[ 39.481097] audit: type=1800 audit(1568072046.801:32): pid=7395 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=2450 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 40.213681] audit: type=1800 audit(1568072047.621:33): pid=7395 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.77' (ECDSA) to the list of known hosts. syzkaller login: [ 47.578404] kauditd_printk_skb: 2 callbacks suppressed [ 47.578418] audit: type=1400 audit(1568072054.991:36): avc: denied { map } for pid=7581 comm="syz-executor554" path="/root/syz-executor554712227" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 47.597459] IPVS: ftp: loaded support on port[0] = 21 [ 47.663300] chnl_net:caif_netlink_parms(): no params data found [ 47.695321] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.702056] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.709606] device bridge_slave_0 entered promiscuous mode [ 47.717242] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.723708] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.730874] device bridge_slave_1 entered promiscuous mode [ 47.748386] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.757368] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.773614] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.781541] team0: Port device team_slave_0 added [ 47.787044] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.794180] team0: Port device team_slave_1 added [ 47.799568] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.807031] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.886894] device hsr_slave_0 entered promiscuous mode [ 47.925270] device hsr_slave_1 entered promiscuous mode [ 47.965463] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 47.973108] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 47.987000] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.993407] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.000513] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.006902] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.038547] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.044641] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.053967] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.063228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.082172] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.089585] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.097926] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.107706] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 48.113942] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.123848] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.131668] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.138060] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.148360] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.156418] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.162854] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.182028] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.192108] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.203593] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.213532] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.221366] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.229533] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 48.237246] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.244721] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.251730] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.263581] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.273608] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 153.354925] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 153.361251] rcu: (detected by 1, t=10502 jiffies, g=4985, q=12) [ 153.367407] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294952483-4294941980), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 153.380059] swapper/1 R running task 30392 0 1 0x80000008 [ 153.387259] Call Trace: [ 153.389838] [ 153.391995] sched_show_task.cold+0x2ee/0x35d [ 153.396481] ? set_rq_offline.part.0+0x140/0x140 [ 153.401252] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 153.406265] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 153.411834] rcu_check_callbacks.cold+0xaa1/0xd90 [ 153.416684] update_process_times+0x32/0x80 [ 153.421001] tick_sched_handle+0xa2/0x190 [ 153.425138] tick_sched_timer+0x47/0x130 [ 153.429189] __hrtimer_run_queues+0x33b/0xdc0 [ 153.433675] ? tick_sched_do_timer+0x1b0/0x1b0 [ 153.438251] ? hrtimer_fixup_activate+0x30/0x30 [ 153.442914] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 153.447931] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 153.453299] hrtimer_interrupt+0x314/0x770 [ 153.457542] smp_apic_timer_interrupt+0x111/0x550 [ 153.462373] apic_timer_interrupt+0xf/0x20 [ 153.466616] RIP: 0010:hhf_dequeue+0x6b2/0xa00 [ 153.471103] Code: 58 03 00 00 48 c1 e8 03 42 80 3c 20 00 0f 85 a4 02 00 00 48 8b 45 c8 48 8d 7b 08 48 89 03 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 7d 02 00 00 4c 89 f8 4c 89 7b 08 48 c1 e8 03 42 80 3c 20 00 [ 153.489993] RSP: 0018:ffff8880ae907618 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 153.497699] RAX: 