[ 54.125233][ T26] audit: type=1800 audit(1573333820.664:27): pid=7967 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 54.147414][ T26] audit: type=1800 audit(1573333820.664:28): pid=7967 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.
[ 55.022400][ T26] audit: type=1800 audit(1573333821.634:29): pid=7967 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
[ 55.042743][ T26] audit: type=1800 audit(1573333821.634:30): pid=7967 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 '10.128.0.54' (ECDSA) to the list of known hosts.
2019/11/09 21:10:32 fuzzer started
2019/11/09 21:10:34 dialing manager at 10.128.0.105:41185
2019/11/09 21:10:34 syscalls: 2553
2019/11/09 21:10:34 code coverage: enabled
2019/11/09 21:10:34 comparison tracing: enabled
2019/11/09 21:10:34 extra coverage: extra coverage is not supported by the kernel
2019/11/09 21:10:34 setuid sandbox: enabled
2019/11/09 21:10:34 namespace sandbox: enabled
2019/11/09 21:10:34 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/09 21:10:34 fault injection: enabled
2019/11/09 21:10:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/09 21:10:34 net packet injection: enabled
2019/11/09 21:10:34 net device setup: enabled
2019/11/09 21:10:34 concurrency sanitizer: enabled
2019/11/09 21:10:34 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 68.818270][ T8137] KCSAN: could not find function: 'calc_wb_limits'
[ 69.532085][ T8137] KCSAN: could not find function: 'poll_schedule_timeout'
[ 72.550237][ C0] ==================================================================
[ 72.558501][ C0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 72.567766][ C0]
[ 72.570100][ C0] write to 0xffffffff86043008 of 8 bytes by task 0 on cpu 1:
[ 72.577472][ C0] tick_do_update_jiffies64+0x100/0x250
[ 72.583002][ C0] tick_irq_enter+0x139/0x1c0
[ 72.587670][ C0] irq_enter+0x4f/0x60
[ 72.591723][ C0] smp_apic_timer_interrupt+0x55/0x280
[ 72.597178][ C0] apic_timer_interrupt+0xf/0x20
[ 72.602094][ C0] native_safe_halt+0xe/0x10
[ 72.606667][ C0] arch_cpu_idle+0x1f/0x30
[ 72.611075][ C0] default_idle_call+0x1e/0x40
[ 72.615830][ C0] do_idle+0x1af/0x280
[ 72.619881][ C0] cpu_startup_entry+0x1b/0x20
[ 72.624635][ C0] start_secondary+0x208/0x260
[ 72.629397][ C0] secondary_startup_64+0xa4/0xb0
[ 72.634403][ C0]
[ 72.636715][ C0] read to 0xffffffff86043008 of 8 bytes by interrupt on cpu 0:
[ 72.644250][ C0] tick_do_update_jiffies64+0x2b/0x250
[ 72.649690][ C0] tick_sched_do_timer+0xd4/0xe0
[ 72.654611][ C0] tick_sched_timer+0x43/0xe0
[ 72.659266][ C0] __hrtimer_run_queues+0x274/0x5f0
[ 72.664456][ C0] hrtimer_interrupt+0x22a/0x480
[ 72.669377][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 72.674829][ C0] apic_timer_interrupt+0xf/0x20
[ 72.679829][ C0] kallsyms_expand_symbol.constprop.0+0xa7/0x160
[ 72.686137][ C0] kallsyms_lookup_name+0x7f/0x120
[ 72.691230][ C0] debugfs_write+0x14b/0x2d0
[ 72.695801][ C0] full_proxy_write+0xbd/0x100
[ 72.700555][ C0] __vfs_write+0x67/0xc0
[ 72.704787][ C0] vfs_write+0x18a/0x390
[ 72.709009][ C0] ksys_write+0xd5/0x1b0
[ 72.713232][ C0] __x64_sys_write+0x4c/0x60
[ 72.717805][ C0] do_syscall_64+0xcc/0x370
[ 72.722291][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 72.728166][ C0]
[ 72.730478][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 72.736663][ C0] CPU: 0 PID: 8137 Comm: syz-executor Not tainted 5.4.0-rc6+ #0
[ 72.744357][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 72.754391][ C0] ==================================================================
