syzkaller login: [   27.700967] ------------[ cut here ]------------
[   27.705911] kernel BUG at mm/vmstat.c:1420!
[   27.710846] invalid opcode: 0000 [#1] PREEMPT SMP 
[   27.716253] Modules linked in:
[   27.719547] CPU: 1 PID: 2832 Comm: kworker/1:2 Not tainted 4.4.186 #16
[   27.726193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.735968] Workqueue: vmstat vmstat_update
[   27.740804] task: ffff8800b8a0a380 ti: ffff8800b8b38000 task.ti: ffff8800b8b38000
[   27.748407] RIP: 0010:[<ffffffff8129c35c>]  [<ffffffff8129c35c>] vmstat_update+0x8c/0xc0
[   27.756787] RSP: 0018:ffff8800b8b3bd70  EFLAGS: 00010293
[   27.762223] RAX: 0000000000000001 RBX: ffff8800baed2340 RCX: 0000000000000000
[   27.769475] RDX: 0000000000000000 RSI: ffffffff82f4e086 RDI: ffffffff82f08752
[   27.776955] RBP: ffff8800b8b3bd90 R08: 0000000000000000 R09: 0000000000000003
[   27.784215] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0
[   27.791462] R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff83436ef8
[   27.798786] FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
[   27.806998] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.812882] CR2: 00007ffa63e9a000 CR3: 0000000128867000 CR4: 00000000001406f0
[   27.820212] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.827592] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.834847] Stack:
[   27.836975]  ffff8800baed2340 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20
[   27.844988]  ffff8800b8b3be00 ffffffff811915d7 ffffffff81191544 ffff88012c116a08
[   27.853119]  0000000000000000 ffffffff84310f90 ffffffff83da5d60 0000000000000000
[   27.861331] Call Trace:
[   27.863913]  [<ffffffff811915d7>] process_one_work+0x237/0x7f0
[   27.869860]  [<ffffffff81191544>] ? process_one_work+0x1a4/0x7f0
[   27.875994]  [<ffffffff81191bd9>] worker_thread+0x49/0x460
[   27.881611]  [<ffffffff81191b90>] ? process_one_work+0x7f0/0x7f0
[   27.887749]  [<ffffffff81196de3>] kthread+0xe3/0x100
[   27.892826]  [<ffffffff81196d00>] ? kthread_create_on_node+0x210/0x210
[   27.899585]  [<ffffffff82651a6f>] ret_from_fork+0x3f/0x70
[   27.905110]  [<ffffffff81196d00>] ? kthread_create_on_node+0x210/0x210
[   27.911811] 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 8b b5 16 02 00 75 dc be 75 00 00 00 48 c7 c7 3f fa 
[   27.939731] RIP  [<ffffffff8129c35c>] vmstat_update+0x8c/0xc0
[   27.945784]  RSP <ffff8800b8b3bd70>
[   27.949501] ---[ end trace 014ea6d7d9d8e87c ]---
[   27.954274] Kernel panic - not syncing: Fatal exception
[   27.960844] Kernel Offset: disabled
[   27.964469] Rebooting in 86400 seconds..