[   45.889651][   T25] audit: type=1800 audit(1575898930.241:27): pid=7505 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[   45.915315][   T25] audit: type=1800 audit(1575898930.331:28): pid=7505 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.
[   46.644726][   T25] audit: type=1800 audit(1575898931.061:29): pid=7505 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
[   46.665483][   T25] audit: type=1800 audit(1575898931.061:30): pid=7505 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 '10.128.0.122' (ECDSA) to the list of known hosts.
2019/12/09 13:42:20 fuzzer started
2019/12/09 13:42:21 dialing manager at 10.128.0.105:38603
2019/12/09 13:42:22 syscalls: 2689
2019/12/09 13:42:22 code coverage: enabled
2019/12/09 13:42:22 comparison tracing: enabled
2019/12/09 13:42:22 extra coverage: extra coverage is not supported by the kernel
2019/12/09 13:42:22 setuid sandbox: enabled
2019/12/09 13:42:22 namespace sandbox: enabled
2019/12/09 13:42:22 Android sandbox: /sys/fs/selinux/policy does not exist
2019/12/09 13:42:22 fault injection: enabled
2019/12/09 13:42:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/12/09 13:42:22 net packet injection: enabled
2019/12/09 13:42:22 net device setup: enabled
2019/12/09 13:42:22 concurrency sanitizer: enabled
2019/12/09 13:42:22 devlink PCI setup: PCI device 0000:00:10.0 is not available
2019/12/09 13:42:24 adding functions to KCSAN blacklist: 'pipe_poll' '__hrtimer_run_queues' 'xas_clear_mark' 'add_timer' 'tcp_add_backlog' 'ep_poll' 'find_next_bit' 'tomoyo_supervisor' 'dd_has_work' 'common_perm_cond' 
syzkaller login: [   64.601794][    T0] ==================================================================
[   64.610835][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_sched_do_timer
[   64.619313][    T0] 
[   64.621634][    T0] write to 0xffffffff85cb3ad0 of 4 bytes by interrupt on cpu 0:
[   64.629266][    T0]  tick_sched_do_timer+0xc0/0xe0
[   64.634186][    T0]  tick_sched_timer+0x43/0xe0
[   64.638843][    T0]  __hrtimer_run_queues+0x274/0x5f0
[   64.644022][    T0]  hrtimer_interrupt+0x22a/0x480
[   64.649184][    T0]  smp_apic_timer_interrupt+0xdc/0x280
[   64.654632][    T0]  apic_timer_interrupt+0xf/0x20
[   64.659552][    T0] 
[   64.661972][    T0] read to 0xffffffff85cb3ad0 of 4 bytes by task 0 on cpu 1:
[   64.669507][    T0]  tick_nohz_idle_stop_tick+0x193/0x670
[   64.675053][    T0]  do_idle+0x1a5/0x280
[   64.679099][    T0]  cpu_startup_entry+0x1b/0x20
[   64.683930][    T0]  start_secondary+0x168/0x1b0
[   64.688760][    T0]  secondary_startup_64+0xa4/0xb0
[   64.693760][    T0] 
[   64.696085][    T0] Reported by Kernel Concurrency Sanitizer on:
[   64.702360][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-syzkaller #0
[   64.709910][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.720002][    T0] ==================================================================
[   64.728349][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   64.734930][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-syzkaller #0
[   64.743761][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.754671][    T0] Call Trace:
[   64.757957][    T0]  dump_stack+0x11d/0x181
[   64.762400][    T0]  panic+0x210/0x640
[   64.766318][    T0]  ? vprintk_func+0x8d/0x140
[   64.770992][    T0]  kcsan_report.cold+0xc/0xd
[   64.775872][    T0]  kcsan_setup_watchpoint+0x3fe/0x460
[   64.781233][    T0]  __tsan_read4+0xc6/0x100
[   64.786254][    T0]  tick_nohz_idle_stop_tick+0x193/0x670
[   64.791798][    T0]  ? debug_smp_processor_id+0x4c/0x172
[   64.797322][    T0]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   64.803558][    T0]  do_idle+0x1a5/0x280
[   64.807617][    T0]  ? debug_smp_processor_id+0x47/0x172
[   64.813171][    T0]  cpu_startup_entry+0x1b/0x20
[   64.817924][    T0]  start_secondary+0x168/0x1b0
[   64.822669][    T0]  secondary_startup_64+0xa4/0xb0
[   64.829301][    T0] Kernel Offset: disabled
[   64.834587][    T0] Rebooting in 86400 seconds..