From: Ilya Ponetayev i.ponetaev@ndmsystems.com
[ Upstream commit db415f7aae07cadcabd5d2a659f8ad825c905299 ]
On-disk format for name_hash field is LE, so it must be explicitly transformed on BE system for proper result.
Fixes: 370e812b3ec1 ("exfat: add nls operations") Cc: stable@vger.kernel.org # v5.7 Signed-off-by: Chen Minqiang ptpt52@gmail.com Signed-off-by: Ilya Ponetayev i.ponetaev@ndmsystems.com Reviewed-by: Sungjong Seo sj1557.seo@samsung.com Signed-off-by: Namjae Jeon namjae.jeon@samsung.com --- fs/exfat/nls.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/exfat/nls.c b/fs/exfat/nls.c index 6d1c3ae130ff..a647f8127f3b 100644 --- a/fs/exfat/nls.c +++ b/fs/exfat/nls.c @@ -495,7 +495,7 @@ static int exfat_utf8_to_utf16(struct super_block *sb, struct exfat_uni_name *p_uniname, int *p_lossy) { int i, unilen, lossy = NLS_NAME_NO_LOSSY; - unsigned short upname[MAX_NAME_LENGTH + 1]; + __le16 upname[MAX_NAME_LENGTH + 1]; unsigned short *uniname = p_uniname->name;
WARN_ON(!len); @@ -523,7 +523,7 @@ static int exfat_utf8_to_utf16(struct super_block *sb, exfat_wstrchr(bad_uni_chars, *uniname)) lossy |= NLS_NAME_LOSSY;
- upname[i] = exfat_toupper(sb, *uniname); + upname[i] = cpu_to_le16(exfat_toupper(sb, *uniname)); uniname++; }
@@ -614,7 +614,7 @@ static int exfat_nls_to_ucs2(struct super_block *sb, struct exfat_uni_name *p_uniname, int *p_lossy) { int i = 0, unilen = 0, lossy = NLS_NAME_NO_LOSSY; - unsigned short upname[MAX_NAME_LENGTH + 1]; + __le16 upname[MAX_NAME_LENGTH + 1]; unsigned short *uniname = p_uniname->name; struct nls_table *nls = EXFAT_SB(sb)->nls_io;
@@ -628,7 +628,7 @@ static int exfat_nls_to_ucs2(struct super_block *sb, exfat_wstrchr(bad_uni_chars, *uniname)) lossy |= NLS_NAME_LOSSY;
- upname[unilen] = exfat_toupper(sb, *uniname); + upname[unilen] = cpu_to_le16(exfat_toupper(sb, *uniname)); uniname++; unilen++; }