BUG: unable to handle kernel paging request at ffffebe010000020
IP: virt_to_head_page include/linux/mm.h:615 [inline]
IP: qlink_to_cache mm/kasan/quarantine.c:127 [inline]
IP: qlist_free_all+0x12b/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: 8705 Comm: udevd Not tainted 4.16.0-rc7+ #292
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:virt_to_head_page include/linux/mm.h:615 [inline]
RIP: 0010:qlink_to_cache mm/kasan/quarantine.c:127 [inline]
RIP: 0010:qlist_free_all+0x12b/0x160 mm/kasan/quarantine.c:163
RSP: 0018:ffff8801ca677b60 EFLAGS: 00010286
RAX: 0000000400000004 RBX: 0000000000000282 RCX: ffffea0000000000
RDX: ffffebe010000000 RSI: ffff8801c0170ab8 RDI: 0000000000000282
RBP: ffff8801ca677b98 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000400000004 R15: ffffffff88512760
FS:  00007f4d7821b7a0(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebe010000020 CR3: 0000000196627001 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:3380 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3540
 getname_flags+0xcb/0x580 fs/namei.c:138
 user_path_at_empty+0x2d/0x50 fs/namei.c:2569
 user_path_at include/linux/namei.h:57 [inline]
 inotify_find_inode fs/notify/inotify/inotify_user.c:334 [inline]
 SYSC_inotify_add_watch fs/notify/inotify/inotify_user.c:709 [inline]
 SyS_inotify_add_watch+0x12b/0x810 fs/notify/inotify/inotify_user.c:668
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f4d7792fa07
RSP: 002b:00007ffeb5257258 EFLAGS: 00000202 ORIG_RAX: 00000000000000fe
RAX: ffffffffffffffda RBX: 0000000001796250 RCX: 00007f4d7792fa07
RDX: 0000000000000008 RSI: 00000000017b46b0 RDI: 0000000000000006
RBP: 00000000017adf60 R08: 00007f4d7821b7a0 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000202 R12: 0000000000000001
R13: 00000000017ad660 R14: 0000000001796250 R15: 000000000000000b
Code: 00 00 00 80 48 01 c2 72 44 48 b9 00 00 00 80 ff 77 00 00 48 01 ca 48 b9 00 00 00 00 00 ea ff ff 48 c1 ea 0c 48 c1 e2 06 48 01 ca <48> 8b 4a 20 48 8d 71 ff 83 e1 01 48 0f 45 d6 4c 8b 6a 30 e9 f4 
RIP: virt_to_head_page include/linux/mm.h:615 [inline] RSP: ffff8801ca677b60
RIP: qlink_to_cache mm/kasan/quarantine.c:127 [inline] RSP: ffff8801ca677b60
RIP: qlist_free_all+0x12b/0x160 mm/kasan/quarantine.c:163 RSP: ffff8801ca677b60
CR2: ffffebe010000020
---[ end trace 1e2a881486fa2aed ]---