BUG: unable to handle kernel paging request at ffffeafff93e8000
IP: [<ffffffff815091e5>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
IP: [<ffffffff815091e5>] PageHead include/linux/page-flags.h:396 [inline]
IP: [<ffffffff815091e5>] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968
PGD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
PM: Basic memory bitmaps created
PM: Basic memory bitmaps freed
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 21082 Comm: syz-executor2 Not tainted 4.4.150-g5541782 #83
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b69e4800 task.stack: ffff8801bdde0000
RIP: 0010:[<ffffffff815091e5>]  [<ffffffff815091e5>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
RIP: 0010:[<ffffffff815091e5>]  [<ffffffff815091e5>] PageHead include/linux/page-flags.h:396 [inline]
RIP: 0010:[<ffffffff815091e5>]  [<ffffffff815091e5>] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968
RSP: 0018:ffff8801bdde7a00  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff93e8000 RCX: ffffc9000187e000
RDX: 1ffffd5fff27d000 RSI: ffffffff815091bf RDI: 00003ffe4fa001e0
RBP: ffff8801bdde7a70 R08: ffffffff8532bf10 R09: 0000000000000000
R10: 0000000000000001 R11: ffff8800b69e4800 R12: ffff8801d69ba800
R13: ffff8800b2919900 R14: ffffea0000000000 R15: 00003ffe4fa001e0
FS:  00007f9d68066700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffeafff93e8000 CR3: 00000001ccb1e000 CR4: 00000000001606f0
Stack:
 00003ffe4fa001e0 0000000000000080 ffff8800b199a800 ffff8800b9af1058
 ffff8800b1640ec8 ffff8800bb175800 ffffea0002eac640 00000000b69e50e0
 0000000020000000 ffff8801d69ba800 ffff8801d69ba800 dffffc0000000000
Call Trace:
 [<ffffffff8149c451>] copy_pmd_range mm/memory.c:1007 [inline]
 [<ffffffff8149c451>] copy_pud_range mm/memory.c:1039 [inline]
 [<ffffffff8149c451>] copy_page_range+0x721/0x1480 mm/memory.c:1101
 [<ffffffff8112e4a3>] dup_mmap kernel/fork.c:517 [inline]
 [<ffffffff8112e4a3>] dup_mm kernel/fork.c:985 [inline]
 [<ffffffff8112e4a3>] copy_mm kernel/fork.c:1039 [inline]
 [<ffffffff8112e4a3>] copy_process+0x3f03/0x63f0 kernel/fork.c:1507
 [<ffffffff81130da6>] _do_fork+0x146/0xe20 kernel/fork.c:1788
 [<ffffffff81131b57>] SYSC_clone kernel/fork.c:1899 [inline]
 [<ffffffff81131b57>] SyS_clone+0x37/0x50 kernel/fork.c:1893
 [<ffffffff838cb0a5>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: e8 21 b3 e4 ff 48 23 5d 90 48 b8 00 00 00 00 00 fc ff df 48 c1 eb 06 4c 01 f3 48 89 da 48 c1 ea 03 80 3c 02 00 0f 85 3f 04 00 00 <48> 8b 03 f6 c4 40 0f 84 79 03 00 00 e8 ea b2 e4 ff 48 8d 7b 20 
RIP  [<ffffffff815091e5>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
RIP  [<ffffffff815091e5>] PageHead include/linux/page-flags.h:396 [inline]
RIP  [<ffffffff815091e5>] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968
 RSP <ffff8801bdde7a00>
CR2: ffffeafff93e8000
---[ end trace a5fdf2e6ce9d296c ]---