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. [ 37.723927] audit: type=1800 audit(1567968617.034:33): pid=7289 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 [ 37.745917] audit: type=1800 audit(1567968617.034:34): pid=7289 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: [ 42.305388] audit: type=1400 audit(1567968621.614:35): avc: denied { map } for pid=7463 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 '10.128.1.16' (ECDSA) to the list of known hosts. [ 235.385859] audit: type=1400 audit(1567968814.694:36): avc: denied { map } for pid=7475 comm="syz-executor007" path="/root/syz-executor007804885" 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 [ 235.405588] IPVS: ftp: loaded support on port[0] = 21 [ 235.464296] chnl_net:caif_netlink_parms(): no params data found [ 235.496676] bridge0: port 1(bridge_slave_0) entered blocking state [ 235.503469] bridge0: port 1(bridge_slave_0) entered disabled state [ 235.510588] device bridge_slave_0 entered promiscuous mode [ 235.517985] bridge0: port 2(bridge_slave_1) entered blocking state [ 235.524447] bridge0: port 2(bridge_slave_1) entered disabled state [ 235.531358] device bridge_slave_1 entered promiscuous mode [ 235.547274] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 235.556195] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 235.571411] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 235.579192] team0: Port device team_slave_0 added [ 235.584728] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 235.591864] team0: Port device team_slave_1 added [ 235.597246] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 235.604602] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 235.684892] device hsr_slave_0 entered promiscuous mode [ 235.723231] device hsr_slave_1 entered promiscuous mode [ 235.763487] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 235.770450] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 235.784327] bridge0: port 2(bridge_slave_1) entered blocking state [ 235.790765] bridge0: port 2(bridge_slave_1) entered forwarding state [ 235.797723] bridge0: port 1(bridge_slave_0) entered blocking state [ 235.804243] bridge0: port 1(bridge_slave_0) entered forwarding state [ 235.834324] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 235.840430] 8021q: adding VLAN 0 to HW filter on device bond0 [ 235.849948] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 235.859038] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 235.878574] bridge0: port 1(bridge_slave_0) entered disabled state [ 235.886025] bridge0: port 2(bridge_slave_1) entered disabled state [ 235.893841] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 235.903908] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 235.910255] 8021q: adding VLAN 0 to HW filter on device team0 [ 235.932832] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 235.942931] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 235.953992] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 235.961252] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 235.969575] bridge0: port 1(bridge_slave_0) entered blocking state [ 235.976055] bridge0: port 1(bridge_slave_0) entered forwarding state [ 235.983772] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 235.991485] bridge0: port 2(bridge_slave_1) entered blocking state [ 235.997880] bridge0: port 2(bridge_slave_1) entered forwarding state [ 236.005174] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 236.012851] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 236.020553] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 