Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts.
2019/10/22 05:17:34 fuzzer started
2019/10/22 05:17:36 dialing manager at 10.128.0.105:37053
2019/10/22 05:17:36 syscalls: 2524
2019/10/22 05:17:36 code coverage: enabled
2019/10/22 05:17:36 comparison tracing: enabled
2019/10/22 05:17:36 extra coverage: extra coverage is not supported by the kernel
2019/10/22 05:17:36 setuid sandbox: enabled
2019/10/22 05:17:36 namespace sandbox: enabled
2019/10/22 05:17:36 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 05:17:36 fault injection: enabled
2019/10/22 05:17:36 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 05:17:36 net packet injection: enabled
2019/10/22 05:17:36 net device setup: enabled
2019/10/22 05:17:36 concurrency sanitizer: enabled
syzkaller login: [   56.835271][ T7217] ==================================================================
[   56.843425][ T7217] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   56.850009][ T7217] 
[   56.852350][ T7217] write to 0xffff88811f5b7778 of 4 bytes by interrupt on cpu 0:
[   56.859994][ T7217]  tcp_queue_rcv+0xe9/0x380
[   56.864539][ T7217]  tcp_rcv_established+0xbf1/0xf50
[   56.869642][ T7217]  tcp_v4_do_rcv+0x381/0x4e0
[   56.874221][ T7217]  tcp_v4_rcv+0x19dc/0x1bb0
[   56.878957][ T7217]  ip_protocol_deliver_rcu+0x4d/0x420
[   56.884316][ T7217]  ip_local_deliver_finish+0x110/0x140
[   56.889768][ T7217]  ip_local_deliver+0x133/0x210
[   56.894607][ T7217]  ip_rcv_finish+0x121/0x160
[   56.899194][ T7217]  ip_rcv+0x18f/0x1a0
[   56.903864][ T7217]  __netif_receive_skb_one_core+0xa7/0xe0
[   56.909572][ T7217]  __netif_receive_skb+0x37/0xf0
[   56.914962][ T7217]  netif_receive_skb_internal+0x59/0x190
[   56.920583][ T7217]  napi_gro_receive+0x28f/0x330
[   56.925531][ T7217]  receive_buf+0x284/0x30b0
[   56.930030][ T7217] 
[   56.932373][ T7217] read to 0xffff88811f5b7778 of 4 bytes by task 7217 on cpu 1:
[   56.939902][ T7217]  tcp_poll+0x204/0x6b0
[   56.944046][ T7217]  sock_poll+0xed/0x250
[   56.948195][ T7217]  ep_item_poll.isra.0+0x90/0x190
[   56.953302][ T7217]  ep_send_events_proc+0x113/0x590
[   56.958406][ T7217]  ep_scan_ready_list.constprop.0+0x189/0x500
[   56.964456][ T7217]  ep_poll+0xe3/0x900
[   56.968429][ T7217]  do_epoll_wait+0x162/0x180
[   56.972997][ T7217]  __x64_sys_epoll_pwait+0xcd/0x180
[   56.978298][ T7217]  do_syscall_64+0xcc/0x370
[   56.983306][ T7217]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   56.989287][ T7217] 
[   56.991619][ T7217] Reported by Kernel Concurrency Sanitizer on:
[   56.998761][ T7217] CPU: 1 PID: 7217 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   57.006377][ T7217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.016406][ T7217] ==================================================================
[   57.024441][ T7217] Kernel panic - not syncing: panic_on_warn set ...
[   57.031022][ T7217] CPU: 1 PID: 7217 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   57.038449][ T7217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.048480][ T7217] Call Trace:
[   57.051771][ T7217]  dump_stack+0xf5/0x159
[   57.055991][ T7217]  panic+0x210/0x640
[   57.059881][ T7217]  ? do_syscall_64+0xcc/0x370
[   57.064534][ T7217]  ? vprintk_func+0x8d/0x140
[   57.069116][ T7217]  kcsan_report.cold+0xc/0x10
[   57.073772][ T7217]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   57.079300][ T7217]  __tsan_read4+0x2c/0x30
[   57.083611][ T7217]  tcp_poll+0x204/0x6b0
[   57.087749][ T7217]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   57.093187][ T7217]  sock_poll+0xed/0x250
[   57.097321][ T7217]  ? sock_read_iter+0x1e0/0x1e0
[   57.102150][ T7217]  ep_item_poll.isra.0+0x90/0x190
[   57.107153][ T7217]  ep_send_events_proc+0x113/0x590
[   57.112241][ T7217]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   57.117880][ T7217]  ep_scan_ready_list.constprop.0+0x189/0x500
[   57.124642][ T7217]  ? ep_loop_check_proc+0x2f0/0x2f0
[   57.129927][ T7217]  ep_poll+0xe3/0x900
[   57.133895][ T7217]  ? __fget+0xb8/0x1d0
[   57.137953][ T7217]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   57.143582][ T7217]  ? __fget_light+0xaf/0x190
[   57.148171][ T7217]  do_epoll_wait+0x162/0x180
[   57.152750][ T7217]  __x64_sys_epoll_pwait+0xcd/0x180
[   57.158032][ T7217]  do_syscall_64+0xcc/0x370
[   57.164624][ T7217]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   57.170668][ T7217] RIP: 0033:0x45b300
[   57.174646][ T7217] 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
[   57.194327][ T7217] RSP: 002b:000000c4201418c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   57.202717][ T7217] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b300
[   57.210676][ T7217] RDX: 0000000000000080 RSI: 000000c420141908 RDI: 0000000000000004
[   57.218637][ T7217] RBP: 000000c420141f08 R08: 0000000000000000 R09: 00000000010a4f80
[   57.226587][ T7217] R10: 0000000000000000 R11: 0000000000000246 R12: 000000c420072f98
[   57.234538][ T7217] R13: 0000000000000007 R14: 0000000000c14060 R15: ffffffffffffffff
[   57.243828][ T7217] Kernel Offset: disabled
[   57.248271][ T7217] Rebooting in 86400 seconds..