From: Alan T. DeKok <aland@freeradius.org>
Date: Tue, 15 Dec 2009 15:01:20 +0000 (+0100)
Subject: Ensure that len > 0
X-Git-Tag: release_2_1_8~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1c318d09bf16162f5533f65192269a3dcc170f0;p=thirdparty%2Ffreeradius-server.git

Ensure that len > 0
---

diff --git a/src/lib/valuepair.c b/src/lib/valuepair.c
index 2f2c73c7e65..f6f4abcacfc 100644
--- a/src/lib/valuepair.c
+++ b/src/lib/valuepair.c
@@ -1626,7 +1626,7 @@ VALUE_PAIR *pairread(const char **ptr, FR_TOKEN *eol)
 	/*
 	 *	We may have Foo-Bar:= stuff, so back up.
 	 */
-	if (attr[len - 1] == ':') {
+	if ((len > 0) && (attr[len - 1] == ':')) {
 		p--;
 		len--;
 	}