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From 3a84c2469c31967bc22c0490456f07723ef5fc86 Mon Sep 17 00:00:00 2001
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From: Sumit Bose <sbose@redhat.com>
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Date: Wed, 20 Mar 2019 11:01:50 +0100
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Subject: [PATCH 1/4] ensure_keytab_principals: do not leak memory when called
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twice
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Related to https://bugzilla.redhat.com/show_bug.cgi?id=1630187
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---
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library/adenroll.c | 32 +++++++++++++++++++++-----------
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1 file changed, 21 insertions(+), 11 deletions(-)
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diff --git a/library/adenroll.c b/library/adenroll.c
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index d1f746c..48cb4cf 100644
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--- a/library/adenroll.c
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+++ b/library/adenroll.c
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@@ -413,6 +413,25 @@ ensure_service_principals (adcli_result res,
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return res;
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}
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+static void enroll_clear_keytab_principals (adcli_enroll *enroll)
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+{
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+ krb5_context k5;
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+ size_t c;
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+
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+ if (enroll->keytab_principals) {
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+ k5 = adcli_conn_get_krb5_context (enroll->conn);
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+ return_if_fail (k5 != NULL);
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+
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+ for (c = 0; enroll->keytab_principals[c] != NULL; c++)
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+ krb5_free_principal (k5, enroll->keytab_principals[c]);
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+
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+ free (enroll->keytab_principals);
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+ enroll->keytab_principals = NULL;
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+ }
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+
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+ return;
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+}
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+
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static adcli_result
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ensure_keytab_principals (adcli_result res,
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adcli_enroll *enroll)
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@@ -430,6 +449,7 @@ ensure_keytab_principals (adcli_result res,
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k5 = adcli_conn_get_krb5_context (enroll->conn);
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return_unexpected_if_fail (k5 != NULL);
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+ enroll_clear_keytab_principals (enroll);
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enroll->keytab_principals = calloc (count + 3, sizeof (krb5_principal));
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return_unexpected_if_fail (enroll->keytab_principals != NULL);
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at = 0;
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@@ -1860,18 +1880,8 @@ static void
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enroll_clear_state (adcli_enroll *enroll)
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{
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krb5_context k5;
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- int i;
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-
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- if (enroll->keytab_principals) {
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- k5 = adcli_conn_get_krb5_context (enroll->conn);
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- return_if_fail (k5 != NULL);
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-
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- for (i = 0; enroll->keytab_principals[i] != NULL; i++)
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- krb5_free_principal (k5, enroll->keytab_principals[i]);
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- free (enroll->keytab_principals);
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- enroll->keytab_principals = NULL;
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- }
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+ enroll_clear_keytab_principals (enroll);
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if (enroll->keytab) {
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k5 = adcli_conn_get_krb5_context (enroll->conn);
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--
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2.20.1
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