IPVS: length: 51 != 8
BUG: unable to handle kernel paging request at ffffeafff9e40020
IP: [<ffffffff8154dfa1>] __read_once_size include/linux/compiler.h:243 [inline]
IP: [<ffffffff8154dfa1>] compound_head include/linux/page-flags.h:143 [inline]
IP: [<ffffffff8154dfa1>] PageMlocked include/linux/page-flags.h:327 [inline]
IP: [<ffffffff8154dfa1>] __split_huge_pmd+0x391/0x1870 mm/huge_memory.c:1773
PGD 0 [  168.047843] 
Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 9816 Comm: syz-executor7 Not tainted 4.9.122-g54068d6 #26
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c42d9800 task.stack: ffff8801d7428000
RIP: 0010:[<ffffffff8154dfa1>]  [<ffffffff8154dfa1>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8154dfa1>]  [<ffffffff8154dfa1>] compound_head include/linux/page-flags.h:143 [inline]
RIP: 0010:[<ffffffff8154dfa1>]  [<ffffffff8154dfa1>] PageMlocked include/linux/page-flags.h:327 [inline]
RIP: 0010:[<ffffffff8154dfa1>]  [<ffffffff8154dfa1>] __split_huge_pmd+0x391/0x1870 mm/huge_memory.c:1773
RSP: 0018:ffff8801d742f948  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff9e40000 RCX: ffffc900020a9000
RDX: 1ffffd5fff3c8004 RSI: ffffffff8154df6e RDI: ffffeafff9e40020
RBP: ffff8801d742fa78 R08: ffff8801c42da110 R09: 0000000000000001
R10: ffff8801c42d9800 R11: 1ffff1003885b41d R12: ffffea0000000000
R13: 0000000000000000 R14: ffff8801c9e90518 R15: ffff8801c824b800
FS:  00007fd87c249700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffeafff9e40020 CR3: 00000001c6d6c000 CR4: 00000000001606f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Stack:
 ffffffff8153e677 ffffffff8153ec42 ffff8801d742f998 ffffffff81f202ab
 ffffffff814e454a ffffffff855d38c0 000060fe24a233d8 0000000000007479
 ffff8801c42da108 ffff8801c42da0b8 ffff8801c42da110 1ffff1003ae85f3e
Call Trace:
IPVS: length: 51 != 8
 [<ffffffff8154f629>] split_huge_pmd_address+0x1a9/0x1f0 mm/huge_memory.c:1800
 [<ffffffff8154f83a>] vma_adjust_trans_huge+0x1ca/0x250 mm/huge_memory.c:1816
 [<ffffffff814df138>] __vma_adjust+0x168/0x16c0 mm/mmap.c:777
 [<ffffffff814e0a50>] vma_adjust include/linux/mm.h:1965 [inline]
 [<ffffffff814e0a50>] __split_vma.isra.40+0x3c0/0x670 mm/mmap.c:2621
 [<ffffffff814e454a>] split_vma+0x8a/0xc0 mm/mmap.c:2653
 [<ffffffff814ec48a>] mprotect_fixup+0x6ca/0x930 mm/mprotect.c:365
 [<ffffffff814ecb7e>] do_mprotect_pkey+0x48e/0x890 mm/mprotect.c:509
 [<ffffffff814ecfaa>] SYSC_mprotect mm/mprotect.c:534 [inline]
 [<ffffffff814ecfaa>] SyS_mprotect+0x2a/0x40 mm/mprotect.c:531
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff83a00cd3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: ff df 4c 21 e3 49 bc 00 00 00 00 00 ea ff ff 48 c1 eb 06 4c 01 e3 48 8d 7b 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 14 13 00 00 <4c> 8b 6b 20 49 89 dc 41 f6 c5 01 0f 85 ab 0a 00 00 e8 b9 2d e1 
RIP  [<ffffffff8154dfa1>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8154dfa1>] compound_head include/linux/page-flags.h:143 [inline]
RIP  [<ffffffff8154dfa1>] PageMlocked include/linux/page-flags.h:327 [inline]
RIP  [<ffffffff8154dfa1>] __split_huge_pmd+0x391/0x1870 mm/huge_memory.c:1773
 RSP <ffff8801d742f948>
CR2: ffffeafff9e40020
---[ end trace a28ed19c9eb586e8 ]---