Fix some more memory leaks with TXT_DB_insert.

Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2684)

apps/ca.c

@@ -2062,19 +2062,26 @@ static int do_revoke(X509 *x509, CA_DB *db, REVINFO_TYPE rev_type,
         row[DB_rev_date] = NULL;
         row[DB_file] = OPENSSL_strdup("unknown");
 
+        if (row[DB_type] == NULL || row[DB_file] == NULL) {
+            BIO_printf(bio_err, "Memory allocation failure\n");
+            goto end;
+        }
+
         irow = app_malloc(sizeof(*irow) * (DB_NUMBER + 1), "row ptr");
-        for (i = 0; i < DB_NUMBER; i++) {
+        for (i = 0; i < DB_NUMBER; i++)
             irow[i] = row[i];
-            row[i] = NULL;
-        }
         irow[DB_NUMBER] = NULL;
 
         if (!TXT_DB_insert(db->db, irow)) {
             BIO_printf(bio_err, "failed to update database\n");
             BIO_printf(bio_err, "TXT_DB error number %ld\n", db->db->error);
+            OPENSSL_free(irow);
             goto end;
         }
 
+        for (i = 0; i < DB_NUMBER; i++)
+            row[i] = NULL;
+
         /* Revoke Certificate */
         if (rev_type == REV_VALID)
             ok = 1;
@@ -2108,9 +2115,8 @@ static int do_revoke(X509 *x509, CA_DB *db, REVINFO_TYPE rev_type,
     }
     ok = 1;
  end:
-    for (i = 0; i < DB_NUMBER; i++) {
+    for (i = 0; i < DB_NUMBER; i++)
         OPENSSL_free(row[i]);
-    }
     return (ok);
 }
 

apps/srp.c

@@ -92,10 +92,8 @@ static int update_index(CA_DB *db, char **row)
     int i;
 
     irow = app_malloc(sizeof(*irow) * (DB_NUMBER + 1), "row pointers");
-    for (i = 0; i < DB_NUMBER; i++) {
+    for (i = 0; i < DB_NUMBER; i++)
         irow[i] = row[i];
-        row[i] = NULL;
-    }
     irow[DB_NUMBER] = NULL;
 
     if (!TXT_DB_insert(db->db, irow)) {