[ 51.858850][ T26] audit: type=1800 audit(1573169472.711:27): 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
[ 51.879344][ T26] audit: type=1800 audit(1573169472.711:28): 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.
[ 52.599560][ T26] audit: type=1800 audit(1573169473.501:29): 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
[ 52.628264][ T26] audit: type=1800 audit(1573169473.501:30): 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 '10.128.1.13' (ECDSA) to the list of known hosts.
2019/11/07 23:31:22 fuzzer started
2019/11/07 23:31:24 dialing manager at 10.128.0.105:38105
2019/11/07 23:31:24 syscalls: 2553
2019/11/07 23:31:24 code coverage: enabled
2019/11/07 23:31:24 comparison tracing: enabled
2019/11/07 23:31:24 extra coverage: extra coverage is not supported by the kernel
2019/11/07 23:31:24 setuid sandbox: enabled
2019/11/07 23:31:24 namespace sandbox: enabled
2019/11/07 23:31:24 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/07 23:31:24 fault injection: enabled
2019/11/07 23:31:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/07 23:31:24 net packet injection: enabled
2019/11/07 23:31:24 net device setup: enabled
2019/11/07 23:31:24 concurrency sanitizer: enabled
2019/11/07 23:31:24 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 64.398357][ T0] ==================================================================
[ 64.406755][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 64.415678][ T0]
[ 64.418012][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 1:
[ 64.425652][ T0] tick_do_update_jiffies64+0x100/0x250
[ 64.431217][ T0] tick_sched_do_timer+0xd4/0xe0
[ 64.436161][ T0] tick_sched_timer+0x43/0xe0
[ 64.440842][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 64.446033][ T0] hrtimer_interrupt+0x22a/0x480
[ 64.450985][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 64.456455][ T0] apic_timer_interrupt+0xf/0x20
[ 64.461398][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 64.466764][ T0] __tsan_read1+0x13f/0x1e0
[ 64.471369][ T0] kallsyms_expand_symbol.constprop.0+0x70/0x160
[ 64.477700][ T0] kallsyms_lookup_name+0x7f/0x120
[ 64.482814][ T0] debugfs_write+0x14b/0x2d0
[ 64.487400][ T0] full_proxy_write+0xbd/0x100
[ 64.492167][ T0] __vfs_write+0x67/0xc0
[ 64.496427][ T0] vfs_write+0x18a/0x390
[ 64.500670][ T0] ksys_write+0xd5/0x1b0
[ 64.504918][ T0] __x64_sys_write+0x4c/0x60
[ 64.509519][ T0] do_syscall_64+0xcc/0x370
[ 64.514026][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 64.519904][ T0]
[ 64.522236][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 0:
[ 64.529514][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 64.534973][ T0] tick_irq_enter+0x139/0x1c0
[ 64.539647][ T0] irq_enter+0x4f/0x60
[ 64.543720][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 64.549185][ T0] apic_timer_interrupt+0xf/0x20
[ 64.554118][ T0] native_safe_halt+0xe/0x10
[ 64.558725][ T0] arch_cpu_idle+0x1f/0x30
[ 64.563146][ T0] default_idle_call+0x1e/0x40
[ 64.567911][ T0] do_idle+0x1af/0x280
[ 64.571983][ T0] cpu_startup_entry+0x1b/0x20
[ 64.576743][ T0] rest_init+0xec/0xf6
[ 64.580814][ T0] arch_call_rest_init+0x17/0x37
[ 64.585750][ T0] start_kernel+0x838/0x85e
[ 64.590250][ T0] x86_64_start_reservations+0x29/0x2b
[ 64.595712][ T0] x86_64_start_kernel+0x72/0x76
[ 64.600655][ T0] secondary_startup_64+0xa4/0xb0
[ 64.605666][ T0]
[ 64.607984][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 64.614154][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 64.621256][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 64.631305][ T0] ==================================================================
[ 64.639365][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 64.645951][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 64.653062][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 64.663105][ T0] Call Trace:
[ 64.666385][ T0]
[ 64.669242][ T0] dump_stack+0xf5/0x159
[ 64.673480][ T0] panic+0x210/0x640
[ 64.677383][ T0] ? vprintk_func+0x8d/0x140
[ 64.681980][ T0] kcsan_report.cold+0xc/0xe
[ 64.686586][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 64.691966][ T0] __tsan_read8+0x145/0x1f0
[ 64.696480][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 64.701950][ T0] tick_irq_enter+0x139/0x1c0
[ 64.706634][ T0] irq_enter+0x4f/0x60
[ 64.710707][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 64.716176][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 64.721810][ T0] apic_timer_interrupt+0xf/0x20
[ 64.726742][ T0]
[ 64.729688][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 64.735070][ 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
[ 64.758317][ T0] RSP: 0018:ffffffff85a03de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 64.766726][ T0] RAX: 0000000000000016 RBX: ffffffff85a2b780 RCX: 0000ffffffffffff
[ 64.774698][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 64.782666][ T0] RBP: ffffffff85a03e18 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 64.790634][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000000
[ 64.798601][ T0] R13: ffffffff85a2b780 R14: 0000000000000000 R15: 0000000000000000
[ 64.806596][ T0] ? default_idle+0x50/0x230
[ 64.811199][ T0] arch_cpu_idle+0x1f/0x30
[ 64.815616][ T0] default_idle_call+0x1e/0x40
[ 64.820381][ T0] do_idle+0x1af/0x280
[ 64.824455][ T0] cpu_startup_entry+0x1b/0x20
[ 64.829225][ T0] rest_init+0xec/0xf6
[ 64.833301][ T0] ? trace_event_define_fields_vector_free_moved+0xce/0xce
[ 64.840496][ T0] arch_call_rest_init+0x17/0x37
[ 64.845444][ T0] start_kernel+0x838/0x85e
[ 64.849964][ T0] x86_64_start_reservations+0x29/0x2b
[ 64.855433][ T0] x86_64_start_kernel+0x72/0x76
[ 64.860376][ T0] secondary_startup_64+0xa4/0xb0
[ 64.895300][ T0] Kernel Offset: disabled
[ 64.899677][ T0] Rebooting in 86400 seconds..