ntfs3: loop0: Failed to load $Extend (-22).
ntfs3: loop0: Failed to initialize $Extend.
=====================================================
BUG: KMSAN: uninit-value in longest_match_std+0x5d9/0xe00 fs/ntfs3/lznt.c:60
 longest_match_std+0x5d9/0xe00 fs/ntfs3/lznt.c:60
 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:1030
 ntfs_file_write_iter+0xa30/0xec0 fs/ntfs3/file.c:1128
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xb2f/0x1550 fs/read_write.c:590
 ksys_pwrite64 fs/read_write.c:705 [inline]
 __do_sys_pwrite64 fs/read_write.c:715 [inline]
 __se_sys_pwrite64 fs/read_write.c:712 [inline]
 __x64_sys_pwrite64+0x2c5/0x3b0 fs/read_write.c:712
 x64_sys_call+0xc26/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:19
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_pages_noprof+0x9d6/0xe70 mm/page_alloc.c:4706
 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2265
 alloc_pages_noprof mm/mempolicy.c:2336 [inline]
 folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2343
 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1008
 __filemap_get_folio+0xa05/0x14b0 mm/filemap.c:1950
 pagecache_get_page+0x4a/0x1a0 mm/folio-compat.c:87
 find_or_create_page include/linux/pagemap.h:777 [inline]
 ntfs_get_frame_pages+0xdc/0xa00 fs/ntfs3/file.c:829
 ntfs_compress_write+0x1bdc/0x3c80 fs/ntfs3/file.c:979
 ntfs_file_write_iter+0xa30/0xec0 fs/ntfs3/file.c:1128
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xb2f/0x1550 fs/read_write.c:590
 ksys_pwrite64 fs/read_write.c:705 [inline]
 __do_sys_pwrite64 fs/read_write.c:715 [inline]
 __se_sys_pwrite64 fs/read_write.c:712 [inline]
 __x64_sys_pwrite64+0x2c5/0x3b0 fs/read_write.c:712
 x64_sys_call+0xc26/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:19
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 PID: 5049 Comm: syz-executor252 Not tainted 6.10.0-syzkaller-11185-g2c9b3512402e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
=====================================================