[ 49.272199][ T26] audit: type=1800 audit(1581348491.013:27): pid=7901 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 49.292811][ T26] audit: type=1800 audit(1581348491.013:28): pid=7901 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.
[ 50.127511][ T26] audit: type=1800 audit(1581348491.933:29): pid=7901 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
[ 50.147617][ T26] audit: type=1800 audit(1581348491.933:30): pid=7901 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 '10.128.0.79' (ECDSA) to the list of known hosts.
2020/02/10 15:28:23 fuzzer started
2020/02/10 15:28:25 dialing manager at 10.128.0.105:36345
2020/02/10 15:28:25 syscalls: 2904
2020/02/10 15:28:25 code coverage: enabled
2020/02/10 15:28:25 comparison tracing: enabled
2020/02/10 15:28:25 extra coverage: enabled
2020/02/10 15:28:25 setuid sandbox: enabled
2020/02/10 15:28:25 namespace sandbox: enabled
2020/02/10 15:28:25 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/10 15:28:25 fault injection: enabled
2020/02/10 15:28:25 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/10 15:28:25 net packet injection: enabled
2020/02/10 15:28:25 net device setup: enabled
2020/02/10 15:28:25 concurrency sanitizer: enabled
2020/02/10 15:28:25 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 65.363850][ T8072] KCSAN: could not find function: 'poll_schedule_timeout'
[ 71.002719][ T0] ==================================================================
[ 71.010881][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 71.019806][ T0]
[ 71.022138][ T0] write to 0xffffffff8624d7c8 of 8 bytes by interrupt on cpu 1:
[ 71.029779][ T0] tick_do_update_jiffies64+0x100/0x250
[ 71.035411][ T0] tick_sched_do_timer+0xd4/0xe0
[ 71.040349][ T0] tick_sched_timer+0x43/0xe0
[ 71.045031][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 71.050338][ T0] hrtimer_interrupt+0x22a/0x480
[ 71.055370][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 71.062041][ T0] apic_timer_interrupt+0xf/0x20
[ 71.067109][ T0] kcsan_setup_watchpoint+0x211/0x380
[ 71.072600][ T0] __tsan_read1+0xc2/0x100
[ 71.077028][ T0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 71.083457][ T0] kallsyms_lookup_name+0x7f/0x120
[ 71.088570][ T0] debugfs_write+0x16c/0x320
[ 71.093212][ T0] full_proxy_write+0xbd/0x100
[ 71.098423][ T0] __vfs_write+0x67/0xc0
[ 71.102677][ T0] vfs_write+0x18a/0x390
[ 71.107440][ T0] ksys_write+0xd5/0x1b0
[ 71.111826][ T0] __x64_sys_write+0x4c/0x60
[ 71.116431][ T0] do_syscall_64+0xcc/0x3a0
[ 71.120938][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 71.126929][ T0]
[ 71.129266][ T0] read to 0xffffffff8624d7c8 of 8 bytes by task 0 on cpu 0:
[ 71.136564][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 71.142025][ T0] tick_irq_enter+0x139/0x1c0
[ 71.146897][ T0] irq_enter+0x4f/0x60
[ 71.151068][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 71.156560][ T0] apic_timer_interrupt+0xf/0x20
[ 71.161592][ T0] native_safe_halt+0xe/0x10
[ 71.166303][ T0] arch_cpu_idle+0xa/0x10
[ 71.171509][ T0] default_idle_call+0x1e/0x40
[ 71.176282][ T0] do_idle+0x1c2/0x290
[ 71.180361][ T0] cpu_startup_entry+0x1b/0x20
[ 71.185130][ T0] rest_init+0xec/0xf6
[ 71.189218][ T0] arch_call_rest_init+0x17/0x37
[ 71.195239][ T0] start_kernel+0x838/0x85e
[ 71.201325][ T0] x86_64_start_reservations+0x29/0x2b
[ 71.206799][ T0] x86_64_start_kernel+0x72/0x76
[ 71.211837][ T0] secondary_startup_64+0xa4/0xb0
[ 71.216879][ T0]
[ 71.219201][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 71.225365][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 71.233332][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.243502][ T0] ==================================================================
[ 71.251703][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 71.258318][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 71.266201][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.276263][ T0] Call Trace:
[ 71.280412][ T0]
[ 71.283332][ T0] dump_stack+0x11d/0x181
[ 71.287689][ T0] panic+0x210/0x640
[ 71.291585][ T0] ? vprintk_func+0x8d/0x140
[ 71.296200][ T0] kcsan_report.cold+0xc/0x15
[ 71.300903][ T0] kcsan_setup_watchpoint+0x2e2/0x380
[ 71.306431][ T0] __tsan_read8+0xc6/0x100
[ 71.310898][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 71.316385][ T0] tick_irq_enter+0x139/0x1c0
[ 71.321065][ T0] irq_enter+0x4f/0x60
[ 71.325141][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 71.330619][ T0] apic_timer_interrupt+0xf/0x20
[ 71.335649][ T0]
[ 71.338605][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 71.343985][ T0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 1c 71 59 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 0c 71 59 00 fb f4 cc 55 48 89 e5 41 55 41 54 53 e8 a2 e9 90 fc e8 ed 84 ab fd 0f
[ 71.363783][ T0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 71.372215][ T0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82548b75
[ 71.380300][ T0] RDX: 0000000000000000 RSI: ffffffff82548b7e RDI: 0000000000000005
[ 71.388459][ T0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2d160
[ 71.396441][ T0] R10: 0000ffff85c03e08 R11: 0000ffff85a2d167 R12: 0000000000000000
[ 71.404580][ T0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 71.412689][ T0] ? debug_smp_processor_id+0x35/0x137
[ 71.418155][ T0] ? debug_smp_processor_id+0x3e/0x137
[ 71.423613][ T0] ? default_idle+0x26/0x180
[ 71.428230][ T0] arch_cpu_idle+0xa/0x10
[ 71.432568][ T0] default_idle_call+0x1e/0x40
[ 71.437346][ T0] do_idle+0x1c2/0x290
[ 71.441445][ T0] ? debug_smp_processor_id+0x43/0x137
[ 71.446937][ T0] cpu_startup_entry+0x1b/0x20
[ 71.451705][ T0] rest_init+0xec/0xf6
[ 71.455794][ T0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 71.463216][ T0] arch_call_rest_init+0x17/0x37
[ 71.468324][ T0] start_kernel+0x838/0x85e
[ 71.472842][ T0] x86_64_start_reservations+0x29/0x2b
[ 71.478326][ T0] x86_64_start_kernel+0x72/0x76
[ 71.483371][ T0] secondary_startup_64+0xa4/0xb0
[ 71.743913][ T0] Kernel Offset: disabled
[ 71.748546][ T0] Rebooting in 86400 seconds..