1 files changed, 6 insertions, 2 deletions

diff --git a/src/lib/libcrypto/evp/digest.c b/src/lib/libcrypto/evp/digest.c
index 467e6b5ae9..d14e8e48d5 100644
--- a/src/lib/libcrypto/evp/digest.c
+++ b/src/lib/libcrypto/evp/digest.c
@@ -267,6 +267,7 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)
         return FIPS_digestfinal(ctx, md, size);
 #else
         int ret;
+
         OPENSSL_assert(ctx->digest->md_size <= EVP_MAX_MD_SIZE);
         ret=ctx->digest->final(ctx,md);
         if (size != NULL)
@@ -365,8 +366,11 @@ int EVP_Digest(const void *data, size_t count,
 
 void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx)
         {
-        EVP_MD_CTX_cleanup(ctx);
-        OPENSSL_free(ctx);
+        if (ctx)
+                {
+                EVP_MD_CTX_cleanup(ctx);
+                OPENSSL_free(ctx);
+                }
         }
 
 /* This call frees resources associated with the context */