1 files changed, 1 insertions, 1 deletions
diff --git a/hesiod/hesiod.c b/hesiod/hesiod.c
index 6ecbad11cc..c2925a0f99 100644
--- a/hesiod/hesiod.c
+++ b/hesiod/hesiod.c
@@ -398,7 +398,7 @@ get_txt_records(struct hesiod_p *ctx, int class, const char *name) {
 		cp += INT16SZ + INT32SZ;	/* skip the ttl, too */
 		rr.dlen = ns_get16(cp);
 		cp += INT16SZ;
-		if (cp + rr.dlen > eom) {
+		if (rr.dlen == 0 || cp + rr.dlen > eom) {
 			__set_errno(EMSGSIZE);
 			goto cleanup;
 		}