236.028256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 236.036560] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 236.043624] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 236.056094] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 236.066209] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 341.062897] rcu: INFO: rcu_preempt self-detected stall on CPU [ 341.069030] rcu: 1-...!: (10499 ticks this GP) idle=3b2/0/0x3 softirq=11775/11775 fqs=0 [ 341.077616] rcu: (t=10500 jiffies g=4945 q=104) [ 341.082475] rcu: rcu_preempt kthread starved for 10500 jiffies! g4945 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 341.094083] rcu: RCU grace-period kthread stack dump: [ 341.099370] rcu_preempt I29424 10 2 0x80000000 [ 341.104993] Call Trace: [ 341.107655] __schedule+0x866/0x1dc0 [ 341.111366] ? pci_mmcfg_check_reserved+0x170/0x170 [ 341.116380] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 341.121690] ? lockdep_hardirqs_on+0x415/0x5d0 [ 341.126307] ? trace_hardirqs_on+0x67/0x220 [ 341.130634] schedule+0x92/0x1c0 [ 341.133991] schedule_timeout+0x4db/0xfc0 [ 341.138149] ? usleep_range+0x170/0x170 [ 341.142815] ? trace_hardirqs_on+0x67/0x220 [ 341.147158] ? kasan_check_read+0x11/0x20 [ 341.151317] ? __next_timer_interrupt+0x1a0/0x1a0 [ 341.156190] ? prepare_to_swait_exclusive+0x120/0x120 [ 341.161419] rcu_gp_kthread+0xd5c/0x2190 [ 341.165576] ? rcu_blocking_is_gp+0x90/0x90 [ 341.169902] ? trace_hardirqs_on+0x67/0x220 [ 341.174227] ? kasan_check_read+0x11/0x20 [ 341.178460] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 341.183674] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 341.189256] ? __kthread_parkme+0xfb/0x1b0 [ 341.193487] kthread+0x354/0x420 [ 341.196855] ? rcu_blocking_is_gp+0x90/0x90 [ 341.201166] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 341.206710] ret_from_fork+0x24/0x30 [ 341.210447] NMI backtrace for cpu 1 [ 341.214067] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.71 #0 [ 341.220198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 341.229536] Call Trace: [ 341.232129] [ 341.234301] dump_stack+0x172/0x1f0 [ 341.237922] nmi_cpu_backtrace.cold+0x63/0xa4 [ 341.242439] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 341.247358] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 341.252640] arch_trigger_cpumask_backtrace+0x14/0x20 [ 341.257823] rcu_dump_cpu_stacks+0x189/0x1d5 [ 341.262274] ? wake_up_process+0x10/0x20 [ 341.266336] rcu_check_callbacks.cold+0x5e3/0xd90 [ 341.271181] ? trace_hardirqs_off+0x62/0x220 [ 341.275616] update_process_times+0x32/0x80 [ 341.279951] tick_sched_handle+0xa2/0x190 [ 341.284106] tick_sched_timer+0x47/0x130 [ 341.288164] __hrtimer_run_queues+0x33b/0xdc0 [ 341.292652] ? tick_sched_do_timer+0x1b0/0x1b0 [ 341.297229] ? hrtimer_fixup_activate+0x30/0x30 [ 341.301887] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 341.306896] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 341.312287] hrtimer_interrupt+0x314/0x770 [ 341.317061] smp_apic_timer_interrupt+0x111/0x550 [ 341.321903] apic_timer_interrupt+0xf/0x20 [ 341.326191] RIP: 0010:hhf_dequeue+0x623/0xa00 [ 341.330700] Code: 03 42 80 3c 22 00 0f 85 9f 03 00 00 4c 89 f2 4d 89 77 08 48 c1 ea 03 42 80 3c 22 00 0f 85 7c 03 00 00 4d 89 3e e8 9d dc dc fb <4d> 8d b5 58 03 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 0f 85 4e [ 341.349591] RSP: 0018:ffff8880ae907588 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 341.357295] RAX: ffff8880aa2703c0 RBX: ffff888096fe42b8 RCX: ffffffff858e8986 [ 341.364567] RDX: 0000000000000100 RSI: ffffffff858e89f3 RDI: ffff888096fe4358 [ 