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| author | Bodo Möller <bodo@openssl.org> | 2002-08-07 07:53:47 +0000 |
|---|---|---|
| committer | Bodo Möller <bodo@openssl.org> | 2002-08-07 07:53:47 +0000 |
| commit | 7a8645d1716d7f84435b0f3d8d2fd122d6f75113 (patch) | |
| tree | bc791675767d9c6ffae3e35d27e8c8c2d9953ddc /crypto/bn/bn_gf2m.c | |
| parent | 5bf738737da9c9c09a73686f945c22d5eb2e1a74 (diff) | |
| download | openssl-7a8645d1716d7f84435b0f3d8d2fd122d6f75113.tar.gz | |
avoid SIGSEGV
Submitted by: Nils Larsch, Douglas Stebila
Diffstat (limited to 'crypto/bn/bn_gf2m.c')
| -rw-r--r-- | crypto/bn/bn_gf2m.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c index c969685c87..8bd17e0e7c 100644 --- a/crypto/bn/bn_gf2m.c +++ b/crypto/bn/bn_gf2m.c @@ -316,10 +316,10 @@ int BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const unsigned int p[]) int n, dN, d0, d1; BN_ULONG zz, *z; - /* Since the algorithm does reduction in place, if a == r, copy the + /* Since the algorithm does reduction in the r value, if a != r, copy the * contents of a into r so we can do reduction in r. */ - if ((a != NULL) && (a->d != r->d)) + if (a != r) { if (!bn_wexpand(r, a->top)) return 0; for (j = 0; j < a->top; j++) @@ -427,7 +427,7 @@ int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const unsig BN_CTX_start(ctx); if ((s = BN_CTX_get(ctx)) == NULL) goto err; - zlen = a->top + b->top; + zlen = a->top + b->top + 4; if (!bn_wexpand(s, zlen)) goto err; s->top = zlen; |