From: Alan T. DeKok <aland@freeradius.org>
Date: Thu, 17 Jun 2021 13:59:20 +0000 (-0400)
Subject: prevent recursive includes
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d5e1f6299a7f89b09554b2491f58965ed3b5d2b;p=thirdparty%2Ffreeradius-server.git

prevent recursive includes
---

diff --git a/src/lib/util/dict_fixup.c b/src/lib/util/dict_fixup.c
index 7bab1076de6..a0cc2c7997d 100644
--- a/src/lib/util/dict_fixup.c
+++ b/src/lib/util/dict_fixup.c
@@ -249,6 +249,14 @@ static fr_dict_attr_t const *dict_find_or_load_reference(fr_dict_t **dict_def, c
 
 		if (p) *p = '\0';
 
+		/*
+		 *	Can't load the dictionary we're loading.
+		 */
+		if (dict == *dict_def) {
+			fr_strerror_printf("Cannot reference parent dictionary %s from within the same dictionary", fr_dict_root(dict)->name);
+			return NULL;
+		}
+
 		if (fr_dict_protocol_afrom_file(&other, ref, NULL, filename) < 0) {
 			return NULL;
 		}