BUG: unable to handle kernel paging request at ffffeafff97d0020
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 [   74.330791] 
Oops: 0000 [#1] PREEMPT SMP KASAN
device lo entered promiscuous mode
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 6539 Comm: syz-executor0 Not tainted 4.9.122-g54068d6 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801a391b000 task.stack: ffff8801cfbe8000
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:ffff8801cfbef9f8  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff97d0000 RCX: ffffc90000876000
RDX: 1ffffd5fff2fa004 RSI: ffffffff8154df6e RDI: ffffeafff97d0020
RBP: ffff8801cfbefb28 R08: ffff8801a391b910 R09: 0000000000000001
R10: ffff8801a391b000 R11: 1ffff1003472371d R12: ffffea0000000000
R13: 0000000000000000 R14: ffff8801d44f7610 R15: ffff8801d41fa800
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f5715b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffeafff97d0020 CR3: 00000001d7017000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff8153e677 ffffffff8153ec42 ffffffff8153a57e ffffffff814e075c
 ffffffff814e454a ffffffff855d2ea0 ffffffff814db3d1 0000000000000647
 ffff8801a391b908 ffff8801a391b8b8 ffff8801a391b910 1ffff10039f7df54
Call Trace:
 [<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
 [<ffffffff814db05e>] mlock_fixup+0x3ce/0x500 mm/mlock.c:539
 [<ffffffff814db3d1>] apply_vma_lock_flags+0x241/0x330 mm/mlock.c:608
 [<ffffffff814db6aa>] do_mlock+0x1ea/0x5c0 mm/mlock.c:700
 [<ffffffff814dbec2>] SYSC_mlock mm/mlock.c:714 [inline]
 [<ffffffff814dbec2>] SyS_mlock+0x22/0x30 mm/mlock.c:712
 [<ffffffff81006da7>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 [<ffffffff81006da7>] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387
 [<ffffffff83a023d0>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
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 <ffff8801cfbef9f8>
CR2: ffffeafff97d0020
---[ end trace 470c422d06dcfc54 ]---