[ 56.760041][ T26] audit: type=1800 audit(1573292729.197:27): pid=7787 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 56.780565][ T26] audit: type=1800 audit(1573292729.207:28): pid=7787 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.
[ 57.717020][ T26] audit: type=1800 audit(1573292730.207:29): pid=7787 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
[ 57.736964][ T26] audit: type=1800 audit(1573292730.207:30): pid=7787 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 '10.128.0.246' (ECDSA) to the list of known hosts.
2019/11/09 09:45:40 fuzzer started
2019/11/09 09:45:42 dialing manager at 10.128.0.105:41185
2019/11/09 09:45:43 syscalls: 2553
2019/11/09 09:45:43 code coverage: enabled
2019/11/09 09:45:43 comparison tracing: enabled
2019/11/09 09:45:43 extra coverage: extra coverage is not supported by the kernel
2019/11/09 09:45:43 setuid sandbox: enabled
2019/11/09 09:45:43 namespace sandbox: enabled
2019/11/09 09:45:43 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/09 09:45:43 fault injection: enabled
2019/11/09 09:45:43 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/09 09:45:43 net packet injection: enabled
2019/11/09 09:45:43 net device setup: enabled
2019/11/09 09:45:43 concurrency sanitizer: enabled
2019/11/09 09:45:43 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 77.451523][ T0] ==================================================================
[ 77.459692][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 77.468608][ T0]
[ 77.470953][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 1:
[ 77.478585][ T0] tick_do_update_jiffies64+0x100/0x250
[ 77.484129][ T0] tick_sched_do_timer+0xd4/0xe0
[ 77.489074][ T0] tick_sched_timer+0x43/0xe0
[ 77.493816][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 77.499011][ T0] hrtimer_interrupt+0x22a/0x480
[ 77.504009][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 77.509468][ T0] apic_timer_interrupt+0xf/0x20
[ 77.514494][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 77.520214][ T0] __tsan_read1+0x13f/0x1e0
[ 77.524722][ T0] kallsyms_expand_symbol.constprop.0+0x70/0x160
[ 77.531084][ T0] kallsyms_lookup_name+0x7f/0x120
[ 77.536211][ T0] debugfs_write+0x14b/0x2d0
[ 77.540801][ T0] full_proxy_write+0xbd/0x100
[ 77.545561][ T0] __vfs_write+0x67/0xc0
[ 77.549815][ T0] vfs_write+0x18a/0x390
[ 77.554057][ T0] ksys_write+0xd5/0x1b0
[ 77.558382][ T0] __x64_sys_write+0x4c/0x60
[ 77.562971][ T0] do_syscall_64+0xcc/0x370
[ 77.567583][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 77.573487][ T0]
[ 77.575822][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 0:
[ 77.583126][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 77.598392][ T0] tick_irq_enter+0x139/0x1c0
[ 77.603067][ T0] irq_enter+0x4f/0x60
[ 77.607145][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 77.612606][ T0] apic_timer_interrupt+0xf/0x20
[ 77.617543][ T0] native_safe_halt+0xe/0x10
[ 77.622141][ T0] arch_cpu_idle+0x1f/0x30
[ 77.626556][ T0] default_idle_call+0x1e/0x40
[ 77.631322][ T0] do_idle+0x1af/0x280
[ 77.635413][ T0] cpu_startup_entry+0x1b/0x20
[ 77.640171][ T0] rest_init+0xec/0xf6
[ 77.644239][ T0] arch_call_rest_init+0x17/0x37
[ 77.649180][ T0] start_kernel+0x838/0x85e
[ 77.653686][ T0] x86_64_start_reservations+0x29/0x2b
[ 77.659144][ T0] x86_64_start_kernel+0x72/0x76
[ 77.664088][ T0] secondary_startup_64+0xa4/0xb0
[ 77.669092][ T0]
[ 77.671409][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 77.677567][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 77.684672][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 77.694724][ T0] ==================================================================
[ 77.702781][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 77.709372][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 77.716487][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 77.726535][ T0] Call Trace:
[ 77.729819][ T0]
[ 77.732680][ T0] dump_stack+0xf5/0x159
[ 77.736924][ T0] panic+0x210/0x640
[ 77.740826][ T0] ? vprintk_func+0x8d/0x140
[ 77.745420][ T0] kcsan_report.cold+0xc/0xe
[ 77.750040][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 77.755427][ T0] __tsan_read8+0x145/0x1f0
[ 77.759947][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 77.765417][ T0] tick_irq_enter+0x139/0x1c0
[ 77.770104][ T0] irq_enter+0x4f/0x60
[ 77.774185][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 77.779648][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 77.785281][ T0] apic_timer_interrupt+0xf/0x20
[ 77.790207][ T0]
[ 77.793153][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 77.798564][ T0] Code: 90 90 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 6c 00 4c 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 5c 00 4c 00 fb f4 90 55 48 89 e5 41 55 41 54 53 e8 32 36 a4 fc e8 4d 82 b8 fd 0f
[ 77.818469][ T0] RSP: 0018:ffffffff85a03de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 77.826991][ T0] RAX: 0000000000000016 RBX: ffffffff85a2b780 RCX: 0000ffffffffffff
[ 77.834961][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 77.843110][ T0] RBP: ffffffff85a03e18 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 77.851090][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000000
[ 77.859065][ T0] R13: ffffffff85a2b780 R14: 0000000000000000 R15: 0000000000000000
[ 77.867094][ T0] ? default_idle+0x50/0x230
[ 77.871698][ T0] arch_cpu_idle+0x1f/0x30
[ 77.876128][ T0] default_idle_call+0x1e/0x40
[ 77.880906][ T0] do_idle+0x1af/0x280
[ 77.884989][ T0] cpu_startup_entry+0x1b/0x20
[ 77.889842][ T0] rest_init+0xec/0xf6
[ 77.894115][ T0] ? trace_event_define_fields_vector_free_moved+0xce/0xce
[ 77.901325][ T0] arch_call_rest_init+0x17/0x37
[ 77.906269][ T0] start_kernel+0x838/0x85e
[ 77.910793][ T0] x86_64_start_reservations+0x29/0x2b
[ 77.916256][ T0] x86_64_start_kernel+0x72/0x76
[ 77.921210][ T0] secondary_startup_64+0xa4/0xb0
[ 77.926994][ T0] Kernel Offset: disabled
[ 77.931490][ T0] Rebooting in 86400 seconds..