X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fwin32_capture.c;h=786756f781a74b1ac94f7854633d9b8af00b43fb;hp=ef7d118a20dbde54d615665a5ca2a8460e49ab01;hb=58ccad75516dcb536515cfb672e150670f44b957;hpb=4109848cdf4c31d8ea1a410b183478ad4124f15b;ds=sidebyside

diff --git a/src/win32_capture.c b/src/win32_capture.c
index ef7d118a..786756f7 100644
--- a/src/win32_capture.c
+++ b/src/win32_capture.c
@@ -2477,6 +2477,9 @@ security_map_lookup(struct security_map *map, u32 disk_security_id)
 	struct security_map_node tmp;
 	const struct avl_tree_node *res;
 
+	if (disk_security_id == 0)  /* No on-disk security ID; uncacheable  */
+		return -1;
+
 	tmp.disk_security_id = disk_security_id;
 	res = avl_tree_lookup_node(map->root, &tmp.index_node,
 				   _avl_cmp_security_map_nodes);
@@ -2491,6 +2494,9 @@ security_map_insert(struct security_map *map, u32 disk_security_id,
 {
 	struct security_map_node *node;
 
+	if (disk_security_id == 0)  /* No on-disk security ID; uncacheable  */
+		return 0;
+
 	node = MALLOC(sizeof(*node));
 	if (!node)
 		return WIMLIB_ERR_NOMEM;