Messages in this thread Patch in this message | | | From | Namjae Jeon <> | Subject | [PATCH 2/2] fat: Fix bug in enforcing Long File Name length. | Date | Fri, 2 Mar 2012 20:16:45 -0500 |
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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.
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) -- 1.7.5.4
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