ntfs: (device loop5): ntfs_end_buffer_async_read(): Buffer I/O error, logical block 0x4002.
syz-executor.5: attempt to access beyond end of device
loop5: rw=0, sector=32774, nr_sectors = 2 limit=4096
ntfs: (device loop5): ntfs_end_buffer_async_read(): Buffer I/O error, logical block 0x4003.
=====================================================
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+0xdb7/0x1760 fs/ntfs/aops.c:133
 end_bio_bh_io_sync+0x130/0x1d0 fs/buffer.c:2655
 bio_endio+0xb1d/0xb80 block/bio.c:1615
 submit_bio_noacct+0x4d6/0x2810 block/blk-core.c:809
 submit_bio+0x223/0x270 block/blk-core.c:838
 submit_bh_wbc+0x775/0x7e0 fs/buffer.c:2702
 submit_bh+0x26/0x30 fs/buffer.c:2707
 ntfs_read_block fs/ntfs/aops.c:345 [inline]
 ntfs_read_folio+0x377e/0x3be0 fs/ntfs/aops.c:436
 filemap_read_folio+0xd4/0x390 mm/filemap.c:2426
 do_read_cache_folio+0x53f/0xc30 mm/filemap.c:3554
 do_read_cache_page mm/filemap.c:3596 [inline]
 read_cache_page+0x63/0x260 mm/filemap.c:3605
 read_mapping_page include/linux/pagemap.h:755 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 check_mft_mirror fs/ntfs/super.c:1109 [inline]
 load_system_files+0x994/0x9790 fs/ntfs/super.c:1772
 ntfs_fill_super+0x307f/0x45d0 fs/ntfs/super.c:2892
 mount_bdev+0x50e/0x840 fs/super.c:1359
 ntfs_mount+0x4d/0x60 fs/ntfs/super.c:3049
 legacy_get_tree+0x110/0x290 fs/fs_context.c:610
 vfs_get_tree+0xa5/0x500 fs/super.c:1489
 do_new_mount+0x69a/0x1580 fs/namespace.c:3145
 path_mount+0x725/0x1ec0 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount+0x734/0x840 fs/namespace.c:3674
 __ia32_sys_mount+0xe3/0x150 fs/namespace.c:3674
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 __alloc_pages+0x9f6/0xe90 mm/page_alloc.c:5572
 alloc_pages_preferred_many mm/mempolicy.c:2146 [inline]
 alloc_pages+0x467/0xd80 mm/mempolicy.c:2284
 folio_alloc+0x42/0x120 mm/mempolicy.c:2297
 filemap_alloc_folio+0xb2/0x460 mm/filemap.c:972
 do_read_cache_folio+0x310/0xc30 mm/filemap.c:3518
 do_read_cache_page mm/filemap.c:3596 [inline]
 read_cache_page+0x63/0x260 mm/filemap.c:3605
 read_mapping_page include/linux/pagemap.h:755 [inline]
 ntfs_map_page fs/ntfs/aops.h:75 [inline]
 check_mft_mirror fs/ntfs/super.c:1109 [inline]
 load_system_files+0x994/0x9790 fs/ntfs/super.c:1772
 ntfs_fill_super+0x307f/0x45d0 fs/ntfs/super.c:2892
 mount_bdev+0x50e/0x840 fs/super.c:1359
 ntfs_mount+0x4d/0x60 fs/ntfs/super.c:3049
 legacy_get_tree+0x110/0x290 fs/fs_context.c:610
 vfs_get_tree+0xa5/0x500 fs/super.c:1489
 do_new_mount+0x69a/0x1580 fs/namespace.c:3145
 path_mount+0x725/0x1ec0 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount+0x734/0x840 fs/namespace.c:3674
 __ia32_sys_mount+0xe3/0x150 fs/namespace.c:3674
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

CPU: 0 PID: 6938 Comm: syz-executor.5 Not tainted 6.2.0-syzkaller-81152-g97e36f4aa06f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
=====================================================