[ 51.000720][ T26] audit: type=1800 audit(1573175364.654:27): pid=7859 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 51.023020][ T26] audit: type=1800 audit(1573175364.654:28): pid=7859 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.
[ 51.836815][ T26] audit: type=1800 audit(1573175365.564:29): pid=7859 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
[ 51.856943][ T26] audit: type=1800 audit(1573175365.564:30): pid=7859 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 '10.128.0.208' (ECDSA) to the list of known hosts.
2019/11/08 01:09:36 fuzzer started
2019/11/08 01:09:38 dialing manager at 10.128.0.105:38105
2019/11/08 01:09:38 syscalls: 2553
2019/11/08 01:09:38 code coverage: enabled
2019/11/08 01:09:38 comparison tracing: enabled
2019/11/08 01:09:38 extra coverage: extra coverage is not supported by the kernel
2019/11/08 01:09:38 setuid sandbox: enabled
2019/11/08 01:09:38 namespace sandbox: enabled
2019/11/08 01:09:38 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/08 01:09:38 fault injection: enabled
2019/11/08 01:09:38 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/08 01:09:38 net packet injection: enabled
2019/11/08 01:09:38 net device setup: enabled
2019/11/08 01:09:38 concurrency sanitizer: enabled
2019/11/08 01:09:38 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 69.196317][ T0] ==================================================================
[ 69.204476][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 69.213395][ T0]
[ 69.215724][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 0:
[ 69.223376][ T0] tick_do_update_jiffies64+0x100/0x250
[ 69.228931][ T0] tick_sched_do_timer+0xd4/0xe0
[ 69.233871][ T0] tick_sched_timer+0x43/0xe0
[ 69.238549][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 69.243750][ T0] hrtimer_interrupt+0x22a/0x480
[ 69.248703][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 69.254179][ T0] apic_timer_interrupt+0xf/0x20
[ 69.259119][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 69.264490][ T0] __tsan_read1+0x13f/0x1e0
[ 69.268997][ T0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 69.275416][ T0] kallsyms_lookup_name+0x7f/0x120
[ 69.280520][ T0] debugfs_write+0x14b/0x2d0
[ 69.285110][ T0] full_proxy_write+0xbd/0x100
[ 69.289888][ T0] __vfs_write+0x67/0xc0
[ 69.294136][ T0] vfs_write+0x18a/0x390
[ 69.298385][ T0] ksys_write+0xd5/0x1b0
[ 69.302623][ T0] __x64_sys_write+0x4c/0x60
[ 69.307218][ T0] do_syscall_64+0xcc/0x370
[ 69.311729][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 69.317607][ T0]
[ 69.319948][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 1:
[ 69.327236][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 69.332707][ T0] tick_irq_enter+0x139/0x1c0
[ 69.337404][ T0] irq_enter+0x4f/0x60
[ 69.341474][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 69.346939][ T0] apic_timer_interrupt+0xf/0x20
[ 69.351889][ T0] native_safe_halt+0xe/0x10
[ 69.356497][ T0] arch_cpu_idle+0x1f/0x30
[ 69.360912][ T0] default_idle_call+0x1e/0x40
[ 69.365676][ T0] do_idle+0x1af/0x280
[ 69.369745][ T0] cpu_startup_entry+0x1b/0x20
[ 69.374536][ T0] start_secondary+0x208/0x260
[ 69.379305][ T0] secondary_startup_64+0xa4/0xb0
[ 69.384315][ T0]
[ 69.386635][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 69.392789][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc6+ #0
[ 69.399903][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 69.410062][ T0] ==================================================================
[ 69.418117][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 69.424703][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc6+ #0
[ 69.431804][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 69.441862][ T0] Call Trace:
[ 69.445142][ T0]
[ 69.448007][ T0] dump_stack+0xf5/0x159
[ 69.452257][ T0] panic+0x210/0x640
[ 69.456181][ T0] ? vprintk_func+0x8d/0x140
[ 69.460786][ T0] kcsan_report.cold+0xc/0xe
[ 69.465390][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 69.470761][ T0] __tsan_read8+0x145/0x1f0
[ 69.475283][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 69.480754][ T0] tick_irq_enter+0x139/0x1c0
[ 69.485441][ T0] irq_enter+0x4f/0x60
[ 69.489518][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 69.494977][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 69.500618][ T0] apic_timer_interrupt+0xf/0x20
[ 69.505548][ T0]
[ 69.508495][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 69.513881][ 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
[ 69.533486][ T0] RSP: 0018:ffffc90000cd3e48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 69.541932][ T0] RAX: 0000000000000016 RBX: ffff88812b3850c0 RCX: 0000ffffffffffff
[ 69.549917][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 69.557905][ T0] RBP: ffffc90000cd3e80 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 69.565881][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000001
[ 69.573856][ T0] R13: ffff88812b3850c0 R14: 0000000000000000 R15: 0000000000000000
[ 69.581855][ T0] ? default_idle+0x50/0x230
[ 69.586458][ T0] arch_cpu_idle+0x1f/0x30
[ 69.590879][ T0] default_idle_call+0x1e/0x40
[ 69.595650][ T0] do_idle+0x1af/0x280
[ 69.599720][ T0] ? complete+0x44/0x50
[ 69.603895][ T0] cpu_startup_entry+0x1b/0x20
[ 69.608668][ T0] start_secondary+0x208/0x260
[ 69.613720][ T0] secondary_startup_64+0xa4/0xb0
[ 69.620186][ T0] Kernel Offset: disabled
[ 69.624518][ T0] Rebooting in 86400 seconds..