ntfs: (device loop2): load_and_init_upcase(): Failed to load $UpCase from the volume. Using default. ntfs: volume version 3.1. BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 588c1067 P4D 588c1067 PUD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11450 Comm: syz.2.3089 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc90003c8f840 EFLAGS: 00010246 RAX: 1ffffffff142d8f9 RBX: ffffffff8a16c7c8 RCX: 0000000000080000 RDX: ffffc90003311000 RSI: ffffea0001c4a100 RDI: 0000000000000000 RBP: 0000000001100cca R08: dffffc0000000000 R09: fffffbfff1ad2dd6 R10: fffffbfff1ad2dd6 R11: 1ffffffff1ad2dd5 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffea0001c4a100 R15: ffff888061f40570 FS: 00007f27912a06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000007ad01000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_read_cache_page+0x8a1/0x1030 mm/filemap.c:-1 read_mapping_page include/linux/pagemap.h:515 [inline] ntfs_map_page+0x24/0x390 fs/ntfs/aops.h:75 ntfs_check_logfile+0x343/0x2f50 fs/ntfs/logfile.c:532 load_and_check_logfile+0x6f/0xd0 fs/ntfs/super.c:1215 load_system_files+0x3a29/0x5560 fs/ntfs/super.c:1941 ntfs_fill_super+0x19e0/0x2c90 fs/ntfs/super.c:2894 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3014 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f279303a38a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f279129fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f279129fef0 RCX: 00007f279303a38a RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007f279129feb0 RBP: 0000200000000000 R08: 00007f279129fef0 R09: 0000000000800808 R10: 0000000000800808 R11: 0000000000000246 R12: 0000200000000040 R13: 00007f279129feb0 R14: 000000000001ee99 R15: 0000200000002380 Modules linked in: CR2: 0000000000000000 ---[ end trace 901ea457c0a19e51 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc90003c8f840 EFLAGS: 00010246 RAX: 1ffffffff142d8f9 RBX: ffffffff8a16c7c8 RCX: 0000000000080000 RDX: ffffc90003311000 RSI: ffffea0001c4a100 RDI: 0000000000000000 RBP: 0000000001100cca R08: dffffc0000000000 R09: fffffbfff1ad2dd6 R10: fffffbfff1ad2dd6 R11: 1ffffffff1ad2dd5 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffea0001c4a100 R15: ffff888061f40570 FS: 00007f27912a06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000007ad01000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400