loop2: detected capacity change from 0 to 190
syz-executor.2: attempt to access beyond end of device
loop2: rw=0, sector=2040, nr_sectors = 8 limit=190
ntfs: (device loop2): ntfs_end_buffer_async_read(): Buffer I/O error, logical block 0xff.
=====================================================
BUG: KMSAN: uninit-value in post_read_mst_fixup+0xab8/0xb70 fs/ntfs/mst.c:39
 post_read_mst_fixup+0xab8/0xb70 fs/ntfs/mst.c:39
 ntfs_end_buffer_async_read+0xbb8/0x1a70 fs/ntfs/aops.c:133
 end_bio_bh_io_sync+0x130/0x1d0 fs/buffer.c:2775
 bio_endio+0xb17/0xb70 block/bio.c:1603
 submit_bio_noacct+0x230/0x2840 block/blk-core.c:816
 submit_bio+0x171/0x1c0 block/blk-core.c:842
 submit_bh_wbc+0x7de/0x850 fs/buffer.c:2821
 submit_bh+0x26/0x30 fs/buffer.c:2826
 ntfs_read_block fs/ntfs/aops.c:339 [inline]
 ntfs_read_folio+0x364b/0x3930 fs/ntfs/aops.c:430
 filemap_read_folio+0xce/0x370 mm/filemap.c:2323
 do_read_cache_folio+0x3b4/0x11e0 mm/filemap.c:3700
 do_read_cache_page mm/filemap.c:3766 [inline]
 read_cache_page+0x63/0x1c0 mm/filemap.c:3775
 read_mapping_page include/linux/pagemap.h:871 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 check_mft_mirror fs/ntfs/super.c:1117 [inline]
 load_system_files+0x985/0x97b0 fs/ntfs/super.c:1780
 ntfs_fill_super+0x307e/0x45d0 fs/ntfs/super.c:2900
 mount_bdev+0x38f/0x510 fs/super.c:1663
 ntfs_mount+0x4d/0x60 fs/ntfs/super.c:3057
 legacy_get_tree+0x110/0x290 fs/fs_context.c:662
 vfs_get_tree+0xa5/0x520 fs/super.c:1784
 do_new_mount+0x68d/0x1550 fs/namespace.c:3341
 path_mount+0x73d/0x1f20 fs/namespace.c:3668
 do_mount fs/namespace.c:3681 [inline]
 __do_sys_mount fs/namespace.c:3887 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3864
 __x64_sys_mount+0xe4/0x140 fs/namespace.c:3864
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Uninit was created at:
 __alloc_pages+0x9a4/0xe00 mm/page_alloc.c:4591
 alloc_pages_mpol+0x62b/0x9d0 mm/mempolicy.c:2133
 alloc_pages mm/mempolicy.c:2204 [inline]
 folio_alloc+0x1da/0x380 mm/mempolicy.c:2211
 filemap_alloc_folio+0xa5/0x430 mm/filemap.c:974
 do_read_cache_folio+0x163/0x11e0 mm/filemap.c:3664
 do_read_cache_page mm/filemap.c:3766 [inline]
 read_cache_page+0x63/0x1c0 mm/filemap.c:3775
 read_mapping_page include/linux/pagemap.h:871 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 check_mft_mirror fs/ntfs/super.c:1117 [inline]
 load_system_files+0x985/0x97b0 fs/ntfs/super.c:1780
 ntfs_fill_super+0x307e/0x45d0 fs/ntfs/super.c:2900
 mount_bdev+0x38f/0x510 fs/super.c:1663
 ntfs_mount+0x4d/0x60 fs/ntfs/super.c:3057
 legacy_get_tree+0x110/0x290 fs/fs_context.c:662
 vfs_get_tree+0xa5/0x520 fs/super.c:1784
 do_new_mount+0x68d/0x1550 fs/namespace.c:3341
 path_mount+0x73d/0x1f20 fs/namespace.c:3668
 do_mount fs/namespace.c:3681 [inline]
 __do_sys_mount fs/namespace.c:3887 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3864
 __x64_sys_mount+0xe4/0x140 fs/namespace.c:3864
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

CPU: 0 PID: 5498 Comm: syz-executor.2 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
=====================================================