[ 63.245064][ T27] audit: type=1800 audit(1580301358.365:27): pid=7896 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 63.266194][ T27] audit: type=1800 audit(1580301358.365:28): pid=7896 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.
[ 63.741313][ T27] audit: type=1800 audit(1580301358.925:29): pid=7896 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
[ 63.761803][ T27] audit: type=1800 audit(1580301358.925:30): pid=7896 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 '10.128.10.13' (ECDSA) to the list of known hosts.
2020/01/29 12:36:09 fuzzer started
2020/01/29 12:36:10 dialing manager at 10.128.0.105:34991
2020/01/29 12:36:11 syscalls: 2900
2020/01/29 12:36:11 code coverage: enabled
2020/01/29 12:36:11 comparison tracing: enabled
2020/01/29 12:36:11 extra coverage: enabled
2020/01/29 12:36:11 setuid sandbox: enabled
2020/01/29 12:36:11 namespace sandbox: enabled
2020/01/29 12:36:11 Android sandbox: /sys/fs/selinux/policy does not exist
2020/01/29 12:36:11 fault injection: enabled
2020/01/29 12:36:11 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/01/29 12:36:11 net packet injection: enabled
2020/01/29 12:36:11 net device setup: enabled
2020/01/29 12:36:11 concurrency sanitizer: enabled
2020/01/29 12:36:11 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 82.696709][ T8063] KCSAN: could not find function: 'poll_schedule_timeout'
[ 82.919397][ C0] ==================================================================
[ 82.927546][ C0] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
[ 82.935381][ C0]
[ 82.937727][ C0] read to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 1:
[ 82.945290][ C0] hrtimer_active+0x84/0x1a0
[ 82.949938][ C0] task_tick_fair+0x4c/0x910
[ 82.954539][ C0] scheduler_tick+0x5f/0xf0
[ 82.959230][ C0] update_process_times+0x5a/0x80
[ 82.964253][ C0] tick_sched_handle+0x75/0x100
[ 82.969112][ C0] tick_sched_timer+0x58/0xe0
[ 82.973807][ C0] __hrtimer_run_queues+0x274/0x5f0
[ 82.979017][ C0] hrtimer_interrupt+0x22a/0x480
[ 82.984251][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 82.989712][ C0] apic_timer_interrupt+0xf/0x20
[ 82.994665][ C0] write_comp_data+0x9/0x70
[ 82.999196][ C0] kallsyms_lookup_name+0x9c/0x120
[ 83.004316][ C0] debugfs_write+0x14b/0x2d0
[ 83.009031][ C0] full_proxy_write+0xbd/0x100
[ 83.013818][ C0] __vfs_write+0x67/0xc0
[ 83.018073][ C0] vfs_write+0x18a/0x390
[ 83.022328][ C0] ksys_write+0xd5/0x1b0
[ 83.026580][ C0] __x64_sys_write+0x4c/0x60
[ 83.031223][ C0] do_syscall_64+0xcc/0x3a0
[ 83.035733][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 83.041617][ C0]
[ 83.043955][ C0] write to 0xffff88812c01fbd8 of 8 bytes by interrupt on cpu 0:
[ 83.051596][ C0] __hrtimer_run_queues+0x1e8/0x5f0
[ 83.056804][ C0] hrtimer_interrupt+0x22a/0x480
[ 83.061747][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 83.067330][ C0] apic_timer_interrupt+0xf/0x20
[ 83.072276][ C0] native_safe_halt+0xe/0x10
[ 83.076867][ C0] arch_cpu_idle+0xa/0x10
[ 83.081193][ C0] default_idle_call+0x1e/0x40
[ 83.085968][ C0] do_idle+0x1c2/0x290
[ 83.090122][ C0] cpu_startup_entry+0x1b/0x20
[ 83.094887][ C0] rest_init+0xec/0xf6
[ 83.099831][ C0] arch_call_rest_init+0x17/0x37
[ 83.104767][ C0] start_kernel+0x838/0x85e
[ 83.109282][ C0] x86_64_start_reservations+0x29/0x2b
[ 83.114865][ C0] x86_64_start_kernel+0x72/0x76
[ 83.119808][ C0] secondary_startup_64+0xa4/0xb0
[ 83.124842][ C0]
[ 83.127175][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 83.133627][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 83.141609][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 83.151800][ C0] ==================================================================
[ 83.159867][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 83.166481][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 83.174373][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 83.184431][ C0] Call Trace:
[ 83.187703][ C0]
[ 83.190648][ C0] dump_stack+0x11d/0x181
[ 83.194992][ C0] panic+0x210/0x640
[ 83.198929][ C0] ? vprintk_func+0x8d/0x140
[ 83.203532][ C0] kcsan_report.cold+0xc/0xd
[ 83.208134][ C0] kcsan_setup_watchpoint+0x3fe/0x460
[ 83.213514][ C0] __tsan_unaligned_write8+0xc7/0x110
[ 83.218902][ C0] __hrtimer_run_queues+0x1e8/0x5f0
[ 83.224535][ C0] ? ktime_get_update_offsets_now+0x28f/0x2f0
[ 83.230708][ C0] hrtimer_interrupt+0x22a/0x480
[ 83.235781][ C0] ? sched_clock+0x13/0x20
[ 83.240227][ C0] smp_apic_timer_interrupt+0xdc/0x280
[ 83.245706][ C0] apic_timer_interrupt+0xf/0x20
[ 83.250646][ C0]
[ 83.253613][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 83.259037][ 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
[ 83.278806][ C0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 83.287320][ C0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82546c55
[ 83.295310][ C0] RDX: 0000000000000000 RSI: ffffffff82546c5e RDI: 0000000000000005
[ 83.303297][ C0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2d160
[ 83.311278][ C0] R10: 0000ffff85c03e08 R11: 0000ffff85a2d167 R12: 0000000000000000
[ 83.319264][ C0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 83.327264][ C0] ? debug_smp_processor_id+0x35/0x137
[ 83.332732][ C0] ? debug_smp_processor_id+0x3e/0x137
[ 83.338219][ C0] ? default_idle+0x26/0x180
[ 83.342824][ C0] arch_cpu_idle+0xa/0x10
[ 83.347295][ C0] default_idle_call+0x1e/0x40
[ 83.352182][ C0] do_idle+0x1c2/0x290
[ 83.356248][ C0] ? do_idle+0xe7/0x290
[ 83.360411][ C0] cpu_startup_entry+0x1b/0x20
[ 83.365186][ C0] rest_init+0xec/0xf6
[ 83.369277][ C0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 83.376489][ C0] arch_call_rest_init+0x17/0x37
[ 83.381427][ C0] start_kernel+0x838/0x85e
[ 83.385943][ C0] x86_64_start_reservations+0x29/0x2b
[ 83.391426][ C0] x86_64_start_kernel+0x72/0x76
[ 83.396374][ C0] secondary_startup_64+0xa4/0xb0
[ 83.440268][ C0] Kernel Offset: disabled
[ 83.444616][ C0] Rebooting in 86400 seconds..