[ 46.391753][ T25] audit: type=1800 audit(1575346690.924:26): pid=8112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.458632][ T25] audit: type=1800 audit(1575346690.924:27): pid=8112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 46.491511][ T25] audit: type=1800 audit(1575346690.924:28): pid=8112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 47.039691][ T25] audit: type=1800 audit(1575346691.594:29): pid=8112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. 2019/12/03 04:18:21 fuzzer started 2019/12/03 04:18:22 dialing manager at 10.128.0.26:38907 2019/12/03 04:18:22 syscalls: 2697 2019/12/03 04:18:22 code coverage: enabled 2019/12/03 04:18:22 comparison tracing: enabled 2019/12/03 04:18:22 extra coverage: extra coverage is not supported by the kernel 2019/12/03 04:18:22 setuid sandbox: enabled 2019/12/03 04:18:22 namespace sandbox: enabled 2019/12/03 04:18:22 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 04:18:22 fault injection: enabled 2019/12/03 04:18:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 04:18:22 net packet injection: enabled 2019/12/03 04:18:22 net device setup: enabled 2019/12/03 04:18:22 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 04:18:22 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:18:23 executing program 0: r0 = socket$inet6(0xa, 0x80001, 0x0) getsockopt$bt_hci(r0, 0x0, 0x63, &(0x7f00001e3000)=""/30, &(0x7f0000d23000)=0x1e) 04:18:23 executing program 1: r0 = socket$inet6(0xa, 0x3, 0x6b) syz_mount_image$reiserfs(&(0x7f00000000c0)='reiserfs\x00', &(0x7f0000000180)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000440)={[{@usrjquota='usrjquota', 0x3d}]}) ioctl(r0, 0x1000008912, &(0x7f0000000100)="0815b5055e0bcfe87b3071") syzkaller login: [ 59.271732][ T8277] IPVS: ftp: loaded support on port[0] = 21 [ 59.390255][ T8277] chnl_net:caif_netlink_parms(): no params data found [ 59.477186][ T8277] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.495782][ T8277] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.504355][ T8277] device bridge_slave_0 entered promiscuous mode [ 59.519497][ T8280] IPVS: ftp: loaded support on port[0] = 21 04:18:24 executing program 2: r0 = syz_open_dev$sndpcmc(&(0x7f0000000240)='/dev/snd/pcmC#D#c\x00', 0x0, 0x0) ioctl$SNDRV_PCM_IOCTL_INFO(r0, 0x81204101, &(0x7f0000000000)) [ 59.526094][ T8277] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.533258][ T8277] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.545385][ T8277] device bridge_slave_1 entered promiscuous mode [ 59.589775][ T8277] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.608101][ T8277] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.667829][ T8277] team0: Port device team_slave_0 added [ 59.688374][ T8277] team0: Port device team_slave_1 added [ 59.709432][ T8280] chnl_net:caif_netlink_parms(): no params data found [ 59.748057][ T8277] device hsr_slave_0 entered promiscuous mode [ 59.784662][ T8277] device hsr_slave_1 entered promiscuous mode 04:18:24 executing program 3: r0 = socket$inet6(0xa, 0x3, 0x5) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000000)={'bridge0\x00', &(0x7f00000001c0)=@ethtool_drvinfo={0x3, "e17f5868997f8994fc2e9953e35d47ab047f6e59dd07aa7c2e1440ad44c22536", "88ee0084f1013f63d56ce797aa319e19c76289ddbb776019f2329538f9d5b8d2", "ce4781b455bb095ac23f724ebcf26ad0a9e998749d8e2ad415696606d86289ca", "504926b4cf7ee7e87b955ba1c45da35046050a4e9fd3ab98c2164371aa39ca9a", "e9208ac639a7abfb97d817f3e4af1c085c32d528b43d1b9cb3f286b777290137", "c654c15ecb6a3b75d09538eb"}}) [ 59.881700][ T8283] IPVS: ftp: loaded support on port[0] = 21 [ 59.946378][ T8280] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.953486][ T8280] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.966182][ T8280] device bridge_slave_0 entered promiscuous mode [ 59.978348][ T8277] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.041252][ T8280] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.064548][ T8280] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.072413][ T8280] device bridge_slave_1 entered promiscuous mode [ 60.084781][ T8277] netdevsim netdevsim0 netdevsim1: renamed from eth1 04:18:24 executing program 4: unshare(0x400) r0 = openat$vhost_vsock(0xffffffffffffff9c, &(0x7f0000000000)='/dev/vhost-vsock\x00', 0x2, 0x0) ioctl$VHOST_VSOCK_SET_GUEST_CID(r0, 0x4008af60, 0x0) [ 60.162792][ T8277] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.216328][ T8277] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.276184][ T8280] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.287032][ T8285] IPVS: ftp: loaded support on port[0] = 21 [ 60.322709][ T8277] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.330005][ T8277] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.338897][ T8277] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.346469][ T8277] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.362177][ T8288] IPVS: ftp: loaded support on port[0] = 21 04:18:24 executing program 5: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$netlink(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000180)='TIPCv2\x00') sendmsg$TIPC_NL_BEARER_ENABLE(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000100)={0x6c, r3, 0x1, 0x0, 0x0, {}, [@TIPC_NLA_BEARER={0x58, 0x1, [@TIPC_NLA_BEARER_NAME={0x10, 0x1, @udp='udp:syz0@'}, @TIPC_NLA_BEARER_UDP_OPTS={0x44, 