krb5/krb5-1.12-api.patch
2018-07-26 14:23:13 -04:00

40 lines
1.4 KiB
Diff

From abb19d2d2eac5f9f6e4a1bf26f59f3a62143dab9 Mon Sep 17 00:00:00 2001
From: Robbie Harwood <rharwood@redhat.com>
Date: Tue, 23 Aug 2016 16:47:00 -0400
Subject: [PATCH] krb5-1.12-api.patch
Reference docs don't define what happens if you call krb5_realm_compare() with
malformed krb5_principal structures. Define a behavior which keeps it from
crashing if applications don't check ahead of time.
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
---
src/lib/krb5/krb/princ_comp.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/lib/krb5/krb/princ_comp.c b/src/lib/krb5/krb/princ_comp.c
index a6936107d..0ed78833b 100644
--- a/src/lib/krb5/krb/princ_comp.c
+++ b/src/lib/krb5/krb/princ_comp.c
@@ -36,6 +36,10 @@ realm_compare_flags(krb5_context context,
const krb5_data *realm1 = &princ1->realm;
const krb5_data *realm2 = &princ2->realm;
+ if (princ1 == NULL || princ2 == NULL)
+ return FALSE;
+ if (realm1 == NULL || realm2 == NULL)
+ return FALSE;
if (realm1->length != realm2->length)
return FALSE;
if (realm1->length == 0)
@@ -88,6 +92,9 @@ krb5_principal_compare_flags(krb5_context context,
krb5_principal upn2 = NULL;
krb5_boolean ret = FALSE;
+ if (princ1 == NULL || princ2 == NULL)
+ return FALSE;
+
if (flags & KRB5_PRINCIPAL_COMPARE_ENTERPRISE) {
/* Treat UPNs as if they were real principals */
if (princ1->type == KRB5_NT_ENTERPRISE_PRINCIPAL) {