BUG: unable to handle kernel paging request at ffffeafff91f0000 IP: [] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline] IP: [] PageHead include/linux/page-flags.h:396 [inline] IP: [] 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: 0 PID: 6168 Comm: syz-executor0 Not tainted 4.4.150-g5541782 #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d46b3000 task.stack: ffff8801d4748000 RIP: 0010:[] [] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline] RIP: 0010:[] [] PageHead include/linux/page-flags.h:396 [inline] RIP: 0010:[] [] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968 RSP: 0018:ffff8801d474f988 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffeafff91f0000 RCX: ffffc90000e0d000 RDX: 1ffffd5fff23e000 RSI: ffffffff815091bf RDI: 00003ffe47c001e0 RBP: ffff8801d474f9f8 R08: ffffffff853f8520 R09: 0000000000000000 R10: 0000000000000001 R11: ffff8801d46b3000 R12: ffff8801c7fdc800 R13: ffff8801d3c9c000 R14: ffffea0000000000 R15: 00003ffe47c001e0 FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f57fab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffeafff91f0000 CR3: 00000001d4a0c000 CR4: 00000000001606f0 Stack: 00003ffe47c001e0 0000000000000080 ffff8800b9535e00 ffff8801d28f3bb0 ffff8801d93318f0 ffff8800b6813800 ffffea0002b6ee00 00000000d46b38e0 0000000020000000 ffff8801c7fdc800 ffff8801c7fdc800 dffffc0000000000 Call Trace: [] copy_pmd_range mm/memory.c:1007 [inline] [] copy_pud_range mm/memory.c:1039 [inline] [] copy_page_range+0x721/0x1480 mm/memory.c:1101 [] dup_mmap kernel/fork.c:517 [inline] [] dup_mm kernel/fork.c:985 [inline] [] copy_mm kernel/fork.c:1039 [inline] [] copy_process+0x3f03/0x63f0 kernel/fork.c:1507 [] _do_fork+0x146/0xe20 kernel/fork.c:1788 [] SYSC_clone kernel/fork.c:1899 [inline] [] SyS_clone+0x37/0x50 kernel/fork.c:1893 [] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline] [] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460 [] sysenter_flags_fixed+0xd/0x1a 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 [] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline] RIP [] PageHead include/linux/page-flags.h:396 [inline] RIP [] copy_huge_pmd+0x235/0x710 mm/huge_memory.c:968 RSP CR2: ffffeafff91f0000 ---[ end trace 47279b921f9372fe ]---