From: Alexandra Ellwood <lxs@mit.edu>
Date: Wed, 25 Jun 2008 20:01:01 +0000 (+0000)
Subject: krb5_do_preauth_tryagain should check for NULL padata
X-Git-Tag: krb5-1.7-alpha1~635
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=99231291113511ae13720027425aa30a392135dc;p=krb5.git

krb5_do_preauth_tryagain should check for NULL padata

Fixed so krb5_do_preauth_tryagain no longer crashes on NULL padata but
instead returns an error.

ticket: new
status: open

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@20473 dc483132-0cff-0310-8789-dd5450dbe970
---

diff --git a/src/lib/krb5/krb/preauth2.c b/src/lib/krb5/krb/preauth2.c
index 96df2db04..2ea2533e5 100644
--- a/src/lib/krb5/krb/preauth2.c
+++ b/src/lib/krb5/krb/preauth2.c
@@ -1679,7 +1679,10 @@ krb5_do_preauth_tryagain(krb5_context kcontext,
     if (context == NULL) {
        return KRB5KRB_ERR_GENERIC;
     }
-
+    if (padata == NULL) {
+        return KRB5KRB_ERR_GENERIC;
+    }
+    
     for (i = 0; padata[i] != NULL && padata[i]->pa_type != 0; i++) {
 	out_padata = NULL;
 	for (j = 0; j < context->n_modules; j++) {