Warning: Permanently added '10.128.0.214' (ECDSA) to the list of known hosts.
2019/10/22 23:17:38 fuzzer started
2019/10/22 23:17:38 dialing manager at 10.128.0.105:33369
2019/10/22 23:17:38 syscalls: 2524
2019/10/22 23:17:38 code coverage: enabled
2019/10/22 23:17:38 comparison tracing: enabled
2019/10/22 23:17:38 extra coverage: extra coverage is not supported by the kernel
2019/10/22 23:17:38 setuid sandbox: enabled
2019/10/22 23:17:38 namespace sandbox: enabled
2019/10/22 23:17:38 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 23:17:38 fault injection: enabled
2019/10/22 23:17:38 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 23:17:38 net packet injection: enabled
2019/10/22 23:17:38 net device setup: enabled
2019/10/22 23:17:38 concurrency sanitizer: enabled
syzkaller login: [   47.924608][    C0] ==================================================================
[   47.932752][    C0] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct
[   47.941224][    C0] 
[   47.943536][    C0] write to 0xffff888123449508 of 4 bytes by task 7184 on cpu 1:
[   47.951153][    C0]  __nf_ct_refresh_acct+0xfb/0x1b0
[   47.956329][    C0]  nf_conntrack_tcp_packet+0xd40/0x3390
[   47.961849][    C0]  nf_conntrack_in+0x410/0xa80
[   47.966676][    C0]  ipv4_conntrack_local+0xbe/0x130
[   47.971850][    C0]  nf_hook_slow+0x83/0x160
[   47.976339][    C0]  __ip_local_out+0x1f7/0x2b0
[   47.981092][    C0]  ip_local_out+0x31/0x90
[   47.985416][    C0]  __ip_queue_xmit+0x3a8/0xa40
[   47.990159][    C0]  ip_queue_xmit+0x45/0x60
[   47.994829][    C0]  __tcp_transmit_skb+0xe81/0x1d60
[   47.999915][    C0]  __tcp_send_ack+0x246/0x300
[   48.004656][    C0]  tcp_send_ack+0x34/0x40
[   48.009360][    C0]  tcp_cleanup_rbuf+0x130/0x360
[   48.014278][    C0]  tcp_recvmsg+0x633/0x1a30
[   48.018758][    C0] 
[   48.021065][    C0] read to 0xffff888123449508 of 4 bytes by interrupt on cpu 0:
[   48.028583][    C0]  __nf_conntrack_find_get+0x284/0x880
[   48.034018][    C0]  nf_conntrack_in+0x2ef/0xa80
[   48.038843][    C0]  ipv4_conntrack_in+0x27/0x40
[   48.044624][    C0]  nf_hook_slow+0x83/0x160
[   48.049028][    C0]  ip_rcv+0x12f/0x1a0
[   48.052998][    C0]  __netif_receive_skb_one_core+0xa7/0xe0
[   48.058705][    C0]  __netif_receive_skb+0x37/0xf0
[   48.063622][    C0]  netif_receive_skb_internal+0x59/0x190
[   48.069245][    C0]  napi_gro_receive+0x28f/0x330
[   48.076478][    C0]  receive_buf+0x284/0x30b0
[   48.081156][    C0]  virtnet_poll+0x436/0x7d0
[   48.085766][    C0]  net_rx_action+0x3ae/0xa90
[   48.090497][    C0]  __do_softirq+0x115/0x33f
[   48.095326][    C0] 
[   48.097657][    C0] Reported by Kernel Concurrency Sanitizer on:
[   48.104002][    C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc3+ #0
[   48.111608][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.122312][    C0] ==================================================================
[   48.130358][    C0] Kernel panic - not syncing: panic_on_warn set ...
[   48.137222][    C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc3+ #0
[   48.144851][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.155865][    C0] Call Trace:
[   48.159178][    C0]  dump_stack+0xf5/0x159
[   48.163532][    C0]  panic+0x210/0x640
[   48.168122][    C0]  ? napi_gro_receive+0x28f/0x330
[   48.173136][    C0]  ? vprintk_func+0x8d/0x140
[   48.178076][    C0]  kcsan_report.cold+0xc/0x10
[   48.182791][    C0]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   48.188991][    C0]  __tsan_read4+0x2c/0x30
[   48.193308][    C0]  __nf_conntrack_find_get+0x284/0x880
[   48.198893][    C0]  ? __tsan_write2+0x32/0x40
[   48.203785][    C0]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   48.209506][    C0]  nf_conntrack_in+0x2ef/0xa80
[   48.214270][    C0]  ipv4_conntrack_in+0x27/0x40
[   48.219038][    C0]  nf_hook_slow+0x83/0x160
[   48.223544][    C0]  ? nf_ct_bridge_unregister+0x70/0x70
[   48.229062][    C0]  ip_rcv+0x12f/0x1a0
[   48.233404][    C0]  ? ip_sublist_rcv+0x5e0/0x5e0
[   48.238427][    C0]  ? ip_local_deliver+0x210/0x210
[   48.243452][    C0]  __netif_receive_skb_one_core+0xa7/0xe0
[   48.249241][    C0]  __netif_receive_skb+0x37/0xf0
[   48.254689][    C0]  netif_receive_skb_internal+0x59/0x190
[   48.260474][    C0]  napi_gro_receive+0x28f/0x330
[   48.265302][    C0]  receive_buf+0x284/0x30b0
[   48.270060][    C0]  ? __tsan_write8+0x32/0x40
[   48.274645][    C0]  ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[   48.282779][    C0]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   48.288757][    C0]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   48.294464][    C0]  virtnet_poll+0x436/0x7d0
[   48.298966][    C0]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[   48.305404][    C0]  net_rx_action+0x3ae/0xa90
[   48.310333][    C0]  __do_softirq+0x115/0x33f
[   48.315274][    C0]  ? takeover_tasklets+0x250/0x250
[   48.321089][    C0]  run_ksoftirqd+0x46/0x60
[   48.325500][    C0]  smpboot_thread_fn+0x37d/0x4a0
[   48.330597][    C0]  kthread+0x1d4/0x200
[   48.335350][    C0]  ? constant_test_bit.constprop.0+0x30/0x30
[   48.341936][    C0]  ? kthread_stop+0x2d0/0x2d0
[   48.346900][    C0]  ret_from_fork+0x1f/0x30
[   48.353007][    C0] Kernel Offset: disabled
[   48.357457][    C0] Rebooting in 86400 seconds..