[ 52.131621][ T26] audit: type=1800 audit(1573462370.463:30): pid=7905 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 '10.128.15.204' (ECDSA) to the list of known hosts.
2019/11/11 08:53:00 fuzzer started
2019/11/11 08:53:03 dialing manager at 10.128.0.105:33901
2019/11/11 08:53:03 syscalls: 2553
2019/11/11 08:53:03 code coverage: enabled
2019/11/11 08:53:03 comparison tracing: enabled
2019/11/11 08:53:03 extra coverage: extra coverage is not supported by the kernel
2019/11/11 08:53:03 setuid sandbox: enabled
2019/11/11 08:53:03 namespace sandbox: enabled
2019/11/11 08:53:03 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/11 08:53:03 fault injection: enabled
2019/11/11 08:53:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/11 08:53:03 net packet injection: enabled
2019/11/11 08:53:03 net device setup: enabled
2019/11/11 08:53:03 concurrency sanitizer: enabled
2019/11/11 08:53:03 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 69.043695][ T0] ==================================================================
[ 69.051861][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 69.060794][ T0]
[ 69.063122][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 1:
[ 69.070757][ T0] tick_do_update_jiffies64+0x100/0x250
[ 69.076396][ T0] tick_sched_do_timer+0xd4/0xe0
[ 69.081468][ T0] tick_sched_timer+0x43/0xe0
[ 69.086149][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 69.091355][ T0] hrtimer_interrupt+0x22a/0x480
[ 69.096303][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 69.101770][ T0] apic_timer_interrupt+0xf/0x20
[ 69.106709][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 69.112092][ T0] __tsan_unaligned_write1+0x13d/0x1e0
[ 69.117552][ T0] kallsyms_expand_symbol.constprop.0+0xe8/0x160
[ 69.123895][ T0] kallsyms_lookup_name+0x7f/0x120
[ 69.129000][ T0] debugfs_write+0x14b/0x2d0
[ 69.133591][ T0] full_proxy_write+0xbd/0x100
[ 69.138356][ T0] __vfs_write+0x67/0xc0
[ 69.142598][ T0] vfs_write+0x18a/0x390
[ 69.146860][ T0] ksys_write+0xd5/0x1b0
[ 69.151113][ T0] __x64_sys_write+0x4c/0x60
[ 69.155705][ T0] do_syscall_64+0xcc/0x370
[ 69.160213][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 69.166103][ T0]
[ 69.168435][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 0:
[ 69.175716][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 69.181870][ T0] tick_irq_enter+0x139/0x1c0
[ 69.186549][ T0] irq_enter+0x4f/0x60
[ 69.190629][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 69.196088][ T0] apic_timer_interrupt+0xf/0x20
[ 69.201024][ T0] native_safe_halt+0xe/0x10
[ 69.205618][ T0] arch_cpu_idle+0x1f/0x30
[ 69.210034][ T0] default_idle_call+0x1e/0x40
[ 69.214799][ T0] do_idle+0x1af/0x280
[ 69.218870][ T0] cpu_startup_entry+0x1b/0x20
[ 69.223637][ T0] rest_init+0xec/0xf6
[ 69.227701][ T0] arch_call_rest_init+0x17/0x37
[ 69.232639][ T0] start_kernel+0x838/0x85e
[ 69.237140][ T0] x86_64_start_reservations+0x29/0x2b
[ 69.242599][ T0] x86_64_start_kernel+0x72/0x76
[ 69.247538][ T0] secondary_startup_64+0xa4/0xb0
[ 69.252545][ T0]
[ 69.254869][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 69.261022][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 69.268121][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 69.278166][ T0] ==================================================================
[ 69.286212][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 69.292795][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
[ 69.299887][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 69.309934][ T0] Call Trace:
[ 69.313214][ T0]
[ 69.316080][ T0] dump_stack+0xf5/0x159
[ 69.320323][ T0] panic+0x210/0x640
[ 69.324224][ T0] ? vprintk_func+0x8d/0x140
[ 69.328821][ T0] kcsan_report.cold+0xc/0xe
[ 69.333418][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 69.338786][ T0] __tsan_read8+0x145/0x1f0
[ 69.343289][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 69.348746][ T0] tick_irq_enter+0x139/0x1c0
[ 69.353428][ T0] irq_enter+0x4f/0x60
[ 69.357500][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 69.362963][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 69.368599][ T0] apic_timer_interrupt+0xf/0x20
[ 69.373527][ T0]
[ 69.376467][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 69.381850][ 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
[ 69.401447][ T0] RSP: 0018:ffffffff85a03de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 69.409866][ T0] RAX: 0000000000000016 RBX: ffffffff85a2b780 RCX: 0000ffffffffffff
[ 69.417833][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 69.425803][ T0] RBP: ffffffff85a03e18 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 69.433768][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000000
[ 69.442512][ T0] R13: ffffffff85a2b780 R14: 0000000000000000 R15: 0000000000000000
[ 69.450498][ T0] ? default_idle+0x50/0x230
[ 69.455089][ T0] arch_cpu_idle+0x1f/0x30
[ 69.459501][ T0] default_idle_call+0x1e/0x40
[ 69.464271][ T0] do_idle+0x1af/0x280
[ 69.468353][ T0] cpu_startup_entry+0x1b/0x20
[ 69.473117][ T0] rest_init+0xec/0xf6
[ 69.477192][ T0] ? trace_event_define_fields_vector_free_moved+0xce/0xce
[ 69.484396][ T0] arch_call_rest_init+0x17/0x37
[ 69.489339][ T0] start_kernel+0x838/0x85e
[ 69.493862][ T0] x86_64_start_reservations+0x29/0x2b
[ 69.499330][ T0] x86_64_start_kernel+0x72/0x76
[ 69.504273][ T0] secondary_startup_64+0xa4/0xb0
[ 69.515868][ T0] Kernel Offset: disabled
[ 69.520195][ T0] Rebooting in 86400 seconds..