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

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Approved by: steve@openssl.org

Check return values for NULL in case of malloc failure.
This commit is contained in:
Dr. Stephen Henson 2009-06-17 11:25:42 +00:00
parent 716cddc03c
commit d70323f1c5
2 changed files with 4 additions and 2 deletions
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3
crypto/bn/bn_div.c
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@ -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);

3
crypto/bn/bn_exp.c
View File

@ -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);