[ 57.704082][ T26] audit: type=1800 audit(1573400528.770:27): pid=7809 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 57.729802][ T26] audit: type=1800 audit(1573400528.770:28): pid=7809 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.
[ 58.531528][ T26] audit: type=1800 audit(1573400529.650:29): pid=7809 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
[ 58.555656][ T26] audit: type=1800 audit(1573400529.660:30): pid=7809 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 '10.128.0.44' (ECDSA) to the list of known hosts.
2019/11/10 15:42:19 fuzzer started
2019/11/10 15:42:21 dialing manager at 10.128.0.105:33901
2019/11/10 15:42:21 syscalls: 2553
2019/11/10 15:42:21 code coverage: enabled
2019/11/10 15:42:21 comparison tracing: enabled
2019/11/10 15:42:21 extra coverage: extra coverage is not supported by the kernel
2019/11/10 15:42:21 setuid sandbox: enabled
2019/11/10 15:42:21 namespace sandbox: enabled
2019/11/10 15:42:21 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/10 15:42:21 fault injection: enabled
2019/11/10 15:42:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/10 15:42:21 net packet injection: enabled
2019/11/10 15:42:21 net device setup: enabled
2019/11/10 15:42:21 concurrency sanitizer: enabled
2019/11/10 15:42:21 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 72.232911][ T0] ==================================================================
[ 72.241289][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 72.250207][ T0]
[ 72.252538][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 0:
[ 72.260263][ T0] tick_do_update_jiffies64+0x100/0x250
[ 72.265819][ T0] tick_sched_do_timer+0xd4/0xe0
[ 72.270758][ T0] tick_sched_timer+0x43/0xe0
[ 72.276124][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 72.281412][ T0] hrtimer_interrupt+0x22a/0x480
[ 72.286351][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 72.291808][ T0] apic_timer_interrupt+0xf/0x20
[ 72.296747][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 72.302122][ T0] __tsan_unaligned_write1+0x13d/0x1e0
[ 72.307586][ T0] kallsyms_expand_symbol.constprop.0+0xe8/0x160
[ 72.314522][ T0] kallsyms_lookup_name+0x7f/0x120
[ 72.319633][ T0] debugfs_write+0x14b/0x2d0
[ 72.324228][ T0] full_proxy_write+0xbd/0x100
[ 72.328998][ T0] __vfs_write+0x67/0xc0
[ 72.333239][ T0] vfs_write+0x18a/0x390
[ 72.337483][ T0] ksys_write+0xd5/0x1b0
[ 72.341821][ T0] __x64_sys_write+0x4c/0x60
[ 72.346585][ T0] do_syscall_64+0xcc/0x370
[ 72.351095][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 72.356982][ T0]
[ 72.359321][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 1:
[ 72.366604][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 72.372062][ T0] tick_irq_enter+0x139/0x1c0
[ 72.377270][ T0] irq_enter+0x4f/0x60
[ 72.381352][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 72.386813][ T0] apic_timer_interrupt+0xf/0x20
[ 72.391757][ T0] native_safe_halt+0xe/0x10
[ 72.396523][ T0] arch_cpu_idle+0x1f/0x30
[ 72.400932][ T0] default_idle_call+0x1e/0x40
[ 72.405692][ T0] do_idle+0x1af/0x280
[ 72.409759][ T0] cpu_startup_entry+0x1b/0x20
[ 72.414524][ T0] start_secondary+0x208/0x260
[ 72.419286][ T0] secondary_startup_64+0xa4/0xb0
[ 72.424291][ T0]
[ 72.426612][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 72.432768][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc6+ #0
[ 72.439879][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 72.450199][ T0] ==================================================================
[ 72.458256][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 72.464944][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc6+ #0
[ 72.472744][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 72.482797][ T0] Call Trace:
[ 72.486069][ T0]
[ 72.488934][ T0] dump_stack+0xf5/0x159
[ 72.493193][ T0] panic+0x210/0x640
[ 72.497882][ T0] ? vprintk_func+0x8d/0x140
[ 72.502477][ T0] kcsan_report.cold+0xc/0xe
[ 72.507085][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 72.512461][ T0] __tsan_read8+0x145/0x1f0
[ 72.516998][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 72.523616][ T0] tick_irq_enter+0x139/0x1c0
[ 72.528316][ T0] irq_enter+0x4f/0x60
[ 72.532390][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 72.537857][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 72.543495][ T0] apic_timer_interrupt+0xf/0x20
[ 72.548421][ T0]
[ 72.551381][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 72.557549][ 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
[ 72.577149][ T0] RSP: 0018:ffffc90000cd3e48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 72.585562][ T0] RAX: 0000000000000016 RBX: ffff88812b3850c0 RCX: 0000ffffffffffff
[ 72.593531][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 72.601499][ T0] RBP: ffffc90000cd3e80 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 72.610076][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000001
[ 72.619696][ T0] R13: ffff88812b3850c0 R14: 0000000000000000 R15: 0000000000000000
[ 72.627690][ T0] ? default_idle+0x50/0x230
[ 72.632295][ T0] arch_cpu_idle+0x1f/0x30
[ 72.636717][ T0] default_idle_call+0x1e/0x40
[ 72.641500][ T0] do_idle+0x1af/0x280
[ 72.645573][ T0] ? complete+0x44/0x50
[ 72.649740][ T0] cpu_startup_entry+0x1b/0x20
[ 72.654508][ T0] start_secondary+0x208/0x260
[ 72.659811][ T0] secondary_startup_64+0xa4/0xb0
[ 72.685642][ T0] Kernel Offset: disabled
[ 72.689976][ T0] Rebooting in 86400 seconds..