Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts.
2019/10/17 03:13:33 fuzzer started
2019/10/17 03:13:34 dialing manager at 10.128.0.105:33899
2019/10/17 03:13:34 syscalls: 2524
2019/10/17 03:13:34 code coverage: enabled
2019/10/17 03:13:34 comparison tracing: enabled
2019/10/17 03:13:34 extra coverage: extra coverage is not supported by the kernel
2019/10/17 03:13:34 setuid sandbox: enabled
2019/10/17 03:13:34 namespace sandbox: enabled
2019/10/17 03:13:34 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/17 03:13:34 fault injection: enabled
2019/10/17 03:13:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/17 03:13:34 net packet injection: enabled
2019/10/17 03:13:34 net device setup: enabled
2019/10/17 03:13:34 concurrency sanitizer: enabled
syzkaller login: [ 48.248178][ C0] ==================================================================
[ 48.256638][ C0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 48.265811][ C0]
[ 48.268134][ C0] write to 0xffffffff86042008 of 8 bytes by interrupt on cpu 1:
[ 48.275769][ C0] tick_do_update_jiffies64+0x105/0x260
[ 48.281369][ C0] tick_sched_do_timer+0xd4/0xe0
[ 48.286440][ C0] tick_sched_timer+0x43/0xe0
[ 48.291348][ C0] __hrtimer_run_queues+0x288/0x600
[ 48.296553][ C0] hrtimer_interrupt+0x22a/0x480
[ 48.301477][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 48.307087][ C0] apic_timer_interrupt+0xf/0x20
[ 48.312191][ C0] __kcsan_check_watchpoint+0x95/0x180
[ 48.317645][ C0] __tsan_read4+0x15/0x30
[ 48.321977][ C0] hash_conntrack_raw+0x4f/0x280
[ 48.326973][ C0] nf_conntrack_in+0x2d3/0xa80
[ 48.331847][ C0] ipv4_conntrack_local+0xbe/0x130
[ 48.336944][ C0] nf_hook_slow+0x83/0x160
[ 48.341365][ C0] __ip_local_out+0x1f7/0x2b0
[ 48.346032][ C0]
[ 48.348346][ C0] read to 0xffffffff86042008 of 8 bytes by interrupt on cpu 0:
[ 48.355871][ C0] tick_do_update_jiffies64+0x2b/0x260
[ 48.361401][ C0] tick_sched_do_timer+0xd4/0xe0
[ 48.366332][ C0] tick_sched_timer+0x43/0xe0
[ 48.370989][ C0] __hrtimer_run_queues+0x288/0x600
[ 48.376253][ C0] hrtimer_interrupt+0x22a/0x480
[ 48.381176][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 48.386632][ C0] apic_timer_interrupt+0xf/0x20
[ 48.391551][ C0] tcp_v4_rcv+0x19e/0x1bb0
[ 48.395966][ C0] ip_protocol_deliver_rcu+0x4d/0x420
[ 48.401342][ C0] ip_local_deliver_finish+0x110/0x140
[ 48.406950][ C0] ip_local_deliver+0x133/0x210
[ 48.411804][ C0] ip_rcv_finish+0x121/0x160
[ 48.416381][ C0] ip_rcv+0x18f/0x1a0
[ 48.420338][ C0]
[ 48.422647][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 48.428785][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc3+ #0
[ 48.436047][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 48.446106][ C0] ==================================================================
[ 48.454155][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 48.460741][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc3+ #0
[ 48.468043][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 48.478169][ C0] Call Trace:
[ 48.481442][ C0]
[ 48.484285][ C0] dump_stack+0xf5/0x159
[ 48.488523][ C0] panic+0x210/0x640
