13b/0x550 [ 288.005619] apic_timer_interrupt+0xf/0x20 [ 288.009877] [ 288.012110] RIP: 0010:native_safe_halt+0xe/0x10 [ 288.016787] Code: ff ff 48 89 df e8 72 12 ae fa eb 82 e9 07 00 00 00 0f 00 2d 94 03 54 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 84 03 54 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 be f4 65 fa e8 69 [ 288.035779] RSP: 0018:ffff8880aa27fd00 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 288.043488] RAX: 1ffffffff10e48c4 RBX: ffff8880aa2703c0 RCX: 0000000000000000 [ 288.050761] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa270c3c [ 288.059475] RBP: ffff8880aa27fd30 R08: ffff8880aa2703c0 R09: 0000000000000000 [ 288.066755] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 288.074024] R13: ffffffff88724610 R14: 0000000000000001 R15: 0000000000000000 [ 288.081312] ? default_idle+0x4e/0x320 [ 288.085196] arch_cpu_idle+0xa/0x10 [ 288.088812] default_idle_call+0x36/0x90 [ 288.092951] do_idle+0x377/0x560 [ 288.096317] ? arch_cpu_idle_exit+0x80/0x80 [ 288.100626] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 288.105719] ? complete+0x61/0x80 [ 288.109327] cpu_startup_entry+0xc8/0xe0 [ 288.113414] ? cpu_in_idle+0x20/0x20 [ 288.117224] ? setup_APIC_timer+0x1aa/0x200 [ 288.121552] start_secondary+0x3e8/0x5b0 [ 288.125624] ? set_cpu_sibling_map+0x1860/0x1860 [ 288.130409] secondary_startup_64+0xa4/0xb0