ntfs3: loop1: Different NTFS sector size (2048) and media sector size (512).
ntfs3: loop1: Mark volume as dirty due to NTFS errors
=====================================================
BUG: KMSAN: uninit-value in get_match_len fs/ntfs3/lznt.c:43 [inline]
BUG: KMSAN: uninit-value in longest_match_std+0x56b/0xe00 fs/ntfs3/lznt.c:64
 get_match_len fs/ntfs3/lznt.c:43 [inline]
 longest_match_std+0x56b/0xe00 fs/ntfs3/lznt.c:64
 compress_chunk fs/ntfs3/lznt.c:170 [inline]
 compress_lznt+0x41f/0xef0 fs/ntfs3/lznt.c:336
 ni_write_frame+0xf8f/0x1c80 fs/ntfs3/frecord.c:2839
 ntfs_compress_write+0x25ce/0x3c80 fs/ntfs3/file.c:1021
 ntfs_file_write_iter+0xa30/0xec0 fs/ntfs3/file.c:1119
 call_write_iter include/linux/fs.h:2120 [inline]
 iter_file_splice_write+0x11fa/0x1d30 fs/splice.c:743
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0x33d/0x7f0 fs/splice.c:1164
 splice_direct_to_actor+0x94b/0x1430 fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x1fd/0x340 fs/splice.c:1233
 do_sendfile+0x9aa/0x1920 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64+0x1f5/0x280 fs/read_write.c:1348
 __x64_sys_sendfile64+0xbd/0x110 fs/read_write.c:1348
 x64_sys_call+0x39e6/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598
 alloc_pages_mpol+0x299/0x990 mm/mempolicy.c:2264
 alloc_pages mm/mempolicy.c:2335 [inline]
 folio_alloc+0x1d0/0x230 mm/mempolicy.c:2342
 filemap_alloc_folio+0xa6/0x440 mm/filemap.c:984
 __filemap_get_folio+0xa10/0x14b0 mm/filemap.c:1926
 pagecache_get_page+0x4a/0x1a0 mm/folio-compat.c:93
 find_or_create_page include/linux/pagemap.h:759 [inline]
 ntfs_get_frame_pages+0xdc/0xa00 fs/ntfs3/file.c:820
 ntfs_compress_write+0x1bdc/0x3c80 fs/ntfs3/file.c:970
 ntfs_file_write_iter+0xa30/0xec0 fs/ntfs3/file.c:1119
 call_write_iter include/linux/fs.h:2120 [inline]
 iter_file_splice_write+0x11fa/0x1d30 fs/splice.c:743
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0x33d/0x7f0 fs/splice.c:1164
 splice_direct_to_actor+0x94b/0x1430 fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x1fd/0x340 fs/splice.c:1233
 do_sendfile+0x9aa/0x1920 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64+0x1f5/0x280 fs/read_write.c:1348
 __x64_sys_sendfile64+0xbd/0x110 fs/read_write.c:1348
 x64_sys_call+0x39e6/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 PID: 12072 Comm: syz-executor.1 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
=====================================================