patch: don't modify original res

zmap · Nov 16, 2024 · 7926796 · 7926796
1 parent 148eb28
commit 7926796
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/zdns/cache.go b/src/zdns/cache.go
@@ -338,7 +338,13 @@ func (s *Cache) SafeAddCachedAuthority(res *SingleQueryResult, ns *NameServer, d
 		}
 	}
 
-	res.Authorities = otherRRs
+	res = &SingleQueryResult{
+		Answers:            otherRRs,
+		Protocol:           res.Protocol,
+		Resolver:           res.Resolver,
+		Flags:              res.Flags,
+		TLSServerHandshake: res.TLSServerHandshake,
+	}
 	cachedRes := s.buildCachedResult(res, depth, layer)
 	if len(cachedRes.Answers) == 0 && len(cachedRes.Authorities) == 0 && len(cachedRes.Additionals) == 0 {
 		s.VerboseLog(depth+1, "SafeAddCachedAnswer: no cacheable records found, aborting")