Warning: Permanently added '10.128.10.30' (ECDSA) to the list of known hosts.
2019/10/04 12:28:53 fuzzer started
2019/10/04 12:28:55 dialing manager at 10.128.0.105:38119
2019/10/04 12:28:55 syscalls: 2523
2019/10/04 12:28:55 code coverage: enabled
2019/10/04 12:28:55 comparison tracing: enabled
2019/10/04 12:28:55 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:28:55 setuid sandbox: enabled
2019/10/04 12:28:55 namespace sandbox: enabled
2019/10/04 12:28:55 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:28:55 fault injection: enabled
2019/10/04 12:28:55 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:28:55 net packet injection: enabled
2019/10/04 12:28:55 net device setup: enabled
2019/10/04 12:28:55 concurrency sanitizer: enabled
syzkaller login: [   49.298497][ T7300] ==================================================================
[   49.306836][ T7300] BUG: KCSAN: data-race in tcp_poll+0x204/0x6b0 and tcp_queue_rcv+0x180/0x380
[   49.315689][ T7300] 
[   49.318025][ T7300] write to 0xffff8881264c45b0 of 4 bytes by interrupt on cpu 0:
[   49.325660][ T7300]  tcp_queue_rcv+0x180/0x380
[   49.330252][ T7300]  tcp_rcv_established+0xbf1/0xf50
[   49.335359][ T7300]  tcp_v4_do_rcv+0x381/0x4e0
[   49.339944][ T7300]  tcp_v4_rcv+0x1a03/0x1bf0
[   49.344434][ T7300]  ip_protocol_deliver_rcu+0x51/0x470
[   49.349932][ T7300]  ip_local_deliver_finish+0x110/0x140
[   49.355371][ T7300]  ip_local_deliver+0x133/0x210
[   49.361589][ T7300]  ip_rcv_finish+0x121/0x160
[   49.366157][ T7300]  ip_rcv+0x18f/0x1a0
[   49.370157][ T7300]  __netif_receive_skb_one_core+0xa7/0xe0
[   49.375852][ T7300]  __netif_receive_skb+0x37/0xf0
[   49.380762][ T7300]  netif_receive_skb_internal+0x59/0x190
[   49.386365][ T7300]  napi_gro_receive+0x28f/0x330
[   49.391195][ T7300]  receive_buf+0x284/0x30b0
[   49.395697][ T7300] 
[   49.398006][ T7300] read to 0xffff8881264c45b0 of 4 bytes by task 7300 on cpu 1:
[   49.405523][ T7300]  tcp_poll+0x204/0x6b0
[   49.409666][ T7300]  sock_poll+0xed/0x250
[   49.413815][ T7300]  ep_item_poll.isra.0+0x90/0x190
[   49.418828][ T7300]  ep_send_events_proc+0x113/0x5c0
[   49.423949][ T7300]  ep_scan_ready_list.constprop.0+0x189/0x500
[   49.429998][ T7300]  ep_poll+0xe3/0x900
[   49.433967][ T7300]  do_epoll_wait+0x162/0x180
[   49.438560][ T7300]  __x64_sys_epoll_pwait+0xcd/0x170
[   49.443735][ T7300]  do_syscall_64+0xcf/0x2f0
[   49.448219][ T7300]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.454087][ T7300] 
[   49.456476][ T7300] Reported by Kernel Concurrency Sanitizer on:
[   49.462604][ T7300] CPU: 1 PID: 7300 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.469724][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.479757][ T7300] ==================================================================
[   49.487878][ T7300] Kernel panic - not syncing: panic_on_warn set ...
[   49.494441][ T7300] CPU: 1 PID: 7300 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.501520][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.511559][ T7300] Call Trace:
[   49.514923][ T7300]  dump_stack+0xf5/0x159
[   49.519151][ T7300]  panic+0x209/0x639
[   49.523032][ T7300]  ? vprintk_func+0x8d/0x140
[   49.527612][ T7300]  kcsan_report.cold+0x57/0xeb
[   49.532357][ T7300]  __kcsan_setup_watchpoint+0x342/0x500
[   49.537885][ T7300]  __tsan_read4+0x2c/0x30
[   49.542188][ T7300]  tcp_poll+0x204/0x6b0
[   49.546321][ T7300]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   49.551754][ T7300]  sock_poll+0xed/0x250
[   49.555887][ T7300]  ? sock_read_iter+0x1e0/0x1e0
[   49.560720][ T7300]  ep_item_poll.isra.0+0x90/0x190
[   49.565724][ T7300]  ep_send_events_proc+0x113/0x5c0
[   49.570817][ T7300]  ep_scan_ready_list.constprop.0+0x189/0x500
[   49.576872][ T7300]  ? ep_loop_check_proc+0x2f0/0x2f0
[   49.582050][ T7300]  ep_poll+0xe3/0x900
[   49.586016][ T7300]  ? __fget+0xb8/0x1d0
[   49.590065][ T7300]  ? __fget_light+0xaf/0x190
[   49.594632][ T7300]  do_epoll_wait+0x162/0x180
[   49.599211][ T7300]  __x64_sys_epoll_pwait+0xcd/0x170
[   49.604398][ T7300]  do_syscall_64+0xcf/0x2f0
[   49.608891][ T7300]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.614768][ T7300] RIP: 0033:0x45b300
[   49.618650][ T7300] Code: 0f 05 89 44 24 20 c3 cc cc cc 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 49 c7 c0 00 00 00 00 b8 19 01 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 c7
[   49.638255][ T7300] RSP: 002b:000000c42016b860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   49.646649][ T7300] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b300
[   49.654615][ T7300] RDX: 0000000000000080 RSI: 000000c42016b8a0 RDI: 0000000000000004
[   49.662569][ T7300] RBP: 000000c42016bea0 R08: 0000000000000000 R09: 0000000000000000
[   49.670520][ T7300] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[   49.678690][ T7300] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   49.688391][ T7300] Kernel Offset: disabled
[   49.692895][ T7300] Rebooting in 86400 seconds..