[ 53.027398][ T26] audit: type=1800 audit(1580582858.507:27): pid=7917 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 53.058809][ T26] audit: type=1800 audit(1580582858.507:28): pid=7917 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.
[ 53.735269][ T26] audit: type=1800 audit(1580582859.277:29): pid=7917 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
[ 53.755267][ T26] audit: type=1800 audit(1580582859.277:30): pid=7917 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 '10.128.0.94' (ECDSA) to the list of known hosts.
2020/02/01 18:47:46 fuzzer started
2020/02/01 18:47:48 dialing manager at 10.128.0.105:40209
2020/02/01 18:47:48 syscalls: 2904
2020/02/01 18:47:48 code coverage: enabled
2020/02/01 18:47:48 comparison tracing: enabled
2020/02/01 18:47:48 extra coverage: enabled
2020/02/01 18:47:48 setuid sandbox: enabled
2020/02/01 18:47:48 namespace sandbox: enabled
2020/02/01 18:47:48 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/01 18:47:48 fault injection: enabled
2020/02/01 18:47:48 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/01 18:47:48 net packet injection: enabled
2020/02/01 18:47:48 net device setup: enabled
2020/02/01 18:47:48 concurrency sanitizer: enabled
2020/02/01 18:47:48 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 70.756515][ T8086] KCSAN: could not find function: 'poll_schedule_timeout'
[ 70.888860][ C0] ==================================================================
[ 70.897118][ C0] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
[ 70.904858][ C0]
[ 70.907194][ C0] read to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 1:
[ 70.915023][ C0] hrtimer_active+0x84/0x1a0
[ 70.919629][ C0] task_tick_fair+0x4c/0x910
[ 70.924577][ C0] scheduler_tick+0x5f/0xf0
[ 70.929093][ C0] update_process_times+0x5a/0x80
[ 70.934136][ C0] tick_sched_handle+0x75/0x100
[ 70.938997][ C0] tick_sched_timer+0x58/0xe0
[ 70.943770][ C0] __hrtimer_run_queues+0x274/0x5f0
[ 70.948972][ C0] hrtimer_interrupt+0x22a/0x480
[ 70.954440][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 70.959898][ C0] apic_timer_interrupt+0xf/0x20
[ 70.964852][ C0] kcsan_setup_watchpoint+0x1d4/0x460
[ 70.970782][ C0] __tsan_unaligned_write1+0xc3/0x100
[ 70.976168][ C0] kallsyms_expand_symbol.constprop.0+0xe8/0x160
[ 70.982522][ C0] kallsyms_lookup_name+0x7f/0x120
[ 70.987792][ C0] debugfs_write+0x14b/0x2d0
[ 70.992411][ C0] full_proxy_write+0xbd/0x100
[ 70.997182][ C0] __vfs_write+0x67/0xc0
[ 71.001515][ C0] vfs_write+0x18a/0x390
[ 71.005793][ C0] ksys_write+0xd5/0x1b0
[ 71.010195][ C0] __x64_sys_write+0x4c/0x60
[ 71.015448][ C0] do_syscall_64+0xcc/0x3a0
[ 71.019972][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 71.025857][ C0]
[ 71.028196][ C0] write to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 0:
[ 71.035845][ C0] __hrtimer_run_queues+0x1e8/0x5f0
[ 71.041048][ C0] hrtimer_interrupt+0x22a/0x480
[ 71.045985][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 71.051463][ C0] apic_timer_interrupt+0xf/0x20
[ 71.056529][ C0] native_safe_halt+0xe/0x10
[ 71.061130][ C0] arch_cpu_idle+0xa/0x10
[ 71.065463][ C0] default_idle_call+0x1e/0x40
[ 71.070240][ C0] do_idle+0x1c2/0x290
[ 71.074329][ C0] cpu_startup_entry+0x1b/0x20
[ 71.079100][ C0] rest_init+0xec/0xf6
[ 71.083184][ C0] arch_call_rest_init+0x17/0x37
[ 71.088127][ C0] start_kernel+0x838/0x85e
[ 71.092635][ C0] x86_64_start_reservations+0x29/0x2b
[ 71.098112][ C0] x86_64_start_kernel+0x72/0x76
[ 71.103072][ C0] secondary_startup_64+0xa4/0xb0
[ 71.108108][ C0]
[ 71.110430][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 71.116589][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 71.124496][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.134555][ C0] ==================================================================
[ 71.142631][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 71.149328][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 71.157207][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.167395][ C0] Call Trace:
[ 71.170679][ C0]
[ 71.173539][ C0] dump_stack+0x11d/0x181
[ 71.177887][ C0] panic+0x210/0x640
[ 71.181794][ C0] ? vprintk_func+0x8d/0x140
[ 71.186394][ C0] kcsan_report.cold+0xc/0xd
[ 71.191021][ C0] kcsan_setup_watchpoint+0x3fe/0x460
[ 71.196403][ C0] __tsan_unaligned_write8+0xc7/0x110
[ 71.201785][ C0] __hrtimer_run_queues+0x1e8/0x5f0
[ 71.207003][ C0] ? ktime_get_update_offsets_now+0x28f/0x2f0
[ 71.213085][ C0] hrtimer_interrupt+0x22a/0x480
[ 71.218182][ C0] ? sched_clock+0x13/0x20
[ 71.222613][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 71.229035][ C0] apic_timer_interrupt+0xf/0x20
[ 71.234129][ C0]
[ 71.237086][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 71.242581][ 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
[ 71.262305][ C0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 71.270864][ C0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82546c55
[ 71.278843][ C0] RDX: 0000000000000000 RSI: ffffffff82546c5e RDI: 0000000000000005
[ 71.287650][ C0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2d160
[ 71.295745][ C0] R10: 0000ffff85c03e08 R11: 0000ffff85a2d167 R12: 0000000000000000
[ 71.303725][ C0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 71.311714][ C0] ? debug_smp_processor_id+0x35/0x137
[ 71.317206][ C0] ? debug_smp_processor_id+0x3e/0x137
[ 71.322762][ C0] ? default_idle+0x26/0x180
[ 71.327362][ C0] arch_cpu_idle+0xa/0x10
[ 71.331703][ C0] default_idle_call+0x1e/0x40
[ 71.336493][ C0] do_idle+0x1c2/0x290
[ 71.340582][ C0] ? debug_smp_processor_id+0x43/0x137
[ 71.346137][ C0] cpu_startup_entry+0x1b/0x20
[ 71.351052][ C0] rest_init+0xec/0xf6
[ 71.355272][ C0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 71.362482][ C0] arch_call_rest_init+0x17/0x37
[ 71.367426][ C0] start_kernel+0x838/0x85e
[ 71.372096][ C0] x86_64_start_reservations+0x29/0x2b
[ 71.377674][ C0] x86_64_start_kernel+0x72/0x76
[ 71.382635][ C0] secondary_startup_64+0xa4/0xb0
[ 71.389208][ C0] Kernel Offset: disabled
[ 71.393647][ C0] Rebooting in 86400 seconds..