59 lines
2.0 KiB
Diff
59 lines
2.0 KiB
Diff
From 72997944d5ee7f165fe04f1ac451d115e97d75e9 Mon Sep 17 00:00:00 2001
|
|
From: Joe Watkins <krakjoe@php.net>
|
|
Date: Sat, 10 Dec 2016 13:34:08 +0000
|
|
Subject: [PATCH] Check the result of the call to serialize json object before
|
|
calling strdup
|
|
|
|
---
|
|
u2f-server/core.c | 16 ++++++++++++----
|
|
1 file changed, 12 insertions(+), 4 deletions(-)
|
|
|
|
Index: libu2f-server-1.0.1/u2f-server/core.c
|
|
===================================================================
|
|
--- libu2f-server-1.0.1.orig/u2f-server/core.c
|
|
+++ libu2f-server-1.0.1/u2f-server/core.c
|
|
@@ -381,6 +381,7 @@ static int registration_challenge_json(c
|
|
struct json_object *json_version = NULL;
|
|
struct json_object *json_appid = NULL;
|
|
struct json_object *json_output = NULL;
|
|
+ const char *json_string = NULL;
|
|
|
|
rc = U2FS_JSON_ERROR;
|
|
|
|
@@ -402,8 +403,11 @@ static int registration_challenge_json(c
|
|
json_object_object_add(json_output, "version", json_version);
|
|
json_object_object_add(json_output, "appId", json_appid);
|
|
|
|
- *output = strdup(json_object_to_json_string(json_output));
|
|
- if (*output == NULL)
|
|
+ json_string = json_object_to_json_string(json_output);
|
|
+
|
|
+ if (json_string == NULL)
|
|
+ rc = U2FS_JSON_ERROR;
|
|
+ else if ((*output = strdup(json_string)) == NULL)
|
|
rc = U2FS_MEMORY_ERROR;
|
|
else
|
|
rc = U2FS_OK;
|
|
@@ -951,6 +955,7 @@ static int authentication_challenge_json
|
|
struct json_object *json_version = NULL;
|
|
struct json_object *json_appid = NULL;
|
|
struct json_object *json_output = NULL;
|
|
+ const char *json_string = NULL;
|
|
|
|
rc = U2FS_JSON_ERROR;
|
|
|
|
@@ -976,8 +981,11 @@ static int authentication_challenge_json
|
|
json_object_object_add(json_output, "challenge", json_challenge);
|
|
json_object_object_add(json_output, "appId", json_appid);
|
|
|
|
- *output = strdup(json_object_to_json_string(json_output));
|
|
- if (*output == NULL)
|
|
+ json_string = json_object_to_json_string(json_output);
|
|
+
|
|
+ if (json_string == NULL)
|
|
+ rc = U2FS_JSON_ERROR;
|
|
+ else if ((*output = strdup(json_string)) == NULL)
|
|
rc = U2FS_MEMORY_ERROR;
|
|
else
|
|
rc = U2FS_OK;
|