package/network/services/hostapd/patches/150-add-NULL-checks-encountered-during-tests-hwsim.patch

   1 From 33afce36c54b0cad38643629ded10ff5d727f077 Mon Sep 17 00:00:00 2001
   2 From: Glenn Strauss <gstrauss@gluelogic.com>
   3 Date: Fri, 12 Aug 2022 05:34:47 -0400
   4 Subject: [PATCH 5/7] add NULL checks (encountered during tests/hwsim)
   5
   6 sae_derive_commit_element_ecc NULL pwe_ecc check
   7 dpp_gen_keypair() NULL curve check
   8
   9 Signed-off-by: Glenn Strauss <gstrauss@gluelogic.com>
  10 ---
  11  src/common/dpp_crypto.c | 6 ++++++
  12  src/common/sae.c        | 7 +++++++
  13  2 files changed, 13 insertions(+)
  14
  15 --- a/src/common/dpp_crypto.c
  16 +++ b/src/common/dpp_crypto.c
  17 @@ -248,6 +248,12 @@ struct crypto_ec_key * dpp_set_pubkey_po
  18
  19  struct crypto_ec_key * dpp_gen_keypair(const struct dpp_curve_params *curve)
  20  {
  21 +       if (curve == NULL) {
  22 +               wpa_printf(MSG_DEBUG,
  23 +                          "DPP: %s curve must be initialized", __func__);
  24 +               return NULL;
  25 +       }
  26 +
  27         struct crypto_ec_key *key;
  28
  29         wpa_printf(MSG_DEBUG, "DPP: Generating a keypair");
  30 --- a/src/common/sae.c
  31 +++ b/src/common/sae.c
  32 @@ -1278,6 +1278,13 @@ void sae_deinit_pt(struct sae_pt *pt)
  33  static int sae_derive_commit_element_ecc(struct sae_data *sae,
  34                                          struct crypto_bignum *mask)
  35  {
  36 +       if (sae->tmp->pwe_ecc == NULL) {
  37 +               wpa_printf(MSG_DEBUG,
  38 +                          "SAE: %s sae->tmp->pwe_ecc must be initialized",
  39 +                          __func__);
  40 +               return -1;
  41 +       }
  42 +
  43         /* COMMIT-ELEMENT = inverse(scalar-op(mask, PWE)) */
  44         if (!sae->tmp->own_commit_element_ecc) {
  45                 sae->tmp->own_commit_element_ecc =