5 files changed, 31 insertions, 1 deletions
diff --git a/engines/ccgost/gost2001.c b/engines/ccgost/gost2001.c
index 9536295430..881d0d3c90 100644
--- a/engines/ccgost/gost2001.c
+++ b/engines/ccgost/gost2001.c
@@ -434,8 +434,16 @@ int gost2001_compute_public(EC_KEY *ec)
 int gost2001_keygen(EC_KEY *ec)
 {
     BIGNUM *order = BN_new(), *d = BN_new();
-    const EC_GROUP *group = EC_KEY_get0_group(ec);
+    const EC_GROUP *group = NULL;
+
+    if (order == NULL || d == NULL) {
+        GOSTerr(GOST_F_GOST2001_KEYGEN, ERR_R_MALLOC_FAILURE);
+        BN_free(d);
+        BN_free(order);
+        return 0;
+    }
 
+    group = EC_KEY_get0_group(ec);
     if(!group || !EC_GROUP_get_order(group, order, NULL)) {
         GOSTerr(GOST_F_GOST2001_KEYGEN, ERR_R_INTERNAL_ERROR);
         BN_free(d);
diff --git a/engines/ccgost/gost2001_keyx.c b/engines/ccgost/gost2001_keyx.c
index db1bdc18fd..ac7862eab5 100644
--- a/engines/ccgost/gost2001_keyx.c
+++ b/engines/ccgost/gost2001_keyx.c
@@ -147,6 +147,8 @@ int pkey_GOST01cp_encrypt(EVP_PKEY_CTX *pctx, unsigned char *out,
         key_is_ephemeral = 1;
         if (out) {
             sec_key = EVP_PKEY_new();
+            if (sec_key == NULL)
+                goto err;
             EVP_PKEY_assign(sec_key, EVP_PKEY_base_id(pubk), EC_KEY_new());
             EVP_PKEY_copy_parameters(sec_key, pubk);
             if (!gost2001_keygen(EVP_PKEY_get0(sec_key))) {
diff --git a/engines/ccgost/gost94_keyx.c b/engines/ccgost/gost94_keyx.c
index ce57f17cbf..3532bfff3e 100644
--- a/engines/ccgost/gost94_keyx.c
+++ b/engines/ccgost/gost94_keyx.c
@@ -126,6 +126,8 @@ int pkey_GOST94cp_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out,
         key_is_ephemeral = 1;
         if (out) {
             mykey = EVP_PKEY_new();
+            if (!mykey)
+                goto memerr;
             EVP_PKEY_assign(mykey, EVP_PKEY_base_id(pubk), DSA_new());
             EVP_PKEY_copy_parameters(mykey, pubk);
             if (!gost_sign_keygen(EVP_PKEY_get0(mykey))) {
diff --git a/engines/ccgost/gost_ameth.c b/engines/ccgost/gost_ameth.c
index b7c5354c1a..8283f192f4 100644
--- a/engines/ccgost/gost_ameth.c
+++ b/engines/ccgost/gost_ameth.c
@@ -617,6 +617,10 @@ static int pub_decode_gost94(EVP_PKEY *pk, X509_PUBKEY *pub)
         return 0;
     }
     databuf = OPENSSL_malloc(octet->length);
+    if (databuf == NULL) {
+        GOSTerr(GOST_F_PUB_DECODE_GOST94, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
     for (i = 0, j = octet->length - 1; i < octet->length; i++, j--) {
         databuf[j] = octet->data[i];
     }
@@ -646,6 +650,8 @@ static int pub_encode_gost94(X509_PUBKEY *pub, const EVP_PKEY *pk)
     }
     data_len = BN_num_bytes(dsa->pub_key);
     databuf = OPENSSL_malloc(data_len);
+    if (databuf == NULL)
+        return 0;
     BN_bn2bin(dsa->pub_key, databuf);
     octet = ASN1_OCTET_STRING_new();
     ASN1_STRING_set(octet, NULL, data_len);
@@ -686,6 +692,10 @@ static int pub_decode_gost01(EVP_PKEY *pk, X509_PUBKEY *pub)
         return 0;
     }
     databuf = OPENSSL_malloc(octet->length);
+    if (databuf == NULL) {
+        GOSTerr(GOST_F_PUB_DECODE_GOST01, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
     for (i = 0, j = octet->length - 1; i < octet->length; i++, j--) {
         databuf[j] = octet->data[i];
     }
@@ -760,6 +770,10 @@ static int pub_encode_gost01(X509_PUBKEY *pub, const EVP_PKEY *pk)
     data_len = 2 * BN_num_bytes(order);
     BN_free(order);
     databuf = OPENSSL_malloc(data_len);
+    if (databuf == NULL) {
+        GOSTerr(GOST_F_PUB_ENCODE_GOST01, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
     memset(databuf, 0, data_len);
 
     store_bignum(X, databuf + data_len / 2, data_len / 2);
diff --git a/engines/ccgost/gost_pmeth.c b/engines/ccgost/gost_pmeth.c
index 4a79a85cfc..696829253b 100644
--- a/engines/ccgost/gost_pmeth.c
+++ b/engines/ccgost/gost_pmeth.c
@@ -107,6 +107,8 @@ static int pkey_gost_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
         return 1;
     case EVP_PKEY_CTRL_SET_IV:
         pctx->shared_ukm = OPENSSL_malloc((int)p1);
+        if (pctx->shared_ukm == NULL)
+            return 0;
         memcpy(pctx->shared_ukm, p2, (int)p1);
         return 1;
     case EVP_PKEY_CTRL_PEER_KEY:
@@ -533,6 +535,8 @@ static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
         return 0;
     }
     keydata = OPENSSL_malloc(32);
+    if (keydata == NULL)
+        return 0;
     memcpy(keydata, data->key, 32);
     EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);
     return 1;