Index: contrib/ldns/dnssec_zone.c
===================================================================
--- contrib/ldns/dnssec_zone.c
+++ contrib/ldns/dnssec_zone.c
@@ -701,6 +701,7 @@
 		newzone = NULL;
 	} else {
 		ldns_dnssec_zone_free(newzone);
+		newzone = NULL;
 	}
 
 error:
Index: contrib/ldns/host2str.c
===================================================================
--- contrib/ldns/host2str.c
+++ contrib/ldns/host2str.c
@@ -1088,6 +1088,7 @@
                         if(!gateway_data)
                                 return LDNS_STATUS_MEM_ERR;
 			if (ldns_rdf_size(rdf) < offset + LDNS_IP4ADDRLEN) {
+				LDNS_FREE(gateway_data);
 				return LDNS_STATUS_ERR;
 			}
 			memcpy(gateway_data, &data[offset], LDNS_IP4ADDRLEN);
@@ -1104,6 +1105,7 @@
                         if(!gateway_data)
                                 return LDNS_STATUS_MEM_ERR;
 			if (ldns_rdf_size(rdf) < offset + LDNS_IP6ADDRLEN) {
+				LDNS_FREE(gateway_data);
 				return LDNS_STATUS_ERR;
 			}
 			memcpy(gateway_data, &data[offset], LDNS_IP6ADDRLEN);
Index: contrib/ldns/radix.c
===================================================================
--- contrib/ldns/radix.c
+++ contrib/ldns/radix.c
@@ -1120,12 +1120,15 @@
 		if (array->len - common_len > 1) {
 			if (!ldns_radix_prefix_remainder(common_len+1,
 				array->str, array->len, &s1, &l1)) {
+				LDNS_FREE(common);
 				return 0;
 			}
 		}
 		if (strlen_to_add - common_len > 1) {
 			if (!ldns_radix_prefix_remainder(common_len+1,
 				str_to_add, strlen_to_add, &s2, &l2)) {
+				LDNS_FREE(common);
+				LDNS_FREE(s1);
 				return 0;
 			}
 		}
Index: contrib/ldns/resolver.c
===================================================================
--- contrib/ldns/resolver.c
+++ contrib/ldns/resolver.c
@@ -766,6 +766,7 @@
 				/* default domain dname */
 				gtr = ldns_fget_token_l(myfp, word, LDNS_PARSE_NORMAL, 0, line_nr);
 				if (gtr == 0) {
+					ldns_resolver_deep_free(r);
 					if(!fp) fclose(myfp);
 					return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
 				}
@@ -788,6 +789,7 @@
 				/* NS aaaa or a record */
 				gtr = ldns_fget_token_l(myfp, word, LDNS_PARSE_NORMAL, 0, line_nr);
 				if (gtr == 0) {
+					ldns_resolver_deep_free(r);
 					if(!fp) fclose(myfp);
 					return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
 				}
Index: contrib/ldns/str2host.c
===================================================================
--- contrib/ldns/str2host.c
+++ contrib/ldns/str2host.c
@@ -445,6 +445,7 @@
 		*++dp = ch;
 	}
 	if (! str) {
+	        LDNS_FREE(data);
 		return LDNS_STATUS_SYNTAX_BAD_ESCAPE;
 	}
 	length = (size_t)(dp - data);
@@ -1456,6 +1457,7 @@
 		}
 	}
 	if (! str) {
+	        LDNS_FREE(data);
 		return LDNS_STATUS_SYNTAX_BAD_ESCAPE;
 	}
 	length = (size_t)(dp - data);