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PR: 2111

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Submitted by: Martin Olsson <molsson@opera.com>

Check for bn_wexpand errors in bn_mul.c
This commit is contained in:
Dr. Stephen Henson 2009-12-02 15:28:05 +00:00
parent 3d5d81bf39
commit 7b1856e5a1
2 changed files with 8 additions and 4 deletions

4
CHANGES

@ -828,6 +828,10 @@
Changes between 0.9.8l (?) and 0.9.8m (?) [xx XXX xxxx] Changes between 0.9.8l (?) and 0.9.8m (?) [xx XXX xxxx]
*) Replace the highly broken and deprecated SPKAC certification method with
the updated NID creation version. This should correctly handle UTF8.
[Steve Henson]
*) Implement *) Implement
https://svn.resiprocate.org/rep/ietf-drafts/ekr/draft-rescorla-tls-renegotiate.txt. Re-enable https://svn.resiprocate.org/rep/ietf-drafts/ekr/draft-rescorla-tls-renegotiate.txt. Re-enable
renegotiation but require the extension as needed. Unfortunately, renegotiation but require the extension as needed. Unfortunately,

8
crypto/bn/bn_mul.c

@ -1032,15 +1032,15 @@ int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
goto err; goto err;
if (al > j || bl > j) if (al > j || bl > j)
{ {
bn_wexpand(t,k*4); if (bn_wexpand(t,k*4) == NULL) goto err;
bn_wexpand(rr,k*4); if (bn_wexpand(rr,k*4) == NULL) goto err;
bn_mul_part_recursive(rr->d,a->d,b->d, bn_mul_part_recursive(rr->d,a->d,b->d,
j,al-j,bl-j,t->d); j,al-j,bl-j,t->d);
} }
else /* al <= j || bl <= j */ else /* al <= j || bl <= j */
{ {
bn_wexpand(t,k*2); if (bn_wexpand(t,k*2) == NULL) goto err;
bn_wexpand(rr,k*2); if (bn_wexpand(rr,k*2) == NULL) goto err;
bn_mul_recursive(rr->d,a->d,b->d, bn_mul_recursive(rr->d,a->d,b->d,
j,al-j,bl-j,t->d); j,al-j,bl-j,t->d);
} }