ntfs3(loop2): failed to read volume at offset 0x2000
=====================================================
BUG: KMSAN: uninit-value in ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline]
BUG: KMSAN: uninit-value in ntfs_read_bh+0x1eb/0xde0 fs/ntfs3/fsntfs.c:1321
 ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline]
 ntfs_read_bh+0x1eb/0xde0 fs/ntfs3/fsntfs.c:1321
 mi_read+0x2d4/0xd50 fs/ntfs3/record.c:133
 mi_format_new+0x239/0x8f0 fs/ntfs3/record.c:434
 ntfs_new_inode+0xc2/0x2b0 fs/ntfs3/fsntfs.c:1700
 ntfs_create_inode+0x9ac/0x4f00 fs/ntfs3/inode.c:1312
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3651 [inline]
 open_last_lookups fs/namei.c:3750 [inline]
 path_openat+0x2ed8/0x6250 fs/namei.c:3986
 do_filp_open+0x268/0x600 fs/namei.c:4016
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_compat_sys_openat fs/open.c:1505 [inline]
 __se_compat_sys_openat fs/open.c:1503 [inline]
 __ia32_compat_sys_openat+0x298/0x300 fs/open.c:1503
 ia32_sys_call+0x2fb4/0x4180 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was stored to memory at:
 ntfs_read_run_nb+0x7d3/0x1110 fs/ntfs3/fsntfs.c:1256
 ntfs_read_bh+0x64/0xde0 fs/ntfs3/fsntfs.c:1317
 mi_read+0x2d4/0xd50 fs/ntfs3/record.c:133
 mi_format_new+0x239/0x8f0 fs/ntfs3/record.c:434
 ntfs_new_inode+0xc2/0x2b0 fs/ntfs3/fsntfs.c:1700
 ntfs_create_inode+0x9ac/0x4f00 fs/ntfs3/inode.c:1312
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3651 [inline]
 open_last_lookups fs/namei.c:3750 [inline]
 path_openat+0x2ed8/0x6250 fs/namei.c:3986
 do_filp_open+0x268/0x600 fs/namei.c:4016
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_compat_sys_openat fs/open.c:1505 [inline]
 __se_compat_sys_openat fs/open.c:1503 [inline]
 __ia32_compat_sys_openat+0x298/0x300 fs/open.c:1503
 ia32_sys_call+0x2fb4/0x4180 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 __alloc_frozen_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4763
 alloc_pages_mpol+0x4cd/0x890 mm/mempolicy.c:2270
 alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline]
 alloc_pages_noprof mm/mempolicy.c:2361 [inline]
 folio_alloc_noprof+0x1dc/0x350 mm/mempolicy.c:2371
 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1018
 __filemap_get_folio+0xb40/0x18e0 mm/filemap.c:1969
 grow_dev_folio fs/buffer.c:1039 [inline]
 grow_buffers fs/buffer.c:1105 [inline]
 __getblk_slow fs/buffer.c:1131 [inline]
 bdev_getblk+0x2c9/0xab0 fs/buffer.c:1431
 __bread_gfp+0x93/0x730 fs/buffer.c:1485
 sb_bread_unmovable include/linux/buffer_head.h:352 [inline]
 ntfs_bread fs/ntfs3/fsntfs.c:1029 [inline]
 ntfs_read_run_nb+0x6bf/0x1110 fs/ntfs3/fsntfs.c:1249
 ntfs_read_bh+0x64/0xde0 fs/ntfs3/fsntfs.c:1317
 mi_read+0x2d4/0xd50 fs/ntfs3/record.c:133
 mi_format_new+0x239/0x8f0 fs/ntfs3/record.c:434
 ntfs_new_inode+0xc2/0x2b0 fs/ntfs3/fsntfs.c:1700
 ntfs_create_inode+0x9ac/0x4f00 fs/ntfs3/inode.c:1312
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3651 [inline]
 open_last_lookups fs/namei.c:3750 [inline]
 path_openat+0x2ed8/0x6250 fs/namei.c:3986
 do_filp_open+0x268/0x600 fs/namei.c:4016
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_compat_sys_open fs/open.c:1496 [inline]
 __se_compat_sys_open fs/open.c:1494 [inline]
 __ia32_compat_sys_open+0x26c/0x2d0 fs/open.c:1494
 ia32_sys_call+0x6d2/0x4180 arch/x86/include/generated/asm/syscalls_32.h:6
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 0 UID: 0 PID: 7345 Comm: syz.2.366 Not tainted 6.14.0-rc7-syzkaller-00205-g586de92313fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
=====================================================