[ 57.733510][ T26] audit: type=1800 audit(1573229927.149:27): pid=7856 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
[ 57.755810][ T26] audit: type=1800 audit(1573229927.159:28): pid=7856 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.
[ 58.608508][ T26] audit: type=1800 audit(1573229928.109:29): pid=7856 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
[ 58.628678][ T26] audit: type=1800 audit(1573229928.119:30): pid=7856 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 '10.128.0.215' (ECDSA) to the list of known hosts.
2019/11/08 16:18:57 fuzzer started
2019/11/08 16:18:59 dialing manager at 10.128.0.105:41185
2019/11/08 16:19:00 syscalls: 2553
2019/11/08 16:19:00 code coverage: enabled
2019/11/08 16:19:00 comparison tracing: enabled
2019/11/08 16:19:00 extra coverage: extra coverage is not supported by the kernel
2019/11/08 16:19:00 setuid sandbox: enabled
2019/11/08 16:19:00 namespace sandbox: enabled
2019/11/08 16:19:00 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/08 16:19:00 fault injection: enabled
2019/11/08 16:19:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/08 16:19:00 net packet injection: enabled
2019/11/08 16:19:00 net device setup: enabled
2019/11/08 16:19:00 concurrency sanitizer: enabled
2019/11/08 16:19:00 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 71.699117][ T0] ==================================================================
[ 71.707282][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 71.716221][ T0]
[ 71.718556][ T0] write to 0xffffffff86043008 of 8 bytes by interrupt on cpu 0:
[ 71.726187][ T0] tick_do_update_jiffies64+0x100/0x250
[ 71.731748][ T0] tick_sched_do_timer+0xd4/0xe0
[ 71.736682][ T0] tick_sched_timer+0x43/0xe0
[ 71.741362][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 71.746553][ T0] hrtimer_interrupt+0x22a/0x480
[ 71.751513][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 71.756989][ T0] apic_timer_interrupt+0xf/0x20
[ 71.761933][ T0] kcsan_setup_watchpoint+0x205/0x410
[ 71.767305][ T0] __tsan_read1+0x13f/0x1e0
[ 71.771826][ T0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 71.778243][ T0] kallsyms_lookup_name+0x7f/0x120
[ 71.785525][ T0] debugfs_write+0x14b/0x2d0
[ 71.790111][ T0] full_proxy_write+0xbd/0x100
[ 71.794886][ T0] __vfs_write+0x67/0xc0
[ 71.799131][ T0] vfs_write+0x18a/0x390
[ 71.803389][ T0] ksys_write+0xd5/0x1b0
[ 71.807631][ T0] __x64_sys_write+0x4c/0x60
[ 71.812238][ T0] do_syscall_64+0xcc/0x370
[ 71.816754][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 71.822632][ T0]
[ 71.824962][ T0] read to 0xffffffff86043008 of 8 bytes by task 0 on cpu 1:
[ 71.832253][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 71.837714][ T0] tick_irq_enter+0x139/0x1c0
[ 71.842396][ T0] irq_enter+0x4f/0x60
[ 71.846470][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 71.851931][ T0] apic_timer_interrupt+0xf/0x20
[ 71.856870][ T0] native_safe_halt+0xe/0x10
[ 71.861461][ T0] arch_cpu_idle+0x1f/0x30
[ 71.865893][ T0] default_idle_call+0x1e/0x40
[ 71.870663][ T0] do_idle+0x1af/0x280
[ 71.874744][ T0] cpu_startup_entry+0x1b/0x20
[ 71.879510][ T0] start_secondary+0x208/0x260
[ 71.884273][ T0] secondary_startup_64+0xa4/0xb0
[ 71.889376][ T0]
[ 71.891696][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 71.897849][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc6+ #0
[ 71.904944][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.914993][ T0] ==================================================================
[ 71.923058][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 71.929661][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc6+ #0
[ 71.936773][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 71.946839][ T0] Call Trace:
[ 71.950141][ T0]
[ 71.953016][ T0] dump_stack+0xf5/0x159
[ 71.957271][ T0] panic+0x210/0x640
[ 71.961183][ T0] ? vprintk_func+0x8d/0x140
[ 71.965777][ T0] kcsan_report.cold+0xc/0xe
[ 71.970386][ T0] kcsan_setup_watchpoint+0x3fe/0x410
[ 71.975767][ T0] __tsan_read8+0x145/0x1f0
[ 71.980280][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 71.985758][ T0] tick_irq_enter+0x139/0x1c0
[ 71.990443][ T0] irq_enter+0x4f/0x60
[ 71.994529][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 71.999998][ T0] ? smp_reschedule_interrupt+0x71/0x1d0
[ 72.005639][ T0] apic_timer_interrupt+0xf/0x20
[ 72.010565][ T0]
[ 72.013508][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 72.018908][ 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
[ 72.039416][ T0] RSP: 0018:ffffc90000cd3e48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 72.047839][ T0] RAX: 0000000000000016 RBX: ffff88812b3850c0 RCX: 0000ffffffffffff
[ 72.055820][ T0] RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffffffff85a56378
[ 72.063796][ T0] RBP: ffffc90000cd3e80 R08: 0000ffff85a56378 R09: 00000000aaaaaaab
[ 72.071781][ T0] R10: 0000ffff85a5637f R11: 0000000000000000 R12: 0000000000000001
[ 72.079762][ T0] R13: ffff88812b3850c0 R14: 0000000000000000 R15: 0000000000000000
[ 72.087772][ T0] ? default_idle+0x50/0x230
[ 72.092373][ T0] arch_cpu_idle+0x1f/0x30
[ 72.096787][ T0] default_idle_call+0x1e/0x40
[ 72.101582][ T0] do_idle+0x1af/0x280
[ 72.105657][ T0] ? complete+0x44/0x50
[ 72.109818][ T0] cpu_startup_entry+0x1b/0x20
[ 72.114584][ T0] start_secondary+0x208/0x260
[ 72.119361][ T0] secondary_startup_64+0xa4/0xb0
[ 72.148422][ T0] Kernel Offset: disabled
[ 72.152777][ T0] Rebooting in 86400 seconds..