We should avoid accessing the type pointer if it's NULL,
this could happen if ctx->digest is not NULL.
---
crypto/evp/digest.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/crypto/evp/digest.c b/crypto/evp/digest.c
index 982ba2b..96122ea 100644
--- a/crypto/evp/digest.c
+++ b/crypto/evp/digest.c
@@ -195,7 +195,7 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type,
ENGINE *impl)
return 0;
}
#endif
- if (ctx->digest != type)
+ if (type && (ctx->digest != type))
{
if (ctx->digest && ctx->digest->ctx_size)
OPENSSL_free(ctx->md_data);
--
1.7.0.2
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