From: Srikanth Marepalli <srimarep@codeaurora.org>
Date: Thu, 20 Sep 2018 09:16:54 +0000 (+0530)
Subject: Free dh_ctx on failure in wps_nfc_gen_dh()
X-Git-Tag: hostap_2_7~173
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e66226016204631da0c5622e96ce1e5c73a28d38;p=thirdparty%2Fhostap.git

Free dh_ctx on failure in wps_nfc_gen_dh()

This is needed to avoid a memory leak on an error path.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
---

diff --git a/src/wps/wps_common.c b/src/wps/wps_common.c
index 2e3472177..bcae1ba58 100644
--- a/src/wps/wps_common.c
+++ b/src/wps/wps_common.c
@@ -654,6 +654,7 @@ int wps_nfc_gen_dh(struct wpabuf **pubkey, struct wpabuf **privkey)
 	pub = wpabuf_zeropad(pub, 192);
 	if (pub == NULL) {
 		wpabuf_free(priv);
+		dh5_free(dh_ctx);
 		return -1;
 	}
 	wpa_hexdump_buf(MSG_DEBUG, "WPS: Generated new DH pubkey", pub);