[Security vulnerability] Prevent null pointer dereference

Change-Id: I24e3eab7d754cd5c3794a5eff412270ada9b352d

diff --git a/provider-interface/download-provider-interface.c b/provider-interface/download-provider-interface.c
index e867b75..b3e0d4b 100755 (executable)
--- a/provider-interface/download-provider-interface.c
+++ b/provider-interface/download-provider-interface.c
@@ -885,6 +885,9 @@ int dp_interface_get_destination(const int id, char **path)
        }
 
        *path = strdup(g_interface_slots[index].downloaded_path);
+       if (*path == NULL)
+               return DOWNLOAD_ADAPTOR_ERROR_OUT_OF_MEMORY;
+
        return DOWNLOAD_ADAPTOR_ERROR_NONE;
 }
 
@@ -914,6 +917,8 @@ int dp_interface_get_downloaded_file_path(const int id, char **path)
                /* Converted. Use converted path. */
                TRACE_ERROR("Converted filename : %s -> %s", *path, compat_filename);
                *path = strdup(compat_filename);
+               if (*path == NULL)
+                       ret = DOWNLOAD_ADAPTOR_ERROR_OUT_OF_MEMORY;
        }
        return ret;
 }
@@ -937,6 +942,10 @@ int dp_interface_get_temp_path(const int id, char **temp_path)
        } else {
                *temp_path = strdup(g_interface_slots[index].saved_temp_path);
        }
+
+       if (*temp_path == NULL)
+               ret = DOWNLOAD_ADAPTOR_ERROR_OUT_OF_MEMORY;
+
        return ret;
 }