Incorporation of RSEs assembled patches

[oweals/openssl.git] / crypto / bn / bn_blind.c

diff --git a/crypto/bn/bn_blind.c b/crypto/bn/bn_blind.c
index a7b34f0bf07954062f462c076ca42a842fccd396..35be32b99a5e466bee2c68320b3f352add747cad 100644 (file)
--- a/crypto/bn/bn_blind.c
+++ b/crypto/bn/bn_blind.c
@@ -67,8 +67,14 @@ BIGNUM *mod;
        {
        BN_BLINDING *ret=NULL;
 
+       bn_check_top(Ai);
+       bn_check_top(mod);
+
        if ((ret=(BN_BLINDING *)Malloc(sizeof(BN_BLINDING))) == NULL)
+               {
                BNerr(BN_F_BN_BLINDING_NEW,ERR_R_MALLOC_FAILURE);
+               return(NULL);
+               }
        memset(ret,0,sizeof(BN_BLINDING));
        if ((ret->A=BN_new()) == NULL) goto err;
        if ((ret->Ai=BN_new()) == NULL) goto err;
@@ -78,7 +84,7 @@ BIGNUM *mod;
        return(ret);
 err:
        if (ret != NULL) BN_BLINDING_free(ret);
-       return(ret);
+       return(NULL);
        }
 
 void BN_BLINDING_free(r)
@@ -114,6 +120,8 @@ BIGNUM *n;
 BN_BLINDING *b;
 BN_CTX *ctx;
        {
+       bn_check_top(n);
+
        if ((b->A == NULL) || (b->Ai == NULL))
                {
                BNerr(BN_F_BN_BLINDING_CONVERT,BN_R_NOT_INITALISED);
@@ -128,6 +136,8 @@ BN_BLINDING *b;
 BN_CTX *ctx;
        {
        int ret;
+
+       bn_check_top(n);
        if ((b->A == NULL) || (b->Ai == NULL))
                {
                BNerr(BN_F_BN_BLINDING_INVERT,BN_R_NOT_INITALISED);