Warning: Permanently added '10.128.0.182' (ECDSA) to the list of known hosts.
2019/10/04 15:42:29 fuzzer started
2019/10/04 15:42:31 dialing manager at 10.128.0.105:44881
2019/10/04 15:42:31 syscalls: 2523
2019/10/04 15:42:31 code coverage: enabled
2019/10/04 15:42:31 comparison tracing: enabled
2019/10/04 15:42:31 extra coverage: extra coverage is not supported by the kernel
2019/10/04 15:42:31 setuid sandbox: enabled
2019/10/04 15:42:31 namespace sandbox: enabled
2019/10/04 15:42:31 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 15:42:31 fault injection: enabled
2019/10/04 15:42:31 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 15:42:31 net packet injection: enabled
2019/10/04 15:42:31 net device setup: enabled
2019/10/04 15:42:31 concurrency sanitizer: enabled
syzkaller login: [   54.573934][ T7254] ==================================================================
[   54.582118][ T7254] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   54.588821][ T7254] 
[   54.591139][ T7254] write to 0xffff888120425770 of 4 bytes by interrupt on cpu 0:
[   54.598769][ T7254]  tcp_queue_rcv+0x180/0x380
[   54.603350][ T7254]  tcp_rcv_established+0xbf1/0xf50
[   54.608598][ T7254]  tcp_v4_do_rcv+0x381/0x4e0
[   54.613184][ T7254]  tcp_v4_rcv+0x1a03/0x1bf0
[   54.617672][ T7254]  ip_protocol_deliver_rcu+0x51/0x470
[   54.623028][ T7254]  ip_local_deliver_finish+0x110/0x140
[   54.628465][ T7254]  ip_local_deliver+0x133/0x210
[   54.633448][ T7254]  ip_rcv_finish+0x121/0x160
[   54.638024][ T7254]  ip_rcv+0x18f/0x1a0
[   54.642013][ T7254]  __netif_receive_skb_one_core+0xa7/0xe0
[   54.647727][ T7254]  __netif_receive_skb+0x37/0xf0
[   54.652652][ T7254]  netif_receive_skb_internal+0x59/0x190
[   54.658259][ T7254]  napi_gro_receive+0x28f/0x330
[   54.663086][ T7254]  receive_buf+0x284/0x30b0
[   54.667580][ T7254] 
[   54.669888][ T7254] read to 0xffff888120425770 of 4 bytes by task 7254 on cpu 1:
[   54.677432][ T7254]  tcp_poll+0x204/0x6b0
[   54.681664][ T7254]  sock_poll+0xed/0x250
[   54.685810][ T7254]  ep_item_poll.isra.0+0x90/0x190
[   54.690814][ T7254]  ep_send_events_proc+0x113/0x5c0
[   54.695916][ T7254]  ep_scan_ready_list.constprop.0+0x189/0x500
[   54.701959][ T7254]  ep_poll+0xe3/0x900
[   54.705932][ T7254]  do_epoll_wait+0x162/0x180
[   54.710515][ T7254]  __x64_sys_epoll_pwait+0xcd/0x170
[   54.715690][ T7254]  do_syscall_64+0xcf/0x2f0
[   54.720954][ T7254]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.726815][ T7254] 
[   54.729132][ T7254] Reported by Kernel Concurrency Sanitizer on:
[   54.735265][ T7254] CPU: 1 PID: 7254 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   54.742357][ T7254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.752487][ T7254] ==================================================================
[   54.760562][ T7254] Kernel panic - not syncing: panic_on_warn set ...
[   54.767160][ T7254] CPU: 1 PID: 7254 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   54.774265][ T7254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.784328][ T7254] Call Trace:
[   54.787629][ T7254]  dump_stack+0xf5/0x159
[   54.791868][ T7254]  panic+0x209/0x639
[   54.795769][ T7254]  ? vprintk_func+0x8d/0x140
[   54.800370][ T7254]  kcsan_report.cold+0x57/0xeb
[   54.805133][ T7254]  __kcsan_setup_watchpoint+0x342/0x500
[   54.810756][ T7254]  __tsan_read4+0x2c/0x30
[   54.815083][ T7254]  tcp_poll+0x204/0x6b0
[   54.819227][ T7254]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   54.824674][ T7254]  sock_poll+0xed/0x250
[   54.828821][ T7254]  ? sock_read_iter+0x1e0/0x1e0
[   54.833738][ T7254]  ep_item_poll.isra.0+0x90/0x190
[   54.838746][ T7254]  ep_send_events_proc+0x113/0x5c0
[   54.843908][ T7254]  ep_scan_ready_list.constprop.0+0x189/0x500
[   54.849967][ T7254]  ? ep_loop_check_proc+0x2f0/0x2f0
[   54.855156][ T7254]  ep_poll+0xe3/0x900
[   54.859117][ T7254]  ? __fget+0xb8/0x1d0
[   54.863167][ T7254]  ? __fget_light+0xaf/0x190
[   54.867757][ T7254]  do_epoll_wait+0x162/0x180
[   54.872345][ T7254]  __x64_sys_epoll_pwait+0xcd/0x170
[   54.877531][ T7254]  do_syscall_64+0xcf/0x2f0
[   54.882035][ T7254]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.887902][ T7254] RIP: 0033:0x45b300
[   54.891790][ T7254] 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
[   54.911423][ T7254] RSP: 002b:000000c42014f860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   54.919820][ T7254] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b300
[   54.927778][ T7254] RDX: 0000000000000080 RSI: 000000c42014f8a0 RDI: 0000000000000004
[   54.935818][ T7254] RBP: 000000c42014fea0 R08: 0000000000000000 R09: 0000000000000000
[   54.943798][ T7254] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000020
[   54.951775][ T7254] R13: ffffffffffffffff R14: 0000000000000010 R15: ffffffffffffffff
[   54.961338][ T7254] Kernel Offset: disabled
[   54.965798][ T7254] Rebooting in 86400 seconds..