loop2: detected capacity change from 0 to 4096 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 321a2067 P4D 321a2067 PUD 289a1067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3465 Comm: syz-executor.2 Not tainted 6.3.0-rc5-syzkaller-00032-g99ddf2254feb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000d03f618 EFLAGS: 00010293 RAX: ffffffff81ba27e1 RBX: 0000000000000000 RCX: ffff88801ca857c0 RDX: 0000000000000000 RSI: ffffea00022aff40 RDI: 0000000000000000 RBP: ffffc9000d03f6f0 R08: dffffc0000000000 R09: fffff94000455fe9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea00022aff40 R13: 1ffffd4000455fe9 R14: 0000000000000000 R15: ffffea00022aff48 FS: 00007f6d2a3c8700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000002a33e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: filemap_read_folio+0x19d/0x7a0 mm/filemap.c:2424 do_read_cache_folio+0x2ee/0x820 mm/filemap.c:3683 do_read_cache_page+0x32/0x230 mm/filemap.c:3749 read_mapping_page include/linux/pagemap.h:769 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] ntfs_check_logfile+0x3e1/0x28b0 fs/ntfs/logfile.c:532 load_and_check_logfile+0x6f/0xd0 fs/ntfs/super.c:1223 load_system_files+0x32fb/0x4840 fs/ntfs/super.c:1949 ntfs_fill_super+0x19b4/0x2bd0 fs/ntfs/super.c:2900 mount_bdev+0x271/0x3a0 fs/super.c:1380 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3042 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6d2968d69a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6d2a3c7f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001f1ba RCX: 00007f6d2968d69a RDX: 000000002001f1c0 RSI: 000000002001f200 RDI: 00007f6d2a3c7fe0 RBP: 00007f6d2a3c8020 R08: 00007f6d2a3c8020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000000002001f1c0 R13: 000000002001f200 R14: 00007f6d2a3c7fe0 R15: 00000000200000c0 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000d03f618 EFLAGS: 00010293 RAX: ffffffff81ba27e1 RBX: 0000000000000000 RCX: ffff88801ca857c0 RDX: 0000000000000000 RSI: ffffea00022aff40 RDI: 0000000000000000 RBP: ffffc9000d03f6f0 R08: dffffc0000000000 R09: fffff94000455fe9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea00022aff40 R13: 1ffffd4000455fe9 R14: 0000000000000000 R15: ffffea00022aff48 FS: 00007f6d2a3c8700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000002a33e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400