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SubjectRe: [PATCH 2/2] fat: Fix bug in enforcing Long File Name length.
Date
Namjae Jeon <linkinjeon@gmail.com> writes:

> Since '*outlen' is initialized to zero,it is currently possible to create a f ilename of length (FAT_LFN_LEN +1) when utf8 is not enabled.To enforce the FA T_LFN_LEN limit, we must perform one less iteration.

Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

> Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
> Signed-off-by: Ravishankar N <cyberax82@gmail.com>
> ---
> fs/fat/namei_vfat.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
> index aae3b4e..98ae804 100644
> --- a/fs/fat/namei_vfat.c
> +++ b/fs/fat/namei_vfat.c
> @@ -522,7 +522,7 @@ xlate_to_uni(const unsigned char *name, int len, unsigned char *outname,
> op = &outname[*outlen * sizeof(wchar_t)];
> } else {
> for (i = 0, ip = name, op = outname, *outlen = 0;
> - i < len && *outlen <= FAT_LFN_LEN;
> + i < len && *outlen < FAT_LFN_LEN;
> *outlen += 1) {
> if (escape && (*ip == ':')) {
> if (i > len - 5)

--
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>


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