0x4, {{0x20, 0x1, @in6={0xa, 0x0, 0x0, @mcast1={0xff, 0x1, [0x0, 0x0, 0x0, 0xfc000000]}, 0x8000}}, {0x20, 0x2, @in6={0xa, 0x0, 0x0, @mcast2}}}}]}]}, 0x6c}}, 0x0) [ 60.388220][ T8280] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.419868][ T8286] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.429662][ T8286] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.523126][ T8280] team0: Port device team_slave_0 added [ 60.531116][ T8280] team0: Port device team_slave_1 added [ 60.549867][ T8291] IPVS: ftp: loaded support on port[0] = 21 [ 60.585639][ T8283] chnl_net:caif_netlink_parms(): no params data found [ 60.687059][ T8280] device hsr_slave_0 entered promiscuous mode [ 60.714489][ T8280] device hsr_slave_1 entered promiscuous mode [ 60.765294][ T8280] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.807066][ T8291] chnl_net:caif_netlink_parms(): no params data found [ 60.871147][ T8283] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.879232][ T8283] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.887382][ T8283] device bridge_slave_0 entered promiscuous mode [ 60.897629][ T8283] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.904971][ T8283] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.912668][ T8283] device bridge_slave_1 entered promiscuous mode [ 60.943201][ T8277] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.967226][ T8283] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.985313][ T8285] chnl_net:caif_netlink_parms(): no params data found [ 60.995724][ T8283] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.009479][ T8288] chnl_net:caif_netlink_parms(): no params data found [ 61.046850][ T8280] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 61.096437][ T8280] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 61.146208][ T8280] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 61.189038][ T8280] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 61.243645][ T8283] team0: Port device team_slave_0 added [ 61.254858][ T8283] team0: Port device team_slave_1 added [ 61.263864][ T8291] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.271725][ T8291] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.279973][ T8291] device bridge_slave_0 entered promiscuous mode [ 61.288219][ T8291] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.295384][ T8291] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.303128][ T8291] device bridge_slave_1 entered promiscuous mode [ 61.337333][ T8277] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.357390][ T8291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.397913][ T8283] device hsr_slave_0 entered promiscuous mode [ 61.464625][ T8283] device hsr_slave_1 entered promiscuous mode [ 61.504368][ T8283] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.532692][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.543303][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.552114][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.563100][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.571708][ T8286] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.578880][ T8286] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.596002][ T8291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.620519][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.629510][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.637963][ T8286] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.645065][ T8286] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.653336][ T8288] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.661026][ T8288] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.668786][ T8288] device bridge_slave_0 entered promiscuous mode [ 61.680727][ T8288] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.687911][ T8288] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.695883][ T8288] device bridge_slave_1 entered promiscuous mode [ 61.705773][ T8285] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.712857][ T8285] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.721030][ T8285] device bridge_slave_0 entered promiscuous mode [ 61.730669][ T8285] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.738253][ T8285] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.746323][ T8285] device bridge_slave_1 entered promiscuous mode [ 61.768590][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.787352][ T8291] team0: Port device team_slave_0 added [ 61.795306][ T8291] team0: Port device team_slave_1 added [ 61.809772][ T8283] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.885527][ T8285] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.901453][ T8285] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.919499][ T8283] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.976912][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.986499][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.995688][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.004538][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.014647][ T8288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.077774][ T8291] device hsr_slave_0 entered promiscuous mode [ 62.134521][ T8291] device hsr_slave_1 entered promiscuous mode [ 62.184388][ T8291] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.193734][ T8283] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 62.238279][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.247075][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.259052][ T8288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.272377][ T8285] team0: Port device team_slave_0 added [ 62.289379][ T8283] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 62.338844][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.347248][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.361986][ T8285] team0: Port device team_slave_1 added [ 62.384302][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.392567][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.410550][ T8288] team0: Port device team_slave_0 added [ 62.422348][ T8288] team0: Port device team_slave_1 added [ 62.430516][ T8291] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 62.472490][ T8277] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.490645][ T8291] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 62.575964][ T8285] device hsr_slave_0 entered promiscuous mode [ 62.624797][ T8285] device hsr_slave_1 entered promiscuous mode [ 62.684385][ T8285] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.755993][ T8288] device hsr_slave_0 entered promiscuous mode [ 62.804683][ T8288] device hsr_slave_1 entered promiscuous mode [ 62.844396][ T8288] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.869117][ T8291] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.930370][ T8291] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 63.026082][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.034072][ T2594] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.049555][ T8285] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 63.096686][ T8285] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 63.161643][ T8277] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.180003][ T8285] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 63.228431][ T8285] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 63.311665][ T8280] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.319239][ T8288] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.376323][ T8288] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 63.416500][ T8288] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 63.476587][ T8288] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 168.524109][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 168.531171][ C1] (detected by 1, t=10502 jiffies, g=6377, q=132) [ 168.537673][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953984-4294943481), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 168.551021][ C1] kworker/u4:4 R running task 27704 232 2 0x80004008 [ 168.558959][ C1] Workqueue: 0x0 (events_unbound) [ 168.564055][ C1] Call Trace: [ 168.567327][ C1] [ 168.570175][ C1] sched_show_task+0x40f/0x560 [ 168.574936][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 168.580216][ C1] update_process_times+0x12d/0x180 [ 168.585406][ C1] tick_sched_timer+0x263/0x420 [ 168.590252][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.595798][ C1] __hrtimer_run_queues+0x403/0x840 [ 168.600995][ C1] hrtimer_interrupt+0x38c/0xda0 [ 168.605936][ C1] ? debug_smp_processor_id+0x9/0x20 [ 168.611213][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 168.616750][ C1] apic_timer_interrupt+0xf/0x20 [ 168.621756][ C1] [ 168.624702][ C1] RIP: 0010:mod_memcg_page_state+0x3d/0x190 [ 168.630679][ C1] Code: 28 2e 00 48 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 80 3c 20 00 74 08 48 89 df e8 b6 9f 69 00 48 8b 1b <48> 85 db 0f 84 d8 00 00 00 48 c7 c0 20 96 0a 89 48 c1 e8 03 42 80 [ 168.650286][ C1] RSP: 0018:ffffc90001a47c00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 168.658688][ C1] RAX: 1ffffd40004b93f7 RBX: 0000000000000000 RCX: ffff8880a92cc500 [ 168.666653][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00025c9f80 [ 168.674629][ C1] RBP: ffffc90001a47c20 R08: dffffc0000000000 R09: fffffbfff120248a [ 168.682605][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: dffffc0000000000 [ 168.690587][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888094d01668 [ 168.698621][ C1] free_thread_stack+0x168/0x590 [ 168.703554][ C1] put_task_stack+0xa3/0x130 [ 168.708131][ C1] finish_task_switch+0x3f1/0x550 [ 168.713152][ C1] __schedule+0x9a8/0xcc0 [ 168.717565][ C1] schedule+0x181/0x210 [ 168.721712][ C1] worker_thread+0x10d6/0x1630 [ 168.726484][ C1] kthread+0x332/0x350 [ 168.730537][ C1] ? rcu_lock_release+0x30/0x30 [ 168.735374][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.739951][ C1] ret_from_fork+0x24/0x30 [ 168.744374][ C1] rcu: rcu_preempt kthread starved for 10524 jiffies! g6377 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 168.755459][ C1] rcu: RCU grace-period kthread stack dump: [ 168.761334][ C1] rcu_preempt R running task 28824 10 2 0x80004000 [ 168.769221][ C1] Call Trace: [ 168.772502][ C1] __schedule+0x9a0/0xcc0 [ 168.776833][ C1] schedule+0x181/0x210 [ 168.781078][ C1] schedule_timeout+0x14f/0x240 [ 168.785915][ C1] ? run_local_timers+0x120/0x120 [ 168.790930][ C1] rcu_gp_kthread+0xed8/0x1770 [ 168.795691][ C1] kthread+0x332/0x350 [ 168.799745][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 168.805797][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.810373][ C1] ret_from_fork+0x24/0x30