[ 62.396362][ T27] audit: type=1800 audit(1580970016.683:27): pid=7861 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 62.426529][ T27] audit: type=1800 audit(1580970016.683:28): pid=7861 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[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 63.316005][ T27] audit: type=1800 audit(1580970017.673:29): pid=7861 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
[ 63.336723][ T27] audit: type=1800 audit(1580970017.673:30): pid=7861 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 '10.128.10.33' (ECDSA) to the list of known hosts.
2020/02/06 06:20:27 fuzzer started
2020/02/06 06:20:29 dialing manager at 10.128.0.105:44419
2020/02/06 06:20:30 syscalls: 2904
2020/02/06 06:20:30 code coverage: enabled
2020/02/06 06:20:30 comparison tracing: enabled
2020/02/06 06:20:30 extra coverage: enabled
2020/02/06 06:20:30 setuid sandbox: enabled
2020/02/06 06:20:30 namespace sandbox: enabled
2020/02/06 06:20:30 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/06 06:20:30 fault injection: enabled
2020/02/06 06:20:30 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/06 06:20:30 net packet injection: enabled
2020/02/06 06:20:30 net device setup: enabled
2020/02/06 06:20:30 concurrency sanitizer: enabled
2020/02/06 06:20:30 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 81.728884][ C0] ==================================================================
[ 81.737226][ C0] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
[ 81.745050][ C0]
[ 81.747604][ C0] read to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 1:
[ 81.755335][ C0] hrtimer_active+0x84/0x1a0
[ 81.759943][ C0] task_tick_fair+0x4c/0x910
[ 81.765209][ C0] scheduler_tick+0x5f/0xf0
[ 81.770504][ C0] update_process_times+0x5a/0x80
[ 81.775791][ C0] tick_sched_handle+0x75/0x100
[ 81.780818][ C0] tick_sched_timer+0x58/0xe0
[ 81.785833][ C0] __hrtimer_run_queues+0x274/0x5f0
[ 81.791090][ C0] hrtimer_interrupt+0x22a/0x480
[ 81.799208][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 81.804722][ C0] apic_timer_interrupt+0xf/0x20
[ 81.809682][ C0] kcsan_setup_watchpoint+0x1d4/0x460
[ 81.815224][ C0] __tsan_unaligned_write1+0xc3/0x100
[ 81.820707][ C0] kallsyms_expand_symbol.constprop.0+0xe8/0x160
[ 81.828183][ C0] kallsyms_lookup_name+0x7f/0x120
[ 81.833313][ C0] debugfs_write+0x14b/0x2d0
[ 81.837953][ C0] full_proxy_write+0xbd/0x100
[ 81.842728][ C0] __vfs_write+0x67/0xc0
[ 81.847114][ C0] vfs_write+0x18a/0x390
[ 81.851369][ C0] ksys_write+0xd5/0x1b0
[ 81.855620][ C0] __x64_sys_write+0x4c/0x60
[ 81.860221][ C0] do_syscall_64+0xcc/0x3a0
[ 81.864772][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 81.870751][ C0]
[ 81.873182][ C0] write to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 0:
[ 81.882250][ C0] __hrtimer_run_queues+0x1e8/0x5f0
[ 81.887454][ C0] hrtimer_interrupt+0x22a/0x480
[ 81.892541][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 81.898131][ C0] apic_timer_interrupt+0xf/0x20
[ 81.903084][ C0] native_safe_halt+0xe/0x10
[ 81.907690][ C0] arch_cpu_idle+0xa/0x10
[ 81.912041][ C0] default_idle_call+0x1e/0x40
[ 81.917003][ C0] do_idle+0x1c2/0x290
[ 81.921753][ C0] cpu_startup_entry+0x1b/0x20
[ 81.926541][ C0] rest_init+0xec/0xf6
[ 81.930624][ C0] arch_call_rest_init+0x17/0x37
[ 81.935564][ C0] start_kernel+0x838/0x85e
[ 81.940202][ C0] x86_64_start_reservations+0x29/0x2b
[ 81.945671][ C0] x86_64_start_kernel+0x72/0x76
[ 81.950610][ C0] secondary_startup_64+0xa4/0xb0
[ 81.955733][ C0]
[ 81.958060][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 81.964235][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 81.972152][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 81.982310][ C0] ==================================================================
[ 81.990383][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 81.997119][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 82.005011][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 82.015108][ C0] Call Trace:
[ 82.018500][ C0]
[ 82.021380][ C0] dump_stack+0x11d/0x181
[ 82.025724][ C0] panic+0x210/0x640
[ 82.029624][ C0] ? vprintk_func+0x8d/0x140
[ 82.034237][ C0] kcsan_report.cold+0xc/0xd
[ 82.038834][ C0] kcsan_setup_watchpoint+0x3fe/0x460
[ 82.044224][ C0] __tsan_unaligned_write8+0xc7/0x110
[ 82.049603][ C0] __hrtimer_run_queues+0x1e8/0x5f0
[ 82.054926][ C0] ? ktime_get_update_offsets_now+0x28f/0x2f0
[ 82.061038][ C0] hrtimer_interrupt+0x22a/0x480
[ 82.065989][ C0] ? sched_clock+0x13/0x20
[ 82.070422][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 82.076512][ C0] apic_timer_interrupt+0xf/0x20
[ 82.081538][ C0]
[ 82.084502][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 82.089887][ C0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 4c e6 59 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 3c e6 59 00 fb f4 cc 55 48 89 e5 41 55 41 54 53 e8 d2 57 91 fc e8 fd da ab fd 0f
[ 82.109657][ C0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 82.118083][ C0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82546c55
[ 82.126065][ C0] RDX: 0000000000000000 RSI: ffffffff82546c5e RDI: 0000000000000005
[ 82.134059][ C0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2d160
[ 82.142060][ C0] R10: 0000ffff85c03e08 R11: 0000ffff85a2d167 R12: 0000000000000000
[ 82.150153][ C0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 82.158155][ C0] ? debug_smp_processor_id+0x35/0x137
[ 82.163892][ C0] ? debug_smp_processor_id+0x3e/0x137
[ 82.169393][ C0] ? default_idle+0x26/0x180
[ 82.173996][ C0] arch_cpu_idle+0xa/0x10
[ 82.178428][ C0] default_idle_call+0x1e/0x40
[ 82.183209][ C0] do_idle+0x1c2/0x290
[ 82.187388][ C0] ? debug_smp_processor_id+0x43/0x137
[ 82.192861][ C0] cpu_startup_entry+0x1b/0x20
[ 82.197625][ C0] rest_init+0xec/0xf6
[ 82.201730][ C0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 82.209075][ C0] arch_call_rest_init+0x17/0x37
[ 82.214025][ C0] start_kernel+0x838/0x85e
[ 82.218529][ C0] x86_64_start_reservations+0x29/0x2b
[ 82.224009][ C0] x86_64_start_kernel+0x72/0x76
[ 82.228961][ C0] secondary_startup_64+0xa4/0xb0
[ 82.235526][ C0] Kernel Offset: disabled
[ 82.239857][ C0] Rebooting in 86400 seconds..