From: Greg Hudson <ghudson@mit.edu>
Date: Tue, 20 Oct 2009 13:47:40 +0000 (+0000)
Subject: In krb5_k_make_checksum, check for a null key passed with a keyed
X-Git-Tag: krb5-1.8-alpha1~289
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=dd3c61e969734b1f68c925268bd9980d5bce19c1;p=krb5.git

In krb5_k_make_checksum, check for a null key passed with a keyed
checksum instead of just crashing.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@22952 dc483132-0cff-0310-8789-dd5450dbe970
---

diff --git a/src/lib/crypto/krb/make_checksum.c b/src/lib/crypto/krb/make_checksum.c
index dd34df377..01e374b14 100644
--- a/src/lib/crypto/krb/make_checksum.c
+++ b/src/lib/crypto/krb/make_checksum.c
@@ -68,7 +68,7 @@ krb5_k_make_checksum(krb5_context context, krb5_cksumtype cksumtype,
 	/* check if key is compatible */
 	if (ctp->keyed_etype) {
 	    ktp1 = find_enctype(ctp->keyed_etype);
-	    ktp2 = find_enctype(key->keyblock.enctype);
+	    ktp2 = key ? find_enctype(key->keyblock.enctype) : NULL;
 	    if (ktp1 == NULL || ktp2 == NULL || ktp1->enc != ktp2->enc) {
 		ret = KRB5_BAD_ENCTYPE;
 		goto cleanup;