From: José Bollo <jose.bollo@open.eurogiciel.org>
Date: Tue, 17 Dec 2013 12:25:47 +0000 (+0100)
Subject: libsmack: fix a bug in validation of labels
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3700a074dc1c80ca185a35657843f9b278130223;p=framework%2Fsecurity%2Fsmack.git

libsmack: fix a bug in validation of labels

The function `get_label` didn't handle the characters below
' ' and above '~' correctly.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
---

diff --git a/libsmack/libsmack.c b/libsmack/libsmack.c
index a8672b6..913f04c 100644
--- a/libsmack/libsmack.c
+++ b/libsmack/libsmack.c
@@ -737,8 +737,9 @@ static inline ssize_t get_label(char *dest, const char *src)
 		return -1;
 
 	for (i = 0; i < (SMACK_LABEL_LEN + 1) && src[i]; i++) {
+		if (src[i] <= ' ' || src[i] > '~')
+			return -1;
 		switch (src[i]) {
-		case ' ':
 		case '/':
 		case '"':
 		case '\\':