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. [ 37.481703] audit: type=1800 audit(1568189300.479:33): pid=7233 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 [ 37.509834] audit: type=1800 audit(1568189300.479:34): pid=7233 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: [ 39.789413] audit: type=1400 audit(1568189302.789:35): avc: denied { map } for pid=7408 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 '10.128.0.183' (ECDSA) to the list of known hosts. [ 220.876212] audit: type=1400 audit(1568189483.869:36): avc: denied { map } for pid=7421 comm="syz-executor224" path="/root/syz-executor224005335" 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 [ 220.901685] IPVS: ftp: loaded support on port[0] = 21 [ 220.954735] chnl_net:caif_netlink_parms(): no params data found [ 220.985008] bridge0: port 1(bridge_slave_0) entered blocking state [ 220.991708] bridge0: port 1(bridge_slave_0) entered disabled state [ 220.998867] device bridge_slave_0 entered promiscuous mode [ 221.007186] bridge0: port 2(bridge_slave_1) entered blocking state [ 221.013659] bridge0: port 2(bridge_slave_1) entered disabled state [ 221.020696] device bridge_slave_1 entered promiscuous mode [ 221.035812] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 221.045456] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 221.061532] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 221.069121] team0: Port device team_slave_0 added [ 221.074511] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 221.081854] team0: Port device team_slave_1 added [ 221.087046] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 221.094533] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 221.151296] device hsr_slave_0 entered promiscuous mode [ 221.189267] device hsr_slave_1 entered promiscuous mode [ 221.229306] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 221.236250] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 221.249945] bridge0: port 2(bridge_slave_1) entered blocking state [ 221.256356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 221.263453] bridge0: port 1(bridge_slave_0) entered blocking state [ 221.269881] bridge0: port 1(bridge_slave_0) entered forwarding state [ 221.301886] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 221.308092] 8021q: adding VLAN 0 to HW filter on device bond0 [ 221.320077] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 221.328475] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 221.347948] bridge0: port 1(bridge_slave_0) entered disabled state [ 221.355603] bridge0: port 2(bridge_slave_1) entered disabled state [ 221.363924] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 221.373805] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 221.380273] 8021q: adding VLAN 0 to HW filter on device team0 [ 221.389789] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 221.397586] bridge0: port 1(bridge_slave_0) entered blocking state [ 221.403979] bridge0: port 1(bridge_slave_0) entered forwarding state [ 221.419867] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 221.427496] bridge0: port 2(bridge_slave_1) entered blocking state [ 221.433910] bridge0: port 2(bridge_slave_1) entered forwarding state [ 221.441266] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 221.449827] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 221.463339] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 221.473611] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 221.485346] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 221.492101] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 221.499953] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 