--- rpm-5.4.7/lib/rpmds.c.ds_stat~	2012-03-13 19:42:38.344711524 +0100
+++ rpm-5.4.7/lib/rpmds.c	2012-03-13 19:42:47.633723723 +0100
@@ -2961,6 +2961,8 @@ static char *find_elf_interpreter(GElf_E
     size_t shstrndx;
 
     if (filename) {
+	if (!*filename)
+	    return NULL;
 	if (!(fp = fopen(filename, "r"))) {
 	    perror(filename);
 	    return NULL;