lkml.org 
[lkml]   [2012]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] fat: Fix bug in enforcing Long File Name length.
Date
 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


\
 
 \ /
  Last update: 2012-03-03 02:19    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean