[ 51.808039][ T26] audit: type=1800 audit(1573083826.651:27): pid=7845 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 51.830902][ T26] audit: type=1800 audit(1573083826.651:28): pid=7845 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.
[ 52.741215][ T26] audit: type=1800 audit(1573083827.661:29): pid=7845 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
[ 52.761259][ T26] audit: type=1800 audit(1573083827.661:30): pid=7845 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 '10.128.15.200' (ECDSA) to the list of known hosts.
2019/11/06 23:43:57 fuzzer started
2019/11/06 23:43:59 dialing manager at 10.128.0.105:44951
2019/11/06 23:43:59 syscalls: 2553
2019/11/06 23:43:59 code coverage: enabled
2019/11/06 23:43:59 comparison tracing: enabled
2019/11/06 23:43:59 extra coverage: extra coverage is not supported by the kernel
2019/11/06 23:43:59 setuid sandbox: enabled
2019/11/06 23:43:59 namespace sandbox: enabled
2019/11/06 23:43:59 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/06 23:43:59 fault injection: enabled
2019/11/06 23:43:59 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/06 23:43:59 net packet injection: enabled
2019/11/06 23:43:59 net device setup: enabled
2019/11/06 23:43:59 concurrency sanitizer: enabled
2019/11/06 23:43:59 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 70.748692][ T0] ==================================================================
[ 70.756964][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 70.765883][ T0]
[ 70.768215][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 1:
[ 70.775845][ T0] tick_do_update_jiffies64+0x100/0x250
[ 70.781399][ T0] tick_sched_do_timer+0xd4/0xe0
[ 70.786431][ T0] tick_sched_timer+0x43/0xe0
[ 70.791110][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 70.796321][ T0] hrtimer_interrupt+0x22a/0x480
[ 70.801271][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 70.806734][ T0] apic_timer_interrupt+0xf/0x20
[ 70.811683][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 70.817059][ T0] __tsan_read1+0x13f/0x1e0
[ 70.821575][ T0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 70.827997][ T0] kallsyms_lookup_name+0x7f/0x120
[ 70.833110][ T0] debugfs_write+0x14b/0x2d0
[ 70.837705][ T0] full_proxy_write+0xbd/0x100
[ 70.842479][ T0] __vfs_write+0x67/0xc0
[ 70.846725][ T0] vfs_write+0x18a/0x390
[ 70.850972][ T0] ksys_write+0xd5/0x1b0
[ 70.855223][ T0] __x64_sys_write+0x4c/0x60
[ 70.859820][ T0] do_syscall_64+0xcc/0x370
[ 70.864329][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 70.870206][ T0]
[ 70.872539][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 0:
[ 70.879835][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 70.885295][ T0] tick_irq_enter+0x139/0x1c0
[ 70.889979][ T0] irq_enter+0x4f/0x60
[ 70.894059][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 70.899523][ T0] apic_timer_interrupt+0xf/0x20
[ 70.904475][ T0] native_safe_halt+0xe/0x10
[ 70.909069][ T0] arch_cpu_idle+0x1f/0x30
[ 70.913493][ T0] default_idle_call+0x1e/0x40
[ 70.918260][ T0] do_idle+0x1af/0x280
[ 70.922337][ T0] cpu_startup_entry+0x1b/0x20
[ 70.927117][ T0] rest_init+0xec/0xf6
[ 70.931197][ T0] arch_call_rest_init+0x17/0x37
[ 70.936145][ T0] start_kernel+0x838/0x85e
[ 70.940656][ T0] x86_64_start_reservations+0x29/0x2b
[ 70.946126][ T0] x86_64_start_kernel+0x72/0x76
[ 70.951068][ T0] secondary_startup_64+0xa4/0xb0
[ 70.956090][ T0]
[ 70.958410][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 70.964582][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 70.971690][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 70.981746][ T0] ==================================================================
[ 70.989806][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 70.996418][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 71.003523][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.013575][ T0] Call Trace:
[ 71.016849][ T0]
[ 71.019716][ T0] dump_stack+0xf5/0x159
[ 71.023964][ T0] panic+0x210/0x640
[ 71.027862][ T0] ? vprintk_func+0x8d/0x140
[ 71.032474][ T0] kcsan_report.cold+0xc/0xe
[ 71.037070][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 71.042456][ T0] __tsan_read8+0x145/0x1f0
[ 71.046977][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 71.052448][ T0] tick_irq_enter+0x139/0x1c0
[ 71.057139][ T0] irq_enter+0x4f/0x60
[ 71.061218][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 71.066684][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 71.072328][ T0] apic_timer_interrupt+0xf/0x20
[ 71.077258][ T0]
[ 71.080199][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 71.085586][ 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
[ 71.105191][ T0] RSP: 0018:ffffffff85a03de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 71.113612][ T0] RAX: 0000000000000016 RBX: ffffffff85a2b780 RCX: 0000ffffffffffff
[ 71.121585][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 71.129562][ T0] RBP: ffffffff85a03e18 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 71.137546][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000000
[ 71.145519][ T0] R13: ffffffff85a2b780 R14: 0000000000000000 R15: 0000000000000000
[ 71.153522][ T0] ? default_idle+0x50/0x230
[ 71.158127][ T0] arch_cpu_idle+0x1f/0x30
[ 71.162547][ T0] default_idle_call+0x1e/0x40
[ 71.167316][ T0] do_idle+0x1af/0x280
[ 71.171400][ T0] cpu_startup_entry+0x1b/0x20
[ 71.176187][ T0] rest_init+0xec/0xf6
[ 71.180272][ T0] ? trace_event_define_fields_vector_free_moved+0xce/0xce
[ 71.187477][ T0] arch_call_rest_init+0x17/0x37
[ 71.192425][ T0] start_kernel+0x838/0x85e
[ 71.196943][ T0] x86_64_start_reservations+0x29/0x2b
[ 71.202408][ T0] x86_64_start_kernel+0x72/0x76
[ 71.207351][ T0] secondary_startup_64+0xa4/0xb0
[ 71.213627][ T0] Kernel Offset: disabled
[ 71.217950][ T0] Rebooting in 86400 seconds..