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f2fs: avoid unneeded lookup when xattr name length is too long

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In f2fs_setxattr we have limit this attribute name length, so we should also
check it in f2fs_getxattr to avoid useless lookup caused by invalid name length.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Chao Yu 2014-03-22 14:59:45 +08:00 committed by Jaegeuk Kim
parent df0f8dc0e1
commit 6e452d69d4
1 changed files with 2 additions and 0 deletions
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2
fs/f2fs/xattr.c
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@ -407,6 +407,8 @@ int f2fs_getxattr(struct inode *inode, int name_index, const char *name,
if (name == NULL)
return -EINVAL;
name_len = strlen(name);
if (name_len > F2FS_NAME_LEN)
return -ERANGE;
base_addr = read_all_xattrs(inode, NULL);
if (!base_addr)