[ 50.345780][ T27] audit: type=1800 audit(1581029503.745:27): pid=7754 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 50.366221][ T27] audit: type=1800 audit(1581029503.745:28): pid=7754 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.
[ 51.117236][ T27] audit: type=1800 audit(1581029504.585:29): pid=7754 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
[ 51.137598][ T27] audit: type=1800 audit(1581029504.585:30): pid=7754 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 '10.128.0.202' (ECDSA) to the list of known hosts.
2020/02/06 22:51:53 fuzzer started
2020/02/06 22:51:55 dialing manager at 10.128.0.105:36111
2020/02/06 22:51:55 syscalls: 2904
2020/02/06 22:51:55 code coverage: enabled
2020/02/06 22:51:55 comparison tracing: enabled
2020/02/06 22:51:55 extra coverage: enabled
2020/02/06 22:51:55 setuid sandbox: enabled
2020/02/06 22:51:55 namespace sandbox: enabled
2020/02/06 22:51:55 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/06 22:51:55 fault injection: enabled
2020/02/06 22:51:55 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/06 22:51:55 net packet injection: enabled
2020/02/06 22:51:55 net device setup: enabled
2020/02/06 22:51:55 concurrency sanitizer: enabled
2020/02/06 22:51:55 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 63.066477][ C0] ==================================================================
[ 63.074621][ C0] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
[ 63.082316][ C0]
[ 63.084637][ C0] read to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 1:
[ 63.092172][ C0] hrtimer_active+0x84/0x1a0
[ 63.096762][ C0] task_tick_fair+0x4c/0x910
[ 63.101355][ C0] scheduler_tick+0x5f/0xf0
[ 63.105850][ C0] update_process_times+0x5a/0x80
[ 63.110874][ C0] tick_sched_handle+0x75/0x100
[ 63.115721][ C0] tick_sched_timer+0x58/0xe0
[ 63.120414][ C0] __hrtimer_run_queues+0x274/0x5f0
[ 63.125600][ C0] hrtimer_interrupt+0x22a/0x480
[ 63.130535][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 63.135986][ C0] apic_timer_interrupt+0xf/0x20
[ 63.140920][ C0] __tsan_read1+0x6d/0x100
[ 63.145343][ C0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 63.151758][ C0] kallsyms_lookup_name+0x7f/0x120
[ 63.156874][ C0] debugfs_write+0x14b/0x2d0
[ 63.161467][ C0] full_proxy_write+0xbd/0x100
[ 63.166227][ C0] __vfs_write+0x67/0xc0
[ 63.170460][ C0] vfs_write+0x18a/0x390
[ 63.174698][ C0] ksys_write+0xd5/0x1b0
[ 63.178939][ C0] __x64_sys_write+0x4c/0x60
[ 63.183527][ C0] do_syscall_64+0xcc/0x3a0
[ 63.188029][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 63.193901][ C0]
[ 63.196229][ C0] write to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 0:
[ 63.203861][ C0] __hrtimer_run_queues+0x16c/0x5f0
[ 63.209051][ C0] hrtimer_interrupt+0x22a/0x480
[ 63.213977][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 63.219423][ C0] apic_timer_interrupt+0xf/0x20
[ 63.224356][ C0] native_safe_halt+0xe/0x10
[ 63.228943][ C0] arch_cpu_idle+0xa/0x10
[ 63.233264][ C0] default_idle_call+0x1e/0x40
[ 63.238017][ C0] do_idle+0x1c2/0x290
[ 63.242077][ C0] cpu_startup_entry+0x1b/0x20
[ 63.246826][ C0] rest_init+0xec/0xf6
[ 63.250887][ C0] arch_call_rest_init+0x17/0x37
[ 63.255817][ C0] start_kernel+0x838/0x85e
[ 63.260317][ C0] x86_64_start_reservations+0x29/0x2b
[ 63.265770][ C0] x86_64_start_kernel+0x72/0x76
[ 63.270702][ C0] secondary_startup_64+0xa4/0xb0
[ 63.275706][ C0]
[ 63.278019][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 63.284163][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 63.292034][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 63.302076][ C0] ==================================================================
[ 63.310122][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 63.316702][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 63.324583][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 63.334619][ C0] Call Trace:
[ 63.337897][ C0]
[ 63.340746][ C0] dump_stack+0x11d/0x181
[ 63.345074][ C0] panic+0x210/0x640
[ 63.348965][ C0] ? vprintk_func+0x8d/0x140
[ 63.353549][ C0] kcsan_report.cold+0xc/0xd
[ 63.358134][ C0] kcsan_setup_watchpoint+0x3fe/0x460
[ 63.363505][ C0] __tsan_unaligned_write8+0xc7/0x110
[ 63.368874][ C0] __hrtimer_run_queues+0x16c/0x5f0
[ 63.374064][ C0] ? tick_sched_handle+0x100/0x100
[ 63.379175][ C0] hrtimer_interrupt+0x22a/0x480
[ 63.384104][ C0] ? sched_clock+0x13/0x20
[ 63.388519][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 63.393968][ C0] apic_timer_interrupt+0xf/0x20
[ 63.398886][ C0]
[ 63.401818][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 63.407185][ C0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 4c e6 59 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 3c e6 59 00 fb f4 cc 55 48 89 e5 41 55 41 54 53 e8 d2 57 91 fc e8 fd da ab fd 0f
[ 63.426778][ C0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 63.435178][ C0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82546c55
[ 63.443135][ C0] RDX: 0000000000000000 RSI: ffffffff82546c5e RDI: 0000000000000005
[ 63.451092][ C0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2d160
[ 63.459071][ C0] R10: 0000ffff85c03e08 R11: 0000ffff85a2d167 R12: 0000000000000000
[ 63.467035][ C0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 63.475015][ C0] ? debug_smp_processor_id+0x35/0x137
[ 63.480467][ C0] ? debug_smp_processor_id+0x3e/0x137
[ 63.485917][ C0] ? default_idle+0x26/0x180
[ 63.490504][ C0] arch_cpu_idle+0xa/0x10
[ 63.494832][ C0] default_idle_call+0x1e/0x40
[ 63.499595][ C0] do_idle+0x1c2/0x290
[ 63.503656][ C0] ? debug_smp_processor_id+0x43/0x137
[ 63.509119][ C0] cpu_startup_entry+0x1b/0x20
[ 63.513873][ C0] rest_init+0xec/0xf6
[ 63.517940][ C0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 63.525126][ C0] arch_call_rest_init+0x17/0x37
[ 63.530058][ C0] start_kernel+0x838/0x85e
[ 63.534562][ C0] x86_64_start_reservations+0x29/0x2b
[ 63.540010][ C0] x86_64_start_kernel+0x72/0x76
[ 63.544945][ C0] secondary_startup_64+0xa4/0xb0
[ 63.560779][ C0] Kernel Offset: disabled
[ 63.565148][ C0] Rebooting in 86400 seconds..