pull up r25536 from trunk

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 r25536 | ghudson | 2011-12-09 12:57:52 -0500 (Fri, 09 Dec 2011) | 8 lines

 ticket: 7049
 subject: Fix subkey memory leak in krb5_get_credentials
 target_version: 1.10
 tags: pullup

 If a get_credentials operation requires multiple TGS requests, we need
 to free the subkey from previous requests before saving a new one.

ticket: 7052
version_fixed: 1.9.3
status: resolved

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-9@25587 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/lib/krb5/krb/get_creds.c b/src/lib/krb5/krb/get_creds.c
index 450e7d8a3207718b5dd42c6127ea54a6b4685e93..e81da3500d207fc3239d24511b760e06b8547678 100644 (file)
--- a/src/lib/krb5/krb/get_creds.c
+++ b/src/lib/krb5/krb/get_creds.c
@@ -273,6 +273,8 @@ make_request(krb5_context context, krb5_tkt_creds_context ctx,
     if (!krb5_c_valid_enctype(ctx->cur_tgt->keyblock.enctype))
         return KRB5_PROG_ETYPE_NOSUPP;
 
+    krb5_free_keyblock(context, ctx->subkey);
+    ctx->subkey = NULL;
     code = krb5int_make_tgs_request(context, ctx->cur_tgt, ctx->kdcopt,
                                     ctx->cur_tgt->addresses, NULL,
                                     ctx->tgs_in_creds, NULL, NULL, &request,