diff --git a/elf/dl-find_object.c b/elf/dl-find_object.c
index 449302eda3..ae18b438d3 100644
--- a/elf/dl-find_object.c
+++ b/elf/dl-find_object.c
@@ -662,6 +662,14 @@ _dl_find_object_update_1 (struct link_map **loaded, size_t count)
     = _dlfo_loaded_mappings[!active_idx];
   size_t remaining_to_add = current_used + count;
 
+  /* remaining_to_add can be 0 if (current_used + count) wraps, but in practice
+     this is not possible as it represent counts of link maps.  Link maps have
+     sizes larger than 1 byte, so the sum of any two link map counts will
+     always fit within a size_t without wrapping around.  This check ensures
+     that target_seg is not erroneously considered potentially NULL by GCC. */
+  if (remaining_to_add == 0)
+    __builtin_unreachable ();
+
   /* Ensure that the new segment chain has enough space.  */
   {
     size_t new_allocated