221.507621] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 221.516772] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 221.529918] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 221.539759] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 326.838771] rcu: INFO: rcu_preempt self-detected stall on CPU [ 326.844903] rcu: 0-...!: (10500 ticks this GP) idle=216/0/0x3 softirq=18981/18981 fqs=0 [ 326.853425] rcu: (t=10500 jiffies g=5105 q=200) [ 326.858381] rcu: rcu_preempt kthread starved for 10500 jiffies! g5105 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 326.868934] rcu: RCU grace-period kthread stack dump: [ 326.874108] rcu_preempt I29024 10 2 0x80000000 [ 326.879730] Call Trace: [ 326.882401] __schedule+0x866/0x1dc0 [ 326.886112] ? pci_mmcfg_check_reserved+0x170/0x170 [ 326.891116] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 326.896248] ? lockdep_hardirqs_on+0x415/0x5d0 [ 326.900848] ? trace_hardirqs_on+0x67/0x220 [ 326.905179] schedule+0x92/0x1c0 [ 326.908534] schedule_timeout+0x4db/0xfc0 [ 326.912675] ? usleep_range+0x170/0x170 [ 326.916640] ? trace_hardirqs_on+0x67/0x220 [ 326.920983] ? kasan_check_read+0x11/0x20 [ 326.925148] ? __next_timer_interrupt+0x1a0/0x1a0 [ 326.930006] ? prepare_to_swait_exclusive+0x120/0x120 [ 326.935212] rcu_gp_kthread+0xd5c/0x2190 [ 326.939279] ? rcu_blocking_is_gp+0x90/0x90 [ 326.943587] ? trace_hardirqs_on+0x67/0x220 [ 326.947901] ? kasan_check_read+0x11/0x20 [ 326.952051] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 326.957172] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 326.963540] ? __kthread_parkme+0xfb/0x1b0 [ 326.967767] kthread+0x354/0x420 [ 326.971125] ? rcu_blocking_is_gp+0x90/0x90 [ 326.975433] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 326.980959] ret_from_fork+0x24/0x30 [ 326.984692] NMI backtrace for cpu 0 [ 326.988311] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.72 #0 [ 326.994441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 327.003778] Call Trace: [ 327.006352] [ 327.008526] dump_stack+0x172/0x1f0 [ 327.012144] nmi_cpu_backtrace.cold+0x63/0xa4 [ 327.016775] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 327.021698] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 327.026979] arch_trigger_cpumask_backtrace+0x14/0x20 [ 327.032167] rcu_dump_cpu_stacks+0x189/0x1d5 [ 327.036617] ? wake_up_process+0x10/0x20 [ 327.040761] rcu_check_callbacks.cold+0x5e3/0xd90 [ 327.045608] ? trace_hardirqs_off+0x62/0x220 [ 327.050067] update_process_times+0x32/0x80 [ 327.054421] tick_sched_handle+0xa2/0x190 [ 327.058562] tick_sched_timer+0x47/0x130 [ 327.062615] __hrtimer_run_queues+0x33b/0xdc0 [ 327.067122] ? tick_sched_do_timer+0x1b0/0x1b0 [ 327.071700] ? hrtimer_fixup_activate+0x30/0x30 [ 327.076361] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 327.081367] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 327.086725] hrtimer_interrupt+0x314/0x770 [ 327.090959] smp_apic_timer_interrupt+0x111/0x550 [ 327.095793] apic_timer_interrupt+0xf/0x20 [ 327.100092] RIP: 0010:hhf_dequeue+0x5cc/0xa00 [ 327.104597] Code: 89 73 10 e8 56 47 97 fd 31 ff 41 89 c6 89 c6 e8 ea d9 dc fb 45 84 f6 74 63 e8 a0 d8 dc fb 48 89 d8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 e6 03 00 00 48 8d 7b 08 4c 8b 3b 48 89 fa 48 c1 ea 03 42 80 [ 327.123758] RSP: 0018:ffff8880ae807618 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 327.131759] RAX: 1ffff11010a36f2f RBX: ffff8880851b7978 RCX: ffffffff858e7de6 [ 327.139039] RDX: 0000000000000100 RSI: ffffffff858e7df0 RDI: 0000000000000001 [ 327.146300] RBP: ffff8880ae807668 R08: ffffffff88679ec0 R09: 0000000000000005 [ 327.153558] R10: ffffffff8867a808 R11: 000000003b199e4f R12: dffffc0000000000 [ 327.160812] R13: ffff8880851b76c0 