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WPS: Fix potential memory leak with NFC password token

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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>
This commit is contained in:
Jouni Malinen 2012-06-27 20:53:29 +03:00
parent 7be6dc2e96
commit 582143e544
1 changed files with 1 additions and 0 deletions
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src/wps/wps_common.c
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@ -384,6 +384,7 @@ static int wps_parse_oob_dev_pwd(struct wps_context *wps,
pos = attr.oob_dev_password; pos = attr.oob_dev_password;
wpabuf_free(oob_conf->pubkey_hash);
oob_conf->pubkey_hash = oob_conf->pubkey_hash =
wpabuf_alloc_copy(pos, WPS_OOB_PUBKEY_HASH_LEN); wpabuf_alloc_copy(pos, WPS_OOB_PUBKEY_HASH_LEN);
if (oob_conf->pubkey_hash == NULL) { if (oob_conf->pubkey_hash == NULL) {