Commit add2ab1f authored by Eneas U de Queiroz's avatar Eneas U de Queiroz Committed by Richard Levitte
Browse files

eng_devcrypto: expand digest failure cases 



Return failure when the digest_ctx is null in digest_update and
digest_final, and when md is null in digest_final.

Signed-off-by: default avatarEneas U de Queiroz <cote2004-github@yahoo.com>

Reviewed-by: default avatarMatthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: default avatarRichard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit 4d9f9965)
parent be5cf61c

crypto/engine/eng_devcrypto.c

+5 −0
Original line number Diff line number Diff line
@@ -438,6 +438,9 @@ static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count) 
    if (count == 0)

        return 1;



    if (digest_ctx == NULL)

        return 0;



    if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) < 0) {

        SYSerr(SYS_F_IOCTL, errno);

        return 0;
@@ -451,6 +454,8 @@ static int digest_final(EVP_MD_CTX *ctx, unsigned char *md) 
    struct digest_ctx *digest_ctx =

        (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);



    if (md == NULL || digest_ctx == NULL)

        return 0;

    if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {

        SYSerr(SYS_F_IOCTL, errno);

        return 0;