[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[   12.945437] random: nonblocking pool is initialized
[....] 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

syzkaller login: [   43.624034] ------------[ cut here ]------------
[   43.629046] kernel BUG at mm/vmstat.c:1420!
[   43.633468] invalid opcode: 0000 [#1] PREEMPT SMP 
[   43.638732] Modules linked in:
[   43.642020] CPU: 1 PID: 16 Comm: kworker/1:0 Not tainted 4.4.185 #14
[   43.648537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   43.658088] Workqueue: vmstat vmstat_update
[   43.662663] task: ffff88012b7a4440 ti: ffff88012b7a8000 task.ti: ffff88012b7a8000
[   43.670478] RIP: 0010:[<ffffffff8129c35c>]  [<ffffffff8129c35c>] vmstat_update+0x8c/0xc0
[   43.678850] RSP: 0018:ffff88012b7abd70  EFLAGS: 00010293
[   43.684312] RAX: 0000000000000001 RBX: ffff88012b70b880 RCX: 0000000000000000
[   43.691561] RDX: 0000000000000000 RSI: ffffffff82f4d2cf RDI: ffffffff82f07b52
[   43.698947] RBP: ffff88012b7abd90 R08: 0000000000000000 R09: 0000000000000003
[   43.706194] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0
[   43.713473] R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff83436b78
[   43.720729] FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
[   43.728929] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.734782] CR2: 0000558ce3672000 CR3: 000000012a5dc000 CR4: 00000000001406f0
[   43.742037] Stack:
[   43.744161]  ffff88012b70b880 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20
[   43.752574]  ffff88012b7abe00 ffffffff811915d7 ffffffff81191544 ffff88012c116a08
[   43.760678]  0000000000000000 ffffffff84310f90 ffffffff83da56a0 0000000000000000
[   43.768670] Call Trace:
[   43.771230]  [<ffffffff811915d7>] process_one_work+0x237/0x7f0
[   43.777210]  [<ffffffff81191544>] ? process_one_work+0x1a4/0x7f0
[   43.783331]  [<ffffffff81191bd9>] worker_thread+0x49/0x460
[   43.788927]  [<ffffffff81191b90>] ? process_one_work+0x7f0/0x7f0
[   43.795092]  [<ffffffff81196de3>] kthread+0xe3/0x100
[   43.800179]  [<ffffffff81196d00>] ? kthread_create_on_node+0x210/0x210
[   43.806833]  [<ffffffff8264e8af>] ret_from_fork+0x3f/0x70
[   43.812340]  [<ffffffff81196d00>] ? kthread_create_on_node+0x210/0x210
[   43.818975] Code: 41 5c 41 5d 41 5e 5d c3 e8 62 80 62 00 83 f8 3f 77 1b 89 c0 f0 48 0f ab 05 4a 4c 07 03 72 0c 48 83 c4 08 41 5c 41 5d 41 5e 5d c3 <0f> 0b 80 3d 0b b2 16 02 00 75 dc be 75 00 00 00 48 c7 c7 3f ee 
[   43.846429] RIP  [<ffffffff8129c35c>] vmstat_update+0x8c/0xc0
[   43.852582]  RSP <ffff88012b7abd70>
[   43.856396] ---[ end trace 8be2a0228d71e68b ]---
[   43.861133] Kernel panic - not syncing: Fatal exception
[   43.867682] Kernel Offset: disabled
[   43.871293] Rebooting in 86400 seconds..