1ffff11014982730 RBX: ffff8880a4c13978 RCX: ffffffff858e8a2e [ 153.504970] RDX: 0000000000000100 RSI: ffffffff858e8a40 RDI: ffff8880a4c13980 [ 153.512236] RBP: ffff8880ae907668 R08: ffff8880aa2703c0 R09: 0000000000000005 [ 153.519491] R10: ffff8880aa270d08 R11: 00000000945c299c R12: dffffc0000000000 [ 153.526758] R13: ffff8880a4c136c0 R14: ffff8880a4c13a18 R15: ffff8880a4c13a10 [ 153.534026] ? apic_timer_interrupt+0xa/0x20 [ 153.538432] ? hhf_dequeue+0x65e/0xa00 [ 153.542306] ? hhf_dequeue+0x670/0xa00 [ 153.546182] ? hhf_dequeue+0x670/0xa00 [ 153.550167] __qdisc_run+0x1e7/0x1960 [ 153.553976] __dev_queue_xmit+0x165c/0x2fe0 [ 153.558285] ? mark_held_locks+0x100/0x100 [ 153.562520] ? netdev_pick_tx+0x300/0x300 [ 153.566655] ? ip6_finish_output+0x574/0xbe0 [ 153.571052] ? find_held_lock+0x35/0x130 [ 153.575101] ? ip6_finish_output+0x574/0xbe0 [ 153.579497] ? mark_held_locks+0xb1/0x100 [ 153.583642] ? ip6_finish_output2+0x1784/0x2550 [ 153.588300] ? ip6_finish_output+0x574/0xbe0 [ 153.592698] ? ip6_finish_output2+0x1784/0x2550 [ 153.597367] dev_queue_xmit+0x18/0x20 [ 153.601155] ? dev_queue_xmit+0x18/0x20 [ 153.605116] ip6_finish_output2+0x12fd/0x2550 [ 153.609600] ? ip6_mtu+0x2e6/0x460 [ 153.613136] ? ip6_forward_finish+0x4d0/0x4d0 [ 153.617619] ? lock_downgrade+0x810/0x810 [ 153.621757] ? kasan_check_read+0x11/0x20 [ 153.625906] ip6_finish_output+0x574/0xbe0 [ 153.630560] ? ip6_finish_output+0x574/0xbe0 [ 153.634975] ip6_output+0x235/0x7c0 [ 153.638590] ? ip6_finish_output+0xbe0/0xbe0 [ 153.642988] ? ip6_fragment+0x3770/0x3770 [ 153.647135] ? icmp6_dst_alloc+0x432/0x660 [ 153.651361] mld_sendpack+0x9d3/0xeb0 [ 153.655165] ? nf_hook.constprop.0+0x560/0x560 [ 153.659738] ? mld_ifc_timer_expire+0x437/0x8a0 [ 153.664398] ? __local_bh_enable_ip+0x15a/0x270 [ 153.669058] mld_ifc_timer_expire+0x449/0x8a0 [ 153.673546] call_timer_fn+0x18d/0x720 [ 153.677426] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 153.682134] ? process_timeout+0x40/0x40 [ 153.686182] ? run_timer_softirq+0x647/0x1700 [ 153.690670] ? trace_hardirqs_on+0x67/0x220 [ 153.694978] ? kasan_check_read+0x11/0x20 [ 153.699114] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 153.703771] run_timer_softirq+0x652/0x1700 [ 153.708084] ? add_timer+0xbe0/0xbe0 [ 153.711785] ? kvm_clock_read+0x18/0x30 [ 153.715747] ? check_preemption_disabled+0x48/0x290 [ 153.720761] ? sched_clock+0x2e/0x50 [ 153.724474] __do_softirq+0x25c/0x921 [ 153.728264] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 153.736948] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 153.742537] irq_exit+0x180/0x1d0 [ 153.745994] smp_apic_timer_interrupt+0x13b/0x550 [ 153.750828] apic_timer_interrupt+0xf/0x20 [ 153.755057] [ 153.757285] RIP: 0010:native_safe_halt+0xe/0x10 [ 153.761947] 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 [ 153.781214] RSP: 0018:ffff8880aa27fd00 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 153.789111] RAX: 1ffffffff10e48c4 RBX: ffff8880aa2703c0 RCX: 0000000000000000 [ 153.796390] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa270c3c [ 153.803652] RBP: ffff8880aa27fd30 R08: ffff8880aa2703c0 R09: 0000000000000000 [ 153.810913] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 153.818182] R13: ffffffff88724610 R14: 0000000000000001 R15: 0000000000000000 [ 153.825472] ? default_idle+0x4e/0x320 [ 153.829361] arch_cpu_idle+0xa/0x10 [ 153.832977] default_idle_call+0x36/0x90 [ 153.837036] do_idle+0x377/0x560 [ 153.840392] ? arch_cpu_idle_exit+0x80/0x80 [ 153.844703] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 153.849806] ? complete+0x61/0x80 [ 153.853253] cpu_startup_entry+0xc8/0xe0 [ 153.857314] ? cpu_in_idle+0x20/0x20 [ 153.861021] ? setup_APIC_timer+0x1aa/0x200 [ 153.865336] start_secondary+0x3e8/0x5b0 [ 153.869387] ? set_cpu_sibling_map+0x1860/0x1860 [ 153.874138] secondary_startup_64+0xa4/0xb0 [ 153.878507] rcu: rcu_preempt kthread starved for 10554 jiffies! g4985 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 153.888890] rcu: RCU grace-period kthread stack dump: [ 153.894083] rcu_preempt R running task 29624 10 2 0x80000000 [ 153.901288] Call Trace: [ 153.903881] __schedule+0x866/0x1dc0 [ 153.907594] ? pci_mmcfg_check_reserved+0x170/0x170 [ 153.912612] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 153.917717] ? lockdep_hardirqs_on+0x415/0x5d0 [ 153.922293] ? trace_hardirqs_on+0x67/0x220 [ 153.926604] schedule+0x92/0x1c0 [ 153.929969] schedule_timeout+0x4db/0xfc0 [ 153.934107] ? usleep_range+0x170/0x170 [ 153.938089] ? trace_hardirqs_on+0x67/0x220 [ 153.942438] ? kasan_check_read+0x11/0x20 [ 153.946593] ? __next_timer_interrupt+0x1a0/0x1a0 [ 153.951435] ? prepare_to_swait_exclusive+0x120/0x120 [ 153.956622] rcu_gp_kthread+0xd5c/0x2190 [ 153.960701] ? rcu_blocking_is_gp+0x90/0x90 [ 153.965010] ? trace_hardirqs_on+0x67/0x220 [ 153.969329] ? kasan_check_read+0x11/0x20 [ 153.973471] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 153.978568] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 153.984267] ? __kthread_parkme+0xfb/0x1b0 [ 153.988503] kthread+0x354/0x420 [ 153.991862] ? rcu_blocking_is_gp+0x90/0x90 [ 153.996181] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 154.001707] ret_from_fork+0x24/0x30