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| author | Chao Yu <chao2.yu@samsung.com> | 2014-03-22 14:59:45 +0800 |
|---|---|---|
| committer | Ziyan <jaraidaniel@gmail.com> | 2015-05-02 14:36:40 +0200 |
| commit | 4a1d6c2bdbf9f1afea362446c470e5e2487bdb88 (patch) | |
| tree | 96033e63dd56c76e49a2bea23184ef202ad394ca /fs | |
| parent | 9c312174602bf1cf448d847d5633215e94a090fc (diff) | |
| download | kernel_samsung_tuna-4a1d6c2bdbf9f1afea362446c470e5e2487bdb88.zip kernel_samsung_tuna-4a1d6c2bdbf9f1afea362446c470e5e2487bdb88.tar.gz kernel_samsung_tuna-4a1d6c2bdbf9f1afea362446c470e5e2487bdb88.tar.bz2 | |
f2fs: avoid unneeded lookup when xattr name length is too long
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/xattr.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index acd7158..359a467 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -425,6 +425,8 @@ 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) |