2022-09-15 07:48:45 +00:00
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From 33afce36c54b0cad38643629ded10ff5d727f077 Mon Sep 17 00:00:00 2001
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From: Glenn Strauss <gstrauss@gluelogic.com>
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Date: Fri, 12 Aug 2022 05:34:47 -0400
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Subject: [PATCH 5/7] add NULL checks (encountered during tests/hwsim)
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sae_derive_commit_element_ecc NULL pwe_ecc check
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dpp_gen_keypair() NULL curve check
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Signed-off-by: Glenn Strauss <gstrauss@gluelogic.com>
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---
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src/common/dpp_crypto.c | 6 ++++++
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src/common/sae.c | 7 +++++++
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2 files changed, 13 insertions(+)
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--- a/src/common/dpp_crypto.c
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+++ b/src/common/dpp_crypto.c
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2023-03-13 18:35:49 +00:00
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@@ -269,6 +269,12 @@ int dpp_get_pubkey_hash(struct crypto_ec
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2022-09-15 07:48:45 +00:00
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struct crypto_ec_key * dpp_gen_keypair(const struct dpp_curve_params *curve)
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{
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+ if (curve == NULL) {
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+ wpa_printf(MSG_DEBUG,
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+ "DPP: %s curve must be initialized", __func__);
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+ return NULL;
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+ }
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+
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struct crypto_ec_key *key;
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wpa_printf(MSG_DEBUG, "DPP: Generating a keypair");
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--- a/src/common/sae.c
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+++ b/src/common/sae.c
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@@ -1278,6 +1278,13 @@ void sae_deinit_pt(struct sae_pt *pt)
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static int sae_derive_commit_element_ecc(struct sae_data *sae,
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struct crypto_bignum *mask)
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{
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+ if (sae->tmp->pwe_ecc == NULL) {
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+ wpa_printf(MSG_DEBUG,
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+ "SAE: %s sae->tmp->pwe_ecc must be initialized",
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+ __func__);
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+ return -1;
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+ }
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+
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/* COMMIT-ELEMENT = inverse(scalar-op(mask, PWE)) */
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if (!sae->tmp->own_commit_element_ecc) {
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sae->tmp->own_commit_element_ecc =
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