[ 54.642108][ T27] audit: type=1800 audit(1580964571.751:27): pid=7940 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 54.669374][ T27] audit: type=1800 audit(1580964571.761:28): pid=7940 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.
[ 55.802513][ T27] audit: type=1800 audit(1580964573.001:29): pid=7940 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
[ 55.822803][ T27] audit: type=1800 audit(1580964573.001:30): pid=7940 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 '10.128.1.19' (ECDSA) to the list of known hosts.
2020/02/06 04:49:42 fuzzer started
2020/02/06 04:49:44 dialing manager at 10.128.0.105:44419
2020/02/06 04:49:45 syscalls: 2904
2020/02/06 04:49:45 code coverage: enabled
2020/02/06 04:49:45 comparison tracing: enabled
2020/02/06 04:49:45 extra coverage: enabled
2020/02/06 04:49:45 setuid sandbox: enabled
2020/02/06 04:49:45 namespace sandbox: enabled
2020/02/06 04:49:45 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/06 04:49:45 fault injection: enabled
2020/02/06 04:49:45 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/06 04:49:45 net packet injection: enabled
2020/02/06 04:49:45 net device setup: enabled
2020/02/06 04:49:45 concurrency sanitizer: enabled
2020/02/06 04:49:45 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 70.342487][ T0] ==================================================================
[ 70.350651][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 70.359591][ T0]
[ 70.361949][ T0] write to 0xffffffff8624c7c8 of 8 bytes by interrupt on cpu 0:
[ 70.369702][ T0] tick_do_update_jiffies64+0x100/0x250
[ 70.375293][ T0] tick_sched_do_timer+0xd4/0xe0
[ 70.380246][ T0] tick_sched_timer+0x43/0xe0
[ 70.384943][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 70.390283][ T0] hrtimer_interrupt+0x22a/0x480
[ 70.395240][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 70.400714][ T0] apic_timer_interrupt+0xf/0x20
[ 70.405678][ T0] kcsan_setup_watchpoint+0x1d4/0x460
[ 70.411080][ T0] __tsan_read1+0xc2/0x100
[ 70.415521][ T0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 70.421971][ T0] kallsyms_lookup_name+0x7f/0x120
[ 70.427101][ T0] debugfs_write+0x14b/0x2d0
[ 70.431712][ T0] full_proxy_write+0xbd/0x100
[ 70.436498][ T0] __vfs_write+0x67/0xc0
[ 70.440771][ T0] vfs_write+0x18a/0x390
[ 70.445029][ T0] ksys_write+0xd5/0x1b0
[ 70.449407][ T0] __x64_sys_write+0x4c/0x60
[ 70.454017][ T0] do_syscall_64+0xcc/0x3a0
[ 70.458545][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 70.464434][ T0]
[ 70.466779][ T0] read to 0xffffffff8624c7c8 of 8 bytes by task 0 on cpu 1:
[ 70.474115][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 70.479592][ T0] tick_irq_enter+0x139/0x1c0
[ 70.484293][ T0] irq_enter+0x4f/0x60
[ 70.488383][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 70.493855][ T0] apic_timer_interrupt+0xf/0x20
[ 70.498808][ T0] native_safe_halt+0xe/0x10
[ 70.503420][ T0] arch_cpu_idle+0xa/0x10
[ 70.507778][ T0] default_idle_call+0x1e/0x40
[ 70.512549][ T0] do_idle+0x1c2/0x290
[ 70.516750][ T0] cpu_startup_entry+0x1b/0x20
[ 70.521531][ T0] start_secondary+0x168/0x1b0
[ 70.526339][ T0] secondary_startup_64+0xa4/0xb0
[ 70.531358][ T0]
[ 70.533685][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 70.539849][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-rc1-syzkaller #0
[ 70.547743][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 70.557809][ T0] ==================================================================
[ 70.565888][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 70.572485][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-rc1-syzkaller #0
[ 70.580481][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 70.590549][ T0] Call Trace:
[ 70.593835][ T0]
[ 70.596710][ T0] dump_stack+0x11d/0x181
[ 70.601073][ T0] panic+0x210/0x640
[ 70.604987][ T0] ? vprintk_func+0x8d/0x140
[ 70.609603][ T0] kcsan_report.cold+0xc/0xd
[ 70.614221][ T0] kcsan_setup_watchpoint+0x3fe/0x460
[ 70.619628][ T0] __tsan_read8+0xc6/0x100
[ 70.624067][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 70.629577][ T0] tick_irq_enter+0x139/0x1c0
[ 70.634289][ T0] irq_enter+0x4f/0x60
[ 70.638386][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 70.643866][ T0] apic_timer_interrupt+0xf/0x20
[ 70.648834][ T0]
[ 70.651801][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 70.657312][ T0] 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
[ 70.676931][ T0] RSP: 0018:ffffc90000cd3e70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 70.685450][ T0] RAX: 0000000000000001 RBX: ffff88812b785040 RCX: ffffffff82546c55
[ 70.693448][ T0] RDX: 0000000000000000 RSI: ffffffff82546c5e RDI: 0000000000000005
[ 70.701435][ T0] RBP: ffffc90000cd3e90 R08: ffff88812b785040 R09: 0000ffff85a2d168
[ 70.709430][ T0] R10: 0000c90000cd3e80 R11: 0000ffff85a2d16f R12: 0000000000000001
[ 70.717547][ T0] R13: ffff88812b785040 R14: 0000000000000000 R15: 0000000000000000
[ 70.725656][ T0] ? debug_smp_processor_id+0x35/0x137
[ 70.731150][ T0] ? debug_smp_processor_id+0x3e/0x137
[ 70.736644][ T0] ? default_idle+0x26/0x180
[ 70.741252][ T0] arch_cpu_idle+0xa/0x10
[ 70.745592][ T0] default_idle_call+0x1e/0x40
[ 70.750380][ T0] do_idle+0x1c2/0x290
[ 70.754475][ T0] ? complete+0x44/0x50
[ 70.758636][ T0] cpu_startup_entry+0x1b/0x20
[ 70.763412][ T0] start_secondary+0x168/0x1b0
[ 70.768182][ T0] secondary_startup_64+0xa4/0xb0
[ 70.774809][ T0] Kernel Offset: disabled
[ 70.779225][ T0] Rebooting in 86400 seconds..