[ 72.762429][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 72.768999][ C0] CPU: 0 PID: 8137 Comm: syz-executor Not tainted 5.4.0-rc6+ #0
[ 72.776605][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 72.786644][ C0] Call Trace:
[ 72.789915][ C0]
[ 72.792763][ C0] dump_stack+0xf5/0x159
[ 72.797022][ C0] panic+0x210/0x640
[ 72.800911][ C0] ? vprintk_func+0x8d/0x140
[ 72.805491][ C0] kcsan_report.cold+0xc/0xe
[ 72.810070][ C0] kcsan_setup_watchpoint+0x3fe/0x410
[ 72.815432][ C0] __tsan_read8+0x145/0x1f0
[ 72.819961][ C0] tick_do_update_jiffies64+0x2b/0x250
[ 72.825425][ C0] tick_sched_do_timer+0xd4/0xe0
[ 72.830348][ C0] tick_sched_timer+0x43/0xe0
[ 72.835012][ C0] __hrtimer_run_queues+0x274/0x5f0
[ 72.840457][ C0] ? tick_sched_handle+0x100/0x100
[ 72.845554][ C0] hrtimer_interrupt+0x22a/0x480
[ 72.850483][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 72.856031][ C0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 72.861659][ C0] apic_timer_interrupt+0xf/0x20
[ 72.866585][ C0]
[ 72.869517][ C0] RIP: 0010:kallsyms_expand_symbol.constprop.0+0xa7/0x160
[ 72.876731][ C0] Code: 89 55 c8 0f b7 9c 00 68 47 5d 85 48 89 d8 48 81 c3 98 43 5d 85 44 0f b6 a0 98 43 5d 85 44 89 e6 e8 4e 4a 05 00 45 84 e4 74 6f 04 49 05 00 31 ff 44 89 ee e8 7a 4a 05 00 45 85 ed 74 31 e8 f0
[ 72.896334][ C0] RSP: 0018:ffffc90001693c00 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
[ 72.904730][ C0] RAX: 0000000000000000 RBX: ffffffff855d4602 RCX: ffffffff81405421
[ 72.913675][ C0] RDX: 0000000000000074 RSI: 0000000000000000 RDI: 0000000000000001
[ 72.921629][ C0] RBP: ffffc90001693c38 R08: ffff888126eac080 R09: 00000000aaaaaaab
[ 72.929588][ C0] R10: 0000000000000000 R11: 00000000aaaaaaab R12: 0000000000000074
[ 72.937548][ C0] R13: 0000000000000001 R14: ffffc90001693c4c R15: 000000000000007c
[ 72.945527][ C0] ? kallsyms_expand_symbol.constprop.0+0x111/0x160
[ 72.952107][ C0] kallsyms_lookup_name+0x7f/0x120
[ 72.957222][ C0] ? __check_object_size+0x5f/0x346
[ 72.962412][ C0] ? strlen+0x3b/0x60
[ 72.966377][ C0] debugfs_write+0x14b/0x2d0
[ 72.970966][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 72.977205][ C0] ? refcount_inc_not_zero_checked+0xba/0x150
[ 72.983270][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 72.989494][ C0] ? debugfs_file_get+0xae/0x1e0
[ 72.994416][ C0] full_proxy_write+0xbd/0x100
[ 72.999181][ C0] __vfs_write+0x67/0xc0
[ 73.003424][ C0] ? full_proxy_poll+0xf0/0xf0
[ 73.008172][ C0] vfs_write+0x18a/0x390
[ 73.012407][ C0] ksys_write+0xd5/0x1b0
[ 73.016634][ C0] __x64_sys_write+0x4c/0x60
[ 73.021225][ C0] do_syscall_64+0xcc/0x370
[ 73.025771][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 73.031766][ C0] RIP: 0033:0x413cd0
[ 73.035652][ C0] Code: b0 89 c8 f7 d8 eb ed b8 6e 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83 3d 3d 43 66 00 00 75 14 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 c4 1b 00 00 c3 48 83 ec 08 e8 ca fc ff ff
[ 73.055423][ C0] RSP: 002b:00007ffe1f1cd008 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 73.063820][ C0] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000000413cd0
[ 73.071775][ C0] RDX: 0000000000000014 RSI: 0000000001877950 RDI: 0000000000000003
[ 73.079738][ C0] RBP: 0000000001877950 R08: 0000000000000100 R09: 0000000000000014
[ 73.087746][ C0] R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000014
[ 73.095714][ C0] R13: 0000000000000001 R14: 00007ffe1f1cd080 R15: 0000000000000000
[ 73.105149][ C0] Kernel Offset: disabled
[ 73.109479][ C0] Rebooting in 86400 seconds..