R14: 0000000000000001 R15: 0000000000000000 [ 327.168079] ? apic_timer_interrupt+0xa/0x20 [ 327.172481] ? hhf_dequeue+0x5b6/0xa00 [ 327.176350] ? hhf_dequeue+0x5c0/0xa00 [ 327.180225] ? hhf_dequeue+0x5c0/0xa00 [ 327.184197] __qdisc_run+0x1e7/0x1960 [ 327.188058] __dev_queue_xmit+0x165c/0x2fe0 [ 327.192368] ? mark_held_locks+0x100/0x100 [ 327.196594] ? netdev_pick_tx+0x300/0x300 [ 327.200794] ? ip6_finish_output+0x574/0xbe0 [ 327.205202] ? find_held_lock+0x35/0x130 [ 327.209250] ? ip6_finish_output+0x574/0xbe0 [ 327.213646] ? mark_held_locks+0xb1/0x100 [ 327.217786] ? ip6_finish_output2+0x1784/0x2550 [ 327.222439] ? ip6_finish_output+0x574/0xbe0 [ 327.226831] ? ip6_finish_output2+0x1784/0x2550 [ 327.231492] dev_queue_xmit+0x18/0x20 [ 327.235278] ? dev_queue_xmit+0x18/0x20 [ 327.239342] ip6_finish_output2+0x12fd/0x2550 [ 327.244180] ? ip6_mtu+0x2e6/0x460 [ 327.247738] ? ip6_forward_finish+0x4d0/0x4d0 [ 327.252235] ? lock_downgrade+0x810/0x810 [ 327.256383] ? kasan_check_read+0x11/0x20 [ 327.260540] ip6_finish_output+0x574/0xbe0 [ 327.264771] ? ip6_finish_output+0x574/0xbe0 [ 327.269174] ip6_output+0x235/0x7c0 [ 327.272794] ? ip6_finish_output+0xbe0/0xbe0 [ 327.277203] ? ip6_fragment+0x3770/0x3770 [ 327.281496] ? icmp6_dst_alloc+0x432/0x660 [ 327.285785] mld_sendpack+0x9d3/0xeb0 [ 327.289609] ? nf_hook.constprop.0+0x560/0x560 [ 327.294191] ? mld_ifc_timer_expire+0x437/0x8a0 [ 327.298912] ? __local_bh_enable_ip+0x15a/0x270 [ 327.303574] mld_ifc_timer_expire+0x449/0x8a0 [ 327.308080] call_timer_fn+0x18d/0x720 [ 327.311957] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 327.316632] ? process_timeout+0x40/0x40 [ 327.320685] ? run_timer_softirq+0x647/0x1700 [ 327.325171] ? trace_hardirqs_on+0x67/0x220 [ 327.329581] ? kasan_check_read+0x11/0x20 [ 327.333726] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 327.338398] run_timer_softirq+0x652/0x1700 [ 327.342712] ? add_timer+0xbe0/0xbe0 [ 327.346452] ? kvm_clock_read+0x18/0x30 [ 327.350497] ? check_preemption_disabled+0x48/0x290 [ 327.355711] ? sched_clock+0x2e/0x50 [ 327.359525] __do_softirq+0x25c/0x921 [ 327.363942] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 327.369468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 327.375007] irq_exit+0x180/0x1d0 [ 327.378449] smp_apic_timer_interrupt+0x13b/0x550 [ 327.383283] apic_timer_interrupt+0xf/0x20 [ 327.387500] [ 327.389729] RIP: 0010:native_safe_halt+0xe/0x10 [ 327.394388] 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 [ 327.413279] RSP: 0018:ffffffff88607ca8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 327.421368] RAX: 1ffffffff10e48c4 RBX: ffffffff88679ec0 RCX: 0000000000000000 [ 327.428627] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8867a73c [ 327.435885] RBP: ffffffff88607cd8 R08: ffffffff88679ec0 R09: 0000000000000000 [ 327.443146] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 327.451196] R13: ffffffff88724610 R14: 0000000000000000 R15: 0000000000000000 [ 327.458630] ? default_idle+0x4e/0x320 [ 327.462623] arch_cpu_idle+0xa/0x10 [ 327.466244] default_idle_call+0x36/0x90 [ 327.470372] do_idle+0x377/0x560 [ 327.473737] ? arch_cpu_idle_exit+0x80/0x80 [ 327.478063] ? check_preemption_disabled+0x48/0x290 [ 327.483080] cpu_startup_entry+0xc8/0xe0 [ 327.487133] ? cpu_in_idle+0x20/0x20 [ 327.490849] rest_init+0x219/0x222 [ 327.494435] start_kernel+0x88c/0x8c5 [ 327.498225] ? mem_encrypt_init+0xb/0xb [ 327.502209] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 327.507737] ? x86_family+0x41/0x50 [ 327.511366] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 327.516920] x86_64_start_reservations+0x29/0x2b [ 327.521665] x86_64_start_kernel+0x77/0x7b [ 327.525910] secondary_startup_64+0xa4/0xb0