File bind-CVE-2018-5745.patch of Package bind.19428

Index: bind-9.9.9-P1/lib/dns/include/dst/dst.h
===================================================================
--- bind-9.9.9-P1.orig/lib/dns/include/dst/dst.h
+++ bind-9.9.9-P1/lib/dns/include/dst/dst.h
@@ -71,8 +71,7 @@ typedef struct dst_context 	dst_context_
 #define DST_ALG_HMACSHA512	165	/* XXXMPA */
 #define DST_ALG_INDIRECT	252
 #define DST_ALG_PRIVATE		254
-#define DST_ALG_EXPAND		255
-#define DST_MAX_ALGS		255
+#define DST_MAX_ALGS		256
 
 /*% A buffer of this size is large enough to hold any key */
 #define DST_KEY_MAXSIZE		1280
Index: bind-9.9.9-P1/lib/dns/zone.c
===================================================================
--- bind-9.9.9-P1.orig/lib/dns/zone.c
+++ bind-9.9.9-P1/lib/dns/zone.c
@@ -3400,9 +3400,10 @@ compute_tag(dns_name_t *name, dns_rdata_
 			     dns_rdatatype_dnskey, dnskey, &buffer);
 
 	result = dns_dnssec_keyfromrdata(name, &rdata, mctx, &dstkey);
-	if (result == ISC_R_SUCCESS)
+	if (result == ISC_R_SUCCESS) {
 		*tag = dst_key_id(dstkey);
-	dst_key_free(&dstkey);
+		dst_key_free(&dstkey);
+	}
 
 	return (result);
 }