341.371828] RBP: ffff8880ae9075d8 R08: ffff8880aa2703c0 R09: 0000000000000005 [ 341.379090] R10: ffff8880aa270d08 R11: 00000000ae203f26 R12: dffffc0000000000 [ 341.386347] R13: ffff888096fe4000 R14: ffff888096fe4350 R15: ffff888096fe4350 [ 341.393619] ? apic_timer_interrupt+0xa/0x20 [ 341.398021] ? hhf_dequeue+0x5b6/0xa00 [ 341.401897] ? hhf_dequeue+0x623/0xa00 [ 341.405788] ? hhf_dequeue+0x623/0xa00 [ 341.409853] __qdisc_run+0x1e7/0x1960 [ 341.413713] __dev_queue_xmit+0x165c/0x2fe0 [ 341.418035] ? netdev_pick_tx+0x300/0x300 [ 341.422253] ? ip6_finish_output2+0xac0/0x2550 [ 341.426852] ? find_held_lock+0x35/0x130 [ 341.430903] ? ip6_finish_output2+0xb7f/0x2550 [ 341.435490] ? mark_held_locks+0xb1/0x100 [ 341.439636] dev_queue_xmit+0x18/0x20 [ 341.443438] ? dev_queue_xmit+0x18/0x20 [ 341.447442] neigh_resolve_output+0x5b7/0x980 [ 341.451936] ip6_finish_output2+0xb7f/0x2550 [ 341.456361] ? ip6_mtu+0x2e6/0x460 [ 341.459894] ? ip6_forward_finish+0x4d0/0x4d0 [ 341.464394] ? lock_downgrade+0x810/0x810 [ 341.468535] ? kasan_check_read+0x11/0x20 [ 341.472693] ip6_finish_output+0x574/0xbe0 [ 341.477005] ? ip6_finish_output+0x574/0xbe0 [ 341.481409] ip6_output+0x235/0x7c0 [ 341.485046] ? ip6_finish_output+0xbe0/0xbe0 [ 341.489444] ? ip6_fragment+0x3770/0x3770 [ 341.493580] ? icmp6_dst_alloc+0x432/0x660 [ 341.497845] mld_sendpack+0x9d3/0xeb0 [ 341.501640] ? nf_hook.constprop.0+0x560/0x560 [ 341.506230] ? mld_ifc_timer_expire+0x437/0x8a0 [ 341.510931] ? __local_bh_enable_ip+0x15a/0x270 [ 341.515592] mld_ifc_timer_expire+0x449/0x8a0 [ 341.520103] call_timer_fn+0x18d/0x720 [ 341.523994] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 341.529126] ? process_timeout+0x40/0x40 [ 341.533183] ? run_timer_softirq+0x647/0x1700 [ 341.537681] ? trace_hardirqs_on+0x67/0x220 [ 341.542009] ? kasan_check_read+0x11/0x20 [ 341.546155] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 341.550856] run_timer_softirq+0x652/0x1700 [ 341.555192] ? add_timer+0xbe0/0xbe0 [ 341.559039] ? kvm_clock_read+0x18/0x30 [ 341.563587] ? check_preemption_disabled+0x48/0x290 [ 341.568629] ? sched_clock+0x2e/0x50 [ 341.572716] __do_softirq+0x25c/0x921 [ 341.576508] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 341.582031] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 341.587565] irq_exit+0x180/0x1d0 [ 341.591010] smp_apic_timer_interrupt+0x13b/0x550 [ 341.595844] apic_timer_interrupt+0xf/0x20 [ 341.600106] [ 341.602335] RIP: 0010:native_safe_halt+0xe/0x10 [ 341.606998] Code: ff ff 48 89 df e8 82 1b ae fa eb 82 e9 07 00 00 00 0f 00 2d a4 fc 53 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 94 fc 53 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce fd 65 fa e8 39 [ 341.625973] RSP: 0018:ffff8880aa27fd00 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 341.633703] RAX: 1ffffffff10e48c4 RBX: ffff8880aa2703c0 RCX: 0000000000000000 [ 341.640959] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa270c3c [ 341.651793] RBP: ffff8880aa27fd30 R08: ffff8880aa2703c0 R09: 0000000000000000 [ 341.659488] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 341.666758] R13: ffffffff88724610 R14: 0000000000000001 R15: 0000000000000000 [ 341.674031] ? default_idle+0x4e/0x320 [ 341.677942] arch_cpu_idle+0xa/0x10 [ 341.681558] default_idle_call+0x36/0x90 [ 341.685647] do_idle+0x377/0x560 [ 341.689004] ? arch_cpu_idle_exit+0x80/0x80 [ 341.693320] cpu_startup_entry+0xc8/0xe0 [ 341.697370] ? cpu_in_idle+0x20/0x20 [ 341.701103] ? setup_APIC_timer+0x1aa/0x200 [ 341.705676] start_secondary+0x3e8/0x5b0 [ 341.709738] ? set_cpu_sibling_map+0x1860/0x1860 [ 341.714525] secondary_startup_64+0xa4/0xb0