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EAP-EKE peer: Fix memory leak on error path

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If DHComponent_P derivation fails (local crypto operation failure), the
message buffer was not freed.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-12-01 00:20:25 +02:00
parent 34b164dd25
commit 9ea91cd67c
1 changed files with 1 additions and 0 deletions
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src/eap_peer/eap_eke.c
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@ -452,6 +452,7 @@ static struct wpabuf * eap_eke_process_commit(struct eap_sm *sm,
/* DHComponent_P = Encr(key, y_p) */ /* DHComponent_P = Encr(key, y_p) */
rpos = wpabuf_put(resp, data->sess.dhcomp_len); rpos = wpabuf_put(resp, data->sess.dhcomp_len);
if (eap_eke_dhcomp(&data->sess, key, pub, rpos) < 0) { if (eap_eke_dhcomp(&data->sess, key, pub, rpos) < 0) {
wpabuf_free(resp);
wpa_printf(MSG_INFO, "EAP-EKE: Failed to build DHComponent_P"); wpa_printf(MSG_INFO, "EAP-EKE: Failed to build DHComponent_P");
os_memset(key, 0, sizeof(key)); os_memset(key, 0, sizeof(key));
return eap_eke_build_fail(data, ret, id, return eap_eke_build_fail(data, ret, id,