X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fidmapd%2Fidmapd.c;h=6b5971cad526aa86e472937f8af9492fb323fb45;hp=355c6e100c28c251c768cc8e8bb4ff2f23119f33;hb=bcd0fcaf0966c546da5043be700587f73174ae25;hpb=58ddd1faed90c83abad80ab7f460976cc0c0a213

diff --git a/utils/idmapd/idmapd.c b/utils/idmapd/idmapd.c
index 355c6e1..6b5971c 100644
--- a/utils/idmapd/idmapd.c
+++ b/utils/idmapd/idmapd.c
@@ -848,7 +848,7 @@ validateascii(char *string, u_int32_t len)
 			return (-1);
 	}
 
-	if (string[i] != '\0')
+	if ((i >= len) || string[i] != '\0')
 		return (-1);
 
 	return (i + 1);