Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts.
2019/10/04 12:15:26 fuzzer started
2019/10/04 12:15:27 dialing manager at 10.128.0.105:38119
2019/10/04 12:15:28 syscalls: 2523
2019/10/04 12:15:28 code coverage: enabled
2019/10/04 12:15:28 comparison tracing: enabled
2019/10/04 12:15:28 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:15:28 setuid sandbox: enabled
2019/10/04 12:15:28 namespace sandbox: enabled
2019/10/04 12:15:28 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:15:28 fault injection: enabled
2019/10/04 12:15:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:15:28 net packet injection: enabled
2019/10/04 12:15:28 net device setup: enabled
2019/10/04 12:15:28 concurrency sanitizer: enabled
syzkaller login: [ 51.334066][ C0] ==================================================================
[ 51.343409][ C0] BUG: KCSAN: data-race in tcp_poll+0x204/0x6b0 and tcp_queue_rcv+0xe9/0x380
[ 51.352680][ C0]
[ 51.355142][ C0] read to 0xffff8881228a85b0 of 4 bytes by task 7234 on cpu 1:
[ 51.362826][ C0] tcp_poll+0x204/0x6b0
[ 51.367183][ C0] sock_poll+0xed/0x250
[ 51.371428][ C0] ep_item_poll.isra.0+0x90/0x190
[ 51.376946][ C0] ep_send_events_proc+0x113/0x5c0
[ 51.382771][ C0] ep_scan_ready_list.constprop.0+0x189/0x500
[ 51.389100][ C0] ep_poll+0xe3/0x900
[ 51.393686][ C0] do_epoll_wait+0x162/0x180
[ 51.399316][ C0] __x64_sys_epoll_pwait+0xcd/0x170
[ 51.404594][ C0] do_syscall_64+0xcf/0x2f0
[ 51.409188][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 51.415066][ C0]
[ 51.417487][ C0] write to 0xffff8881228a85b0 of 4 bytes by interrupt on cpu 0:
[ 51.425754][ C0] tcp_queue_rcv+0xe9/0x380
[ 51.430632][ C0] tcp_rcv_established+0xbf1/0xf50
[ 51.436671][ C0] tcp_v4_do_rcv+0x381/0x4e0
[ 51.441838][ C0] tcp_v4_rcv+0x1a03/0x1bf0
[ 51.446564][ C0] ip_protocol_deliver_rcu+0x51/0x470
[ 51.452192][ C0] ip_local_deliver_finish+0x110/0x140
[ 51.457915][ C0] ip_local_deliver+0x133/0x210
[ 51.462939][ C0] ip_rcv_finish+0x121/0x160
[ 51.467701][ C0] ip_rcv+0x18f/0x1a0
[ 51.471979][ C0] __netif_receive_skb_one_core+0xa7/0xe0
[ 51.479235][ C0] __netif_receive_skb+0x37/0xf0
[ 51.484267][ C0] netif_receive_skb_internal+0x59/0x190
[ 51.493224][ C0] napi_gro_receive+0x28f/0x330
[ 51.499052][ C0]
[ 51.501591][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 51.508053][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0+ #0
[ 51.515303][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 51.526497][ C0] ==================================================================
[ 51.535161][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 51.542360][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0+ #0
[ 51.549390][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 51.560020][ C0] Call Trace:
[ 51.563386][ C0]
[ 51.566627][ C0] dump_stack+0xf5/0x159
[ 51.571358][ C0] panic+0x209/0x639
[ 51.575639][ C0] ? vprintk_func+0x8d/0x140
[ 51.580234][ C0] kcsan_report.cold+0x57/0xeb
