Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts.
2019/10/06 00:45:17 fuzzer started
2019/10/06 00:45:18 dialing manager at 10.128.0.105:35709
2019/10/06 00:45:18 syscalls: 2523
2019/10/06 00:45:18 code coverage: enabled
2019/10/06 00:45:18 comparison tracing: enabled
2019/10/06 00:45:18 extra coverage: extra coverage is not supported by the kernel
2019/10/06 00:45:18 setuid sandbox: enabled
2019/10/06 00:45:18 namespace sandbox: enabled
2019/10/06 00:45:18 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/06 00:45:18 fault injection: enabled
2019/10/06 00:45:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/06 00:45:18 net packet injection: enabled
2019/10/06 00:45:18 net device setup: enabled
2019/10/06 00:45:18 concurrency sanitizer: enabled
syzkaller login: [   44.524763][    T0] ==================================================================
[   44.532974][    T0] BUG: KCSAN: data-race in mod_timer / timer_clear_idle
[   44.539900][    T0] 
[   44.542216][    T0] read to 0xffff88812bf1b6e4 of 1 bytes by interrupt on cpu 0:
[   44.550005][    T0]  mod_timer+0x50d/0x7a0
[   44.554232][    T0]  sk_reset_timer+0x2d/0x70
[   44.558718][    T0]  tcp_send_delayed_ack+0x21d/0x2b0
[   44.563920][    T0]  __tcp_ack_snd_check+0x3c8/0x4e0
[   44.569039][    T0]  tcp_rcv_established+0xce9/0xf50
[   44.574146][    T0]  tcp_v4_do_rcv+0x381/0x4e0
[   44.578745][    T0]  tcp_v4_rcv+0x1a03/0x1bf0
[   44.583260][    T0]  ip_protocol_deliver_rcu+0x51/0x470
[   44.588630][    T0]  ip_local_deliver_finish+0x110/0x140
[   44.594087][    T0]  ip_local_deliver+0x133/0x210
[   44.599342][    T0]  ip_rcv_finish+0x121/0x160
[   44.603956][    T0]  ip_rcv+0x18f/0x1a0
[   44.608356][    T0]  __netif_receive_skb_one_core+0xa7/0xe0
[   44.614156][    T0]  __netif_receive_skb+0x37/0xf0
[   44.619074][    T0] 
[   44.621383][    T0] write to 0xffff88812bf1b6e4 of 1 bytes by task 0 on cpu 1:
[   44.628829][    T0]  timer_clear_idle+0x42/0x50
[   44.634928][    T0]  __tick_nohz_idle_restart_tick+0x36/0x1b0
[   44.640807][    T0]  tick_nohz_idle_exit+0x1af/0x1e0
[   44.645916][    T0]  do_idle+0xb0/0x2c0
[   44.649895][    T0]  cpu_startup_entry+0x1b/0x20
[   44.654694][    T0]  start_secondary+0x207/0x260
[   44.660010][    T0]  secondary_startup_64+0xa4/0xb0
[   44.665019][    T0] 
[   44.667328][    T0] Reported by Kernel Concurrency Sanitizer on:
[   44.673480][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0+ #0
[   44.680684][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.690860][    T0] ==================================================================
[   44.699353][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   44.706062][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0+ #0
[   44.712826][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.723108][    T0] Call Trace:
[   44.726414][    T0]  dump_stack+0xf5/0x159
[   44.731065][    T0]  panic+0x209/0x639
[   44.735016][    T0]  ? vprintk_func+0x8d/0x140
[   44.739613][    T0]  kcsan_report.cold+0x57/0xeb
[   44.744394][    T0]  __kcsan_setup_watchpoint+0x342/0x500
[   44.750104][    T0]  __tsan_write1+0x32/0x40
[   44.754515][    T0]  timer_clear_idle+0x42/0x50
[   44.759259][    T0]  __tick_nohz_idle_restart_tick+0x36/0x1b0
[   44.765157][    T0]  tick_nohz_idle_exit+0x1af/0x1e0
[   44.770393][    T0]  do_idle+0xb0/0x2c0
[   44.774372][    T0]  ? complete+0x44/0x50
[   44.778518][    T0]  cpu_startup_entry+0x1b/0x20
[   44.783404][    T0]  start_secondary+0x207/0x260
[   44.788162][    T0]  secondary_startup_64+0xa4/0xb0
[   44.794588][    T0] Kernel Offset: disabled
[   44.799034][    T0] Rebooting in 86400 seconds..