upstream: Plug mem leak on error path. Coverity CID 405026, ok djm@.

OpenBSD-Commit-ID: 8212ca05d01966fb5e72205c592b2257708a2aac

diff --git a/dns.c b/dns.c
index 823951efa0a03cc6f7ca69d0e5f25b7b7d68624b..939241440777100233790cc5fa3409a06f85cbc8 100644 (file)
--- a/dns.c
+++ b/dns.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: dns.c,v 1.43 2023/02/10 04:56:30 djm Exp $ */
+/* $OpenBSD: dns.c,v 1.44 2023/03/10 04:06:21 dtucker Exp $ */
 
 /*
  * Copyright (c) 2003 Wesley Griffin. All rights reserved.
@@ -258,6 +258,7 @@ verify_host_key_dns(const char *hostname, struct sockaddr *address,
                if (!dns_read_key(&hostkey_algorithm, &dnskey_digest_type,
                    &hostkey_digest, &hostkey_digest_len, hostkey)) {
                        error("Error calculating key fingerprint.");
+                       free(dnskey_digest);
                        freerrset(fingerprints);
                        return -1;
                }