# DP: Issue #8154, fix segfault with os.execlp('true')

Index: python2.6-2.6.5+20100521/Modules/posixmodule.c
===================================================================
--- python2.6-2.6.5+20100521.orig/Modules/posixmodule.c	2010-05-21 16:11:09.200741779 +0200
+++ python2.6-2.6.5+20100521/Modules/posixmodule.c	2010-05-21 16:17:59.203713876 +0200
@@ -2979,6 +2979,11 @@
         PyMem_Free(path);
         return NULL;
     }
+    if (argc < 1) {
+        PyErr_SetString(PyExc_ValueError, "execv() arg 2 must not be empty");
+        PyMem_Free(path);
+        return NULL;
+    }
 
     argvlist = PyMem_NEW(char *, argc+1);
     if (argvlist == NULL) {