Warning: Permanently added '10.128.0.7' (ECDSA) to the list of known hosts.
2019/10/04 12:18:46 fuzzer started
2019/10/04 12:18:48 dialing manager at 10.128.0.105:38119
2019/10/04 12:18:48 syscalls: 2523
2019/10/04 12:18:48 code coverage: enabled
2019/10/04 12:18:48 comparison tracing: enabled
2019/10/04 12:18:48 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:18:48 setuid sandbox: enabled
2019/10/04 12:18:48 namespace sandbox: enabled
2019/10/04 12:18:48 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:18:48 fault injection: enabled
2019/10/04 12:18:48 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:18:48 net packet injection: enabled
2019/10/04 12:18:48 net device setup: enabled
2019/10/04 12:18:48 concurrency sanitizer: enabled
syzkaller login: [   52.979500][    C1] ==================================================================
[   52.989359][    C1] BUG: KCSAN: data-race in __nf_conntrack_find_get+0x284/0x870 and __nf_ct_refresh_acct+0xfb/0x1b0
[   53.002607][    C1] 
[   53.005830][    C1] write to 0xffff88811ec7fa08 of 4 bytes by task 7212 on cpu 0:
[   53.015279][    C1]  __nf_ct_refresh_acct+0xfb/0x1b0
[   53.020701][    C1]  nf_conntrack_tcp_packet+0xd40/0x3390
[   53.027166][    C1]  nf_conntrack_in+0x410/0xaa0
[   53.031987][    C1]  ipv4_conntrack_local+0xbe/0x130
[   53.038076][    C1]  nf_hook_slow+0x83/0x160
[   53.043324][    C1]  __ip_local_out+0x1f7/0x2b0
[   53.048424][    C1]  ip_local_out+0x31/0x90
[   53.052906][    C1]  __ip_queue_xmit+0x3a8/0xa40
[   53.057965][    C1]  ip_queue_xmit+0x45/0x60
[   53.062824][    C1]  __tcp_transmit_skb+0xdeb/0x1cd0
[   53.068320][    C1]  __tcp_send_ack+0x246/0x300
[   53.073446][    C1]  tcp_send_ack+0x34/0x40
[   53.077850][    C1]  __tcp_ack_snd_check+0xd9/0x4e0
[   53.083696][    C1]  tcp_rcv_established+0xce9/0xf50
[   53.088882][    C1] 
[   53.091196][    C1] read to 0xffff88811ec7fa08 of 4 bytes by interrupt on cpu 1:
[   53.098726][    C1]  __nf_conntrack_find_get+0x284/0x870
[   53.104165][    C1]  nf_conntrack_in+0x2ef/0xaa0
[   53.109011][    C1]  ipv4_conntrack_in+0x27/0x40
[   53.114654][    C1]  nf_hook_slow+0x83/0x160
[   53.119926][    C1]  ip_rcv+0x12f/0x1a0
[   53.124234][    C1]  __netif_receive_skb_one_core+0xa7/0xe0
[   53.130824][    C1]  __netif_receive_skb+0x37/0xf0
[   53.136458][    C1]  netif_receive_skb_internal+0x59/0x190
[   53.143833][    C1]  napi_gro_receive+0x28f/0x330
[   53.149287][    C1]  receive_buf+0x284/0x30b0
[   53.154035][    C1]  virtnet_poll+0x436/0x7d0
[   53.159755][    C1]  net_rx_action+0x3ae/0xa50
[   53.164525][    C1]  __do_softirq+0x115/0x33f
[   53.169355][    C1] 
[   53.171673][    C1] Reported by Kernel Concurrency Sanitizer on:
[   53.178095][    C1] CPU: 1 PID: 7223 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   53.185602][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.196925][    C1] ==================================================================
[   53.205050][    C1] Kernel panic - not syncing: panic_on_warn set ...
[   53.212191][    C1] CPU: 1 PID: 7223 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   53.221482][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.231963][    C1] Call Trace:
[   53.235406][    C1]  <IRQ>
[   53.238393][    C1]  dump_stack+0xf5/0x159
[   53.243964][    C1]  panic+0x209/0x639
[   53.247865][    C1]  ? vprintk_func+0x8d/0x140
[   53.252532][    C1]  kcsan_report.cold+0x57/0xeb
[   53.257725][    C1]  __kcsan_setup_watchpoint+0x342/0x500
[   53.263365][    C1]  __tsan_read4+0x2c/0x30
[   53.268247][    C1]  __nf_conntrack_find_get+0x284/0x870
[   53.273840][    C1]  ? __tsan_write2+0x32/0x40
[   53.278428][    C1]  ? nf_ct_get_tuple+0x325/0x490
[   53.283375][    C1]  nf_conntrack_in+0x2ef/0xaa0
[   53.288310][    C1]  ipv4_conntrack_in+0x27/0x40
[   53.293085][    C1]  nf_hook_slow+0x83/0x160
[   53.298034][    C1]  ? nf_ct_l4proto_find+0xd0/0xd0
[   53.303756][    C1]  ip_rcv+0x12f/0x1a0
[   53.307824][    C1]  ? ip_sublist_rcv+0x5e0/0x5e0
[   53.312745][    C1]  ? ip_local_deliver+0x210/0x210
[   53.317767][    C1]  __netif_receive_skb_one_core+0xa7/0xe0
[   53.323647][    C1]  __netif_receive_skb+0x37/0xf0
[   53.328568][    C1]  netif_receive_skb_internal+0x59/0x190
[   53.334222][    C1]  napi_gro_receive+0x28f/0x330
[   53.339583][    C1]  receive_buf+0x284/0x30b0
[   53.344243][    C1]  ? __tsan_write8+0x32/0x40
[   53.348927][    C1]  ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[   53.354417][    C1]  ? virtqueue_get_buf+0x31/0x40
[   53.359346][    C1]  virtnet_poll+0x436/0x7d0
[   53.363929][    C1]  net_rx_action+0x3ae/0xa50
[   53.368527][    C1]  __do_softirq+0x115/0x33f
[   53.373122][    C1]  irq_exit+0xbb/0xe0
[   53.377292][    C1]  do_IRQ+0xdf/0x150
[   53.381177][    C1]  common_interrupt+0xf/0xf
[   53.385675][    C1]  </IRQ>
[   53.388771][    C1] RIP: 0033:0x4121aa
[   53.392774][    C1] Code: 24 88 00 00 00 48 89 94 24 90 00 00 00 48 8b 6c 24 48 48 83 c4 50 c3 48 29 fb 48 8b 56 68 48 39 d3 72 3b 0f b6 4e 66 48 d3 eb <80> f9 40 4d 19 c0 4c 21 c3 44 0f b7 46 5c 4c 0f af c3 0f b6 4e 67
[   53.412752][    C1] RSP: 002b:000000c42007be38 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffda
[   53.421737][    C1] RAX: 000000c420000000 RBX: 000000000000000b RCX: 0000000000000004
[   53.429813][    C1] RDX: 00000000000000b0 RSI: 00007fb5ce8a6008 RDI: 000000c420084000
[   53.438226][    C1] RBP: 000000c42007be80 R08: 0000000000000001 R09: 0000000000079f50
[   53.446207][    C1] R10: 0000000000000020 R11: 000000c4200840b0 R12: 000000c42025b800
[   53.454608][    C1] R13: 0000000000000049 R14: 0000000000000000 R15: 0000000000000000
[   53.464754][    C1] Kernel Offset: disabled
[   53.469145][    C1] Rebooting in 86400 seconds..