Pointer to BN_MONT_CTX could be used uninitialized.

crypto/dh/dh_key.c

@@ -104,7 +104,7 @@ static int generate_key(DH *dh)
 	int generate_new_key=0;
 	unsigned l;
 	BN_CTX *ctx;
-	BN_MONT_CTX *mont;
+	BN_MONT_CTX *mont=NULL;
 	BIGNUM *pub_key=NULL,*priv_key=NULL;
 
 	ctx = BN_CTX_new();
@@ -160,7 +160,7 @@ err:
 static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
 	{
 	BN_CTX *ctx;
-	BN_MONT_CTX *mont;
+	BN_MONT_CTX *mont=NULL;
 	BIGNUM *tmp;
 	int ret= -1;