[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts.
2020/06/05 15:59:47 fuzzer started
2020/06/05 15:59:47 dialing manager at 10.128.0.105:41441
2020/06/05 15:59:47 syscalls: 3055
2020/06/05 15:59:47 code coverage: enabled
2020/06/05 15:59:47 comparison tracing: enabled
2020/06/05 15:59:47 extra coverage: enabled
2020/06/05 15:59:47 setuid sandbox: enabled
2020/06/05 15:59:47 namespace sandbox: enabled
2020/06/05 15:59:47 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/05 15:59:47 fault injection: enabled
2020/06/05 15:59:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/05 15:59:47 net packet injection: enabled
2020/06/05 15:59:47 net device setup: enabled
2020/06/05 15:59:47 concurrency sanitizer: enabled
2020/06/05 15:59:47 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/05 15:59:47 USB emulation: enabled
syzkaller login: [   50.625145][ T8916] KCSAN: could not find function: '_find_next_bit'
2020/06/05 15:59:51 adding functions to KCSAN blacklist: 'blk_mq_get_request' 'add_timer' 'generic_fillattr' '__perf_event_overflow' 'ext4_free_inodes_count' 'blk_mq_dispatch_rq_list' 'shmem_file_read_iter' '_find_next_bit' 'find_get_pages_range_tag' 'dd_has_work' 'mod_timer' 'echo_char' 'generic_write_end' 'wbt_done' 'xas_clear_mark' 'kauditd_thread' 'pcpu_alloc' '__ext4_new_inode' 'file_update_time' 'ep_poll' 'alloc_pid' 'decrypt_packet' 'install_new_memslots' 'generic_update_time' 'futex_wait_queue_me' 'do_syslog' 'page_counter_charge' 'do_nanosleep' 'blk_mq_sched_dispatch_requests' 'tick_sched_do_timer' 'copy_process' 'run_timer_softirq' 
[  106.714816][    T0] ==================================================================
[  106.723211][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event
[  106.731760][    T0] 
[  106.734078][    T0] write to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 1:
[  106.741424][    T0]  tick_nohz_idle_stop_tick+0x52c/0x680
[  106.746987][    T0]  do_idle+0x1ad/0x290
[  106.751035][    T0]  cpu_startup_entry+0x14/0x20
[  106.755790][    T0]  start_secondary+0x169/0x1b0
[  106.760545][    T0]  secondary_startup_64+0xa4/0xb0
[  106.765534][    T0] 
[  106.767854][    T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0:
[  106.775125][    T0]  tick_nohz_next_event+0x181/0x340
[  106.780298][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[  106.785817][    T0]  do_idle+0x1ad/0x290
[  106.789861][    T0]  cpu_startup_entry+0x14/0x20
[  106.794609][    T0]  rest_init+0xe4/0xeb
[  106.798664][    T0]  arch_call_rest_init+0x13/0x2b
[  106.803604][    T0]  start_kernel+0x7fe/0x823
[  106.808081][    T0]  secondary_startup_64+0xa4/0xb0
[  106.813068][    T0] 
[  106.815366][    T0] Reported by Kernel Concurrency Sanitizer on:
[  106.821522][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[  106.829418][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  106.839464][    T0] ==================================================================
[  106.847522][    T0] Kernel panic - not syncing: panic_on_warn set ...
[  106.854099][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[  106.861963][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  106.872016][    T0] Call Trace:
[  106.875281][    T0]  dump_stack+0x11d/0x187
[  106.879586][    T0]  panic+0x210/0x640
[  106.883474][    T0]  ? vprintk_func+0x89/0x13a
[  106.888040][    T0]  kcsan_report.cold+0xc/0x1a
[  106.892712][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[  106.898064][    T0]  tick_nohz_next_event+0x181/0x340
[  106.903237][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[  106.908768][    T0]  ? rcu_dynticks_eqs_exit+0x2c/0x60
[  106.914058][    T0]  ? debug_smp_processor_id+0x3f/0x129
[  106.919543][    T0]  do_idle+0x1ad/0x290
[  106.923606][    T0]  ? debug_smp_processor_id+0x3f/0x129
[  106.929079][    T0]  cpu_startup_entry+0x14/0x20
[  106.933826][    T0]  rest_init+0xe4/0xeb
[  106.937880][    T0]  ? trace_init_perf_perm_irq_work_exit+0xe/0xe
[  106.944104][    T0]  arch_call_rest_init+0x13/0x2b
[  106.949011][    T0]  start_kernel+0x7fe/0x823
[  106.953492][    T0]  secondary_startup_64+0xa4/0xb0
[  106.959526][    T0] Kernel Offset: disabled
[  106.963839][    T0] Rebooting in 86400 seconds..