syz.0.46: attempt to access beyond end of device
loop0: rw=0, sector=106, nr_sectors = 2 limit=64
ntfs3(loop0): failed to read volume at offset 0xd400
ntfs3(loop0): failed to read block 29d
=====================================================
BUG: KMSAN: uninit-value in ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline]
BUG: KMSAN: uninit-value in ntfs_read_bh+0x238/0xc00 fs/ntfs3/fsntfs.c:1297
 ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline]
 ntfs_read_bh+0x238/0xc00 fs/ntfs3/fsntfs.c:1297
 mi_read+0x393/0xe10 fs/ntfs3/record.c:133
 mi_get+0x181/0x560 fs/ntfs3/record.c:85
 ni_load_mi_ex+0x23f/0x720 fs/ntfs3/frecord.c:150
 ni_load_mi fs/ntfs3/frecord.c:182 [inline]
 ni_enum_attr_ex+0x2c9/0x590 fs/ntfs3/frecord.c:273
 attr_insert_range+0x2597/0x2a70 fs/ntfs3/attrib.c:2563
 ntfs_fallocate+0x15fc/0x2720 fs/ntfs3/file.c:635
 vfs_fallocate+0x946/0xaa0 fs/open.c:342
 ksys_fallocate fs/open.c:366 [inline]
 __do_sys_fallocate fs/open.c:371 [inline]
 __se_sys_fallocate fs/open.c:369 [inline]
 __x64_sys_fallocate+0x14f/0x290 fs/open.c:369
 x64_sys_call+0x2cff/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:286
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_frozen_pages_noprof+0x689/0xf00 mm/page_alloc.c:5171
 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2416
 alloc_frozen_pages_noprof mm/mempolicy.c:2487 [inline]
 alloc_pages_noprof mm/mempolicy.c:2507 [inline]
 folio_alloc_noprof+0x109/0x360 mm/mempolicy.c:2517
 filemap_alloc_folio_noprof+0x9d/0x420 mm/filemap.c:1007
 __filemap_get_folio+0xb45/0x1930 mm/filemap.c:1981
 grow_dev_folio fs/buffer.c:1050 [inline]
 grow_buffers fs/buffer.c:1116 [inline]
 __getblk_slow fs/buffer.c:1134 [inline]
 bdev_getblk+0x25a/0xad0 fs/buffer.c:1461
 __bread_gfp+0x99/0x690 fs/buffer.c:1515
 sb_bread_unmovable include/linux/buffer_head.h:352 [inline]
 ntfs_bread fs/ntfs3/fsntfs.c:1033 [inline]
 ntfs_read_run_nb+0x6d5/0x1810 fs/ntfs3/fsntfs.c:1225
 ntfs_read_bh+0x6a/0xc00 fs/ntfs3/fsntfs.c:1293
 mi_read+0x393/0xe10 fs/ntfs3/record.c:133
 mi_format_new+0x21f/0x910 fs/ntfs3/record.c:434
 ntfs_new_inode+0xba/0x2a0 fs/ntfs3/fsntfs.c:1676
 ntfs_create_inode+0x9b9/0x56e0 fs/ntfs3/inode.c:1300
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x2d44/0x6760 fs/namei.c:4043
 do_filp_open+0x280/0x660 fs/namei.c:4073
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1461
 x64_sys_call+0x3bcc/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 7731 Comm: syz.0.46 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
=====================================================