[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts.
2020/05/29 14:06:42 fuzzer started
2020/05/29 14:06:42 dialing manager at 10.128.0.105:37521
2020/05/29 14:06:44 syscalls: 3055
2020/05/29 14:06:44 code coverage: enabled
2020/05/29 14:06:44 comparison tracing: enabled
2020/05/29 14:06:44 extra coverage: enabled
2020/05/29 14:06:44 setuid sandbox: enabled
2020/05/29 14:06:44 namespace sandbox: enabled
2020/05/29 14:06:44 Android sandbox: /sys/fs/selinux/policy does not exist
2020/05/29 14:06:44 fault injection: enabled
2020/05/29 14:06:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/05/29 14:06:44 net packet injection: enabled
2020/05/29 14:06:44 net device setup: enabled
2020/05/29 14:06:44 concurrency sanitizer: enabled
2020/05/29 14:06:44 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/05/29 14:06:44 USB emulation: enabled
2020/05/29 14:06:45 adding functions to KCSAN blacklist: 'futex_wait_queue_me' 'page_counter_charge' 'find_get_pages_range_tag' 'xas_clear_mark' 'ext4_mb_good_group' '__ext4_new_inode' 'copy_process' 'n_tty_receive_buf_common' 'file_update_time' 'ep_poll' 'generic_write_end' 'do_nanosleep' 
syzkaller login: [   67.530534][    T0] ==================================================================
[   67.538792][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event
[   67.547365][    T0] 
[   67.549692][    T0] write to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0:
[   67.557074][    T0]  tick_nohz_idle_stop_tick+0x52c/0x680
[   67.562654][    T0]  do_idle+0x1ad/0x290
[   67.566725][    T0]  cpu_startup_entry+0x14/0x20
[   67.571487][    T0]  rest_init+0xe4/0xeb
[   67.575575][    T0]  arch_call_rest_init+0x13/0x2b
[   67.580509][    T0]  start_kernel+0x7fe/0x823
[   67.585013][    T0]  secondary_startup_64+0xa4/0xb0
[   67.590020][    T0] 
[   67.592353][    T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 1:
[   67.599645][    T0]  tick_nohz_next_event+0x181/0x340
[   67.604873][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   67.610416][    T0]  do_idle+0x1ad/0x290
[   67.614490][    T0]  cpu_startup_entry+0x14/0x20
[   67.619254][    T0]  start_secondary+0x169/0x1b0
[   67.624049][    T0]  secondary_startup_64+0xa4/0xb0
[   67.629061][    T0] 
[   67.631377][    T0] Reported by Kernel Concurrency Sanitizer on:
[   67.637530][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[   67.645411][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.655466][    T0] ==================================================================
[   67.663532][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   67.670154][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[   67.678042][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.688099][    T0] Call Trace:
[   67.691393][    T0]  dump_stack+0x11d/0x187
[   67.695724][    T0]  panic+0x210/0x640
[   67.699632][    T0]  ? vprintk_func+0x89/0x13a
[   67.704252][    T0]  kcsan_report.cold+0xc/0x1a
[   67.708934][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[   67.714327][    T0]  tick_nohz_next_event+0x181/0x340
[   67.719557][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   67.725108][    T0]  ? rcu_dynticks_eqs_exit+0x2c/0x60
[   67.730396][    T0]  ? debug_smp_processor_id+0x3f/0x129
[   67.735868][    T0]  do_idle+0x1ad/0x290
[   67.739940][    T0]  ? debug_smp_processor_id+0x3a/0x129
[   67.745407][    T0]  cpu_startup_entry+0x14/0x20
[   67.750177][    T0]  start_secondary+0x169/0x1b0
[   67.754951][    T0]  secondary_startup_64+0xa4/0xb0
[   67.761260][    T0] Kernel Offset: disabled
[   67.765580][    T0] Rebooting in 86400 seconds..