http://bugs.gentoo.org/248057

Index: src/modules/loaders/loader_xpm.c
===================================================================
--- src/modules/loaders/loader_xpm.c	(revision 37743)
+++ src/modules/loaders/loader_xpm.c	(revision 37744)
@@ -253,8 +253,8 @@ load(ImlibImage * im, ImlibProgressFunct
                                  return 0;
                               }
                             ptr = im->data;
-                            end = ptr + (sizeof(DATA32) * w * h);
                             pixels = w * h;
+                            end = ptr + (pixels);
                          }
                        else
                          {