Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts.
2019/10/04 12:31:39 fuzzer started
2019/10/04 12:31:41 dialing manager at 10.128.0.105:38119
2019/10/04 12:31:41 syscalls: 2523
2019/10/04 12:31:41 code coverage: enabled
2019/10/04 12:31:41 comparison tracing: enabled
2019/10/04 12:31:41 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:31:41 setuid sandbox: enabled
2019/10/04 12:31:41 namespace sandbox: enabled
2019/10/04 12:31:41 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:31:41 fault injection: enabled
2019/10/04 12:31:41 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:31:41 net packet injection: enabled
2019/10/04 12:31:41 net device setup: enabled
2019/10/04 12:31:41 concurrency sanitizer: enabled
gin: [   44.871126][ T7285] ==================================================================
[   44.879363][ T7285] BUG: KCSAN: data-race in tcp_add_backlog+0x4a0/0xcc0 and tcp_grow_window.isra.0+0x6b/0x480
[   44.889543][ T7285] 
[   44.891852][ T7285] write to 0xffff8881227532ec of 4 bytes by interrupt on cpu 1:
[   44.899495][ T7285]  tcp_add_backlog+0x4a0/0xcc0
[   44.904235][ T7285]  tcp_v4_rcv+0x1aba/0x1bf0
[   44.908714][ T7285]  ip_protocol_deliver_rcu+0x51/0x470
[   44.914063][ T7285]  ip_local_deliver_finish+0x110/0x140
[   44.919533][ T7285]  ip_local_deliver+0x133/0x210
[   44.924355][ T7285]  ip_rcv_finish+0x121/0x160
[   44.928918][ T7285]  ip_rcv+0x18f/0x1a0
[   44.932878][ T7285]  __netif_receive_skb_one_core+0xa7/0xe0
[   44.938572][ T7285]  __netif_receive_skb+0x37/0xf0
[   44.943479][ T7285]  netif_receive_skb_internal+0x59/0x190
[   44.949082][ T7285]  napi_gro_receive+0x28f/0x330
[   44.953909][ T7285]  receive_buf+0x284/0x30b0
[   44.958387][ T7285]  virtnet_poll+0x436/0x7d0
[   44.962859][ T7285]  net_rx_action+0x3ae/0xa50
[   44.967451][ T7285] 
[   44.969754][ T7285] read to 0xffff8881227532ec of 4 bytes by task 7285 on cpu 0:
[   44.977280][ T7285]  tcp_grow_window.isra.0+0x6b/0x480
[   44.982540][ T7285]  tcp_event_data_recv+0x68f/0x990
[   44.987712][ T7285]  tcp_rcv_established+0xbfe/0xf50
[   44.992795][ T7285]  tcp_v4_do_rcv+0x381/0x4e0
[   44.997363][ T7285]  __release_sock+0x135/0x1e0
[   45.002013][ T7285]  release_sock+0x61/0x160
[   45.006400][ T7285]  tcp_recvmsg+0x63b/0x1a30
[   45.010879][ T7285]  inet_recvmsg+0xbb/0x250
[   45.015267][ T7285]  sock_recvmsg+0x92/0xb0
[   45.019577][ T7285]  sock_read_iter+0x15f/0x1e0
[   45.024228][ T7285]  new_sync_read+0x389/0x4f0
[   45.028790][ T7285]  __vfs_read+0xb1/0xc0
[   45.032922][ T7285]  vfs_read+0x143/0x2c0
[   45.037045][ T7285] 
[   45.039346][ T7285] Reported by Kernel Concurrency Sanitizer on:
[   45.045488][ T7285] CPU: 0 PID: 7285 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   45.052577][ T7285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.062602][ T7285] ==================================================================
[   45.070636][ T7285] Kernel panic - not syncing: panic_on_warn set ...
[   45.077199][ T7285] CPU: 0 PID: 7285 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   45.084278][ T7285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.094312][ T7285] Call Trace:
[   45.097591][ T7285]  dump_stack+0xf5/0x159
[   45.101808][ T7285]  panic+0x209/0x639
[   45.105681][ T7285]  ? vprintk_func+0x8d/0x140
[   45.110248][ T7285]  kcsan_report.cold+0x57/0xeb
[   45.114990][ T7285]  __kcsan_setup_watchpoint+0x342/0x500
[   45.120524][ T7285]  __tsan_read4+0x2c/0x30
[   45.124830][ T7285]  tcp_grow_window.isra.0+0x6b/0x480
[   45.130107][ T7285]  tcp_event_data_recv+0x68f/0x990
[   45.135196][ T7285]  tcp_rcv_established+0xbfe/0xf50
[   45.140288][ T7285]  ? ipv4_dst_check+0xc6/0xf0
[   45.144941][ T7285]  tcp_v4_do_rcv+0x381/0x4e0
[   45.149511][ T7285]  __release_sock+0x135/0x1e0
[   45.154167][ T7285]  release_sock+0x61/0x160
[   45.158560][ T7285]  tcp_recvmsg+0x63b/0x1a30
[   45.163227][ T7285]  inet_recvmsg+0xbb/0x250
[   45.167620][ T7285]  ? __tsan_read8+0x2c/0x30
[   45.172112][ T7285]  ? inet_sendpage+0x100/0x100
[   45.176854][ T7285]  sock_recvmsg+0x92/0xb0
[   45.181160][ T7285]  sock_read_iter+0x15f/0x1e0
[   45.185815][ T7285]  new_sync_read+0x389/0x4f0
[   45.190395][ T7285]  __vfs_read+0xb1/0xc0
[   45.194527][ T7285]  vfs_read+0x143/0x2c0
[   45.198660][ T7285]  ksys_read+0xd5/0x1b0
[   45.202792][ T7285]  __x64_sys_read+0x4c/0x60
[   45.207293][ T7285]  do_syscall_64+0xcf/0x2f0
[   45.211775][ T7285]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.217651][ T7285] RIP: 0033:0x47c530
[   45.221526][ T7285] 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
[   45.241114][ T7285] RSP: 002b:000000c4204e7810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   45.249498][ T7285] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   45.257460][ T7285] RDX: 0000000000001000 RSI: 000000c420182000 RDI: 0000000000000003
[   45.265406][ T7285] RBP: 000000c4204e7868 R08: 0000000000000000 R09: 0000000000000000
[   45.273372][ T7285] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000200
[   45.281420][ T7285] R13: ffffffffffffffff R14: 0000000000000008 R15: ffffffffffffffff
[   45.290651][ T7285] Kernel Offset: disabled
[   45.294968][ T7285] Rebooting in 86400 seconds..