[info] Using makefile-style concurrent boot in runlevel 2. [ 58.263510][ T26] audit: type=1800 audit(1568415771.861:21): pid=9358 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 58.312348][ T26] audit: type=1800 audit(1568415771.861:22): pid=9358 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.59' (ECDSA) to the list of known hosts. syzkaller login: [ 266.612707][ T9508] IPVS: ftp: loaded support on port[0] = 21 [ 266.652599][ T9508] chnl_net:caif_netlink_parms(): no params data found [ 266.673364][ T9508] bridge0: port 1(bridge_slave_0) entered blocking state [ 266.680956][ T9508] bridge0: port 1(bridge_slave_0) entered disabled state [ 266.688565][ T9508] device bridge_slave_0 entered promiscuous mode [ 266.695989][ T9508] bridge0: port 2(bridge_slave_1) entered blocking state [ 266.703211][ T9508] bridge0: port 2(bridge_slave_1) entered disabled state [ 266.710758][ T9508] device bridge_slave_1 entered promiscuous mode [ 266.723173][ T9508] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 266.733797][ T9508] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 266.749563][ T9508] team0: Port device team_slave_0 added [ 266.756326][ T9508] team0: Port device team_slave_1 added [ 266.838639][ T9508] device hsr_slave_0 entered promiscuous mode [ 266.887341][ T9508] device hsr_slave_1 entered promiscuous mode [ 266.961837][ T9508] bridge0: port 2(bridge_slave_1) entered blocking state [ 266.969134][ T9508] bridge0: port 2(bridge_slave_1) entered forwarding state [ 266.976428][ T9508] bridge0: port 1(bridge_slave_0) entered blocking state [ 266.983930][ T9508] bridge0: port 1(bridge_slave_0) entered forwarding state [ 267.007681][ T9508] 8021q: adding VLAN 0 to HW filter on device bond0 [ 267.019177][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 267.038558][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 267.046222][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 267.054212][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 267.064212][ T9508] 8021q: adding VLAN 0 to HW filter on device team0 [ 267.074678][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 267.083651][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 267.091236][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 267.108995][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 267.117769][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 267.125201][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 267.133570][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 267.141960][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 267.150389][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 267.158997][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 267.168945][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 267.178500][ T9508] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 267.192174][ T9508] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 372.216900][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 372.223711][ C0] rcu: 0-....: (10500 ticks this GP) idle=896/1/0x4000000000000002 softirq=9279/9279 fqs=5250 [ 372.234124][ C0] (t=10502 jiffies g=8173 q=385) [ 372.239515][ C0] NMI backtrace for cpu 0 [ 372.244035][ C0] CPU: 0 PID: 9508 Comm: syz-executor249 Not tainted 5.3.0-rc8+ #0 [ 372.251917][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 372.261964][ C0] Call Trace: [ 372.265229][ C0] [ 372.268179][ C0] dump_stack+0x1d8/0x2f8 [ 372.272494][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 372.277413][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 372.283617][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 372.289959][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 372.295926][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 372.301882][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 372.307098][ C0] rcu_sched_clock_irq+0xb95/0x16d0 [ 372.312311][ C0] ? trace_hardirqs_off+0x74/0x80 [ 372.317449][ C0] update_process_times+0x134/0x190 [ 372.322761][ C0] tick_sched_timer+0x263/0x420 [ 372.327596][ C0] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 372.333157][ C0] __hrtimer_run_queues+0x403/0x850 [ 372.338385][ C0] hrtimer_interrupt+0x38c/0xda0 [ 372.343421][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 372.348966][ C0] apic_timer_interrupt+0xf/0x20 [ 372.353884][ C0] [ 372.356868][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 372.362926][ C0] Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 64 69 4a 07 48 89 de e8 84 89 38 00 5b 5d c3 90 <48> 8b 04 24 65 48 8b 0c 25 c0 fd 01 00 65 8b 15 a8 70 8e 7e f7 c2 [ 372.382653][ C0] RSP: 0018:ffff888094cff5e8 EFLAGS: 00000283 ORIG_RAX: ffffffffffffff13 [ 372.391082][ C0] RAX: ffff888094229078 RBX: ffff888094229078 RCX: ffff8880a7cb24c0 [ 372.399034][ C0] RDX: 0000000000000000 RSI: ffff888094229110 RDI: ffff888094229080 [ 372.407000][ C0] RBP: ffff888094cff698 R08: ffffffff860c5d6a R09: 0000000000000000 [ 372.415236][ C0] R10: fffffbfff117be8d R11: 0000000000000000 R12: dffffc0000000000 [ 372.423206][ C0] R13: ffff888094228d80 R14: ffff888094229110 R15: ffff888094229110 [ 372.431261][ C0] ? hhf_dequeue+0x15a/0xaa0 [ 372.435836][ C0] ? hhf_dequeue+0x108/0xaa0 [ 372.440451][ C0] __qdisc_run+0x217/0x1b30 [ 372.444966][ C0] ? dev_queue_xmit+0x17/0x20 [ 372.449641][ C0] __dev_queue_xmit+0x1161/0x3020 [ 372.454687][ C0] ? __copy_skb_header+0x41f/0x540 [ 372.459826][ C0] ? __kasan_check_write+0x14/0x20 [ 372.464919][ C0] dev_queue_xmit+0x17/0x20 [ 372.469409][ C0] netlink_deliver_tap+0x619/0x880 [ 372.474523][ C0] netlink_unicast+0x5d4/0x900 [ 372.479296][ C0] netlink_ack+0x729/0xa10 [ 372.483699][ C0] netlink_rcv_skb+0x238/0x3d0 [ 372.488529][ C0] ? rtnetlink_bind+0x80/0x80 [ 372.493211][ C0] rtnetlink_rcv+0x1c/0x20 [ 372.497609][ C0] netlink_unicast+0x787/0x900 [ 372.502486][ C0] netlink_sendmsg+0x993/0xc50 [ 372.507237][ C0] ? netlink_getsockopt+0x9f0/0x9f0 [ 372.512594][ C0] ___sys_sendmsg+0x60d/0x910 [ 372.517258][ C0] ? sock_do_ioctl+0x212/0x260 [ 372.522098][ C0] ? sock_ioctl+0x461/0x680 [ 372.526623][ C0] ? check_preemption_disabled+0xb7/0x2a0 [ 372.532326][ C0] ? sock_poll+0x310/0x310 [ 372.536851][ C0] ? __fdget+0x156/0x200 [ 372.541178][ C0] __x64_sys_sendmsg+0x17c/0x200 [ 372.546125][ C0] do_syscall_64+0xfe/0x140 [ 372.550612][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 372.556595][ C0] RIP: 0033:0x441b19 [ 372.560502][ C0] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 372.580103][ C0] RSP: 002b:00007ffe59d2e1a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 372.588534][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b19 [ 372.596508][ C0] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 372.604482][ C0] RBP: 00007ffe59d2e1c0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 372.612449][ C0] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 372.620400][ C0] R13: 00000000004030b0 R14: 0000000000000000 R15: 0000000000000000