Warning: Permanently added '10.128.15.208' (ECDSA) to the list of known hosts.
2019/10/04 12:21:58 fuzzer started
2019/10/04 12:22:00 dialing manager at 10.128.0.105:38119
2019/10/04 12:22:00 syscalls: 2523
2019/10/04 12:22:00 code coverage: enabled
2019/10/04 12:22:00 comparison tracing: enabled
2019/10/04 12:22:00 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:22:00 setuid sandbox: enabled
2019/10/04 12:22:00 namespace sandbox: enabled
2019/10/04 12:22:00 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:22:00 fault injection: enabled
2019/10/04 12:22:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:22:00 net packet injection: enabled
2019/10/04 12:22:00 net device setup: enabled
2019/10/04 12:22:00 concurrency sanitizer: enabled
syzkaller login: [   53.995526][ T7300] ==================================================================
[   54.003769][ T7300] BUG: KCSAN: data-race in tcp_add_backlog+0x45a/0xcc0 and tcp_recvmsg+0x470/0x1a30
[   54.013167][ T7300] 
[   54.015495][ T7300] write to 0xffff88811d9e0138 of 8 bytes by interrupt on cpu 0:
[   54.023105][ T7300]  tcp_add_backlog+0x45a/0xcc0
[   54.027861][ T7300]  tcp_v4_rcv+0x1aba/0x1bf0
[   54.032345][ T7300]  ip_protocol_deliver_rcu+0x51/0x470
[   54.037699][ T7300]  ip_local_deliver_finish+0x110/0x140
[   54.043133][ T7300]  ip_local_deliver+0x133/0x210
[   54.047962][ T7300]  ip_rcv_finish+0x121/0x160
[   54.052530][ T7300]  ip_rcv+0x18f/0x1a0
[   54.056495][ T7300]  __netif_receive_skb_one_core+0xa7/0xe0
[   54.062204][ T7300]  __netif_receive_skb+0x37/0xf0
[   54.067130][ T7300]  netif_receive_skb_internal+0x59/0x190
[   54.072738][ T7300]  napi_gro_receive+0x28f/0x330
[   54.077577][ T7300]  receive_buf+0x284/0x30b0
[   54.082058][ T7300]  virtnet_poll+0x436/0x7d0
[   54.086537][ T7300]  net_rx_action+0x3ae/0xa50
[   54.091097][ T7300] 
[   54.093408][ T7300] read to 0xffff88811d9e0138 of 8 bytes by task 7300 on cpu 1:
[   54.100927][ T7300]  tcp_recvmsg+0x470/0x1a30
[   54.105423][ T7300]  inet_recvmsg+0xbb/0x250
[   54.109816][ T7300]  sock_recvmsg+0x92/0xb0
[   54.114135][ T7300]  sock_read_iter+0x15f/0x1e0
[   54.118791][ T7300]  new_sync_read+0x389/0x4f0
[   54.123382][ T7300]  __vfs_read+0xb1/0xc0
[   54.127518][ T7300]  vfs_read+0x143/0x2c0
[   54.131653][ T7300]  ksys_read+0xd5/0x1b0
[   54.135787][ T7300]  __x64_sys_read+0x4c/0x60
[   54.140270][ T7300]  do_syscall_64+0xcf/0x2f0
[   54.144755][ T7300]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.150617][ T7300] 
[   54.152919][ T7300] Reported by Kernel Concurrency Sanitizer on:
[   54.159052][ T7300] CPU: 1 PID: 7300 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   54.166134][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.176177][ T7300] ==================================================================
[   54.184215][ T7300] Kernel panic - not syncing: panic_on_warn set ...
[   54.190780][ T7300] CPU: 1 PID: 7300 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   54.197858][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.207886][ T7300] Call Trace:
[   54.211157][ T7300]  dump_stack+0xf5/0x159
[   54.215415][ T7300]  panic+0x209/0x639
[   54.219297][ T7300]  ? vprintk_func+0x8d/0x140
[   54.223866][ T7300]  kcsan_report.cold+0x57/0xeb
[   54.228607][ T7300]  __kcsan_setup_watchpoint+0x342/0x500
[   54.234147][ T7300]  __tsan_read8+0x2c/0x30
[   54.238466][ T7300]  tcp_recvmsg+0x470/0x1a30
[   54.242963][ T7300]  inet_recvmsg+0xbb/0x250
[   54.247363][ T7300]  ? __tsan_read8+0x2c/0x30
[   54.251844][ T7300]  ? inet_sendpage+0x100/0x100
[   54.256585][ T7300]  sock_recvmsg+0x92/0xb0
[   54.260891][ T7300]  sock_read_iter+0x15f/0x1e0
[   54.265552][ T7300]  new_sync_read+0x389/0x4f0
[   54.270130][ T7300]  __vfs_read+0xb1/0xc0
[   54.274281][ T7300]  vfs_read+0x143/0x2c0
[   54.278419][ T7300]  ksys_read+0xd5/0x1b0
[   54.282568][ T7300]  __x64_sys_read+0x4c/0x60
[   54.287053][ T7300]  do_syscall_64+0xcf/0x2f0
[   54.291538][ T7300]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.297406][ T7300] RIP: 0033:0x47c530
[   54.301283][ T7300] 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
[   54.320863][ T7300] RSP: 002b:000000c4204e57d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   54.329262][ T7300] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   54.337213][ T7300] RDX: 0000000000001000 RSI: 000000c420098000 RDI: 0000000000000003
[   54.345162][ T7300] RBP: 000000c4204e5830 R08: 0000000000000000 R09: 0000000000000000
[   54.353108][ T7300] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000010
[   54.361058][ T7300] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   54.370430][ T7300] Kernel Offset: disabled
[   54.374755][ T7300] Rebooting in 86400 seconds..