[ 48.492407][ C0] ? ip_protocol_deliver_rcu+0x4d/0x420
[ 48.497947][ C0] ? vprintk_func+0x8d/0x140
[ 48.502541][ C0] kcsan_report.cold+0xc/0x1b
[ 48.507205][ C0] __kcsan_setup_watchpoint+0x3ee/0x510
[ 48.512928][ C0] ? __kcsan_setup_watchpoint+0x96/0x510
[ 48.518600][ C0] __tsan_read8+0x2c/0x30
[ 48.522926][ C0] tick_do_update_jiffies64+0x2b/0x260
[ 48.528387][ C0] tick_sched_do_timer+0xd4/0xe0
[ 48.533331][ C0] tick_sched_timer+0x43/0xe0
[ 48.538002][ C0] __hrtimer_run_queues+0x288/0x600
[ 48.543280][ C0] ? tick_sched_do_timer+0xe0/0xe0
[ 48.548385][ C0] hrtimer_interrupt+0x22a/0x480
[ 48.553320][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 48.558764][ C0] ? do_IRQ+0xcb/0x180
[ 48.562828][ C0] apic_timer_interrupt+0xf/0x20
[ 48.567745][ C0]
[ 48.570687][ C0] RIP: 0010:tcp_v4_rcv+0x19e/0x1bb0
[ 48.575869][ C0] Code: ee 29 de 89 75 b8 e8 d1 44 51 fd 8b 75 b8 83 fe 13 0f 86 35 08 00 00 e8 40 43 51 fd 49 8d 87 c8 00 00 00 48 89 c7 48 89 45 a0 4d 42 5e fd 49 8b 9f c8 00 00 00 48 8d 7b 0c e8 1d 3f 5e fd 0f
[ 48.595549][ C0] RSP: 0018:ffffc90000cb3810 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
[ 48.603945][ C0] RAX: ffff8881230439c8 RBX: 0000000000001fa2 RCX: ffffffff83f47c6f
[ 48.611903][ C0] RDX: 0000000000000100 RSI: ffffffff83f47c80 RDI: ffff8881230439c8
[ 48.619958][ C0] RBP: ffffc90000cb38d8 R08: ffff88812b371100 R09: 0000888123043977
[ 48.627914][ C0] R10: 00000000aaaaaaab R11: ffffffff86045c30 R12: ffff888123043974
[ 48.635894][ C0] R13: 0000000000002000 R14: ffff888123043980 R15: ffff888123043900
[ 48.643877][ C0] ? tcp_v4_rcv+0x17f/0x1bb0
[ 48.648454][ C0] ? tcp_v4_rcv+0x190/0x1bb0
[ 48.653036][ C0] ? __tsan_read8+0x2c/0x30
[ 48.657524][ C0] ? raw_local_deliver+0x49c/0x5b3
[ 48.662624][ C0] ip_protocol_deliver_rcu+0x4d/0x420
[ 48.668003][ C0] ip_local_deliver_finish+0x110/0x140
[ 48.673462][ C0] ip_local_deliver+0x133/0x210
[ 48.678299][ C0] ? ip_protocol_deliver_rcu+0x420/0x420
[ 48.684353][ C0] ip_rcv_finish+0x121/0x160
[ 48.688925][ C0] ip_rcv+0x18f/0x1a0
[ 48.692898][ C0] ? ip_sublist_rcv+0x5e0/0x5e0
[ 48.697734][ C0] ? ip_local_deliver+0x210/0x210
[ 48.702755][ C0] __netif_receive_skb_one_core+0xa7/0xe0
[ 48.708589][ C0] __netif_receive_skb+0x37/0xf0
[ 48.713516][ C0] netif_receive_skb_internal+0x59/0x190
[ 48.719136][ C0] napi_gro_receive+0x28f/0x330
[ 48.723995][ C0] receive_buf+0x284/0x30b0
[ 48.728482][ C0] ? __tsan_write8+0x32/0x40
[ 48.733079][ C0] ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[ 48.738525][ C0] ? __kcsan_setup_watchpoint+0x96/0x510
[ 48.744286][ C0] ? __kcsan_setup_watchpoint+0x96/0x510
[ 48.749924][ C0] virtnet_poll+0x436/0x7d0
[ 48.754427][ C0] net_rx_action+0x3ae/0xa90
[ 48.759007][ C0] __do_softirq+0x115/0x33f
[ 48.763501][ C0] ? takeover_tasklets+0x250/0x250
[ 48.768610][ C0] run_ksoftirqd+0x46/0x60
[ 48.773027][ C0] smpboot_thread_fn+0x37d/0x4a0
[ 48.777950][ C0] kthread+0x1d4/0x200
[ 48.782220][ C0] ? constant_test_bit.constprop.0+0x30/0x30
[ 48.788207][ C0] ? kthread_stop+0x2d0/0x2d0
[ 48.792881][ C0] ret_from_fork+0x1f/0x30
[ 48.798865][ C0] Kernel Offset: disabled
[ 48.805922][ C0] Rebooting in 86400 seconds..