From 32c343fc06c541b647868af38562956ed87ece8d Mon Sep 17 00:00:00 2001 From: Zhi Guan Date: Thu, 25 Jan 2018 23:56:14 +0800 Subject: [PATCH] Compatible with SDF Engine The SDF Engine might not malloc `ctx->md_data`. --- crypto/evp/digest.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/crypto/evp/digest.c b/crypto/evp/digest.c index c7cd6dfd..846fe72c 100644 --- a/crypto/evp/digest.c +++ b/crypto/evp/digest.c @@ -184,7 +184,8 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) ctx->digest->cleanup(ctx); EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED); } - OPENSSL_cleanse(ctx->md_data, ctx->digest->ctx_size); + if (ctx->md_data) + OPENSSL_cleanse(ctx->md_data, ctx->digest->ctx_size); return ret; }