syz-executor3 (6184) used greatest stack depth: 23008 bytes left
keychord: unsupported version 3
BUG: unable to handle kernel paging request at ffffeafffd7b8000
IP: [<ffffffff815086f5>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
IP: [<ffffffff815086f5>] PageHead include/linux/page-flags.h:396 [inline]
IP: [<ffffffff815086f5>] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968
PGD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 6288 Comm: syz-executor1 Not tainted 4.4.148-gf057ff9 #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801bbc46000 task.stack: ffff8800b29f8000
RIP: 0010:[<ffffffff815086f5>]  [<ffffffff815086f5>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
RIP: 0010:[<ffffffff815086f5>]  [<ffffffff815086f5>] PageHead include/linux/page-flags.h:396 [inline]
RIP: 0010:[<ffffffff815086f5>]  [<ffffffff815086f5>] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968
RSP: 0018:ffff8800b29ff988  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafffd7b8000 RCX: ffffc90001e8e000
RDX: 1ffffd5fffaf7000 RSI: ffffffff815086cf RDI: 00003fff5ee001e0
RBP: ffff8800b29ff9f8 R08: ffffffff854083f0 R09: 0000000000000000
R10: 0000000000000001 R11: ffff8801bbc46000 R12: ffff8800b9a54800
R13: ffff8800b1a33200 R14: ffffea0000000000 R15: 00003fff5ee001e0
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f57c3b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffeafffd7b8000 CR3: 00000000ba333000 CR4: 00000000001606f0
Stack:
 00003fff5ee001e0 0000000000000080 ffff8801cfc30000 ffff8801cd021c60
 ffff8801c7c9ad10 ffff8800aeda0800 ffffea0002be6580 00000000bbc468e0
 0000000020000000 ffff8800b9a54800 ffff8800b9a54800 dffffc0000000000
Call Trace:
 [<ffffffff8149bdb1>] copy_pmd_range mm/memory.c:1007 [inline]
 [<ffffffff8149bdb1>] copy_pud_range mm/memory.c:1039 [inline]
 [<ffffffff8149bdb1>] copy_page_range+0x721/0x1480 mm/memory.c:1101
 [<ffffffff8112df03>] dup_mmap kernel/fork.c:517 [inline]
 [<ffffffff8112df03>] dup_mm kernel/fork.c:985 [inline]
 [<ffffffff8112df03>] copy_mm kernel/fork.c:1039 [inline]
 [<ffffffff8112df03>] copy_process+0x3f03/0x63f0 kernel/fork.c:1507
 [<ffffffff81130806>] _do_fork+0x146/0xe20 kernel/fork.c:1788
 [<ffffffff811315b7>] SYSC_clone kernel/fork.c:1899 [inline]
 [<ffffffff811315b7>] SyS_clone+0x37/0x50 kernel/fork.c:1893
 [<ffffffff81006d94>] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline]
 [<ffffffff81006d94>] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460
 [<ffffffff838cc003>] sysenter_flags_fixed+0xd/0x1a
Code: e8 71 b8 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 3a b8 e4 ff 48 8d 7b 20 
RIP  [<ffffffff815086f5>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
RIP  [<ffffffff815086f5>] PageHead include/linux/page-flags.h:396 [inline]
RIP  [<ffffffff815086f5>] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968
 RSP <ffff8800b29ff988>
CR2: ffffeafffd7b8000
---[ end trace 10c53d49c5b60c5f ]---