Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts.
2019/10/22 12:21:01 fuzzer started
2019/10/22 12:21:02 dialing manager at 10.128.0.105:37053
2019/10/22 12:21:02 syscalls: 2524
2019/10/22 12:21:02 code coverage: enabled
2019/10/22 12:21:02 comparison tracing: enabled
2019/10/22 12:21:02 extra coverage: extra coverage is not supported by the kernel
2019/10/22 12:21:02 setuid sandbox: enabled
2019/10/22 12:21:02 namespace sandbox: enabled
2019/10/22 12:21:02 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 12:21:02 fault injection: enabled
2019/10/22 12:21:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 12:21:02 net packet injection: enabled
2019/10/22 12:21:02 net device setup: enabled
2019/10/22 12:21:02 concurrency sanitizer: enabled
syzkaller login: [   43.023631][    C1] ==================================================================
[   43.031766][    C1] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct
[   43.040231][    C1] 
[   43.042586][    C1] write to 0xffff8881247ae408 of 4 bytes by task 7185 on cpu 0:
[   43.050195][    C1]  __nf_ct_refresh_acct+0xfb/0x1b0
[   43.055285][    C1]  nf_conntrack_tcp_packet+0xd40/0x3390
[   43.060855][    C1]  nf_conntrack_in+0x410/0xa80
[   43.065594][    C1]  ipv4_conntrack_local+0xbe/0x130
[   43.070695][    C1]  nf_hook_slow+0x83/0x160
[   43.075085][    C1]  __ip_local_out+0x1f7/0x2b0
[   43.079737][    C1]  ip_local_out+0x31/0x90
[   43.084049][    C1]  __ip_queue_xmit+0x3a8/0xa40
[   43.088798][    C1]  ip_queue_xmit+0x45/0x60
[   43.093213][    C1]  __tcp_transmit_skb+0xe81/0x1d60
[   43.098400][    C1]  __tcp_send_ack+0x246/0x300
[   43.103055][    C1]  tcp_send_ack+0x34/0x40
[   43.107366][    C1]  tcp_cleanup_rbuf+0x130/0x360
[   43.112193][    C1]  tcp_recvmsg+0x633/0x1a30
[   43.116664][    C1] 
[   43.118978][    C1] read to 0xffff8881247ae408 of 4 bytes by interrupt on cpu 1:
[   43.127204][    C1]  __nf_conntrack_find_get+0x284/0x880
[   43.132637][    C1]  nf_conntrack_in+0x2ef/0xa80
[   43.137502][    C1]  ipv4_conntrack_in+0x27/0x40
[   43.142263][    C1]  nf_hook_slow+0x83/0x160
[   43.146665][    C1]  ip_rcv+0x12f/0x1a0
[   43.152127][    C1]  __netif_receive_skb_one_core+0xa7/0xe0
[   43.158027][    C1]  __netif_receive_skb+0x37/0xf0
[   43.163131][    C1]  netif_receive_skb_internal+0x59/0x190
[   43.168745][    C1]  napi_gro_receive+0x28f/0x330
[   43.173577][    C1]  receive_buf+0x284/0x30b0
[   43.178080][    C1]  virtnet_poll+0x436/0x7d0
[   43.182561][    C1]  net_rx_action+0x3ae/0xa90
[   43.187142][    C1]  __do_softirq+0x115/0x33f
[   43.191614][    C1] 
[   43.193915][    C1] Reported by Kernel Concurrency Sanitizer on:
[   43.200054][    C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0
[   43.207395][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.217438][    C1] ==================================================================
[   43.225475][    C1] Kernel panic - not syncing: panic_on_warn set ...
[   43.233353][    C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0
[   43.240695][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.251779][    C1] Call Trace:
[   43.255061][    C1]  dump_stack+0xf5/0x159
[   43.259326][    C1]  panic+0x210/0x640
[   43.263231][    C1]  ? napi_gro_receive+0x28f/0x330
[   43.268248][    C1]  ? vprintk_func+0x8d/0x140
[   43.272859][    C1]  kcsan_report.cold+0xc/0x10
[   43.277526][    C1]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   43.283050][    C1]  __tsan_read4+0x2c/0x30
[   43.287372][    C1]  __nf_conntrack_find_get+0x284/0x880
[   43.292894][    C1]  ? __tsan_write2+0x32/0x40
[   43.297462][    C1]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   43.303087][    C1]  nf_conntrack_in+0x2ef/0xa80
[   43.307852][    C1]  ipv4_conntrack_in+0x27/0x40
[   43.312595][    C1]  nf_hook_slow+0x83/0x160
[   43.317171][    C1]  ? nf_ct_bridge_unregister+0x70/0x70
[   43.322614][    C1]  ip_rcv+0x12f/0x1a0
[   43.326576][    C1]  ? ip_sublist_rcv+0x5e0/0x5e0
[   43.331405][    C1]  ? ip_local_deliver+0x210/0x210
[   43.336410][    C1]  __netif_receive_skb_one_core+0xa7/0xe0
[   43.342133][    C1]  __netif_receive_skb+0x37/0xf0
[   43.347050][    C1]  netif_receive_skb_internal+0x59/0x190
[   43.352669][    C1]  napi_gro_receive+0x28f/0x330
[   43.357597][    C1]  receive_buf+0x284/0x30b0
[   43.362080][    C1]  ? __tsan_write8+0x32/0x40
[   43.366652][    C1]  ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[   43.372087][    C1]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   43.377696][    C1]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   43.383394][    C1]  virtnet_poll+0x436/0x7d0
[   43.387877][    C1]  ? __sanitizer_cov_trace_cmp2+0x18/0x20
[   43.393579][    C1]  net_rx_action+0x3ae/0xa90
[   43.398153][    C1]  __do_softirq+0x115/0x33f
[   43.403854][    C1]  ? takeover_tasklets+0x250/0x250
[   43.408942][    C1]  run_ksoftirqd+0x46/0x60
[   43.413347][    C1]  smpboot_thread_fn+0x37d/0x4a0
[   43.418285][    C1]  kthread+0x1d4/0x200
[   43.422334][    C1]  ? constant_test_bit.constprop.0+0x30/0x30
[   43.428299][    C1]  ? kthread_stop+0x2d0/0x2d0
[   43.432952][    C1]  ret_from_fork+0x1f/0x30
[   43.438980][    C1] Kernel Offset: disabled
[   43.443316][    C1] Rebooting in 86400 seconds..