diff options
Diffstat (limited to 'crypto/bn/bn_mont.c')
| -rw-r--r-- | crypto/bn/bn_mont.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/bn/bn_mont.c b/crypto/bn/bn_mont.c index c882891d5e..362390a353 100644 --- a/crypto/bn/bn_mont.c +++ b/crypto/bn/bn_mont.c @@ -95,6 +95,8 @@ static int BN_from_montgomery_word(BIGNUM *ret, BIGNUM *r, BN_MONT_CTX *mont) /* clear the top words of T */ i = max - r->top; + if (i < 0) + return 0; if (i) memset(&rp[r->top], 0, sizeof(*rp) * i); |