[   48.695903][   T27] audit: type=1800 audit(1581528914.395:27): pid=7852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[   48.730493][   T27] audit: type=1800 audit(1581528914.395:28): pid=7852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.
[   49.757984][   T27] audit: type=1800 audit(1581528915.495:29): pid=7852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0
[   49.779437][   T27] audit: type=1800 audit(1581528915.495:30): pid=7852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts.
2020/02/12 17:35:26 fuzzer started
2020/02/12 17:35:28 dialing manager at 10.128.0.105:43163
2020/02/12 17:35:29 syscalls: 2905
2020/02/12 17:35:29 code coverage: enabled
2020/02/12 17:35:29 comparison tracing: enabled
2020/02/12 17:35:29 extra coverage: enabled
2020/02/12 17:35:29 setuid sandbox: enabled
2020/02/12 17:35:29 namespace sandbox: enabled
2020/02/12 17:35:29 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/12 17:35:29 fault injection: enabled
2020/02/12 17:35:29 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/12 17:35:29 net packet injection: enabled
2020/02/12 17:35:29 net device setup: enabled
2020/02/12 17:35:29 concurrency sanitizer: enabled
2020/02/12 17:35:29 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/02/12 17:35:30 adding functions to KCSAN blacklist: 'ext4_nonda_switch' 'tomoyo_supervisor' 'ep_poll' 'taskstats_exit' 'wbt_done' '__lru_cache_add' 'find_get_pages_range_tag' 'vm_area_dup' 'ext4_free_inode' 'run_timer_softirq' 
syzkaller login: [   78.550128][    T0] ==================================================================
[   78.558425][    T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[   78.567330][    T0] 
[   78.569640][    T0] write to 0xffffffff8624d7c8 of 8 bytes by interrupt on cpu 1:
[   78.577273][    T0]  tick_do_update_jiffies64+0x100/0x250
[   78.582810][    T0]  tick_sched_do_timer+0xd4/0xe0
[   78.587773][    T0]  tick_sched_timer+0x43/0xe0
[   78.592438][    T0]  __hrtimer_run_queues+0x274/0x5f0
[   78.597614][    T0]  hrtimer_interrupt+0x22a/0x480
[   78.602537][    T0]  smp_apic_timer_interrupt+0xdc/0x280
[   78.607988][    T0]  apic_timer_interrupt+0xf/0x20
[   78.612943][    T0] 
[   78.615257][    T0] read to 0xffffffff8624d7c8 of 8 bytes by task 0 on cpu 0:
[   78.622530][    T0]  tick_do_update_jiffies64+0x2b/0x250
[   78.627972][    T0]  __tick_nohz_idle_restart_tick+0x31/0x1b0
[   78.633852][    T0]  tick_nohz_idle_exit+0x1af/0x1e0
[   78.639003][    T0]  do_idle+0xb1/0x290
[   78.642967][    T0]  cpu_startup_entry+0x1b/0x20
[   78.647714][    T0]  rest_init+0xec/0xf6
[   78.651804][    T0]  arch_call_rest_init+0x17/0x37
[   78.656723][    T0]  start_kernel+0x838/0x85e
[   78.661235][    T0]  x86_64_start_reservations+0x29/0x2b
[   78.666677][    T0]  x86_64_start_kernel+0x72/0x76
[   78.671655][    T0]  secondary_startup_64+0xa4/0xb0
[   78.676695][    T0] 
[   78.678997][    T0] Reported by Kernel Concurrency Sanitizer on:
[   78.685279][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[   78.693186][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   78.703228][    T0] ==================================================================
[   78.711325][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   78.717909][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[   78.725909][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   78.735954][    T0] Call Trace:
[   78.739234][    T0]  dump_stack+0x11d/0x181
[   78.743555][    T0]  panic+0x210/0x640
[   78.747434][    T0]  ? vprintk_func+0x8d/0x140
[   78.752026][    T0]  kcsan_report.cold+0xc/0x15
[   78.756695][    T0]  kcsan_setup_watchpoint+0x2e2/0x380
[   78.762053][    T0]  __tsan_read8+0xc6/0x100
[   78.766451][    T0]  tick_do_update_jiffies64+0x2b/0x250
[   78.771905][    T0]  __tick_nohz_idle_restart_tick+0x31/0x1b0
[   78.777901][    T0]  tick_nohz_idle_exit+0x1af/0x1e0
[   78.783005][    T0]  do_idle+0xb1/0x290
[   78.786967][    T0]  ? debug_smp_processor_id+0x43/0x137
[   78.792415][    T0]  cpu_startup_entry+0x1b/0x20
[   78.797183][    T0]  rest_init+0xec/0xf6
[   78.801308][    T0]  ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[   78.808496][    T0]  arch_call_rest_init+0x17/0x37
[   78.813414][    T0]  start_kernel+0x838/0x85e
[   78.817908][    T0]  x86_64_start_reservations+0x29/0x2b
[   78.823357][    T0]  x86_64_start_kernel+0x72/0x76
[   78.828344][    T0]  secondary_startup_64+0xa4/0xb0
[   78.834754][    T0] Kernel Offset: disabled
[   78.839454][    T0] Rebooting in 86400 seconds..