ntfs3's dmask and fmask mount options are 16-bit quantities but are displayed as 1-extended 32-bit values in /proc/mounts. Fix this by circumventing integer promotion. This change is not eligible for stable@. Please Reply-To-All. Thanks and have a great day. Marc. Signed-off-by: Marc Aurèle La France <tsi@xxxxxxxxxx> diff -aNpRruz -X /etc/diff.excludes linux-5.17.1/fs/ntfs3/super.c devel-5.17.1/fs/ntfs3/super.c --- linux-5.17.1/fs/ntfs3/super.c 2022-03-28 02:03:22.000000000 -0600 +++ devel-5.17.1/fs/ntfs3/super.c 2022-03-28 07:14:10.799008309 -0600 @@ -518,9 +518,9 @@ static int ntfs_show_options(struct seq_file *m, struct dentry *root) seq_printf(m, ",gid=%u", from_kgid_munged(user_ns, opts->fs_gid)); if (opts->fmask) - seq_printf(m, ",fmask=%04o", ~opts->fs_fmask_inv); + seq_printf(m, ",fmask=%04o", opts->fs_fmask_inv ^ 0xffff); if (opts->dmask) - seq_printf(m, ",dmask=%04o", ~opts->fs_dmask_inv); + seq_printf(m, ",dmask=%04o", opts->fs_dmask_inv ^ 0xffff); if (opts->nls) seq_printf(m, ",iocharset=%s", opts->nls->charset); else