[ 51.585336][ C0] __kcsan_setup_watchpoint+0x342/0x500
[ 51.591191][ C0] __tsan_write4+0x32/0x40
[ 51.595799][ C0] tcp_queue_rcv+0xe9/0x380
[ 51.600576][ C0] tcp_rcv_established+0xbf1/0xf50
[ 51.606040][ C0] ? ipv4_dst_check+0xc6/0xf0
[ 51.611123][ C0] tcp_v4_do_rcv+0x381/0x4e0
[ 51.615935][ C0] tcp_v4_rcv+0x1a03/0x1bf0
[ 51.620853][ C0] ? __tsan_read8+0x2c/0x30
[ 51.625446][ C0] ip_protocol_deliver_rcu+0x51/0x470
[ 51.631029][ C0] ip_local_deliver_finish+0x110/0x140
[ 51.636579][ C0] ip_local_deliver+0x133/0x210
[ 51.641470][ C0] ? ip_protocol_deliver_rcu+0x470/0x470
[ 51.647110][ C0] ip_rcv_finish+0x121/0x160
[ 51.651735][ C0] ip_rcv+0x18f/0x1a0
[ 51.655801][ C0] ? ip_sublist_rcv+0x5e0/0x5e0
[ 51.660676][ C0] ? ip_local_deliver+0x210/0x210
[ 51.665706][ C0] __netif_receive_skb_one_core+0xa7/0xe0
[ 51.671546][ C0] __netif_receive_skb+0x37/0xf0
[ 51.676511][ C0] netif_receive_skb_internal+0x59/0x190
[ 51.682137][ C0] napi_gro_receive+0x28f/0x330
[ 51.686991][ C0] receive_buf+0x284/0x30b0
[ 51.691486][ C0] ? __tsan_write8+0x32/0x40
[ 51.696076][ C0] ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[ 51.701528][ C0] ? virtqueue_get_buf+0x31/0x40
[ 51.706575][ C0] virtnet_poll+0x436/0x7d0
[ 51.711082][ C0] net_rx_action+0x3ae/0xa50
[ 51.715732][ C0] __do_softirq+0x115/0x33f
[ 51.720230][ C0] irq_exit+0xbb/0xe0
[ 51.724206][ C0] do_IRQ+0xdf/0x150
[ 51.728096][ C0] common_interrupt+0xf/0xf
[ 51.732630][ C0]
[ 51.735564][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 51.741145][ C0] Code: 90 90 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 8c d2 4e 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 7c d2 4e 00 fb f4 90 55 48 89 e5 41 55 41 54 53 e8 82 78 a7 fc e8 5d 4e b9 fd 0f
[ 51.761320][ C0] RSP: 0018:ffffffff85a03de0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffda
[ 51.769769][ C0] RAX: 126e978d4fe024d5 RBX: 0000000000000000 RCX: 000000000000009d
[ 51.777736][ C0] RDX: 0000000000caa300 RSI: 020c49ba5e353f7d RDI: ffffffff85a55a28
[ 51.785706][ C0] RBP: ffffffff85a03e18 R08: 0000000000000000 R09: 0000ffff85a55a2f
[ 51.793761][ C0] R10: 00000000aaaaaaab R11: ffffffff86042cc0 R12: ffffffff85a2b780
[ 51.802955][ C0] R13: ffffffff85a2b780 R14: 0000000000000000 R15: 0000000000000000
[ 51.811122][ C0] ? default_idle+0x50/0x230
[ 51.815711][ C0] arch_cpu_idle+0x1f/0x30
[ 51.820260][ C0] default_idle_call+0x1e/0x40
[ 51.825022][ C0] do_idle+0x1ea/0x2c0
[ 51.829090][ C0] cpu_startup_entry+0x1b/0x20
[ 51.833865][ C0] rest_init+0xec/0xf6
[ 51.838012][ C0] ? trace_event_define_fields_vector_free_moved+0xce/0xce
[ 51.845207][ C0] arch_call_rest_init+0x17/0x37
[ 51.850145][ C0] start_kernel+0x83e/0x864
[ 51.854740][ C0] x86_64_start_reservations+0x29/0x2b
[ 51.860194][ C0] x86_64_start_kernel+0x72/0x76
[ 51.865125][ C0] secondary_startup_64+0xa4/0xb0
[ 51.872495][ C0] Kernel Offset: disabled
[ 51.876832][ C0] Rebooting in 86400 seconds..