Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts.
2019/10/04 12:25:46 fuzzer started
2019/10/04 12:25:47 dialing manager at 10.128.0.105:38119
2019/10/04 12:25:47 syscalls: 2523
2019/10/04 12:25:47 code coverage: enabled
2019/10/04 12:25:47 comparison tracing: enabled
2019/10/04 12:25:47 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:25:47 setuid sandbox: enabled
2019/10/04 12:25:47 namespace sandbox: enabled
2019/10/04 12:25:47 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:25:47 fault injection: enabled
2019/10/04 12:25:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:25:47 net packet injection: enabled
2019/10/04 12:25:47 net device setup: enabled
2019/10/04 12:25:47 concurrency sanitizer: enabled
syzkaller login: [   51.350262][ T7266] ==================================================================
[   51.359003][ T7266] BUG: KCSAN: data-race in tcp_add_backlog+0x45a/0xcc0 and tcp_recvmsg+0x470/0x1a30
[   51.368351][ T7266] 
[   51.370993][ T7266] write to 0xffff88812182c9f8 of 8 bytes by interrupt on cpu 1:
[   51.378623][ T7266]  tcp_add_backlog+0x45a/0xcc0
[   51.383421][ T7266]  tcp_v4_rcv+0x1aba/0x1bf0
[   51.387920][ T7266]  ip_protocol_deliver_rcu+0x51/0x470
[   51.393291][ T7266]  ip_local_deliver_finish+0x110/0x140
[   51.398738][ T7266]  ip_local_deliver+0x133/0x210
[   51.403792][ T7266]  ip_rcv_finish+0x121/0x160
[   51.408484][ T7266]  ip_rcv+0x18f/0x1a0
[   51.412648][ T7266]  __netif_receive_skb_one_core+0xa7/0xe0
[   51.418357][ T7266]  __netif_receive_skb+0x37/0xf0
[   51.423375][ T7266]  netif_receive_skb_internal+0x59/0x190
[   51.429129][ T7266]  napi_gro_receive+0x28f/0x330
[   51.433970][ T7266]  receive_buf+0x284/0x30b0
[   51.438466][ T7266]  virtnet_poll+0x436/0x7d0
[   51.442964][ T7266]  net_rx_action+0x3ae/0xa50
[   51.447542][ T7266] 
[   51.449873][ T7266] read to 0xffff88812182c9f8 of 8 bytes by task 7266 on cpu 0:
[   51.457714][ T7266]  tcp_recvmsg+0x470/0x1a30
[   51.462278][ T7266]  inet_recvmsg+0xbb/0x250
[   51.466754][ T7266]  sock_recvmsg+0x92/0xb0
[   51.471196][ T7266]  sock_read_iter+0x15f/0x1e0
[   51.476056][ T7266]  new_sync_read+0x389/0x4f0
[   51.481155][ T7266]  __vfs_read+0xb1/0xc0
[   51.486147][ T7266]  vfs_read+0x143/0x2c0
[   51.490294][ T7266]  ksys_read+0xd5/0x1b0
[   51.494599][ T7266]  __x64_sys_read+0x4c/0x60
[   51.499236][ T7266]  do_syscall_64+0xcf/0x2f0
[   51.503872][ T7266]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   51.509974][ T7266] 
[   51.512562][ T7266] Reported by Kernel Concurrency Sanitizer on:
[   51.518801][ T7266] CPU: 0 PID: 7266 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   51.526190][ T7266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.536745][ T7266] ==================================================================
[   51.545060][ T7266] Kernel panic - not syncing: panic_on_warn set ...
[   51.552475][ T7266] CPU: 0 PID: 7266 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   51.559689][ T7266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.570904][ T7266] Call Trace:
[   51.574193][ T7266]  dump_stack+0xf5/0x159
[   51.578435][ T7266]  panic+0x209/0x639
[   51.582517][ T7266]  ? vprintk_func+0x8d/0x140
[   51.587105][ T7266]  kcsan_report.cold+0x57/0xeb
[   51.592162][ T7266]  __kcsan_setup_watchpoint+0x342/0x500
[   51.597850][ T7266]  __tsan_read8+0x2c/0x30
[   51.602691][ T7266]  tcp_recvmsg+0x470/0x1a30
[   51.607229][ T7266]  inet_recvmsg+0xbb/0x250
[   51.611665][ T7266]  ? __tsan_read8+0x2c/0x30
[   51.616161][ T7266]  ? inet_sendpage+0x100/0x100
[   51.620917][ T7266]  sock_recvmsg+0x92/0xb0
[   51.625238][ T7266]  sock_read_iter+0x15f/0x1e0
[   51.631997][ T7266]  new_sync_read+0x389/0x4f0
[   51.636587][ T7266]  __vfs_read+0xb1/0xc0
[   51.640765][ T7266]  vfs_read+0x143/0x2c0
[   51.644912][ T7266]  ksys_read+0xd5/0x1b0
[   51.649111][ T7266]  __x64_sys_read+0x4c/0x60
[   51.653622][ T7266]  do_syscall_64+0xcf/0x2f0
[   51.658259][ T7266]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   51.664166][ T7266] RIP: 0033:0x47c530
[   51.668196][ T7266] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[   51.688298][ T7266] RSP: 002b:000000c4203dd7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   51.696701][ T7266] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   51.706277][ T7266] RDX: 0000000000001000 RSI: 000000c4200a0000 RDI: 0000000000000003
[   51.714433][ T7266] RBP: 000000c4203dd830 R08: 0000000000000000 R09: 0000000000000000
[   51.722722][ T7266] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   51.731223][ T7266] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   51.741393][ T7266] Kernel Offset: disabled
[   51.745742][ T7266] Rebooting in 86400 seconds..