Commit d70323f1 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

Submitted by: Peter Gutmann <pgut001@cs.auckland.ac.nz> 

Approved by: steve@openssl.org

Check return values for NULL in case of malloc failure.
parent 716cddc0

crypto/bn/bn_div.c

+2 −1
Original line number Diff line number Diff line
@@ -229,7 +229,8 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor, 
	if (dv == NULL)

		res=BN_CTX_get(ctx);

	else	res=dv;

	if (sdiv == NULL || res == NULL) goto err;

	if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)

		goto err;



	/* First we normalise the numbers */

	norm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);

crypto/bn/bn_exp.c

+2 −1
Original line number Diff line number Diff line
@@ -134,7 +134,8 @@ int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx) 
		rr = BN_CTX_get(ctx);

	else

		rr = r;

	if ((v = BN_CTX_get(ctx)) == NULL) goto err;

	v = BN_CTX_get(ctx);

	if (rr == NULL || v == NULL) goto err;



	if (BN_copy(v,a) == NULL) goto err;

	bits=BN_num_bits(p);