netlink: 17 bytes leftover after parsing attributes in process `syz-executor5'.
BUG: unable to handle kernel paging request at 00000000913f55aa
IP: virt_to_head_page include/linux/mm.h:614 [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: 1 PID: 20612 Comm: syz-executor6 Not tainted 4.15.0-rc1+ #134
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 00000000fc1573a1 task.stack: 00000000d7b7ee7d
RIP: 0010:virt_to_head_page include/linux/mm.h:614 [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: 0000:ffff8801c8e97898 EFLAGS: 00010282
RAX: 0000000000041180 RBX: 0000000000000286 RCX: ffffea0000000000
RDX: ffffebe000001040 RSI: ffff8801d8f0ed78 RDI: 0000000000000286
RBP: ffff8801c8e978d0 R08: 1ffff100391d2ee1 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000041180 R15: ffffffff85ecb400
FS:  00000000029c7940(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebe000001060 CR3: 00000001cb1c4000 CR4: 00000000001406e0
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:536
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc mm/slab.c:3385 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3545
 ptlock_alloc mm/memory.c:4685 [inline]
 ptlock_init include/linux/mm.h:1776 [inline]
 pgtable_pmd_page_ctor include/linux/mm.h:1868 [inline]
 pmd_alloc_one arch/x86/include/asm/pgalloc.h:94 [inline]
 __pmd_alloc+0xb6/0x4e0 mm/memory.c:4178
 pmd_alloc include/linux/mm.h:1726 [inline]
 __handle_mm_fault+0x1154/0x3ad0 mm/memory.c:4027
 handle_mm_fault+0x334/0x8d0 mm/memory.c:4097
 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429
 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504
 page_fault+0x22/0x30 arch/x86/entry/entry_64.S:1094
RIP: 0033:0x4060c4
RSP: 002b:0000000000a6f940 EFLAGS: 00010287
RAX: 0000001b9cc20000 RBX: 00000000029c7914 RCX: 000000000040cc30
RDX: 0000001b9bc20000 RSI: 0000000000a6fb50 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000029c7940
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000059c
R13: 000000000000001e R14: 0000000000018767 R15: 0000000000000016
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:614 [inline] RSP: ffff8801c8e97898
RIP: qlink_to_cache mm/kasan/quarantine.c:127 [inline] RSP: ffff8801c8e97898
RIP: qlist_free_all+0x12b/0x160 mm/kasan/quarantine.c:163 RSP: ffff8801c8e97898
CR2: ffffebe000001060
---[ end trace 833dee248f3bd10e ]---