Fix missing malloc return value checks

During work on a larger change in master a number of locations were
identified where return value checks were missing. This backports the
relevant fixes.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 903738ac63e60c10552741e2d6de9753c67e0ff3)

Conflicts:
	crypto/cms/cms_sd.c

apps/ca.c

@@ -2514,6 +2514,8 @@ static int do_updatedb(CA_DB *db)
     char **rrow, *a_tm_s;
 
     a_tm = ASN1_UTCTIME_new();
+    if (a_tm == NULL)
+        return -1;
 
     /* get actual time and make a string */
     a_tm = X509_gmtime_adj(a_tm, 0);

crypto/cms/cms_pwri.c

@@ -121,6 +121,9 @@ CMS_RecipientInfo *CMS_add0_recipient_password(CMS_ContentInfo *cms,
 
     /* Setup algorithm identifier for cipher */
     encalg = X509_ALGOR_new();
+    if (encalg == NULL) {
+        goto merr;
+    }
     EVP_CIPHER_CTX_init(&ctx);
 
     if (EVP_EncryptInit_ex(&ctx, kekciph, NULL, NULL, NULL) <= 0) {

crypto/engine/eng_cryptodev.c

@@ -1230,15 +1230,18 @@ static DSA_SIG *cryptodev_dsa_do_sign(const unsigned char *dgst, int dlen,
     if (cryptodev_asym(&kop, BN_num_bytes(dsa->q), r,
                        BN_num_bytes(dsa->q), s) == 0) {
         dsaret = DSA_SIG_new();
+        if (dsaret == NULL)
+            goto err;
         dsaret->r = r;
         dsaret->s = s;
+        r = s = NULL;
     } else {
         const DSA_METHOD *meth = DSA_OpenSSL();
-        BN_free(r);
-        BN_free(s);
         dsaret = (meth->dsa_do_sign) (dgst, dlen, dsa);
     }
  err:
+    BN_free(r);
+    BN_free(s);
     kop.crk_param[0].crp_p = NULL;
     zapparams(&kop);
     return (dsaret);

crypto/evp/evp_key.c

@@ -104,6 +104,8 @@ int EVP_read_pw_string_min(char *buf, int min, int len, const char *prompt,
     if ((prompt == NULL) && (prompt_string[0] != '\0'))
         prompt = prompt_string;
     ui = UI_new();
+    if (ui == NULL)
+        return -1;
     UI_add_input_string(ui, prompt, 0, buf, min,
                         (len >= BUFSIZ) ? BUFSIZ - 1 : len);
     if (verify)

crypto/jpake/jpake.c

@@ -218,6 +218,9 @@ static int verify_zkp(const JPAKE_STEP_PART *p, const BIGNUM *zkpg,
     BIGNUM *t3 = BN_new();
     int ret = 0;
 
+    if (h == NULL || t1 == NULL || t2 == NULL || t3 == NULL)
+        goto end;
+
     zkp_hash(h, zkpg, p, ctx->p.peer_name);
 
     /* t1 = g^b */
@@ -233,6 +236,7 @@ static int verify_zkp(const JPAKE_STEP_PART *p, const BIGNUM *zkpg,
     else
         JPAKEerr(JPAKE_F_VERIFY_ZKP, JPAKE_R_ZKP_VERIFY_FAILED);
 
+end:
     /* cleanup */
     BN_free(t3);
     BN_free(t2);

crypto/pem/pem_info.c

@@ -172,6 +172,8 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
             xi->enc_len = 0;
 
             xi->x_pkey = X509_PKEY_new();
+            if (xi->x_pkey == NULL)
+                goto err;
             ptype = EVP_PKEY_RSA;
             pp = &xi->x_pkey->dec_pkey;
             if ((int)strlen(header) > 10) /* assume encrypted */
@@ -193,6 +195,8 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
             xi->enc_len = 0;
 
             xi->x_pkey = X509_PKEY_new();
+            if (xi->x_pkey == NULL)
+                goto err;
             ptype = EVP_PKEY_DSA;
             pp = &xi->x_pkey->dec_pkey;
             if ((int)strlen(header) > 10) /* assume encrypted */
@@ -214,6 +218,8 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
             xi->enc_len = 0;
 
             xi->x_pkey = X509_PKEY_new();
+            if (xi->x_pkey == NULL)
+                goto err;
             ptype = EVP_PKEY_EC;
             pp = &xi->x_pkey->dec_pkey;
             if ((int)strlen(header) > 10) /* assume encrypted */

crypto/pkcs7/pk7_doit.c

@@ -656,6 +656,8 @@ BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
             bio = BIO_new_mem_buf(data_body->data, data_body->length);
         else {
             bio = BIO_new(BIO_s_mem());
+            if (bio == NULL)
+                goto err;
             BIO_set_mem_eof_return(bio, 0);
         }
         if (bio == NULL)

crypto/x509v3/v3_cpols.c

@@ -186,6 +186,10 @@ static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
                 goto err;
             }
             pol = POLICYINFO_new();
+            if (pol == NULL) {
+                X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
+                goto err;
+            }
             pol->policyid = pobj;
         }
         if (!sk_POLICYINFO_push(pols, pol)) {

crypto/x509v3/v3_ncons.c

@@ -132,6 +132,8 @@ static void *v2i_NAME_CONSTRAINTS(const X509V3_EXT_METHOD *method,
         }
         tval.value = val->value;
         sub = GENERAL_SUBTREE_new();
+        if (sub == NULL)
+            goto memerr;
         if (!v2i_GENERAL_NAME_ex(sub->base, method, ctx, &tval, 1))
             goto err;
         if (!*ptree)

engines/e_chil.c

@@ -839,6 +839,10 @@ static EVP_PKEY *hwcrhk_load_privkey(ENGINE *eng, const char *key_id,
     bn_fix_top(rtmp->n);
 
     res = EVP_PKEY_new();
+    if (res == NULL) {
+        HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_CHIL_ERROR);
+        goto err;
+    }
     EVP_PKEY_assign_RSA(res, rtmp);
 #  endif
 

ssl/s3_clnt.c

@@ -2825,6 +2825,11 @@ int ssl3_send_client_key_exchange(SSL *s)
 
             pkey_ctx = EVP_PKEY_CTX_new(pub_key =
                                         X509_get_pubkey(peer_cert), NULL);
+            if (pkey_ctx == NULL) {
+                SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+                       ERR_R_MALLOC_FAILURE);
+                goto err;
+            }
             /*
              * If we have send a certificate, and certificate key
              *

ssl/s3_srvr.c

@@ -2878,6 +2878,11 @@ int ssl3_get_client_key_exchange(SSL *s)
             pk = s->cert->pkeys[SSL_PKEY_GOST01].privatekey;
 
         pkey_ctx = EVP_PKEY_CTX_new(pk, NULL);
+        if (pkey_ctx == NULL) {
+            al = SSL_AD_INTERNAL_ERROR;
+            SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
+            goto f_err;
+        }
         EVP_PKEY_decrypt_init(pkey_ctx);
         /*
          * If client certificate is present and is of the same type, maybe
@@ -3122,6 +3127,11 @@ int ssl3_get_cert_verify(SSL *s)
         unsigned char signature[64];
         int idx;
         EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new(pkey, NULL);
+        if (pctx == NULL) {
+            al = SSL_AD_INTERNAL_ERROR;
+            SSLerr(SSL_F_SSL3_GET_CERT_VERIFY, ERR_R_MALLOC_FAILURE);
+            goto f_err;
+        }
         EVP_PKEY_verify_init(pctx);
         if (i != 64) {
             fprintf(stderr, "GOST signature length is %d", i);