acl: acl_rights_sort() - Handle zero sized rights array properly

Fixes ubsan complaint about count-dest wrapping to negative.
The array code handled this properly though, so nothing was broken.

diff --git a/src/plugins/acl/acl-api.c b/src/plugins/acl/acl-api.c
index 87d76ebd0a7ae4b8f1782d16e3e020d942d9ce0c..1e864868ae604c2a8f07d1e78b280dcc24f4f039 100644 (file)
--- a/src/plugins/acl/acl-api.c
+++ b/src/plugins/acl/acl-api.c
@@ -493,7 +493,7 @@ void acl_rights_sort(struct acl_object *aclobj)
                                rights[dest] = rights[i];
                }
        }
-       if (++dest != count)
+       if (++dest < count)
                array_delete(&aclobj->rights, dest, count - dest);
 }