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. [ 39.273096] audit: type=1800 audit(1568568542.845:33): pid=7267 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 [ 39.300936] audit: type=1800 audit(1568568542.855:34): pid=7267 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: [ 42.123403] audit: type=1400 audit(1568568545.695:35): avc: denied { map } for pid=7441 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 '10.128.0.125' (ECDSA) to the list of known hosts. [ 154.118645] audit: type=1400 audit(1568568657.695:36): avc: denied { map } for pid=7453 comm="syz-executor937" path="/root/syz-executor937753046" 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 [ 154.139732] IPVS: ftp: loaded support on port[0] = 21 [ 154.207093] chnl_net:caif_netlink_parms(): no params data found [ 154.237221] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.246519] bridge0: port 1(bridge_slave_0) entered disabled state [ 154.253869] device bridge_slave_0 entered promiscuous mode [ 154.261971] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.268833] bridge0: port 2(bridge_slave_1) entered disabled state [ 154.276137] device bridge_slave_1 entered promiscuous mode [ 154.293180] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 154.302648] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 154.319321] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 154.326921] team0: Port device team_slave_0 added [ 154.332342] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 154.339754] team0: Port device team_slave_1 added [ 154.345062] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 154.352593] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 154.408215] device hsr_slave_0 entered promiscuous mode [ 154.446555] device hsr_slave_1 entered promiscuous mode [ 154.486791] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 154.493777] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 154.507578] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.514023] bridge0: port 2(bridge_slave_1) entered forwarding state [ 154.520990] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.527408] bridge0: port 1(bridge_slave_0) entered forwarding state [ 154.560802] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 154.567498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 154.575760] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 154.584983] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 154.605959] bridge0: port 1(bridge_slave_0) entered disabled state [ 154.613365] bridge0: port 2(bridge_slave_1) entered disabled state [ 154.621551] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 154.631457] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 154.638370] 8021q: adding VLAN 0 to HW filter on device team0 [ 154.648051] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 154.657022] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.664669] bridge0: port 1(bridge_slave_0) entered forwarding state [ 154.685732] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 154.697022] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 154.708826] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 154.716899] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 154.725376] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.733267] bridge0: port 2(bridge_slave_1) entered forwarding state [ 154.742282] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 154.752054] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 154.760016] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 154.768446] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 154.777406] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 154.784662] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 154.799319] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready executing program [ 154.810226] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 259.846312] rcu: INFO: rcu_preempt self-detected stall on CPU [ 259.855839] rcu: 0-...!: (10499 ticks this GP) idle=41e/0/0x3 softirq=11488/11488 fqs=15 [ 259.864891] rcu: (t=10501 jiffies g=5285 q=17) [ 259.869752] rcu: rcu_preempt kthread starved for 10472 jiffies! g5285 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 259.880312] rcu: RCU grace-period kthread stack dump: [ 259.885590] rcu_preempt I29104 10 2 0x80000000 [ 259.891272] Call Trace: [ 259.894114] __schedule+0x866/0x1dc0 [ 259.897826] ? pci_mmcfg_check_reserved+0x170/0x170 [ 259.902835] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 259.908392] ? lockdep_hardirqs_on+0x415/0x5d0 [ 259.914064] ? trace_hardirqs_on+0x67/0x220 [ 259.918390] schedule+0x92/0x1c0 [ 259.921851] schedule_timeout+0x4db/0xfc0 [ 259.926106] ? usleep_range+0x170/0x170 [ 259.930080] ? trace_hardirqs_on+0x67/0x220 [ 259.934656] ? kasan_check_read+0x11/0x20 [ 259.938825] ? __next_timer_interrupt+0x1a0/0x1a0 [ 259.943880] ? prepare_to_swait_exclusive+0x120/0x120 [ 259.949102] rcu_gp_kthread+0xd5c/0x2190 [ 259.953211] ? rcu_blocking_is_gp+0x90/0x90 [ 259.958045] ? trace_hardirqs_on+0x67/0x220 [ 259.962374] ? kasan_check_read+0x11/0x20 [ 259.966515] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 259.971651] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 259.977363] ? __kthread_parkme+0xfb/0x1b0 [ 259.981603] kthread+0x354/0x420 [ 259.985010] ? rcu_blocking_is_gp+0x90/0x90 [ 259.989321] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 259.994870] ret_from_fork+0x24/0x30 [ 259.998680] NMI backtrace for cpu 0 [ 260.002337] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.72 #0 [ 260.009012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 260.018973] Call Trace: [ 260.021816] [ 260.024465] dump_stack+0x172/0x1f0 [ 260.028782] nmi_cpu_backtrace.cold+0x63/0xa4 [ 260.033310] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 260.038231] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 260.043500] arch_trigger_cpumask_backtrace+0x14/0x20 [ 260.050163] rcu_dump_cpu_stacks+0x189/0x1d5 [ 260.054602] ? wake_up_process+0x10/0x20 [ 260.058665] rcu_check_callbacks.cold+0x5e3/0xd90 [ 260.063498] ? trace_hardirqs_off+0x62/0x220 [ 260.067933] update_process_times+0x32/0x80 [ 260.072288] tick_sched_handle+0xa2/0x190 [ 260.076427] tick_sched_timer+0x47/0x130 [ 260.080490] __hrtimer_run_queues+0x33b/0xdc0 [ 260.084989] ? tick_sched_do_timer+0x1b0/0x1b0 [ 260.089571] ? hrtimer_fixup_activate+0x30/0x30 [ 260.094246] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 260.099257] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 260.104617] hrtimer_interrupt+0x314/0x770 [ 260.108852] smp_apic_timer_interrupt+0x111/0x550 [ 260.113695] apic_timer_interrupt+0xf/0x20 [ 260.118030] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x50 [ 260.123394] Code: 66 ea ff 48 c7 05 44 22 cd 08 00 00 00 00 e9 ca e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 8b 75 08 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 28 97 96 7e 81 e2 00 01 1f 00 [ 260.142642] RSP: 0018:ffff8880ae806ad8 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 [ 260.150441] RAX: ffff8880a560f038 RBX: ffff8880a560f038 RCX: ffffffff858e7e8e [ 260.157700] RDX: 0000000000000100 RSI: ffffffff858e78aa RDI: ffff8880a560f040 [ 260.164967] RBP: ffff8880ae806ad8 R08: ffffffff88679ec0 R09: 0000000000000006 [ 260.172270] R10: ffffffff8867a830 R11: 000000007c7ad76e R12: dffffc0000000000 [ 260.179530] R13: ffff8880a560ed80 R14: ffff8880a560f0d0 R15: ffff8880a560f0d0 [ 260.187325] ? apic_timer_interrupt+0xa/0x20 [ 260.191791] ? hhf_dequeue+0x65e/0xa00 [ 260.195681] ? hhf_dequeue+0x7a/0xa00 [ 260.199481] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 260.205006] hhf_dequeue+0x7a/0xa00 [ 260.208676] __qdisc_run+0x1e7/0x1960 [ 260.212525] __dev_queue_xmit+0x165c/0x2fe0 [ 260.216893] ? deliver_clone+0x61/0xc0 [ 260.220770] ? br_flood+0x5fa/0x710 [ 260.224473] ? br_handle_frame_finish+0xf72/0x1510 [ 260.229398] ? netdev_pick_tx+0x300/0x300 [ 260.233602] ? irq_exit+0x180/0x1d0 [ 260.237223] ? smp_apic_timer_interrupt+0x13b/0x550 [ 260.242230] ? apic_timer_interrupt+0xf/0x20 [ 260.246636] ? acpi_processor_ffh_cstate_enter+0x200/0x2a0 [ 260.252289] ? arch_cpu_idle+0xa/0x10 [ 260.256191] ? do_idle+0x377/0x560 [ 260.259728] ? cpu_startup_entry+0xc8/0xe0 [ 260.263958] ? rest_init+0x219/0x222 [ 260.267794] ? x86_64_start_reservations+0x29/0x2b [ 260.272709] ? x86_64_start_kernel+0x77/0x7b [ 260.277125] ? secondary_startup_64+0xa4/0xb0 [ 260.281615] ? __lock_is_held+0xb6/0x140 [ 260.285671] dev_queue_xmit+0x18/0x20 [ 260.289462] ? dev_queue_xmit+0x18/0x20 [ 260.293426] br_dev_queue_push_xmit+0x405/0x5d0 [ 260.298271] ? br_nf_dev_queue_xmit+0x38c/0x1610 [ 260.303024] br_nf_dev_queue_xmit+0x365/0x1610 [ 260.307602] br_nf_post_routing+0x76f/0x12f0 [ 260.312001] ? find_inlist_lock.constprop.0+0x22a/0x230 [ 260.317368] ? br_nf_dev_queue_xmit+0x1610/0x1610 [ 260.322247] ? ipv6_skip_exthdr+0x5b0/0x5c0 [ 260.326563] ? br_nf_pre_routing_finish_bridge+0xaa0/0xaa0 [ 260.332223] nf_hook_slow+0xbc/0x1e0 [ 260.335939] br_forward_finish+0x215/0x400 [ 260.340170] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 260.345006] ? br_fdb_add.cold+0x8a/0x8a [ 260.349074] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 260.354075] ? nf_hook_slow+0xf0/0x1e0 [ 260.357992] br_nf_hook_thresh+0x2e9/0x370 [ 260.362220] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 260.367063] ? setup_pre_routing+0x470/0x470 [ 260.371463] ? find_held_lock+0x35/0x130 [ 260.375549] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 260.380387] br_nf_forward_finish+0x356/0x700 [ 260.384886] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 260.389723] br_nf_forward_ip+0x6b4/0x17c0 [ 260.393961] ? br_nf_forward_finish+0x700/0x700 [ 260.398702] ? refcount_inc_not_zero_checked+0x147/0x200 [ 260.404195] ? br_nf_hook_thresh+0x370/0x370 [ 260.408601] nf_hook_slow+0xbc/0x1e0 [ 260.412308] __br_forward+0x393/0xb30 [ 260.416109] ? br_forward_finish+0x400/0x400 [ 260.420515] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 260.425361] deliver_clone+0x61/0xc0 [ 260.429066] br_flood+0x5fa/0x710 [ 260.432514] br_handle_frame_finish+0xf72/0x1510 [ 260.437265] ? br_handle_local_finish+0x20/0x20 [ 260.441933] ? __lock_is_held+0xb6/0x140 [ 260.445983] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 260.450988] ? nf_hook_slow+0xf0/0x1e0 [ 260.454877] br_nf_hook_thresh+0x2e9/0x370 [ 260.459107] ? br_handle_local_finish+0x20/0x20 [ 260.463769] ? setup_pre_routing+0x470/0x470 [ 260.468188] ? br_handle_local_finish+0x20/0x20 [ 260.472850] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 260.478032] br_nf_pre_routing_finish_ipv6+0x6ed/0xd70 [ 260.483318] ? br_handle_local_finish+0x20/0x20 [ 260.487992] ? kasan_check_read+0x11/0x20 [ 260.492134] br_nf_pre_routing_ipv6+0x4a5/0x8ca [ 260.496804] ? br_validate_ipv6+0xb90/0xb90 [ 260.501119] ? br_nf_pre_routing_finish.cold+0x11d/0x11d [ 260.506569] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 260.512166] ? skb_pull_rcsum+0x164/0x340 [ 260.516310] br_nf_pre_routing+0x1016/0x159c [ 260.520720] ? br_nf_pre_routing_finish+0x1960/0x1960 [ 260.525903] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 260.531453] ? ebt_broute+0x127/0x190 [ 260.535249] nf_hook_slow+0xbc/0x1e0 [ 260.538959] br_handle_frame+0x985/0x1480 [ 260.543099] ? br_handle_frame_finish+0x1510/0x1510 [ 260.548109] ? br_handle_local_finish+0x20/0x20 [ 260.553035] ? br_handle_frame_finish+0x1510/0x1510 [ 260.558046] __netif_receive_skb_core+0xac1/0x3570 [ 260.562964] ? __lock_acquire+0x6ee/0x49c0 [ 260.567281] ? __lock_acquire+0x6ee/0x49c0 [ 260.571513] ? netif_receive_skb+0x2d0/0x2d0 [ 260.575915] ? mark_held_locks+0x100/0x100 [ 260.580140] ? mark_held_locks+0x100/0x100 [ 260.584477] ? process_backlog+0x482/0x7a0 [ 260.588707] __netif_receive_skb_one_core+0xa8/0x1a0 [ 260.593818] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 260.599112] ? __netif_receive_skb_core+0x3570/0x3570 [ 260.604324] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 260.609936] ? check_preemption_disabled+0x48/0x290 [ 260.614948] ? lock_acquire+0x16f/0x3f0 [ 260.618920] __netif_receive_skb+0x2c/0x1d0 [ 260.623241] process_backlog+0x23a/0x7a0 [ 260.627288] ? net_rx_action+0x27b/0x1070 [ 260.631434] ? lockdep_hardirqs_on+0x19b/0x5d0 [ 260.636007] net_rx_action+0x4f5/0x1070 [ 260.639977] ? napi_complete_done+0x500/0x500 [ 260.644479] __do_softirq+0x25c/0x921 [ 260.648266] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 260.653792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 260.659337] irq_exit+0x180/0x1d0 [ 260.662790] smp_apic_timer_interrupt+0x13b/0x550 [ 260.667647] apic_timer_interrupt+0xf/0x20 [ 260.671874] [ 260.674101] RIP: 0010:native_safe_halt+0xe/0x10 [ 260.678762] 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 [ 260.698268] RSP: 0018:ffffffff88607ca8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 260.706011] RAX: 1ffffffff10e48c4 RBX: ffffffff88679ec0 RCX: 0000000000000000 [ 260.713278] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8867a73c [ 260.720714] RBP: ffffffff88607cd8 R08: ffffffff88679ec0 R09: 0000000000000000 [ 260.728058] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 260.735324] R13: ffffffff88724610 R14: 0000000000000000 R15: 0000000000000000 [ 260.742616] ? default_idle+0x4e/0x320 [ 260.746526] arch_cpu_idle+0xa/0x10 [ 260.750211] default_idle_call+0x36/0x90 [ 260.754273] do_idle+0x377/0x560 [ 260.757637] ? arch_cpu_idle_exit+0x80/0x80 [ 260.762073] cpu_startup_entry+0xc8/0xe0 [ 260.766144] ? cpu_in_idle+0x20/0x20 [ 260.769856] rest_init+0x219/0x222 [ 260.773396] start_kernel+0x88c/0x8c5 [ 260.777203] ? mem_encrypt_init+0xb/0xb [ 260.782151] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 260.787764] ? x86_family+0x41/0x50 [ 260.791390] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 260.797442] x86_64_start_reservations+0x29/0x2b [ 260.802248] x86_64_start_kernel+0x77/0x7b [ 260.806574] secondary_startup_64+0xa4/0xb0