Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts.
2020/07/31 11:38:50 fuzzer started
2020/07/31 11:38:50 dialing manager at 10.128.0.105:45289
2020/07/31 11:38:51 syscalls: 3254
2020/07/31 11:38:51 code coverage: enabled
2020/07/31 11:38:51 comparison tracing: enabled
2020/07/31 11:38:51 extra coverage: enabled
2020/07/31 11:38:51 setuid sandbox: enabled
2020/07/31 11:38:51 namespace sandbox: enabled
2020/07/31 11:38:51 Android sandbox: /sys/fs/selinux/policy does not exist
2020/07/31 11:38:51 fault injection: enabled
2020/07/31 11:38:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/07/31 11:38:51 net packet injection: enabled
2020/07/31 11:38:51 net device setup: enabled
2020/07/31 11:38:51 concurrency sanitizer: enabled
2020/07/31 11:38:51 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/07/31 11:38:51 USB emulation: enabled
2020/07/31 11:38:51 hci packet injection: enabled
2020/07/31 11:38:52 suppressing KCSAN reports in functions: '__ext4_new_inode' 'complete_signal' 'ext4_free_inode' 'blk_mq_dispatch_rq_list' 'pcpu_alloc' 'n_tty_receive_buf_common' 'alloc_pid' 'blk_mq_sched_dispatch_requests' '__xa_clear_mark' 'futex_wait_queue_me' 
syzkaller login: [   32.631261][ T8684] ==================================================================
[   32.639445][ T8684] BUG: KCSAN: data-race in do_epoll_wait / ep_poll_callback
[   32.646894][ T8684] 
[   32.649211][ T8684] write to 0xffff88812448b110 of 8 bytes by interrupt on cpu 0:
[   32.656936][ T8684]  ep_poll_callback+0x29c/0x510
[   32.661761][ T8684]  __wake_up_common+0xbc/0x130
[   32.666603][ T8684]  __wake_up_sync_key+0x83/0xc0
[   32.671432][ T8684]  sock_def_readable+0x61/0xe0
[   32.676167][ T8684]  tcp_rcv_established+0x13c0/0x1520
[   32.681442][ T8684]  tcp_v4_do_rcv+0x25e/0x480
[   32.686005][ T8684]  tcp_v4_rcv+0x219b/0x2420
[   32.690479][ T8684]  ip_protocol_deliver_rcu+0x1f9/0x400
[   32.695910][ T8684]  ip_local_deliver+0x1d6/0x2a0
[   32.700750][ T8684]  ip_sublist_rcv+0x4d4/0x5a0
[   32.705398][ T8684]  ip_list_rcv+0x262/0x290
[   32.709800][ T8684]  __netif_receive_skb_list_core+0x34b/0x450
[   32.715772][ T8684]  __netif_receive_skb_list+0x298/0x310
[   32.721313][ T8684]  netif_receive_skb_list_internal+0xda/0x330
[   32.727360][ T8684]  napi_gro_receive+0x329/0x5a0
[   32.732189][ T8684]  receive_buf+0x7a4/0xcf0
[   32.736575][ T8684]  virtnet_poll+0x2fa/0x780
[   32.741049][ T8684]  napi_poll+0x178/0x4a0
[   32.745531][ T8684]  net_rx_action+0x1ba/0x530
[   32.750186][ T8684]  __do_softirq+0x198/0x360
[   32.754666][ T8684]  run_ksoftirqd+0x2f/0x60
[   32.759059][ T8684]  smpboot_thread_fn+0x347/0x530
[   32.763968][ T8684]  kthread+0x20d/0x230
[   32.768010][ T8684]  ret_from_fork+0x1f/0x30
[   32.772419][ T8684] 
[   32.774756][ T8684] read to 0xffff88812448b110 of 8 bytes by task 8684 on cpu 1:
[   32.782288][ T8684]  do_epoll_wait+0x2e2/0x870
[   32.786881][ T8684]  __x64_sys_epoll_pwait+0x92/0x150
[   32.792076][ T8684]  do_syscall_64+0x51/0xb0
[   32.796478][ T8684]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   32.802335][ T8684] 
[   32.804649][ T8684] Reported by Kernel Concurrency Sanitizer on:
[   32.810792][ T8684] CPU: 1 PID: 8684 Comm: syz-fuzzer Not tainted 5.8.0-rc7-syzkaller #0
[   32.819690][ T8684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.829731][ T8684] ==================================================================
[   32.837773][ T8684] Kernel panic - not syncing: panic_on_warn set ...
[   32.844333][ T8684] CPU: 1 PID: 8684 Comm: syz-fuzzer Not tainted 5.8.0-rc7-syzkaller #0
[   32.852534][ T8684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.862909][ T8684] Call Trace:
[   32.866176][ T8684]  dump_stack+0x10f/0x19d
[   32.870841][ T8684]  panic+0x207/0x64a
[   32.874749][ T8684]  ? vprintk_emit+0x44a/0x4f0
[   32.879418][ T8684]  kcsan_report+0x684/0x690
[   32.883996][ T8684]  ? kcsan_setup_watchpoint+0x453/0x4d0
[   32.889866][ T8684]  ? do_epoll_wait+0x2e2/0x870
[   32.894605][ T8684]  ? __x64_sys_epoll_pwait+0x92/0x150
[   32.900210][ T8684]  ? do_syscall_64+0x51/0xb0
[   32.904777][ T8684]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   32.910905][ T8684]  ? ep_send_events_proc+0x4fd/0x620
[   32.916198][ T8684]  kcsan_setup_watchpoint+0x453/0x4d0
[   32.921553][ T8684]  do_epoll_wait+0x2e2/0x870
[   32.926137][ T8684]  ? debug_smp_processor_id+0x18/0x20
[   32.931570][ T8684]  __x64_sys_epoll_pwait+0x92/0x150
[   32.936831][ T8684]  do_syscall_64+0x51/0xb0
[   32.941313][ T8684]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   32.947175][ T8684] RIP: 0033:0x469240
[   32.951043][ T8684] 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
[   32.970636][ T8684] RSP: 002b:000000c00060f7f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   32.979032][ T8684] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000469240
[   32.986985][ T8684] RDX: 0000000000000080 RSI: 000000c00060f840 RDI: 0000000000000003
[   32.994952][ T8684] RBP: 000000c00060fe40 R08: 0000000000000000 R09: 0000000000000000
[   33.002921][ T8684] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000003
[   33.010864][ T8684] R13: 000000c000252300 R14: 0000000000000010 R15: 0000000000000010
[   33.020451][ T8684] Kernel Offset: disabled
[   33.024780][ T8684] Rebooting in 86400 seconds..