BUG: unable to handle kernel NULL pointer dereference at 00000000000000fd
IP: qlist_free_all+0x37/0x160 mm/kasan/quarantine.c:163
PGD 0 P4D 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 19220 Comm: modprobe Not tainted 4.16.0-rc4+ #341
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:qlist_free_all+0x37/0x160 mm/kasan/quarantine.c:163
RSP: 0018:ffff8801b266fa60 EFLAGS: 00010246
RAX: ffff8801d2828000 RBX: 0000000000000286 RCX: 0000000000000000
RDX: ffffea00074a0a00 RSI: ffffea0006a8cb9f RDI: 0000000000000286
RBP: ffff8801b266fa98 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffff8801d2828000 R15: ffffffff86ec9920
FS:  00007f6a2336f700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000fd CR3: 00000001cf0b9006 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 quarantine_reduce+0x141/0x170 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xca/0xe0 mm/kasan/kasan.c:537
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 slab_post_alloc_hook mm/slab.h:443 [inline]
 slab_alloc mm/slab.c:3379 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3539
 getname_flags+0xcb/0x580 fs/namei.c:138
 user_path_at_empty+0x2d/0x50 fs/namei.c:2568
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0xe9/0x190 fs/stat.c:185
 vfs_stat include/linux/fs.h:3074 [inline]
 SYSC_newstat+0x87/0xf0 fs/stat.c:337
 SyS_newstat+0x1d/0x30 fs/stat.c:333
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f6a22c86c65
RSP: 002b:00007ffc09f38d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00007f6a22f52481 RCX: 00007f6a22c86c65
RDX: 00007ffc09f38e40 RSI: 00007ffc09f38e40 RDI: 00007f6a22f52481
RBP: 00007f6a231572f0 R08: 00007f6a22f3def8 R09: 00007f6a22cda070
R10: 0000000000000000 R11: 0000000000000246 R12: 000055ff278be160
R13: 00007ffc09f38f73 R14: 0000000000000010 R15: 00055facc785c680
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 49 c7 c7 20 99 ec 86 53 49 89 f4 48 83 ec 10 48 89 7d c8 4d 85 e4 4d 89 e5 0f 84 c8 00 00 00 <49> 63 95 fc 00 00 00 4c 8b 30 48 29 d0 49 83 3f 00 48 89 c6 0f 
RIP: qlist_free_all+0x37/0x160 mm/kasan/quarantine.c:163 RSP: ffff8801b266fa60
CR2: 00000000000000fd
---[ end trace 7e6a47a3b15c8726 ]---