syzkaller login: [   31.814617] ------------[ cut here ]------------
[   31.819541] kernel BUG at mm/vmstat.c:1420!
[   31.824048] invalid opcode: 0000 [#1] PREEMPT SMP 
[   31.829357] Modules linked in:
[   31.832655] CPU: 1 PID: 918 Comm: kworker/1:1 Not tainted 4.4.186 #16
[   31.839367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.849052] Workqueue: vmstat vmstat_update
[   31.853701] task: ffff8800ba514280 ti: ffff8800baba4000 task.ti: ffff8800baba4000
[   31.861733] RIP: 0010:[<ffffffff8129c35c>]  [<ffffffff8129c35c>] vmstat_update+0x8c/0xc0
[   31.870204] RSP: 0018:ffff8800baba7d70  EFLAGS: 00010293
[   31.875877] RAX: 0000000000000001 RBX: ffff8800baa7a100 RCX: 0000000000000000
[   31.883240] RDX: 0000000000000000 RSI: ffffffff82f4e086 RDI: ffffffff82f08752
[   31.891144] RBP: ffff8800baba7d90 R08: 0000000000000000 R09: 0000000000000003
[   31.899401] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0
[   31.906867] R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff83436ef8
Warning: Permanently added '10.128.0.30' (ECDSA) to the list of known hosts.
[   31.914568] FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
[   31.922903] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.929022] CR2: 00007f132d9a8000 CR3: 00000000affdc000 CR4: 00000000001406f0
[   31.936813] Stack:
[   31.939137]  ffff8800baa7a100 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20
[   31.947411]  ffff8800baba7e00 ffffffff811915d7 ffffffff81191544 ffff88012c116a08
[   31.955615]  0000000000000000 ffffffff84310f90 ffffffff83db9740 0000000000000000
[   31.964398] Call Trace:
[   31.967341]  [<ffffffff811915d7>] process_one_work+0x237/0x7f0
[   31.973375]  [<ffffffff81191544>] ? process_one_work+0x1a4/0x7f0
[   31.979636]  [<ffffffff81191bd9>] worker_thread+0x49/0x460
[   31.985245]  [<ffffffff81191b90>] ? process_one_work+0x7f0/0x7f0
[   31.991717]  [<ffffffff81196de3>] kthread+0xe3/0x100
[   31.997394]  [<ffffffff81196d00>] ? kthread_create_on_node+0x210/0x210
[   32.004925]  [<ffffffff82651a6f>] ret_from_fork+0x3f/0x70
[   32.011097]  [<ffffffff81196d00>] ? kthread_create_on_node+0x210/0x210
[   32.017875] 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 
[   32.047666] RIP  [<ffffffff8129c35c>] vmstat_update+0x8c/0xc0
[   32.054139]  RSP <ffff8800baba7d70>
[   32.057976] ---[ end trace 5ec0184f20dc1689 ]---
[   32.063150] Kernel panic - not syncing: Fatal exception
[   32.069941] Kernel Offset: disabled
[   32.073776] Rebooting in 86400 seconds..