syzkaller login: [   51.656706] ------------[ cut here ]------------
[   51.662030] kernel BUG at mm/vmstat.c:1420!
[   51.666324] invalid opcode: 0000 [#1] PREEMPT SMP 
[   51.671602] Modules linked in:
[   51.675055] CPU: 1 PID: 2786 Comm: kworker/1:2 Not tainted 4.4.180 #8
[   51.681616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.690955] Workqueue: vmstat vmstat_update
[   51.695613] task: ffff8800b89c88c0 ti: ffff8800b85ec000 task.ti: ffff8800b85ec000
[   51.703476] RIP: 0010:[<ffffffff8129c2ac>]  [<ffffffff8129c2ac>] vmstat_update+0x8c/0xc0
[   51.711951] RSP: 0018:ffff8800b85efd70  EFLAGS: 00010293
[   51.717492] RAX: 0000000000000001 RBX: ffff8800bb1434c0 RCX: 0000000000000000
[   51.725023] RDX: 0000000000000000 RSI: ffffffff82f4c7c1 RDI: ffffffff82f070e2
[   51.732266] RBP: ffff8800b85efd90 R08: 0000000000000000 R09: 0000000000000003
[   51.739734] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0
[   51.746976] R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff83436878
[   51.754747] FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
[   51.762961] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.768909] CR2: 0000558287878000 CR3: 00000000bba30000 CR4: 00000000001406f0
[   51.776293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   51.783550] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   51.791052] Stack:
[   51.793175]  ffff8800bb1434c0 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20
[   51.801341]  ffff8800b85efe00 ffffffff811914e7 ffffffff81191454 ffff88012c116a08
[   51.809484]  0000000000000000 ffffffff84310f90 ffffffff83da5850 0000000000000000
[   51.817707] Call Trace:
[   51.820278]  [<ffffffff811914e7>] process_one_work+0x237/0x7f0
[   51.826225]  [<ffffffff81191454>] ? process_one_work+0x1a4/0x7f0
[   51.832697]  [<ffffffff81191ae9>] worker_thread+0x49/0x460
[   51.838311]  [<ffffffff81191aa0>] ? process_one_work+0x7f0/0x7f0
[   51.844447]  [<ffffffff81196cf3>] kthread+0xe3/0x100
[   51.849530]  [<ffffffff81196c10>] ? kthread_create_on_node+0x210/0x210
[   51.856173]  [<ffffffff8264c86f>] ret_from_fork+0x3f/0x70
[   51.861682]  [<ffffffff81196c10>] ? kthread_create_on_node+0x210/0x210
[   51.868454] Code: 41 5c 41 5d 41 5e 5d c3 e8 72 7b 62 00 83 f8 3f 77 1b 89 c0 f0 48 0f ab 05 fa 4c 07 03 72 0c 48 83 c4 08 41 5c 41 5d 41 5e 5d c3 <0f> 0b 80 3d 7e af 16 02 00 75 dc be 75 00 00 00 48 c7 c7 17 e4 
[   51.897103] RIP  [<ffffffff8129c2ac>] vmstat_update+0x8c/0xc0
[   51.903099]  RSP <ffff8800b85efd70>
[   51.907108] ---[ end trace a8acef27d514c90b ]---
[   51.912445] Kernel panic - not syncing: Fatal exception
[   51.919263] Kernel Offset: disabled
[   51.923017] Rebooting in 86400 seconds..