BUG: unable to handle kernel paging request at ffffebe000000020
PGD 0 P4D 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 14270 Comm: syz-executor0 Not tainted 4.17.0-rc2+ #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:virt_to_head_page include/linux/mm.h:624 [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:ffff880190bc7ba8 EFLAGS: 00010286
RAX: 0000000000000001 RBX: 0000000000000286 RCX: ffffea0000000000
RDX: ffffebe000000000 RSI: ffff8801cab5af38 RDI: 0000000000000286
RBP: ffff880190bc7be0 R08: ffff8801cab5af38 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff88d18ae0
FS:  0000000001e30940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebe000000020 CR3: 00000001bb3ed000 CR4: 00000000001406f0
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+0x99/0xe0 mm/kasan/kasan.c:538
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 slab_post_alloc_hook mm/slab.h:444 [inline]
 slab_alloc mm/slab.c:3392 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3552
 getname_flags+0xd0/0x5a0 fs/namei.c:140
 getname fs/namei.c:211 [inline]
 do_symlinkat+0x83/0x2b0 fs/namei.c:4113
 __do_sys_symlink fs/namei.c:4143 [inline]
 __se_sys_symlink fs/namei.c:4141 [inline]
 __x64_sys_symlink+0x59/0x80 fs/namei.c:4141
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4550b7
RSP: 002b:0000000000a3eab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00000000000000e2 RCX: 00000000004550b7
RDX: 0000000000000000 RSI: 00000000004ba824 RDI: 0000000000a3f830
RBP: 0000000000000013 R08: 0000000000000000 R09: 0000000001e30940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000001380
Code: 00 00 00 80 48 01 c2 72 43 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:624 [inline] RSP: ffff880190bc7ba8
RIP: qlink_to_cache mm/kasan/quarantine.c:127 [inline] RSP: ffff880190bc7ba8
RIP: qlist_free_all+0x12b/0x160 mm/kasan/quarantine.c:163 RSP: ffff880190bc7ba8
CR2: ffffebe000000020
---[ end trace 707bccd79e36c395 ]---