BUG: unable to handle kernel paging request at ffffeafff9b88020
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 [  111.053482] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=8658 comm=syz-executor2

Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 8653 Comm: syz-executor3 Not tainted 4.9.122-g54068d6 #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801a3769800 task.stack: ffff8801c1898000
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:ffff8801c189f8f0  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff9b88000 RCX: ffffc90002c93000
RDX: 1ffffd5fff371004 RSI: ffffffff8154df6e RDI: ffffeafff9b88020
RBP: ffff8801c189fa20 R08: ffff8801a376a110 R09: 0000000000000001
R10: ffff8801a3769800 R11: 1ffff100346ed41d R12: ffffea0000000000
R13: 0000000000000000 R14: ffff8801cccdcbe0 R15: ffff8801d53ab800
FS:  00007fc3c8989700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffeafff9b88020 CR3: 00000001d3c0c000 CR4: 00000000001606f0
Stack:
 ffffffff8153e677 ffffffff8153ec42 ffffffff8153a57e ffffffff814e075c
 ffffffff855d4130 ffffffff814e78bd 0000000000003e20 ffff8801a376a108
 ffff8801a376a0b8 ffff8801a376a110 ffff8801a376a0c0 1ffff10038313f33
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
 [<ffffffff814e78bd>] mmap_region+0x14d/0x1040 mm/mmap.c:1667
 [<ffffffff814e8d4c>] do_mmap+0x59c/0xcc0 mm/mmap.c:1505
 [<ffffffff8149a228>] do_mmap_pgoff include/linux/mm.h:2032 [inline]
 [<ffffffff8149a228>] vm_mmap_pgoff+0x168/0x1b0 mm/util.c:329
 [<ffffffff814e2d10>] SYSC_mmap_pgoff mm/mmap.c:1555 [inline]
 [<ffffffff814e2d10>] SyS_mmap_pgoff+0xd0/0x550 mm/mmap.c:1513
 [<ffffffff8105e276>] SYSC_mmap arch/x86/kernel/sys_x86_64.c:96 [inline]
 [<ffffffff8105e276>] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:87
 [<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 <ffff8801c189f8f0>
CR2: ffffeafff9b88020
---[ end trace 7503c88613569206 ]---