BUG: unable to handle kernel paging request at 00000000ae695be4
IP: kmem_cache_alloc+0x13a/0x760 mm/slab.c:3549
PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 1703 Comm: udevd Not tainted 4.15.0-rc1-mm1+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 0000000092d70961 task.stack: 0000000037e19fcf
RIP: 0010:kmem_cache_alloc+0x13a/0x760 mm/slab.c:3549
RSP: 0018:ffff8801cbe17cf0 EFLAGS: 00010282
RAX: 0000000090a0013f RBX: 0000000000001000 RCX: 0000000000001100
RDX: ffffffff85176641 RSI: 00000000014000c0 RDI: 0000000000000000
RBP: ffff8801cbe17d60 R08: 0000000000000009 R09: ffff8801cbe17a88
R10: 00000000d5977fa7 R11: 000000002c464c9c R12: ffff8801c0042500
R13: ffff8801db21a780 R14: ffffffff81b2c3bb R15: 00000000014000c0
FS:  00007fd86941a7a0(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001cbde5000 CR4: 00000000001426f0
Call Trace:
 getname_flags+0xcb/0x580 fs/namei.c:138
 user_path_at_empty+0x2d/0x50 fs/namei.c:2590
 user_path_at include/linux/namei.h:57 [inline]
 do_utimes+0x1f1/0x2b0 fs/utimes.c:152
 SYSC_utimensat fs/utimes.c:184 [inline]
 SyS_utimensat+0x101/0x1a0 fs/utimes.c:168
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x7fd868b22a32
RSP: 002b:00007ffeec992408 EFLAGS: 00000206 ORIG_RAX: 0000000000000118
RAX: ffffffffffffffda RBX: 00000000007779a0 RCX: 00007fd868b22a32
RDX: 0000000000000000 RSI: 00007ffeec992df0 RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000777515 R09: 00007fd868b76ff0
R10: 0000000000000100 R11: 0000000000000206 R12: 00000000ffffffff
R13: 0000000000420298 R14: 00007ffeec98f202 R15: 000000000000000b
Code: 89 e6 4c 89 f7 21 da e8 65 4f 00 00 0f 1f 44 00 00 44 89 fa 4c 89 e6 4c 89 ef e8 52 4f 00 00 41 8b 4d 14 49 63 5d 74 4c 8b 75 08 <cc> 1f 44 00 00 65 8b 05 0a b7 5a 7e 89 c0 48 0f a3 05 10 50 b8 
RIP: kmem_cache_alloc+0x13a/0x760 mm/slab.c:3549 RSP: ffff8801cbe17cf0
CR2: fffffffffffffff8
---[ end trace 364645593a55a0dc ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..