Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts.
2019/10/22 05:07:02 fuzzer started
2019/10/22 05:07:03 dialing manager at 10.128.0.105:37053
2019/10/22 05:07:03 syscalls: 2524
2019/10/22 05:07:03 code coverage: enabled
2019/10/22 05:07:03 comparison tracing: enabled
2019/10/22 05:07:03 extra coverage: extra coverage is not supported by the kernel
2019/10/22 05:07:03 setuid sandbox: enabled
2019/10/22 05:07:03 namespace sandbox: enabled
2019/10/22 05:07:03 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 05:07:03 fault injection: enabled
2019/10/22 05:07:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 05:07:03 net packet injection: enabled
2019/10/22 05:07:03 net device setup: enabled
2019/10/22 05:07:03 concurrency sanitizer: enabled
syzkaller login: [   46.903285][    C1] ==================================================================
[   46.911524][    C1] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct
[   46.919999][    C1] 
[   46.922308][    C1] write to 0xffff888123717808 of 4 bytes by task 7125 on cpu 0:
[   46.929910][    C1]  __nf_ct_refresh_acct+0xfb/0x1b0
[   46.934994][    C1]  nf_conntrack_tcp_packet+0xd40/0x3390
[   46.940600][    C1]  nf_conntrack_in+0x410/0xa80
[   46.945339][    C1]  ipv4_conntrack_local+0xbe/0x130
[   46.950424][    C1]  nf_hook_slow+0x83/0x160
[   46.954815][    C1]  __ip_local_out+0x1f7/0x2b0
[   46.959464][    C1]  ip_local_out+0x31/0x90
[   46.963767][    C1]  __ip_queue_xmit+0x3a8/0xa40
[   46.968506][    C1]  ip_queue_xmit+0x45/0x60
[   46.972899][    C1]  __tcp_transmit_skb+0xe81/0x1d60
[   46.977982][    C1]  __tcp_send_ack+0x246/0x300
[   46.982629][    C1]  tcp_send_ack+0x34/0x40
[   46.986933][    C1]  tcp_cleanup_rbuf+0x130/0x360
[   46.991762][    C1]  tcp_recvmsg+0x633/0x1a30
[   46.996268][    C1] 
[   46.998590][    C1] read to 0xffff888123717808 of 4 bytes by interrupt on cpu 1:
[   47.006124][    C1]  __nf_conntrack_find_get+0x284/0x880
[   47.011558][    C1]  nf_conntrack_in+0x2ef/0xa80
[   47.016299][    C1]  ipv4_conntrack_in+0x27/0x40
[   47.021037][    C1]  nf_hook_slow+0x83/0x160
[   47.025425][    C1]  ip_rcv+0x12f/0x1a0
[   47.029395][    C1]  __netif_receive_skb_one_core+0xa7/0xe0
[   47.035093][    C1]  __netif_receive_skb+0x37/0xf0
[   47.040022][    C1]  netif_receive_skb_internal+0x59/0x190
[   47.045635][    C1]  napi_gro_receive+0x28f/0x330
[   47.050470][    C1]  receive_buf+0x284/0x30b0
[   47.054950][    C1]  virtnet_poll+0x436/0x7d0
[   47.059427][    C1]  net_rx_action+0x3ae/0xa90
[   47.063992][    C1]  __do_softirq+0x115/0x33f
[   47.068473][    C1] 
[   47.070775][    C1] Reported by Kernel Concurrency Sanitizer on:
[   47.076909][    C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0
[   47.084249][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.094376][    C1] ==================================================================
[   47.102424][    C1] Kernel panic - not syncing: panic_on_warn set ...
[   47.108993][    C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0
[   47.116335][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.126362][    C1] Call Trace:
[   47.129644][    C1]  dump_stack+0xf5/0x159
[   47.133864][    C1]  panic+0x210/0x640
[   47.137741][    C1]  ? napi_gro_receive+0x28f/0x330
[   47.142742][    C1]  ? vprintk_func+0x8d/0x140
[   47.147308][    C1]  kcsan_report.cold+0xc/0x10
[   47.151975][    C1]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   47.157506][    C1]  __tsan_read4+0x2c/0x30
[   47.161814][    C1]  __nf_conntrack_find_get+0x284/0x880
[   47.167243][    C1]  ? __tsan_write2+0x32/0x40
[   47.171809][    C1]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   47.177421][    C1]  nf_conntrack_in+0x2ef/0xa80
[   47.182162][    C1]  ipv4_conntrack_in+0x27/0x40
[   47.186902][    C1]  nf_hook_slow+0x83/0x160
[   47.191293][    C1]  ? nf_ct_bridge_unregister+0x70/0x70
[   47.196728][    C1]  ip_rcv+0x12f/0x1a0
[   47.200686][    C1]  ? ip_sublist_rcv+0x5e0/0x5e0
[   47.205508][    C1]  ? ip_local_deliver+0x210/0x210
[   47.210507][    C1]  __netif_receive_skb_one_core+0xa7/0xe0
[   47.216204][    C1]  __netif_receive_skb+0x37/0xf0
[   47.221120][    C1]  netif_receive_skb_internal+0x59/0x190
[   47.226727][    C1]  napi_gro_receive+0x28f/0x330
[   47.231556][    C1]  receive_buf+0x284/0x30b0
[   47.236041][    C1]  ? __tsan_write8+0x32/0x40
[   47.240621][    C1]  ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[   47.246051][    C1]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   47.251655][    C1]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   47.257264][    C1]  virtnet_poll+0x436/0x7d0
[   47.261751][    C1]  net_rx_action+0x3ae/0xa90
[   47.266333][    C1]  __do_softirq+0x115/0x33f
[   47.270815][    C1]  ? takeover_tasklets+0x250/0x250
[   47.275903][    C1]  run_ksoftirqd+0x46/0x60
[   47.280292][    C1]  smpboot_thread_fn+0x37d/0x4a0
[   47.285215][    C1]  kthread+0x1d4/0x200
[   47.289260][    C1]  ? constant_test_bit.constprop.0+0x30/0x30
[   47.295226][    C1]  ? kthread_stop+0x2d0/0x2d0
[   47.299877][    C1]  ret_from_fork+0x1f/0x30
[   47.305626][    C1] Kernel Offset: disabled
[   47.309944][    C1] Rebooting in 86400 seconds..