plugin/file: fix panic in miekg/dns.CompareDomainName()

coredns · Oct 1, 2019 · 718f2f9 · 718f2f9
1 parent 4ffbee2
commit 718f2f9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/plugin/file/lookup.go b/plugin/file/lookup.go
@@ -372,7 +372,7 @@ func (z *Zone) additionalProcessing(answer []dns.RR, do bool) (extra []dns.RR) {
 		case *dns.MX:
 			name = x.Mx
 		}
-		if !dns.IsSubDomain(z.origin, name) {
+		if len(name) == 0 || !dns.IsSubDomain(z.origin, name) {
 			continue
 		}