Warning: Permanently added '10.128.10.36' (ECDSA) to the list of known hosts.
2019/10/22 16:15:36 fuzzer started
2019/10/22 16:15:37 dialing manager at 10.128.0.105:33369
2019/10/22 16:15:37 syscalls: 2524
2019/10/22 16:15:37 code coverage: enabled
2019/10/22 16:15:37 comparison tracing: enabled
2019/10/22 16:15:37 extra coverage: extra coverage is not supported by the kernel
2019/10/22 16:15:37 setuid sandbox: enabled
2019/10/22 16:15:37 namespace sandbox: enabled
2019/10/22 16:15:37 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 16:15:37 fault injection: enabled
2019/10/22 16:15:37 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 16:15:37 net packet injection: enabled
2019/10/22 16:15:37 net device setup: enabled
2019/10/22 16:15:37 concurrency sanitizer: enabled
syzkaller login: [   47.679360][ T7196] ==================================================================
[   47.687484][ T7196] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   47.694399][ T7196] 
[   47.696708][ T7196] write to 0xffff8881269dce78 of 4 bytes by interrupt on cpu 0:
[   47.704336][ T7196]  tcp_queue_rcv+0xe9/0x380
[   47.708826][ T7196]  tcp_data_queue+0x7bb/0x20b0
[   47.713568][ T7196]  tcp_rcv_established+0x517/0xf50
[   47.718683][ T7196]  tcp_v4_do_rcv+0x381/0x4e0
[   47.723253][ T7196]  tcp_v4_rcv+0x19dc/0x1bb0
[   47.727741][ T7196]  ip_protocol_deliver_rcu+0x4d/0x420
[   47.733105][ T7196]  ip_local_deliver_finish+0x110/0x140
[   47.738541][ T7196]  ip_local_deliver+0x133/0x210
[   47.743366][ T7196]  ip_rcv_finish+0x121/0x160
[   47.747928][ T7196]  ip_rcv+0x18f/0x1a0
[   47.751888][ T7196]  __netif_receive_skb_one_core+0xa7/0xe0
[   47.757584][ T7196]  __netif_receive_skb+0x37/0xf0
[   47.762501][ T7196]  netif_receive_skb_internal+0x59/0x190
[   47.768110][ T7196]  napi_gro_receive+0x28f/0x330
[   47.772949][ T7196] 
[   47.775275][ T7196] read to 0xffff8881269dce78 of 4 bytes by task 7196 on cpu 1:
[   47.783057][ T7196]  tcp_poll+0x204/0x6b0
[   47.787188][ T7196]  sock_poll+0xed/0x250
[   47.792101][ T7196]  ep_item_poll.isra.0+0x90/0x190
[   47.797112][ T7196]  ep_send_events_proc+0x113/0x590
[   47.802292][ T7196]  ep_scan_ready_list.constprop.0+0x189/0x500
[   47.808350][ T7196]  ep_poll+0xe3/0x900
[   47.812329][ T7196]  do_epoll_wait+0x162/0x180
[   47.817000][ T7196]  __x64_sys_epoll_pwait+0xcd/0x180
[   47.822207][ T7196]  do_syscall_64+0xcc/0x370
[   47.826697][ T7196]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   47.832567][ T7196] 
[   47.834891][ T7196] Reported by Kernel Concurrency Sanitizer on:
[   47.841116][ T7196] CPU: 1 PID: 7196 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   47.848552][ T7196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.858896][ T7196] ==================================================================
[   47.866936][ T7196] Kernel panic - not syncing: panic_on_warn set ...
[   47.873520][ T7196] CPU: 1 PID: 7196 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   47.880946][ T7196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.891003][ T7196] Call Trace:
[   47.894382][ T7196]  dump_stack+0xf5/0x159
[   47.898609][ T7196]  panic+0x210/0x640
[   47.902492][ T7196]  ? do_syscall_64+0xcc/0x370
[   47.907160][ T7196]  ? vprintk_func+0x8d/0x140
[   47.911741][ T7196]  kcsan_report.cold+0xc/0x10
[   47.916410][ T7196]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   47.921951][ T7196]  __tsan_read4+0x2c/0x30
[   47.926301][ T7196]  tcp_poll+0x204/0x6b0
[   47.931008][ T7196]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   47.936456][ T7196]  sock_poll+0xed/0x250
[   47.940615][ T7196]  ? sock_read_iter+0x1e0/0x1e0
[   47.945481][ T7196]  ep_item_poll.isra.0+0x90/0x190
[   47.950495][ T7196]  ep_send_events_proc+0x113/0x590
[   47.956120][ T7196]  ? __schedule+0x319/0x640
[   47.960603][ T7196]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   47.966229][ T7196]  ep_scan_ready_list.constprop.0+0x189/0x500
[   47.972286][ T7196]  ? ep_loop_check_proc+0x2f0/0x2f0
[   47.977474][ T7196]  ep_poll+0xe3/0x900
[   47.981676][ T7196]  ? wake_up_q+0x70/0x70
[   47.985912][ T7196]  do_epoll_wait+0x162/0x180
[   47.990499][ T7196]  __x64_sys_epoll_pwait+0xcd/0x180
[   47.995688][ T7196]  do_syscall_64+0xcc/0x370
[   48.000177][ T7196]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.006048][ T7196] RIP: 0033:0x45b300
[   48.009945][ T7196] 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
[   48.029533][ T7196] RSP: 002b:000000c42014f860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   48.038020][ T7196] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   48.046518][ T7196] RDX: 0000000000000080 RSI: 000000c42014f8a0 RDI: 0000000000000004
[   48.054466][ T7196] RBP: 000000c42014fea0 R08: 0000000000000000 R09: 0000000000000000
[   48.062422][ T7196] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000007
[   48.070378][ T7196] R13: 000000c4200828d0 R14: 0000000000000004 R15: ffffffffffffffff
[   48.079850][ T7196] Kernel Offset: disabled
[   48.084197][ T7196] Rebooting in 86400 seconds..