Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [f2fs-dev] [PATCH 2/2] f2fs: avoid unneeded lookup when xattr name length is too long | Date | Sat, 22 Mar 2014 14:59:45 +0800 |
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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> --- fs/f2fs/xattr.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 0121e45..503c245 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -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) -- 1.7.9.5
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