Fix UTF8StringNormalize overrun on zero-length string

Detected by valgrind

diff --git a/servers/slapd/schema_init.c b/servers/slapd/schema_init.c
index da2274c1b6193e15b529bfce19b1876e718da34c..c2e79d0e0b2cff682fed8015ebf47dcde8bd882f 100644 (file)
--- a/servers/slapd/schema_init.c
+++ b/servers/slapd/schema_init.c
@@ -1853,7 +1853,7 @@ UTF8StringNormalize(
                }
                nvalue.bv_val[nvalue.bv_len] = '\0';
 
-       } else {
+       } else if ( nvalue.bv_len )  {
                /* string of all spaces is treated as one space */
                nvalue.bv_val[0] = ' ';
                nvalue.bv_val[1] = '\0';