int __glXDisp_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc)
{
    xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc;

    return DoGetDrawableAttributes(cl, req->drawable);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.