From 9b92a13dbc92b293f80d5704c51b14b819210958 Mon Sep 17 00:00:00 2001
From: Ryan Lucia <rylucia@microsoft.com>
Date: Tue, 24 Mar 2020 19:40:25 -0400
Subject: [PATCH] [metadata] Fix leak in custom attribute lookup (#33937)

---
 src/mono/mono/metadata/custom-attrs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mono/mono/metadata/custom-attrs.c b/src/mono/mono/metadata/custom-attrs.c
index a5e18b2..d45a40a 100644
--- a/src/mono/mono/metadata/custom-attrs.c
+++ b/src/mono/mono/metadata/custom-attrs.c
@@ -1627,8 +1627,10 @@ mono_custom_attrs_from_index_checked (MonoImage *image, guint32 idx, gboolean ig
 		++i;
 	}
 	len = attr_array->len;
-	if (!len)
+	if (!len) {
+		g_array_free (attr_array, TRUE);
 		return NULL;
+	}
 	ainfo = (MonoCustomAttrInfo *)g_malloc0 (MONO_SIZEOF_CUSTOM_ATTR_INFO + sizeof (MonoCustomAttrEntry) * len);
 	ainfo->num_attrs = len;
 	ainfo->image = image;
-- 
2.7.4