BUG: unable to handle kernel paging request at ffffeafff9be0020
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 [  134.023684] 
Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 11157 Comm: syz-executor6 Not tainted 4.9.122-g54068d6 #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801a4bfb000 task.stack: ffff8801d7b38000
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:ffff8801d7b3fa50  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff9be0000 RCX: ffffc900058dd000
RDX: 1ffffd5fff37c004 RSI: ffffffff8154df6e RDI: ffffeafff9be0020
RBP: ffff8801d7b3fb80 R08: ffff8801a4bfb910 R09: 0000000000000001
R10: ffff8801a4bfb000 R11: 1ffff1003497f71d R12: ffffea0000000000
R13: 0000000000000000 R14: ffff8801cfd46ae8 R15: ffff8801cc298800
FS:  00007f9c607a9700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffeafff9be0020 CR3: 00000001cda31000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff8153e677 ffffffff8153ec42 ffffffff8153a57e ffffffff814e075c
 ffffffff855d3050 ffffffff814f000e 0000000000006511 ffff8801a4bfb908
 ffff8801a4bfb8b8 ffff8801a4bfb910 ffff8801a4bfb8c0 1ffff1003af67f5f
Call Trace:
 [<ffffffff8154f629>] split_huge_pmd_address+0x1a9/0x1f0 mm/huge_memory.c:1800
 [<ffffffff8154f853>] vma_adjust_trans_huge+0x1e3/0x250 mm/huge_memory.c:1826
 [<ffffffff814df138>] __vma_adjust+0x168/0x16c0 mm/mmap.c:777
 [<ffffffff814e0bc0>] vma_adjust include/linux/mm.h:1965 [inline]
 [<ffffffff814e0bc0>] __split_vma.isra.40+0x530/0x670 mm/mmap.c:2624
 [<ffffffff814e0f52>] do_munmap+0x252/0xe50 mm/mmap.c:2703
 [<ffffffff814f000e>] mremap_to mm/mremap.c:435 [inline]
 [<ffffffff814f000e>] SYSC_mremap mm/mremap.c:526 [inline]
 [<ffffffff814f000e>] SyS_mremap+0x82e/0xd20 mm/mremap.c:492
 [<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 <ffff8801d7b3fa50>
CR2: ffffeafff9be0020
---[ end trace 75b7b545d257472a ]---