Warning: Permanently added '10.128.10.62' (ECDSA) to the list of known hosts.
2019/10/22 06:26:36 fuzzer started
2019/10/22 06:26:37 dialing manager at 10.128.0.105:37053
2019/10/22 06:26:37 syscalls: 2524
2019/10/22 06:26:37 code coverage: enabled
2019/10/22 06:26:37 comparison tracing: enabled
2019/10/22 06:26:37 extra coverage: extra coverage is not supported by the kernel
2019/10/22 06:26:37 setuid sandbox: enabled
2019/10/22 06:26:37 namespace sandbox: enabled
2019/10/22 06:26:37 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 06:26:37 fault injection: enabled
2019/10/22 06:26:37 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 06:26:37 net packet injection: enabled
2019/10/22 06:26:37 net device setup: enabled
2019/10/22 06:26:37 concurrency sanitizer: enabled
syzkaller login: [   56.812972][ T7291] ==================================================================
[   56.821119][ T7291] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   56.827694][ T7291] 
[   56.830014][ T7291] write to 0xffff888125243778 of 4 bytes by interrupt on cpu 1:
[   56.837629][ T7291]  tcp_queue_rcv+0xe9/0x380
[   56.842128][ T7291]  tcp_rcv_established+0xbf1/0xf50
[   56.847236][ T7291]  tcp_v4_do_rcv+0x381/0x4e0
[   56.851818][ T7291]  tcp_v4_rcv+0x19dc/0x1bb0
[   56.856312][ T7291]  ip_protocol_deliver_rcu+0x4d/0x420
[   56.861674][ T7291]  ip_local_deliver_finish+0x110/0x140
[   56.867126][ T7291]  ip_local_deliver+0x133/0x210
[   56.871964][ T7291]  ip_rcv_finish+0x121/0x160
[   56.876539][ T7291]  ip_rcv+0x18f/0x1a0
[   56.880497][ T7291]  __netif_receive_skb_one_core+0xa7/0xe0
[   56.886190][ T7291]  __netif_receive_skb+0x37/0xf0
[   56.891159][ T7291]  netif_receive_skb_internal+0x59/0x190
[   56.896801][ T7291]  napi_gro_receive+0x28f/0x330
[   56.901623][ T7291]  receive_buf+0x284/0x30b0
[   56.906093][ T7291] 
[   56.908455][ T7291] read to 0xffff888125243778 of 4 bytes by task 7291 on cpu 0:
[   56.915975][ T7291]  tcp_poll+0x204/0x6b0
[   56.920103][ T7291]  sock_poll+0xed/0x250
[   56.924242][ T7291]  ep_item_poll.isra.0+0x90/0x190
[   56.929272][ T7291]  ep_send_events_proc+0x113/0x590
[   56.934387][ T7291]  ep_scan_ready_list.constprop.0+0x189/0x500
[   56.940424][ T7291]  ep_poll+0xe3/0x900
[   56.944415][ T7291]  do_epoll_wait+0x162/0x180
[   56.948985][ T7291]  __x64_sys_epoll_pwait+0xcd/0x180
[   56.954172][ T7291]  do_syscall_64+0xcc/0x370
[   56.958652][ T7291]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   56.964512][ T7291] 
[   56.966811][ T7291] Reported by Kernel Concurrency Sanitizer on:
[   56.972942][ T7291] CPU: 0 PID: 7291 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   56.980370][ T7291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.990405][ T7291] ==================================================================
[   56.998442][ T7291] Kernel panic - not syncing: panic_on_warn set ...
[   57.005003][ T7291] CPU: 0 PID: 7291 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   57.012430][ T7291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.025952][ T7291] Call Trace:
[   57.029221][ T7291]  dump_stack+0xf5/0x159
[   57.033443][ T7291]  panic+0x210/0x640
[   57.037333][ T7291]  ? do_syscall_64+0xcc/0x370
[   57.041996][ T7291]  ? vprintk_func+0x8d/0x140
[   57.046563][ T7291]  kcsan_report.cold+0xc/0x10
[   57.051218][ T7291]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   57.056738][ T7291]  __tsan_read4+0x2c/0x30
[   57.061042][ T7291]  tcp_poll+0x204/0x6b0
[   57.065174][ T7291]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   57.070610][ T7291]  sock_poll+0xed/0x250
[   57.074741][ T7291]  ? sock_read_iter+0x1e0/0x1e0
[   57.079568][ T7291]  ep_item_poll.isra.0+0x90/0x190
[   57.084572][ T7291]  ep_send_events_proc+0x113/0x590
[   57.089660][ T7291]  ? __schedule+0x319/0x640
[   57.094146][ T7291]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   57.099778][ T7291]  ep_scan_ready_list.constprop.0+0x189/0x500
[   57.105824][ T7291]  ? ep_loop_check_proc+0x2f0/0x2f0
[   57.111000][ T7291]  ep_poll+0xe3/0x900
[   57.114971][ T7291]  ? wake_up_q+0x70/0x70
[   57.119189][ T7291]  do_epoll_wait+0x162/0x180
[   57.123754][ T7291]  __x64_sys_epoll_pwait+0xcd/0x180
[   57.128932][ T7291]  do_syscall_64+0xcc/0x370
[   57.133424][ T7291]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   57.139290][ T7291] RIP: 0033:0x45b300
[   57.143166][ T7291] 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
[   57.162744][ T7291] RSP: 002b:000000c42004b860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   57.171141][ T7291] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   57.179088][ T7291] RDX: 0000000000000080 RSI: 000000c42004b8a0 RDI: 0000000000000004
[   57.187035][ T7291] RBP: 000000c42004bea0 R08: 0000000000000000 R09: 0000000000002854
[   57.194994][ T7291] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000980
[   57.202943][ T7291] R13: 00000000000000ff R14: 00007feb7da39000 R15: 0000000000000008
[   57.212287][ T7291] Kernel Offset: disabled
[   57.216607][ T7291] Rebooting in 86400 seconds..