Index: cryptsetup-1.0.7/lib/utils.c
===================================================================
--- cryptsetup-1.0.7.orig/lib/utils.c
+++ cryptsetup-1.0.7/lib/utils.c
@@ -452,6 +452,8 @@ int get_key(char *prompt, char **key, un
 		}
 		if(key_file)
 			close(fd);
+		if(!i) // we didn't read anything, user pressed ^D?
+			goto out_err;
 		pass[i] = 0;
 		*key = pass;
 		*passLen = i;