diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/bn/bn_gf2m.c')
| -rwxr-xr-x | Cryptlib/OpenSSL/crypto/bn/bn_gf2m.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Cryptlib/OpenSSL/crypto/bn/bn_gf2m.c b/Cryptlib/OpenSSL/crypto/bn/bn_gf2m.c index 306f029f..5d90f1e8 100755 --- a/Cryptlib/OpenSSL/crypto/bn/bn_gf2m.c +++ b/Cryptlib/OpenSSL/crypto/bn/bn_gf2m.c @@ -294,7 +294,8 @@ int BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b) if (a->top < b->top) { at = b; bt = a; } else { at = a; bt = b; } - bn_wexpand(r, at->top); + if(bn_wexpand(r, at->top) == NULL) + return 0; for (i = 0; i < bt->top; i++) { @@ -606,6 +607,7 @@ int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx) { while (!BN_is_odd(u)) { + if (BN_is_zero(u)) goto err; if (!BN_rshift1(u, u)) goto err; if (BN_is_odd(b)) { |