package/libs/openssl/patches/210-eng_devcrypto-expand-digest-failure-cases.patch

   1 From add2ab1f289c24a1563c5b895d5cd133fe874f12 Mon Sep 17 00:00:00 2001
   2 From: Eneas U de Queiroz <cote2004-github@yahoo.com>
   3 Date: Wed, 14 Nov 2018 11:22:14 -0200
   4 Subject: [PATCH 2/7] eng_devcrypto: expand digest failure cases
   5
   6 Return failure when the digest_ctx is null in digest_update and
   7 digest_final, and when md is null in digest_final.
   8
   9 Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
  10
  11 Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
  12 Reviewed-by: Richard Levitte <levitte@openssl.org>
  13 (Merged from https://github.com/openssl/openssl/pull/7585)
  14
  15 (cherry picked from commit 4d9f99654441e36fdcb49540a1dbc9d4c70ccb68)
  16
  17 --- a/crypto/engine/eng_devcrypto.c
  18 +++ b/crypto/engine/eng_devcrypto.c
  19 @@ -438,6 +438,9 @@ static int digest_update(EVP_MD_CTX *ctx
  20      if (count == 0)
  21          return 1;
  22
  23 +    if (digest_ctx == NULL)
  24 +        return 0;
  25 +
  26      if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) < 0) {
  27          SYSerr(SYS_F_IOCTL, errno);
  28          return 0;
  29 @@ -451,6 +454,8 @@ static int digest_final(EVP_MD_CTX *ctx,
  30      struct digest_ctx *digest_ctx =
  31          (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
  32
  33 +    if (md == NULL || digest_ctx == NULL)
  34 +        return 0;
  35      if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {
  36          SYSerr(SYS_F_IOCTL, errno);
  37          return 0;