BUG: unable to handle kernel paging request at ffffeafff9920000 IP: [] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline] IP: [] PageHead include/linux/page-flags.h:473 [inline] IP: [] copy_huge_pmd+0x260/0x550 mm/huge_memory.c:854 PGD 0 [ 155.590792] Oops: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 10781 Comm: syz-executor3 Not tainted 4.9.122-g54068d6 #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801baff3000 task.stack: ffff8801a3ba0000 RIP: 0010:[] [] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline] RIP: 0010:[] [] PageHead include/linux/page-flags.h:473 [inline] RIP: 0010:[] [] copy_huge_pmd+0x260/0x550 mm/huge_memory.c:854 RSP: 0018:ffff8801a3ba79d8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffeafff9920000 RCX: ffffc90003312000 RDX: 1ffffd5fff324000 RSI: ffffffff8154af65 RDI: 00003ffe648001e0 RBP: ffff8801a3ba7a30 R08: ffff8801baff3960 R09: 0000000000000001 R10: ffff8801baff3000 R11: 1ffff100375fe727 R12: ffff8801bb66b9c0 R13: ffff8801d3d62800 R14: 00003ffe648001e0 R15: ffff8801ca7ec800 FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f57a6b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffeafff9920000 CR3: 00000001ba7d0000 CR4: 00000000001606f0 Stack: 00003ffe648001e0 ffff8801d912c318 ffff8801bfebecb8 ffffea0006f8d400 00003fffffe00000 0000000020000000 ffff8801ca7ec800 ffff8801ca7ec800 00000001ca7ec067 000000003fffffff dffffc0000000000 ffff8801a3ba7bf8 Call Trace: [] copy_pmd_range mm/memory.c:1003 [inline] [] copy_pud_range mm/memory.c:1035 [inline] [] copy_page_range+0x71e/0x19f0 mm/memory.c:1097 [] dup_mmap kernel/fork.c:674 [inline] [] dup_mm kernel/fork.c:1156 [inline] [] copy_mm kernel/fork.c:1210 [inline] [] copy_process.part.51+0x3d6b/0x6330 kernel/fork.c:1678 [] copy_process kernel/fork.c:1503 [inline] [] _do_fork+0x1b0/0xdd0 kernel/fork.c:1963 [] SYSC_clone kernel/fork.c:2075 [inline] [] SyS_clone+0x37/0x50 kernel/fork.c:2069 [] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline] [] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387 [] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137 Code: 00 ea ff ff 48 23 45 c8 48 c1 e8 06 48 8d 1c 10 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 0f 85 4c 02 00 00 <48> 8b 03 f6 c4 40 0f 84 c7 01 00 00 e8 bf 5d e1 ff 48 8d 7b 20 RIP [] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline] RIP [] PageHead include/linux/page-flags.h:473 [inline] RIP [] copy_huge_pmd+0x260/0x550 mm/huge_memory.c:854 RSP CR2: ffffeafff9920000 ---[ end trace 967c859ef0b387f4 ]---