From: Jouni Malinen <j@w1.fi>
Date: Wed, 27 Jun 2012 17:53:29 +0000 (+0300)
Subject: WPS: Fix potential memory leak with NFC password token
X-Git-Tag: hostap_2_0~591
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=582143e5440c59ca3c0f97e4e2fe73a0af8750ee;p=thirdparty%2Fhostap.git

WPS: Fix potential memory leak with NFC password token

The old stored public key hash needs to be freed before replacing
the pointer with the new value.

Signed-hostap: Jouni Malinen <j@w1.fi>
---

diff --git a/src/wps/wps_common.c b/src/wps/wps_common.c
index 20e0824e2..510d99d3e 100644
--- a/src/wps/wps_common.c
+++ b/src/wps/wps_common.c
@@ -384,6 +384,7 @@ static int wps_parse_oob_dev_pwd(struct wps_context *wps,
 
 	pos = attr.oob_dev_password;
 
+	wpabuf_free(oob_conf->pubkey_hash);
 	oob_conf->pubkey_hash =
 		wpabuf_alloc_copy(pos, WPS_OOB_PUBKEY_HASH_LEN);
 	if (oob_conf->pubkey_hash == NULL) {