=====================================================
BUG: KMSAN: uninit-value in memcmp lib/string.c:681 [inline]
BUG: KMSAN: uninit-value in bcmp+0xc3/0x1c0 lib/string.c:713
 memcmp lib/string.c:681 [inline]
 bcmp+0xc3/0x1c0 lib/string.c:713
 ntfs_init_from_boot fs/ntfs3/super.c:860 [inline]
 ntfs_fill_super+0xda5/0x7d70 fs/ntfs3/super.c:1141
 get_tree_bdev+0x835/0xcc0 fs/super.c:1318
 ntfs_fs_get_tree+0x34/0x40 fs/ntfs3/super.c:1647
 vfs_get_tree+0xa5/0x500 fs/super.c:1519
 do_new_mount+0x68d/0x1550 fs/namespace.c:3335
 path_mount+0x73d/0x1f20 fs/namespace.c:3662
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3861
 __ia32_sys_mount+0xe3/0x150 fs/namespace.c:3861
 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+0x9a4/0xe00 mm/page_alloc.c:4500
 alloc_pages+0xd01/0x1040
 folio_alloc+0x42/0x120 mm/mempolicy.c:2289
 filemap_alloc_folio+0xa5/0x430 mm/filemap.c:979
 __filemap_get_folio+0x908/0x13a0 mm/filemap.c:1933
 ext4_da_write_begin+0x7f8/0xec0 fs/ext4/inode.c:2883
 generic_perform_write+0x3fb/0xc50 mm/filemap.c:3923
 ext4_buffered_write_iter+0x564/0xaa0 fs/ext4/file.c:299
 ext4_file_write_iter+0x20f/0x36b0
 __kernel_write_iter+0x323/0xa40 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x593/0xce0 fs/coredump.c:915
 elf_core_dump+0x59e8/0x5c60 fs/binfmt_elf.c:2142
 do_coredump+0x32c8/0x4920 fs/coredump.c:764
 get_signal+0x2185/0x2bc0 kernel/signal.c:2863
 arch_do_signal_or_restart+0x4f/0x920 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop+0xe8/0x320 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x163/0x220 kernel/entry/common.c:204
 irqentry_exit_to_user_mode+0xd/0x20 kernel/entry/common.c:310
 irqentry_exit+0x16/0x40 kernel/entry/common.c:413
 exc_page_fault+0x494/0x680 arch/x86/mm/fault.c:1545
 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:570

CPU: 1 PID: 21264 Comm: syz-executor.3 Not tainted 6.5.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
=====================================================