[....] Starting enhanced syslogd: rsyslogd[   14.411665] audit: type=1400 audit(1572172325.196:4): avc:  denied  { syslog } for  pid=1925 comm="rsyslogd" capability=34  scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
Starting mcstransd: 
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts.
2019/10/27 10:32:17 fuzzer started
2019/10/27 10:32:19 dialing manager at 10.128.0.26:45583
2019/10/27 10:32:19 syscalls: 1346
2019/10/27 10:32:19 code coverage: enabled
2019/10/27 10:32:19 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled
2019/10/27 10:32:19 extra coverage: extra coverage is not supported by the kernel
2019/10/27 10:32:19 setuid sandbox: enabled
2019/10/27 10:32:19 namespace sandbox: enabled
2019/10/27 10:32:19 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/27 10:32:19 fault injection: kernel does not have systematic fault injection support
2019/10/27 10:32:19 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/27 10:32:19 net packet injection: enabled
2019/10/27 10:32:19 net device setup: enabled
2019/10/27 10:32:19 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist
syzkaller login: [   65.426302] ------------[ cut here ]------------
[   65.431351] kernel BUG at mm/vmstat.c:1425!
[   65.435697] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   65.441749] Modules linked in:
[   65.445087] CPU: 0 PID: 63 Comm: kworker/0:1 Not tainted 4.4.174+ #4
[   65.451771] Workqueue: vmstat vmstat_update
[   65.456353] task: ffff8801d8c35f00 task.stack: ffff8801d8d68000
[   65.462629] RIP: 0010:[<ffffffff8140c9f9>]  [<ffffffff8140c9f9>] vmstat_update+0x99/0xb0
[   65.471326] RSP: 0018:ffff8801d8d6fbc0  EFLAGS: 00010287
[   65.476859] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   65.484384] RDX: 0000000000000000 RSI: ffffffff81b0abec RDI: ffff8801d8c362f8
[   65.491936] RBP: ffff8801d8d6fbe0 R08: ffffffff82836948 R09: ffff8801d8c36810
[   65.499358] R10: ffffffff83a189d0 R11: 0000000000000000 R12: ffff8801db61b380
[   65.506622] R13: ffff8801d8d6fc78 R14: ffff8801d8c19500 R15: ffff8801db61df00
[   65.514042] FS:  0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
[   65.522451] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.528431] CR2: 000000c427972008 CR3: 00000000b912f000 CR4: 00000000001606b0
[   65.535707] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   65.542974] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   65.550237] Stack:
[   65.552379]  0000000000000000 ffff8801db61b380 ffff8801d8d6fc78 ffff8801d8c19500
[   65.560736]  ffff8801d8d6fd00 ffffffff81122c25 ffffffff81122b42 ffffffff81159431
[   65.568895]  ffff8801d8c19548 ffff8800003f9b80 ffff880100000000 ffff8801d8c19520
[   65.577049] Call Trace:
[   65.579636]  [<ffffffff81122c25>] process_one_work+0x825/0x1720
[   65.585687]  [<ffffffff81122b42>] ? process_one_work+0x742/0x1720
[   65.592168]  [<ffffffff81159431>] ? finish_task_switch+0x1e1/0x660
[   65.598481]  [<ffffffff81122400>] ? cancel_delayed_work_sync+0x20/0x20
[   65.605230]  [<ffffffff81124004>] worker_thread+0x4e4/0xf50
[   65.611016]  [<ffffffff82708233>] ? __schedule+0x7e3/0x1ee0
[   65.616864]  [<ffffffff81123b20>] ? process_one_work+0x1720/0x1720
[   65.623177]  [<ffffffff811342c3>] kthread+0x273/0x310
[   65.628360]  [<ffffffff81134050>] ? kthread_create_on_node+0x4c0/0x4c0
[   65.635275]  [<ffffffff82718079>] ? _raw_spin_unlock_irq+0x39/0x60
[   65.641755]  [<ffffffff81159431>] ? finish_task_switch+0x1e1/0x660
[   65.648143]  [<ffffffff81159403>] ? finish_task_switch+0x1b3/0x660
[   65.654460]  [<ffffffff827081ff>] ? __schedule+0x7af/0x1ee0
[   65.660312]  [<ffffffff827081f3>] ? __schedule+0x7a3/0x1ee0
[   65.666016]  [<ffffffff827081ff>] ? __schedule+0x7af/0x1ee0
[   65.672053]  [<ffffffff81134050>] ? kthread_create_on_node+0x4c0/0x4c0
[   65.678933]  [<ffffffff82718fc5>] ret_from_fork+0x55/0x80
[   65.684610]  [<ffffffff81134050>] ? kthread_create_on_node+0x4c0/0x4c0
[   65.691355] Code: 89 f6 e8 4b 95 d1 ff 5b 41 5c 41 5d 41 5e 5d c3 e8 cd e3 6f 00 89 c0 f0 48 0f ab 05 92 f4 c1 02 72 09 5b 41 5c 41 5d 41 5e 5d c3 <0f> 0b e8 c0 84 07 00 eb af 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 
[   65.721764] RIP  [<ffffffff8140c9f9>] vmstat_update+0x99/0xb0
[   65.728158]  RSP <ffff8801d8d6fbc0>
[   65.733605] ---[ end trace 4050a47a662e0e0c ]---
[   65.738510] Kernel panic - not syncing: Fatal exception
[   65.745056] Kernel Offset: disabled
[   65.748788] Rebooting in 86400 seconds..